From 02050426e9d69f17bc3a4e376086108f0d48ec28 Mon Sep 17 00:00:00 2001 From: "gcf-owl-bot[bot]" <78513119+gcf-owl-bot[bot]@users.noreply.github.com> Date: Thu, 20 Jul 2023 13:47:16 -0400 Subject: [PATCH] feat!: [documentai] removed id field from Document message (#9642) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit * feat!: removed id field from Document message feat: added http configuration and document publishing for v1beta2 feat: added ImportDocuments, GetDocument and BatchDeleteDocuments RPCs for v1beta3 PiperOrigin-RevId: 548236986 Source-Link: https://github.com/googleapis/googleapis/commit/237b3c1ff2d951fd34f45a7b62d1ca5f31305fd7 Source-Link: https://github.com/googleapis/googleapis-gen/commit/29f701c9f344e196fbb81a81e65f90ddba5a06f3 Copy-Tag: eyJwIjoiamF2YS1kb2N1bWVudC1haS8uT3dsQm90LnlhbWwiLCJoIjoiMjlmNzAxYzlmMzQ0ZTE5NmZiYjgxYTgxZTY1ZjkwZGRiYTVhMDZmMyJ9 * 🦉 Updates from OwlBot post-processor See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md --------- Co-authored-by: Owl Bot --- java-document-ai/README.md | 4 +- .../v1/DocumentProcessorServiceClient.java | 5 + .../DocumentUnderstandingServiceClient.java | 250 + .../DocumentUnderstandingServiceSettings.java | 30 + .../documentai/v1beta2/gapic_metadata.json | 6 + .../DocumentUnderstandingServiceStub.java | 19 + ...umentUnderstandingServiceStubSettings.java | 126 +- .../GrpcDocumentUnderstandingServiceStub.java | 74 + .../DocumentProcessorServiceClient.java | 4 +- .../v1beta3/DocumentServiceClient.java | 398 +- .../v1beta3/DocumentServiceSettings.java | 67 +- .../documentai/v1beta3/gapic_metadata.json | 9 + .../documentai/v1beta3/package-info.java | 4 +- .../v1beta3/stub/DocumentServiceStub.java | 32 + .../stub/DocumentServiceStubSettings.java | 188 +- .../v1beta3/stub/GrpcDocumentServiceStub.java | 129 + .../stub/HttpJsonDocumentServiceStub.java | 227 + ...ocumentUnderstandingServiceClientTest.java | 115 +- .../documentai/v1beta2/MockLocations.java | 59 + .../documentai/v1beta2/MockLocationsImpl.java | 105 + .../DocumentServiceClientHttpJsonTest.java | 240 +- .../v1beta3/DocumentServiceClientTest.java | 208 +- .../v1beta3/MockDocumentServiceImpl.java | 63 + .../v1beta3/DocumentServiceGrpc.java | 359 +- .../documentai/v1/BatchProcessRequest.java | 267 + .../v1/BatchProcessRequestOrBuilder.java | 35 + .../documentai/v1/DocumentAiProcessor.java | 72 +- .../v1/DocumentAiProcessorService.java | 624 +- .../cloud/documentai/v1/DocumentIoProto.java | 47 +- .../google/cloud/documentai/v1/OcrConfig.java | 2291 + .../documentai/v1/OcrConfigOrBuilder.java | 190 + .../cloud/documentai/v1/ProcessOptions.java | 716 + .../v1/ProcessOptionsOrBuilder.java | 63 + .../cloud/documentai/v1/ProcessRequest.java | 600 +- .../v1/ProcessRequestOrBuilder.java | 70 + .../cloud/documentai/v1/ProcessorVersion.java | 16 +- .../v1/ProcessorVersionOrBuilder.java | 4 +- .../v1/TrainProcessorVersionRequest.java | 1371 +- ...TrainProcessorVersionRequestOrBuilder.java | 47 + .../cloud/documentai/v1/document_io.proto | 41 + .../v1/document_processor_service.proto | 38 + .../cloud/documentai/v1/processor.proto | 4 +- .../cloud/documentai/v1beta2/Barcode.java | 1211 + .../documentai/v1beta2/BarcodeOrBuilder.java | 164 + .../documentai/v1beta2/BarcodeProto.java | 68 + .../cloud/documentai/v1beta2/Document.java | 72689 +++++++++++----- .../documentai/v1beta2/DocumentAiProto.java | 152 +- .../documentai/v1beta2/DocumentOrBuilder.java | 274 +- .../documentai/v1beta2/DocumentProto.java | 636 +- .../v1beta2/FormExtractionParams.java | 313 +- .../FormExtractionParamsOrBuilder.java | 69 +- .../cloud/documentai/v1beta2/InputConfig.java | 77 +- .../v1beta2/InputConfigOrBuilder.java | 22 +- .../documentai/v1beta2/KeyValuePairHint.java | 4 +- .../documentai/v1beta2/NormalizedVertex.java | 8 +- .../v1beta2/NormalizedVertexOrBuilder.java | 2 +- .../v1beta2/ProcessDocumentRequest.java | 72 +- .../ProcessDocumentRequestOrBuilder.java | 18 +- .../v1beta2/TableExtractionParams.java | 39 +- .../TableExtractionParamsOrBuilder.java | 12 +- .../cloud/documentai/v1beta2/Vertex.java | 8 +- .../documentai/v1beta2/VertexOrBuilder.java | 2 +- .../cloud/documentai/v1beta2/barcode.proto | 69 + .../cloud/documentai/v1beta2/document.proto | 685 +- .../v1beta2/document_understanding.proto | 49 +- .../cloud/documentai/v1beta2/geometry.proto | 7 +- .../v1beta3/BatchDatasetDocuments.java | 2237 + .../BatchDatasetDocumentsOrBuilder.java | 113 + .../v1beta3/BatchDeleteDocumentsMetadata.java | 2603 + ...BatchDeleteDocumentsMetadataOrBuilder.java | 157 + .../v1beta3/BatchDeleteDocumentsRequest.java | 963 + .../BatchDeleteDocumentsRequestOrBuilder.java | 104 + .../v1beta3/BatchDeleteDocumentsResponse.java | 438 + ...BatchDeleteDocumentsResponseOrBuilder.java | 24 + .../v1beta3/BatchProcessMetadata.java | 18 +- .../v1beta3/BatchProcessRequest.java | 8 +- .../v1beta3/BatchProcessRequestOrBuilder.java | 4 +- .../cloud/documentai/v1beta3/DatasetName.java | 223 + .../documentai/v1beta3/DatasetProto.java | 174 +- .../documentai/v1beta3/DatasetSplitType.java | 203 + .../v1beta3/DocumentAiDocumentService.java | 361 +- .../v1beta3/DocumentAiProcessor.java | 74 +- .../v1beta3/DocumentAiProcessorService.java | 767 +- .../cloud/documentai/v1beta3/DocumentId.java | 2983 + .../v1beta3/DocumentIdOrBuilder.java | 140 + .../documentai/v1beta3/DocumentPageRange.java | 628 + .../v1beta3/DocumentPageRangeOrBuilder.java | 51 + .../documentai/v1beta3/DocumentProto.java | 33 +- .../v1beta3/GetDocumentRequest.java | 1472 + .../v1beta3/GetDocumentRequestOrBuilder.java | 175 + .../v1beta3/GetDocumentResponse.java | 603 + .../v1beta3/GetDocumentResponseOrBuilder.java | 40 + .../v1beta3/ImportDocumentsMetadata.java | 4308 + .../ImportDocumentsMetadataOrBuilder.java | 210 + .../v1beta3/ImportDocumentsRequest.java | 3462 + .../ImportDocumentsRequestOrBuilder.java | 132 + .../v1beta3/ImportDocumentsResponse.java | 432 + .../ImportDocumentsResponseOrBuilder.java | 24 + .../documentai/v1beta3/ProcessRequest.java | 377 +- .../v1beta3/ProcessRequestOrBuilder.java | 39 +- .../documentai/v1beta3/ProcessResponse.java | 14 +- .../v1beta3/ProcessResponseOrBuilder.java | 4 +- .../documentai/v1beta3/ProcessorVersion.java | 16 +- .../v1beta3/ProcessorVersionOrBuilder.java | 4 +- .../v1beta3/ReviewDocumentRequest.java | 8 +- .../ReviewDocumentRequestOrBuilder.java | 4 +- .../cloud/documentai/v1beta3/RevisionRef.java | 1386 + .../v1beta3/RevisionRefOrBuilder.java | 144 + .../cloud/documentai/v1beta3/dataset.proto | 53 + .../cloud/documentai/v1beta3/document.proto | 32 + .../v1beta3/document_processor_service.proto | 3 + .../documentai/v1beta3/document_service.proto | 213 + .../cloud/documentai/v1beta3/processor.proto | 4 +- .../AsyncBatchProcessDocuments.java | 2 + .../AsyncBatchProcessDocumentsLRO.java | 2 + .../SyncBatchProcessDocuments.java | 2 + .../processdocument/AsyncProcessDocument.java | 2 + .../processdocument/SyncProcessDocument.java | 2 + .../getlocation/AsyncGetLocation.java | 47 + .../getlocation/SyncGetLocation.java | 43 + .../listlocations/AsyncListLocations.java | 55 + .../AsyncListLocationsPaged.java | 63 + .../listlocations/SyncListLocations.java | 52 + .../SyncBatchProcessDocumentsString.java | 4 +- .../SyncProcessDocumentString.java | 4 +- .../AsyncBatchDeleteDocuments.java | 51 + .../AsyncBatchDeleteDocumentsLRO.java | 52 + .../SyncBatchDeleteDocuments.java | 48 + .../SyncBatchDeleteDocumentsString.java | 42 + .../getdocument/AsyncGetDocument.java | 56 + .../getdocument/SyncGetDocument.java | 52 + .../SyncGetDocumentDatasetname.java | 42 + .../getdocument/SyncGetDocumentString.java | 42 + .../importdocuments/AsyncImportDocuments.java | 53 + .../AsyncImportDocumentsLRO.java | 54 + .../importdocuments/SyncImportDocuments.java | 49 + .../SyncImportDocumentsDatasetname.java | 42 + .../SyncImportDocumentsString.java | 42 + .../SyncGetDocument.java} | 14 +- .../SyncGetDocument.java} | 14 +- 140 files changed, 88196 insertions(+), 24067 deletions(-) create mode 100644 java-document-ai/google-cloud-document-ai/src/test/java/com/google/cloud/documentai/v1beta2/MockLocations.java create mode 100644 java-document-ai/google-cloud-document-ai/src/test/java/com/google/cloud/documentai/v1beta2/MockLocationsImpl.java create mode 100644 java-document-ai/proto-google-cloud-document-ai-v1/src/main/java/com/google/cloud/documentai/v1/OcrConfig.java create mode 100644 java-document-ai/proto-google-cloud-document-ai-v1/src/main/java/com/google/cloud/documentai/v1/OcrConfigOrBuilder.java create mode 100644 java-document-ai/proto-google-cloud-document-ai-v1/src/main/java/com/google/cloud/documentai/v1/ProcessOptions.java create mode 100644 java-document-ai/proto-google-cloud-document-ai-v1/src/main/java/com/google/cloud/documentai/v1/ProcessOptionsOrBuilder.java create mode 100644 java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/java/com/google/cloud/documentai/v1beta2/Barcode.java create mode 100644 java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/java/com/google/cloud/documentai/v1beta2/BarcodeOrBuilder.java create mode 100644 java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/java/com/google/cloud/documentai/v1beta2/BarcodeProto.java create mode 100644 java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/proto/google/cloud/documentai/v1beta2/barcode.proto create mode 100644 java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/BatchDatasetDocuments.java create mode 100644 java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/BatchDatasetDocumentsOrBuilder.java create mode 100644 java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/BatchDeleteDocumentsMetadata.java create mode 100644 java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/BatchDeleteDocumentsMetadataOrBuilder.java create mode 100644 java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/BatchDeleteDocumentsRequest.java create mode 100644 java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/BatchDeleteDocumentsRequestOrBuilder.java create mode 100644 java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/BatchDeleteDocumentsResponse.java create mode 100644 java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/BatchDeleteDocumentsResponseOrBuilder.java create mode 100644 java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/DatasetName.java create mode 100644 java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/DatasetSplitType.java create mode 100644 java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/DocumentId.java create mode 100644 java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/DocumentIdOrBuilder.java create mode 100644 java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/DocumentPageRange.java create mode 100644 java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/DocumentPageRangeOrBuilder.java create mode 100644 java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/GetDocumentRequest.java create mode 100644 java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/GetDocumentRequestOrBuilder.java create mode 100644 java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/GetDocumentResponse.java create mode 100644 java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/GetDocumentResponseOrBuilder.java create mode 100644 java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/ImportDocumentsMetadata.java create mode 100644 java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/ImportDocumentsMetadataOrBuilder.java create mode 100644 java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/ImportDocumentsRequest.java create mode 100644 java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/ImportDocumentsRequestOrBuilder.java create mode 100644 java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/ImportDocumentsResponse.java create mode 100644 java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/ImportDocumentsResponseOrBuilder.java create mode 100644 java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/RevisionRef.java create mode 100644 java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/RevisionRefOrBuilder.java create mode 100644 java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta2/documentunderstandingservice/getlocation/AsyncGetLocation.java create mode 100644 java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta2/documentunderstandingservice/getlocation/SyncGetLocation.java create mode 100644 java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta2/documentunderstandingservice/listlocations/AsyncListLocations.java create mode 100644 java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta2/documentunderstandingservice/listlocations/AsyncListLocationsPaged.java create mode 100644 java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta2/documentunderstandingservice/listlocations/SyncListLocations.java create mode 100644 java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta3/documentservice/batchdeletedocuments/AsyncBatchDeleteDocuments.java create mode 100644 java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta3/documentservice/batchdeletedocuments/AsyncBatchDeleteDocumentsLRO.java create mode 100644 java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta3/documentservice/batchdeletedocuments/SyncBatchDeleteDocuments.java create mode 100644 java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta3/documentservice/batchdeletedocuments/SyncBatchDeleteDocumentsString.java create mode 100644 java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta3/documentservice/getdocument/AsyncGetDocument.java create mode 100644 java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta3/documentservice/getdocument/SyncGetDocument.java create mode 100644 java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta3/documentservice/getdocument/SyncGetDocumentDatasetname.java create mode 100644 java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta3/documentservice/getdocument/SyncGetDocumentString.java create mode 100644 java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta3/documentservice/importdocuments/AsyncImportDocuments.java create mode 100644 java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta3/documentservice/importdocuments/AsyncImportDocumentsLRO.java create mode 100644 java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta3/documentservice/importdocuments/SyncImportDocuments.java create mode 100644 java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta3/documentservice/importdocuments/SyncImportDocumentsDatasetname.java create mode 100644 java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta3/documentservice/importdocuments/SyncImportDocumentsString.java rename java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta3/documentservicesettings/{getdatasetschema/SyncGetDatasetSchema.java => getdocument/SyncGetDocument.java} (87%) rename java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta3/stub/documentservicestubsettings/{getdatasetschema/SyncGetDatasetSchema.java => getdocument/SyncGetDocument.java} (87%) diff --git a/java-document-ai/README.md b/java-document-ai/README.md index 4c3c46c07811..b90c440e5ce9 100644 --- a/java-document-ai/README.md +++ b/java-document-ai/README.md @@ -20,7 +20,7 @@ If you are using Maven with [BOM][libraries-bom], add this to your pom.xml file: com.google.cloud libraries-bom - 26.17.0 + 26.19.0 pom import @@ -195,7 +195,7 @@ Java is a registered trademark of Oracle and/or its affiliates. [kokoro-badge-link-5]: http://storage.googleapis.com/cloud-devrel-public/java/badges/google-cloud-java/java11.html [stability-image]: https://img.shields.io/badge/stability-stable-green [maven-version-image]: https://img.shields.io/maven-central/v/com.google.cloud/google-cloud-document-ai.svg -[maven-version-link]: https://central.sonatype.com/artifact/com.google.cloud/google-cloud-document-ai/2.23.0 +[maven-version-link]: https://central.sonatype.com/artifact/com.google.cloud/google-cloud-document-ai/2.25.0 [authentication]: https://github.com/googleapis/google-cloud-java#authentication [auth-scopes]: https://developers.google.com/identity/protocols/oauth2/scopes [predefined-iam-roles]: https://cloud.google.com/iam/docs/understanding-roles#predefined_roles diff --git a/java-document-ai/google-cloud-document-ai/src/main/java/com/google/cloud/documentai/v1/DocumentProcessorServiceClient.java b/java-document-ai/google-cloud-document-ai/src/main/java/com/google/cloud/documentai/v1/DocumentProcessorServiceClient.java index 51873b4c19dd..5a747e1d0239 100644 --- a/java-document-ai/google-cloud-document-ai/src/main/java/com/google/cloud/documentai/v1/DocumentProcessorServiceClient.java +++ b/java-document-ai/google-cloud-document-ai/src/main/java/com/google/cloud/documentai/v1/DocumentProcessorServiceClient.java @@ -306,6 +306,7 @@ public final ProcessResponse processDocument(String name) { * .setName(ProcessorName.of("[PROJECT]", "[LOCATION]", "[PROCESSOR]").toString()) * .setSkipHumanReview(true) * .setFieldMask(FieldMask.newBuilder().build()) + * .setProcessOptions(ProcessOptions.newBuilder().build()) * .build(); * ProcessResponse response = documentProcessorServiceClient.processDocument(request); * } @@ -337,6 +338,7 @@ public final ProcessResponse processDocument(ProcessRequest request) { * .setName(ProcessorName.of("[PROJECT]", "[LOCATION]", "[PROCESSOR]").toString()) * .setSkipHumanReview(true) * .setFieldMask(FieldMask.newBuilder().build()) + * .setProcessOptions(ProcessOptions.newBuilder().build()) * .build(); * ApiFuture future = * documentProcessorServiceClient.processDocumentCallable().futureCall(request); @@ -440,6 +442,7 @@ public final UnaryCallable processDocumentCalla * .setInputDocuments(BatchDocumentsInputConfig.newBuilder().build()) * .setDocumentOutputConfig(DocumentOutputConfig.newBuilder().build()) * .setSkipHumanReview(true) + * .setProcessOptions(ProcessOptions.newBuilder().build()) * .build(); * BatchProcessResponse response = * documentProcessorServiceClient.batchProcessDocumentsAsync(request).get(); @@ -475,6 +478,7 @@ public final UnaryCallable processDocumentCalla * .setInputDocuments(BatchDocumentsInputConfig.newBuilder().build()) * .setDocumentOutputConfig(DocumentOutputConfig.newBuilder().build()) * .setSkipHumanReview(true) + * .setProcessOptions(ProcessOptions.newBuilder().build()) * .build(); * OperationFuture future = * documentProcessorServiceClient @@ -511,6 +515,7 @@ public final UnaryCallable processDocumentCalla * .setInputDocuments(BatchDocumentsInputConfig.newBuilder().build()) * .setDocumentOutputConfig(DocumentOutputConfig.newBuilder().build()) * .setSkipHumanReview(true) + * .setProcessOptions(ProcessOptions.newBuilder().build()) * .build(); * ApiFuture future = * documentProcessorServiceClient.batchProcessDocumentsCallable().futureCall(request); diff --git a/java-document-ai/google-cloud-document-ai/src/main/java/com/google/cloud/documentai/v1beta2/DocumentUnderstandingServiceClient.java b/java-document-ai/google-cloud-document-ai/src/main/java/com/google/cloud/documentai/v1beta2/DocumentUnderstandingServiceClient.java index 0f7eda8ebd55..f17fdf37ba4a 100644 --- a/java-document-ai/google-cloud-document-ai/src/main/java/com/google/cloud/documentai/v1beta2/DocumentUnderstandingServiceClient.java +++ b/java-document-ai/google-cloud-document-ai/src/main/java/com/google/cloud/documentai/v1beta2/DocumentUnderstandingServiceClient.java @@ -16,13 +16,24 @@ package com.google.cloud.documentai.v1beta2; +import com.google.api.core.ApiFuture; +import com.google.api.core.ApiFutures; import com.google.api.core.BetaApi; import com.google.api.gax.core.BackgroundResource; import com.google.api.gax.longrunning.OperationFuture; +import com.google.api.gax.paging.AbstractFixedSizeCollection; +import com.google.api.gax.paging.AbstractPage; +import com.google.api.gax.paging.AbstractPagedListResponse; import com.google.api.gax.rpc.OperationCallable; +import com.google.api.gax.rpc.PageContext; import com.google.api.gax.rpc.UnaryCallable; import com.google.cloud.documentai.v1beta2.stub.DocumentUnderstandingServiceStub; import com.google.cloud.documentai.v1beta2.stub.DocumentUnderstandingServiceStubSettings; +import com.google.cloud.location.GetLocationRequest; +import com.google.cloud.location.ListLocationsRequest; +import com.google.cloud.location.ListLocationsResponse; +import com.google.cloud.location.Location; +import com.google.common.util.concurrent.MoreExecutors; import com.google.longrunning.Operation; import com.google.longrunning.OperationsClient; import java.io.IOException; @@ -393,6 +404,169 @@ public final UnaryCallable processDocumentCall return stub.processDocumentCallable(); } + // AUTO-GENERATED DOCUMENTATION AND METHOD. + /** + * Lists information about the supported locations for this service. + * + *

Sample code: + * + * 

{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (DocumentUnderstandingServiceClient documentUnderstandingServiceClient =
+   *     DocumentUnderstandingServiceClient.create()) {
+   *   ListLocationsRequest request =
+   *       ListLocationsRequest.newBuilder()
+   *           .setName("name3373707")
+   *           .setFilter("filter-1274492040")
+   *           .setPageSize(883849137)
+   *           .setPageToken("pageToken873572522")
+   *           .build();
+   *   for (Location element :
+   *       documentUnderstandingServiceClient.listLocations(request).iterateAll()) {
+   *     // doThingsWith(element);
+   *   }
+   * }
+   * }
+ * + * @param request The request object containing all of the parameters for the API call. + * @throws com.google.api.gax.rpc.ApiException if the remote call fails + */ + public final ListLocationsPagedResponse listLocations(ListLocationsRequest request) { + return listLocationsPagedCallable().call(request); + } + + // AUTO-GENERATED DOCUMENTATION AND METHOD. + /** + * Lists information about the supported locations for this service. + * + *

Sample code: + * + * 

{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (DocumentUnderstandingServiceClient documentUnderstandingServiceClient =
+   *     DocumentUnderstandingServiceClient.create()) {
+   *   ListLocationsRequest request =
+   *       ListLocationsRequest.newBuilder()
+   *           .setName("name3373707")
+   *           .setFilter("filter-1274492040")
+   *           .setPageSize(883849137)
+   *           .setPageToken("pageToken873572522")
+   *           .build();
+   *   ApiFuture future =
+   *       documentUnderstandingServiceClient.listLocationsPagedCallable().futureCall(request);
+   *   // Do something.
+   *   for (Location element : future.get().iterateAll()) {
+   *     // doThingsWith(element);
+   *   }
+   * }
+   * }
+ */ + public final UnaryCallable + listLocationsPagedCallable() { + return stub.listLocationsPagedCallable(); + } + + // AUTO-GENERATED DOCUMENTATION AND METHOD. + /** + * Lists information about the supported locations for this service. + * + *

Sample code: + * + * 

{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (DocumentUnderstandingServiceClient documentUnderstandingServiceClient =
+   *     DocumentUnderstandingServiceClient.create()) {
+   *   ListLocationsRequest request =
+   *       ListLocationsRequest.newBuilder()
+   *           .setName("name3373707")
+   *           .setFilter("filter-1274492040")
+   *           .setPageSize(883849137)
+   *           .setPageToken("pageToken873572522")
+   *           .build();
+   *   while (true) {
+   *     ListLocationsResponse response =
+   *         documentUnderstandingServiceClient.listLocationsCallable().call(request);
+   *     for (Location element : response.getLocationsList()) {
+   *       // doThingsWith(element);
+   *     }
+   *     String nextPageToken = response.getNextPageToken();
+   *     if (!Strings.isNullOrEmpty(nextPageToken)) {
+   *       request = request.toBuilder().setPageToken(nextPageToken).build();
+   *     } else {
+   *       break;
+   *     }
+   *   }
+   * }
+   * }
+ */ + public final UnaryCallable listLocationsCallable() { + return stub.listLocationsCallable(); + } + + // AUTO-GENERATED DOCUMENTATION AND METHOD. + /** + * Gets information about a location. + * + *

Sample code: + * + * 

{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (DocumentUnderstandingServiceClient documentUnderstandingServiceClient =
+   *     DocumentUnderstandingServiceClient.create()) {
+   *   GetLocationRequest request = GetLocationRequest.newBuilder().setName("name3373707").build();
+   *   Location response = documentUnderstandingServiceClient.getLocation(request);
+   * }
+   * }
+ * + * @param request The request object containing all of the parameters for the API call. + * @throws com.google.api.gax.rpc.ApiException if the remote call fails + */ + public final Location getLocation(GetLocationRequest request) { + return getLocationCallable().call(request); + } + + // AUTO-GENERATED DOCUMENTATION AND METHOD. + /** + * Gets information about a location. + * + *

Sample code: + * + * 

{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (DocumentUnderstandingServiceClient documentUnderstandingServiceClient =
+   *     DocumentUnderstandingServiceClient.create()) {
+   *   GetLocationRequest request = GetLocationRequest.newBuilder().setName("name3373707").build();
+   *   ApiFuture future =
+   *       documentUnderstandingServiceClient.getLocationCallable().futureCall(request);
+   *   // Do something.
+   *   Location response = future.get();
+   * }
+   * }
+ */ + public final UnaryCallable getLocationCallable() { + return stub.getLocationCallable(); + } + @Override public final void close() { stub.close(); @@ -422,4 +596,80 @@ public void shutdownNow() { public boolean awaitTermination(long duration, TimeUnit unit) throws InterruptedException { return stub.awaitTermination(duration, unit); } + + public static class ListLocationsPagedResponse + extends AbstractPagedListResponse< + ListLocationsRequest, + ListLocationsResponse, + Location, + ListLocationsPage, + ListLocationsFixedSizeCollection> { + + public static ApiFuture createAsync( + PageContext context, + ApiFuture futureResponse) { + ApiFuture futurePage = + ListLocationsPage.createEmptyPage().createPageAsync(context, futureResponse); + return ApiFutures.transform( + futurePage, + input -> new ListLocationsPagedResponse(input), + MoreExecutors.directExecutor()); + } + + private ListLocationsPagedResponse(ListLocationsPage page) { + super(page, ListLocationsFixedSizeCollection.createEmptyCollection()); + } + } + + public static class ListLocationsPage + extends AbstractPage< + ListLocationsRequest, ListLocationsResponse, Location, ListLocationsPage> { + + private ListLocationsPage( + PageContext context, + ListLocationsResponse response) { + super(context, response); + } + + private static ListLocationsPage createEmptyPage() { + return new ListLocationsPage(null, null); + } + + @Override + protected ListLocationsPage createPage( + PageContext context, + ListLocationsResponse response) { + return new ListLocationsPage(context, response); + } + + @Override + public ApiFuture createPageAsync( + PageContext context, + ApiFuture futureResponse) { + return super.createPageAsync(context, futureResponse); + } + } + + public static class ListLocationsFixedSizeCollection + extends AbstractFixedSizeCollection< + ListLocationsRequest, + ListLocationsResponse, + Location, + ListLocationsPage, + ListLocationsFixedSizeCollection> { + + private ListLocationsFixedSizeCollection(List pages, int collectionSize) { + super(pages, collectionSize); + } + + private static ListLocationsFixedSizeCollection createEmptyCollection() { + return new ListLocationsFixedSizeCollection(null, 0); + } + + @Override + protected ListLocationsFixedSizeCollection createCollection( + List pages, int collectionSize) { + return new ListLocationsFixedSizeCollection(pages, collectionSize); + } + } } diff --git a/java-document-ai/google-cloud-document-ai/src/main/java/com/google/cloud/documentai/v1beta2/DocumentUnderstandingServiceSettings.java b/java-document-ai/google-cloud-document-ai/src/main/java/com/google/cloud/documentai/v1beta2/DocumentUnderstandingServiceSettings.java index 61b9e23282cb..f221324cf7f9 100644 --- a/java-document-ai/google-cloud-document-ai/src/main/java/com/google/cloud/documentai/v1beta2/DocumentUnderstandingServiceSettings.java +++ b/java-document-ai/google-cloud-document-ai/src/main/java/com/google/cloud/documentai/v1beta2/DocumentUnderstandingServiceSettings.java @@ -16,6 +16,8 @@ package com.google.cloud.documentai.v1beta2; +import static com.google.cloud.documentai.v1beta2.DocumentUnderstandingServiceClient.ListLocationsPagedResponse; + import com.google.api.core.ApiFunction; import com.google.api.core.BetaApi; import com.google.api.gax.core.GoogleCredentialsProvider; @@ -25,9 +27,14 @@ import com.google.api.gax.rpc.ClientContext; import com.google.api.gax.rpc.ClientSettings; import com.google.api.gax.rpc.OperationCallSettings; +import com.google.api.gax.rpc.PagedCallSettings; import com.google.api.gax.rpc.TransportChannelProvider; import com.google.api.gax.rpc.UnaryCallSettings; import com.google.cloud.documentai.v1beta2.stub.DocumentUnderstandingServiceStubSettings; +import com.google.cloud.location.GetLocationRequest; +import com.google.cloud.location.ListLocationsRequest; +import com.google.cloud.location.ListLocationsResponse; +import com.google.cloud.location.Location; import com.google.longrunning.Operation; import java.io.IOException; import java.util.List; @@ -96,6 +103,17 @@ public UnaryCallSettings processDocumentSettin return ((DocumentUnderstandingServiceStubSettings) getStubSettings()).processDocumentSettings(); } + /** Returns the object with the settings used for calls to listLocations. */ + public PagedCallSettings + listLocationsSettings() { + return ((DocumentUnderstandingServiceStubSettings) getStubSettings()).listLocationsSettings(); + } + + /** Returns the object with the settings used for calls to getLocation. */ + public UnaryCallSettings getLocationSettings() { + return ((DocumentUnderstandingServiceStubSettings) getStubSettings()).getLocationSettings(); + } + public static final DocumentUnderstandingServiceSettings create( DocumentUnderstandingServiceStubSettings stub) throws IOException { return new DocumentUnderstandingServiceSettings.Builder(stub.toBuilder()).build(); @@ -212,6 +230,18 @@ public UnaryCallSettings.Builder processDocume return getStubSettingsBuilder().processDocumentSettings(); } + /** Returns the builder for the settings used for calls to listLocations. */ + public PagedCallSettings.Builder< + ListLocationsRequest, ListLocationsResponse, ListLocationsPagedResponse> + listLocationsSettings() { + return getStubSettingsBuilder().listLocationsSettings(); + } + + /** Returns the builder for the settings used for calls to getLocation. */ + public UnaryCallSettings.Builder getLocationSettings() { + return getStubSettingsBuilder().getLocationSettings(); + } + @Override public DocumentUnderstandingServiceSettings build() throws IOException { return new DocumentUnderstandingServiceSettings(this); diff --git a/java-document-ai/google-cloud-document-ai/src/main/java/com/google/cloud/documentai/v1beta2/gapic_metadata.json b/java-document-ai/google-cloud-document-ai/src/main/java/com/google/cloud/documentai/v1beta2/gapic_metadata.json index 4704ea7c6d17..1f6cdb878067 100644 --- a/java-document-ai/google-cloud-document-ai/src/main/java/com/google/cloud/documentai/v1beta2/gapic_metadata.json +++ b/java-document-ai/google-cloud-document-ai/src/main/java/com/google/cloud/documentai/v1beta2/gapic_metadata.json @@ -13,6 +13,12 @@ "BatchProcessDocuments": { "methods": ["batchProcessDocumentsAsync", "batchProcessDocumentsAsync", "batchProcessDocumentsOperationCallable", "batchProcessDocumentsCallable"] }, + "GetLocation": { + "methods": ["getLocation", "getLocationCallable"] + }, + "ListLocations": { + "methods": ["listLocations", "listLocationsPagedCallable", "listLocationsCallable"] + }, "ProcessDocument": { "methods": ["processDocument", "processDocumentCallable"] } diff --git a/java-document-ai/google-cloud-document-ai/src/main/java/com/google/cloud/documentai/v1beta2/stub/DocumentUnderstandingServiceStub.java b/java-document-ai/google-cloud-document-ai/src/main/java/com/google/cloud/documentai/v1beta2/stub/DocumentUnderstandingServiceStub.java index be8e9e7e22b0..ac2cba35f23c 100644 --- a/java-document-ai/google-cloud-document-ai/src/main/java/com/google/cloud/documentai/v1beta2/stub/DocumentUnderstandingServiceStub.java +++ b/java-document-ai/google-cloud-document-ai/src/main/java/com/google/cloud/documentai/v1beta2/stub/DocumentUnderstandingServiceStub.java @@ -16,6 +16,8 @@ package com.google.cloud.documentai.v1beta2.stub; +import static com.google.cloud.documentai.v1beta2.DocumentUnderstandingServiceClient.ListLocationsPagedResponse; + import com.google.api.core.BetaApi; import com.google.api.gax.core.BackgroundResource; import com.google.api.gax.rpc.OperationCallable; @@ -25,6 +27,10 @@ import com.google.cloud.documentai.v1beta2.Document; import com.google.cloud.documentai.v1beta2.OperationMetadata; import com.google.cloud.documentai.v1beta2.ProcessDocumentRequest; +import com.google.cloud.location.GetLocationRequest; +import com.google.cloud.location.ListLocationsRequest; +import com.google.cloud.location.ListLocationsResponse; +import com.google.cloud.location.Location; import com.google.longrunning.Operation; import com.google.longrunning.stub.OperationsStub; import javax.annotation.Generated; @@ -58,6 +64,19 @@ public UnaryCallable processDocumentCallable() throw new UnsupportedOperationException("Not implemented: processDocumentCallable()"); } + public UnaryCallable + listLocationsPagedCallable() { + throw new UnsupportedOperationException("Not implemented: listLocationsPagedCallable()"); + } + + public UnaryCallable listLocationsCallable() { + throw new UnsupportedOperationException("Not implemented: listLocationsCallable()"); + } + + public UnaryCallable getLocationCallable() { + throw new UnsupportedOperationException("Not implemented: getLocationCallable()"); + } + @Override public abstract void close(); } diff --git a/java-document-ai/google-cloud-document-ai/src/main/java/com/google/cloud/documentai/v1beta2/stub/DocumentUnderstandingServiceStubSettings.java b/java-document-ai/google-cloud-document-ai/src/main/java/com/google/cloud/documentai/v1beta2/stub/DocumentUnderstandingServiceStubSettings.java index 05da7fe6edbf..d7fb3827fbdb 100644 --- a/java-document-ai/google-cloud-document-ai/src/main/java/com/google/cloud/documentai/v1beta2/stub/DocumentUnderstandingServiceStubSettings.java +++ b/java-document-ai/google-cloud-document-ai/src/main/java/com/google/cloud/documentai/v1beta2/stub/DocumentUnderstandingServiceStubSettings.java @@ -16,7 +16,10 @@ package com.google.cloud.documentai.v1beta2.stub; +import static com.google.cloud.documentai.v1beta2.DocumentUnderstandingServiceClient.ListLocationsPagedResponse; + import com.google.api.core.ApiFunction; +import com.google.api.core.ApiFuture; import com.google.api.core.BetaApi; import com.google.api.gax.core.GaxProperties; import com.google.api.gax.core.GoogleCredentialsProvider; @@ -28,18 +31,28 @@ import com.google.api.gax.longrunning.OperationSnapshot; import com.google.api.gax.longrunning.OperationTimedPollAlgorithm; import com.google.api.gax.retrying.RetrySettings; +import com.google.api.gax.rpc.ApiCallContext; import com.google.api.gax.rpc.ApiClientHeaderProvider; import com.google.api.gax.rpc.ClientContext; import com.google.api.gax.rpc.OperationCallSettings; +import com.google.api.gax.rpc.PageContext; +import com.google.api.gax.rpc.PagedCallSettings; +import com.google.api.gax.rpc.PagedListDescriptor; +import com.google.api.gax.rpc.PagedListResponseFactory; import com.google.api.gax.rpc.StatusCode; import com.google.api.gax.rpc.StubSettings; import com.google.api.gax.rpc.TransportChannelProvider; import com.google.api.gax.rpc.UnaryCallSettings; +import com.google.api.gax.rpc.UnaryCallable; import com.google.cloud.documentai.v1beta2.BatchProcessDocumentsRequest; import com.google.cloud.documentai.v1beta2.BatchProcessDocumentsResponse; import com.google.cloud.documentai.v1beta2.Document; import com.google.cloud.documentai.v1beta2.OperationMetadata; import com.google.cloud.documentai.v1beta2.ProcessDocumentRequest; +import com.google.cloud.location.GetLocationRequest; +import com.google.cloud.location.ListLocationsRequest; +import com.google.cloud.location.ListLocationsResponse; +import com.google.cloud.location.Location; import com.google.common.collect.ImmutableList; import com.google.common.collect.ImmutableMap; import com.google.common.collect.ImmutableSet; @@ -102,6 +115,63 @@ public class DocumentUnderstandingServiceStubSettings BatchProcessDocumentsRequest, BatchProcessDocumentsResponse, OperationMetadata> batchProcessDocumentsOperationSettings; private final UnaryCallSettings processDocumentSettings; + private final PagedCallSettings< + ListLocationsRequest, ListLocationsResponse, ListLocationsPagedResponse> + listLocationsSettings; + private final UnaryCallSettings getLocationSettings; + + private static final PagedListDescriptor + LIST_LOCATIONS_PAGE_STR_DESC = + new PagedListDescriptor() { + @Override + public String emptyToken() { + return ""; + } + + @Override + public ListLocationsRequest injectToken(ListLocationsRequest payload, String token) { + return ListLocationsRequest.newBuilder(payload).setPageToken(token).build(); + } + + @Override + public ListLocationsRequest injectPageSize(ListLocationsRequest payload, int pageSize) { + return ListLocationsRequest.newBuilder(payload).setPageSize(pageSize).build(); + } + + @Override + public Integer extractPageSize(ListLocationsRequest payload) { + return payload.getPageSize(); + } + + @Override + public String extractNextToken(ListLocationsResponse payload) { + return payload.getNextPageToken(); + } + + @Override + public Iterable extractResources(ListLocationsResponse payload) { + return payload.getLocationsList() == null + ? ImmutableList.of() + : payload.getLocationsList(); + } + }; + + private static final PagedListResponseFactory< + ListLocationsRequest, ListLocationsResponse, ListLocationsPagedResponse> + LIST_LOCATIONS_PAGE_STR_FACT = + new PagedListResponseFactory< + ListLocationsRequest, ListLocationsResponse, ListLocationsPagedResponse>() { + @Override + public ApiFuture getFuturePagedResponse( + UnaryCallable callable, + ListLocationsRequest request, + ApiCallContext context, + ApiFuture futureResponse) { + PageContext pageContext = + PageContext.create(callable, LIST_LOCATIONS_PAGE_STR_DESC, request, context); + return ListLocationsPagedResponse.createAsync(pageContext, futureResponse); + } + }; /** Returns the object with the settings used for calls to batchProcessDocuments. */ public UnaryCallSettings @@ -121,6 +191,17 @@ public UnaryCallSettings processDocumentSettin return processDocumentSettings; } + /** Returns the object with the settings used for calls to listLocations. */ + public PagedCallSettings + listLocationsSettings() { + return listLocationsSettings; + } + + /** Returns the object with the settings used for calls to getLocation. */ + public UnaryCallSettings getLocationSettings() { + return getLocationSettings; + } + public DocumentUnderstandingServiceStub createStub() throws IOException { if (getTransportChannelProvider() .getTransportName() @@ -201,6 +282,8 @@ protected DocumentUnderstandingServiceStubSettings(Builder settingsBuilder) thro batchProcessDocumentsOperationSettings = settingsBuilder.batchProcessDocumentsOperationSettings().build(); processDocumentSettings = settingsBuilder.processDocumentSettings().build(); + listLocationsSettings = settingsBuilder.listLocationsSettings().build(); + getLocationSettings = settingsBuilder.getLocationSettings().build(); } /** Builder for DocumentUnderstandingServiceStubSettings. */ @@ -214,6 +297,10 @@ public static class Builder batchProcessDocumentsOperationSettings; private final UnaryCallSettings.Builder processDocumentSettings; + private final PagedCallSettings.Builder< + ListLocationsRequest, ListLocationsResponse, ListLocationsPagedResponse> + listLocationsSettings; + private final UnaryCallSettings.Builder getLocationSettings; private static final ImmutableMap> RETRYABLE_CODE_DEFINITIONS; @@ -225,6 +312,7 @@ public static class Builder ImmutableSet.copyOf( Lists.newArrayList( StatusCode.Code.DEADLINE_EXCEEDED, StatusCode.Code.UNAVAILABLE))); + definitions.put("no_retry_codes", ImmutableSet.copyOf(Lists.newArrayList())); RETRYABLE_CODE_DEFINITIONS = definitions.build(); } @@ -244,6 +332,8 @@ public static class Builder .setTotalTimeout(Duration.ofMillis(120000L)) .build(); definitions.put("retry_policy_0_params", settings); + settings = RetrySettings.newBuilder().setRpcTimeoutMultiplier(1.0).build(); + definitions.put("no_retry_params", settings); RETRY_PARAM_DEFINITIONS = definitions.build(); } @@ -257,10 +347,15 @@ protected Builder(ClientContext clientContext) { batchProcessDocumentsSettings = UnaryCallSettings.newUnaryCallSettingsBuilder(); batchProcessDocumentsOperationSettings = OperationCallSettings.newBuilder(); processDocumentSettings = UnaryCallSettings.newUnaryCallSettingsBuilder(); + listLocationsSettings = PagedCallSettings.newBuilder(LIST_LOCATIONS_PAGE_STR_FACT); + getLocationSettings = UnaryCallSettings.newUnaryCallSettingsBuilder(); unaryMethodSettingsBuilders = ImmutableList.>of( - batchProcessDocumentsSettings, processDocumentSettings); + batchProcessDocumentsSettings, + processDocumentSettings, + listLocationsSettings, + getLocationSettings); initDefaults(this); } @@ -271,10 +366,15 @@ protected Builder(DocumentUnderstandingServiceStubSettings settings) { batchProcessDocumentsOperationSettings = settings.batchProcessDocumentsOperationSettings.toBuilder(); processDocumentSettings = settings.processDocumentSettings.toBuilder(); + listLocationsSettings = settings.listLocationsSettings.toBuilder(); + getLocationSettings = settings.getLocationSettings.toBuilder(); unaryMethodSettingsBuilders = ImmutableList.>of( - batchProcessDocumentsSettings, processDocumentSettings); + batchProcessDocumentsSettings, + processDocumentSettings, + listLocationsSettings, + getLocationSettings); } private static Builder createDefault() { @@ -301,6 +401,16 @@ private static Builder initDefaults(Builder builder) { .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("retry_policy_0_codes")) .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("retry_policy_0_params")); + builder + .listLocationsSettings() + .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("no_retry_codes")) + .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("no_retry_params")); + + builder + .getLocationSettings() + .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("no_retry_codes")) + .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("no_retry_params")); + builder .batchProcessDocumentsOperationSettings() .setInitialCallSettings( @@ -364,6 +474,18 @@ public UnaryCallSettings.Builder processDocume return processDocumentSettings; } + /** Returns the builder for the settings used for calls to listLocations. */ + public PagedCallSettings.Builder< + ListLocationsRequest, ListLocationsResponse, ListLocationsPagedResponse> + listLocationsSettings() { + return listLocationsSettings; + } + + /** Returns the builder for the settings used for calls to getLocation. */ + public UnaryCallSettings.Builder getLocationSettings() { + return getLocationSettings; + } + @Override public DocumentUnderstandingServiceStubSettings build() throws IOException { return new DocumentUnderstandingServiceStubSettings(this); diff --git a/java-document-ai/google-cloud-document-ai/src/main/java/com/google/cloud/documentai/v1beta2/stub/GrpcDocumentUnderstandingServiceStub.java b/java-document-ai/google-cloud-document-ai/src/main/java/com/google/cloud/documentai/v1beta2/stub/GrpcDocumentUnderstandingServiceStub.java index 654b81b3e91b..99f5bec9f706 100644 --- a/java-document-ai/google-cloud-document-ai/src/main/java/com/google/cloud/documentai/v1beta2/stub/GrpcDocumentUnderstandingServiceStub.java +++ b/java-document-ai/google-cloud-document-ai/src/main/java/com/google/cloud/documentai/v1beta2/stub/GrpcDocumentUnderstandingServiceStub.java @@ -16,6 +16,8 @@ package com.google.cloud.documentai.v1beta2.stub; +import static com.google.cloud.documentai.v1beta2.DocumentUnderstandingServiceClient.ListLocationsPagedResponse; + import com.google.api.core.BetaApi; import com.google.api.gax.core.BackgroundResource; import com.google.api.gax.core.BackgroundResourceAggregation; @@ -30,6 +32,10 @@ import com.google.cloud.documentai.v1beta2.Document; import com.google.cloud.documentai.v1beta2.OperationMetadata; import com.google.cloud.documentai.v1beta2.ProcessDocumentRequest; +import com.google.cloud.location.GetLocationRequest; +import com.google.cloud.location.ListLocationsRequest; +import com.google.cloud.location.ListLocationsResponse; +import com.google.cloud.location.Location; import com.google.longrunning.Operation; import com.google.longrunning.stub.GrpcOperationsStub; import io.grpc.MethodDescriptor; @@ -69,12 +75,35 @@ public class GrpcDocumentUnderstandingServiceStub extends DocumentUnderstandingS .setResponseMarshaller(ProtoUtils.marshaller(Document.getDefaultInstance())) .build(); + private static final MethodDescriptor + listLocationsMethodDescriptor = + MethodDescriptor.newBuilder() + .setType(MethodDescriptor.MethodType.UNARY) + .setFullMethodName("google.cloud.location.Locations/ListLocations") + .setRequestMarshaller( + ProtoUtils.marshaller(ListLocationsRequest.getDefaultInstance())) + .setResponseMarshaller( + ProtoUtils.marshaller(ListLocationsResponse.getDefaultInstance())) + .build(); + + private static final MethodDescriptor getLocationMethodDescriptor = + MethodDescriptor.newBuilder() + .setType(MethodDescriptor.MethodType.UNARY) + .setFullMethodName("google.cloud.location.Locations/GetLocation") + .setRequestMarshaller(ProtoUtils.marshaller(GetLocationRequest.getDefaultInstance())) + .setResponseMarshaller(ProtoUtils.marshaller(Location.getDefaultInstance())) + .build(); + private final UnaryCallable batchProcessDocumentsCallable; private final OperationCallable< BatchProcessDocumentsRequest, BatchProcessDocumentsResponse, OperationMetadata> batchProcessDocumentsOperationCallable; private final UnaryCallable processDocumentCallable; + private final UnaryCallable listLocationsCallable; + private final UnaryCallable + listLocationsPagedCallable; + private final UnaryCallable getLocationCallable; private final BackgroundResource backgroundResources; private final GrpcOperationsStub operationsStub; @@ -144,6 +173,26 @@ protected GrpcDocumentUnderstandingServiceStub( return builder.build(); }) .build(); + GrpcCallSettings listLocationsTransportSettings = + GrpcCallSettings.newBuilder() + .setMethodDescriptor(listLocationsMethodDescriptor) + .setParamsExtractor( + request -> { + RequestParamsBuilder builder = RequestParamsBuilder.create(); + builder.add("name", String.valueOf(request.getName())); + return builder.build(); + }) + .build(); + GrpcCallSettings getLocationTransportSettings = + GrpcCallSettings.newBuilder() + .setMethodDescriptor(getLocationMethodDescriptor) + .setParamsExtractor( + request -> { + RequestParamsBuilder builder = RequestParamsBuilder.create(); + builder.add("name", String.valueOf(request.getName())); + return builder.build(); + }) + .build(); this.batchProcessDocumentsCallable = callableFactory.createUnaryCallable( @@ -159,6 +208,15 @@ protected GrpcDocumentUnderstandingServiceStub( this.processDocumentCallable = callableFactory.createUnaryCallable( processDocumentTransportSettings, settings.processDocumentSettings(), clientContext); + this.listLocationsCallable = + callableFactory.createUnaryCallable( + listLocationsTransportSettings, settings.listLocationsSettings(), clientContext); + this.listLocationsPagedCallable = + callableFactory.createPagedCallable( + listLocationsTransportSettings, settings.listLocationsSettings(), clientContext); + this.getLocationCallable = + callableFactory.createUnaryCallable( + getLocationTransportSettings, settings.getLocationSettings(), clientContext); this.backgroundResources = new BackgroundResourceAggregation(clientContext.getBackgroundResources()); @@ -185,6 +243,22 @@ public UnaryCallable processDocumentCallable() return processDocumentCallable; } + @Override + public UnaryCallable listLocationsCallable() { + return listLocationsCallable; + } + + @Override + public UnaryCallable + listLocationsPagedCallable() { + return listLocationsPagedCallable; + } + + @Override + public UnaryCallable getLocationCallable() { + return getLocationCallable; + } + @Override public final void close() { try { diff --git a/java-document-ai/google-cloud-document-ai/src/main/java/com/google/cloud/documentai/v1beta3/DocumentProcessorServiceClient.java b/java-document-ai/google-cloud-document-ai/src/main/java/com/google/cloud/documentai/v1beta3/DocumentProcessorServiceClient.java index 1e43f32f072b..08f306996cd2 100644 --- a/java-document-ai/google-cloud-document-ai/src/main/java/com/google/cloud/documentai/v1beta3/DocumentProcessorServiceClient.java +++ b/java-document-ai/google-cloud-document-ai/src/main/java/com/google/cloud/documentai/v1beta3/DocumentProcessorServiceClient.java @@ -267,7 +267,7 @@ public final ProcessResponse processDocument(ResourceName name) { * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library * try (DocumentProcessorServiceClient documentProcessorServiceClient = * DocumentProcessorServiceClient.create()) { - * String name = DatasetSchemaName.of("[PROJECT]", "[LOCATION]", "[PROCESSOR]").toString(); + * String name = DatasetName.of("[PROJECT]", "[LOCATION]", "[PROCESSOR]").toString(); * ProcessResponse response = documentProcessorServiceClient.processDocument(name); * } * } @@ -403,7 +403,7 @@ public final UnaryCallable processDocumentCalla * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library * try (DocumentProcessorServiceClient documentProcessorServiceClient = * DocumentProcessorServiceClient.create()) { - * String name = DatasetSchemaName.of("[PROJECT]", "[LOCATION]", "[PROCESSOR]").toString(); + * String name = DatasetName.of("[PROJECT]", "[LOCATION]", "[PROCESSOR]").toString(); * BatchProcessResponse response = * documentProcessorServiceClient.batchProcessDocumentsAsync(name).get(); * } diff --git a/java-document-ai/google-cloud-document-ai/src/main/java/com/google/cloud/documentai/v1beta3/DocumentServiceClient.java b/java-document-ai/google-cloud-document-ai/src/main/java/com/google/cloud/documentai/v1beta3/DocumentServiceClient.java index 639e94ee0733..0c242639e79b 100644 --- a/java-document-ai/google-cloud-document-ai/src/main/java/com/google/cloud/documentai/v1beta3/DocumentServiceClient.java +++ b/java-document-ai/google-cloud-document-ai/src/main/java/com/google/cloud/documentai/v1beta3/DocumentServiceClient.java @@ -56,8 +56,8 @@ * // - It may require specifying regional endpoints when creating the service client as shown in * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library * try (DocumentServiceClient documentServiceClient = DocumentServiceClient.create()) { - * DatasetSchemaName name = DatasetSchemaName.of("[PROJECT]", "[LOCATION]", "[PROCESSOR]"); - * DatasetSchema response = documentServiceClient.getDatasetSchema(name); + * DatasetName dataset = DatasetName.of("[PROJECT]", "[LOCATION]", "[PROCESSOR]"); + * GetDocumentResponse response = documentServiceClient.getDocument(dataset); * } * } * @@ -331,6 +331,400 @@ public final UnaryCallable updateDatasetCallabl return stub.updateDatasetCallable(); } + // AUTO-GENERATED DOCUMENTATION AND METHOD. + /** + * Import documents into a dataset. + * + *

Sample code: + * + * 

{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (DocumentServiceClient documentServiceClient = DocumentServiceClient.create()) {
+   *   DatasetName dataset = DatasetName.of("[PROJECT]", "[LOCATION]", "[PROCESSOR]");
+   *   ImportDocumentsResponse response = documentServiceClient.importDocumentsAsync(dataset).get();
+   * }
+   * }
+ * + * @param dataset Required. The dataset resource name. Format: + * projects/{project}/locations/{location}/processors/{processor}/dataset + * @throws com.google.api.gax.rpc.ApiException if the remote call fails + */ + public final OperationFuture + importDocumentsAsync(DatasetName dataset) { + ImportDocumentsRequest request = + ImportDocumentsRequest.newBuilder() + .setDataset(dataset == null ? null : dataset.toString()) + .build(); + return importDocumentsAsync(request); + } + + // AUTO-GENERATED DOCUMENTATION AND METHOD. + /** + * Import documents into a dataset. + * + *

Sample code: + * + * 

{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (DocumentServiceClient documentServiceClient = DocumentServiceClient.create()) {
+   *   String dataset = DatasetName.of("[PROJECT]", "[LOCATION]", "[PROCESSOR]").toString();
+   *   ImportDocumentsResponse response = documentServiceClient.importDocumentsAsync(dataset).get();
+   * }
+   * }
+ * + * @param dataset Required. The dataset resource name. Format: + * projects/{project}/locations/{location}/processors/{processor}/dataset + * @throws com.google.api.gax.rpc.ApiException if the remote call fails + */ + public final OperationFuture + importDocumentsAsync(String dataset) { + ImportDocumentsRequest request = + ImportDocumentsRequest.newBuilder().setDataset(dataset).build(); + return importDocumentsAsync(request); + } + + // AUTO-GENERATED DOCUMENTATION AND METHOD. + /** + * Import documents into a dataset. + * + *

Sample code: + * + * 

{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (DocumentServiceClient documentServiceClient = DocumentServiceClient.create()) {
+   *   ImportDocumentsRequest request =
+   *       ImportDocumentsRequest.newBuilder()
+   *           .setDataset(DatasetName.of("[PROJECT]", "[LOCATION]", "[PROCESSOR]").toString())
+   *           .addAllBatchDocumentsImportConfigs(
+   *               new ArrayList())
+   *           .build();
+   *   ImportDocumentsResponse response = documentServiceClient.importDocumentsAsync(request).get();
+   * }
+   * }
+ * + * @param request The request object containing all of the parameters for the API call. + * @throws com.google.api.gax.rpc.ApiException if the remote call fails + */ + public final OperationFuture + importDocumentsAsync(ImportDocumentsRequest request) { + return importDocumentsOperationCallable().futureCall(request); + } + + // AUTO-GENERATED DOCUMENTATION AND METHOD. + /** + * Import documents into a dataset. + * + *

Sample code: + * + * 

{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (DocumentServiceClient documentServiceClient = DocumentServiceClient.create()) {
+   *   ImportDocumentsRequest request =
+   *       ImportDocumentsRequest.newBuilder()
+   *           .setDataset(DatasetName.of("[PROJECT]", "[LOCATION]", "[PROCESSOR]").toString())
+   *           .addAllBatchDocumentsImportConfigs(
+   *               new ArrayList())
+   *           .build();
+   *   OperationFuture future =
+   *       documentServiceClient.importDocumentsOperationCallable().futureCall(request);
+   *   // Do something.
+   *   ImportDocumentsResponse response = future.get();
+   * }
+   * }
+ */ + public final OperationCallable< + ImportDocumentsRequest, ImportDocumentsResponse, ImportDocumentsMetadata> + importDocumentsOperationCallable() { + return stub.importDocumentsOperationCallable(); + } + + // AUTO-GENERATED DOCUMENTATION AND METHOD. + /** + * Import documents into a dataset. + * + *

Sample code: + * + * 

{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (DocumentServiceClient documentServiceClient = DocumentServiceClient.create()) {
+   *   ImportDocumentsRequest request =
+   *       ImportDocumentsRequest.newBuilder()
+   *           .setDataset(DatasetName.of("[PROJECT]", "[LOCATION]", "[PROCESSOR]").toString())
+   *           .addAllBatchDocumentsImportConfigs(
+   *               new ArrayList())
+   *           .build();
+   *   ApiFuture future =
+   *       documentServiceClient.importDocumentsCallable().futureCall(request);
+   *   // Do something.
+   *   Operation response = future.get();
+   * }
+   * }
+ */ + public final UnaryCallable importDocumentsCallable() { + return stub.importDocumentsCallable(); + } + + // AUTO-GENERATED DOCUMENTATION AND METHOD. + /** + * Returns relevant fields present in the requested document. + * + *

Sample code: + * + * 

{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (DocumentServiceClient documentServiceClient = DocumentServiceClient.create()) {
+   *   DatasetName dataset = DatasetName.of("[PROJECT]", "[LOCATION]", "[PROCESSOR]");
+   *   GetDocumentResponse response = documentServiceClient.getDocument(dataset);
+   * }
+   * }
+ * + * @param dataset Required. The resource name of the dataset that the document belongs to . + * Format: projects/{project}/locations/{location}/processors/{processor}/dataset + * @throws com.google.api.gax.rpc.ApiException if the remote call fails + */ + public final GetDocumentResponse getDocument(DatasetName dataset) { + GetDocumentRequest request = + GetDocumentRequest.newBuilder() + .setDataset(dataset == null ? null : dataset.toString()) + .build(); + return getDocument(request); + } + + // AUTO-GENERATED DOCUMENTATION AND METHOD. + /** + * Returns relevant fields present in the requested document. + * + *

Sample code: + * + * 

{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (DocumentServiceClient documentServiceClient = DocumentServiceClient.create()) {
+   *   String dataset = DatasetName.of("[PROJECT]", "[LOCATION]", "[PROCESSOR]").toString();
+   *   GetDocumentResponse response = documentServiceClient.getDocument(dataset);
+   * }
+   * }
+ * + * @param dataset Required. The resource name of the dataset that the document belongs to . + * Format: projects/{project}/locations/{location}/processors/{processor}/dataset + * @throws com.google.api.gax.rpc.ApiException if the remote call fails + */ + public final GetDocumentResponse getDocument(String dataset) { + GetDocumentRequest request = GetDocumentRequest.newBuilder().setDataset(dataset).build(); + return getDocument(request); + } + + // AUTO-GENERATED DOCUMENTATION AND METHOD. + /** + * Returns relevant fields present in the requested document. + * + *

Sample code: + * + * 

{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (DocumentServiceClient documentServiceClient = DocumentServiceClient.create()) {
+   *   GetDocumentRequest request =
+   *       GetDocumentRequest.newBuilder()
+   *           .setDataset(DatasetName.of("[PROJECT]", "[LOCATION]", "[PROCESSOR]").toString())
+   *           .setDocumentId(DocumentId.newBuilder().build())
+   *           .setReadMask(FieldMask.newBuilder().build())
+   *           .setPageRange(DocumentPageRange.newBuilder().build())
+   *           .build();
+   *   GetDocumentResponse response = documentServiceClient.getDocument(request);
+   * }
+   * }
+ * + * @param request The request object containing all of the parameters for the API call. + * @throws com.google.api.gax.rpc.ApiException if the remote call fails + */ + public final GetDocumentResponse getDocument(GetDocumentRequest request) { + return getDocumentCallable().call(request); + } + + // AUTO-GENERATED DOCUMENTATION AND METHOD. + /** + * Returns relevant fields present in the requested document. + * + *

Sample code: + * + * 

{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (DocumentServiceClient documentServiceClient = DocumentServiceClient.create()) {
+   *   GetDocumentRequest request =
+   *       GetDocumentRequest.newBuilder()
+   *           .setDataset(DatasetName.of("[PROJECT]", "[LOCATION]", "[PROCESSOR]").toString())
+   *           .setDocumentId(DocumentId.newBuilder().build())
+   *           .setReadMask(FieldMask.newBuilder().build())
+   *           .setPageRange(DocumentPageRange.newBuilder().build())
+   *           .build();
+   *   ApiFuture future =
+   *       documentServiceClient.getDocumentCallable().futureCall(request);
+   *   // Do something.
+   *   GetDocumentResponse response = future.get();
+   * }
+   * }
+ */ + public final UnaryCallable getDocumentCallable() { + return stub.getDocumentCallable(); + } + + // AUTO-GENERATED DOCUMENTATION AND METHOD. + /** + * Deletes a set of documents. + * + *

Sample code: + * + * 

{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (DocumentServiceClient documentServiceClient = DocumentServiceClient.create()) {
+   *   String dataset = "dataset1443214456";
+   *   BatchDeleteDocumentsResponse response =
+   *       documentServiceClient.batchDeleteDocumentsAsync(dataset).get();
+   * }
+   * }
+ * + * @param dataset Required. The dataset resource name. Format: + * projects/{project}/locations/{location}/processors/{processor}/dataset + * @throws com.google.api.gax.rpc.ApiException if the remote call fails + */ + public final OperationFuture + batchDeleteDocumentsAsync(String dataset) { + BatchDeleteDocumentsRequest request = + BatchDeleteDocumentsRequest.newBuilder().setDataset(dataset).build(); + return batchDeleteDocumentsAsync(request); + } + + // AUTO-GENERATED DOCUMENTATION AND METHOD. + /** + * Deletes a set of documents. + * + *

Sample code: + * + * 

{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (DocumentServiceClient documentServiceClient = DocumentServiceClient.create()) {
+   *   BatchDeleteDocumentsRequest request =
+   *       BatchDeleteDocumentsRequest.newBuilder()
+   *           .setDataset("dataset1443214456")
+   *           .setDatasetDocuments(BatchDatasetDocuments.newBuilder().build())
+   *           .build();
+   *   BatchDeleteDocumentsResponse response =
+   *       documentServiceClient.batchDeleteDocumentsAsync(request).get();
+   * }
+   * }
+ * + * @param request The request object containing all of the parameters for the API call. + * @throws com.google.api.gax.rpc.ApiException if the remote call fails + */ + public final OperationFuture + batchDeleteDocumentsAsync(BatchDeleteDocumentsRequest request) { + return batchDeleteDocumentsOperationCallable().futureCall(request); + } + + // AUTO-GENERATED DOCUMENTATION AND METHOD. + /** + * Deletes a set of documents. + * + *

Sample code: + * + * 

{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (DocumentServiceClient documentServiceClient = DocumentServiceClient.create()) {
+   *   BatchDeleteDocumentsRequest request =
+   *       BatchDeleteDocumentsRequest.newBuilder()
+   *           .setDataset("dataset1443214456")
+   *           .setDatasetDocuments(BatchDatasetDocuments.newBuilder().build())
+   *           .build();
+   *   OperationFuture future =
+   *       documentServiceClient.batchDeleteDocumentsOperationCallable().futureCall(request);
+   *   // Do something.
+   *   BatchDeleteDocumentsResponse response = future.get();
+   * }
+   * }
+ */ + public final OperationCallable< + BatchDeleteDocumentsRequest, BatchDeleteDocumentsResponse, BatchDeleteDocumentsMetadata> + batchDeleteDocumentsOperationCallable() { + return stub.batchDeleteDocumentsOperationCallable(); + } + + // AUTO-GENERATED DOCUMENTATION AND METHOD. + /** + * Deletes a set of documents. + * + *

Sample code: + * + * 

{@code
+   * // This snippet has been automatically generated and should be regarded as a code template only.
+   * // It will require modifications to work:
+   * // - It may require correct/in-range values for request initialization.
+   * // - It may require specifying regional endpoints when creating the service client as shown in
+   * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+   * try (DocumentServiceClient documentServiceClient = DocumentServiceClient.create()) {
+   *   BatchDeleteDocumentsRequest request =
+   *       BatchDeleteDocumentsRequest.newBuilder()
+   *           .setDataset("dataset1443214456")
+   *           .setDatasetDocuments(BatchDatasetDocuments.newBuilder().build())
+   *           .build();
+   *   ApiFuture future =
+   *       documentServiceClient.batchDeleteDocumentsCallable().futureCall(request);
+   *   // Do something.
+   *   Operation response = future.get();
+   * }
+   * }
+ */ + public final UnaryCallable + batchDeleteDocumentsCallable() { + return stub.batchDeleteDocumentsCallable(); + } + // AUTO-GENERATED DOCUMENTATION AND METHOD. /** * Gets the `DatasetSchema` of a `Dataset`. diff --git a/java-document-ai/google-cloud-document-ai/src/main/java/com/google/cloud/documentai/v1beta3/DocumentServiceSettings.java b/java-document-ai/google-cloud-document-ai/src/main/java/com/google/cloud/documentai/v1beta3/DocumentServiceSettings.java index fcbd2828a62d..14fbc4552b22 100644 --- a/java-document-ai/google-cloud-document-ai/src/main/java/com/google/cloud/documentai/v1beta3/DocumentServiceSettings.java +++ b/java-document-ai/google-cloud-document-ai/src/main/java/com/google/cloud/documentai/v1beta3/DocumentServiceSettings.java @@ -56,7 +56,7 @@ *

The builder of this class is recursive, so contained classes are themselves builders. When * build() is called, the tree of builders is called to create the complete settings object. * - *

For example, to set the total timeout of getDatasetSchema to 30 seconds: + *

For example, to set the total timeout of getDocument to 30 seconds: * * 

{@code
  * // This snippet has been automatically generated and should be regarded as a code template only.
@@ -67,10 +67,10 @@
  * DocumentServiceSettings.Builder documentServiceSettingsBuilder =
  *     DocumentServiceSettings.newBuilder();
  * documentServiceSettingsBuilder
- *     .getDatasetSchemaSettings()
+ *     .getDocumentSettings()
  *     .setRetrySettings(
  *         documentServiceSettingsBuilder
- *             .getDatasetSchemaSettings()
+ *             .getDocumentSettings()
  *             .getRetrySettings()
  *             .toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
@@ -93,6 +93,36 @@ public UnaryCallSettings updateDatasetSettings(
     return ((DocumentServiceStubSettings) getStubSettings()).updateDatasetOperationSettings();
   }
 
+  /** Returns the object with the settings used for calls to importDocuments. */
+  public UnaryCallSettings importDocumentsSettings() {
+    return ((DocumentServiceStubSettings) getStubSettings()).importDocumentsSettings();
+  }
+
+  /** Returns the object with the settings used for calls to importDocuments. */
+  public OperationCallSettings<
+          ImportDocumentsRequest, ImportDocumentsResponse, ImportDocumentsMetadata>
+      importDocumentsOperationSettings() {
+    return ((DocumentServiceStubSettings) getStubSettings()).importDocumentsOperationSettings();
+  }
+
+  /** Returns the object with the settings used for calls to getDocument. */
+  public UnaryCallSettings getDocumentSettings() {
+    return ((DocumentServiceStubSettings) getStubSettings()).getDocumentSettings();
+  }
+
+  /** Returns the object with the settings used for calls to batchDeleteDocuments. */
+  public UnaryCallSettings batchDeleteDocumentsSettings() {
+    return ((DocumentServiceStubSettings) getStubSettings()).batchDeleteDocumentsSettings();
+  }
+
+  /** Returns the object with the settings used for calls to batchDeleteDocuments. */
+  public OperationCallSettings<
+          BatchDeleteDocumentsRequest, BatchDeleteDocumentsResponse, BatchDeleteDocumentsMetadata>
+      batchDeleteDocumentsOperationSettings() {
+    return ((DocumentServiceStubSettings) getStubSettings())
+        .batchDeleteDocumentsOperationSettings();
+  }
+
   /** Returns the object with the settings used for calls to getDatasetSchema. */
   public UnaryCallSettings getDatasetSchemaSettings() {
     return ((DocumentServiceStubSettings) getStubSettings()).getDatasetSchemaSettings();
@@ -242,6 +272,37 @@ public UnaryCallSettings.Builder updateDatasetS
       return getStubSettingsBuilder().updateDatasetOperationSettings();
     }
 
+    /** Returns the builder for the settings used for calls to importDocuments. */
+    public UnaryCallSettings.Builder importDocumentsSettings() {
+      return getStubSettingsBuilder().importDocumentsSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to importDocuments. */
+    public OperationCallSettings.Builder<
+            ImportDocumentsRequest, ImportDocumentsResponse, ImportDocumentsMetadata>
+        importDocumentsOperationSettings() {
+      return getStubSettingsBuilder().importDocumentsOperationSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to getDocument. */
+    public UnaryCallSettings.Builder
+        getDocumentSettings() {
+      return getStubSettingsBuilder().getDocumentSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to batchDeleteDocuments. */
+    public UnaryCallSettings.Builder
+        batchDeleteDocumentsSettings() {
+      return getStubSettingsBuilder().batchDeleteDocumentsSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to batchDeleteDocuments. */
+    public OperationCallSettings.Builder<
+            BatchDeleteDocumentsRequest, BatchDeleteDocumentsResponse, BatchDeleteDocumentsMetadata>
+        batchDeleteDocumentsOperationSettings() {
+      return getStubSettingsBuilder().batchDeleteDocumentsOperationSettings();
+    }
+
     /** Returns the builder for the settings used for calls to getDatasetSchema. */
     public UnaryCallSettings.Builder
         getDatasetSchemaSettings() {
diff --git a/java-document-ai/google-cloud-document-ai/src/main/java/com/google/cloud/documentai/v1beta3/gapic_metadata.json b/java-document-ai/google-cloud-document-ai/src/main/java/com/google/cloud/documentai/v1beta3/gapic_metadata.json
index f3dad60bf858..2902801e5736 100644
--- a/java-document-ai/google-cloud-document-ai/src/main/java/com/google/cloud/documentai/v1beta3/gapic_metadata.json
+++ b/java-document-ai/google-cloud-document-ai/src/main/java/com/google/cloud/documentai/v1beta3/gapic_metadata.json
@@ -94,12 +94,21 @@
         "grpc": {
           "libraryClient": "DocumentServiceClient",
           "rpcs": {
+            "BatchDeleteDocuments": {
+              "methods": ["batchDeleteDocumentsAsync", "batchDeleteDocumentsAsync", "batchDeleteDocumentsOperationCallable", "batchDeleteDocumentsCallable"]
+            },
             "GetDatasetSchema": {
               "methods": ["getDatasetSchema", "getDatasetSchema", "getDatasetSchema", "getDatasetSchemaCallable"]
             },
+            "GetDocument": {
+              "methods": ["getDocument", "getDocument", "getDocument", "getDocumentCallable"]
+            },
             "GetLocation": {
               "methods": ["getLocation", "getLocationCallable"]
             },
+            "ImportDocuments": {
+              "methods": ["importDocumentsAsync", "importDocumentsAsync", "importDocumentsAsync", "importDocumentsOperationCallable", "importDocumentsCallable"]
+            },
             "ListLocations": {
               "methods": ["listLocations", "listLocationsPagedCallable", "listLocationsCallable"]
             },
diff --git a/java-document-ai/google-cloud-document-ai/src/main/java/com/google/cloud/documentai/v1beta3/package-info.java b/java-document-ai/google-cloud-document-ai/src/main/java/com/google/cloud/documentai/v1beta3/package-info.java
index d40b13c216a0..8d619e5f36df 100644
--- a/java-document-ai/google-cloud-document-ai/src/main/java/com/google/cloud/documentai/v1beta3/package-info.java
+++ b/java-document-ai/google-cloud-document-ai/src/main/java/com/google/cloud/documentai/v1beta3/package-info.java
@@ -54,8 +54,8 @@
  * // - It may require specifying regional endpoints when creating the service client as shown in
  * // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
  * try (DocumentServiceClient documentServiceClient = DocumentServiceClient.create()) {
- *   DatasetSchemaName name = DatasetSchemaName.of("[PROJECT]", "[LOCATION]", "[PROCESSOR]");
- *   DatasetSchema response = documentServiceClient.getDatasetSchema(name);
+ *   DatasetName dataset = DatasetName.of("[PROJECT]", "[LOCATION]", "[PROCESSOR]");
+ *   GetDocumentResponse response = documentServiceClient.getDocument(dataset);
  * }
  * }
*/ diff --git a/java-document-ai/google-cloud-document-ai/src/main/java/com/google/cloud/documentai/v1beta3/stub/DocumentServiceStub.java b/java-document-ai/google-cloud-document-ai/src/main/java/com/google/cloud/documentai/v1beta3/stub/DocumentServiceStub.java index 2d1755e20c7d..6001caa1e81a 100644 --- a/java-document-ai/google-cloud-document-ai/src/main/java/com/google/cloud/documentai/v1beta3/stub/DocumentServiceStub.java +++ b/java-document-ai/google-cloud-document-ai/src/main/java/com/google/cloud/documentai/v1beta3/stub/DocumentServiceStub.java @@ -22,9 +22,17 @@ import com.google.api.gax.core.BackgroundResource; import com.google.api.gax.rpc.OperationCallable; import com.google.api.gax.rpc.UnaryCallable; +import com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata; +import com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsRequest; +import com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsResponse; import com.google.cloud.documentai.v1beta3.Dataset; import com.google.cloud.documentai.v1beta3.DatasetSchema; import com.google.cloud.documentai.v1beta3.GetDatasetSchemaRequest; +import com.google.cloud.documentai.v1beta3.GetDocumentRequest; +import com.google.cloud.documentai.v1beta3.GetDocumentResponse; +import com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata; +import com.google.cloud.documentai.v1beta3.ImportDocumentsRequest; +import com.google.cloud.documentai.v1beta3.ImportDocumentsResponse; import com.google.cloud.documentai.v1beta3.UpdateDatasetOperationMetadata; import com.google.cloud.documentai.v1beta3.UpdateDatasetRequest; import com.google.cloud.documentai.v1beta3.UpdateDatasetSchemaRequest; @@ -63,6 +71,30 @@ public UnaryCallable updateDatasetCallable() { throw new UnsupportedOperationException("Not implemented: updateDatasetCallable()"); } + public OperationCallable + importDocumentsOperationCallable() { + throw new UnsupportedOperationException("Not implemented: importDocumentsOperationCallable()"); + } + + public UnaryCallable importDocumentsCallable() { + throw new UnsupportedOperationException("Not implemented: importDocumentsCallable()"); + } + + public UnaryCallable getDocumentCallable() { + throw new UnsupportedOperationException("Not implemented: getDocumentCallable()"); + } + + public OperationCallable< + BatchDeleteDocumentsRequest, BatchDeleteDocumentsResponse, BatchDeleteDocumentsMetadata> + batchDeleteDocumentsOperationCallable() { + throw new UnsupportedOperationException( + "Not implemented: batchDeleteDocumentsOperationCallable()"); + } + + public UnaryCallable batchDeleteDocumentsCallable() { + throw new UnsupportedOperationException("Not implemented: batchDeleteDocumentsCallable()"); + } + public UnaryCallable getDatasetSchemaCallable() { throw new UnsupportedOperationException("Not implemented: getDatasetSchemaCallable()"); } diff --git a/java-document-ai/google-cloud-document-ai/src/main/java/com/google/cloud/documentai/v1beta3/stub/DocumentServiceStubSettings.java b/java-document-ai/google-cloud-document-ai/src/main/java/com/google/cloud/documentai/v1beta3/stub/DocumentServiceStubSettings.java index 10f3ef710be1..2b994b189b0b 100644 --- a/java-document-ai/google-cloud-document-ai/src/main/java/com/google/cloud/documentai/v1beta3/stub/DocumentServiceStubSettings.java +++ b/java-document-ai/google-cloud-document-ai/src/main/java/com/google/cloud/documentai/v1beta3/stub/DocumentServiceStubSettings.java @@ -47,9 +47,17 @@ import com.google.api.gax.rpc.TransportChannelProvider; import com.google.api.gax.rpc.UnaryCallSettings; import com.google.api.gax.rpc.UnaryCallable; +import com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata; +import com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsRequest; +import com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsResponse; import com.google.cloud.documentai.v1beta3.Dataset; import com.google.cloud.documentai.v1beta3.DatasetSchema; import com.google.cloud.documentai.v1beta3.GetDatasetSchemaRequest; +import com.google.cloud.documentai.v1beta3.GetDocumentRequest; +import com.google.cloud.documentai.v1beta3.GetDocumentResponse; +import com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata; +import com.google.cloud.documentai.v1beta3.ImportDocumentsRequest; +import com.google.cloud.documentai.v1beta3.ImportDocumentsResponse; import com.google.cloud.documentai.v1beta3.UpdateDatasetOperationMetadata; import com.google.cloud.documentai.v1beta3.UpdateDatasetRequest; import com.google.cloud.documentai.v1beta3.UpdateDatasetSchemaRequest; @@ -82,7 +90,7 @@ *

The builder of this class is recursive, so contained classes are themselves builders. When * build() is called, the tree of builders is called to create the complete settings object. * - *

For example, to set the total timeout of getDatasetSchema to 30 seconds: + *

For example, to set the total timeout of getDocument to 30 seconds: * * 

{@code
  * // This snippet has been automatically generated and should be regarded as a code template only.
@@ -93,10 +101,10 @@
  * DocumentServiceStubSettings.Builder documentServiceSettingsBuilder =
  *     DocumentServiceStubSettings.newBuilder();
  * documentServiceSettingsBuilder
- *     .getDatasetSchemaSettings()
+ *     .getDocumentSettings()
  *     .setRetrySettings(
  *         documentServiceSettingsBuilder
- *             .getDatasetSchemaSettings()
+ *             .getDocumentSettings()
  *             .getRetrySettings()
  *             .toBuilder()
  *             .setTotalTimeout(Duration.ofSeconds(30))
@@ -114,6 +122,16 @@ public class DocumentServiceStubSettings extends StubSettings updateDatasetSettings;
   private final OperationCallSettings
       updateDatasetOperationSettings;
+  private final UnaryCallSettings importDocumentsSettings;
+  private final OperationCallSettings<
+          ImportDocumentsRequest, ImportDocumentsResponse, ImportDocumentsMetadata>
+      importDocumentsOperationSettings;
+  private final UnaryCallSettings getDocumentSettings;
+  private final UnaryCallSettings
+      batchDeleteDocumentsSettings;
+  private final OperationCallSettings<
+          BatchDeleteDocumentsRequest, BatchDeleteDocumentsResponse, BatchDeleteDocumentsMetadata>
+      batchDeleteDocumentsOperationSettings;
   private final UnaryCallSettings getDatasetSchemaSettings;
   private final UnaryCallSettings
       updateDatasetSchemaSettings;
@@ -186,6 +204,35 @@ public UnaryCallSettings updateDatasetSettings(
     return updateDatasetOperationSettings;
   }
 
+  /** Returns the object with the settings used for calls to importDocuments. */
+  public UnaryCallSettings importDocumentsSettings() {
+    return importDocumentsSettings;
+  }
+
+  /** Returns the object with the settings used for calls to importDocuments. */
+  public OperationCallSettings<
+          ImportDocumentsRequest, ImportDocumentsResponse, ImportDocumentsMetadata>
+      importDocumentsOperationSettings() {
+    return importDocumentsOperationSettings;
+  }
+
+  /** Returns the object with the settings used for calls to getDocument. */
+  public UnaryCallSettings getDocumentSettings() {
+    return getDocumentSettings;
+  }
+
+  /** Returns the object with the settings used for calls to batchDeleteDocuments. */
+  public UnaryCallSettings batchDeleteDocumentsSettings() {
+    return batchDeleteDocumentsSettings;
+  }
+
+  /** Returns the object with the settings used for calls to batchDeleteDocuments. */
+  public OperationCallSettings<
+          BatchDeleteDocumentsRequest, BatchDeleteDocumentsResponse, BatchDeleteDocumentsMetadata>
+      batchDeleteDocumentsOperationSettings() {
+    return batchDeleteDocumentsOperationSettings;
+  }
+
   /** Returns the object with the settings used for calls to getDatasetSchema. */
   public UnaryCallSettings getDatasetSchemaSettings() {
     return getDatasetSchemaSettings;
@@ -316,6 +363,12 @@ protected DocumentServiceStubSettings(Builder settingsBuilder) throws IOExceptio
 
     updateDatasetSettings = settingsBuilder.updateDatasetSettings().build();
     updateDatasetOperationSettings = settingsBuilder.updateDatasetOperationSettings().build();
+    importDocumentsSettings = settingsBuilder.importDocumentsSettings().build();
+    importDocumentsOperationSettings = settingsBuilder.importDocumentsOperationSettings().build();
+    getDocumentSettings = settingsBuilder.getDocumentSettings().build();
+    batchDeleteDocumentsSettings = settingsBuilder.batchDeleteDocumentsSettings().build();
+    batchDeleteDocumentsOperationSettings =
+        settingsBuilder.batchDeleteDocumentsOperationSettings().build();
     getDatasetSchemaSettings = settingsBuilder.getDatasetSchemaSettings().build();
     updateDatasetSchemaSettings = settingsBuilder.updateDatasetSchemaSettings().build();
     listLocationsSettings = settingsBuilder.listLocationsSettings().build();
@@ -329,6 +382,18 @@ public static class Builder extends StubSettings.Builder
         updateDatasetOperationSettings;
+    private final UnaryCallSettings.Builder
+        importDocumentsSettings;
+    private final OperationCallSettings.Builder<
+            ImportDocumentsRequest, ImportDocumentsResponse, ImportDocumentsMetadata>
+        importDocumentsOperationSettings;
+    private final UnaryCallSettings.Builder
+        getDocumentSettings;
+    private final UnaryCallSettings.Builder
+        batchDeleteDocumentsSettings;
+    private final OperationCallSettings.Builder<
+            BatchDeleteDocumentsRequest, BatchDeleteDocumentsResponse, BatchDeleteDocumentsMetadata>
+        batchDeleteDocumentsOperationSettings;
     private final UnaryCallSettings.Builder
         getDatasetSchemaSettings;
     private final UnaryCallSettings.Builder
@@ -366,6 +431,11 @@ protected Builder(ClientContext clientContext) {
 
       updateDatasetSettings = UnaryCallSettings.newUnaryCallSettingsBuilder();
       updateDatasetOperationSettings = OperationCallSettings.newBuilder();
+      importDocumentsSettings = UnaryCallSettings.newUnaryCallSettingsBuilder();
+      importDocumentsOperationSettings = OperationCallSettings.newBuilder();
+      getDocumentSettings = UnaryCallSettings.newUnaryCallSettingsBuilder();
+      batchDeleteDocumentsSettings = UnaryCallSettings.newUnaryCallSettingsBuilder();
+      batchDeleteDocumentsOperationSettings = OperationCallSettings.newBuilder();
       getDatasetSchemaSettings = UnaryCallSettings.newUnaryCallSettingsBuilder();
       updateDatasetSchemaSettings = UnaryCallSettings.newUnaryCallSettingsBuilder();
       listLocationsSettings = PagedCallSettings.newBuilder(LIST_LOCATIONS_PAGE_STR_FACT);
@@ -374,6 +444,9 @@ protected Builder(ClientContext clientContext) {
       unaryMethodSettingsBuilders =
           ImmutableList.>of(
               updateDatasetSettings,
+              importDocumentsSettings,
+              getDocumentSettings,
+              batchDeleteDocumentsSettings,
               getDatasetSchemaSettings,
               updateDatasetSchemaSettings,
               listLocationsSettings,
@@ -386,6 +459,12 @@ protected Builder(DocumentServiceStubSettings settings) {
 
       updateDatasetSettings = settings.updateDatasetSettings.toBuilder();
       updateDatasetOperationSettings = settings.updateDatasetOperationSettings.toBuilder();
+      importDocumentsSettings = settings.importDocumentsSettings.toBuilder();
+      importDocumentsOperationSettings = settings.importDocumentsOperationSettings.toBuilder();
+      getDocumentSettings = settings.getDocumentSettings.toBuilder();
+      batchDeleteDocumentsSettings = settings.batchDeleteDocumentsSettings.toBuilder();
+      batchDeleteDocumentsOperationSettings =
+          settings.batchDeleteDocumentsOperationSettings.toBuilder();
       getDatasetSchemaSettings = settings.getDatasetSchemaSettings.toBuilder();
       updateDatasetSchemaSettings = settings.updateDatasetSchemaSettings.toBuilder();
       listLocationsSettings = settings.listLocationsSettings.toBuilder();
@@ -394,6 +473,9 @@ protected Builder(DocumentServiceStubSettings settings) {
       unaryMethodSettingsBuilders =
           ImmutableList.>of(
               updateDatasetSettings,
+              importDocumentsSettings,
+              getDocumentSettings,
+              batchDeleteDocumentsSettings,
               getDatasetSchemaSettings,
               updateDatasetSchemaSettings,
               listLocationsSettings,
@@ -432,6 +514,21 @@ private static Builder initDefaults(Builder builder) {
           .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("no_retry_codes"))
           .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("no_retry_params"));
 
+      builder
+          .importDocumentsSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("no_retry_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("no_retry_params"));
+
+      builder
+          .getDocumentSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("no_retry_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("no_retry_params"));
+
+      builder
+          .batchDeleteDocumentsSettings()
+          .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("no_retry_codes"))
+          .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("no_retry_params"));
+
       builder
           .getDatasetSchemaSettings()
           .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("no_retry_codes"))
@@ -477,6 +574,56 @@ private static Builder initDefaults(Builder builder) {
                       .setTotalTimeout(Duration.ofMillis(300000L))
                       .build()));
 
+      builder
+          .importDocumentsOperationSettings()
+          .setInitialCallSettings(
+              UnaryCallSettings
+                  .newUnaryCallSettingsBuilder()
+                  .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("no_retry_codes"))
+                  .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("no_retry_params"))
+                  .build())
+          .setResponseTransformer(
+              ProtoOperationTransformers.ResponseTransformer.create(ImportDocumentsResponse.class))
+          .setMetadataTransformer(
+              ProtoOperationTransformers.MetadataTransformer.create(ImportDocumentsMetadata.class))
+          .setPollingAlgorithm(
+              OperationTimedPollAlgorithm.create(
+                  RetrySettings.newBuilder()
+                      .setInitialRetryDelay(Duration.ofMillis(5000L))
+                      .setRetryDelayMultiplier(1.5)
+                      .setMaxRetryDelay(Duration.ofMillis(45000L))
+                      .setInitialRpcTimeout(Duration.ZERO)
+                      .setRpcTimeoutMultiplier(1.0)
+                      .setMaxRpcTimeout(Duration.ZERO)
+                      .setTotalTimeout(Duration.ofMillis(300000L))
+                      .build()));
+
+      builder
+          .batchDeleteDocumentsOperationSettings()
+          .setInitialCallSettings(
+              UnaryCallSettings
+                  .newUnaryCallSettingsBuilder()
+                  .setRetryableCodes(RETRYABLE_CODE_DEFINITIONS.get("no_retry_codes"))
+                  .setRetrySettings(RETRY_PARAM_DEFINITIONS.get("no_retry_params"))
+                  .build())
+          .setResponseTransformer(
+              ProtoOperationTransformers.ResponseTransformer.create(
+                  BatchDeleteDocumentsResponse.class))
+          .setMetadataTransformer(
+              ProtoOperationTransformers.MetadataTransformer.create(
+                  BatchDeleteDocumentsMetadata.class))
+          .setPollingAlgorithm(
+              OperationTimedPollAlgorithm.create(
+                  RetrySettings.newBuilder()
+                      .setInitialRetryDelay(Duration.ofMillis(5000L))
+                      .setRetryDelayMultiplier(1.5)
+                      .setMaxRetryDelay(Duration.ofMillis(45000L))
+                      .setInitialRpcTimeout(Duration.ZERO)
+                      .setRpcTimeoutMultiplier(1.0)
+                      .setMaxRpcTimeout(Duration.ZERO)
+                      .setTotalTimeout(Duration.ofMillis(300000L))
+                      .build()));
+
       return builder;
     }
 
@@ -509,6 +656,41 @@ public UnaryCallSettings.Builder updateDatasetS
       return updateDatasetOperationSettings;
     }
 
+    /** Returns the builder for the settings used for calls to importDocuments. */
+    public UnaryCallSettings.Builder importDocumentsSettings() {
+      return importDocumentsSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to importDocuments. */
+    @BetaApi(
+        "The surface for use by generated code is not stable yet and may change in the future.")
+    public OperationCallSettings.Builder<
+            ImportDocumentsRequest, ImportDocumentsResponse, ImportDocumentsMetadata>
+        importDocumentsOperationSettings() {
+      return importDocumentsOperationSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to getDocument. */
+    public UnaryCallSettings.Builder
+        getDocumentSettings() {
+      return getDocumentSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to batchDeleteDocuments. */
+    public UnaryCallSettings.Builder
+        batchDeleteDocumentsSettings() {
+      return batchDeleteDocumentsSettings;
+    }
+
+    /** Returns the builder for the settings used for calls to batchDeleteDocuments. */
+    @BetaApi(
+        "The surface for use by generated code is not stable yet and may change in the future.")
+    public OperationCallSettings.Builder<
+            BatchDeleteDocumentsRequest, BatchDeleteDocumentsResponse, BatchDeleteDocumentsMetadata>
+        batchDeleteDocumentsOperationSettings() {
+      return batchDeleteDocumentsOperationSettings;
+    }
+
     /** Returns the builder for the settings used for calls to getDatasetSchema. */
     public UnaryCallSettings.Builder
         getDatasetSchemaSettings() {
diff --git a/java-document-ai/google-cloud-document-ai/src/main/java/com/google/cloud/documentai/v1beta3/stub/GrpcDocumentServiceStub.java b/java-document-ai/google-cloud-document-ai/src/main/java/com/google/cloud/documentai/v1beta3/stub/GrpcDocumentServiceStub.java
index af8922df392b..c48b0e9647eb 100644
--- a/java-document-ai/google-cloud-document-ai/src/main/java/com/google/cloud/documentai/v1beta3/stub/GrpcDocumentServiceStub.java
+++ b/java-document-ai/google-cloud-document-ai/src/main/java/com/google/cloud/documentai/v1beta3/stub/GrpcDocumentServiceStub.java
@@ -27,9 +27,17 @@
 import com.google.api.gax.rpc.OperationCallable;
 import com.google.api.gax.rpc.RequestParamsBuilder;
 import com.google.api.gax.rpc.UnaryCallable;
+import com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata;
+import com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsRequest;
+import com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsResponse;
 import com.google.cloud.documentai.v1beta3.Dataset;
 import com.google.cloud.documentai.v1beta3.DatasetSchema;
 import com.google.cloud.documentai.v1beta3.GetDatasetSchemaRequest;
+import com.google.cloud.documentai.v1beta3.GetDocumentRequest;
+import com.google.cloud.documentai.v1beta3.GetDocumentResponse;
+import com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata;
+import com.google.cloud.documentai.v1beta3.ImportDocumentsRequest;
+import com.google.cloud.documentai.v1beta3.ImportDocumentsResponse;
 import com.google.cloud.documentai.v1beta3.UpdateDatasetOperationMetadata;
 import com.google.cloud.documentai.v1beta3.UpdateDatasetRequest;
 import com.google.cloud.documentai.v1beta3.UpdateDatasetSchemaRequest;
@@ -64,6 +72,37 @@ public class GrpcDocumentServiceStub extends DocumentServiceStub {
               .setResponseMarshaller(ProtoUtils.marshaller(Operation.getDefaultInstance()))
               .build();
 
+  private static final MethodDescriptor
+      importDocumentsMethodDescriptor =
+          MethodDescriptor.newBuilder()
+              .setType(MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName("google.cloud.documentai.v1beta3.DocumentService/ImportDocuments")
+              .setRequestMarshaller(
+                  ProtoUtils.marshaller(ImportDocumentsRequest.getDefaultInstance()))
+              .setResponseMarshaller(ProtoUtils.marshaller(Operation.getDefaultInstance()))
+              .build();
+
+  private static final MethodDescriptor
+      getDocumentMethodDescriptor =
+          MethodDescriptor.newBuilder()
+              .setType(MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName("google.cloud.documentai.v1beta3.DocumentService/GetDocument")
+              .setRequestMarshaller(ProtoUtils.marshaller(GetDocumentRequest.getDefaultInstance()))
+              .setResponseMarshaller(
+                  ProtoUtils.marshaller(GetDocumentResponse.getDefaultInstance()))
+              .build();
+
+  private static final MethodDescriptor
+      batchDeleteDocumentsMethodDescriptor =
+          MethodDescriptor.newBuilder()
+              .setType(MethodDescriptor.MethodType.UNARY)
+              .setFullMethodName(
+                  "google.cloud.documentai.v1beta3.DocumentService/BatchDeleteDocuments")
+              .setRequestMarshaller(
+                  ProtoUtils.marshaller(BatchDeleteDocumentsRequest.getDefaultInstance()))
+              .setResponseMarshaller(ProtoUtils.marshaller(Operation.getDefaultInstance()))
+              .build();
+
   private static final MethodDescriptor
       getDatasetSchemaMethodDescriptor =
           MethodDescriptor.newBuilder()
@@ -107,6 +146,15 @@ public class GrpcDocumentServiceStub extends DocumentServiceStub {
   private final UnaryCallable updateDatasetCallable;
   private final OperationCallable
       updateDatasetOperationCallable;
+  private final UnaryCallable importDocumentsCallable;
+  private final OperationCallable<
+          ImportDocumentsRequest, ImportDocumentsResponse, ImportDocumentsMetadata>
+      importDocumentsOperationCallable;
+  private final UnaryCallable getDocumentCallable;
+  private final UnaryCallable batchDeleteDocumentsCallable;
+  private final OperationCallable<
+          BatchDeleteDocumentsRequest, BatchDeleteDocumentsResponse, BatchDeleteDocumentsMetadata>
+      batchDeleteDocumentsOperationCallable;
   private final UnaryCallable getDatasetSchemaCallable;
   private final UnaryCallable
       updateDatasetSchemaCallable;
@@ -169,6 +217,36 @@ protected GrpcDocumentServiceStub(
                   return builder.build();
                 })
             .build();
+    GrpcCallSettings importDocumentsTransportSettings =
+        GrpcCallSettings.newBuilder()
+            .setMethodDescriptor(importDocumentsMethodDescriptor)
+            .setParamsExtractor(
+                request -> {
+                  RequestParamsBuilder builder = RequestParamsBuilder.create();
+                  builder.add("dataset", String.valueOf(request.getDataset()));
+                  return builder.build();
+                })
+            .build();
+    GrpcCallSettings getDocumentTransportSettings =
+        GrpcCallSettings.newBuilder()
+            .setMethodDescriptor(getDocumentMethodDescriptor)
+            .setParamsExtractor(
+                request -> {
+                  RequestParamsBuilder builder = RequestParamsBuilder.create();
+                  builder.add("dataset", String.valueOf(request.getDataset()));
+                  return builder.build();
+                })
+            .build();
+    GrpcCallSettings batchDeleteDocumentsTransportSettings =
+        GrpcCallSettings.newBuilder()
+            .setMethodDescriptor(batchDeleteDocumentsMethodDescriptor)
+            .setParamsExtractor(
+                request -> {
+                  RequestParamsBuilder builder = RequestParamsBuilder.create();
+                  builder.add("dataset", String.valueOf(request.getDataset()));
+                  return builder.build();
+                })
+            .build();
     GrpcCallSettings getDatasetSchemaTransportSettings =
         GrpcCallSettings.newBuilder()
             .setMethodDescriptor(getDatasetSchemaMethodDescriptor)
@@ -222,6 +300,29 @@ protected GrpcDocumentServiceStub(
             settings.updateDatasetOperationSettings(),
             clientContext,
             operationsStub);
+    this.importDocumentsCallable =
+        callableFactory.createUnaryCallable(
+            importDocumentsTransportSettings, settings.importDocumentsSettings(), clientContext);
+    this.importDocumentsOperationCallable =
+        callableFactory.createOperationCallable(
+            importDocumentsTransportSettings,
+            settings.importDocumentsOperationSettings(),
+            clientContext,
+            operationsStub);
+    this.getDocumentCallable =
+        callableFactory.createUnaryCallable(
+            getDocumentTransportSettings, settings.getDocumentSettings(), clientContext);
+    this.batchDeleteDocumentsCallable =
+        callableFactory.createUnaryCallable(
+            batchDeleteDocumentsTransportSettings,
+            settings.batchDeleteDocumentsSettings(),
+            clientContext);
+    this.batchDeleteDocumentsOperationCallable =
+        callableFactory.createOperationCallable(
+            batchDeleteDocumentsTransportSettings,
+            settings.batchDeleteDocumentsOperationSettings(),
+            clientContext,
+            operationsStub);
     this.getDatasetSchemaCallable =
         callableFactory.createUnaryCallable(
             getDatasetSchemaTransportSettings, settings.getDatasetSchemaSettings(), clientContext);
@@ -259,6 +360,34 @@ public UnaryCallable updateDatasetCallable() {
     return updateDatasetOperationCallable;
   }
 
+  @Override
+  public UnaryCallable importDocumentsCallable() {
+    return importDocumentsCallable;
+  }
+
+  @Override
+  public OperationCallable
+      importDocumentsOperationCallable() {
+    return importDocumentsOperationCallable;
+  }
+
+  @Override
+  public UnaryCallable getDocumentCallable() {
+    return getDocumentCallable;
+  }
+
+  @Override
+  public UnaryCallable batchDeleteDocumentsCallable() {
+    return batchDeleteDocumentsCallable;
+  }
+
+  @Override
+  public OperationCallable<
+          BatchDeleteDocumentsRequest, BatchDeleteDocumentsResponse, BatchDeleteDocumentsMetadata>
+      batchDeleteDocumentsOperationCallable() {
+    return batchDeleteDocumentsOperationCallable;
+  }
+
   @Override
   public UnaryCallable getDatasetSchemaCallable() {
     return getDatasetSchemaCallable;
diff --git a/java-document-ai/google-cloud-document-ai/src/main/java/com/google/cloud/documentai/v1beta3/stub/HttpJsonDocumentServiceStub.java b/java-document-ai/google-cloud-document-ai/src/main/java/com/google/cloud/documentai/v1beta3/stub/HttpJsonDocumentServiceStub.java
index f0ce8f9e63bf..174e0369c123 100644
--- a/java-document-ai/google-cloud-document-ai/src/main/java/com/google/cloud/documentai/v1beta3/stub/HttpJsonDocumentServiceStub.java
+++ b/java-document-ai/google-cloud-document-ai/src/main/java/com/google/cloud/documentai/v1beta3/stub/HttpJsonDocumentServiceStub.java
@@ -35,9 +35,17 @@
 import com.google.api.gax.rpc.OperationCallable;
 import com.google.api.gax.rpc.RequestParamsBuilder;
 import com.google.api.gax.rpc.UnaryCallable;
+import com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata;
+import com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsRequest;
+import com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsResponse;
 import com.google.cloud.documentai.v1beta3.Dataset;
 import com.google.cloud.documentai.v1beta3.DatasetSchema;
 import com.google.cloud.documentai.v1beta3.GetDatasetSchemaRequest;
+import com.google.cloud.documentai.v1beta3.GetDocumentRequest;
+import com.google.cloud.documentai.v1beta3.GetDocumentResponse;
+import com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata;
+import com.google.cloud.documentai.v1beta3.ImportDocumentsRequest;
+import com.google.cloud.documentai.v1beta3.ImportDocumentsResponse;
 import com.google.cloud.documentai.v1beta3.UpdateDatasetOperationMetadata;
 import com.google.cloud.documentai.v1beta3.UpdateDatasetRequest;
 import com.google.cloud.documentai.v1beta3.UpdateDatasetSchemaRequest;
@@ -67,7 +75,11 @@
 public class HttpJsonDocumentServiceStub extends DocumentServiceStub {
   private static final TypeRegistry typeRegistry =
       TypeRegistry.newBuilder()
+          .add(ImportDocumentsMetadata.getDescriptor())
           .add(Dataset.getDescriptor())
+          .add(BatchDeleteDocumentsResponse.getDescriptor())
+          .add(ImportDocumentsResponse.getDescriptor())
+          .add(BatchDeleteDocumentsMetadata.getDescriptor())
           .add(UpdateDatasetOperationMetadata.getDescriptor())
           .build();
 
@@ -113,6 +125,124 @@ public class HttpJsonDocumentServiceStub extends DocumentServiceStub {
                       HttpJsonOperationSnapshot.create(response))
               .build();
 
+  private static final ApiMethodDescriptor
+      importDocumentsMethodDescriptor =
+          ApiMethodDescriptor.newBuilder()
+              .setFullMethodName("google.cloud.documentai.v1beta3.DocumentService/ImportDocuments")
+              .setHttpMethod("POST")
+              .setType(ApiMethodDescriptor.MethodType.UNARY)
+              .setRequestFormatter(
+                  ProtoMessageRequestFormatter.newBuilder()
+                      .setPath(
+                          "/v1beta3/{dataset=projects/*/locations/*/processors/*/dataset}:importDocuments",
+                          request -> {
+                            Map fields = new HashMap<>();
+                            ProtoRestSerializer serializer =
+                                ProtoRestSerializer.create();
+                            serializer.putPathParam(fields, "dataset", request.getDataset());
+                            return fields;
+                          })
+                      .setQueryParamsExtractor(
+                          request -> {
+                            Map> fields = new HashMap<>();
+                            ProtoRestSerializer serializer =
+                                ProtoRestSerializer.create();
+                            serializer.putQueryParam(fields, "$alt", "json;enum-encoding=int");
+                            return fields;
+                          })
+                      .setRequestBodyExtractor(
+                          request ->
+                              ProtoRestSerializer.create()
+                                  .toBody("*", request.toBuilder().clearDataset().build(), true))
+                      .build())
+              .setResponseParser(
+                  ProtoMessageResponseParser.newBuilder()
+                      .setDefaultInstance(Operation.getDefaultInstance())
+                      .setDefaultTypeRegistry(typeRegistry)
+                      .build())
+              .setOperationSnapshotFactory(
+                  (ImportDocumentsRequest request, Operation response) ->
+                      HttpJsonOperationSnapshot.create(response))
+              .build();
+
+  private static final ApiMethodDescriptor
+      getDocumentMethodDescriptor =
+          ApiMethodDescriptor.newBuilder()
+              .setFullMethodName("google.cloud.documentai.v1beta3.DocumentService/GetDocument")
+              .setHttpMethod("GET")
+              .setType(ApiMethodDescriptor.MethodType.UNARY)
+              .setRequestFormatter(
+                  ProtoMessageRequestFormatter.newBuilder()
+                      .setPath(
+                          "/v1beta3/{dataset=projects/*/locations/*/processors/*/dataset}:getDocument",
+                          request -> {
+                            Map fields = new HashMap<>();
+                            ProtoRestSerializer serializer =
+                                ProtoRestSerializer.create();
+                            serializer.putPathParam(fields, "dataset", request.getDataset());
+                            return fields;
+                          })
+                      .setQueryParamsExtractor(
+                          request -> {
+                            Map> fields = new HashMap<>();
+                            ProtoRestSerializer serializer =
+                                ProtoRestSerializer.create();
+                            serializer.putQueryParam(fields, "documentId", request.getDocumentId());
+                            serializer.putQueryParam(fields, "pageRange", request.getPageRange());
+                            serializer.putQueryParam(fields, "readMask", request.getReadMask());
+                            serializer.putQueryParam(fields, "$alt", "json;enum-encoding=int");
+                            return fields;
+                          })
+                      .setRequestBodyExtractor(request -> null)
+                      .build())
+              .setResponseParser(
+                  ProtoMessageResponseParser.newBuilder()
+                      .setDefaultInstance(GetDocumentResponse.getDefaultInstance())
+                      .setDefaultTypeRegistry(typeRegistry)
+                      .build())
+              .build();
+
+  private static final ApiMethodDescriptor
+      batchDeleteDocumentsMethodDescriptor =
+          ApiMethodDescriptor.newBuilder()
+              .setFullMethodName(
+                  "google.cloud.documentai.v1beta3.DocumentService/BatchDeleteDocuments")
+              .setHttpMethod("POST")
+              .setType(ApiMethodDescriptor.MethodType.UNARY)
+              .setRequestFormatter(
+                  ProtoMessageRequestFormatter.newBuilder()
+                      .setPath(
+                          "/v1beta3/{dataset=projects/*/locations/*/processors/*/dataset}:batchDeleteDocuments",
+                          request -> {
+                            Map fields = new HashMap<>();
+                            ProtoRestSerializer serializer =
+                                ProtoRestSerializer.create();
+                            serializer.putPathParam(fields, "dataset", request.getDataset());
+                            return fields;
+                          })
+                      .setQueryParamsExtractor(
+                          request -> {
+                            Map> fields = new HashMap<>();
+                            ProtoRestSerializer serializer =
+                                ProtoRestSerializer.create();
+                            serializer.putQueryParam(fields, "$alt", "json;enum-encoding=int");
+                            return fields;
+                          })
+                      .setRequestBodyExtractor(
+                          request ->
+                              ProtoRestSerializer.create()
+                                  .toBody("*", request.toBuilder().clearDataset().build(), true))
+                      .build())
+              .setResponseParser(
+                  ProtoMessageResponseParser.newBuilder()
+                      .setDefaultInstance(Operation.getDefaultInstance())
+                      .setDefaultTypeRegistry(typeRegistry)
+                      .build())
+              .setOperationSnapshotFactory(
+                  (BatchDeleteDocumentsRequest request, Operation response) ->
+                      HttpJsonOperationSnapshot.create(response))
+              .build();
+
   private static final ApiMethodDescriptor
       getDatasetSchemaMethodDescriptor =
           ApiMethodDescriptor.newBuilder()
@@ -262,6 +392,15 @@ public class HttpJsonDocumentServiceStub extends DocumentServiceStub {
   private final UnaryCallable updateDatasetCallable;
   private final OperationCallable
       updateDatasetOperationCallable;
+  private final UnaryCallable importDocumentsCallable;
+  private final OperationCallable<
+          ImportDocumentsRequest, ImportDocumentsResponse, ImportDocumentsMetadata>
+      importDocumentsOperationCallable;
+  private final UnaryCallable getDocumentCallable;
+  private final UnaryCallable batchDeleteDocumentsCallable;
+  private final OperationCallable<
+          BatchDeleteDocumentsRequest, BatchDeleteDocumentsResponse, BatchDeleteDocumentsMetadata>
+      batchDeleteDocumentsOperationCallable;
   private final UnaryCallable getDatasetSchemaCallable;
   private final UnaryCallable
       updateDatasetSchemaCallable;
@@ -359,6 +498,40 @@ protected HttpJsonDocumentServiceStub(
                   return builder.build();
                 })
             .build();
+    HttpJsonCallSettings importDocumentsTransportSettings =
+        HttpJsonCallSettings.newBuilder()
+            .setMethodDescriptor(importDocumentsMethodDescriptor)
+            .setTypeRegistry(typeRegistry)
+            .setParamsExtractor(
+                request -> {
+                  RequestParamsBuilder builder = RequestParamsBuilder.create();
+                  builder.add("dataset", String.valueOf(request.getDataset()));
+                  return builder.build();
+                })
+            .build();
+    HttpJsonCallSettings getDocumentTransportSettings =
+        HttpJsonCallSettings.newBuilder()
+            .setMethodDescriptor(getDocumentMethodDescriptor)
+            .setTypeRegistry(typeRegistry)
+            .setParamsExtractor(
+                request -> {
+                  RequestParamsBuilder builder = RequestParamsBuilder.create();
+                  builder.add("dataset", String.valueOf(request.getDataset()));
+                  return builder.build();
+                })
+            .build();
+    HttpJsonCallSettings
+        batchDeleteDocumentsTransportSettings =
+            HttpJsonCallSettings.newBuilder()
+                .setMethodDescriptor(batchDeleteDocumentsMethodDescriptor)
+                .setTypeRegistry(typeRegistry)
+                .setParamsExtractor(
+                    request -> {
+                      RequestParamsBuilder builder = RequestParamsBuilder.create();
+                      builder.add("dataset", String.valueOf(request.getDataset()));
+                      return builder.build();
+                    })
+                .build();
     HttpJsonCallSettings getDatasetSchemaTransportSettings =
         HttpJsonCallSettings.newBuilder()
             .setMethodDescriptor(getDatasetSchemaMethodDescriptor)
@@ -417,6 +590,29 @@ protected HttpJsonDocumentServiceStub(
             settings.updateDatasetOperationSettings(),
             clientContext,
             httpJsonOperationsStub);
+    this.importDocumentsCallable =
+        callableFactory.createUnaryCallable(
+            importDocumentsTransportSettings, settings.importDocumentsSettings(), clientContext);
+    this.importDocumentsOperationCallable =
+        callableFactory.createOperationCallable(
+            importDocumentsTransportSettings,
+            settings.importDocumentsOperationSettings(),
+            clientContext,
+            httpJsonOperationsStub);
+    this.getDocumentCallable =
+        callableFactory.createUnaryCallable(
+            getDocumentTransportSettings, settings.getDocumentSettings(), clientContext);
+    this.batchDeleteDocumentsCallable =
+        callableFactory.createUnaryCallable(
+            batchDeleteDocumentsTransportSettings,
+            settings.batchDeleteDocumentsSettings(),
+            clientContext);
+    this.batchDeleteDocumentsOperationCallable =
+        callableFactory.createOperationCallable(
+            batchDeleteDocumentsTransportSettings,
+            settings.batchDeleteDocumentsOperationSettings(),
+            clientContext,
+            httpJsonOperationsStub);
     this.getDatasetSchemaCallable =
         callableFactory.createUnaryCallable(
             getDatasetSchemaTransportSettings, settings.getDatasetSchemaSettings(), clientContext);
@@ -443,6 +639,9 @@ protected HttpJsonDocumentServiceStub(
   public static List getMethodDescriptors() {
     List methodDescriptors = new ArrayList<>();
     methodDescriptors.add(updateDatasetMethodDescriptor);
+    methodDescriptors.add(importDocumentsMethodDescriptor);
+    methodDescriptors.add(getDocumentMethodDescriptor);
+    methodDescriptors.add(batchDeleteDocumentsMethodDescriptor);
     methodDescriptors.add(getDatasetSchemaMethodDescriptor);
     methodDescriptors.add(updateDatasetSchemaMethodDescriptor);
     methodDescriptors.add(listLocationsMethodDescriptor);
@@ -465,6 +664,34 @@ public UnaryCallable updateDatasetCallable() {
     return updateDatasetOperationCallable;
   }
 
+  @Override
+  public UnaryCallable importDocumentsCallable() {
+    return importDocumentsCallable;
+  }
+
+  @Override
+  public OperationCallable
+      importDocumentsOperationCallable() {
+    return importDocumentsOperationCallable;
+  }
+
+  @Override
+  public UnaryCallable getDocumentCallable() {
+    return getDocumentCallable;
+  }
+
+  @Override
+  public UnaryCallable batchDeleteDocumentsCallable() {
+    return batchDeleteDocumentsCallable;
+  }
+
+  @Override
+  public OperationCallable<
+          BatchDeleteDocumentsRequest, BatchDeleteDocumentsResponse, BatchDeleteDocumentsMetadata>
+      batchDeleteDocumentsOperationCallable() {
+    return batchDeleteDocumentsOperationCallable;
+  }
+
   @Override
   public UnaryCallable getDatasetSchemaCallable() {
     return getDatasetSchemaCallable;
diff --git a/java-document-ai/google-cloud-document-ai/src/test/java/com/google/cloud/documentai/v1beta2/DocumentUnderstandingServiceClientTest.java b/java-document-ai/google-cloud-document-ai/src/test/java/com/google/cloud/documentai/v1beta2/DocumentUnderstandingServiceClientTest.java
index b3ae971361f8..9e7ac1ff8fd6 100644
--- a/java-document-ai/google-cloud-document-ai/src/test/java/com/google/cloud/documentai/v1beta2/DocumentUnderstandingServiceClientTest.java
+++ b/java-document-ai/google-cloud-document-ai/src/test/java/com/google/cloud/documentai/v1beta2/DocumentUnderstandingServiceClientTest.java
@@ -16,6 +16,8 @@
 
 package com.google.cloud.documentai.v1beta2;
 
+import static com.google.cloud.documentai.v1beta2.DocumentUnderstandingServiceClient.ListLocationsPagedResponse;
+
 import com.google.api.gax.core.NoCredentialsProvider;
 import com.google.api.gax.grpc.GaxGrpcProperties;
 import com.google.api.gax.grpc.testing.LocalChannelProvider;
@@ -24,6 +26,11 @@
 import com.google.api.gax.rpc.ApiClientHeaderProvider;
 import com.google.api.gax.rpc.InvalidArgumentException;
 import com.google.api.gax.rpc.StatusCode;
+import com.google.cloud.location.GetLocationRequest;
+import com.google.cloud.location.ListLocationsRequest;
+import com.google.cloud.location.ListLocationsResponse;
+import com.google.cloud.location.Location;
+import com.google.common.collect.Lists;
 import com.google.longrunning.Operation;
 import com.google.protobuf.AbstractMessage;
 import com.google.protobuf.Any;
@@ -32,6 +39,7 @@
 import java.io.IOException;
 import java.util.ArrayList;
 import java.util.Arrays;
+import java.util.HashMap;
 import java.util.List;
 import java.util.UUID;
 import java.util.concurrent.ExecutionException;
@@ -46,6 +54,7 @@
 @Generated("by gapic-generator-java")
 public class DocumentUnderstandingServiceClientTest {
   private static MockDocumentUnderstandingService mockDocumentUnderstandingService;
+  private static MockLocations mockLocations;
   private static MockServiceHelper mockServiceHelper;
   private LocalChannelProvider channelProvider;
   private DocumentUnderstandingServiceClient client;
@@ -53,10 +62,11 @@ public class DocumentUnderstandingServiceClientTest {
   @BeforeClass
   public static void startStaticServer() {
     mockDocumentUnderstandingService = new MockDocumentUnderstandingService();
+    mockLocations = new MockLocations();
     mockServiceHelper =
         new MockServiceHelper(
             UUID.randomUUID().toString(),
-            Arrays.asList(mockDocumentUnderstandingService));
+            Arrays.asList(mockDocumentUnderstandingService, mockLocations));
     mockServiceHelper.start();
   }
 
@@ -140,9 +150,11 @@ public void processDocumentTest() throws Exception {
             .addAllPages(new ArrayList())
             .addAllEntities(new ArrayList())
             .addAllEntityRelations(new ArrayList())
+            .addAllTextChanges(new ArrayList())
             .setShardInfo(Document.ShardInfo.newBuilder().build())
             .addAllLabels(new ArrayList())
             .setError(Status.newBuilder().build())
+            .addAllRevisions(new ArrayList())
             .build();
     mockDocumentUnderstandingService.addResponse(expectedResponse);
 
@@ -207,4 +219,105 @@ public void processDocumentExceptionTest() throws Exception {
       // Expected exception.
     }
   }
+
+  @Test
+  public void listLocationsTest() throws Exception {
+    Location responsesElement = Location.newBuilder().build();
+    ListLocationsResponse expectedResponse =
+        ListLocationsResponse.newBuilder()
+            .setNextPageToken("")
+            .addAllLocations(Arrays.asList(responsesElement))
+            .build();
+    mockLocations.addResponse(expectedResponse);
+
+    ListLocationsRequest request =
+        ListLocationsRequest.newBuilder()
+            .setName("name3373707")
+            .setFilter("filter-1274492040")
+            .setPageSize(883849137)
+            .setPageToken("pageToken873572522")
+            .build();
+
+    ListLocationsPagedResponse pagedListResponse = client.listLocations(request);
+
+    List resources = Lists.newArrayList(pagedListResponse.iterateAll());
+
+    Assert.assertEquals(1, resources.size());
+    Assert.assertEquals(expectedResponse.getLocationsList().get(0), resources.get(0));
+
+    List actualRequests = mockLocations.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    ListLocationsRequest actualRequest = ((ListLocationsRequest) actualRequests.get(0));
+
+    Assert.assertEquals(request.getName(), actualRequest.getName());
+    Assert.assertEquals(request.getFilter(), actualRequest.getFilter());
+    Assert.assertEquals(request.getPageSize(), actualRequest.getPageSize());
+    Assert.assertEquals(request.getPageToken(), actualRequest.getPageToken());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  public void listLocationsExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
+    mockLocations.addException(exception);
+
+    try {
+      ListLocationsRequest request =
+          ListLocationsRequest.newBuilder()
+              .setName("name3373707")
+              .setFilter("filter-1274492040")
+              .setPageSize(883849137)
+              .setPageToken("pageToken873572522")
+              .build();
+      client.listLocations(request);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception.
+    }
+  }
+
+  @Test
+  public void getLocationTest() throws Exception {
+    Location expectedResponse =
+        Location.newBuilder()
+            .setName("name3373707")
+            .setLocationId("locationId1541836720")
+            .setDisplayName("displayName1714148973")
+            .putAllLabels(new HashMap())
+            .setMetadata(Any.newBuilder().build())
+            .build();
+    mockLocations.addResponse(expectedResponse);
+
+    GetLocationRequest request = GetLocationRequest.newBuilder().setName("name3373707").build();
+
+    Location actualResponse = client.getLocation(request);
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List actualRequests = mockLocations.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    GetLocationRequest actualRequest = ((GetLocationRequest) actualRequests.get(0));
+
+    Assert.assertEquals(request.getName(), actualRequest.getName());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  public void getLocationExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
+    mockLocations.addException(exception);
+
+    try {
+      GetLocationRequest request = GetLocationRequest.newBuilder().setName("name3373707").build();
+      client.getLocation(request);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception.
+    }
+  }
 }
diff --git a/java-document-ai/google-cloud-document-ai/src/test/java/com/google/cloud/documentai/v1beta2/MockLocations.java b/java-document-ai/google-cloud-document-ai/src/test/java/com/google/cloud/documentai/v1beta2/MockLocations.java
new file mode 100644
index 000000000000..9d069e894a54
--- /dev/null
+++ b/java-document-ai/google-cloud-document-ai/src/test/java/com/google/cloud/documentai/v1beta2/MockLocations.java
@@ -0,0 +1,59 @@
+/*
+ * Copyright 2023 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.documentai.v1beta2;
+
+import com.google.api.core.BetaApi;
+import com.google.api.gax.grpc.testing.MockGrpcService;
+import com.google.protobuf.AbstractMessage;
+import io.grpc.ServerServiceDefinition;
+import java.util.List;
+import javax.annotation.Generated;
+
+@BetaApi
+@Generated("by gapic-generator-java")
+public class MockLocations implements MockGrpcService {
+  private final MockLocationsImpl serviceImpl;
+
+  public MockLocations() {
+    serviceImpl = new MockLocationsImpl();
+  }
+
+  @Override
+  public List getRequests() {
+    return serviceImpl.getRequests();
+  }
+
+  @Override
+  public void addResponse(AbstractMessage response) {
+    serviceImpl.addResponse(response);
+  }
+
+  @Override
+  public void addException(Exception exception) {
+    serviceImpl.addException(exception);
+  }
+
+  @Override
+  public ServerServiceDefinition getServiceDefinition() {
+    return serviceImpl.bindService();
+  }
+
+  @Override
+  public void reset() {
+    serviceImpl.reset();
+  }
+}
diff --git a/java-document-ai/google-cloud-document-ai/src/test/java/com/google/cloud/documentai/v1beta2/MockLocationsImpl.java b/java-document-ai/google-cloud-document-ai/src/test/java/com/google/cloud/documentai/v1beta2/MockLocationsImpl.java
new file mode 100644
index 000000000000..d8dc15bcd4b4
--- /dev/null
+++ b/java-document-ai/google-cloud-document-ai/src/test/java/com/google/cloud/documentai/v1beta2/MockLocationsImpl.java
@@ -0,0 +1,105 @@
+/*
+ * Copyright 2023 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.documentai.v1beta2;
+
+import com.google.api.core.BetaApi;
+import com.google.cloud.location.GetLocationRequest;
+import com.google.cloud.location.ListLocationsRequest;
+import com.google.cloud.location.ListLocationsResponse;
+import com.google.cloud.location.Location;
+import com.google.cloud.location.LocationsGrpc.LocationsImplBase;
+import com.google.protobuf.AbstractMessage;
+import io.grpc.stub.StreamObserver;
+import java.util.ArrayList;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Queue;
+import javax.annotation.Generated;
+
+@BetaApi
+@Generated("by gapic-generator-java")
+public class MockLocationsImpl extends LocationsImplBase {
+  private List requests;
+  private Queue responses;
+
+  public MockLocationsImpl() {
+    requests = new ArrayList<>();
+    responses = new LinkedList<>();
+  }
+
+  public List getRequests() {
+    return requests;
+  }
+
+  public void addResponse(AbstractMessage response) {
+    responses.add(response);
+  }
+
+  public void setResponses(List responses) {
+    this.responses = new LinkedList(responses);
+  }
+
+  public void addException(Exception exception) {
+    responses.add(exception);
+  }
+
+  public void reset() {
+    requests = new ArrayList<>();
+    responses = new LinkedList<>();
+  }
+
+  @Override
+  public void listLocations(
+      ListLocationsRequest request, StreamObserver responseObserver) {
+    Object response = responses.poll();
+    if (response instanceof ListLocationsResponse) {
+      requests.add(request);
+      responseObserver.onNext(((ListLocationsResponse) response));
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError(((Exception) response));
+    } else {
+      responseObserver.onError(
+          new IllegalArgumentException(
+              String.format(
+                  "Unrecognized response type %s for method ListLocations, expected %s or %s",
+                  response == null ? "null" : response.getClass().getName(),
+                  ListLocationsResponse.class.getName(),
+                  Exception.class.getName())));
+    }
+  }
+
+  @Override
+  public void getLocation(GetLocationRequest request, StreamObserver responseObserver) {
+    Object response = responses.poll();
+    if (response instanceof Location) {
+      requests.add(request);
+      responseObserver.onNext(((Location) response));
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError(((Exception) response));
+    } else {
+      responseObserver.onError(
+          new IllegalArgumentException(
+              String.format(
+                  "Unrecognized response type %s for method GetLocation, expected %s or %s",
+                  response == null ? "null" : response.getClass().getName(),
+                  Location.class.getName(),
+                  Exception.class.getName())));
+    }
+  }
+}
diff --git a/java-document-ai/google-cloud-document-ai/src/test/java/com/google/cloud/documentai/v1beta3/DocumentServiceClientHttpJsonTest.java b/java-document-ai/google-cloud-document-ai/src/test/java/com/google/cloud/documentai/v1beta3/DocumentServiceClientHttpJsonTest.java
index fc73c0cd913a..fb6436dfc936 100644
--- a/java-document-ai/google-cloud-document-ai/src/test/java/com/google/cloud/documentai/v1beta3/DocumentServiceClientHttpJsonTest.java
+++ b/java-document-ai/google-cloud-document-ai/src/test/java/com/google/cloud/documentai/v1beta3/DocumentServiceClientHttpJsonTest.java
@@ -86,7 +86,10 @@ public void tearDown() throws Exception {
 
   @Test
   public void updateDatasetTest() throws Exception {
-    Dataset expectedResponse = Dataset.newBuilder().setName("name3373707").build();
+    Dataset expectedResponse =
+        Dataset.newBuilder()
+            .setName(DatasetName.of("[PROJECT]", "[LOCATION]", "[PROCESSOR]").toString())
+            .build();
     Operation resultOperation =
         Operation.newBuilder()
             .setName("updateDatasetTest")
@@ -97,8 +100,7 @@ public void updateDatasetTest() throws Exception {
 
     Dataset dataset =
         Dataset.newBuilder()
-            .setName(
-                "projects/project-2550/locations/location-2550/processors/processor-2550/dataset")
+            .setName(DatasetName.of("[PROJECT]", "[LOCATION]", "[PROCESSOR]").toString())
             .build();
     FieldMask updateMask = FieldMask.newBuilder().build();
 
@@ -130,8 +132,7 @@ public void updateDatasetExceptionTest() throws Exception {
     try {
       Dataset dataset =
           Dataset.newBuilder()
-              .setName(
-                  "projects/project-2550/locations/location-2550/processors/processor-2550/dataset")
+              .setName(DatasetName.of("[PROJECT]", "[LOCATION]", "[PROCESSOR]").toString())
               .build();
       FieldMask updateMask = FieldMask.newBuilder().build();
       client.updateDatasetAsync(dataset, updateMask).get();
@@ -140,6 +141,235 @@ public void updateDatasetExceptionTest() throws Exception {
     }
   }
 
+  @Test
+  public void importDocumentsTest() throws Exception {
+    ImportDocumentsResponse expectedResponse = ImportDocumentsResponse.newBuilder().build();
+    Operation resultOperation =
+        Operation.newBuilder()
+            .setName("importDocumentsTest")
+            .setDone(true)
+            .setResponse(Any.pack(expectedResponse))
+            .build();
+    mockService.addResponse(resultOperation);
+
+    DatasetName dataset = DatasetName.of("[PROJECT]", "[LOCATION]", "[PROCESSOR]");
+
+    ImportDocumentsResponse actualResponse = client.importDocumentsAsync(dataset).get();
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List actualRequests = mockService.getRequestPaths();
+    Assert.assertEquals(1, actualRequests.size());
+
+    String apiClientHeaderKey =
+        mockService
+            .getRequestHeaders()
+            .get(ApiClientHeaderProvider.getDefaultApiClientHeaderKey())
+            .iterator()
+            .next();
+    Assert.assertTrue(
+        GaxHttpJsonProperties.getDefaultApiClientHeaderPattern()
+            .matcher(apiClientHeaderKey)
+            .matches());
+  }
+
+  @Test
+  public void importDocumentsExceptionTest() throws Exception {
+    ApiException exception =
+        ApiExceptionFactory.createException(
+            new Exception(), FakeStatusCode.of(StatusCode.Code.INVALID_ARGUMENT), false);
+    mockService.addException(exception);
+
+    try {
+      DatasetName dataset = DatasetName.of("[PROJECT]", "[LOCATION]", "[PROCESSOR]");
+      client.importDocumentsAsync(dataset).get();
+      Assert.fail("No exception raised");
+    } catch (ExecutionException e) {
+    }
+  }
+
+  @Test
+  public void importDocumentsTest2() throws Exception {
+    ImportDocumentsResponse expectedResponse = ImportDocumentsResponse.newBuilder().build();
+    Operation resultOperation =
+        Operation.newBuilder()
+            .setName("importDocumentsTest")
+            .setDone(true)
+            .setResponse(Any.pack(expectedResponse))
+            .build();
+    mockService.addResponse(resultOperation);
+
+    String dataset =
+        "projects/project-9539/locations/location-9539/processors/processor-9539/dataset";
+
+    ImportDocumentsResponse actualResponse = client.importDocumentsAsync(dataset).get();
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List actualRequests = mockService.getRequestPaths();
+    Assert.assertEquals(1, actualRequests.size());
+
+    String apiClientHeaderKey =
+        mockService
+            .getRequestHeaders()
+            .get(ApiClientHeaderProvider.getDefaultApiClientHeaderKey())
+            .iterator()
+            .next();
+    Assert.assertTrue(
+        GaxHttpJsonProperties.getDefaultApiClientHeaderPattern()
+            .matcher(apiClientHeaderKey)
+            .matches());
+  }
+
+  @Test
+  public void importDocumentsExceptionTest2() throws Exception {
+    ApiException exception =
+        ApiExceptionFactory.createException(
+            new Exception(), FakeStatusCode.of(StatusCode.Code.INVALID_ARGUMENT), false);
+    mockService.addException(exception);
+
+    try {
+      String dataset =
+          "projects/project-9539/locations/location-9539/processors/processor-9539/dataset";
+      client.importDocumentsAsync(dataset).get();
+      Assert.fail("No exception raised");
+    } catch (ExecutionException e) {
+    }
+  }
+
+  @Test
+  public void getDocumentTest() throws Exception {
+    GetDocumentResponse expectedResponse =
+        GetDocumentResponse.newBuilder().setDocument(Document.newBuilder().build()).build();
+    mockService.addResponse(expectedResponse);
+
+    DatasetName dataset = DatasetName.of("[PROJECT]", "[LOCATION]", "[PROCESSOR]");
+
+    GetDocumentResponse actualResponse = client.getDocument(dataset);
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List actualRequests = mockService.getRequestPaths();
+    Assert.assertEquals(1, actualRequests.size());
+
+    String apiClientHeaderKey =
+        mockService
+            .getRequestHeaders()
+            .get(ApiClientHeaderProvider.getDefaultApiClientHeaderKey())
+            .iterator()
+            .next();
+    Assert.assertTrue(
+        GaxHttpJsonProperties.getDefaultApiClientHeaderPattern()
+            .matcher(apiClientHeaderKey)
+            .matches());
+  }
+
+  @Test
+  public void getDocumentExceptionTest() throws Exception {
+    ApiException exception =
+        ApiExceptionFactory.createException(
+            new Exception(), FakeStatusCode.of(StatusCode.Code.INVALID_ARGUMENT), false);
+    mockService.addException(exception);
+
+    try {
+      DatasetName dataset = DatasetName.of("[PROJECT]", "[LOCATION]", "[PROCESSOR]");
+      client.getDocument(dataset);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception.
+    }
+  }
+
+  @Test
+  public void getDocumentTest2() throws Exception {
+    GetDocumentResponse expectedResponse =
+        GetDocumentResponse.newBuilder().setDocument(Document.newBuilder().build()).build();
+    mockService.addResponse(expectedResponse);
+
+    String dataset =
+        "projects/project-9539/locations/location-9539/processors/processor-9539/dataset";
+
+    GetDocumentResponse actualResponse = client.getDocument(dataset);
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List actualRequests = mockService.getRequestPaths();
+    Assert.assertEquals(1, actualRequests.size());
+
+    String apiClientHeaderKey =
+        mockService
+            .getRequestHeaders()
+            .get(ApiClientHeaderProvider.getDefaultApiClientHeaderKey())
+            .iterator()
+            .next();
+    Assert.assertTrue(
+        GaxHttpJsonProperties.getDefaultApiClientHeaderPattern()
+            .matcher(apiClientHeaderKey)
+            .matches());
+  }
+
+  @Test
+  public void getDocumentExceptionTest2() throws Exception {
+    ApiException exception =
+        ApiExceptionFactory.createException(
+            new Exception(), FakeStatusCode.of(StatusCode.Code.INVALID_ARGUMENT), false);
+    mockService.addException(exception);
+
+    try {
+      String dataset =
+          "projects/project-9539/locations/location-9539/processors/processor-9539/dataset";
+      client.getDocument(dataset);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception.
+    }
+  }
+
+  @Test
+  public void batchDeleteDocumentsTest() throws Exception {
+    BatchDeleteDocumentsResponse expectedResponse =
+        BatchDeleteDocumentsResponse.newBuilder().build();
+    Operation resultOperation =
+        Operation.newBuilder()
+            .setName("batchDeleteDocumentsTest")
+            .setDone(true)
+            .setResponse(Any.pack(expectedResponse))
+            .build();
+    mockService.addResponse(resultOperation);
+
+    String dataset =
+        "projects/project-9539/locations/location-9539/processors/processor-9539/dataset";
+
+    BatchDeleteDocumentsResponse actualResponse = client.batchDeleteDocumentsAsync(dataset).get();
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List actualRequests = mockService.getRequestPaths();
+    Assert.assertEquals(1, actualRequests.size());
+
+    String apiClientHeaderKey =
+        mockService
+            .getRequestHeaders()
+            .get(ApiClientHeaderProvider.getDefaultApiClientHeaderKey())
+            .iterator()
+            .next();
+    Assert.assertTrue(
+        GaxHttpJsonProperties.getDefaultApiClientHeaderPattern()
+            .matcher(apiClientHeaderKey)
+            .matches());
+  }
+
+  @Test
+  public void batchDeleteDocumentsExceptionTest() throws Exception {
+    ApiException exception =
+        ApiExceptionFactory.createException(
+            new Exception(), FakeStatusCode.of(StatusCode.Code.INVALID_ARGUMENT), false);
+    mockService.addException(exception);
+
+    try {
+      String dataset =
+          "projects/project-9539/locations/location-9539/processors/processor-9539/dataset";
+      client.batchDeleteDocumentsAsync(dataset).get();
+      Assert.fail("No exception raised");
+    } catch (ExecutionException e) {
+    }
+  }
+
   @Test
   public void getDatasetSchemaTest() throws Exception {
     DatasetSchema expectedResponse =
diff --git a/java-document-ai/google-cloud-document-ai/src/test/java/com/google/cloud/documentai/v1beta3/DocumentServiceClientTest.java b/java-document-ai/google-cloud-document-ai/src/test/java/com/google/cloud/documentai/v1beta3/DocumentServiceClientTest.java
index 719c1fcc8f38..3c0e30804142 100644
--- a/java-document-ai/google-cloud-document-ai/src/test/java/com/google/cloud/documentai/v1beta3/DocumentServiceClientTest.java
+++ b/java-document-ai/google-cloud-document-ai/src/test/java/com/google/cloud/documentai/v1beta3/DocumentServiceClientTest.java
@@ -93,7 +93,10 @@ public void tearDown() throws Exception {
 
   @Test
   public void updateDatasetTest() throws Exception {
-    Dataset expectedResponse = Dataset.newBuilder().setName("name3373707").build();
+    Dataset expectedResponse =
+        Dataset.newBuilder()
+            .setName(DatasetName.of("[PROJECT]", "[LOCATION]", "[PROCESSOR]").toString())
+            .build();
     Operation resultOperation =
         Operation.newBuilder()
             .setName("updateDatasetTest")
@@ -137,6 +140,209 @@ public void updateDatasetExceptionTest() throws Exception {
     }
   }
 
+  @Test
+  public void importDocumentsTest() throws Exception {
+    ImportDocumentsResponse expectedResponse = ImportDocumentsResponse.newBuilder().build();
+    Operation resultOperation =
+        Operation.newBuilder()
+            .setName("importDocumentsTest")
+            .setDone(true)
+            .setResponse(Any.pack(expectedResponse))
+            .build();
+    mockDocumentService.addResponse(resultOperation);
+
+    DatasetName dataset = DatasetName.of("[PROJECT]", "[LOCATION]", "[PROCESSOR]");
+
+    ImportDocumentsResponse actualResponse = client.importDocumentsAsync(dataset).get();
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List actualRequests = mockDocumentService.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    ImportDocumentsRequest actualRequest = ((ImportDocumentsRequest) actualRequests.get(0));
+
+    Assert.assertEquals(dataset.toString(), actualRequest.getDataset());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  public void importDocumentsExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
+    mockDocumentService.addException(exception);
+
+    try {
+      DatasetName dataset = DatasetName.of("[PROJECT]", "[LOCATION]", "[PROCESSOR]");
+      client.importDocumentsAsync(dataset).get();
+      Assert.fail("No exception raised");
+    } catch (ExecutionException e) {
+      Assert.assertEquals(InvalidArgumentException.class, e.getCause().getClass());
+      InvalidArgumentException apiException = ((InvalidArgumentException) e.getCause());
+      Assert.assertEquals(StatusCode.Code.INVALID_ARGUMENT, apiException.getStatusCode().getCode());
+    }
+  }
+
+  @Test
+  public void importDocumentsTest2() throws Exception {
+    ImportDocumentsResponse expectedResponse = ImportDocumentsResponse.newBuilder().build();
+    Operation resultOperation =
+        Operation.newBuilder()
+            .setName("importDocumentsTest")
+            .setDone(true)
+            .setResponse(Any.pack(expectedResponse))
+            .build();
+    mockDocumentService.addResponse(resultOperation);
+
+    String dataset = "dataset1443214456";
+
+    ImportDocumentsResponse actualResponse = client.importDocumentsAsync(dataset).get();
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List actualRequests = mockDocumentService.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    ImportDocumentsRequest actualRequest = ((ImportDocumentsRequest) actualRequests.get(0));
+
+    Assert.assertEquals(dataset, actualRequest.getDataset());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  public void importDocumentsExceptionTest2() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
+    mockDocumentService.addException(exception);
+
+    try {
+      String dataset = "dataset1443214456";
+      client.importDocumentsAsync(dataset).get();
+      Assert.fail("No exception raised");
+    } catch (ExecutionException e) {
+      Assert.assertEquals(InvalidArgumentException.class, e.getCause().getClass());
+      InvalidArgumentException apiException = ((InvalidArgumentException) e.getCause());
+      Assert.assertEquals(StatusCode.Code.INVALID_ARGUMENT, apiException.getStatusCode().getCode());
+    }
+  }
+
+  @Test
+  public void getDocumentTest() throws Exception {
+    GetDocumentResponse expectedResponse =
+        GetDocumentResponse.newBuilder().setDocument(Document.newBuilder().build()).build();
+    mockDocumentService.addResponse(expectedResponse);
+
+    DatasetName dataset = DatasetName.of("[PROJECT]", "[LOCATION]", "[PROCESSOR]");
+
+    GetDocumentResponse actualResponse = client.getDocument(dataset);
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List actualRequests = mockDocumentService.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    GetDocumentRequest actualRequest = ((GetDocumentRequest) actualRequests.get(0));
+
+    Assert.assertEquals(dataset.toString(), actualRequest.getDataset());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  public void getDocumentExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
+    mockDocumentService.addException(exception);
+
+    try {
+      DatasetName dataset = DatasetName.of("[PROJECT]", "[LOCATION]", "[PROCESSOR]");
+      client.getDocument(dataset);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception.
+    }
+  }
+
+  @Test
+  public void getDocumentTest2() throws Exception {
+    GetDocumentResponse expectedResponse =
+        GetDocumentResponse.newBuilder().setDocument(Document.newBuilder().build()).build();
+    mockDocumentService.addResponse(expectedResponse);
+
+    String dataset = "dataset1443214456";
+
+    GetDocumentResponse actualResponse = client.getDocument(dataset);
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List actualRequests = mockDocumentService.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    GetDocumentRequest actualRequest = ((GetDocumentRequest) actualRequests.get(0));
+
+    Assert.assertEquals(dataset, actualRequest.getDataset());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  public void getDocumentExceptionTest2() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
+    mockDocumentService.addException(exception);
+
+    try {
+      String dataset = "dataset1443214456";
+      client.getDocument(dataset);
+      Assert.fail("No exception raised");
+    } catch (InvalidArgumentException e) {
+      // Expected exception.
+    }
+  }
+
+  @Test
+  public void batchDeleteDocumentsTest() throws Exception {
+    BatchDeleteDocumentsResponse expectedResponse =
+        BatchDeleteDocumentsResponse.newBuilder().build();
+    Operation resultOperation =
+        Operation.newBuilder()
+            .setName("batchDeleteDocumentsTest")
+            .setDone(true)
+            .setResponse(Any.pack(expectedResponse))
+            .build();
+    mockDocumentService.addResponse(resultOperation);
+
+    String dataset = "dataset1443214456";
+
+    BatchDeleteDocumentsResponse actualResponse = client.batchDeleteDocumentsAsync(dataset).get();
+    Assert.assertEquals(expectedResponse, actualResponse);
+
+    List actualRequests = mockDocumentService.getRequests();
+    Assert.assertEquals(1, actualRequests.size());
+    BatchDeleteDocumentsRequest actualRequest =
+        ((BatchDeleteDocumentsRequest) actualRequests.get(0));
+
+    Assert.assertEquals(dataset, actualRequest.getDataset());
+    Assert.assertTrue(
+        channelProvider.isHeaderSent(
+            ApiClientHeaderProvider.getDefaultApiClientHeaderKey(),
+            GaxGrpcProperties.getDefaultApiClientHeaderPattern()));
+  }
+
+  @Test
+  public void batchDeleteDocumentsExceptionTest() throws Exception {
+    StatusRuntimeException exception = new StatusRuntimeException(io.grpc.Status.INVALID_ARGUMENT);
+    mockDocumentService.addException(exception);
+
+    try {
+      String dataset = "dataset1443214456";
+      client.batchDeleteDocumentsAsync(dataset).get();
+      Assert.fail("No exception raised");
+    } catch (ExecutionException e) {
+      Assert.assertEquals(InvalidArgumentException.class, e.getCause().getClass());
+      InvalidArgumentException apiException = ((InvalidArgumentException) e.getCause());
+      Assert.assertEquals(StatusCode.Code.INVALID_ARGUMENT, apiException.getStatusCode().getCode());
+    }
+  }
+
   @Test
   public void getDatasetSchemaTest() throws Exception {
     DatasetSchema expectedResponse =
diff --git a/java-document-ai/google-cloud-document-ai/src/test/java/com/google/cloud/documentai/v1beta3/MockDocumentServiceImpl.java b/java-document-ai/google-cloud-document-ai/src/test/java/com/google/cloud/documentai/v1beta3/MockDocumentServiceImpl.java
index 6f8fb5085724..73fcd49d809c 100644
--- a/java-document-ai/google-cloud-document-ai/src/test/java/com/google/cloud/documentai/v1beta3/MockDocumentServiceImpl.java
+++ b/java-document-ai/google-cloud-document-ai/src/test/java/com/google/cloud/documentai/v1beta3/MockDocumentServiceImpl.java
@@ -80,6 +80,69 @@ public void updateDataset(
     }
   }
 
+  @Override
+  public void importDocuments(
+      ImportDocumentsRequest request, StreamObserver responseObserver) {
+    Object response = responses.poll();
+    if (response instanceof Operation) {
+      requests.add(request);
+      responseObserver.onNext(((Operation) response));
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError(((Exception) response));
+    } else {
+      responseObserver.onError(
+          new IllegalArgumentException(
+              String.format(
+                  "Unrecognized response type %s for method ImportDocuments, expected %s or %s",
+                  response == null ? "null" : response.getClass().getName(),
+                  Operation.class.getName(),
+                  Exception.class.getName())));
+    }
+  }
+
+  @Override
+  public void getDocument(
+      GetDocumentRequest request, StreamObserver responseObserver) {
+    Object response = responses.poll();
+    if (response instanceof GetDocumentResponse) {
+      requests.add(request);
+      responseObserver.onNext(((GetDocumentResponse) response));
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError(((Exception) response));
+    } else {
+      responseObserver.onError(
+          new IllegalArgumentException(
+              String.format(
+                  "Unrecognized response type %s for method GetDocument, expected %s or %s",
+                  response == null ? "null" : response.getClass().getName(),
+                  GetDocumentResponse.class.getName(),
+                  Exception.class.getName())));
+    }
+  }
+
+  @Override
+  public void batchDeleteDocuments(
+      BatchDeleteDocumentsRequest request, StreamObserver responseObserver) {
+    Object response = responses.poll();
+    if (response instanceof Operation) {
+      requests.add(request);
+      responseObserver.onNext(((Operation) response));
+      responseObserver.onCompleted();
+    } else if (response instanceof Exception) {
+      responseObserver.onError(((Exception) response));
+    } else {
+      responseObserver.onError(
+          new IllegalArgumentException(
+              String.format(
+                  "Unrecognized response type %s for method BatchDeleteDocuments, expected %s or %s",
+                  response == null ? "null" : response.getClass().getName(),
+                  Operation.class.getName(),
+                  Exception.class.getName())));
+    }
+  }
+
   @Override
   public void getDatasetSchema(
       GetDatasetSchemaRequest request, StreamObserver responseObserver) {
diff --git a/java-document-ai/grpc-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/DocumentServiceGrpc.java b/java-document-ai/grpc-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/DocumentServiceGrpc.java
index c95de0257aa3..66243980d9b0 100644
--- a/java-document-ai/grpc-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/DocumentServiceGrpc.java
+++ b/java-document-ai/grpc-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/DocumentServiceGrpc.java
@@ -81,6 +81,148 @@ private DocumentServiceGrpc() {}
     return getUpdateDatasetMethod;
   }
 
+  private static volatile io.grpc.MethodDescriptor<
+          com.google.cloud.documentai.v1beta3.ImportDocumentsRequest,
+          com.google.longrunning.Operation>
+      getImportDocumentsMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "ImportDocuments",
+      requestType = com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.class,
+      responseType = com.google.longrunning.Operation.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<
+          com.google.cloud.documentai.v1beta3.ImportDocumentsRequest,
+          com.google.longrunning.Operation>
+      getImportDocumentsMethod() {
+    io.grpc.MethodDescriptor<
+            com.google.cloud.documentai.v1beta3.ImportDocumentsRequest,
+            com.google.longrunning.Operation>
+        getImportDocumentsMethod;
+    if ((getImportDocumentsMethod = DocumentServiceGrpc.getImportDocumentsMethod) == null) {
+      synchronized (DocumentServiceGrpc.class) {
+        if ((getImportDocumentsMethod = DocumentServiceGrpc.getImportDocumentsMethod) == null) {
+          DocumentServiceGrpc.getImportDocumentsMethod =
+              getImportDocumentsMethod =
+                  io.grpc.MethodDescriptor
+                      .
+                          newBuilder()
+                      .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+                      .setFullMethodName(generateFullMethodName(SERVICE_NAME, "ImportDocuments"))
+                      .setSampledToLocalTracing(true)
+                      .setRequestMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.documentai.v1beta3.ImportDocumentsRequest
+                                  .getDefaultInstance()))
+                      .setResponseMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.longrunning.Operation.getDefaultInstance()))
+                      .setSchemaDescriptor(
+                          new DocumentServiceMethodDescriptorSupplier("ImportDocuments"))
+                      .build();
+        }
+      }
+    }
+    return getImportDocumentsMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<
+          com.google.cloud.documentai.v1beta3.GetDocumentRequest,
+          com.google.cloud.documentai.v1beta3.GetDocumentResponse>
+      getGetDocumentMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "GetDocument",
+      requestType = com.google.cloud.documentai.v1beta3.GetDocumentRequest.class,
+      responseType = com.google.cloud.documentai.v1beta3.GetDocumentResponse.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<
+          com.google.cloud.documentai.v1beta3.GetDocumentRequest,
+          com.google.cloud.documentai.v1beta3.GetDocumentResponse>
+      getGetDocumentMethod() {
+    io.grpc.MethodDescriptor<
+            com.google.cloud.documentai.v1beta3.GetDocumentRequest,
+            com.google.cloud.documentai.v1beta3.GetDocumentResponse>
+        getGetDocumentMethod;
+    if ((getGetDocumentMethod = DocumentServiceGrpc.getGetDocumentMethod) == null) {
+      synchronized (DocumentServiceGrpc.class) {
+        if ((getGetDocumentMethod = DocumentServiceGrpc.getGetDocumentMethod) == null) {
+          DocumentServiceGrpc.getGetDocumentMethod =
+              getGetDocumentMethod =
+                  io.grpc.MethodDescriptor
+                      .
+                          newBuilder()
+                      .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+                      .setFullMethodName(generateFullMethodName(SERVICE_NAME, "GetDocument"))
+                      .setSampledToLocalTracing(true)
+                      .setRequestMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.documentai.v1beta3.GetDocumentRequest
+                                  .getDefaultInstance()))
+                      .setResponseMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.documentai.v1beta3.GetDocumentResponse
+                                  .getDefaultInstance()))
+                      .setSchemaDescriptor(
+                          new DocumentServiceMethodDescriptorSupplier("GetDocument"))
+                      .build();
+        }
+      }
+    }
+    return getGetDocumentMethod;
+  }
+
+  private static volatile io.grpc.MethodDescriptor<
+          com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsRequest,
+          com.google.longrunning.Operation>
+      getBatchDeleteDocumentsMethod;
+
+  @io.grpc.stub.annotations.RpcMethod(
+      fullMethodName = SERVICE_NAME + '/' + "BatchDeleteDocuments",
+      requestType = com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsRequest.class,
+      responseType = com.google.longrunning.Operation.class,
+      methodType = io.grpc.MethodDescriptor.MethodType.UNARY)
+  public static io.grpc.MethodDescriptor<
+          com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsRequest,
+          com.google.longrunning.Operation>
+      getBatchDeleteDocumentsMethod() {
+    io.grpc.MethodDescriptor<
+            com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsRequest,
+            com.google.longrunning.Operation>
+        getBatchDeleteDocumentsMethod;
+    if ((getBatchDeleteDocumentsMethod = DocumentServiceGrpc.getBatchDeleteDocumentsMethod)
+        == null) {
+      synchronized (DocumentServiceGrpc.class) {
+        if ((getBatchDeleteDocumentsMethod = DocumentServiceGrpc.getBatchDeleteDocumentsMethod)
+            == null) {
+          DocumentServiceGrpc.getBatchDeleteDocumentsMethod =
+              getBatchDeleteDocumentsMethod =
+                  io.grpc.MethodDescriptor
+                      .
+                          newBuilder()
+                      .setType(io.grpc.MethodDescriptor.MethodType.UNARY)
+                      .setFullMethodName(
+                          generateFullMethodName(SERVICE_NAME, "BatchDeleteDocuments"))
+                      .setSampledToLocalTracing(true)
+                      .setRequestMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsRequest
+                                  .getDefaultInstance()))
+                      .setResponseMarshaller(
+                          io.grpc.protobuf.ProtoUtils.marshaller(
+                              com.google.longrunning.Operation.getDefaultInstance()))
+                      .setSchemaDescriptor(
+                          new DocumentServiceMethodDescriptorSupplier("BatchDeleteDocuments"))
+                      .build();
+        }
+      }
+    }
+    return getBatchDeleteDocumentsMethod;
+  }
+
   private static volatile io.grpc.MethodDescriptor<
           com.google.cloud.documentai.v1beta3.GetDatasetSchemaRequest,
           com.google.cloud.documentai.v1beta3.DatasetSchema>
@@ -241,6 +383,49 @@ default void updateDataset(
           getUpdateDatasetMethod(), responseObserver);
     }
 
+    /**
+     *
+     *
+     * 
+     * Import documents into a dataset.
+     * 

+     */
+    default void importDocuments(
+        com.google.cloud.documentai.v1beta3.ImportDocumentsRequest request,
+        io.grpc.stub.StreamObserver responseObserver) {
+      io.grpc.stub.ServerCalls.asyncUnimplementedUnaryCall(
+          getImportDocumentsMethod(), responseObserver);
+    }
+
+    /**
+     *
+     *
+     * 
+     * Returns relevant fields present in the requested document.
+     * 

+     */
+    default void getDocument(
+        com.google.cloud.documentai.v1beta3.GetDocumentRequest request,
+        io.grpc.stub.StreamObserver
+            responseObserver) {
+      io.grpc.stub.ServerCalls.asyncUnimplementedUnaryCall(
+          getGetDocumentMethod(), responseObserver);
+    }
+
+    /**
+     *
+     *
+     * 
+     * Deletes a set of documents.
+     * 

+     */
+    default void batchDeleteDocuments(
+        com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsRequest request,
+        io.grpc.stub.StreamObserver responseObserver) {
+      io.grpc.stub.ServerCalls.asyncUnimplementedUnaryCall(
+          getBatchDeleteDocumentsMethod(), responseObserver);
+    }
+
     /**
      *
      *
@@ -322,6 +507,55 @@ public void updateDataset(
           responseObserver);
     }
 
+    /**
+     *
+     *
+     * 
+     * Import documents into a dataset.
+     * 

+     */
+    public void importDocuments(
+        com.google.cloud.documentai.v1beta3.ImportDocumentsRequest request,
+        io.grpc.stub.StreamObserver responseObserver) {
+      io.grpc.stub.ClientCalls.asyncUnaryCall(
+          getChannel().newCall(getImportDocumentsMethod(), getCallOptions()),
+          request,
+          responseObserver);
+    }
+
+    /**
+     *
+     *
+     * 
+     * Returns relevant fields present in the requested document.
+     * 

+     */
+    public void getDocument(
+        com.google.cloud.documentai.v1beta3.GetDocumentRequest request,
+        io.grpc.stub.StreamObserver
+            responseObserver) {
+      io.grpc.stub.ClientCalls.asyncUnaryCall(
+          getChannel().newCall(getGetDocumentMethod(), getCallOptions()),
+          request,
+          responseObserver);
+    }
+
+    /**
+     *
+     *
+     * 
+     * Deletes a set of documents.
+     * 

+     */
+    public void batchDeleteDocuments(
+        com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsRequest request,
+        io.grpc.stub.StreamObserver responseObserver) {
+      io.grpc.stub.ClientCalls.asyncUnaryCall(
+          getChannel().newCall(getBatchDeleteDocumentsMethod(), getCallOptions()),
+          request,
+          responseObserver);
+    }
+
     /**
      *
      *
@@ -389,6 +623,45 @@ public com.google.longrunning.Operation updateDataset(
           getChannel(), getUpdateDatasetMethod(), getCallOptions(), request);
     }
 
+    /**
+     *
+     *
+     * 
+     * Import documents into a dataset.
+     * 

+     */
+    public com.google.longrunning.Operation importDocuments(
+        com.google.cloud.documentai.v1beta3.ImportDocumentsRequest request) {
+      return io.grpc.stub.ClientCalls.blockingUnaryCall(
+          getChannel(), getImportDocumentsMethod(), getCallOptions(), request);
+    }
+
+    /**
+     *
+     *
+     * 
+     * Returns relevant fields present in the requested document.
+     * 

+     */
+    public com.google.cloud.documentai.v1beta3.GetDocumentResponse getDocument(
+        com.google.cloud.documentai.v1beta3.GetDocumentRequest request) {
+      return io.grpc.stub.ClientCalls.blockingUnaryCall(
+          getChannel(), getGetDocumentMethod(), getCallOptions(), request);
+    }
+
+    /**
+     *
+     *
+     * 
+     * Deletes a set of documents.
+     * 

+     */
+    public com.google.longrunning.Operation batchDeleteDocuments(
+        com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsRequest request) {
+      return io.grpc.stub.ClientCalls.blockingUnaryCall(
+          getChannel(), getBatchDeleteDocumentsMethod(), getCallOptions(), request);
+    }
+
     /**
      *
      *
@@ -448,6 +721,47 @@ protected DocumentServiceFutureStub build(
           getChannel().newCall(getUpdateDatasetMethod(), getCallOptions()), request);
     }
 
+    /**
+     *
+     *
+     * 
+     * Import documents into a dataset.
+     * 

+     */
+    public com.google.common.util.concurrent.ListenableFuture
+        importDocuments(com.google.cloud.documentai.v1beta3.ImportDocumentsRequest request) {
+      return io.grpc.stub.ClientCalls.futureUnaryCall(
+          getChannel().newCall(getImportDocumentsMethod(), getCallOptions()), request);
+    }
+
+    /**
+     *
+     *
+     * 
+     * Returns relevant fields present in the requested document.
+     * 

+     */
+    public com.google.common.util.concurrent.ListenableFuture<
+            com.google.cloud.documentai.v1beta3.GetDocumentResponse>
+        getDocument(com.google.cloud.documentai.v1beta3.GetDocumentRequest request) {
+      return io.grpc.stub.ClientCalls.futureUnaryCall(
+          getChannel().newCall(getGetDocumentMethod(), getCallOptions()), request);
+    }
+
+    /**
+     *
+     *
+     * 
+     * Deletes a set of documents.
+     * 

+     */
+    public com.google.common.util.concurrent.ListenableFuture
+        batchDeleteDocuments(
+            com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsRequest request) {
+      return io.grpc.stub.ClientCalls.futureUnaryCall(
+          getChannel().newCall(getBatchDeleteDocumentsMethod(), getCallOptions()), request);
+    }
+
     /**
      *
      *
@@ -479,8 +793,11 @@ protected DocumentServiceFutureStub build(
   }
 
   private static final int METHODID_UPDATE_DATASET = 0;
-  private static final int METHODID_GET_DATASET_SCHEMA = 1;
-  private static final int METHODID_UPDATE_DATASET_SCHEMA = 2;
+  private static final int METHODID_IMPORT_DOCUMENTS = 1;
+  private static final int METHODID_GET_DOCUMENT = 2;
+  private static final int METHODID_BATCH_DELETE_DOCUMENTS = 3;
+  private static final int METHODID_GET_DATASET_SCHEMA = 4;
+  private static final int METHODID_UPDATE_DATASET_SCHEMA = 5;
 
   private static final class MethodHandlers
       implements io.grpc.stub.ServerCalls.UnaryMethod,
@@ -504,6 +821,22 @@ public void invoke(Req request, io.grpc.stub.StreamObserver responseObserv
               (com.google.cloud.documentai.v1beta3.UpdateDatasetRequest) request,
               (io.grpc.stub.StreamObserver) responseObserver);
           break;
+        case METHODID_IMPORT_DOCUMENTS:
+          serviceImpl.importDocuments(
+              (com.google.cloud.documentai.v1beta3.ImportDocumentsRequest) request,
+              (io.grpc.stub.StreamObserver) responseObserver);
+          break;
+        case METHODID_GET_DOCUMENT:
+          serviceImpl.getDocument(
+              (com.google.cloud.documentai.v1beta3.GetDocumentRequest) request,
+              (io.grpc.stub.StreamObserver)
+                  responseObserver);
+          break;
+        case METHODID_BATCH_DELETE_DOCUMENTS:
+          serviceImpl.batchDeleteDocuments(
+              (com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsRequest) request,
+              (io.grpc.stub.StreamObserver) responseObserver);
+          break;
         case METHODID_GET_DATASET_SCHEMA:
           serviceImpl.getDatasetSchema(
               (com.google.cloud.documentai.v1beta3.GetDatasetSchemaRequest) request,
@@ -540,6 +873,25 @@ public static final io.grpc.ServerServiceDefinition bindService(AsyncService ser
                 new MethodHandlers<
                     com.google.cloud.documentai.v1beta3.UpdateDatasetRequest,
                     com.google.longrunning.Operation>(service, METHODID_UPDATE_DATASET)))
+        .addMethod(
+            getImportDocumentsMethod(),
+            io.grpc.stub.ServerCalls.asyncUnaryCall(
+                new MethodHandlers<
+                    com.google.cloud.documentai.v1beta3.ImportDocumentsRequest,
+                    com.google.longrunning.Operation>(service, METHODID_IMPORT_DOCUMENTS)))
+        .addMethod(
+            getGetDocumentMethod(),
+            io.grpc.stub.ServerCalls.asyncUnaryCall(
+                new MethodHandlers<
+                    com.google.cloud.documentai.v1beta3.GetDocumentRequest,
+                    com.google.cloud.documentai.v1beta3.GetDocumentResponse>(
+                    service, METHODID_GET_DOCUMENT)))
+        .addMethod(
+            getBatchDeleteDocumentsMethod(),
+            io.grpc.stub.ServerCalls.asyncUnaryCall(
+                new MethodHandlers<
+                    com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsRequest,
+                    com.google.longrunning.Operation>(service, METHODID_BATCH_DELETE_DOCUMENTS)))
         .addMethod(
             getGetDatasetSchemaMethod(),
             io.grpc.stub.ServerCalls.asyncUnaryCall(
@@ -606,6 +958,9 @@ public static io.grpc.ServiceDescriptor getServiceDescriptor() {
                   io.grpc.ServiceDescriptor.newBuilder(SERVICE_NAME)
                       .setSchemaDescriptor(new DocumentServiceFileDescriptorSupplier())
                       .addMethod(getUpdateDatasetMethod())
+                      .addMethod(getImportDocumentsMethod())
+                      .addMethod(getGetDocumentMethod())
+                      .addMethod(getBatchDeleteDocumentsMethod())
                       .addMethod(getGetDatasetSchemaMethod())
                       .addMethod(getUpdateDatasetSchemaMethod())
                       .build();
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1/src/main/java/com/google/cloud/documentai/v1/BatchProcessRequest.java b/java-document-ai/proto-google-cloud-document-ai-v1/src/main/java/com/google/cloud/documentai/v1/BatchProcessRequest.java
index b79840a97c2a..bfba9edd0a9c 100644
--- a/java-document-ai/proto-google-cloud-document-ai-v1/src/main/java/com/google/cloud/documentai/v1/BatchProcessRequest.java
+++ b/java-document-ai/proto-google-cloud-document-ai-v1/src/main/java/com/google/cloud/documentai/v1/BatchProcessRequest.java
@@ -261,6 +261,56 @@ public boolean getSkipHumanReview() {
     return skipHumanReview_;
   }
 
+  public static final int PROCESS_OPTIONS_FIELD_NUMBER = 7;
+  private com.google.cloud.documentai.v1.ProcessOptions processOptions_;
+  /**
+   *
+   *
+   * 
+   * Inference-time options for the process API
+   * 

+   *
+   * .google.cloud.documentai.v1.ProcessOptions process_options = 7;
+   *
+   * @return Whether the processOptions field is set.
+   */
+  @java.lang.Override
+  public boolean hasProcessOptions() {
+    return processOptions_ != null;
+  }
+  /**
+   *
+   *
+   * 
+   * Inference-time options for the process API
+   * 

+   *
+   * .google.cloud.documentai.v1.ProcessOptions process_options = 7;
+   *
+   * @return The processOptions.
+   */
+  @java.lang.Override
+  public com.google.cloud.documentai.v1.ProcessOptions getProcessOptions() {
+    return processOptions_ == null
+        ? com.google.cloud.documentai.v1.ProcessOptions.getDefaultInstance()
+        : processOptions_;
+  }
+  /**
+   *
+   *
+   * 
+   * Inference-time options for the process API
+   * 

+   *
+   * .google.cloud.documentai.v1.ProcessOptions process_options = 7;
+   */
+  @java.lang.Override
+  public com.google.cloud.documentai.v1.ProcessOptionsOrBuilder getProcessOptionsOrBuilder() {
+    return processOptions_ == null
+        ? com.google.cloud.documentai.v1.ProcessOptions.getDefaultInstance()
+        : processOptions_;
+  }
+
   private byte memoizedIsInitialized = -1;
 
   @java.lang.Override
@@ -287,6 +337,9 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (documentOutputConfig_ != null) {
       output.writeMessage(6, getDocumentOutputConfig());
     }
+    if (processOptions_ != null) {
+      output.writeMessage(7, getProcessOptions());
+    }
     getUnknownFields().writeTo(output);
   }
 
@@ -309,6 +362,9 @@ public int getSerializedSize() {
       size +=
           com.google.protobuf.CodedOutputStream.computeMessageSize(6, getDocumentOutputConfig());
     }
+    if (processOptions_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(7, getProcessOptions());
+    }
     size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
@@ -335,6 +391,10 @@ public boolean equals(final java.lang.Object obj) {
       if (!getDocumentOutputConfig().equals(other.getDocumentOutputConfig())) return false;
     }
     if (getSkipHumanReview() != other.getSkipHumanReview()) return false;
+    if (hasProcessOptions() != other.hasProcessOptions()) return false;
+    if (hasProcessOptions()) {
+      if (!getProcessOptions().equals(other.getProcessOptions())) return false;
+    }
     if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
@@ -358,6 +418,10 @@ public int hashCode() {
     }
     hash = (37 * hash) + SKIP_HUMAN_REVIEW_FIELD_NUMBER;
     hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getSkipHumanReview());
+    if (hasProcessOptions()) {
+      hash = (37 * hash) + PROCESS_OPTIONS_FIELD_NUMBER;
+      hash = (53 * hash) + getProcessOptions().hashCode();
+    }
     hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
@@ -510,6 +574,11 @@ public Builder clear() {
         documentOutputConfigBuilder_ = null;
       }
       skipHumanReview_ = false;
+      processOptions_ = null;
+      if (processOptionsBuilder_ != null) {
+        processOptionsBuilder_.dispose();
+        processOptionsBuilder_ = null;
+      }
       return this;
     }
 
@@ -562,6 +631,10 @@ private void buildPartial0(com.google.cloud.documentai.v1.BatchProcessRequest re
       if (((from_bitField0_ & 0x00000008) != 0)) {
         result.skipHumanReview_ = skipHumanReview_;
       }
+      if (((from_bitField0_ & 0x00000010) != 0)) {
+        result.processOptions_ =
+            processOptionsBuilder_ == null ? processOptions_ : processOptionsBuilder_.build();
+      }
     }
 
     @java.lang.Override
@@ -624,6 +697,9 @@ public Builder mergeFrom(com.google.cloud.documentai.v1.BatchProcessRequest othe
       if (other.getSkipHumanReview() != false) {
         setSkipHumanReview(other.getSkipHumanReview());
       }
+      if (other.hasProcessOptions()) {
+        mergeProcessOptions(other.getProcessOptions());
+      }
       this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
@@ -675,6 +751,12 @@ public Builder mergeFrom(
                 bitField0_ |= 0x00000004;
                 break;
               } // case 50
+            case 58:
+              {
+                input.readMessage(getProcessOptionsFieldBuilder().getBuilder(), extensionRegistry);
+                bitField0_ |= 0x00000010;
+                break;
+              } // case 58
             default:
               {
                 if (!super.parseUnknownField(input, extensionRegistry, tag)) {
@@ -1305,6 +1387,191 @@ public Builder clearSkipHumanReview() {
       return this;
     }
 
+    private com.google.cloud.documentai.v1.ProcessOptions processOptions_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.documentai.v1.ProcessOptions,
+            com.google.cloud.documentai.v1.ProcessOptions.Builder,
+            com.google.cloud.documentai.v1.ProcessOptionsOrBuilder>
+        processOptionsBuilder_;
+    /**
+     *
+     *
+     * 
+     * Inference-time options for the process API
+     * 

+     *
+     * .google.cloud.documentai.v1.ProcessOptions process_options = 7;
+     *
+     * @return Whether the processOptions field is set.
+     */
+    public boolean hasProcessOptions() {
+      return ((bitField0_ & 0x00000010) != 0);
+    }
+    /**
+     *
+     *
+     * 
+     * Inference-time options for the process API
+     * 

+     *
+     * .google.cloud.documentai.v1.ProcessOptions process_options = 7;
+     *
+     * @return The processOptions.
+     */
+    public com.google.cloud.documentai.v1.ProcessOptions getProcessOptions() {
+      if (processOptionsBuilder_ == null) {
+        return processOptions_ == null
+            ? com.google.cloud.documentai.v1.ProcessOptions.getDefaultInstance()
+            : processOptions_;
+      } else {
+        return processOptionsBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Inference-time options for the process API
+     * 

+     *
+     * .google.cloud.documentai.v1.ProcessOptions process_options = 7;
+     */
+    public Builder setProcessOptions(com.google.cloud.documentai.v1.ProcessOptions value) {
+      if (processOptionsBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        processOptions_ = value;
+      } else {
+        processOptionsBuilder_.setMessage(value);
+      }
+      bitField0_ |= 0x00000010;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Inference-time options for the process API
+     * 

+     *
+     * .google.cloud.documentai.v1.ProcessOptions process_options = 7;
+     */
+    public Builder setProcessOptions(
+        com.google.cloud.documentai.v1.ProcessOptions.Builder builderForValue) {
+      if (processOptionsBuilder_ == null) {
+        processOptions_ = builderForValue.build();
+      } else {
+        processOptionsBuilder_.setMessage(builderForValue.build());
+      }
+      bitField0_ |= 0x00000010;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Inference-time options for the process API
+     * 

+     *
+     * .google.cloud.documentai.v1.ProcessOptions process_options = 7;
+     */
+    public Builder mergeProcessOptions(com.google.cloud.documentai.v1.ProcessOptions value) {
+      if (processOptionsBuilder_ == null) {
+        if (((bitField0_ & 0x00000010) != 0)
+            && processOptions_ != null
+            && processOptions_
+                != com.google.cloud.documentai.v1.ProcessOptions.getDefaultInstance()) {
+          getProcessOptionsBuilder().mergeFrom(value);
+        } else {
+          processOptions_ = value;
+        }
+      } else {
+        processOptionsBuilder_.mergeFrom(value);
+      }
+      bitField0_ |= 0x00000010;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Inference-time options for the process API
+     * 

+     *
+     * .google.cloud.documentai.v1.ProcessOptions process_options = 7;
+     */
+    public Builder clearProcessOptions() {
+      bitField0_ = (bitField0_ & ~0x00000010);
+      processOptions_ = null;
+      if (processOptionsBuilder_ != null) {
+        processOptionsBuilder_.dispose();
+        processOptionsBuilder_ = null;
+      }
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Inference-time options for the process API
+     * 

+     *
+     * .google.cloud.documentai.v1.ProcessOptions process_options = 7;
+     */
+    public com.google.cloud.documentai.v1.ProcessOptions.Builder getProcessOptionsBuilder() {
+      bitField0_ |= 0x00000010;
+      onChanged();
+      return getProcessOptionsFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * 
+     * Inference-time options for the process API
+     * 

+     *
+     * .google.cloud.documentai.v1.ProcessOptions process_options = 7;
+     */
+    public com.google.cloud.documentai.v1.ProcessOptionsOrBuilder getProcessOptionsOrBuilder() {
+      if (processOptionsBuilder_ != null) {
+        return processOptionsBuilder_.getMessageOrBuilder();
+      } else {
+        return processOptions_ == null
+            ? com.google.cloud.documentai.v1.ProcessOptions.getDefaultInstance()
+            : processOptions_;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Inference-time options for the process API
+     * 

+     *
+     * .google.cloud.documentai.v1.ProcessOptions process_options = 7;
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.documentai.v1.ProcessOptions,
+            com.google.cloud.documentai.v1.ProcessOptions.Builder,
+            com.google.cloud.documentai.v1.ProcessOptionsOrBuilder>
+        getProcessOptionsFieldBuilder() {
+      if (processOptionsBuilder_ == null) {
+        processOptionsBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.documentai.v1.ProcessOptions,
+                com.google.cloud.documentai.v1.ProcessOptions.Builder,
+                com.google.cloud.documentai.v1.ProcessOptionsOrBuilder>(
+                getProcessOptions(), getParentForChildren(), isClean());
+        processOptions_ = null;
+      }
+      return processOptionsBuilder_;
+    }
+
     @java.lang.Override
     public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
       return super.setUnknownFields(unknownFields);
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1/src/main/java/com/google/cloud/documentai/v1/BatchProcessRequestOrBuilder.java b/java-document-ai/proto-google-cloud-document-ai-v1/src/main/java/com/google/cloud/documentai/v1/BatchProcessRequestOrBuilder.java
index 234086b43bfc..2ec9be3228b4 100644
--- a/java-document-ai/proto-google-cloud-document-ai-v1/src/main/java/com/google/cloud/documentai/v1/BatchProcessRequestOrBuilder.java
+++ b/java-document-ai/proto-google-cloud-document-ai-v1/src/main/java/com/google/cloud/documentai/v1/BatchProcessRequestOrBuilder.java
@@ -157,4 +157,39 @@ public interface BatchProcessRequestOrBuilder
    * @return The skipHumanReview.
    */
   boolean getSkipHumanReview();
+
+  /**
+   *
+   *
+   * 
+   * Inference-time options for the process API
+   * 

+   *
+   * .google.cloud.documentai.v1.ProcessOptions process_options = 7;
+   *
+   * @return Whether the processOptions field is set.
+   */
+  boolean hasProcessOptions();
+  /**
+   *
+   *
+   * 
+   * Inference-time options for the process API
+   * 

+   *
+   * .google.cloud.documentai.v1.ProcessOptions process_options = 7;
+   *
+   * @return The processOptions.
+   */
+  com.google.cloud.documentai.v1.ProcessOptions getProcessOptions();
+  /**
+   *
+   *
+   * 
+   * Inference-time options for the process API
+   * 

+   *
+   * .google.cloud.documentai.v1.ProcessOptions process_options = 7;
+   */
+  com.google.cloud.documentai.v1.ProcessOptionsOrBuilder getProcessOptionsOrBuilder();
 }
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1/src/main/java/com/google/cloud/documentai/v1/DocumentAiProcessor.java b/java-document-ai/proto-google-cloud-document-ai-v1/src/main/java/com/google/cloud/documentai/v1/DocumentAiProcessor.java
index eb133d5d1863..97f7a6c3407e 100644
--- a/java-document-ai/proto-google-cloud-document-ai-v1/src/main/java/com/google/cloud/documentai/v1/DocumentAiProcessor.java
+++ b/java-document-ai/proto-google-cloud-document-ai-v1/src/main/java/com/google/cloud/documentai/v1/DocumentAiProcessor.java
@@ -54,7 +54,7 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
           + "source.proto\0320google/cloud/documentai/v1"
           + "/document_schema.proto\032+google/cloud/doc"
           + "umentai/v1/evaluation.proto\032\037google/prot"
-          + "obuf/timestamp.proto\"\260\007\n\020ProcessorVersio"
+          + "obuf/timestamp.proto\"\266\007\n\020ProcessorVersio"
           + "n\022\014\n\004name\030\001 \001(\t\022\024\n\014display_name\030\002 \001(\t\022C\n"
           + "\017document_schema\030\014 \001(\0132*.google.cloud.do"
           + "cumentai.v1.DocumentSchema\022A\n\005state\030\006 \001("
@@ -63,41 +63,41 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
           + "gle.protobuf.Timestamp\022J\n\021latest_evaluat"
           + "ion\030\010 \001(\0132/.google.cloud.documentai.v1.E"
           + "valuationReference\022\024\n\014kms_key_name\030\t \001(\t"
-          + "\022\034\n\024kms_key_version_name\030\n \001(\t\022\026\n\016google"
-          + "_managed\030\013 \001(\010\022V\n\020deprecation_info\030\r \001(\013"
-          + "2<.google.cloud.documentai.v1.ProcessorV"
-          + "ersion.DeprecationInfo\032\237\001\n\017DeprecationIn"
-          + "fo\0224\n\020deprecation_time\030\001 \001(\0132\032.google.pr"
-          + "otobuf.Timestamp\022V\n\035replacement_processo"
-          + "r_version\030\002 \001(\tB/\372A,\n*documentai.googlea"
-          + "pis.com/ProcessorVersion\"\223\001\n\005State\022\025\n\021ST"
-          + "ATE_UNSPECIFIED\020\000\022\014\n\010DEPLOYED\020\001\022\r\n\tDEPLO"
-          + "YING\020\002\022\016\n\nUNDEPLOYED\020\003\022\017\n\013UNDEPLOYING\020\004\022"
-          + "\014\n\010CREATING\020\005\022\014\n\010DELETING\020\006\022\n\n\006FAILED\020\007\022"
-          + "\r\n\tIMPORTING\020\010:\226\001\352A\222\001\n*documentai.google"
-          + "apis.com/ProcessorVersion\022dprojects/{pro"
-          + "ject}/locations/{location}/processors/{p"
-          + "rocessor}/processorVersions/{processor_v"
-          + "ersion}\"\254\004\n\tProcessor\022\023\n\004name\030\001 \001(\tB\005\342A\002"
-          + "\005\003\022\014\n\004type\030\002 \001(\t\022\024\n\014display_name\030\003 \001(\t\022@"
-          + "\n\005state\030\004 \001(\0162+.google.cloud.documentai."
-          + "v1.Processor.StateB\004\342A\001\003\022R\n\031default_proc"
-          + "essor_version\030\t \001(\tB/\372A,\n*documentai.goo"
-          + "gleapis.com/ProcessorVersion\022\037\n\020process_"
-          + "endpoint\030\006 \001(\tB\005\342A\002\003\005\022/\n\013create_time\030\007 \001"
-          + "(\0132\032.google.protobuf.Timestamp\022\024\n\014kms_ke"
-          + "y_name\030\010 \001(\t\"~\n\005State\022\025\n\021STATE_UNSPECIFI"
-          + "ED\020\000\022\013\n\007ENABLED\020\001\022\014\n\010DISABLED\020\002\022\014\n\010ENABL"
-          + "ING\020\003\022\r\n\tDISABLING\020\004\022\014\n\010CREATING\020\005\022\n\n\006FA"
-          + "ILED\020\006\022\014\n\010DELETING\020\007:h\352Ae\n#documentai.go"
-          + "ogleapis.com/Processor\022>projects/{projec"
-          + "t}/locations/{location}/processors/{proc"
-          + "essor}B\321\001\n\036com.google.cloud.documentai.v"
-          + "1B\023DocumentAiProcessorP\001Z>cloud.google.c"
-          + "om/go/documentai/apiv1/documentaipb;docu"
-          + "mentaipb\252\002\032Google.Cloud.DocumentAI.V1\312\002\032"
-          + "Google\\Cloud\\DocumentAI\\V1\352\002\035Google::Clo"
-          + "ud::DocumentAI::V1b\006proto3"
+          + "\022\034\n\024kms_key_version_name\030\n \001(\t\022\034\n\016google"
+          + "_managed\030\013 \001(\010B\004\342A\001\003\022V\n\020deprecation_info"
+          + "\030\r \001(\0132<.google.cloud.documentai.v1.Proc"
+          + "essorVersion.DeprecationInfo\032\237\001\n\017Depreca"
+          + "tionInfo\0224\n\020deprecation_time\030\001 \001(\0132\032.goo"
+          + "gle.protobuf.Timestamp\022V\n\035replacement_pr"
+          + "ocessor_version\030\002 \001(\tB/\372A,\n*documentai.g"
+          + "oogleapis.com/ProcessorVersion\"\223\001\n\005State"
+          + "\022\025\n\021STATE_UNSPECIFIED\020\000\022\014\n\010DEPLOYED\020\001\022\r\n"
+          + "\tDEPLOYING\020\002\022\016\n\nUNDEPLOYED\020\003\022\017\n\013UNDEPLOY"
+          + "ING\020\004\022\014\n\010CREATING\020\005\022\014\n\010DELETING\020\006\022\n\n\006FAI"
+          + "LED\020\007\022\r\n\tIMPORTING\020\010:\226\001\352A\222\001\n*documentai."
+          + "googleapis.com/ProcessorVersion\022dproject"
+          + "s/{project}/locations/{location}/process"
+          + "ors/{processor}/processorVersions/{proce"
+          + "ssor_version}\"\254\004\n\tProcessor\022\023\n\004name\030\001 \001("
+          + "\tB\005\342A\002\005\003\022\014\n\004type\030\002 \001(\t\022\024\n\014display_name\030\003"
+          + " \001(\t\022@\n\005state\030\004 \001(\0162+.google.cloud.docum"
+          + "entai.v1.Processor.StateB\004\342A\001\003\022R\n\031defaul"
+          + "t_processor_version\030\t \001(\tB/\372A,\n*document"
+          + "ai.googleapis.com/ProcessorVersion\022\037\n\020pr"
+          + "ocess_endpoint\030\006 \001(\tB\005\342A\002\003\005\022/\n\013create_ti"
+          + "me\030\007 \001(\0132\032.google.protobuf.Timestamp\022\024\n\014"
+          + "kms_key_name\030\010 \001(\t\"~\n\005State\022\025\n\021STATE_UNS"
+          + "PECIFIED\020\000\022\013\n\007ENABLED\020\001\022\014\n\010DISABLED\020\002\022\014\n"
+          + "\010ENABLING\020\003\022\r\n\tDISABLING\020\004\022\014\n\010CREATING\020\005"
+          + "\022\n\n\006FAILED\020\006\022\014\n\010DELETING\020\007:h\352Ae\n#documen"
+          + "tai.googleapis.com/Processor\022>projects/{"
+          + "project}/locations/{location}/processors"
+          + "/{processor}B\321\001\n\036com.google.cloud.docume"
+          + "ntai.v1B\023DocumentAiProcessorP\001Z>cloud.go"
+          + "ogle.com/go/documentai/apiv1/documentaip"
+          + "b;documentaipb\252\002\032Google.Cloud.DocumentAI"
+          + ".V1\312\002\032Google\\Cloud\\DocumentAI\\V1\352\002\035Googl"
+          + "e::Cloud::DocumentAI::V1b\006proto3"
     };
     descriptor =
         com.google.protobuf.Descriptors.FileDescriptor.internalBuildGeneratedFileFrom(
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1/src/main/java/com/google/cloud/documentai/v1/DocumentAiProcessorService.java b/java-document-ai/proto-google-cloud-document-ai-v1/src/main/java/com/google/cloud/documentai/v1/DocumentAiProcessorService.java
index 46f599a73fcb..e79793318c94 100644
--- a/java-document-ai/proto-google-cloud-document-ai-v1/src/main/java/com/google/cloud/documentai/v1/DocumentAiProcessorService.java
+++ b/java-document-ai/proto-google-cloud-document-ai-v1/src/main/java/com/google/cloud/documentai/v1/DocumentAiProcessorService.java
@@ -27,6 +27,10 @@ public static void registerAllExtensions(com.google.protobuf.ExtensionRegistry r
     registerAllExtensions((com.google.protobuf.ExtensionRegistryLite) registry);
   }
 
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_documentai_v1_ProcessOptions_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_documentai_v1_ProcessOptions_fieldAccessorTable;
   static final com.google.protobuf.Descriptors.Descriptor
       internal_static_google_cloud_documentai_v1_ProcessRequest_descriptor;
   static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
@@ -187,6 +191,10 @@ public static void registerAllExtensions(com.google.protobuf.ExtensionRegistry r
       internal_static_google_cloud_documentai_v1_TrainProcessorVersionRequest_InputData_descriptor;
   static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
       internal_static_google_cloud_documentai_v1_TrainProcessorVersionRequest_InputData_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_documentai_v1_TrainProcessorVersionRequest_CustomDocumentExtractionOptions_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_documentai_v1_TrainProcessorVersionRequest_CustomDocumentExtractionOptions_fieldAccessorTable;
   static final com.google.protobuf.Descriptors.Descriptor
       internal_static_google_cloud_documentai_v1_TrainProcessorVersionResponse_descriptor;
   static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
@@ -261,29 +269,36 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
           + "tions.proto\032\033google/protobuf/empty.proto"
           + "\032 google/protobuf/field_mask.proto\032\037goog"
           + "le/protobuf/timestamp.proto\032\027google/rpc/"
-          + "status.proto\"\201\002\n\016ProcessRequest\022?\n\017inlin"
-          + "e_document\030\004 \001(\0132$.google.cloud.document"
-          + "ai.v1.DocumentH\000\022?\n\014raw_document\030\005 \001(\0132\'"
-          + ".google.cloud.documentai.v1.RawDocumentH"
-          + "\000\022\030\n\004name\030\001 \001(\tB\n\342A\001\002\372A\003\n\001*\022\031\n\021skip_huma"
-          + "n_review\030\003 \001(\010\022.\n\nfield_mask\030\006 \001(\0132\032.goo"
-          + "gle.protobuf.FieldMaskB\010\n\006source\"\356\001\n\021Hum"
-          + "anReviewStatus\022B\n\005state\030\001 \001(\01623.google.c"
-          + "loud.documentai.v1.HumanReviewStatus.Sta"
-          + "te\022\025\n\rstate_message\030\002 \001(\t\022\036\n\026human_revie"
-          + "w_operation\030\003 \001(\t\"^\n\005State\022\025\n\021STATE_UNSP"
-          + "ECIFIED\020\000\022\013\n\007SKIPPED\020\001\022\025\n\021VALIDATION_PAS"
-          + "SED\020\002\022\017\n\013IN_PROGRESS\020\003\022\t\n\005ERROR\020\004\"\225\001\n\017Pr"
-          + "ocessResponse\0226\n\010document\030\001 \001(\0132$.google"
-          + ".cloud.documentai.v1.Document\022J\n\023human_r"
-          + "eview_status\030\003 \001(\0132-.google.cloud.docume"
-          + "ntai.v1.HumanReviewStatus\"\354\001\n\023BatchProce"
-          + "ssRequest\022\030\n\004name\030\001 \001(\tB\n\342A\001\002\372A\003\n\001*\022N\n\017i"
-          + "nput_documents\030\005 \001(\01325.google.cloud.docu"
-          + "mentai.v1.BatchDocumentsInputConfig\022P\n\026d"
-          + "ocument_output_config\030\006 \001(\01320.google.clo"
-          + "ud.documentai.v1.DocumentOutputConfig\022\031\n"
-          + "\021skip_human_review\030\004 \001(\010\"\026\n\024BatchProcess"
+          + "status.proto\"K\n\016ProcessOptions\0229\n\nocr_co"
+          + "nfig\030\001 \001(\0132%.google.cloud.documentai.v1."
+          + "OcrConfig\"\207\003\n\016ProcessRequest\022?\n\017inline_d"
+          + "ocument\030\004 \001(\0132$.google.cloud.documentai."
+          + "v1.DocumentH\000\022?\n\014raw_document\030\005 \001(\0132\'.go"
+          + "ogle.cloud.documentai.v1.RawDocumentH\000\022?"
+          + "\n\014gcs_document\030\010 \001(\0132\'.google.cloud.docu"
+          + "mentai.v1.GcsDocumentH\000\022\030\n\004name\030\001 \001(\tB\n\342"
+          + "A\001\002\372A\003\n\001*\022\031\n\021skip_human_review\030\003 \001(\010\022.\n\n"
+          + "field_mask\030\006 \001(\0132\032.google.protobuf.Field"
+          + "Mask\022C\n\017process_options\030\007 \001(\0132*.google.c"
+          + "loud.documentai.v1.ProcessOptionsB\010\n\006sou"
+          + "rce\"\356\001\n\021HumanReviewStatus\022B\n\005state\030\001 \001(\016"
+          + "23.google.cloud.documentai.v1.HumanRevie"
+          + "wStatus.State\022\025\n\rstate_message\030\002 \001(\t\022\036\n\026"
+          + "human_review_operation\030\003 \001(\t\"^\n\005State\022\025\n"
+          + "\021STATE_UNSPECIFIED\020\000\022\013\n\007SKIPPED\020\001\022\025\n\021VAL"
+          + "IDATION_PASSED\020\002\022\017\n\013IN_PROGRESS\020\003\022\t\n\005ERR"
+          + "OR\020\004\"\225\001\n\017ProcessResponse\0226\n\010document\030\001 \001"
+          + "(\0132$.google.cloud.documentai.v1.Document"
+          + "\022J\n\023human_review_status\030\003 \001(\0132-.google.c"
+          + "loud.documentai.v1.HumanReviewStatus\"\261\002\n"
+          + "\023BatchProcessRequest\022\030\n\004name\030\001 \001(\tB\n\342A\001\002"
+          + "\372A\003\n\001*\022N\n\017input_documents\030\005 \001(\01325.google"
+          + ".cloud.documentai.v1.BatchDocumentsInput"
+          + "Config\022P\n\026document_output_config\030\006 \001(\01320"
+          + ".google.cloud.documentai.v1.DocumentOutp"
+          + "utConfig\022\031\n\021skip_human_review\030\004 \001(\010\022C\n\017p"
+          + "rocess_options\030\007 \001(\0132*.google.cloud.docu"
+          + "mentai.v1.ProcessOptions\"\026\n\024BatchProcess"
           + "Response\"\377\004\n\024BatchProcessMetadata\022E\n\005sta"
           + "te\030\001 \001(\01626.google.cloud.documentai.v1.Ba"
           + "tchProcessMetadata.State\022\025\n\rstate_messag"
@@ -377,217 +392,227 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
           + "sponse\"r\n\"SetDefaultProcessorVersionMeta"
           + "data\022L\n\017common_metadata\030\001 \001(\01323.google.c"
           + "loud.documentai.v1.CommonOperationMetada"
-          + "ta\"\252\004\n\034TrainProcessorVersionRequest\022<\n\006p"
-          + "arent\030\001 \001(\tB,\342A\001\002\372A%\n#documentai.googlea"
-          + "pis.com/Processor\022M\n\021processor_version\030\002"
-          + " \001(\0132,.google.cloud.documentai.v1.Proces"
-          + "sorVersionB\004\342A\001\002\022I\n\017document_schema\030\n \001("
-          + "\0132*.google.cloud.documentai.v1.DocumentS"
-          + "chemaB\004\342A\001\001\022\\\n\ninput_data\030\004 \001(\0132B.google"
-          + ".cloud.documentai.v1.TrainProcessorVersi"
-          + "onRequest.InputDataB\004\342A\001\001\022$\n\026base_proces"
-          + "sor_version\030\010 \001(\tB\004\342A\001\001\032\255\001\n\tInputData\022Q\n"
-          + "\022training_documents\030\003 \001(\01325.google.cloud"
-          + ".documentai.v1.BatchDocumentsInputConfig"
-          + "\022M\n\016test_documents\030\004 \001(\01325.google.cloud."
-          + "documentai.v1.BatchDocumentsInputConfig\""
-          + ":\n\035TrainProcessorVersionResponse\022\031\n\021proc"
-          + "essor_version\030\001 \001(\t\"\367\003\n\035TrainProcessorVe"
-          + "rsionMetadata\022L\n\017common_metadata\030\001 \001(\01323"
-          + ".google.cloud.documentai.v1.CommonOperat"
-          + "ionMetadata\022p\n\033training_dataset_validati"
-          + "on\030\002 \001(\0132K.google.cloud.documentai.v1.Tr"
-          + "ainProcessorVersionMetadata.DatasetValid"
-          + "ation\022l\n\027test_dataset_validation\030\003 \001(\0132K"
+          + "ta\"\305\007\n\034TrainProcessorVersionRequest\022\206\001\n\""
+          + "custom_document_extraction_options\030\005 \001(\013"
+          + "2X.google.cloud.documentai.v1.TrainProce"
+          + "ssorVersionRequest.CustomDocumentExtract"
+          + "ionOptionsH\000\022<\n\006parent\030\001 \001(\tB,\342A\001\002\372A%\n#d"
+          + "ocumentai.googleapis.com/Processor\022M\n\021pr"
+          + "ocessor_version\030\002 \001(\0132,.google.cloud.doc"
+          + "umentai.v1.ProcessorVersionB\004\342A\001\002\022I\n\017doc"
+          + "ument_schema\030\n \001(\0132*.google.cloud.docume"
+          + "ntai.v1.DocumentSchemaB\004\342A\001\001\022\\\n\ninput_da"
+          + "ta\030\004 \001(\0132B.google.cloud.documentai.v1.Tr"
+          + "ainProcessorVersionRequest.InputDataB\004\342A"
+          + "\001\001\022$\n\026base_processor_version\030\010 \001(\tB\004\342A\001\001"
+          + "\032\255\001\n\tInputData\022Q\n\022training_documents\030\003 \001"
+          + "(\01325.google.cloud.documentai.v1.BatchDoc"
+          + "umentsInputConfig\022M\n\016test_documents\030\004 \001("
+          + "\01325.google.cloud.documentai.v1.BatchDocu"
+          + "mentsInputConfig\032\374\001\n\037CustomDocumentExtra"
+          + "ctionOptions\022\200\001\n\017training_method\030\003 \001(\0162g"
           + ".google.cloud.documentai.v1.TrainProcess"
-          + "orVersionMetadata.DatasetValidation\032\247\001\n\021"
-          + "DatasetValidation\022\034\n\024document_error_coun"
-          + "t\030\003 \001(\005\022\033\n\023dataset_error_count\030\004 \001(\005\022+\n\017"
-          + "document_errors\030\001 \003(\0132\022.google.rpc.Statu"
-          + "s\022*\n\016dataset_errors\030\002 \003(\0132\022.google.rpc.S"
-          + "tatus\"\217\003\n\025ReviewDocumentRequest\022?\n\017inlin"
-          + "e_document\030\004 \001(\0132$.google.cloud.document"
-          + "ai.v1.DocumentH\000\022Q\n\023human_review_config\030"
-          + "\001 \001(\tB4\342A\001\002\372A-\n+documentai.googleapis.co"
-          + "m/HumanReviewConfig\022 \n\030enable_schema_val"
-          + "idation\030\003 \001(\010\022L\n\010priority\030\005 \001(\0162:.google"
-          + ".cloud.documentai.v1.ReviewDocumentReque"
-          + "st.Priority\022C\n\017document_schema\030\006 \001(\0132*.g"
-          + "oogle.cloud.documentai.v1.DocumentSchema"
-          + "\"#\n\010Priority\022\013\n\007DEFAULT\020\000\022\n\n\006URGENT\020\001B\010\n"
-          + "\006source\"\321\001\n\026ReviewDocumentResponse\022\027\n\017gc"
-          + "s_destination\030\001 \001(\t\022G\n\005state\030\002 \001(\01628.goo"
-          + "gle.cloud.documentai.v1.ReviewDocumentRe"
-          + "sponse.State\022\030\n\020rejection_reason\030\003 \001(\t\";"
-          + "\n\005State\022\025\n\021STATE_UNSPECIFIED\020\000\022\014\n\010REJECT"
-          + "ED\020\001\022\r\n\tSUCCEEDED\020\002\"\204\001\n\037ReviewDocumentOp"
-          + "erationMetadata\022L\n\017common_metadata\030\005 \001(\013"
-          + "23.google.cloud.documentai.v1.CommonOper"
-          + "ationMetadata\022\023\n\013question_id\030\006 \001(\t\"\314\001\n\037E"
-          + "valuateProcessorVersionRequest\022N\n\021proces"
-          + "sor_version\030\001 \001(\tB3\342A\001\002\372A,\n*documentai.g"
-          + "oogleapis.com/ProcessorVersion\022Y\n\024evalua"
-          + "tion_documents\030\003 \001(\01325.google.cloud.docu"
-          + "mentai.v1.BatchDocumentsInputConfigB\004\342A\001"
-          + "\001\"p\n EvaluateProcessorVersionMetadata\022L\n"
-          + "\017common_metadata\030\001 \001(\01323.google.cloud.do"
-          + "cumentai.v1.CommonOperationMetadata\"6\n E"
-          + "valuateProcessorVersionResponse\022\022\n\nevalu"
-          + "ation\030\002 \001(\t\"S\n\024GetEvaluationRequest\022;\n\004n"
-          + "ame\030\001 \001(\tB-\342A\001\002\372A&\n$documentai.googleapi"
-          + "s.com/Evaluation\"\204\001\n\026ListEvaluationsRequ"
-          + "est\022C\n\006parent\030\001 \001(\tB3\342A\001\002\372A,\n*documentai"
-          + ".googleapis.com/ProcessorVersion\022\021\n\tpage"
-          + "_size\030\002 \001(\005\022\022\n\npage_token\030\003 \001(\t\"o\n\027ListE"
-          + "valuationsResponse\022;\n\013evaluations\030\001 \003(\0132"
-          + "&.google.cloud.documentai.v1.Evaluation\022"
-          + "\027\n\017next_page_token\030\002 \001(\t2\234*\n\030DocumentPro"
-          + "cessorService\022\207\002\n\017ProcessDocument\022*.goog"
-          + "le.cloud.documentai.v1.ProcessRequest\032+."
-          + "google.cloud.documentai.v1.ProcessRespon"
-          + "se\"\232\001\332A\004name\202\323\344\223\002\214\001\"6/v1/{name=projects/"
-          + "*/locations/*/processors/*}:process:\001*ZO"
-          + "\"J/v1/{name=projects/*/locations/*/proce"
-          + "ssors/*/processorVersions/*}:process:\001*\022"
-          + "\275\002\n\025BatchProcessDocuments\022/.google.cloud"
-          + ".documentai.v1.BatchProcessRequest\032\035.goo"
-          + "gle.longrunning.Operation\"\323\001\312A,\n\024BatchPr"
-          + "ocessResponse\022\024BatchProcessMetadata\332A\004na"
-          + "me\202\323\344\223\002\226\001\";/v1/{name=projects/*/location"
-          + "s/*/processors/*}:batchProcess:\001*ZT\"O/v1"
+          + "orVersionRequest.CustomDocumentExtractio"
+          + "nOptions.TrainingMethod\"V\n\016TrainingMetho"
+          + "d\022\037\n\033TRAINING_METHOD_UNSPECIFIED\020\000\022\017\n\013MO"
+          + "DEL_BASED\020\001\022\022\n\016TEMPLATE_BASED\020\002B\021\n\017proce"
+          + "ssor_flags\":\n\035TrainProcessorVersionRespo"
+          + "nse\022\031\n\021processor_version\030\001 \001(\t\"\367\003\n\035Train"
+          + "ProcessorVersionMetadata\022L\n\017common_metad"
+          + "ata\030\001 \001(\01323.google.cloud.documentai.v1.C"
+          + "ommonOperationMetadata\022p\n\033training_datas"
+          + "et_validation\030\002 \001(\0132K.google.cloud.docum"
+          + "entai.v1.TrainProcessorVersionMetadata.D"
+          + "atasetValidation\022l\n\027test_dataset_validat"
+          + "ion\030\003 \001(\0132K.google.cloud.documentai.v1.T"
+          + "rainProcessorVersionMetadata.DatasetVali"
+          + "dation\032\247\001\n\021DatasetValidation\022\034\n\024document"
+          + "_error_count\030\003 \001(\005\022\033\n\023dataset_error_coun"
+          + "t\030\004 \001(\005\022+\n\017document_errors\030\001 \003(\0132\022.googl"
+          + "e.rpc.Status\022*\n\016dataset_errors\030\002 \003(\0132\022.g"
+          + "oogle.rpc.Status\"\217\003\n\025ReviewDocumentReque"
+          + "st\022?\n\017inline_document\030\004 \001(\0132$.google.clo"
+          + "ud.documentai.v1.DocumentH\000\022Q\n\023human_rev"
+          + "iew_config\030\001 \001(\tB4\342A\001\002\372A-\n+documentai.go"
+          + "ogleapis.com/HumanReviewConfig\022 \n\030enable"
+          + "_schema_validation\030\003 \001(\010\022L\n\010priority\030\005 \001"
+          + "(\0162:.google.cloud.documentai.v1.ReviewDo"
+          + "cumentRequest.Priority\022C\n\017document_schem"
+          + "a\030\006 \001(\0132*.google.cloud.documentai.v1.Doc"
+          + "umentSchema\"#\n\010Priority\022\013\n\007DEFAULT\020\000\022\n\n\006"
+          + "URGENT\020\001B\010\n\006source\"\321\001\n\026ReviewDocumentRes"
+          + "ponse\022\027\n\017gcs_destination\030\001 \001(\t\022G\n\005state\030"
+          + "\002 \001(\01628.google.cloud.documentai.v1.Revie"
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+          + "ion\022\021\n\tpage_size\030\002 \001(\005\022\022\n\npage_token\030\003 \001"
+          + "(\t\"o\n\027ListEvaluationsResponse\022;\n\013evaluat"
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+          + "Evaluation\022\027\n\017next_page_token\030\002 \001(\t2\234*\n\030"
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+          + "ations/*}/processorTypes\022\265\001\n\020GetProcesso"
+          + "rType\0223.google.cloud.documentai.v1.GetPr"
+          + "ocessorTypeRequest\032).google.cloud.docume"
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+          + "1/{name=projects/*/locations/*/processor"
+          + "Types/*}\022\270\001\n\016ListProcessors\0221.google.clo"
+          + "ud.documentai.v1.ListProcessorsRequest\0322"
+          + ".google.cloud.documentai.v1.ListProcesso"
+          + "rsResponse\"?\332A\006parent\202\323\344\223\0020\022./v1/{parent"
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-          + "/*/processorVersions/*}:batchProcess:\001*\022"
-          + "\320\001\n\023FetchProcessorTypes\0226.google.cloud.d"
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-          + "Request\032).google.cloud.documentai.v1.Pro"
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-          + "\n\016ListProcessors\0221.google.cloud.document"
-          + "ai.v1.ListProcessorsRequest\0322.google.clo"
-          + "ud.documentai.v1.ListProcessorsResponse\""
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-          + "r\022/.google.cloud.documentai.v1.GetProces"
-          + "sorRequest\032%.google.cloud.documentai.v1."
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-          + "essorVersionMetadata\332A\004name\202\323\344\223\002D*B/v1/{"
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-          + "/processorVersions/*}\022\223\002\n\026DeployProcesso"
-          + "rVersion\0229.google.cloud.documentai.v1.De"
-          + "ployProcessorVersionRequest\032\035.google.lon"
-          + "grunning.Operation\"\236\001\312A@\n\036DeployProcesso"
-          + "rVersionResponse\022\036DeployProcessorVersion"
-          + "Metadata\332A\004name\202\323\344\223\002N\"I/v1/{name=project"
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-          + "rsions/*}:deploy:\001*\022\235\002\n\030UndeployProcesso"
-          + "rVersion\022;.google.cloud.documentai.v1.Un"
-          + "deployProcessorVersionRequest\032\035.google.l"
-          + "ongrunning.Operation\"\244\001\312AD\n UndeployProc"
-          + "essorVersionResponse\022 UndeployProcessorV"
-          + "ersionMetadata\332A\004name\202\323\344\223\002P\"K/v1/{name=p"
-          + "rojects/*/locations/*/processors/*/proce"
-          + "ssorVersions/*}:undeploy:\001*\022\302\001\n\017CreatePr"
-          + "ocessor\0222.google.cloud.documentai.v1.Cre"
-          + "ateProcessorRequest\032%.google.cloud.docum"
-          + "entai.v1.Processor\"T\332A\020parent,processor\202"
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-          + "*}/processors:\tprocessor\022\326\001\n\017DeleteProce"
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-          + "eration\"p\312A0\n\025google.protobuf.Empty\022\027Del"
-          + "eteProcessorMetadata\332A\004name\202\323\344\223\0020*./v1/{"
-          + "name=projects/*/locations/*/processors/*"
-          + "}\022\333\001\n\017EnableProcessor\0222.google.cloud.doc"
-          + "umentai.v1.EnableProcessorRequest\032\035.goog"
-          + "le.longrunning.Operation\"u\312A2\n\027EnablePro"
-          + "cessorResponse\022\027EnableProcessorMetadata\202"
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-          + "processors/*}:enable:\001*\022\340\001\n\020DisableProce"
-          + "ssor\0223.google.cloud.documentai.v1.Disabl"
-          + "eProcessorRequest\032\035.google.longrunning.O"
-          + "peration\"x\312A4\n\030DisableProcessorResponse\022"
-          + "\030DisableProcessorMetadata\202\323\344\223\002;\"6/v1/{na"
-          + "me=projects/*/locations/*/processors/*}:"
-          + "disable:\001*\022\241\002\n\032SetDefaultProcessorVersio"
-          + "n\022=.google.cloud.documentai.v1.SetDefaul"
-          + "tProcessorVersionRequest\032\035.google.longru"
-          + "nning.Operation\"\244\001\312AH\n\"SetDefaultProcess"
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-          + "ects/*/locations/*/processors/*}:setDefa"
-          + "ultProcessorVersion:\001*\022\240\002\n\016ReviewDocumen"
-          + "t\0221.google.cloud.documentai.v1.ReviewDoc"
-          + "umentRequest\032\035.google.longrunning.Operat"
-          + "ion\"\273\001\312A9\n\026ReviewDocumentResponse\022\037Revie"
-          + "wDocumentOperationMetadata\332A\023human_revie"
-          + "w_config\202\323\344\223\002c\"^/v1/{human_review_config"
-          + "=projects/*/locations/*/processors/*/hum"
-          + "anReviewConfig}:reviewDocument:\001*\022\307\002\n\030Ev"
-          + "aluateProcessorVersion\022;.google.cloud.do"
-          + "cumentai.v1.EvaluateProcessorVersionRequ"
-          + "est\032\035.google.longrunning.Operation\"\316\001\312AD"
-          + "\n EvaluateProcessorVersionResponse\022 Eval"
-          + "uateProcessorVersionMetadata\332A\021processor"
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-          + ":\001*\022\312\001\n\rGetEvaluation\0220.google.cloud.doc"
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-          + "\202\323\344\223\002R\022P/v1/{name=projects/*/locations/*"
-          + "/processors/*/processorVersions/*/evalua"
-          + "tions/*}\022\335\001\n\017ListEvaluations\0222.google.cl"
-          + "oud.documentai.v1.ListEvaluationsRequest"
-          + "\0323.google.cloud.documentai.v1.ListEvalua"
-          + "tionsResponse\"a\332A\006parent\202\323\344\223\002R\022P/v1/{par"
-          + "ent=projects/*/locations/*/processors/*/"
-          + "processorVersions/*}/evaluations\032M\312A\031doc"
-          + "umentai.googleapis.com\322A.https://www.goo"
-          + "gleapis.com/auth/cloud-platformB\252\003\n\036com."
-          + "google.cloud.documentai.v1B\032DocumentAiPr"
-          + "ocessorServiceP\001Z>cloud.google.com/go/do"
-          + "cumentai/apiv1/documentaipb;documentaipb"
-          + "\252\002\032Google.Cloud.DocumentAI.V1\312\002\032Google\\C"
-          + "loud\\DocumentAI\\V1\352\002\035Google::Cloud::Docu"
-          + "mentAI::V1\352A\177\n+documentai.googleapis.com"
-          + "/HumanReviewConfig\022Pprojects/{project}/l"
-          + "ocations/{location}/processors/{processo"
-          + "r}/humanReviewConfig\352AM\n\"documentai.goog"
-          + "leapis.com/Location\022\'projects/{project}/"
-          + "locations/{location}b\006proto3"
+          + "/*}\022\242\002\n\025TrainProcessorVersion\0228.google.c"
+          + "loud.documentai.v1.TrainProcessorVersion"
+          + "Request\032\035.google.longrunning.Operation\"\257"
+          + "\001\312A>\n\035TrainProcessorVersionResponse\022\035Tra"
+          + "inProcessorVersionMetadata\332A\030parent,proc"
+          + "essor_version\202\323\344\223\002M\"H/v1/{parent=project"
+          + "s/*/locations/*/processors/*}/processorV"
+          + "ersions:train:\001*\022\316\001\n\023GetProcessorVersion"
+          + "\0226.google.cloud.documentai.v1.GetProcess"
+          + "orVersionRequest\032,.google.cloud.document"
+          + "ai.v1.ProcessorVersion\"Q\332A\004name\202\323\344\223\002D\022B/"
+          + "v1/{name=projects/*/locations/*/processo"
+          + "rs/*/processorVersions/*}\022\341\001\n\025ListProces"
+          + "sorVersions\0228.google.cloud.documentai.v1"
+          + ".ListProcessorVersionsRequest\0329.google.c"
+          + "loud.documentai.v1.ListProcessorVersions"
+          + "Response\"S\332A\006parent\202\323\344\223\002D\022B/v1/{parent=p"
+          + "rojects/*/locations/*/processors/*}/proc"
+          + "essorVersions\022\200\002\n\026DeleteProcessorVersion"
+          + "\0229.google.cloud.documentai.v1.DeleteProc"
+          + "essorVersionRequest\032\035.google.longrunning"
+          + ".Operation\"\213\001\312A7\n\025google.protobuf.Empty\022"
+          + "\036DeleteProcessorVersionMetadata\332A\004name\202\323"
+          + "\344\223\002D*B/v1/{name=projects/*/locations/*/p"
+          + "rocessors/*/processorVersions/*}\022\223\002\n\026Dep"
+          + "loyProcessorVersion\0229.google.cloud.docum"
+          + "entai.v1.DeployProcessorVersionRequest\032\035"
+          + ".google.longrunning.Operation\"\236\001\312A@\n\036Dep"
+          + "loyProcessorVersionResponse\022\036DeployProce"
+          + "ssorVersionMetadata\332A\004name\202\323\344\223\002N\"I/v1/{n"
+          + "ame=projects/*/locations/*/processors/*/"
+          + "processorVersions/*}:deploy:\001*\022\235\002\n\030Undep"
+          + "loyProcessorVersion\022;.google.cloud.docum"
+          + "entai.v1.UndeployProcessorVersionRequest"
+          + "\032\035.google.longrunning.Operation\"\244\001\312AD\n U"
+          + "ndeployProcessorVersionResponse\022 Undeplo"
+          + "yProcessorVersionMetadata\332A\004name\202\323\344\223\002P\"K"
+          + "/v1/{name=projects/*/locations/*/process"
+          + "ors/*/processorVersions/*}:undeploy:\001*\022\302"
+          + "\001\n\017CreateProcessor\0222.google.cloud.docume"
+          + "ntai.v1.CreateProcessorRequest\032%.google."
+          + "cloud.documentai.v1.Processor\"T\332A\020parent"
+          + ",processor\202\323\344\223\002;\"./v1/{parent=projects/*"
+          + "/locations/*}/processors:\tprocessor\022\326\001\n\017"
+          + "DeleteProcessor\0222.google.cloud.documenta"
+          + "i.v1.DeleteProcessorRequest\032\035.google.lon"
+          + "grunning.Operation\"p\312A0\n\025google.protobuf"
+          + ".Empty\022\027DeleteProcessorMetadata\332A\004name\202\323"
+          + "\344\223\0020*./v1/{name=projects/*/locations/*/p"
+          + "rocessors/*}\022\333\001\n\017EnableProcessor\0222.googl"
+          + "e.cloud.documentai.v1.EnableProcessorReq"
+          + "uest\032\035.google.longrunning.Operation\"u\312A2"
+          + "\n\027EnableProcessorResponse\022\027EnableProcess"
+          + "orMetadata\202\323\344\223\002:\"5/v1/{name=projects/*/l"
+          + "ocations/*/processors/*}:enable:\001*\022\340\001\n\020D"
+          + "isableProcessor\0223.google.cloud.documenta"
+          + "i.v1.DisableProcessorRequest\032\035.google.lo"
+          + "ngrunning.Operation\"x\312A4\n\030DisableProcess"
+          + "orResponse\022\030DisableProcessorMetadata\202\323\344\223"
+          + "\002;\"6/v1/{name=projects/*/locations/*/pro"
+          + "cessors/*}:disable:\001*\022\241\002\n\032SetDefaultProc"
+          + "essorVersion\022=.google.cloud.documentai.v"
+          + "1.SetDefaultProcessorVersionRequest\032\035.go"
+          + "ogle.longrunning.Operation\"\244\001\312AH\n\"SetDef"
+          + "aultProcessorVersionResponse\022\"SetDefault"
+          + "ProcessorVersionMetadata\202\323\344\223\002S\"N/v1/{pro"
+          + "cessor=projects/*/locations/*/processors"
+          + "/*}:setDefaultProcessorVersion:\001*\022\240\002\n\016Re"
+          + "viewDocument\0221.google.cloud.documentai.v"
+          + "1.ReviewDocumentRequest\032\035.google.longrun"
+          + "ning.Operation\"\273\001\312A9\n\026ReviewDocumentResp"
+          + "onse\022\037ReviewDocumentOperationMetadata\332A\023"
+          + "human_review_config\202\323\344\223\002c\"^/v1/{human_re"
+          + "view_config=projects/*/locations/*/proce"
+          + "ssors/*/humanReviewConfig}:reviewDocumen"
+          + "t:\001*\022\307\002\n\030EvaluateProcessorVersion\022;.goog"
+          + "le.cloud.documentai.v1.EvaluateProcessor"
+          + "VersionRequest\032\035.google.longrunning.Oper"
+          + "ation\"\316\001\312AD\n EvaluateProcessorVersionRes"
+          + "ponse\022 EvaluateProcessorVersionMetadata\332"
+          + "A\021processor_version\202\323\344\223\002m\"h/v1/{processo"
+          + "r_version=projects/*/locations/*/process"
+          + "ors/*/processorVersions/*}:evaluateProce"
+          + "ssorVersion:\001*\022\312\001\n\rGetEvaluation\0220.googl"
+          + "e.cloud.documentai.v1.GetEvaluationReque"
+          + "st\032&.google.cloud.documentai.v1.Evaluati"
+          + "on\"_\332A\004name\202\323\344\223\002R\022P/v1/{name=projects/*/"
+          + "locations/*/processors/*/processorVersio"
+          + "ns/*/evaluations/*}\022\335\001\n\017ListEvaluations\022"
+          + "2.google.cloud.documentai.v1.ListEvaluat"
+          + "ionsRequest\0323.google.cloud.documentai.v1"
+          + ".ListEvaluationsResponse\"a\332A\006parent\202\323\344\223\002"
+          + "R\022P/v1/{parent=projects/*/locations/*/pr"
+          + "ocessors/*/processorVersions/*}/evaluati"
+          + "ons\032M\312A\031documentai.googleapis.com\322A.http"
+          + "s://www.googleapis.com/auth/cloud-platfo"
+          + "rmB\252\003\n\036com.google.cloud.documentai.v1B\032D"
+          + "ocumentAiProcessorServiceP\001Z>cloud.googl"
+          + "e.com/go/documentai/apiv1/documentaipb;d"
+          + "ocumentaipb\252\002\032Google.Cloud.DocumentAI.V1"
+          + "\312\002\032Google\\Cloud\\DocumentAI\\V1\352\002\035Google::"
+          + "Cloud::DocumentAI::V1\352A\177\n+documentai.goo"
+          + "gleapis.com/HumanReviewConfig\022Pprojects/"
+          + "{project}/locations/{location}/processor"
+          + "s/{processor}/humanReviewConfig\352AM\n\"docu"
+          + "mentai.googleapis.com/Location\022\'projects"
+          + "/{project}/locations/{location}b\006proto3"
     };
     descriptor =
         com.google.protobuf.Descriptors.FileDescriptor.internalBuildGeneratedFileFrom(
@@ -610,16 +635,31 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
               com.google.protobuf.TimestampProto.getDescriptor(),
               com.google.rpc.StatusProto.getDescriptor(),
             });
-    internal_static_google_cloud_documentai_v1_ProcessRequest_descriptor =
+    internal_static_google_cloud_documentai_v1_ProcessOptions_descriptor =
         getDescriptor().getMessageTypes().get(0);
+    internal_static_google_cloud_documentai_v1_ProcessOptions_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_documentai_v1_ProcessOptions_descriptor,
+            new java.lang.String[] {
+              "OcrConfig",
+            });
+    internal_static_google_cloud_documentai_v1_ProcessRequest_descriptor =
+        getDescriptor().getMessageTypes().get(1);
     internal_static_google_cloud_documentai_v1_ProcessRequest_fieldAccessorTable =
         new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
             internal_static_google_cloud_documentai_v1_ProcessRequest_descriptor,
             new java.lang.String[] {
-              "InlineDocument", "RawDocument", "Name", "SkipHumanReview", "FieldMask", "Source",
+              "InlineDocument",
+              "RawDocument",
+              "GcsDocument",
+              "Name",
+              "SkipHumanReview",
+              "FieldMask",
+              "ProcessOptions",
+              "Source",
             });
     internal_static_google_cloud_documentai_v1_HumanReviewStatus_descriptor =
-        getDescriptor().getMessageTypes().get(1);
+        getDescriptor().getMessageTypes().get(2);
     internal_static_google_cloud_documentai_v1_HumanReviewStatus_fieldAccessorTable =
         new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
             internal_static_google_cloud_documentai_v1_HumanReviewStatus_descriptor,
@@ -627,7 +667,7 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
               "State", "StateMessage", "HumanReviewOperation",
             });
     internal_static_google_cloud_documentai_v1_ProcessResponse_descriptor =
-        getDescriptor().getMessageTypes().get(2);
+        getDescriptor().getMessageTypes().get(3);
     internal_static_google_cloud_documentai_v1_ProcessResponse_fieldAccessorTable =
         new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
             internal_static_google_cloud_documentai_v1_ProcessResponse_descriptor,
@@ -635,21 +675,21 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
               "Document", "HumanReviewStatus",
             });
     internal_static_google_cloud_documentai_v1_BatchProcessRequest_descriptor =
-        getDescriptor().getMessageTypes().get(3);
+        getDescriptor().getMessageTypes().get(4);
     internal_static_google_cloud_documentai_v1_BatchProcessRequest_fieldAccessorTable =
         new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
             internal_static_google_cloud_documentai_v1_BatchProcessRequest_descriptor,
             new java.lang.String[] {
-              "Name", "InputDocuments", "DocumentOutputConfig", "SkipHumanReview",
+              "Name", "InputDocuments", "DocumentOutputConfig", "SkipHumanReview", "ProcessOptions",
             });
     internal_static_google_cloud_documentai_v1_BatchProcessResponse_descriptor =
-        getDescriptor().getMessageTypes().get(4);
+        getDescriptor().getMessageTypes().get(5);
     internal_static_google_cloud_documentai_v1_BatchProcessResponse_fieldAccessorTable =
         new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
             internal_static_google_cloud_documentai_v1_BatchProcessResponse_descriptor,
             new java.lang.String[] {});
     internal_static_google_cloud_documentai_v1_BatchProcessMetadata_descriptor =
-        getDescriptor().getMessageTypes().get(5);
+        getDescriptor().getMessageTypes().get(6);
     internal_static_google_cloud_documentai_v1_BatchProcessMetadata_fieldAccessorTable =
         new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
             internal_static_google_cloud_documentai_v1_BatchProcessMetadata_descriptor,
@@ -667,7 +707,7 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
               "InputGcsSource", "Status", "OutputGcsDestination", "HumanReviewStatus",
             });
     internal_static_google_cloud_documentai_v1_FetchProcessorTypesRequest_descriptor =
-        getDescriptor().getMessageTypes().get(6);
+        getDescriptor().getMessageTypes().get(7);
     internal_static_google_cloud_documentai_v1_FetchProcessorTypesRequest_fieldAccessorTable =
         new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
             internal_static_google_cloud_documentai_v1_FetchProcessorTypesRequest_descriptor,
@@ -675,7 +715,7 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
               "Parent",
             });
     internal_static_google_cloud_documentai_v1_FetchProcessorTypesResponse_descriptor =
-        getDescriptor().getMessageTypes().get(7);
+        getDescriptor().getMessageTypes().get(8);
     internal_static_google_cloud_documentai_v1_FetchProcessorTypesResponse_fieldAccessorTable =
         new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
             internal_static_google_cloud_documentai_v1_FetchProcessorTypesResponse_descriptor,
@@ -683,7 +723,7 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
               "ProcessorTypes",
             });
     internal_static_google_cloud_documentai_v1_ListProcessorTypesRequest_descriptor =
-        getDescriptor().getMessageTypes().get(8);
+        getDescriptor().getMessageTypes().get(9);
     internal_static_google_cloud_documentai_v1_ListProcessorTypesRequest_fieldAccessorTable =
         new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
             internal_static_google_cloud_documentai_v1_ListProcessorTypesRequest_descriptor,
@@ -691,7 +731,7 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
               "Parent", "PageSize", "PageToken",
             });
     internal_static_google_cloud_documentai_v1_ListProcessorTypesResponse_descriptor =
-        getDescriptor().getMessageTypes().get(9);
+        getDescriptor().getMessageTypes().get(10);
     internal_static_google_cloud_documentai_v1_ListProcessorTypesResponse_fieldAccessorTable =
         new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
             internal_static_google_cloud_documentai_v1_ListProcessorTypesResponse_descriptor,
@@ -699,7 +739,7 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
               "ProcessorTypes", "NextPageToken",
             });
     internal_static_google_cloud_documentai_v1_ListProcessorsRequest_descriptor =
-        getDescriptor().getMessageTypes().get(10);
+        getDescriptor().getMessageTypes().get(11);
     internal_static_google_cloud_documentai_v1_ListProcessorsRequest_fieldAccessorTable =
         new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
             internal_static_google_cloud_documentai_v1_ListProcessorsRequest_descriptor,
@@ -707,7 +747,7 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
               "Parent", "PageSize", "PageToken",
             });
     internal_static_google_cloud_documentai_v1_ListProcessorsResponse_descriptor =
-        getDescriptor().getMessageTypes().get(11);
+        getDescriptor().getMessageTypes().get(12);
     internal_static_google_cloud_documentai_v1_ListProcessorsResponse_fieldAccessorTable =
         new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
             internal_static_google_cloud_documentai_v1_ListProcessorsResponse_descriptor,
@@ -715,7 +755,7 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
               "Processors", "NextPageToken",
             });
     internal_static_google_cloud_documentai_v1_GetProcessorTypeRequest_descriptor =
-        getDescriptor().getMessageTypes().get(12);
+        getDescriptor().getMessageTypes().get(13);
     internal_static_google_cloud_documentai_v1_GetProcessorTypeRequest_fieldAccessorTable =
         new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
             internal_static_google_cloud_documentai_v1_GetProcessorTypeRequest_descriptor,
@@ -723,7 +763,7 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
               "Name",
             });
     internal_static_google_cloud_documentai_v1_GetProcessorRequest_descriptor =
-        getDescriptor().getMessageTypes().get(13);
+        getDescriptor().getMessageTypes().get(14);
     internal_static_google_cloud_documentai_v1_GetProcessorRequest_fieldAccessorTable =
         new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
             internal_static_google_cloud_documentai_v1_GetProcessorRequest_descriptor,
@@ -731,7 +771,7 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
               "Name",
             });
     internal_static_google_cloud_documentai_v1_GetProcessorVersionRequest_descriptor =
-        getDescriptor().getMessageTypes().get(14);
+        getDescriptor().getMessageTypes().get(15);
     internal_static_google_cloud_documentai_v1_GetProcessorVersionRequest_fieldAccessorTable =
         new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
             internal_static_google_cloud_documentai_v1_GetProcessorVersionRequest_descriptor,
@@ -739,7 +779,7 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
               "Name",
             });
     internal_static_google_cloud_documentai_v1_ListProcessorVersionsRequest_descriptor =
-        getDescriptor().getMessageTypes().get(15);
+        getDescriptor().getMessageTypes().get(16);
     internal_static_google_cloud_documentai_v1_ListProcessorVersionsRequest_fieldAccessorTable =
         new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
             internal_static_google_cloud_documentai_v1_ListProcessorVersionsRequest_descriptor,
@@ -747,7 +787,7 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
               "Parent", "PageSize", "PageToken",
             });
     internal_static_google_cloud_documentai_v1_ListProcessorVersionsResponse_descriptor =
-        getDescriptor().getMessageTypes().get(16);
+        getDescriptor().getMessageTypes().get(17);
     internal_static_google_cloud_documentai_v1_ListProcessorVersionsResponse_fieldAccessorTable =
         new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
             internal_static_google_cloud_documentai_v1_ListProcessorVersionsResponse_descriptor,
@@ -755,7 +795,7 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
               "ProcessorVersions", "NextPageToken",
             });
     internal_static_google_cloud_documentai_v1_DeleteProcessorVersionRequest_descriptor =
-        getDescriptor().getMessageTypes().get(17);
+        getDescriptor().getMessageTypes().get(18);
     internal_static_google_cloud_documentai_v1_DeleteProcessorVersionRequest_fieldAccessorTable =
         new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
             internal_static_google_cloud_documentai_v1_DeleteProcessorVersionRequest_descriptor,
@@ -763,7 +803,7 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
               "Name",
             });
     internal_static_google_cloud_documentai_v1_DeleteProcessorVersionMetadata_descriptor =
-        getDescriptor().getMessageTypes().get(18);
+        getDescriptor().getMessageTypes().get(19);
     internal_static_google_cloud_documentai_v1_DeleteProcessorVersionMetadata_fieldAccessorTable =
         new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
             internal_static_google_cloud_documentai_v1_DeleteProcessorVersionMetadata_descriptor,
@@ -771,7 +811,7 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
               "CommonMetadata",
             });
     internal_static_google_cloud_documentai_v1_DeployProcessorVersionRequest_descriptor =
-        getDescriptor().getMessageTypes().get(19);
+        getDescriptor().getMessageTypes().get(20);
     internal_static_google_cloud_documentai_v1_DeployProcessorVersionRequest_fieldAccessorTable =
         new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
             internal_static_google_cloud_documentai_v1_DeployProcessorVersionRequest_descriptor,
@@ -779,13 +819,13 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
               "Name",
             });
     internal_static_google_cloud_documentai_v1_DeployProcessorVersionResponse_descriptor =
-        getDescriptor().getMessageTypes().get(20);
+        getDescriptor().getMessageTypes().get(21);
     internal_static_google_cloud_documentai_v1_DeployProcessorVersionResponse_fieldAccessorTable =
         new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
             internal_static_google_cloud_documentai_v1_DeployProcessorVersionResponse_descriptor,
             new java.lang.String[] {});
     internal_static_google_cloud_documentai_v1_DeployProcessorVersionMetadata_descriptor =
-        getDescriptor().getMessageTypes().get(21);
+        getDescriptor().getMessageTypes().get(22);
     internal_static_google_cloud_documentai_v1_DeployProcessorVersionMetadata_fieldAccessorTable =
         new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
             internal_static_google_cloud_documentai_v1_DeployProcessorVersionMetadata_descriptor,
@@ -793,7 +833,7 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
               "CommonMetadata",
             });
     internal_static_google_cloud_documentai_v1_UndeployProcessorVersionRequest_descriptor =
-        getDescriptor().getMessageTypes().get(22);
+        getDescriptor().getMessageTypes().get(23);
     internal_static_google_cloud_documentai_v1_UndeployProcessorVersionRequest_fieldAccessorTable =
         new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
             internal_static_google_cloud_documentai_v1_UndeployProcessorVersionRequest_descriptor,
@@ -801,13 +841,13 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
               "Name",
             });
     internal_static_google_cloud_documentai_v1_UndeployProcessorVersionResponse_descriptor =
-        getDescriptor().getMessageTypes().get(23);
+        getDescriptor().getMessageTypes().get(24);
     internal_static_google_cloud_documentai_v1_UndeployProcessorVersionResponse_fieldAccessorTable =
         new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
             internal_static_google_cloud_documentai_v1_UndeployProcessorVersionResponse_descriptor,
             new java.lang.String[] {});
     internal_static_google_cloud_documentai_v1_UndeployProcessorVersionMetadata_descriptor =
-        getDescriptor().getMessageTypes().get(24);
+        getDescriptor().getMessageTypes().get(25);
     internal_static_google_cloud_documentai_v1_UndeployProcessorVersionMetadata_fieldAccessorTable =
         new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
             internal_static_google_cloud_documentai_v1_UndeployProcessorVersionMetadata_descriptor,
@@ -815,7 +855,7 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
               "CommonMetadata",
             });
     internal_static_google_cloud_documentai_v1_CreateProcessorRequest_descriptor =
-        getDescriptor().getMessageTypes().get(25);
+        getDescriptor().getMessageTypes().get(26);
     internal_static_google_cloud_documentai_v1_CreateProcessorRequest_fieldAccessorTable =
         new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
             internal_static_google_cloud_documentai_v1_CreateProcessorRequest_descriptor,
@@ -823,7 +863,7 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
               "Parent", "Processor",
             });
     internal_static_google_cloud_documentai_v1_DeleteProcessorRequest_descriptor =
-        getDescriptor().getMessageTypes().get(26);
+        getDescriptor().getMessageTypes().get(27);
     internal_static_google_cloud_documentai_v1_DeleteProcessorRequest_fieldAccessorTable =
         new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
             internal_static_google_cloud_documentai_v1_DeleteProcessorRequest_descriptor,
@@ -831,7 +871,7 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
               "Name",
             });
     internal_static_google_cloud_documentai_v1_DeleteProcessorMetadata_descriptor =
-        getDescriptor().getMessageTypes().get(27);
+        getDescriptor().getMessageTypes().get(28);
     internal_static_google_cloud_documentai_v1_DeleteProcessorMetadata_fieldAccessorTable =
         new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
             internal_static_google_cloud_documentai_v1_DeleteProcessorMetadata_descriptor,
@@ -839,7 +879,7 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
               "CommonMetadata",
             });
     internal_static_google_cloud_documentai_v1_EnableProcessorRequest_descriptor =
-        getDescriptor().getMessageTypes().get(28);
+        getDescriptor().getMessageTypes().get(29);
     internal_static_google_cloud_documentai_v1_EnableProcessorRequest_fieldAccessorTable =
         new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
             internal_static_google_cloud_documentai_v1_EnableProcessorRequest_descriptor,
@@ -847,13 +887,13 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
               "Name",
             });
     internal_static_google_cloud_documentai_v1_EnableProcessorResponse_descriptor =
-        getDescriptor().getMessageTypes().get(29);
+        getDescriptor().getMessageTypes().get(30);
     internal_static_google_cloud_documentai_v1_EnableProcessorResponse_fieldAccessorTable =
         new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
             internal_static_google_cloud_documentai_v1_EnableProcessorResponse_descriptor,
             new java.lang.String[] {});
     internal_static_google_cloud_documentai_v1_EnableProcessorMetadata_descriptor =
-        getDescriptor().getMessageTypes().get(30);
+        getDescriptor().getMessageTypes().get(31);
     internal_static_google_cloud_documentai_v1_EnableProcessorMetadata_fieldAccessorTable =
         new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
             internal_static_google_cloud_documentai_v1_EnableProcessorMetadata_descriptor,
@@ -861,7 +901,7 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
               "CommonMetadata",
             });
     internal_static_google_cloud_documentai_v1_DisableProcessorRequest_descriptor =
-        getDescriptor().getMessageTypes().get(31);
+        getDescriptor().getMessageTypes().get(32);
     internal_static_google_cloud_documentai_v1_DisableProcessorRequest_fieldAccessorTable =
         new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
             internal_static_google_cloud_documentai_v1_DisableProcessorRequest_descriptor,
@@ -869,13 +909,13 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
               "Name",
             });
     internal_static_google_cloud_documentai_v1_DisableProcessorResponse_descriptor =
-        getDescriptor().getMessageTypes().get(32);
+        getDescriptor().getMessageTypes().get(33);
     internal_static_google_cloud_documentai_v1_DisableProcessorResponse_fieldAccessorTable =
         new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
             internal_static_google_cloud_documentai_v1_DisableProcessorResponse_descriptor,
             new java.lang.String[] {});
     internal_static_google_cloud_documentai_v1_DisableProcessorMetadata_descriptor =
-        getDescriptor().getMessageTypes().get(33);
+        getDescriptor().getMessageTypes().get(34);
     internal_static_google_cloud_documentai_v1_DisableProcessorMetadata_fieldAccessorTable =
         new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
             internal_static_google_cloud_documentai_v1_DisableProcessorMetadata_descriptor,
@@ -883,7 +923,7 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
               "CommonMetadata",
             });
     internal_static_google_cloud_documentai_v1_SetDefaultProcessorVersionRequest_descriptor =
-        getDescriptor().getMessageTypes().get(34);
+        getDescriptor().getMessageTypes().get(35);
     internal_static_google_cloud_documentai_v1_SetDefaultProcessorVersionRequest_fieldAccessorTable =
         new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
             internal_static_google_cloud_documentai_v1_SetDefaultProcessorVersionRequest_descriptor,
@@ -891,13 +931,13 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
               "Processor", "DefaultProcessorVersion",
             });
     internal_static_google_cloud_documentai_v1_SetDefaultProcessorVersionResponse_descriptor =
-        getDescriptor().getMessageTypes().get(35);
+        getDescriptor().getMessageTypes().get(36);
     internal_static_google_cloud_documentai_v1_SetDefaultProcessorVersionResponse_fieldAccessorTable =
         new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
             internal_static_google_cloud_documentai_v1_SetDefaultProcessorVersionResponse_descriptor,
             new java.lang.String[] {});
     internal_static_google_cloud_documentai_v1_SetDefaultProcessorVersionMetadata_descriptor =
-        getDescriptor().getMessageTypes().get(36);
+        getDescriptor().getMessageTypes().get(37);
     internal_static_google_cloud_documentai_v1_SetDefaultProcessorVersionMetadata_fieldAccessorTable =
         new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
             internal_static_google_cloud_documentai_v1_SetDefaultProcessorVersionMetadata_descriptor,
@@ -905,12 +945,18 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
               "CommonMetadata",
             });
     internal_static_google_cloud_documentai_v1_TrainProcessorVersionRequest_descriptor =
-        getDescriptor().getMessageTypes().get(37);
+        getDescriptor().getMessageTypes().get(38);
     internal_static_google_cloud_documentai_v1_TrainProcessorVersionRequest_fieldAccessorTable =
         new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
             internal_static_google_cloud_documentai_v1_TrainProcessorVersionRequest_descriptor,
             new java.lang.String[] {
-              "Parent", "ProcessorVersion", "DocumentSchema", "InputData", "BaseProcessorVersion",
+              "CustomDocumentExtractionOptions",
+              "Parent",
+              "ProcessorVersion",
+              "DocumentSchema",
+              "InputData",
+              "BaseProcessorVersion",
+              "ProcessorFlags",
             });
     internal_static_google_cloud_documentai_v1_TrainProcessorVersionRequest_InputData_descriptor =
         internal_static_google_cloud_documentai_v1_TrainProcessorVersionRequest_descriptor
@@ -922,8 +968,18 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
             new java.lang.String[] {
               "TrainingDocuments", "TestDocuments",
             });
+    internal_static_google_cloud_documentai_v1_TrainProcessorVersionRequest_CustomDocumentExtractionOptions_descriptor =
+        internal_static_google_cloud_documentai_v1_TrainProcessorVersionRequest_descriptor
+            .getNestedTypes()
+            .get(1);
+    internal_static_google_cloud_documentai_v1_TrainProcessorVersionRequest_CustomDocumentExtractionOptions_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_documentai_v1_TrainProcessorVersionRequest_CustomDocumentExtractionOptions_descriptor,
+            new java.lang.String[] {
+              "TrainingMethod",
+            });
     internal_static_google_cloud_documentai_v1_TrainProcessorVersionResponse_descriptor =
-        getDescriptor().getMessageTypes().get(38);
+        getDescriptor().getMessageTypes().get(39);
     internal_static_google_cloud_documentai_v1_TrainProcessorVersionResponse_fieldAccessorTable =
         new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
             internal_static_google_cloud_documentai_v1_TrainProcessorVersionResponse_descriptor,
@@ -931,7 +987,7 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
               "ProcessorVersion",
             });
     internal_static_google_cloud_documentai_v1_TrainProcessorVersionMetadata_descriptor =
-        getDescriptor().getMessageTypes().get(39);
+        getDescriptor().getMessageTypes().get(40);
     internal_static_google_cloud_documentai_v1_TrainProcessorVersionMetadata_fieldAccessorTable =
         new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
             internal_static_google_cloud_documentai_v1_TrainProcessorVersionMetadata_descriptor,
@@ -949,7 +1005,7 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
               "DocumentErrorCount", "DatasetErrorCount", "DocumentErrors", "DatasetErrors",
             });
     internal_static_google_cloud_documentai_v1_ReviewDocumentRequest_descriptor =
-        getDescriptor().getMessageTypes().get(40);
+        getDescriptor().getMessageTypes().get(41);
     internal_static_google_cloud_documentai_v1_ReviewDocumentRequest_fieldAccessorTable =
         new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
             internal_static_google_cloud_documentai_v1_ReviewDocumentRequest_descriptor,
@@ -962,7 +1018,7 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
               "Source",
             });
     internal_static_google_cloud_documentai_v1_ReviewDocumentResponse_descriptor =
-        getDescriptor().getMessageTypes().get(41);
+        getDescriptor().getMessageTypes().get(42);
     internal_static_google_cloud_documentai_v1_ReviewDocumentResponse_fieldAccessorTable =
         new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
             internal_static_google_cloud_documentai_v1_ReviewDocumentResponse_descriptor,
@@ -970,7 +1026,7 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
               "GcsDestination", "State", "RejectionReason",
             });
     internal_static_google_cloud_documentai_v1_ReviewDocumentOperationMetadata_descriptor =
-        getDescriptor().getMessageTypes().get(42);
+        getDescriptor().getMessageTypes().get(43);
     internal_static_google_cloud_documentai_v1_ReviewDocumentOperationMetadata_fieldAccessorTable =
         new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
             internal_static_google_cloud_documentai_v1_ReviewDocumentOperationMetadata_descriptor,
@@ -978,7 +1034,7 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
               "CommonMetadata", "QuestionId",
             });
     internal_static_google_cloud_documentai_v1_EvaluateProcessorVersionRequest_descriptor =
-        getDescriptor().getMessageTypes().get(43);
+        getDescriptor().getMessageTypes().get(44);
     internal_static_google_cloud_documentai_v1_EvaluateProcessorVersionRequest_fieldAccessorTable =
         new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
             internal_static_google_cloud_documentai_v1_EvaluateProcessorVersionRequest_descriptor,
@@ -986,7 +1042,7 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
               "ProcessorVersion", "EvaluationDocuments",
             });
     internal_static_google_cloud_documentai_v1_EvaluateProcessorVersionMetadata_descriptor =
-        getDescriptor().getMessageTypes().get(44);
+        getDescriptor().getMessageTypes().get(45);
     internal_static_google_cloud_documentai_v1_EvaluateProcessorVersionMetadata_fieldAccessorTable =
         new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
             internal_static_google_cloud_documentai_v1_EvaluateProcessorVersionMetadata_descriptor,
@@ -994,7 +1050,7 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
               "CommonMetadata",
             });
     internal_static_google_cloud_documentai_v1_EvaluateProcessorVersionResponse_descriptor =
-        getDescriptor().getMessageTypes().get(45);
+        getDescriptor().getMessageTypes().get(46);
     internal_static_google_cloud_documentai_v1_EvaluateProcessorVersionResponse_fieldAccessorTable =
         new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
             internal_static_google_cloud_documentai_v1_EvaluateProcessorVersionResponse_descriptor,
@@ -1002,7 +1058,7 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
               "Evaluation",
             });
     internal_static_google_cloud_documentai_v1_GetEvaluationRequest_descriptor =
-        getDescriptor().getMessageTypes().get(46);
+        getDescriptor().getMessageTypes().get(47);
     internal_static_google_cloud_documentai_v1_GetEvaluationRequest_fieldAccessorTable =
         new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
             internal_static_google_cloud_documentai_v1_GetEvaluationRequest_descriptor,
@@ -1010,7 +1066,7 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
               "Name",
             });
     internal_static_google_cloud_documentai_v1_ListEvaluationsRequest_descriptor =
-        getDescriptor().getMessageTypes().get(47);
+        getDescriptor().getMessageTypes().get(48);
     internal_static_google_cloud_documentai_v1_ListEvaluationsRequest_fieldAccessorTable =
         new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
             internal_static_google_cloud_documentai_v1_ListEvaluationsRequest_descriptor,
@@ -1018,7 +1074,7 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
               "Parent", "PageSize", "PageToken",
             });
     internal_static_google_cloud_documentai_v1_ListEvaluationsResponse_descriptor =
-        getDescriptor().getMessageTypes().get(48);
+        getDescriptor().getMessageTypes().get(49);
     internal_static_google_cloud_documentai_v1_ListEvaluationsResponse_fieldAccessorTable =
         new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
             internal_static_google_cloud_documentai_v1_ListEvaluationsResponse_descriptor,
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1/src/main/java/com/google/cloud/documentai/v1/DocumentIoProto.java b/java-document-ai/proto-google-cloud-document-ai-v1/src/main/java/com/google/cloud/documentai/v1/DocumentIoProto.java
index c662abacfc50..d24f94451219 100644
--- a/java-document-ai/proto-google-cloud-document-ai-v1/src/main/java/com/google/cloud/documentai/v1/DocumentIoProto.java
+++ b/java-document-ai/proto-google-cloud-document-ai-v1/src/main/java/com/google/cloud/documentai/v1/DocumentIoProto.java
@@ -59,6 +59,14 @@ public static void registerAllExtensions(com.google.protobuf.ExtensionRegistry r
       internal_static_google_cloud_documentai_v1_DocumentOutputConfig_GcsOutputConfig_ShardingConfig_descriptor;
   static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
       internal_static_google_cloud_documentai_v1_DocumentOutputConfig_GcsOutputConfig_ShardingConfig_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_documentai_v1_OcrConfig_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_documentai_v1_OcrConfig_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_documentai_v1_OcrConfig_Hints_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_documentai_v1_OcrConfig_Hints_fieldAccessorTable;
 
   public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
     return descriptor;
@@ -90,12 +98,18 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
           + "utputConfig.GcsOutputConfig.ShardingConf"
           + "ig\032@\n\016ShardingConfig\022\027\n\017pages_per_shard\030"
           + "\001 \001(\005\022\025\n\rpages_overlap\030\002 \001(\005B\r\n\013destinat"
-          + "ionB\315\001\n\036com.google.cloud.documentai.v1B\017"
-          + "DocumentIoProtoP\001Z>cloud.google.com/go/d"
-          + "ocumentai/apiv1/documentaipb;documentaip"
-          + "b\252\002\032Google.Cloud.DocumentAI.V1\312\002\032Google\\"
-          + "Cloud\\DocumentAI\\V1\352\002\035Google::Cloud::Doc"
-          + "umentAI::V1b\006proto3"
+          + "ion\"\201\002\n\tOcrConfig\022:\n\005hints\030\002 \001(\0132+.googl"
+          + "e.cloud.documentai.v1.OcrConfig.Hints\022!\n"
+          + "\031enable_native_pdf_parsing\030\003 \001(\010\022#\n\033enab"
+          + "le_image_quality_scores\030\004 \001(\010\022\034\n\024advance"
+          + "d_ocr_options\030\005 \003(\t\022\025\n\renable_symbol\030\006 \001"
+          + "(\010\022\032\n\022compute_style_info\030\010 \001(\010\032\037\n\005Hints\022"
+          + "\026\n\016language_hints\030\001 \003(\tB\315\001\n\036com.google.c"
+          + "loud.documentai.v1B\017DocumentIoProtoP\001Z>c"
+          + "loud.google.com/go/documentai/apiv1/docu"
+          + "mentaipb;documentaipb\252\002\032Google.Cloud.Doc"
+          + "umentAI.V1\312\002\032Google\\Cloud\\DocumentAI\\V1\352"
+          + "\002\035Google::Cloud::DocumentAI::V1b\006proto3"
     };
     descriptor =
         com.google.protobuf.Descriptors.FileDescriptor.internalBuildGeneratedFileFrom(
@@ -171,6 +185,27 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
             new java.lang.String[] {
               "PagesPerShard", "PagesOverlap",
             });
+    internal_static_google_cloud_documentai_v1_OcrConfig_descriptor =
+        getDescriptor().getMessageTypes().get(6);
+    internal_static_google_cloud_documentai_v1_OcrConfig_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_documentai_v1_OcrConfig_descriptor,
+            new java.lang.String[] {
+              "Hints",
+              "EnableNativePdfParsing",
+              "EnableImageQualityScores",
+              "AdvancedOcrOptions",
+              "EnableSymbol",
+              "ComputeStyleInfo",
+            });
+    internal_static_google_cloud_documentai_v1_OcrConfig_Hints_descriptor =
+        internal_static_google_cloud_documentai_v1_OcrConfig_descriptor.getNestedTypes().get(0);
+    internal_static_google_cloud_documentai_v1_OcrConfig_Hints_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_documentai_v1_OcrConfig_Hints_descriptor,
+            new java.lang.String[] {
+              "LanguageHints",
+            });
     com.google.protobuf.FieldMaskProto.getDescriptor();
   }
 
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1/src/main/java/com/google/cloud/documentai/v1/OcrConfig.java b/java-document-ai/proto-google-cloud-document-ai-v1/src/main/java/com/google/cloud/documentai/v1/OcrConfig.java
new file mode 100644
index 000000000000..d28b9513fcc4
--- /dev/null
+++ b/java-document-ai/proto-google-cloud-document-ai-v1/src/main/java/com/google/cloud/documentai/v1/OcrConfig.java
@@ -0,0 +1,2291 @@
+/*
+ * Copyright 2023 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/documentai/v1/document_io.proto
+
+package com.google.cloud.documentai.v1;
+
+/**
+ *
+ *
+ * 
+ * Config for Document OCR.
+ * 

+ *
+ * Protobuf type {@code google.cloud.documentai.v1.OcrConfig}
+ */
+public final class OcrConfig extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.documentai.v1.OcrConfig)
+    OcrConfigOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use OcrConfig.newBuilder() to construct.
+  private OcrConfig(com.google.protobuf.GeneratedMessageV3.Builder builder) {
+    super(builder);
+  }
+
+  private OcrConfig() {
+    advancedOcrOptions_ = com.google.protobuf.LazyStringArrayList.emptyList();
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new OcrConfig();
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.documentai.v1.DocumentIoProto
+        .internal_static_google_cloud_documentai_v1_OcrConfig_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.documentai.v1.DocumentIoProto
+        .internal_static_google_cloud_documentai_v1_OcrConfig_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.documentai.v1.OcrConfig.class,
+            com.google.cloud.documentai.v1.OcrConfig.Builder.class);
+  }
+
+  public interface HintsOrBuilder
+      extends
+      // @@protoc_insertion_point(interface_extends:google.cloud.documentai.v1.OcrConfig.Hints)
+      com.google.protobuf.MessageOrBuilder {
+
+    /**
+     *
+     *
+     * 
+     * List of BCP-47 language codes to use for OCR. In most cases, not
+     * specifying it yields the best results since it enables automatic language
+     * detection. For languages based on the Latin alphabet, setting hints is
+     * not needed. In rare cases, when the language of the text in the
+     * image is known, setting a hint will help get better results (although it
+     * will be a significant hindrance if the hint is wrong).
+     * 

+     *
+     * repeated string language_hints = 1;
+     *
+     * @return A list containing the languageHints.
+     */
+    java.util.List getLanguageHintsList();
+    /**
+     *
+     *
+     * 
+     * List of BCP-47 language codes to use for OCR. In most cases, not
+     * specifying it yields the best results since it enables automatic language
+     * detection. For languages based on the Latin alphabet, setting hints is
+     * not needed. In rare cases, when the language of the text in the
+     * image is known, setting a hint will help get better results (although it
+     * will be a significant hindrance if the hint is wrong).
+     * 

+     *
+     * repeated string language_hints = 1;
+     *
+     * @return The count of languageHints.
+     */
+    int getLanguageHintsCount();
+    /**
+     *
+     *
+     * 
+     * List of BCP-47 language codes to use for OCR. In most cases, not
+     * specifying it yields the best results since it enables automatic language
+     * detection. For languages based on the Latin alphabet, setting hints is
+     * not needed. In rare cases, when the language of the text in the
+     * image is known, setting a hint will help get better results (although it
+     * will be a significant hindrance if the hint is wrong).
+     * 

+     *
+     * repeated string language_hints = 1;
+     *
+     * @param index The index of the element to return.
+     * @return The languageHints at the given index.
+     */
+    java.lang.String getLanguageHints(int index);
+    /**
+     *
+     *
+     * 
+     * List of BCP-47 language codes to use for OCR. In most cases, not
+     * specifying it yields the best results since it enables automatic language
+     * detection. For languages based on the Latin alphabet, setting hints is
+     * not needed. In rare cases, when the language of the text in the
+     * image is known, setting a hint will help get better results (although it
+     * will be a significant hindrance if the hint is wrong).
+     * 

+     *
+     * repeated string language_hints = 1;
+     *
+     * @param index The index of the value to return.
+     * @return The bytes of the languageHints at the given index.
+     */
+    com.google.protobuf.ByteString getLanguageHintsBytes(int index);
+  }
+  /**
+   *
+   *
+   * 
+   * Hints for OCR Engine
+   * 

+   *
+   * Protobuf type {@code google.cloud.documentai.v1.OcrConfig.Hints}
+   */
+  public static final class Hints extends com.google.protobuf.GeneratedMessageV3
+      implements
+      // @@protoc_insertion_point(message_implements:google.cloud.documentai.v1.OcrConfig.Hints)
+      HintsOrBuilder {
+    private static final long serialVersionUID = 0L;
+    // Use Hints.newBuilder() to construct.
+    private Hints(com.google.protobuf.GeneratedMessageV3.Builder builder) {
+      super(builder);
+    }
+
+    private Hints() {
+      languageHints_ = com.google.protobuf.LazyStringArrayList.emptyList();
+    }
+
+    @java.lang.Override
+    @SuppressWarnings({"unused"})
+    protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+      return new Hints();
+    }
+
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.documentai.v1.DocumentIoProto
+          .internal_static_google_cloud_documentai_v1_OcrConfig_Hints_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.documentai.v1.DocumentIoProto
+          .internal_static_google_cloud_documentai_v1_OcrConfig_Hints_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.documentai.v1.OcrConfig.Hints.class,
+              com.google.cloud.documentai.v1.OcrConfig.Hints.Builder.class);
+    }
+
+    public static final int LANGUAGE_HINTS_FIELD_NUMBER = 1;
+
+    @SuppressWarnings("serial")
+    private com.google.protobuf.LazyStringArrayList languageHints_ =
+        com.google.protobuf.LazyStringArrayList.emptyList();
+    /**
+     *
+     *
+     * 
+     * List of BCP-47 language codes to use for OCR. In most cases, not
+     * specifying it yields the best results since it enables automatic language
+     * detection. For languages based on the Latin alphabet, setting hints is
+     * not needed. In rare cases, when the language of the text in the
+     * image is known, setting a hint will help get better results (although it
+     * will be a significant hindrance if the hint is wrong).
+     * 

+     *
+     * repeated string language_hints = 1;
+     *
+     * @return A list containing the languageHints.
+     */
+    public com.google.protobuf.ProtocolStringList getLanguageHintsList() {
+      return languageHints_;
+    }
+    /**
+     *
+     *
+     * 
+     * List of BCP-47 language codes to use for OCR. In most cases, not
+     * specifying it yields the best results since it enables automatic language
+     * detection. For languages based on the Latin alphabet, setting hints is
+     * not needed. In rare cases, when the language of the text in the
+     * image is known, setting a hint will help get better results (although it
+     * will be a significant hindrance if the hint is wrong).
+     * 

+     *
+     * repeated string language_hints = 1;
+     *
+     * @return The count of languageHints.
+     */
+    public int getLanguageHintsCount() {
+      return languageHints_.size();
+    }
+    /**
+     *
+     *
+     * 
+     * List of BCP-47 language codes to use for OCR. In most cases, not
+     * specifying it yields the best results since it enables automatic language
+     * detection. For languages based on the Latin alphabet, setting hints is
+     * not needed. In rare cases, when the language of the text in the
+     * image is known, setting a hint will help get better results (although it
+     * will be a significant hindrance if the hint is wrong).
+     * 

+     *
+     * repeated string language_hints = 1;
+     *
+     * @param index The index of the element to return.
+     * @return The languageHints at the given index.
+     */
+    public java.lang.String getLanguageHints(int index) {
+      return languageHints_.get(index);
+    }
+    /**
+     *
+     *
+     * 
+     * List of BCP-47 language codes to use for OCR. In most cases, not
+     * specifying it yields the best results since it enables automatic language
+     * detection. For languages based on the Latin alphabet, setting hints is
+     * not needed. In rare cases, when the language of the text in the
+     * image is known, setting a hint will help get better results (although it
+     * will be a significant hindrance if the hint is wrong).
+     * 

+     *
+     * repeated string language_hints = 1;
+     *
+     * @param index The index of the value to return.
+     * @return The bytes of the languageHints at the given index.
+     */
+    public com.google.protobuf.ByteString getLanguageHintsBytes(int index) {
+      return languageHints_.getByteString(index);
+    }
+
+    private byte memoizedIsInitialized = -1;
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      byte isInitialized = memoizedIsInitialized;
+      if (isInitialized == 1) return true;
+      if (isInitialized == 0) return false;
+
+      memoizedIsInitialized = 1;
+      return true;
+    }
+
+    @java.lang.Override
+    public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+      for (int i = 0; i < languageHints_.size(); i++) {
+        com.google.protobuf.GeneratedMessageV3.writeString(output, 1, languageHints_.getRaw(i));
+      }
+      getUnknownFields().writeTo(output);
+    }
+
+    @java.lang.Override
+    public int getSerializedSize() {
+      int size = memoizedSize;
+      if (size != -1) return size;
+
+      size = 0;
+      {
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+        for (int i = 0; i < languageHints_.size(); i++) {
+          dataSize += computeStringSizeNoTag(languageHints_.getRaw(i));
+        }
+        size += dataSize;
+        size += 1 * getLanguageHintsList().size();
+      }
+      size += getUnknownFields().getSerializedSize();
+      memoizedSize = size;
+      return size;
+    }
+
+    @java.lang.Override
+    public boolean equals(final java.lang.Object obj) {
+      if (obj == this) {
+        return true;
+      }
+      if (!(obj instanceof com.google.cloud.documentai.v1.OcrConfig.Hints)) {
+        return super.equals(obj);
+      }
+      com.google.cloud.documentai.v1.OcrConfig.Hints other =
+          (com.google.cloud.documentai.v1.OcrConfig.Hints) obj;
+
+      if (!getLanguageHintsList().equals(other.getLanguageHintsList())) return false;
+      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
+      return true;
+    }
+
+    @java.lang.Override
+    public int hashCode() {
+      if (memoizedHashCode != 0) {
+        return memoizedHashCode;
+      }
+      int hash = 41;
+      hash = (19 * hash) + getDescriptor().hashCode();
+      if (getLanguageHintsCount() > 0) {
+        hash = (37 * hash) + LANGUAGE_HINTS_FIELD_NUMBER;
+        hash = (53 * hash) + getLanguageHintsList().hashCode();
+      }
+      hash = (29 * hash) + getUnknownFields().hashCode();
+      memoizedHashCode = hash;
+      return hash;
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+
+    public static com.google.cloud.documentai.v1.OcrConfig.Hints parseFrom(java.nio.ByteBuffer data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.documentai.v1.OcrConfig.Hints parseFrom(
+        java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.documentai.v1.OcrConfig.Hints parseFrom(
+        com.google.protobuf.ByteString data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.documentai.v1.OcrConfig.Hints parseFrom(
+        com.google.protobuf.ByteString data,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.documentai.v1.OcrConfig.Hints parseFrom(byte[] data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.documentai.v1.OcrConfig.Hints parseFrom(
+        byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.documentai.v1.OcrConfig.Hints parseFrom(
+        java.io.InputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.documentai.v1.OcrConfig.Hints parseFrom(
+        java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    public static com.google.cloud.documentai.v1.OcrConfig.Hints parseDelimitedFrom(
+        java.io.InputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.documentai.v1.OcrConfig.Hints parseDelimitedFrom(
+        java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    public static com.google.cloud.documentai.v1.OcrConfig.Hints parseFrom(
+        com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.documentai.v1.OcrConfig.Hints parseFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    @java.lang.Override
+    public Builder newBuilderForType() {
+      return newBuilder();
+    }
+
+    public static Builder newBuilder() {
+      return DEFAULT_INSTANCE.toBuilder();
+    }
+
+    public static Builder newBuilder(com.google.cloud.documentai.v1.OcrConfig.Hints prototype) {
+      return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+    }
+
+    @java.lang.Override
+    public Builder toBuilder() {
+      return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+    }
+
+    @java.lang.Override
+    protected Builder newBuilderForType(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      Builder builder = new Builder(parent);
+      return builder;
+    }
+    /**
+     *
+     *
+     * 
+     * Hints for OCR Engine
+     * 

+     *
+     * Protobuf type {@code google.cloud.documentai.v1.OcrConfig.Hints}
+     */
+    public static final class Builder
+        extends com.google.protobuf.GeneratedMessageV3.Builder
+        implements
+        // @@protoc_insertion_point(builder_implements:google.cloud.documentai.v1.OcrConfig.Hints)
+        com.google.cloud.documentai.v1.OcrConfig.HintsOrBuilder {
+      public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+        return com.google.cloud.documentai.v1.DocumentIoProto
+            .internal_static_google_cloud_documentai_v1_OcrConfig_Hints_descriptor;
+      }
+
+      @java.lang.Override
+      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+          internalGetFieldAccessorTable() {
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+                com.google.cloud.documentai.v1.OcrConfig.Hints.class,
+                com.google.cloud.documentai.v1.OcrConfig.Hints.Builder.class);
+      }
+
+      // Construct using com.google.cloud.documentai.v1.OcrConfig.Hints.newBuilder()
+      private Builder() {}
+
+      private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+        super(parent);
+      }
+
+      @java.lang.Override
+      public Builder clear() {
+        super.clear();
+        bitField0_ = 0;
+        languageHints_ = com.google.protobuf.LazyStringArrayList.emptyList();
+        return this;
+      }
+
+      @java.lang.Override
+      public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+        return com.google.cloud.documentai.v1.DocumentIoProto
+            .internal_static_google_cloud_documentai_v1_OcrConfig_Hints_descriptor;
+      }
+
+      @java.lang.Override
+      public com.google.cloud.documentai.v1.OcrConfig.Hints getDefaultInstanceForType() {
+        return com.google.cloud.documentai.v1.OcrConfig.Hints.getDefaultInstance();
+      }
+
+      @java.lang.Override
+      public com.google.cloud.documentai.v1.OcrConfig.Hints build() {
+        com.google.cloud.documentai.v1.OcrConfig.Hints result = buildPartial();
+        if (!result.isInitialized()) {
+          throw newUninitializedMessageException(result);
+        }
+        return result;
+      }
+
+      @java.lang.Override
+      public com.google.cloud.documentai.v1.OcrConfig.Hints buildPartial() {
+        com.google.cloud.documentai.v1.OcrConfig.Hints result =
+            new com.google.cloud.documentai.v1.OcrConfig.Hints(this);
+        if (bitField0_ != 0) {
+          buildPartial0(result);
+        }
+        onBuilt();
+        return result;
+      }
+
+      private void buildPartial0(com.google.cloud.documentai.v1.OcrConfig.Hints result) {
+        int from_bitField0_ = bitField0_;
+        if (((from_bitField0_ & 0x00000001) != 0)) {
+          languageHints_.makeImmutable();
+          result.languageHints_ = languageHints_;
+        }
+      }
+
+      @java.lang.Override
+      public Builder clone() {
+        return super.clone();
+      }
+
+      @java.lang.Override
+      public Builder setField(
+          com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+        return super.setField(field, value);
+      }
+
+      @java.lang.Override
+      public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+        return super.clearField(field);
+      }
+
+      @java.lang.Override
+      public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+        return super.clearOneof(oneof);
+      }
+
+      @java.lang.Override
+      public Builder setRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field,
+          int index,
+          java.lang.Object value) {
+        return super.setRepeatedField(field, index, value);
+      }
+
+      @java.lang.Override
+      public Builder addRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+        return super.addRepeatedField(field, value);
+      }
+
+      @java.lang.Override
+      public Builder mergeFrom(com.google.protobuf.Message other) {
+        if (other instanceof com.google.cloud.documentai.v1.OcrConfig.Hints) {
+          return mergeFrom((com.google.cloud.documentai.v1.OcrConfig.Hints) other);
+        } else {
+          super.mergeFrom(other);
+          return this;
+        }
+      }
+
+      public Builder mergeFrom(com.google.cloud.documentai.v1.OcrConfig.Hints other) {
+        if (other == com.google.cloud.documentai.v1.OcrConfig.Hints.getDefaultInstance())
+          return this;
+        if (!other.languageHints_.isEmpty()) {
+          if (languageHints_.isEmpty()) {
+            languageHints_ = other.languageHints_;
+            bitField0_ |= 0x00000001;
+          } else {
+            ensureLanguageHintsIsMutable();
+            languageHints_.addAll(other.languageHints_);
+          }
+          onChanged();
+        }
+        this.mergeUnknownFields(other.getUnknownFields());
+        onChanged();
+        return this;
+      }
+
+      @java.lang.Override
+      public final boolean isInitialized() {
+        return true;
+      }
+
+      @java.lang.Override
+      public Builder mergeFrom(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+        if (extensionRegistry == null) {
+          throw new java.lang.NullPointerException();
+        }
+        try {
+          boolean done = false;
+          while (!done) {
+            int tag = input.readTag();
+            switch (tag) {
+              case 0:
+                done = true;
+                break;
+              case 10:
+                {
+                  java.lang.String s = input.readStringRequireUtf8();
+                  ensureLanguageHintsIsMutable();
+                  languageHints_.add(s);
+                  break;
+                } // case 10
+              default:
+                {
+                  if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                    done = true; // was an endgroup tag
+                  }
+                  break;
+                } // default:
+            } // switch (tag)
+          } // while (!done)
+        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          throw e.unwrapIOException();
+        } finally {
+          onChanged();
+        } // finally
+        return this;
+      }
+
+      private int bitField0_;
+
+      private com.google.protobuf.LazyStringArrayList languageHints_ =
+          com.google.protobuf.LazyStringArrayList.emptyList();
+
+      private void ensureLanguageHintsIsMutable() {
+        if (!languageHints_.isModifiable()) {
+          languageHints_ = new com.google.protobuf.LazyStringArrayList(languageHints_);
+        }
+        bitField0_ |= 0x00000001;
+      }
+      /**
+       *
+       *
+       * 
+       * List of BCP-47 language codes to use for OCR. In most cases, not
+       * specifying it yields the best results since it enables automatic language
+       * detection. For languages based on the Latin alphabet, setting hints is
+       * not needed. In rare cases, when the language of the text in the
+       * image is known, setting a hint will help get better results (although it
+       * will be a significant hindrance if the hint is wrong).
+       * 

+       *
+       * repeated string language_hints = 1;
+       *
+       * @return A list containing the languageHints.
+       */
+      public com.google.protobuf.ProtocolStringList getLanguageHintsList() {
+        languageHints_.makeImmutable();
+        return languageHints_;
+      }
+      /**
+       *
+       *
+       * 
+       * List of BCP-47 language codes to use for OCR. In most cases, not
+       * specifying it yields the best results since it enables automatic language
+       * detection. For languages based on the Latin alphabet, setting hints is
+       * not needed. In rare cases, when the language of the text in the
+       * image is known, setting a hint will help get better results (although it
+       * will be a significant hindrance if the hint is wrong).
+       * 

+       *
+       * repeated string language_hints = 1;
+       *
+       * @return The count of languageHints.
+       */
+      public int getLanguageHintsCount() {
+        return languageHints_.size();
+      }
+      /**
+       *
+       *
+       * 
+       * List of BCP-47 language codes to use for OCR. In most cases, not
+       * specifying it yields the best results since it enables automatic language
+       * detection. For languages based on the Latin alphabet, setting hints is
+       * not needed. In rare cases, when the language of the text in the
+       * image is known, setting a hint will help get better results (although it
+       * will be a significant hindrance if the hint is wrong).
+       * 

+       *
+       * repeated string language_hints = 1;
+       *
+       * @param index The index of the element to return.
+       * @return The languageHints at the given index.
+       */
+      public java.lang.String getLanguageHints(int index) {
+        return languageHints_.get(index);
+      }
+      /**
+       *
+       *
+       * 
+       * List of BCP-47 language codes to use for OCR. In most cases, not
+       * specifying it yields the best results since it enables automatic language
+       * detection. For languages based on the Latin alphabet, setting hints is
+       * not needed. In rare cases, when the language of the text in the
+       * image is known, setting a hint will help get better results (although it
+       * will be a significant hindrance if the hint is wrong).
+       * 

+       *
+       * repeated string language_hints = 1;
+       *
+       * @param index The index of the value to return.
+       * @return The bytes of the languageHints at the given index.
+       */
+      public com.google.protobuf.ByteString getLanguageHintsBytes(int index) {
+        return languageHints_.getByteString(index);
+      }
+      /**
+       *
+       *
+       * 
+       * List of BCP-47 language codes to use for OCR. In most cases, not
+       * specifying it yields the best results since it enables automatic language
+       * detection. For languages based on the Latin alphabet, setting hints is
+       * not needed. In rare cases, when the language of the text in the
+       * image is known, setting a hint will help get better results (although it
+       * will be a significant hindrance if the hint is wrong).
+       * 

+       *
+       * repeated string language_hints = 1;
+       *
+       * @param index The index to set the value at.
+       * @param value The languageHints to set.
+       * @return This builder for chaining.
+       */
+      public Builder setLanguageHints(int index, java.lang.String value) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureLanguageHintsIsMutable();
+        languageHints_.set(index, value);
+        bitField0_ |= 0x00000001;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * List of BCP-47 language codes to use for OCR. In most cases, not
+       * specifying it yields the best results since it enables automatic language
+       * detection. For languages based on the Latin alphabet, setting hints is
+       * not needed. In rare cases, when the language of the text in the
+       * image is known, setting a hint will help get better results (although it
+       * will be a significant hindrance if the hint is wrong).
+       * 

+       *
+       * repeated string language_hints = 1;
+       *
+       * @param value The languageHints to add.
+       * @return This builder for chaining.
+       */
+      public Builder addLanguageHints(java.lang.String value) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureLanguageHintsIsMutable();
+        languageHints_.add(value);
+        bitField0_ |= 0x00000001;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * List of BCP-47 language codes to use for OCR. In most cases, not
+       * specifying it yields the best results since it enables automatic language
+       * detection. For languages based on the Latin alphabet, setting hints is
+       * not needed. In rare cases, when the language of the text in the
+       * image is known, setting a hint will help get better results (although it
+       * will be a significant hindrance if the hint is wrong).
+       * 

+       *
+       * repeated string language_hints = 1;
+       *
+       * @param values The languageHints to add.
+       * @return This builder for chaining.
+       */
+      public Builder addAllLanguageHints(java.lang.Iterable values) {
+        ensureLanguageHintsIsMutable();
+        com.google.protobuf.AbstractMessageLite.Builder.addAll(values, languageHints_);
+        bitField0_ |= 0x00000001;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * List of BCP-47 language codes to use for OCR. In most cases, not
+       * specifying it yields the best results since it enables automatic language
+       * detection. For languages based on the Latin alphabet, setting hints is
+       * not needed. In rare cases, when the language of the text in the
+       * image is known, setting a hint will help get better results (although it
+       * will be a significant hindrance if the hint is wrong).
+       * 

+       *
+       * repeated string language_hints = 1;
+       *
+       * @return This builder for chaining.
+       */
+      public Builder clearLanguageHints() {
+        languageHints_ = com.google.protobuf.LazyStringArrayList.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000001);
+        ;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * List of BCP-47 language codes to use for OCR. In most cases, not
+       * specifying it yields the best results since it enables automatic language
+       * detection. For languages based on the Latin alphabet, setting hints is
+       * not needed. In rare cases, when the language of the text in the
+       * image is known, setting a hint will help get better results (although it
+       * will be a significant hindrance if the hint is wrong).
+       * 

+       *
+       * repeated string language_hints = 1;
+       *
+       * @param value The bytes of the languageHints to add.
+       * @return This builder for chaining.
+       */
+      public Builder addLanguageHintsBytes(com.google.protobuf.ByteString value) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        checkByteStringIsUtf8(value);
+        ensureLanguageHintsIsMutable();
+        languageHints_.add(value);
+        bitField0_ |= 0x00000001;
+        onChanged();
+        return this;
+      }
+
+      @java.lang.Override
+      public final Builder setUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.setUnknownFields(unknownFields);
+      }
+
+      @java.lang.Override
+      public final Builder mergeUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.mergeUnknownFields(unknownFields);
+      }
+
+      // @@protoc_insertion_point(builder_scope:google.cloud.documentai.v1.OcrConfig.Hints)
+    }
+
+    // @@protoc_insertion_point(class_scope:google.cloud.documentai.v1.OcrConfig.Hints)
+    private static final com.google.cloud.documentai.v1.OcrConfig.Hints DEFAULT_INSTANCE;
+
+    static {
+      DEFAULT_INSTANCE = new com.google.cloud.documentai.v1.OcrConfig.Hints();
+    }
+
+    public static com.google.cloud.documentai.v1.OcrConfig.Hints getDefaultInstance() {
+      return DEFAULT_INSTANCE;
+    }
+
+    private static final com.google.protobuf.Parser PARSER =
+        new com.google.protobuf.AbstractParser() {
+          @java.lang.Override
+          public Hints parsePartialFrom(
+              com.google.protobuf.CodedInputStream input,
+              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+              throws com.google.protobuf.InvalidProtocolBufferException {
+            Builder builder = newBuilder();
+            try {
+              builder.mergeFrom(input, extensionRegistry);
+            } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+              throw e.setUnfinishedMessage(builder.buildPartial());
+            } catch (com.google.protobuf.UninitializedMessageException e) {
+              throw e.asInvalidProtocolBufferException()
+                  .setUnfinishedMessage(builder.buildPartial());
+            } catch (java.io.IOException e) {
+              throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                  .setUnfinishedMessage(builder.buildPartial());
+            }
+            return builder.buildPartial();
+          }
+        };
+
+    public static com.google.protobuf.Parser parser() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Parser getParserForType() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.documentai.v1.OcrConfig.Hints getDefaultInstanceForType() {
+      return DEFAULT_INSTANCE;
+    }
+  }
+
+  public static final int HINTS_FIELD_NUMBER = 2;
+  private com.google.cloud.documentai.v1.OcrConfig.Hints hints_;
+  /**
+   *
+   *
+   * 
+   * Hints for the OCR model.
+   * 

+   *
+   * .google.cloud.documentai.v1.OcrConfig.Hints hints = 2;
+   *
+   * @return Whether the hints field is set.
+   */
+  @java.lang.Override
+  public boolean hasHints() {
+    return hints_ != null;
+  }
+  /**
+   *
+   *
+   * 
+   * Hints for the OCR model.
+   * 

+   *
+   * .google.cloud.documentai.v1.OcrConfig.Hints hints = 2;
+   *
+   * @return The hints.
+   */
+  @java.lang.Override
+  public com.google.cloud.documentai.v1.OcrConfig.Hints getHints() {
+    return hints_ == null
+        ? com.google.cloud.documentai.v1.OcrConfig.Hints.getDefaultInstance()
+        : hints_;
+  }
+  /**
+   *
+   *
+   * 
+   * Hints for the OCR model.
+   * 

+   *
+   * .google.cloud.documentai.v1.OcrConfig.Hints hints = 2;
+   */
+  @java.lang.Override
+  public com.google.cloud.documentai.v1.OcrConfig.HintsOrBuilder getHintsOrBuilder() {
+    return hints_ == null
+        ? com.google.cloud.documentai.v1.OcrConfig.Hints.getDefaultInstance()
+        : hints_;
+  }
+
+  public static final int ENABLE_NATIVE_PDF_PARSING_FIELD_NUMBER = 3;
+  private boolean enableNativePdfParsing_ = false;
+  /**
+   *
+   *
+   * 
+   * Enables special handling for PDFs with existing text information. Results
+   * in better text extraction quality in such PDF inputs.
+   * 

+   *
+   * bool enable_native_pdf_parsing = 3;
+   *
+   * @return The enableNativePdfParsing.
+   */
+  @java.lang.Override
+  public boolean getEnableNativePdfParsing() {
+    return enableNativePdfParsing_;
+  }
+
+  public static final int ENABLE_IMAGE_QUALITY_SCORES_FIELD_NUMBER = 4;
+  private boolean enableImageQualityScores_ = false;
+  /**
+   *
+   *
+   * 
+   * Enables intelligent document quality scores after OCR. Can help with
+   * diagnosing why OCR responses are of poor quality for a given input.
+   * Adds additional latency comparable to regular OCR to the process call.
+   * 

+   *
+   * bool enable_image_quality_scores = 4;
+   *
+   * @return The enableImageQualityScores.
+   */
+  @java.lang.Override
+  public boolean getEnableImageQualityScores() {
+    return enableImageQualityScores_;
+  }
+
+  public static final int ADVANCED_OCR_OPTIONS_FIELD_NUMBER = 5;
+
+  @SuppressWarnings("serial")
+  private com.google.protobuf.LazyStringArrayList advancedOcrOptions_ =
+      com.google.protobuf.LazyStringArrayList.emptyList();
+  /**
+   *
+   *
+   * 
+   * A list of advanced OCR options to further fine-tune OCR behavior. Current
+   * valid values are:
+   *
+   * - `legacy_layout`: a heuristics layout detection algorithm, which serves as
+   * an alternative to the current ML-based layout detection algorithm.
+   * Customers can choose the best suitable layout algorithm based on their
+   * situation.
+   * 

+   *
+   * repeated string advanced_ocr_options = 5;
+   *
+   * @return A list containing the advancedOcrOptions.
+   */
+  public com.google.protobuf.ProtocolStringList getAdvancedOcrOptionsList() {
+    return advancedOcrOptions_;
+  }
+  /**
+   *
+   *
+   * 
+   * A list of advanced OCR options to further fine-tune OCR behavior. Current
+   * valid values are:
+   *
+   * - `legacy_layout`: a heuristics layout detection algorithm, which serves as
+   * an alternative to the current ML-based layout detection algorithm.
+   * Customers can choose the best suitable layout algorithm based on their
+   * situation.
+   * 

+   *
+   * repeated string advanced_ocr_options = 5;
+   *
+   * @return The count of advancedOcrOptions.
+   */
+  public int getAdvancedOcrOptionsCount() {
+    return advancedOcrOptions_.size();
+  }
+  /**
+   *
+   *
+   * 
+   * A list of advanced OCR options to further fine-tune OCR behavior. Current
+   * valid values are:
+   *
+   * - `legacy_layout`: a heuristics layout detection algorithm, which serves as
+   * an alternative to the current ML-based layout detection algorithm.
+   * Customers can choose the best suitable layout algorithm based on their
+   * situation.
+   * 

+   *
+   * repeated string advanced_ocr_options = 5;
+   *
+   * @param index The index of the element to return.
+   * @return The advancedOcrOptions at the given index.
+   */
+  public java.lang.String getAdvancedOcrOptions(int index) {
+    return advancedOcrOptions_.get(index);
+  }
+  /**
+   *
+   *
+   * 
+   * A list of advanced OCR options to further fine-tune OCR behavior. Current
+   * valid values are:
+   *
+   * - `legacy_layout`: a heuristics layout detection algorithm, which serves as
+   * an alternative to the current ML-based layout detection algorithm.
+   * Customers can choose the best suitable layout algorithm based on their
+   * situation.
+   * 

+   *
+   * repeated string advanced_ocr_options = 5;
+   *
+   * @param index The index of the value to return.
+   * @return The bytes of the advancedOcrOptions at the given index.
+   */
+  public com.google.protobuf.ByteString getAdvancedOcrOptionsBytes(int index) {
+    return advancedOcrOptions_.getByteString(index);
+  }
+
+  public static final int ENABLE_SYMBOL_FIELD_NUMBER = 6;
+  private boolean enableSymbol_ = false;
+  /**
+   *
+   *
+   * 
+   * Includes symbol level OCR information if set to true.
+   * 

+   *
+   * bool enable_symbol = 6;
+   *
+   * @return The enableSymbol.
+   */
+  @java.lang.Override
+  public boolean getEnableSymbol() {
+    return enableSymbol_;
+  }
+
+  public static final int COMPUTE_STYLE_INFO_FIELD_NUMBER = 8;
+  private boolean computeStyleInfo_ = false;
+  /**
+   *
+   *
+   * 
+   * Turn on font id model and returns font style information.
+   * 

+   *
+   * bool compute_style_info = 8;
+   *
+   * @return The computeStyleInfo.
+   */
+  @java.lang.Override
+  public boolean getComputeStyleInfo() {
+    return computeStyleInfo_;
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (hints_ != null) {
+      output.writeMessage(2, getHints());
+    }
+    if (enableNativePdfParsing_ != false) {
+      output.writeBool(3, enableNativePdfParsing_);
+    }
+    if (enableImageQualityScores_ != false) {
+      output.writeBool(4, enableImageQualityScores_);
+    }
+    for (int i = 0; i < advancedOcrOptions_.size(); i++) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 5, advancedOcrOptions_.getRaw(i));
+    }
+    if (enableSymbol_ != false) {
+      output.writeBool(6, enableSymbol_);
+    }
+    if (computeStyleInfo_ != false) {
+      output.writeBool(8, computeStyleInfo_);
+    }
+    getUnknownFields().writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (hints_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(2, getHints());
+    }
+    if (enableNativePdfParsing_ != false) {
+      size += com.google.protobuf.CodedOutputStream.computeBoolSize(3, enableNativePdfParsing_);
+    }
+    if (enableImageQualityScores_ != false) {
+      size += com.google.protobuf.CodedOutputStream.computeBoolSize(4, enableImageQualityScores_);
+    }
+    {
+      int dataSize = 0;
+      for (int i = 0; i < advancedOcrOptions_.size(); i++) {
+        dataSize += computeStringSizeNoTag(advancedOcrOptions_.getRaw(i));
+      }
+      size += dataSize;
+      size += 1 * getAdvancedOcrOptionsList().size();
+    }
+    if (enableSymbol_ != false) {
+      size += com.google.protobuf.CodedOutputStream.computeBoolSize(6, enableSymbol_);
+    }
+    if (computeStyleInfo_ != false) {
+      size += com.google.protobuf.CodedOutputStream.computeBoolSize(8, computeStyleInfo_);
+    }
+    size += getUnknownFields().getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.documentai.v1.OcrConfig)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.documentai.v1.OcrConfig other = (com.google.cloud.documentai.v1.OcrConfig) obj;
+
+    if (hasHints() != other.hasHints()) return false;
+    if (hasHints()) {
+      if (!getHints().equals(other.getHints())) return false;
+    }
+    if (getEnableNativePdfParsing() != other.getEnableNativePdfParsing()) return false;
+    if (getEnableImageQualityScores() != other.getEnableImageQualityScores()) return false;
+    if (!getAdvancedOcrOptionsList().equals(other.getAdvancedOcrOptionsList())) return false;
+    if (getEnableSymbol() != other.getEnableSymbol()) return false;
+    if (getComputeStyleInfo() != other.getComputeStyleInfo()) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    if (hasHints()) {
+      hash = (37 * hash) + HINTS_FIELD_NUMBER;
+      hash = (53 * hash) + getHints().hashCode();
+    }
+    hash = (37 * hash) + ENABLE_NATIVE_PDF_PARSING_FIELD_NUMBER;
+    hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getEnableNativePdfParsing());
+    hash = (37 * hash) + ENABLE_IMAGE_QUALITY_SCORES_FIELD_NUMBER;
+    hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getEnableImageQualityScores());
+    if (getAdvancedOcrOptionsCount() > 0) {
+      hash = (37 * hash) + ADVANCED_OCR_OPTIONS_FIELD_NUMBER;
+      hash = (53 * hash) + getAdvancedOcrOptionsList().hashCode();
+    }
+    hash = (37 * hash) + ENABLE_SYMBOL_FIELD_NUMBER;
+    hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getEnableSymbol());
+    hash = (37 * hash) + COMPUTE_STYLE_INFO_FIELD_NUMBER;
+    hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getComputeStyleInfo());
+    hash = (29 * hash) + getUnknownFields().hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.documentai.v1.OcrConfig parseFrom(java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.documentai.v1.OcrConfig parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.documentai.v1.OcrConfig parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.documentai.v1.OcrConfig parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.documentai.v1.OcrConfig parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.documentai.v1.OcrConfig parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.documentai.v1.OcrConfig parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.documentai.v1.OcrConfig parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.documentai.v1.OcrConfig parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.documentai.v1.OcrConfig parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.documentai.v1.OcrConfig parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.documentai.v1.OcrConfig parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(com.google.cloud.documentai.v1.OcrConfig prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * 
+   * Config for Document OCR.
+   * 

+   *
+   * Protobuf type {@code google.cloud.documentai.v1.OcrConfig}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.documentai.v1.OcrConfig)
+      com.google.cloud.documentai.v1.OcrConfigOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.documentai.v1.DocumentIoProto
+          .internal_static_google_cloud_documentai_v1_OcrConfig_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.documentai.v1.DocumentIoProto
+          .internal_static_google_cloud_documentai_v1_OcrConfig_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.documentai.v1.OcrConfig.class,
+              com.google.cloud.documentai.v1.OcrConfig.Builder.class);
+    }
+
+    // Construct using com.google.cloud.documentai.v1.OcrConfig.newBuilder()
+    private Builder() {}
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      bitField0_ = 0;
+      hints_ = null;
+      if (hintsBuilder_ != null) {
+        hintsBuilder_.dispose();
+        hintsBuilder_ = null;
+      }
+      enableNativePdfParsing_ = false;
+      enableImageQualityScores_ = false;
+      advancedOcrOptions_ = com.google.protobuf.LazyStringArrayList.emptyList();
+      enableSymbol_ = false;
+      computeStyleInfo_ = false;
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.documentai.v1.DocumentIoProto
+          .internal_static_google_cloud_documentai_v1_OcrConfig_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.documentai.v1.OcrConfig getDefaultInstanceForType() {
+      return com.google.cloud.documentai.v1.OcrConfig.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.documentai.v1.OcrConfig build() {
+      com.google.cloud.documentai.v1.OcrConfig result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.documentai.v1.OcrConfig buildPartial() {
+      com.google.cloud.documentai.v1.OcrConfig result =
+          new com.google.cloud.documentai.v1.OcrConfig(this);
+      if (bitField0_ != 0) {
+        buildPartial0(result);
+      }
+      onBuilt();
+      return result;
+    }
+
+    private void buildPartial0(com.google.cloud.documentai.v1.OcrConfig result) {
+      int from_bitField0_ = bitField0_;
+      if (((from_bitField0_ & 0x00000001) != 0)) {
+        result.hints_ = hintsBuilder_ == null ? hints_ : hintsBuilder_.build();
+      }
+      if (((from_bitField0_ & 0x00000002) != 0)) {
+        result.enableNativePdfParsing_ = enableNativePdfParsing_;
+      }
+      if (((from_bitField0_ & 0x00000004) != 0)) {
+        result.enableImageQualityScores_ = enableImageQualityScores_;
+      }
+      if (((from_bitField0_ & 0x00000008) != 0)) {
+        advancedOcrOptions_.makeImmutable();
+        result.advancedOcrOptions_ = advancedOcrOptions_;
+      }
+      if (((from_bitField0_ & 0x00000010) != 0)) {
+        result.enableSymbol_ = enableSymbol_;
+      }
+      if (((from_bitField0_ & 0x00000020) != 0)) {
+        result.computeStyleInfo_ = computeStyleInfo_;
+      }
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.documentai.v1.OcrConfig) {
+        return mergeFrom((com.google.cloud.documentai.v1.OcrConfig) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.documentai.v1.OcrConfig other) {
+      if (other == com.google.cloud.documentai.v1.OcrConfig.getDefaultInstance()) return this;
+      if (other.hasHints()) {
+        mergeHints(other.getHints());
+      }
+      if (other.getEnableNativePdfParsing() != false) {
+        setEnableNativePdfParsing(other.getEnableNativePdfParsing());
+      }
+      if (other.getEnableImageQualityScores() != false) {
+        setEnableImageQualityScores(other.getEnableImageQualityScores());
+      }
+      if (!other.advancedOcrOptions_.isEmpty()) {
+        if (advancedOcrOptions_.isEmpty()) {
+          advancedOcrOptions_ = other.advancedOcrOptions_;
+          bitField0_ |= 0x00000008;
+        } else {
+          ensureAdvancedOcrOptionsIsMutable();
+          advancedOcrOptions_.addAll(other.advancedOcrOptions_);
+        }
+        onChanged();
+      }
+      if (other.getEnableSymbol() != false) {
+        setEnableSymbol(other.getEnableSymbol());
+      }
+      if (other.getComputeStyleInfo() != false) {
+        setComputeStyleInfo(other.getComputeStyleInfo());
+      }
+      this.mergeUnknownFields(other.getUnknownFields());
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
+      try {
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 18:
+              {
+                input.readMessage(getHintsFieldBuilder().getBuilder(), extensionRegistry);
+                bitField0_ |= 0x00000001;
+                break;
+              } // case 18
+            case 24:
+              {
+                enableNativePdfParsing_ = input.readBool();
+                bitField0_ |= 0x00000002;
+                break;
+              } // case 24
+            case 32:
+              {
+                enableImageQualityScores_ = input.readBool();
+                bitField0_ |= 0x00000004;
+                break;
+              } // case 32
+            case 42:
+              {
+                java.lang.String s = input.readStringRequireUtf8();
+                ensureAdvancedOcrOptionsIsMutable();
+                advancedOcrOptions_.add(s);
+                break;
+              } // case 42
+            case 48:
+              {
+                enableSymbol_ = input.readBool();
+                bitField0_ |= 0x00000010;
+                break;
+              } // case 48
+            case 64:
+              {
+                computeStyleInfo_ = input.readBool();
+                bitField0_ |= 0x00000020;
+                break;
+              } // case 64
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        throw e.unwrapIOException();
+      } finally {
+        onChanged();
+      } // finally
+      return this;
+    }
+
+    private int bitField0_;
+
+    private com.google.cloud.documentai.v1.OcrConfig.Hints hints_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.documentai.v1.OcrConfig.Hints,
+            com.google.cloud.documentai.v1.OcrConfig.Hints.Builder,
+            com.google.cloud.documentai.v1.OcrConfig.HintsOrBuilder>
+        hintsBuilder_;
+    /**
+     *
+     *
+     * 
+     * Hints for the OCR model.
+     * 

+     *
+     * .google.cloud.documentai.v1.OcrConfig.Hints hints = 2;
+     *
+     * @return Whether the hints field is set.
+     */
+    public boolean hasHints() {
+      return ((bitField0_ & 0x00000001) != 0);
+    }
+    /**
+     *
+     *
+     * 
+     * Hints for the OCR model.
+     * 

+     *
+     * .google.cloud.documentai.v1.OcrConfig.Hints hints = 2;
+     *
+     * @return The hints.
+     */
+    public com.google.cloud.documentai.v1.OcrConfig.Hints getHints() {
+      if (hintsBuilder_ == null) {
+        return hints_ == null
+            ? com.google.cloud.documentai.v1.OcrConfig.Hints.getDefaultInstance()
+            : hints_;
+      } else {
+        return hintsBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Hints for the OCR model.
+     * 

+     *
+     * .google.cloud.documentai.v1.OcrConfig.Hints hints = 2;
+     */
+    public Builder setHints(com.google.cloud.documentai.v1.OcrConfig.Hints value) {
+      if (hintsBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        hints_ = value;
+      } else {
+        hintsBuilder_.setMessage(value);
+      }
+      bitField0_ |= 0x00000001;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Hints for the OCR model.
+     * 

+     *
+     * .google.cloud.documentai.v1.OcrConfig.Hints hints = 2;
+     */
+    public Builder setHints(
+        com.google.cloud.documentai.v1.OcrConfig.Hints.Builder builderForValue) {
+      if (hintsBuilder_ == null) {
+        hints_ = builderForValue.build();
+      } else {
+        hintsBuilder_.setMessage(builderForValue.build());
+      }
+      bitField0_ |= 0x00000001;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Hints for the OCR model.
+     * 

+     *
+     * .google.cloud.documentai.v1.OcrConfig.Hints hints = 2;
+     */
+    public Builder mergeHints(com.google.cloud.documentai.v1.OcrConfig.Hints value) {
+      if (hintsBuilder_ == null) {
+        if (((bitField0_ & 0x00000001) != 0)
+            && hints_ != null
+            && hints_ != com.google.cloud.documentai.v1.OcrConfig.Hints.getDefaultInstance()) {
+          getHintsBuilder().mergeFrom(value);
+        } else {
+          hints_ = value;
+        }
+      } else {
+        hintsBuilder_.mergeFrom(value);
+      }
+      bitField0_ |= 0x00000001;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Hints for the OCR model.
+     * 

+     *
+     * .google.cloud.documentai.v1.OcrConfig.Hints hints = 2;
+     */
+    public Builder clearHints() {
+      bitField0_ = (bitField0_ & ~0x00000001);
+      hints_ = null;
+      if (hintsBuilder_ != null) {
+        hintsBuilder_.dispose();
+        hintsBuilder_ = null;
+      }
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Hints for the OCR model.
+     * 

+     *
+     * .google.cloud.documentai.v1.OcrConfig.Hints hints = 2;
+     */
+    public com.google.cloud.documentai.v1.OcrConfig.Hints.Builder getHintsBuilder() {
+      bitField0_ |= 0x00000001;
+      onChanged();
+      return getHintsFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * 
+     * Hints for the OCR model.
+     * 

+     *
+     * .google.cloud.documentai.v1.OcrConfig.Hints hints = 2;
+     */
+    public com.google.cloud.documentai.v1.OcrConfig.HintsOrBuilder getHintsOrBuilder() {
+      if (hintsBuilder_ != null) {
+        return hintsBuilder_.getMessageOrBuilder();
+      } else {
+        return hints_ == null
+            ? com.google.cloud.documentai.v1.OcrConfig.Hints.getDefaultInstance()
+            : hints_;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Hints for the OCR model.
+     * 

+     *
+     * .google.cloud.documentai.v1.OcrConfig.Hints hints = 2;
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.documentai.v1.OcrConfig.Hints,
+            com.google.cloud.documentai.v1.OcrConfig.Hints.Builder,
+            com.google.cloud.documentai.v1.OcrConfig.HintsOrBuilder>
+        getHintsFieldBuilder() {
+      if (hintsBuilder_ == null) {
+        hintsBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.documentai.v1.OcrConfig.Hints,
+                com.google.cloud.documentai.v1.OcrConfig.Hints.Builder,
+                com.google.cloud.documentai.v1.OcrConfig.HintsOrBuilder>(
+                getHints(), getParentForChildren(), isClean());
+        hints_ = null;
+      }
+      return hintsBuilder_;
+    }
+
+    private boolean enableNativePdfParsing_;
+    /**
+     *
+     *
+     * 
+     * Enables special handling for PDFs with existing text information. Results
+     * in better text extraction quality in such PDF inputs.
+     * 

+     *
+     * bool enable_native_pdf_parsing = 3;
+     *
+     * @return The enableNativePdfParsing.
+     */
+    @java.lang.Override
+    public boolean getEnableNativePdfParsing() {
+      return enableNativePdfParsing_;
+    }
+    /**
+     *
+     *
+     * 
+     * Enables special handling for PDFs with existing text information. Results
+     * in better text extraction quality in such PDF inputs.
+     * 

+     *
+     * bool enable_native_pdf_parsing = 3;
+     *
+     * @param value The enableNativePdfParsing to set.
+     * @return This builder for chaining.
+     */
+    public Builder setEnableNativePdfParsing(boolean value) {
+
+      enableNativePdfParsing_ = value;
+      bitField0_ |= 0x00000002;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Enables special handling for PDFs with existing text information. Results
+     * in better text extraction quality in such PDF inputs.
+     * 

+     *
+     * bool enable_native_pdf_parsing = 3;
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearEnableNativePdfParsing() {
+      bitField0_ = (bitField0_ & ~0x00000002);
+      enableNativePdfParsing_ = false;
+      onChanged();
+      return this;
+    }
+
+    private boolean enableImageQualityScores_;
+    /**
+     *
+     *
+     * 
+     * Enables intelligent document quality scores after OCR. Can help with
+     * diagnosing why OCR responses are of poor quality for a given input.
+     * Adds additional latency comparable to regular OCR to the process call.
+     * 

+     *
+     * bool enable_image_quality_scores = 4;
+     *
+     * @return The enableImageQualityScores.
+     */
+    @java.lang.Override
+    public boolean getEnableImageQualityScores() {
+      return enableImageQualityScores_;
+    }
+    /**
+     *
+     *
+     * 
+     * Enables intelligent document quality scores after OCR. Can help with
+     * diagnosing why OCR responses are of poor quality for a given input.
+     * Adds additional latency comparable to regular OCR to the process call.
+     * 

+     *
+     * bool enable_image_quality_scores = 4;
+     *
+     * @param value The enableImageQualityScores to set.
+     * @return This builder for chaining.
+     */
+    public Builder setEnableImageQualityScores(boolean value) {
+
+      enableImageQualityScores_ = value;
+      bitField0_ |= 0x00000004;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Enables intelligent document quality scores after OCR. Can help with
+     * diagnosing why OCR responses are of poor quality for a given input.
+     * Adds additional latency comparable to regular OCR to the process call.
+     * 

+     *
+     * bool enable_image_quality_scores = 4;
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearEnableImageQualityScores() {
+      bitField0_ = (bitField0_ & ~0x00000004);
+      enableImageQualityScores_ = false;
+      onChanged();
+      return this;
+    }
+
+    private com.google.protobuf.LazyStringArrayList advancedOcrOptions_ =
+        com.google.protobuf.LazyStringArrayList.emptyList();
+
+    private void ensureAdvancedOcrOptionsIsMutable() {
+      if (!advancedOcrOptions_.isModifiable()) {
+        advancedOcrOptions_ = new com.google.protobuf.LazyStringArrayList(advancedOcrOptions_);
+      }
+      bitField0_ |= 0x00000008;
+    }
+    /**
+     *
+     *
+     * 
+     * A list of advanced OCR options to further fine-tune OCR behavior. Current
+     * valid values are:
+     *
+     * - `legacy_layout`: a heuristics layout detection algorithm, which serves as
+     * an alternative to the current ML-based layout detection algorithm.
+     * Customers can choose the best suitable layout algorithm based on their
+     * situation.
+     * 

+     *
+     * repeated string advanced_ocr_options = 5;
+     *
+     * @return A list containing the advancedOcrOptions.
+     */
+    public com.google.protobuf.ProtocolStringList getAdvancedOcrOptionsList() {
+      advancedOcrOptions_.makeImmutable();
+      return advancedOcrOptions_;
+    }
+    /**
+     *
+     *
+     * 
+     * A list of advanced OCR options to further fine-tune OCR behavior. Current
+     * valid values are:
+     *
+     * - `legacy_layout`: a heuristics layout detection algorithm, which serves as
+     * an alternative to the current ML-based layout detection algorithm.
+     * Customers can choose the best suitable layout algorithm based on their
+     * situation.
+     * 

+     *
+     * repeated string advanced_ocr_options = 5;
+     *
+     * @return The count of advancedOcrOptions.
+     */
+    public int getAdvancedOcrOptionsCount() {
+      return advancedOcrOptions_.size();
+    }
+    /**
+     *
+     *
+     * 
+     * A list of advanced OCR options to further fine-tune OCR behavior. Current
+     * valid values are:
+     *
+     * - `legacy_layout`: a heuristics layout detection algorithm, which serves as
+     * an alternative to the current ML-based layout detection algorithm.
+     * Customers can choose the best suitable layout algorithm based on their
+     * situation.
+     * 

+     *
+     * repeated string advanced_ocr_options = 5;
+     *
+     * @param index The index of the element to return.
+     * @return The advancedOcrOptions at the given index.
+     */
+    public java.lang.String getAdvancedOcrOptions(int index) {
+      return advancedOcrOptions_.get(index);
+    }
+    /**
+     *
+     *
+     * 
+     * A list of advanced OCR options to further fine-tune OCR behavior. Current
+     * valid values are:
+     *
+     * - `legacy_layout`: a heuristics layout detection algorithm, which serves as
+     * an alternative to the current ML-based layout detection algorithm.
+     * Customers can choose the best suitable layout algorithm based on their
+     * situation.
+     * 

+     *
+     * repeated string advanced_ocr_options = 5;
+     *
+     * @param index The index of the value to return.
+     * @return The bytes of the advancedOcrOptions at the given index.
+     */
+    public com.google.protobuf.ByteString getAdvancedOcrOptionsBytes(int index) {
+      return advancedOcrOptions_.getByteString(index);
+    }
+    /**
+     *
+     *
+     * 
+     * A list of advanced OCR options to further fine-tune OCR behavior. Current
+     * valid values are:
+     *
+     * - `legacy_layout`: a heuristics layout detection algorithm, which serves as
+     * an alternative to the current ML-based layout detection algorithm.
+     * Customers can choose the best suitable layout algorithm based on their
+     * situation.
+     * 

+     *
+     * repeated string advanced_ocr_options = 5;
+     *
+     * @param index The index to set the value at.
+     * @param value The advancedOcrOptions to set.
+     * @return This builder for chaining.
+     */
+    public Builder setAdvancedOcrOptions(int index, java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      ensureAdvancedOcrOptionsIsMutable();
+      advancedOcrOptions_.set(index, value);
+      bitField0_ |= 0x00000008;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * A list of advanced OCR options to further fine-tune OCR behavior. Current
+     * valid values are:
+     *
+     * - `legacy_layout`: a heuristics layout detection algorithm, which serves as
+     * an alternative to the current ML-based layout detection algorithm.
+     * Customers can choose the best suitable layout algorithm based on their
+     * situation.
+     * 

+     *
+     * repeated string advanced_ocr_options = 5;
+     *
+     * @param value The advancedOcrOptions to add.
+     * @return This builder for chaining.
+     */
+    public Builder addAdvancedOcrOptions(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      ensureAdvancedOcrOptionsIsMutable();
+      advancedOcrOptions_.add(value);
+      bitField0_ |= 0x00000008;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * A list of advanced OCR options to further fine-tune OCR behavior. Current
+     * valid values are:
+     *
+     * - `legacy_layout`: a heuristics layout detection algorithm, which serves as
+     * an alternative to the current ML-based layout detection algorithm.
+     * Customers can choose the best suitable layout algorithm based on their
+     * situation.
+     * 

+     *
+     * repeated string advanced_ocr_options = 5;
+     *
+     * @param values The advancedOcrOptions to add.
+     * @return This builder for chaining.
+     */
+    public Builder addAllAdvancedOcrOptions(java.lang.Iterable values) {
+      ensureAdvancedOcrOptionsIsMutable();
+      com.google.protobuf.AbstractMessageLite.Builder.addAll(values, advancedOcrOptions_);
+      bitField0_ |= 0x00000008;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * A list of advanced OCR options to further fine-tune OCR behavior. Current
+     * valid values are:
+     *
+     * - `legacy_layout`: a heuristics layout detection algorithm, which serves as
+     * an alternative to the current ML-based layout detection algorithm.
+     * Customers can choose the best suitable layout algorithm based on their
+     * situation.
+     * 

+     *
+     * repeated string advanced_ocr_options = 5;
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearAdvancedOcrOptions() {
+      advancedOcrOptions_ = com.google.protobuf.LazyStringArrayList.emptyList();
+      bitField0_ = (bitField0_ & ~0x00000008);
+      ;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * A list of advanced OCR options to further fine-tune OCR behavior. Current
+     * valid values are:
+     *
+     * - `legacy_layout`: a heuristics layout detection algorithm, which serves as
+     * an alternative to the current ML-based layout detection algorithm.
+     * Customers can choose the best suitable layout algorithm based on their
+     * situation.
+     * 

+     *
+     * repeated string advanced_ocr_options = 5;
+     *
+     * @param value The bytes of the advancedOcrOptions to add.
+     * @return This builder for chaining.
+     */
+    public Builder addAdvancedOcrOptionsBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+      ensureAdvancedOcrOptionsIsMutable();
+      advancedOcrOptions_.add(value);
+      bitField0_ |= 0x00000008;
+      onChanged();
+      return this;
+    }
+
+    private boolean enableSymbol_;
+    /**
+     *
+     *
+     * 
+     * Includes symbol level OCR information if set to true.
+     * 

+     *
+     * bool enable_symbol = 6;
+     *
+     * @return The enableSymbol.
+     */
+    @java.lang.Override
+    public boolean getEnableSymbol() {
+      return enableSymbol_;
+    }
+    /**
+     *
+     *
+     * 
+     * Includes symbol level OCR information if set to true.
+     * 

+     *
+     * bool enable_symbol = 6;
+     *
+     * @param value The enableSymbol to set.
+     * @return This builder for chaining.
+     */
+    public Builder setEnableSymbol(boolean value) {
+
+      enableSymbol_ = value;
+      bitField0_ |= 0x00000010;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Includes symbol level OCR information if set to true.
+     * 

+     *
+     * bool enable_symbol = 6;
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearEnableSymbol() {
+      bitField0_ = (bitField0_ & ~0x00000010);
+      enableSymbol_ = false;
+      onChanged();
+      return this;
+    }
+
+    private boolean computeStyleInfo_;
+    /**
+     *
+     *
+     * 
+     * Turn on font id model and returns font style information.
+     * 

+     *
+     * bool compute_style_info = 8;
+     *
+     * @return The computeStyleInfo.
+     */
+    @java.lang.Override
+    public boolean getComputeStyleInfo() {
+      return computeStyleInfo_;
+    }
+    /**
+     *
+     *
+     * 
+     * Turn on font id model and returns font style information.
+     * 

+     *
+     * bool compute_style_info = 8;
+     *
+     * @param value The computeStyleInfo to set.
+     * @return This builder for chaining.
+     */
+    public Builder setComputeStyleInfo(boolean value) {
+
+      computeStyleInfo_ = value;
+      bitField0_ |= 0x00000020;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Turn on font id model and returns font style information.
+     * 

+     *
+     * bool compute_style_info = 8;
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearComputeStyleInfo() {
+      bitField0_ = (bitField0_ & ~0x00000020);
+      computeStyleInfo_ = false;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.documentai.v1.OcrConfig)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.documentai.v1.OcrConfig)
+  private static final com.google.cloud.documentai.v1.OcrConfig DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.documentai.v1.OcrConfig();
+  }
+
+  public static com.google.cloud.documentai.v1.OcrConfig getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser PARSER =
+      new com.google.protobuf.AbstractParser() {
+        @java.lang.Override
+        public OcrConfig parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
+        }
+      };
+
+  public static com.google.protobuf.Parser parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.documentai.v1.OcrConfig getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1/src/main/java/com/google/cloud/documentai/v1/OcrConfigOrBuilder.java b/java-document-ai/proto-google-cloud-document-ai-v1/src/main/java/com/google/cloud/documentai/v1/OcrConfigOrBuilder.java
new file mode 100644
index 000000000000..f22a59c14862
--- /dev/null
+++ b/java-document-ai/proto-google-cloud-document-ai-v1/src/main/java/com/google/cloud/documentai/v1/OcrConfigOrBuilder.java
@@ -0,0 +1,190 @@
+/*
+ * Copyright 2023 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/documentai/v1/document_io.proto
+
+package com.google.cloud.documentai.v1;
+
+public interface OcrConfigOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.documentai.v1.OcrConfig)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * 
+   * Hints for the OCR model.
+   * 

+   *
+   * .google.cloud.documentai.v1.OcrConfig.Hints hints = 2;
+   *
+   * @return Whether the hints field is set.
+   */
+  boolean hasHints();
+  /**
+   *
+   *
+   * 
+   * Hints for the OCR model.
+   * 

+   *
+   * .google.cloud.documentai.v1.OcrConfig.Hints hints = 2;
+   *
+   * @return The hints.
+   */
+  com.google.cloud.documentai.v1.OcrConfig.Hints getHints();
+  /**
+   *
+   *
+   * 
+   * Hints for the OCR model.
+   * 

+   *
+   * .google.cloud.documentai.v1.OcrConfig.Hints hints = 2;
+   */
+  com.google.cloud.documentai.v1.OcrConfig.HintsOrBuilder getHintsOrBuilder();
+
+  /**
+   *
+   *
+   * 
+   * Enables special handling for PDFs with existing text information. Results
+   * in better text extraction quality in such PDF inputs.
+   * 

+   *
+   * bool enable_native_pdf_parsing = 3;
+   *
+   * @return The enableNativePdfParsing.
+   */
+  boolean getEnableNativePdfParsing();
+
+  /**
+   *
+   *
+   * 
+   * Enables intelligent document quality scores after OCR. Can help with
+   * diagnosing why OCR responses are of poor quality for a given input.
+   * Adds additional latency comparable to regular OCR to the process call.
+   * 

+   *
+   * bool enable_image_quality_scores = 4;
+   *
+   * @return The enableImageQualityScores.
+   */
+  boolean getEnableImageQualityScores();
+
+  /**
+   *
+   *
+   * 
+   * A list of advanced OCR options to further fine-tune OCR behavior. Current
+   * valid values are:
+   *
+   * - `legacy_layout`: a heuristics layout detection algorithm, which serves as
+   * an alternative to the current ML-based layout detection algorithm.
+   * Customers can choose the best suitable layout algorithm based on their
+   * situation.
+   * 

+   *
+   * repeated string advanced_ocr_options = 5;
+   *
+   * @return A list containing the advancedOcrOptions.
+   */
+  java.util.List getAdvancedOcrOptionsList();
+  /**
+   *
+   *
+   * 
+   * A list of advanced OCR options to further fine-tune OCR behavior. Current
+   * valid values are:
+   *
+   * - `legacy_layout`: a heuristics layout detection algorithm, which serves as
+   * an alternative to the current ML-based layout detection algorithm.
+   * Customers can choose the best suitable layout algorithm based on their
+   * situation.
+   * 

+   *
+   * repeated string advanced_ocr_options = 5;
+   *
+   * @return The count of advancedOcrOptions.
+   */
+  int getAdvancedOcrOptionsCount();
+  /**
+   *
+   *
+   * 
+   * A list of advanced OCR options to further fine-tune OCR behavior. Current
+   * valid values are:
+   *
+   * - `legacy_layout`: a heuristics layout detection algorithm, which serves as
+   * an alternative to the current ML-based layout detection algorithm.
+   * Customers can choose the best suitable layout algorithm based on their
+   * situation.
+   * 

+   *
+   * repeated string advanced_ocr_options = 5;
+   *
+   * @param index The index of the element to return.
+   * @return The advancedOcrOptions at the given index.
+   */
+  java.lang.String getAdvancedOcrOptions(int index);
+  /**
+   *
+   *
+   * 
+   * A list of advanced OCR options to further fine-tune OCR behavior. Current
+   * valid values are:
+   *
+   * - `legacy_layout`: a heuristics layout detection algorithm, which serves as
+   * an alternative to the current ML-based layout detection algorithm.
+   * Customers can choose the best suitable layout algorithm based on their
+   * situation.
+   * 

+   *
+   * repeated string advanced_ocr_options = 5;
+   *
+   * @param index The index of the value to return.
+   * @return The bytes of the advancedOcrOptions at the given index.
+   */
+  com.google.protobuf.ByteString getAdvancedOcrOptionsBytes(int index);
+
+  /**
+   *
+   *
+   * 
+   * Includes symbol level OCR information if set to true.
+   * 

+   *
+   * bool enable_symbol = 6;
+   *
+   * @return The enableSymbol.
+   */
+  boolean getEnableSymbol();
+
+  /**
+   *
+   *
+   * 
+   * Turn on font id model and returns font style information.
+   * 

+   *
+   * bool compute_style_info = 8;
+   *
+   * @return The computeStyleInfo.
+   */
+  boolean getComputeStyleInfo();
+}
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1/src/main/java/com/google/cloud/documentai/v1/ProcessOptions.java b/java-document-ai/proto-google-cloud-document-ai-v1/src/main/java/com/google/cloud/documentai/v1/ProcessOptions.java
new file mode 100644
index 000000000000..dc23fcf37b38
--- /dev/null
+++ b/java-document-ai/proto-google-cloud-document-ai-v1/src/main/java/com/google/cloud/documentai/v1/ProcessOptions.java
@@ -0,0 +1,716 @@
+/*
+ * Copyright 2023 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/documentai/v1/document_processor_service.proto
+
+package com.google.cloud.documentai.v1;
+
+/**
+ *
+ *
+ * 
+ * Options for Process API
+ * 

+ *
+ * Protobuf type {@code google.cloud.documentai.v1.ProcessOptions}
+ */
+public final class ProcessOptions extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.documentai.v1.ProcessOptions)
+    ProcessOptionsOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use ProcessOptions.newBuilder() to construct.
+  private ProcessOptions(com.google.protobuf.GeneratedMessageV3.Builder builder) {
+    super(builder);
+  }
+
+  private ProcessOptions() {}
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new ProcessOptions();
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.documentai.v1.DocumentAiProcessorService
+        .internal_static_google_cloud_documentai_v1_ProcessOptions_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.documentai.v1.DocumentAiProcessorService
+        .internal_static_google_cloud_documentai_v1_ProcessOptions_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.documentai.v1.ProcessOptions.class,
+            com.google.cloud.documentai.v1.ProcessOptions.Builder.class);
+  }
+
+  public static final int OCR_CONFIG_FIELD_NUMBER = 1;
+  private com.google.cloud.documentai.v1.OcrConfig ocrConfig_;
+  /**
+   *
+   *
+   * 
+   * Only applicable to `OCR_PROCESSOR`. Returns error if set on other
+   * processor types.
+   * 

+   *
+   * .google.cloud.documentai.v1.OcrConfig ocr_config = 1;
+   *
+   * @return Whether the ocrConfig field is set.
+   */
+  @java.lang.Override
+  public boolean hasOcrConfig() {
+    return ocrConfig_ != null;
+  }
+  /**
+   *
+   *
+   * 
+   * Only applicable to `OCR_PROCESSOR`. Returns error if set on other
+   * processor types.
+   * 

+   *
+   * .google.cloud.documentai.v1.OcrConfig ocr_config = 1;
+   *
+   * @return The ocrConfig.
+   */
+  @java.lang.Override
+  public com.google.cloud.documentai.v1.OcrConfig getOcrConfig() {
+    return ocrConfig_ == null
+        ? com.google.cloud.documentai.v1.OcrConfig.getDefaultInstance()
+        : ocrConfig_;
+  }
+  /**
+   *
+   *
+   * 
+   * Only applicable to `OCR_PROCESSOR`. Returns error if set on other
+   * processor types.
+   * 

+   *
+   * .google.cloud.documentai.v1.OcrConfig ocr_config = 1;
+   */
+  @java.lang.Override
+  public com.google.cloud.documentai.v1.OcrConfigOrBuilder getOcrConfigOrBuilder() {
+    return ocrConfig_ == null
+        ? com.google.cloud.documentai.v1.OcrConfig.getDefaultInstance()
+        : ocrConfig_;
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (ocrConfig_ != null) {
+      output.writeMessage(1, getOcrConfig());
+    }
+    getUnknownFields().writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (ocrConfig_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, getOcrConfig());
+    }
+    size += getUnknownFields().getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.documentai.v1.ProcessOptions)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.documentai.v1.ProcessOptions other =
+        (com.google.cloud.documentai.v1.ProcessOptions) obj;
+
+    if (hasOcrConfig() != other.hasOcrConfig()) return false;
+    if (hasOcrConfig()) {
+      if (!getOcrConfig().equals(other.getOcrConfig())) return false;
+    }
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    if (hasOcrConfig()) {
+      hash = (37 * hash) + OCR_CONFIG_FIELD_NUMBER;
+      hash = (53 * hash) + getOcrConfig().hashCode();
+    }
+    hash = (29 * hash) + getUnknownFields().hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.documentai.v1.ProcessOptions parseFrom(java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.documentai.v1.ProcessOptions parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.documentai.v1.ProcessOptions parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.documentai.v1.ProcessOptions parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.documentai.v1.ProcessOptions parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.documentai.v1.ProcessOptions parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.documentai.v1.ProcessOptions parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.documentai.v1.ProcessOptions parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.documentai.v1.ProcessOptions parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.documentai.v1.ProcessOptions parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.documentai.v1.ProcessOptions parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.documentai.v1.ProcessOptions parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(com.google.cloud.documentai.v1.ProcessOptions prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * 
+   * Options for Process API
+   * 

+   *
+   * Protobuf type {@code google.cloud.documentai.v1.ProcessOptions}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.documentai.v1.ProcessOptions)
+      com.google.cloud.documentai.v1.ProcessOptionsOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.documentai.v1.DocumentAiProcessorService
+          .internal_static_google_cloud_documentai_v1_ProcessOptions_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.documentai.v1.DocumentAiProcessorService
+          .internal_static_google_cloud_documentai_v1_ProcessOptions_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.documentai.v1.ProcessOptions.class,
+              com.google.cloud.documentai.v1.ProcessOptions.Builder.class);
+    }
+
+    // Construct using com.google.cloud.documentai.v1.ProcessOptions.newBuilder()
+    private Builder() {}
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      bitField0_ = 0;
+      ocrConfig_ = null;
+      if (ocrConfigBuilder_ != null) {
+        ocrConfigBuilder_.dispose();
+        ocrConfigBuilder_ = null;
+      }
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.documentai.v1.DocumentAiProcessorService
+          .internal_static_google_cloud_documentai_v1_ProcessOptions_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.documentai.v1.ProcessOptions getDefaultInstanceForType() {
+      return com.google.cloud.documentai.v1.ProcessOptions.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.documentai.v1.ProcessOptions build() {
+      com.google.cloud.documentai.v1.ProcessOptions result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.documentai.v1.ProcessOptions buildPartial() {
+      com.google.cloud.documentai.v1.ProcessOptions result =
+          new com.google.cloud.documentai.v1.ProcessOptions(this);
+      if (bitField0_ != 0) {
+        buildPartial0(result);
+      }
+      onBuilt();
+      return result;
+    }
+
+    private void buildPartial0(com.google.cloud.documentai.v1.ProcessOptions result) {
+      int from_bitField0_ = bitField0_;
+      if (((from_bitField0_ & 0x00000001) != 0)) {
+        result.ocrConfig_ = ocrConfigBuilder_ == null ? ocrConfig_ : ocrConfigBuilder_.build();
+      }
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.documentai.v1.ProcessOptions) {
+        return mergeFrom((com.google.cloud.documentai.v1.ProcessOptions) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.documentai.v1.ProcessOptions other) {
+      if (other == com.google.cloud.documentai.v1.ProcessOptions.getDefaultInstance()) return this;
+      if (other.hasOcrConfig()) {
+        mergeOcrConfig(other.getOcrConfig());
+      }
+      this.mergeUnknownFields(other.getUnknownFields());
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
+      try {
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                input.readMessage(getOcrConfigFieldBuilder().getBuilder(), extensionRegistry);
+                bitField0_ |= 0x00000001;
+                break;
+              } // case 10
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        throw e.unwrapIOException();
+      } finally {
+        onChanged();
+      } // finally
+      return this;
+    }
+
+    private int bitField0_;
+
+    private com.google.cloud.documentai.v1.OcrConfig ocrConfig_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.documentai.v1.OcrConfig,
+            com.google.cloud.documentai.v1.OcrConfig.Builder,
+            com.google.cloud.documentai.v1.OcrConfigOrBuilder>
+        ocrConfigBuilder_;
+    /**
+     *
+     *
+     * 
+     * Only applicable to `OCR_PROCESSOR`. Returns error if set on other
+     * processor types.
+     * 

+     *
+     * .google.cloud.documentai.v1.OcrConfig ocr_config = 1;
+     *
+     * @return Whether the ocrConfig field is set.
+     */
+    public boolean hasOcrConfig() {
+      return ((bitField0_ & 0x00000001) != 0);
+    }
+    /**
+     *
+     *
+     * 
+     * Only applicable to `OCR_PROCESSOR`. Returns error if set on other
+     * processor types.
+     * 

+     *
+     * .google.cloud.documentai.v1.OcrConfig ocr_config = 1;
+     *
+     * @return The ocrConfig.
+     */
+    public com.google.cloud.documentai.v1.OcrConfig getOcrConfig() {
+      if (ocrConfigBuilder_ == null) {
+        return ocrConfig_ == null
+            ? com.google.cloud.documentai.v1.OcrConfig.getDefaultInstance()
+            : ocrConfig_;
+      } else {
+        return ocrConfigBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Only applicable to `OCR_PROCESSOR`. Returns error if set on other
+     * processor types.
+     * 

+     *
+     * .google.cloud.documentai.v1.OcrConfig ocr_config = 1;
+     */
+    public Builder setOcrConfig(com.google.cloud.documentai.v1.OcrConfig value) {
+      if (ocrConfigBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ocrConfig_ = value;
+      } else {
+        ocrConfigBuilder_.setMessage(value);
+      }
+      bitField0_ |= 0x00000001;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Only applicable to `OCR_PROCESSOR`. Returns error if set on other
+     * processor types.
+     * 

+     *
+     * .google.cloud.documentai.v1.OcrConfig ocr_config = 1;
+     */
+    public Builder setOcrConfig(com.google.cloud.documentai.v1.OcrConfig.Builder builderForValue) {
+      if (ocrConfigBuilder_ == null) {
+        ocrConfig_ = builderForValue.build();
+      } else {
+        ocrConfigBuilder_.setMessage(builderForValue.build());
+      }
+      bitField0_ |= 0x00000001;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Only applicable to `OCR_PROCESSOR`. Returns error if set on other
+     * processor types.
+     * 

+     *
+     * .google.cloud.documentai.v1.OcrConfig ocr_config = 1;
+     */
+    public Builder mergeOcrConfig(com.google.cloud.documentai.v1.OcrConfig value) {
+      if (ocrConfigBuilder_ == null) {
+        if (((bitField0_ & 0x00000001) != 0)
+            && ocrConfig_ != null
+            && ocrConfig_ != com.google.cloud.documentai.v1.OcrConfig.getDefaultInstance()) {
+          getOcrConfigBuilder().mergeFrom(value);
+        } else {
+          ocrConfig_ = value;
+        }
+      } else {
+        ocrConfigBuilder_.mergeFrom(value);
+      }
+      bitField0_ |= 0x00000001;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Only applicable to `OCR_PROCESSOR`. Returns error if set on other
+     * processor types.
+     * 

+     *
+     * .google.cloud.documentai.v1.OcrConfig ocr_config = 1;
+     */
+    public Builder clearOcrConfig() {
+      bitField0_ = (bitField0_ & ~0x00000001);
+      ocrConfig_ = null;
+      if (ocrConfigBuilder_ != null) {
+        ocrConfigBuilder_.dispose();
+        ocrConfigBuilder_ = null;
+      }
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Only applicable to `OCR_PROCESSOR`. Returns error if set on other
+     * processor types.
+     * 

+     *
+     * .google.cloud.documentai.v1.OcrConfig ocr_config = 1;
+     */
+    public com.google.cloud.documentai.v1.OcrConfig.Builder getOcrConfigBuilder() {
+      bitField0_ |= 0x00000001;
+      onChanged();
+      return getOcrConfigFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * 
+     * Only applicable to `OCR_PROCESSOR`. Returns error if set on other
+     * processor types.
+     * 

+     *
+     * .google.cloud.documentai.v1.OcrConfig ocr_config = 1;
+     */
+    public com.google.cloud.documentai.v1.OcrConfigOrBuilder getOcrConfigOrBuilder() {
+      if (ocrConfigBuilder_ != null) {
+        return ocrConfigBuilder_.getMessageOrBuilder();
+      } else {
+        return ocrConfig_ == null
+            ? com.google.cloud.documentai.v1.OcrConfig.getDefaultInstance()
+            : ocrConfig_;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Only applicable to `OCR_PROCESSOR`. Returns error if set on other
+     * processor types.
+     * 

+     *
+     * .google.cloud.documentai.v1.OcrConfig ocr_config = 1;
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.documentai.v1.OcrConfig,
+            com.google.cloud.documentai.v1.OcrConfig.Builder,
+            com.google.cloud.documentai.v1.OcrConfigOrBuilder>
+        getOcrConfigFieldBuilder() {
+      if (ocrConfigBuilder_ == null) {
+        ocrConfigBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.documentai.v1.OcrConfig,
+                com.google.cloud.documentai.v1.OcrConfig.Builder,
+                com.google.cloud.documentai.v1.OcrConfigOrBuilder>(
+                getOcrConfig(), getParentForChildren(), isClean());
+        ocrConfig_ = null;
+      }
+      return ocrConfigBuilder_;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.documentai.v1.ProcessOptions)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.documentai.v1.ProcessOptions)
+  private static final com.google.cloud.documentai.v1.ProcessOptions DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.documentai.v1.ProcessOptions();
+  }
+
+  public static com.google.cloud.documentai.v1.ProcessOptions getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser PARSER =
+      new com.google.protobuf.AbstractParser() {
+        @java.lang.Override
+        public ProcessOptions parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
+        }
+      };
+
+  public static com.google.protobuf.Parser parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.documentai.v1.ProcessOptions getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1/src/main/java/com/google/cloud/documentai/v1/ProcessOptionsOrBuilder.java b/java-document-ai/proto-google-cloud-document-ai-v1/src/main/java/com/google/cloud/documentai/v1/ProcessOptionsOrBuilder.java
new file mode 100644
index 000000000000..c450ed5cd9c2
--- /dev/null
+++ b/java-document-ai/proto-google-cloud-document-ai-v1/src/main/java/com/google/cloud/documentai/v1/ProcessOptionsOrBuilder.java
@@ -0,0 +1,63 @@
+/*
+ * Copyright 2023 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/documentai/v1/document_processor_service.proto
+
+package com.google.cloud.documentai.v1;
+
+public interface ProcessOptionsOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.documentai.v1.ProcessOptions)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * 
+   * Only applicable to `OCR_PROCESSOR`. Returns error if set on other
+   * processor types.
+   * 

+   *
+   * .google.cloud.documentai.v1.OcrConfig ocr_config = 1;
+   *
+   * @return Whether the ocrConfig field is set.
+   */
+  boolean hasOcrConfig();
+  /**
+   *
+   *
+   * 
+   * Only applicable to `OCR_PROCESSOR`. Returns error if set on other
+   * processor types.
+   * 

+   *
+   * .google.cloud.documentai.v1.OcrConfig ocr_config = 1;
+   *
+   * @return The ocrConfig.
+   */
+  com.google.cloud.documentai.v1.OcrConfig getOcrConfig();
+  /**
+   *
+   *
+   * 
+   * Only applicable to `OCR_PROCESSOR`. Returns error if set on other
+   * processor types.
+   * 

+   *
+   * .google.cloud.documentai.v1.OcrConfig ocr_config = 1;
+   */
+  com.google.cloud.documentai.v1.OcrConfigOrBuilder getOcrConfigOrBuilder();
+}
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1/src/main/java/com/google/cloud/documentai/v1/ProcessRequest.java b/java-document-ai/proto-google-cloud-document-ai-v1/src/main/java/com/google/cloud/documentai/v1/ProcessRequest.java
index 43afb063244b..a09ce67ae518 100644
--- a/java-document-ai/proto-google-cloud-document-ai-v1/src/main/java/com/google/cloud/documentai/v1/ProcessRequest.java
+++ b/java-document-ai/proto-google-cloud-document-ai-v1/src/main/java/com/google/cloud/documentai/v1/ProcessRequest.java
@@ -75,6 +75,7 @@ public enum SourceCase
           com.google.protobuf.AbstractMessage.InternalOneOfEnum {
     INLINE_DOCUMENT(4),
     RAW_DOCUMENT(5),
+    GCS_DOCUMENT(8),
     SOURCE_NOT_SET(0);
     private final int value;
 
@@ -97,6 +98,8 @@ public static SourceCase forNumber(int value) {
           return INLINE_DOCUMENT;
         case 5:
           return RAW_DOCUMENT;
+        case 8:
+          return GCS_DOCUMENT;
         case 0:
           return SOURCE_NOT_SET;
         default:
@@ -215,6 +218,57 @@ public com.google.cloud.documentai.v1.RawDocumentOrBuilder getRawDocumentOrBuild
     return com.google.cloud.documentai.v1.RawDocument.getDefaultInstance();
   }
 
+  public static final int GCS_DOCUMENT_FIELD_NUMBER = 8;
+  /**
+   *
+   *
+   * 
+   * A raw document on Google Cloud Storage.
+   * 

+   *
+   * .google.cloud.documentai.v1.GcsDocument gcs_document = 8;
+   *
+   * @return Whether the gcsDocument field is set.
+   */
+  @java.lang.Override
+  public boolean hasGcsDocument() {
+    return sourceCase_ == 8;
+  }
+  /**
+   *
+   *
+   * 
+   * A raw document on Google Cloud Storage.
+   * 

+   *
+   * .google.cloud.documentai.v1.GcsDocument gcs_document = 8;
+   *
+   * @return The gcsDocument.
+   */
+  @java.lang.Override
+  public com.google.cloud.documentai.v1.GcsDocument getGcsDocument() {
+    if (sourceCase_ == 8) {
+      return (com.google.cloud.documentai.v1.GcsDocument) source_;
+    }
+    return com.google.cloud.documentai.v1.GcsDocument.getDefaultInstance();
+  }
+  /**
+   *
+   *
+   * 
+   * A raw document on Google Cloud Storage.
+   * 

+   *
+   * .google.cloud.documentai.v1.GcsDocument gcs_document = 8;
+   */
+  @java.lang.Override
+  public com.google.cloud.documentai.v1.GcsDocumentOrBuilder getGcsDocumentOrBuilder() {
+    if (sourceCase_ == 8) {
+      return (com.google.cloud.documentai.v1.GcsDocument) source_;
+    }
+    return com.google.cloud.documentai.v1.GcsDocument.getDefaultInstance();
+  }
+
   public static final int NAME_FIELD_NUMBER = 1;
 
   @SuppressWarnings("serial")
@@ -362,6 +416,56 @@ public com.google.protobuf.FieldMaskOrBuilder getFieldMaskOrBuilder() {
     return fieldMask_ == null ? com.google.protobuf.FieldMask.getDefaultInstance() : fieldMask_;
   }
 
+  public static final int PROCESS_OPTIONS_FIELD_NUMBER = 7;
+  private com.google.cloud.documentai.v1.ProcessOptions processOptions_;
+  /**
+   *
+   *
+   * 
+   * Inference-time options for the process API
+   * 

+   *
+   * .google.cloud.documentai.v1.ProcessOptions process_options = 7;
+   *
+   * @return Whether the processOptions field is set.
+   */
+  @java.lang.Override
+  public boolean hasProcessOptions() {
+    return processOptions_ != null;
+  }
+  /**
+   *
+   *
+   * 
+   * Inference-time options for the process API
+   * 

+   *
+   * .google.cloud.documentai.v1.ProcessOptions process_options = 7;
+   *
+   * @return The processOptions.
+   */
+  @java.lang.Override
+  public com.google.cloud.documentai.v1.ProcessOptions getProcessOptions() {
+    return processOptions_ == null
+        ? com.google.cloud.documentai.v1.ProcessOptions.getDefaultInstance()
+        : processOptions_;
+  }
+  /**
+   *
+   *
+   * 
+   * Inference-time options for the process API
+   * 

+   *
+   * .google.cloud.documentai.v1.ProcessOptions process_options = 7;
+   */
+  @java.lang.Override
+  public com.google.cloud.documentai.v1.ProcessOptionsOrBuilder getProcessOptionsOrBuilder() {
+    return processOptions_ == null
+        ? com.google.cloud.documentai.v1.ProcessOptions.getDefaultInstance()
+        : processOptions_;
+  }
+
   private byte memoizedIsInitialized = -1;
 
   @java.lang.Override
@@ -391,6 +495,12 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (fieldMask_ != null) {
       output.writeMessage(6, getFieldMask());
     }
+    if (processOptions_ != null) {
+      output.writeMessage(7, getProcessOptions());
+    }
+    if (sourceCase_ == 8) {
+      output.writeMessage(8, (com.google.cloud.documentai.v1.GcsDocument) source_);
+    }
     getUnknownFields().writeTo(output);
   }
 
@@ -419,6 +529,14 @@ public int getSerializedSize() {
     if (fieldMask_ != null) {
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(6, getFieldMask());
     }
+    if (processOptions_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(7, getProcessOptions());
+    }
+    if (sourceCase_ == 8) {
+      size +=
+          com.google.protobuf.CodedOutputStream.computeMessageSize(
+              8, (com.google.cloud.documentai.v1.GcsDocument) source_);
+    }
     size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
@@ -441,6 +559,10 @@ public boolean equals(final java.lang.Object obj) {
     if (hasFieldMask()) {
       if (!getFieldMask().equals(other.getFieldMask())) return false;
     }
+    if (hasProcessOptions() != other.hasProcessOptions()) return false;
+    if (hasProcessOptions()) {
+      if (!getProcessOptions().equals(other.getProcessOptions())) return false;
+    }
     if (!getSourceCase().equals(other.getSourceCase())) return false;
     switch (sourceCase_) {
       case 4:
@@ -449,6 +571,9 @@ public boolean equals(final java.lang.Object obj) {
       case 5:
         if (!getRawDocument().equals(other.getRawDocument())) return false;
         break;
+      case 8:
+        if (!getGcsDocument().equals(other.getGcsDocument())) return false;
+        break;
       case 0:
       default:
     }
@@ -471,6 +596,10 @@ public int hashCode() {
       hash = (37 * hash) + FIELD_MASK_FIELD_NUMBER;
       hash = (53 * hash) + getFieldMask().hashCode();
     }
+    if (hasProcessOptions()) {
+      hash = (37 * hash) + PROCESS_OPTIONS_FIELD_NUMBER;
+      hash = (53 * hash) + getProcessOptions().hashCode();
+    }
     switch (sourceCase_) {
       case 4:
         hash = (37 * hash) + INLINE_DOCUMENT_FIELD_NUMBER;
@@ -480,6 +609,10 @@ public int hashCode() {
         hash = (37 * hash) + RAW_DOCUMENT_FIELD_NUMBER;
         hash = (53 * hash) + getRawDocument().hashCode();
         break;
+      case 8:
+        hash = (37 * hash) + GCS_DOCUMENT_FIELD_NUMBER;
+        hash = (53 * hash) + getGcsDocument().hashCode();
+        break;
       case 0:
       default:
     }
@@ -630,6 +763,9 @@ public Builder clear() {
       if (rawDocumentBuilder_ != null) {
         rawDocumentBuilder_.clear();
       }
+      if (gcsDocumentBuilder_ != null) {
+        gcsDocumentBuilder_.clear();
+      }
       name_ = "";
       skipHumanReview_ = false;
       fieldMask_ = null;
@@ -637,6 +773,11 @@ public Builder clear() {
         fieldMaskBuilder_.dispose();
         fieldMaskBuilder_ = null;
       }
+      processOptions_ = null;
+      if (processOptionsBuilder_ != null) {
+        processOptionsBuilder_.dispose();
+        processOptionsBuilder_ = null;
+      }
       sourceCase_ = 0;
       source_ = null;
       return this;
@@ -676,15 +817,19 @@ public com.google.cloud.documentai.v1.ProcessRequest buildPartial() {
 
     private void buildPartial0(com.google.cloud.documentai.v1.ProcessRequest result) {
       int from_bitField0_ = bitField0_;
-      if (((from_bitField0_ & 0x00000004) != 0)) {
+      if (((from_bitField0_ & 0x00000008) != 0)) {
         result.name_ = name_;
       }
-      if (((from_bitField0_ & 0x00000008) != 0)) {
+      if (((from_bitField0_ & 0x00000010) != 0)) {
         result.skipHumanReview_ = skipHumanReview_;
       }
-      if (((from_bitField0_ & 0x00000010) != 0)) {
+      if (((from_bitField0_ & 0x00000020) != 0)) {
         result.fieldMask_ = fieldMaskBuilder_ == null ? fieldMask_ : fieldMaskBuilder_.build();
       }
+      if (((from_bitField0_ & 0x00000040) != 0)) {
+        result.processOptions_ =
+            processOptionsBuilder_ == null ? processOptions_ : processOptionsBuilder_.build();
+      }
     }
 
     private void buildPartialOneofs(com.google.cloud.documentai.v1.ProcessRequest result) {
@@ -696,6 +841,9 @@ private void buildPartialOneofs(com.google.cloud.documentai.v1.ProcessRequest re
       if (sourceCase_ == 5 && rawDocumentBuilder_ != null) {
         result.source_ = rawDocumentBuilder_.build();
       }
+      if (sourceCase_ == 8 && gcsDocumentBuilder_ != null) {
+        result.source_ = gcsDocumentBuilder_.build();
+      }
     }
 
     @java.lang.Override
@@ -745,7 +893,7 @@ public Builder mergeFrom(com.google.cloud.documentai.v1.ProcessRequest other) {
       if (other == com.google.cloud.documentai.v1.ProcessRequest.getDefaultInstance()) return this;
       if (!other.getName().isEmpty()) {
         name_ = other.name_;
-        bitField0_ |= 0x00000004;
+        bitField0_ |= 0x00000008;
         onChanged();
       }
       if (other.getSkipHumanReview() != false) {
@@ -754,6 +902,9 @@ public Builder mergeFrom(com.google.cloud.documentai.v1.ProcessRequest other) {
       if (other.hasFieldMask()) {
         mergeFieldMask(other.getFieldMask());
       }
+      if (other.hasProcessOptions()) {
+        mergeProcessOptions(other.getProcessOptions());
+      }
       switch (other.getSourceCase()) {
         case INLINE_DOCUMENT:
           {
@@ -765,6 +916,11 @@ public Builder mergeFrom(com.google.cloud.documentai.v1.ProcessRequest other) {
             mergeRawDocument(other.getRawDocument());
             break;
           }
+        case GCS_DOCUMENT:
+          {
+            mergeGcsDocument(other.getGcsDocument());
+            break;
+          }
         case SOURCE_NOT_SET:
           {
             break;
@@ -799,13 +955,13 @@ public Builder mergeFrom(
             case 10:
               {
                 name_ = input.readStringRequireUtf8();
-                bitField0_ |= 0x00000004;
+                bitField0_ |= 0x00000008;
                 break;
               } // case 10
             case 24:
               {
                 skipHumanReview_ = input.readBool();
-                bitField0_ |= 0x00000008;
+                bitField0_ |= 0x00000010;
                 break;
               } // case 24
             case 34:
@@ -823,9 +979,21 @@ public Builder mergeFrom(
             case 50:
               {
                 input.readMessage(getFieldMaskFieldBuilder().getBuilder(), extensionRegistry);
-                bitField0_ |= 0x00000010;
+                bitField0_ |= 0x00000020;
                 break;
               } // case 50
+            case 58:
+              {
+                input.readMessage(getProcessOptionsFieldBuilder().getBuilder(), extensionRegistry);
+                bitField0_ |= 0x00000040;
+                break;
+              } // case 58
+            case 66:
+              {
+                input.readMessage(getGcsDocumentFieldBuilder().getBuilder(), extensionRegistry);
+                sourceCase_ = 8;
+                break;
+              } // case 66
             default:
               {
                 if (!super.parseUnknownField(input, extensionRegistry, tag)) {
@@ -1277,6 +1445,215 @@ public com.google.cloud.documentai.v1.RawDocumentOrBuilder getRawDocumentOrBuild
       return rawDocumentBuilder_;
     }
 
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.documentai.v1.GcsDocument,
+            com.google.cloud.documentai.v1.GcsDocument.Builder,
+            com.google.cloud.documentai.v1.GcsDocumentOrBuilder>
+        gcsDocumentBuilder_;
+    /**
+     *
+     *
+     * 
+     * A raw document on Google Cloud Storage.
+     * 

+     *
+     * .google.cloud.documentai.v1.GcsDocument gcs_document = 8;
+     *
+     * @return Whether the gcsDocument field is set.
+     */
+    @java.lang.Override
+    public boolean hasGcsDocument() {
+      return sourceCase_ == 8;
+    }
+    /**
+     *
+     *
+     * 
+     * A raw document on Google Cloud Storage.
+     * 

+     *
+     * .google.cloud.documentai.v1.GcsDocument gcs_document = 8;
+     *
+     * @return The gcsDocument.
+     */
+    @java.lang.Override
+    public com.google.cloud.documentai.v1.GcsDocument getGcsDocument() {
+      if (gcsDocumentBuilder_ == null) {
+        if (sourceCase_ == 8) {
+          return (com.google.cloud.documentai.v1.GcsDocument) source_;
+        }
+        return com.google.cloud.documentai.v1.GcsDocument.getDefaultInstance();
+      } else {
+        if (sourceCase_ == 8) {
+          return gcsDocumentBuilder_.getMessage();
+        }
+        return com.google.cloud.documentai.v1.GcsDocument.getDefaultInstance();
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * A raw document on Google Cloud Storage.
+     * 

+     *
+     * .google.cloud.documentai.v1.GcsDocument gcs_document = 8;
+     */
+    public Builder setGcsDocument(com.google.cloud.documentai.v1.GcsDocument value) {
+      if (gcsDocumentBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        source_ = value;
+        onChanged();
+      } else {
+        gcsDocumentBuilder_.setMessage(value);
+      }
+      sourceCase_ = 8;
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * A raw document on Google Cloud Storage.
+     * 

+     *
+     * .google.cloud.documentai.v1.GcsDocument gcs_document = 8;
+     */
+    public Builder setGcsDocument(
+        com.google.cloud.documentai.v1.GcsDocument.Builder builderForValue) {
+      if (gcsDocumentBuilder_ == null) {
+        source_ = builderForValue.build();
+        onChanged();
+      } else {
+        gcsDocumentBuilder_.setMessage(builderForValue.build());
+      }
+      sourceCase_ = 8;
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * A raw document on Google Cloud Storage.
+     * 

+     *
+     * .google.cloud.documentai.v1.GcsDocument gcs_document = 8;
+     */
+    public Builder mergeGcsDocument(com.google.cloud.documentai.v1.GcsDocument value) {
+      if (gcsDocumentBuilder_ == null) {
+        if (sourceCase_ == 8
+            && source_ != com.google.cloud.documentai.v1.GcsDocument.getDefaultInstance()) {
+          source_ =
+              com.google.cloud.documentai.v1.GcsDocument.newBuilder(
+                      (com.google.cloud.documentai.v1.GcsDocument) source_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          source_ = value;
+        }
+        onChanged();
+      } else {
+        if (sourceCase_ == 8) {
+          gcsDocumentBuilder_.mergeFrom(value);
+        } else {
+          gcsDocumentBuilder_.setMessage(value);
+        }
+      }
+      sourceCase_ = 8;
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * A raw document on Google Cloud Storage.
+     * 

+     *
+     * .google.cloud.documentai.v1.GcsDocument gcs_document = 8;
+     */
+    public Builder clearGcsDocument() {
+      if (gcsDocumentBuilder_ == null) {
+        if (sourceCase_ == 8) {
+          sourceCase_ = 0;
+          source_ = null;
+          onChanged();
+        }
+      } else {
+        if (sourceCase_ == 8) {
+          sourceCase_ = 0;
+          source_ = null;
+        }
+        gcsDocumentBuilder_.clear();
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * A raw document on Google Cloud Storage.
+     * 

+     *
+     * .google.cloud.documentai.v1.GcsDocument gcs_document = 8;
+     */
+    public com.google.cloud.documentai.v1.GcsDocument.Builder getGcsDocumentBuilder() {
+      return getGcsDocumentFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * 
+     * A raw document on Google Cloud Storage.
+     * 

+     *
+     * .google.cloud.documentai.v1.GcsDocument gcs_document = 8;
+     */
+    @java.lang.Override
+    public com.google.cloud.documentai.v1.GcsDocumentOrBuilder getGcsDocumentOrBuilder() {
+      if ((sourceCase_ == 8) && (gcsDocumentBuilder_ != null)) {
+        return gcsDocumentBuilder_.getMessageOrBuilder();
+      } else {
+        if (sourceCase_ == 8) {
+          return (com.google.cloud.documentai.v1.GcsDocument) source_;
+        }
+        return com.google.cloud.documentai.v1.GcsDocument.getDefaultInstance();
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * A raw document on Google Cloud Storage.
+     * 

+     *
+     * .google.cloud.documentai.v1.GcsDocument gcs_document = 8;
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.documentai.v1.GcsDocument,
+            com.google.cloud.documentai.v1.GcsDocument.Builder,
+            com.google.cloud.documentai.v1.GcsDocumentOrBuilder>
+        getGcsDocumentFieldBuilder() {
+      if (gcsDocumentBuilder_ == null) {
+        if (!(sourceCase_ == 8)) {
+          source_ = com.google.cloud.documentai.v1.GcsDocument.getDefaultInstance();
+        }
+        gcsDocumentBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.documentai.v1.GcsDocument,
+                com.google.cloud.documentai.v1.GcsDocument.Builder,
+                com.google.cloud.documentai.v1.GcsDocumentOrBuilder>(
+                (com.google.cloud.documentai.v1.GcsDocument) source_,
+                getParentForChildren(),
+                isClean());
+        source_ = null;
+      }
+      sourceCase_ = 8;
+      onChanged();
+      return gcsDocumentBuilder_;
+    }
+
     private java.lang.Object name_ = "";
     /**
      *
@@ -1372,7 +1749,7 @@ public Builder setName(java.lang.String value) {
         throw new NullPointerException();
       }
       name_ = value;
-      bitField0_ |= 0x00000004;
+      bitField0_ |= 0x00000008;
       onChanged();
       return this;
     }
@@ -1400,7 +1777,7 @@ public Builder setName(java.lang.String value) {
      */
     public Builder clearName() {
       name_ = getDefaultInstance().getName();
-      bitField0_ = (bitField0_ & ~0x00000004);
+      bitField0_ = (bitField0_ & ~0x00000008);
       onChanged();
       return this;
     }
@@ -1433,7 +1810,7 @@ public Builder setNameBytes(com.google.protobuf.ByteString value) {
       }
       checkByteStringIsUtf8(value);
       name_ = value;
-      bitField0_ |= 0x00000004;
+      bitField0_ |= 0x00000008;
       onChanged();
       return this;
     }
@@ -1471,7 +1848,7 @@ public boolean getSkipHumanReview() {
     public Builder setSkipHumanReview(boolean value) {
 
       skipHumanReview_ = value;
-      bitField0_ |= 0x00000008;
+      bitField0_ |= 0x00000010;
       onChanged();
       return this;
     }
@@ -1488,7 +1865,7 @@ public Builder setSkipHumanReview(boolean value) {
      * @return This builder for chaining.
      */
     public Builder clearSkipHumanReview() {
-      bitField0_ = (bitField0_ & ~0x00000008);
+      bitField0_ = (bitField0_ & ~0x00000010);
       skipHumanReview_ = false;
       onChanged();
       return this;
@@ -1515,7 +1892,7 @@ public Builder clearSkipHumanReview() {
      * @return Whether the fieldMask field is set.
      */
     public boolean hasFieldMask() {
-      return ((bitField0_ & 0x00000010) != 0);
+      return ((bitField0_ & 0x00000020) != 0);
     }
     /**
      *
@@ -1559,7 +1936,7 @@ public Builder setFieldMask(com.google.protobuf.FieldMask value) {
       } else {
         fieldMaskBuilder_.setMessage(value);
       }
-      bitField0_ |= 0x00000010;
+      bitField0_ |= 0x00000020;
       onChanged();
       return this;
     }
@@ -1581,7 +1958,7 @@ public Builder setFieldMask(com.google.protobuf.FieldMask.Builder builderForValu
       } else {
         fieldMaskBuilder_.setMessage(builderForValue.build());
       }
-      bitField0_ |= 0x00000010;
+      bitField0_ |= 0x00000020;
       onChanged();
       return this;
     }
@@ -1599,7 +1976,7 @@ public Builder setFieldMask(com.google.protobuf.FieldMask.Builder builderForValu
      */
     public Builder mergeFieldMask(com.google.protobuf.FieldMask value) {
       if (fieldMaskBuilder_ == null) {
-        if (((bitField0_ & 0x00000010) != 0)
+        if (((bitField0_ & 0x00000020) != 0)
             && fieldMask_ != null
             && fieldMask_ != com.google.protobuf.FieldMask.getDefaultInstance()) {
           getFieldMaskBuilder().mergeFrom(value);
@@ -1609,7 +1986,7 @@ public Builder mergeFieldMask(com.google.protobuf.FieldMask value) {
       } else {
         fieldMaskBuilder_.mergeFrom(value);
       }
-      bitField0_ |= 0x00000010;
+      bitField0_ |= 0x00000020;
       onChanged();
       return this;
     }
@@ -1626,7 +2003,7 @@ public Builder mergeFieldMask(com.google.protobuf.FieldMask value) {
      * .google.protobuf.FieldMask field_mask = 6;
      */
     public Builder clearFieldMask() {
-      bitField0_ = (bitField0_ & ~0x00000010);
+      bitField0_ = (bitField0_ & ~0x00000020);
       fieldMask_ = null;
       if (fieldMaskBuilder_ != null) {
         fieldMaskBuilder_.dispose();
@@ -1648,7 +2025,7 @@ public Builder clearFieldMask() {
      * .google.protobuf.FieldMask field_mask = 6;
      */
     public com.google.protobuf.FieldMask.Builder getFieldMaskBuilder() {
-      bitField0_ |= 0x00000010;
+      bitField0_ |= 0x00000020;
       onChanged();
       return getFieldMaskFieldBuilder().getBuilder();
     }
@@ -1700,6 +2077,191 @@ public com.google.protobuf.FieldMaskOrBuilder getFieldMaskOrBuilder() {
       return fieldMaskBuilder_;
     }
 
+    private com.google.cloud.documentai.v1.ProcessOptions processOptions_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.documentai.v1.ProcessOptions,
+            com.google.cloud.documentai.v1.ProcessOptions.Builder,
+            com.google.cloud.documentai.v1.ProcessOptionsOrBuilder>
+        processOptionsBuilder_;
+    /**
+     *
+     *
+     * 
+     * Inference-time options for the process API
+     * 

+     *
+     * .google.cloud.documentai.v1.ProcessOptions process_options = 7;
+     *
+     * @return Whether the processOptions field is set.
+     */
+    public boolean hasProcessOptions() {
+      return ((bitField0_ & 0x00000040) != 0);
+    }
+    /**
+     *
+     *
+     * 
+     * Inference-time options for the process API
+     * 

+     *
+     * .google.cloud.documentai.v1.ProcessOptions process_options = 7;
+     *
+     * @return The processOptions.
+     */
+    public com.google.cloud.documentai.v1.ProcessOptions getProcessOptions() {
+      if (processOptionsBuilder_ == null) {
+        return processOptions_ == null
+            ? com.google.cloud.documentai.v1.ProcessOptions.getDefaultInstance()
+            : processOptions_;
+      } else {
+        return processOptionsBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Inference-time options for the process API
+     * 

+     *
+     * .google.cloud.documentai.v1.ProcessOptions process_options = 7;
+     */
+    public Builder setProcessOptions(com.google.cloud.documentai.v1.ProcessOptions value) {
+      if (processOptionsBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        processOptions_ = value;
+      } else {
+        processOptionsBuilder_.setMessage(value);
+      }
+      bitField0_ |= 0x00000040;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Inference-time options for the process API
+     * 

+     *
+     * .google.cloud.documentai.v1.ProcessOptions process_options = 7;
+     */
+    public Builder setProcessOptions(
+        com.google.cloud.documentai.v1.ProcessOptions.Builder builderForValue) {
+      if (processOptionsBuilder_ == null) {
+        processOptions_ = builderForValue.build();
+      } else {
+        processOptionsBuilder_.setMessage(builderForValue.build());
+      }
+      bitField0_ |= 0x00000040;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Inference-time options for the process API
+     * 

+     *
+     * .google.cloud.documentai.v1.ProcessOptions process_options = 7;
+     */
+    public Builder mergeProcessOptions(com.google.cloud.documentai.v1.ProcessOptions value) {
+      if (processOptionsBuilder_ == null) {
+        if (((bitField0_ & 0x00000040) != 0)
+            && processOptions_ != null
+            && processOptions_
+                != com.google.cloud.documentai.v1.ProcessOptions.getDefaultInstance()) {
+          getProcessOptionsBuilder().mergeFrom(value);
+        } else {
+          processOptions_ = value;
+        }
+      } else {
+        processOptionsBuilder_.mergeFrom(value);
+      }
+      bitField0_ |= 0x00000040;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Inference-time options for the process API
+     * 

+     *
+     * .google.cloud.documentai.v1.ProcessOptions process_options = 7;
+     */
+    public Builder clearProcessOptions() {
+      bitField0_ = (bitField0_ & ~0x00000040);
+      processOptions_ = null;
+      if (processOptionsBuilder_ != null) {
+        processOptionsBuilder_.dispose();
+        processOptionsBuilder_ = null;
+      }
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Inference-time options for the process API
+     * 

+     *
+     * .google.cloud.documentai.v1.ProcessOptions process_options = 7;
+     */
+    public com.google.cloud.documentai.v1.ProcessOptions.Builder getProcessOptionsBuilder() {
+      bitField0_ |= 0x00000040;
+      onChanged();
+      return getProcessOptionsFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * 
+     * Inference-time options for the process API
+     * 

+     *
+     * .google.cloud.documentai.v1.ProcessOptions process_options = 7;
+     */
+    public com.google.cloud.documentai.v1.ProcessOptionsOrBuilder getProcessOptionsOrBuilder() {
+      if (processOptionsBuilder_ != null) {
+        return processOptionsBuilder_.getMessageOrBuilder();
+      } else {
+        return processOptions_ == null
+            ? com.google.cloud.documentai.v1.ProcessOptions.getDefaultInstance()
+            : processOptions_;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Inference-time options for the process API
+     * 

+     *
+     * .google.cloud.documentai.v1.ProcessOptions process_options = 7;
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.documentai.v1.ProcessOptions,
+            com.google.cloud.documentai.v1.ProcessOptions.Builder,
+            com.google.cloud.documentai.v1.ProcessOptionsOrBuilder>
+        getProcessOptionsFieldBuilder() {
+      if (processOptionsBuilder_ == null) {
+        processOptionsBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.documentai.v1.ProcessOptions,
+                com.google.cloud.documentai.v1.ProcessOptions.Builder,
+                com.google.cloud.documentai.v1.ProcessOptionsOrBuilder>(
+                getProcessOptions(), getParentForChildren(), isClean());
+        processOptions_ = null;
+      }
+      return processOptionsBuilder_;
+    }
+
     @java.lang.Override
     public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
       return super.setUnknownFields(unknownFields);
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1/src/main/java/com/google/cloud/documentai/v1/ProcessRequestOrBuilder.java b/java-document-ai/proto-google-cloud-document-ai-v1/src/main/java/com/google/cloud/documentai/v1/ProcessRequestOrBuilder.java
index dff7ebcf50d3..0b6cbec365a1 100644
--- a/java-document-ai/proto-google-cloud-document-ai-v1/src/main/java/com/google/cloud/documentai/v1/ProcessRequestOrBuilder.java
+++ b/java-document-ai/proto-google-cloud-document-ai-v1/src/main/java/com/google/cloud/documentai/v1/ProcessRequestOrBuilder.java
@@ -93,6 +93,41 @@ public interface ProcessRequestOrBuilder
    */
   com.google.cloud.documentai.v1.RawDocumentOrBuilder getRawDocumentOrBuilder();
 
+  /**
+   *
+   *
+   * 
+   * A raw document on Google Cloud Storage.
+   * 

+   *
+   * .google.cloud.documentai.v1.GcsDocument gcs_document = 8;
+   *
+   * @return Whether the gcsDocument field is set.
+   */
+  boolean hasGcsDocument();
+  /**
+   *
+   *
+   * 
+   * A raw document on Google Cloud Storage.
+   * 

+   *
+   * .google.cloud.documentai.v1.GcsDocument gcs_document = 8;
+   *
+   * @return The gcsDocument.
+   */
+  com.google.cloud.documentai.v1.GcsDocument getGcsDocument();
+  /**
+   *
+   *
+   * 
+   * A raw document on Google Cloud Storage.
+   * 

+   *
+   * .google.cloud.documentai.v1.GcsDocument gcs_document = 8;
+   */
+  com.google.cloud.documentai.v1.GcsDocumentOrBuilder getGcsDocumentOrBuilder();
+
   /**
    *
    *
@@ -198,5 +233,40 @@ public interface ProcessRequestOrBuilder
    */
   com.google.protobuf.FieldMaskOrBuilder getFieldMaskOrBuilder();
 
+  /**
+   *
+   *
+   * 
+   * Inference-time options for the process API
+   * 

+   *
+   * .google.cloud.documentai.v1.ProcessOptions process_options = 7;
+   *
+   * @return Whether the processOptions field is set.
+   */
+  boolean hasProcessOptions();
+  /**
+   *
+   *
+   * 
+   * Inference-time options for the process API
+   * 

+   *
+   * .google.cloud.documentai.v1.ProcessOptions process_options = 7;
+   *
+   * @return The processOptions.
+   */
+  com.google.cloud.documentai.v1.ProcessOptions getProcessOptions();
+  /**
+   *
+   *
+   * 
+   * Inference-time options for the process API
+   * 

+   *
+   * .google.cloud.documentai.v1.ProcessOptions process_options = 7;
+   */
+  com.google.cloud.documentai.v1.ProcessOptionsOrBuilder getProcessOptionsOrBuilder();
+
   com.google.cloud.documentai.v1.ProcessRequest.SourceCase getSourceCase();
 }
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1/src/main/java/com/google/cloud/documentai/v1/ProcessorVersion.java b/java-document-ai/proto-google-cloud-document-ai-v1/src/main/java/com/google/cloud/documentai/v1/ProcessorVersion.java
index 80a9843881d4..080accab954d 100644
--- a/java-document-ai/proto-google-cloud-document-ai-v1/src/main/java/com/google/cloud/documentai/v1/ProcessorVersion.java
+++ b/java-document-ai/proto-google-cloud-document-ai-v1/src/main/java/com/google/cloud/documentai/v1/ProcessorVersion.java
@@ -1720,10 +1720,10 @@ public com.google.protobuf.ByteString getKmsKeyVersionNameBytes() {
    *
    *
    * 
-   * Denotes that this `ProcessorVersion` is managed by Google.
+   * Output only. Denotes that this `ProcessorVersion` is managed by Google.
    * 

    *
-   * bool google_managed = 11;
+   * bool google_managed = 11 [(.google.api.field_behavior) = OUTPUT_ONLY];
    *
    * @return The googleManaged.
    */
@@ -3462,10 +3462,10 @@ public Builder setKmsKeyVersionNameBytes(com.google.protobuf.ByteString value) {
      *
      *
      * 
-     * Denotes that this `ProcessorVersion` is managed by Google.
+     * Output only. Denotes that this `ProcessorVersion` is managed by Google.
      * 

      *
-     * bool google_managed = 11;
+     * bool google_managed = 11 [(.google.api.field_behavior) = OUTPUT_ONLY];
      *
      * @return The googleManaged.
      */
@@ -3477,10 +3477,10 @@ public boolean getGoogleManaged() {
      *
      *
      * 
-     * Denotes that this `ProcessorVersion` is managed by Google.
+     * Output only. Denotes that this `ProcessorVersion` is managed by Google.
      * 

      *
-     * bool google_managed = 11;
+     * bool google_managed = 11 [(.google.api.field_behavior) = OUTPUT_ONLY];
      *
      * @param value The googleManaged to set.
      * @return This builder for chaining.
@@ -3496,10 +3496,10 @@ public Builder setGoogleManaged(boolean value) {
      *
      *
      * 
-     * Denotes that this `ProcessorVersion` is managed by Google.
+     * Output only. Denotes that this `ProcessorVersion` is managed by Google.
      * 

      *
-     * bool google_managed = 11;
+     * bool google_managed = 11 [(.google.api.field_behavior) = OUTPUT_ONLY];
      *
      * @return This builder for chaining.
      */
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1/src/main/java/com/google/cloud/documentai/v1/ProcessorVersionOrBuilder.java b/java-document-ai/proto-google-cloud-document-ai-v1/src/main/java/com/google/cloud/documentai/v1/ProcessorVersionOrBuilder.java
index 3d88117ec04c..5f20b105f498 100644
--- a/java-document-ai/proto-google-cloud-document-ai-v1/src/main/java/com/google/cloud/documentai/v1/ProcessorVersionOrBuilder.java
+++ b/java-document-ai/proto-google-cloud-document-ai-v1/src/main/java/com/google/cloud/documentai/v1/ProcessorVersionOrBuilder.java
@@ -261,10 +261,10 @@ public interface ProcessorVersionOrBuilder
    *
    *
    * 
-   * Denotes that this `ProcessorVersion` is managed by Google.
+   * Output only. Denotes that this `ProcessorVersion` is managed by Google.
    * 

    *
-   * bool google_managed = 11;
+   * bool google_managed = 11 [(.google.api.field_behavior) = OUTPUT_ONLY];
    *
    * @return The googleManaged.
    */
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1/src/main/java/com/google/cloud/documentai/v1/TrainProcessorVersionRequest.java b/java-document-ai/proto-google-cloud-document-ai-v1/src/main/java/com/google/cloud/documentai/v1/TrainProcessorVersionRequest.java
index fbe56c69bd4b..b64e8f5b0dd4 100644
--- a/java-document-ai/proto-google-cloud-document-ai-v1/src/main/java/com/google/cloud/documentai/v1/TrainProcessorVersionRequest.java
+++ b/java-document-ai/proto-google-cloud-document-ai-v1/src/main/java/com/google/cloud/documentai/v1/TrainProcessorVersionRequest.java
@@ -1136,6 +1136,955 @@ public com.google.protobuf.Parser getParserForType() {
     }
   }
 
+  public interface CustomDocumentExtractionOptionsOrBuilder
+      extends
+      // @@protoc_insertion_point(interface_extends:google.cloud.documentai.v1.TrainProcessorVersionRequest.CustomDocumentExtractionOptions)
+      com.google.protobuf.MessageOrBuilder {
+
+    /**
+     *
+     *
+     * 
+     * Training method to use for CDE training.
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1.TrainProcessorVersionRequest.CustomDocumentExtractionOptions.TrainingMethod training_method = 3;
+     * 
+     *
+     * @return The enum numeric value on the wire for trainingMethod.
+     */
+    int getTrainingMethodValue();
+    /**
+     *
+     *
+     * 
+     * Training method to use for CDE training.
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1.TrainProcessorVersionRequest.CustomDocumentExtractionOptions.TrainingMethod training_method = 3;
+     * 
+     *
+     * @return The trainingMethod.
+     */
+    com.google.cloud.documentai.v1.TrainProcessorVersionRequest.CustomDocumentExtractionOptions
+            .TrainingMethod
+        getTrainingMethod();
+  }
+  /**
+   *
+   *
+   * 
+   * Options to control the training of the Custom Document Extraction (CDE)
+   * Processor.
+   * 

+   *
+   * Protobuf type {@code
+   * google.cloud.documentai.v1.TrainProcessorVersionRequest.CustomDocumentExtractionOptions}
+   */
+  public static final class CustomDocumentExtractionOptions
+      extends com.google.protobuf.GeneratedMessageV3
+      implements
+      // @@protoc_insertion_point(message_implements:google.cloud.documentai.v1.TrainProcessorVersionRequest.CustomDocumentExtractionOptions)
+      CustomDocumentExtractionOptionsOrBuilder {
+    private static final long serialVersionUID = 0L;
+    // Use CustomDocumentExtractionOptions.newBuilder() to construct.
+    private CustomDocumentExtractionOptions(
+        com.google.protobuf.GeneratedMessageV3.Builder builder) {
+      super(builder);
+    }
+
+    private CustomDocumentExtractionOptions() {
+      trainingMethod_ = 0;
+    }
+
+    @java.lang.Override
+    @SuppressWarnings({"unused"})
+    protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+      return new CustomDocumentExtractionOptions();
+    }
+
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.documentai.v1.DocumentAiProcessorService
+          .internal_static_google_cloud_documentai_v1_TrainProcessorVersionRequest_CustomDocumentExtractionOptions_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.documentai.v1.DocumentAiProcessorService
+          .internal_static_google_cloud_documentai_v1_TrainProcessorVersionRequest_CustomDocumentExtractionOptions_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.documentai.v1.TrainProcessorVersionRequest
+                  .CustomDocumentExtractionOptions.class,
+              com.google.cloud.documentai.v1.TrainProcessorVersionRequest
+                  .CustomDocumentExtractionOptions.Builder.class);
+    }
+
+    /**
+     *
+     *
+     * 
+     * Training Method for CDE. TRAINING_METHOD_UNSPECIFIED will fallback to
+     * MODEL_BASED.
+     * 

+     *
+     * Protobuf enum {@code
+     * google.cloud.documentai.v1.TrainProcessorVersionRequest.CustomDocumentExtractionOptions.TrainingMethod}
+     */
+    public enum TrainingMethod implements com.google.protobuf.ProtocolMessageEnum {
+      /** TRAINING_METHOD_UNSPECIFIED = 0; */
+      TRAINING_METHOD_UNSPECIFIED(0),
+      /** MODEL_BASED = 1; */
+      MODEL_BASED(1),
+      /** TEMPLATE_BASED = 2; */
+      TEMPLATE_BASED(2),
+      UNRECOGNIZED(-1),
+      ;
+
+      /** TRAINING_METHOD_UNSPECIFIED = 0; */
+      public static final int TRAINING_METHOD_UNSPECIFIED_VALUE = 0;
+      /** MODEL_BASED = 1; */
+      public static final int MODEL_BASED_VALUE = 1;
+      /** TEMPLATE_BASED = 2; */
+      public static final int TEMPLATE_BASED_VALUE = 2;
+
+      public final int getNumber() {
+        if (this == UNRECOGNIZED) {
+          throw new java.lang.IllegalArgumentException(
+              "Can't get the number of an unknown enum value.");
+        }
+        return value;
+      }
+
+      /**
+       * @param value The numeric wire value of the corresponding enum entry.
+       * @return The enum associated with the given numeric wire value.
+       * @deprecated Use {@link #forNumber(int)} instead.
+       */
+      @java.lang.Deprecated
+      public static TrainingMethod valueOf(int value) {
+        return forNumber(value);
+      }
+
+      /**
+       * @param value The numeric wire value of the corresponding enum entry.
+       * @return The enum associated with the given numeric wire value.
+       */
+      public static TrainingMethod forNumber(int value) {
+        switch (value) {
+          case 0:
+            return TRAINING_METHOD_UNSPECIFIED;
+          case 1:
+            return MODEL_BASED;
+          case 2:
+            return TEMPLATE_BASED;
+          default:
+            return null;
+        }
+      }
+
+      public static com.google.protobuf.Internal.EnumLiteMap internalGetValueMap() {
+        return internalValueMap;
+      }
+
+      private static final com.google.protobuf.Internal.EnumLiteMap
+          internalValueMap =
+              new com.google.protobuf.Internal.EnumLiteMap() {
+                public TrainingMethod findValueByNumber(int number) {
+                  return TrainingMethod.forNumber(number);
+                }
+              };
+
+      public final com.google.protobuf.Descriptors.EnumValueDescriptor getValueDescriptor() {
+        if (this == UNRECOGNIZED) {
+          throw new java.lang.IllegalStateException(
+              "Can't get the descriptor of an unrecognized enum value.");
+        }
+        return getDescriptor().getValues().get(ordinal());
+      }
+
+      public final com.google.protobuf.Descriptors.EnumDescriptor getDescriptorForType() {
+        return getDescriptor();
+      }
+
+      public static final com.google.protobuf.Descriptors.EnumDescriptor getDescriptor() {
+        return com.google.cloud.documentai.v1.TrainProcessorVersionRequest
+            .CustomDocumentExtractionOptions.getDescriptor()
+            .getEnumTypes()
+            .get(0);
+      }
+
+      private static final TrainingMethod[] VALUES = values();
+
+      public static TrainingMethod valueOf(
+          com.google.protobuf.Descriptors.EnumValueDescriptor desc) {
+        if (desc.getType() != getDescriptor()) {
+          throw new java.lang.IllegalArgumentException("EnumValueDescriptor is not for this type.");
+        }
+        if (desc.getIndex() == -1) {
+          return UNRECOGNIZED;
+        }
+        return VALUES[desc.getIndex()];
+      }
+
+      private final int value;
+
+      private TrainingMethod(int value) {
+        this.value = value;
+      }
+
+      // @@protoc_insertion_point(enum_scope:google.cloud.documentai.v1.TrainProcessorVersionRequest.CustomDocumentExtractionOptions.TrainingMethod)
+    }
+
+    public static final int TRAINING_METHOD_FIELD_NUMBER = 3;
+    private int trainingMethod_ = 0;
+    /**
+     *
+     *
+     * 
+     * Training method to use for CDE training.
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1.TrainProcessorVersionRequest.CustomDocumentExtractionOptions.TrainingMethod training_method = 3;
+     * 
+     *
+     * @return The enum numeric value on the wire for trainingMethod.
+     */
+    @java.lang.Override
+    public int getTrainingMethodValue() {
+      return trainingMethod_;
+    }
+    /**
+     *
+     *
+     * 
+     * Training method to use for CDE training.
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1.TrainProcessorVersionRequest.CustomDocumentExtractionOptions.TrainingMethod training_method = 3;
+     * 
+     *
+     * @return The trainingMethod.
+     */
+    @java.lang.Override
+    public com.google.cloud.documentai.v1.TrainProcessorVersionRequest
+            .CustomDocumentExtractionOptions.TrainingMethod
+        getTrainingMethod() {
+      com.google.cloud.documentai.v1.TrainProcessorVersionRequest.CustomDocumentExtractionOptions
+              .TrainingMethod
+          result =
+              com.google.cloud.documentai.v1.TrainProcessorVersionRequest
+                  .CustomDocumentExtractionOptions.TrainingMethod.forNumber(trainingMethod_);
+      return result == null
+          ? com.google.cloud.documentai.v1.TrainProcessorVersionRequest
+              .CustomDocumentExtractionOptions.TrainingMethod.UNRECOGNIZED
+          : result;
+    }
+
+    private byte memoizedIsInitialized = -1;
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      byte isInitialized = memoizedIsInitialized;
+      if (isInitialized == 1) return true;
+      if (isInitialized == 0) return false;
+
+      memoizedIsInitialized = 1;
+      return true;
+    }
+
+    @java.lang.Override
+    public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+      if (trainingMethod_
+          != com.google.cloud.documentai.v1.TrainProcessorVersionRequest
+              .CustomDocumentExtractionOptions.TrainingMethod.TRAINING_METHOD_UNSPECIFIED
+              .getNumber()) {
+        output.writeEnum(3, trainingMethod_);
+      }
+      getUnknownFields().writeTo(output);
+    }
+
+    @java.lang.Override
+    public int getSerializedSize() {
+      int size = memoizedSize;
+      if (size != -1) return size;
+
+      size = 0;
+      if (trainingMethod_
+          != com.google.cloud.documentai.v1.TrainProcessorVersionRequest
+              .CustomDocumentExtractionOptions.TrainingMethod.TRAINING_METHOD_UNSPECIFIED
+              .getNumber()) {
+        size += com.google.protobuf.CodedOutputStream.computeEnumSize(3, trainingMethod_);
+      }
+      size += getUnknownFields().getSerializedSize();
+      memoizedSize = size;
+      return size;
+    }
+
+    @java.lang.Override
+    public boolean equals(final java.lang.Object obj) {
+      if (obj == this) {
+        return true;
+      }
+      if (!(obj
+          instanceof
+          com.google.cloud.documentai.v1.TrainProcessorVersionRequest
+              .CustomDocumentExtractionOptions)) {
+        return super.equals(obj);
+      }
+      com.google.cloud.documentai.v1.TrainProcessorVersionRequest.CustomDocumentExtractionOptions
+          other =
+              (com.google.cloud.documentai.v1.TrainProcessorVersionRequest
+                      .CustomDocumentExtractionOptions)
+                  obj;
+
+      if (trainingMethod_ != other.trainingMethod_) return false;
+      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
+      return true;
+    }
+
+    @java.lang.Override
+    public int hashCode() {
+      if (memoizedHashCode != 0) {
+        return memoizedHashCode;
+      }
+      int hash = 41;
+      hash = (19 * hash) + getDescriptor().hashCode();
+      hash = (37 * hash) + TRAINING_METHOD_FIELD_NUMBER;
+      hash = (53 * hash) + trainingMethod_;
+      hash = (29 * hash) + getUnknownFields().hashCode();
+      memoizedHashCode = hash;
+      return hash;
+    }
+
+    public static com.google.cloud.documentai.v1.TrainProcessorVersionRequest
+            .CustomDocumentExtractionOptions
+        parseFrom(java.nio.ByteBuffer data)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.documentai.v1.TrainProcessorVersionRequest
+            .CustomDocumentExtractionOptions
+        parseFrom(
+            java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.documentai.v1.TrainProcessorVersionRequest
+            .CustomDocumentExtractionOptions
+        parseFrom(com.google.protobuf.ByteString data)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.documentai.v1.TrainProcessorVersionRequest
+            .CustomDocumentExtractionOptions
+        parseFrom(
+            com.google.protobuf.ByteString data,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.documentai.v1.TrainProcessorVersionRequest
+            .CustomDocumentExtractionOptions
+        parseFrom(byte[] data) throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.documentai.v1.TrainProcessorVersionRequest
+            .CustomDocumentExtractionOptions
+        parseFrom(byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.documentai.v1.TrainProcessorVersionRequest
+            .CustomDocumentExtractionOptions
+        parseFrom(java.io.InputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.documentai.v1.TrainProcessorVersionRequest
+            .CustomDocumentExtractionOptions
+        parseFrom(
+            java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    public static com.google.cloud.documentai.v1.TrainProcessorVersionRequest
+            .CustomDocumentExtractionOptions
+        parseDelimitedFrom(java.io.InputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.documentai.v1.TrainProcessorVersionRequest
+            .CustomDocumentExtractionOptions
+        parseDelimitedFrom(
+            java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    public static com.google.cloud.documentai.v1.TrainProcessorVersionRequest
+            .CustomDocumentExtractionOptions
+        parseFrom(com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.documentai.v1.TrainProcessorVersionRequest
+            .CustomDocumentExtractionOptions
+        parseFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    @java.lang.Override
+    public Builder newBuilderForType() {
+      return newBuilder();
+    }
+
+    public static Builder newBuilder() {
+      return DEFAULT_INSTANCE.toBuilder();
+    }
+
+    public static Builder newBuilder(
+        com.google.cloud.documentai.v1.TrainProcessorVersionRequest.CustomDocumentExtractionOptions
+            prototype) {
+      return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+    }
+
+    @java.lang.Override
+    public Builder toBuilder() {
+      return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+    }
+
+    @java.lang.Override
+    protected Builder newBuilderForType(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      Builder builder = new Builder(parent);
+      return builder;
+    }
+    /**
+     *
+     *
+     * 
+     * Options to control the training of the Custom Document Extraction (CDE)
+     * Processor.
+     * 

+     *
+     * Protobuf type {@code
+     * google.cloud.documentai.v1.TrainProcessorVersionRequest.CustomDocumentExtractionOptions}
+     */
+    public static final class Builder
+        extends com.google.protobuf.GeneratedMessageV3.Builder
+        implements
+        // @@protoc_insertion_point(builder_implements:google.cloud.documentai.v1.TrainProcessorVersionRequest.CustomDocumentExtractionOptions)
+        com.google.cloud.documentai.v1.TrainProcessorVersionRequest
+            .CustomDocumentExtractionOptionsOrBuilder {
+      public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+        return com.google.cloud.documentai.v1.DocumentAiProcessorService
+            .internal_static_google_cloud_documentai_v1_TrainProcessorVersionRequest_CustomDocumentExtractionOptions_descriptor;
+      }
+
+      @java.lang.Override
+      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+          internalGetFieldAccessorTable() {
+        return com.google.cloud.documentai.v1.DocumentAiProcessorService
+            .internal_static_google_cloud_documentai_v1_TrainProcessorVersionRequest_CustomDocumentExtractionOptions_fieldAccessorTable
+            .ensureFieldAccessorsInitialized(
+                com.google.cloud.documentai.v1.TrainProcessorVersionRequest
+                    .CustomDocumentExtractionOptions.class,
+                com.google.cloud.documentai.v1.TrainProcessorVersionRequest
+                    .CustomDocumentExtractionOptions.Builder.class);
+      }
+
+      // Construct using
+      // com.google.cloud.documentai.v1.TrainProcessorVersionRequest.CustomDocumentExtractionOptions.newBuilder()
+      private Builder() {}
+
+      private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+        super(parent);
+      }
+
+      @java.lang.Override
+      public Builder clear() {
+        super.clear();
+        bitField0_ = 0;
+        trainingMethod_ = 0;
+        return this;
+      }
+
+      @java.lang.Override
+      public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+        return com.google.cloud.documentai.v1.DocumentAiProcessorService
+            .internal_static_google_cloud_documentai_v1_TrainProcessorVersionRequest_CustomDocumentExtractionOptions_descriptor;
+      }
+
+      @java.lang.Override
+      public com.google.cloud.documentai.v1.TrainProcessorVersionRequest
+              .CustomDocumentExtractionOptions
+          getDefaultInstanceForType() {
+        return com.google.cloud.documentai.v1.TrainProcessorVersionRequest
+            .CustomDocumentExtractionOptions.getDefaultInstance();
+      }
+
+      @java.lang.Override
+      public com.google.cloud.documentai.v1.TrainProcessorVersionRequest
+              .CustomDocumentExtractionOptions
+          build() {
+        com.google.cloud.documentai.v1.TrainProcessorVersionRequest.CustomDocumentExtractionOptions
+            result = buildPartial();
+        if (!result.isInitialized()) {
+          throw newUninitializedMessageException(result);
+        }
+        return result;
+      }
+
+      @java.lang.Override
+      public com.google.cloud.documentai.v1.TrainProcessorVersionRequest
+              .CustomDocumentExtractionOptions
+          buildPartial() {
+        com.google.cloud.documentai.v1.TrainProcessorVersionRequest.CustomDocumentExtractionOptions
+            result =
+                new com.google.cloud.documentai.v1.TrainProcessorVersionRequest
+                    .CustomDocumentExtractionOptions(this);
+        if (bitField0_ != 0) {
+          buildPartial0(result);
+        }
+        onBuilt();
+        return result;
+      }
+
+      private void buildPartial0(
+          com.google.cloud.documentai.v1.TrainProcessorVersionRequest
+                  .CustomDocumentExtractionOptions
+              result) {
+        int from_bitField0_ = bitField0_;
+        if (((from_bitField0_ & 0x00000001) != 0)) {
+          result.trainingMethod_ = trainingMethod_;
+        }
+      }
+
+      @java.lang.Override
+      public Builder clone() {
+        return super.clone();
+      }
+
+      @java.lang.Override
+      public Builder setField(
+          com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+        return super.setField(field, value);
+      }
+
+      @java.lang.Override
+      public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+        return super.clearField(field);
+      }
+
+      @java.lang.Override
+      public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+        return super.clearOneof(oneof);
+      }
+
+      @java.lang.Override
+      public Builder setRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field,
+          int index,
+          java.lang.Object value) {
+        return super.setRepeatedField(field, index, value);
+      }
+
+      @java.lang.Override
+      public Builder addRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+        return super.addRepeatedField(field, value);
+      }
+
+      @java.lang.Override
+      public Builder mergeFrom(com.google.protobuf.Message other) {
+        if (other
+            instanceof
+            com.google.cloud.documentai.v1.TrainProcessorVersionRequest
+                .CustomDocumentExtractionOptions) {
+          return mergeFrom(
+              (com.google.cloud.documentai.v1.TrainProcessorVersionRequest
+                      .CustomDocumentExtractionOptions)
+                  other);
+        } else {
+          super.mergeFrom(other);
+          return this;
+        }
+      }
+
+      public Builder mergeFrom(
+          com.google.cloud.documentai.v1.TrainProcessorVersionRequest
+                  .CustomDocumentExtractionOptions
+              other) {
+        if (other
+            == com.google.cloud.documentai.v1.TrainProcessorVersionRequest
+                .CustomDocumentExtractionOptions.getDefaultInstance()) return this;
+        if (other.trainingMethod_ != 0) {
+          setTrainingMethodValue(other.getTrainingMethodValue());
+        }
+        this.mergeUnknownFields(other.getUnknownFields());
+        onChanged();
+        return this;
+      }
+
+      @java.lang.Override
+      public final boolean isInitialized() {
+        return true;
+      }
+
+      @java.lang.Override
+      public Builder mergeFrom(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+        if (extensionRegistry == null) {
+          throw new java.lang.NullPointerException();
+        }
+        try {
+          boolean done = false;
+          while (!done) {
+            int tag = input.readTag();
+            switch (tag) {
+              case 0:
+                done = true;
+                break;
+              case 24:
+                {
+                  trainingMethod_ = input.readEnum();
+                  bitField0_ |= 0x00000001;
+                  break;
+                } // case 24
+              default:
+                {
+                  if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                    done = true; // was an endgroup tag
+                  }
+                  break;
+                } // default:
+            } // switch (tag)
+          } // while (!done)
+        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          throw e.unwrapIOException();
+        } finally {
+          onChanged();
+        } // finally
+        return this;
+      }
+
+      private int bitField0_;
+
+      private int trainingMethod_ = 0;
+      /**
+       *
+       *
+       * 
+       * Training method to use for CDE training.
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1.TrainProcessorVersionRequest.CustomDocumentExtractionOptions.TrainingMethod training_method = 3;
+       * 
+       *
+       * @return The enum numeric value on the wire for trainingMethod.
+       */
+      @java.lang.Override
+      public int getTrainingMethodValue() {
+        return trainingMethod_;
+      }
+      /**
+       *
+       *
+       * 
+       * Training method to use for CDE training.
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1.TrainProcessorVersionRequest.CustomDocumentExtractionOptions.TrainingMethod training_method = 3;
+       * 
+       *
+       * @param value The enum numeric value on the wire for trainingMethod to set.
+       * @return This builder for chaining.
+       */
+      public Builder setTrainingMethodValue(int value) {
+        trainingMethod_ = value;
+        bitField0_ |= 0x00000001;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * Training method to use for CDE training.
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1.TrainProcessorVersionRequest.CustomDocumentExtractionOptions.TrainingMethod training_method = 3;
+       * 
+       *
+       * @return The trainingMethod.
+       */
+      @java.lang.Override
+      public com.google.cloud.documentai.v1.TrainProcessorVersionRequest
+              .CustomDocumentExtractionOptions.TrainingMethod
+          getTrainingMethod() {
+        com.google.cloud.documentai.v1.TrainProcessorVersionRequest.CustomDocumentExtractionOptions
+                .TrainingMethod
+            result =
+                com.google.cloud.documentai.v1.TrainProcessorVersionRequest
+                    .CustomDocumentExtractionOptions.TrainingMethod.forNumber(trainingMethod_);
+        return result == null
+            ? com.google.cloud.documentai.v1.TrainProcessorVersionRequest
+                .CustomDocumentExtractionOptions.TrainingMethod.UNRECOGNIZED
+            : result;
+      }
+      /**
+       *
+       *
+       * 
+       * Training method to use for CDE training.
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1.TrainProcessorVersionRequest.CustomDocumentExtractionOptions.TrainingMethod training_method = 3;
+       * 
+       *
+       * @param value The trainingMethod to set.
+       * @return This builder for chaining.
+       */
+      public Builder setTrainingMethod(
+          com.google.cloud.documentai.v1.TrainProcessorVersionRequest
+                  .CustomDocumentExtractionOptions.TrainingMethod
+              value) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        bitField0_ |= 0x00000001;
+        trainingMethod_ = value.getNumber();
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * Training method to use for CDE training.
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1.TrainProcessorVersionRequest.CustomDocumentExtractionOptions.TrainingMethod training_method = 3;
+       * 
+       *
+       * @return This builder for chaining.
+       */
+      public Builder clearTrainingMethod() {
+        bitField0_ = (bitField0_ & ~0x00000001);
+        trainingMethod_ = 0;
+        onChanged();
+        return this;
+      }
+
+      @java.lang.Override
+      public final Builder setUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.setUnknownFields(unknownFields);
+      }
+
+      @java.lang.Override
+      public final Builder mergeUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.mergeUnknownFields(unknownFields);
+      }
+
+      // @@protoc_insertion_point(builder_scope:google.cloud.documentai.v1.TrainProcessorVersionRequest.CustomDocumentExtractionOptions)
+    }
+
+    // @@protoc_insertion_point(class_scope:google.cloud.documentai.v1.TrainProcessorVersionRequest.CustomDocumentExtractionOptions)
+    private static final com.google.cloud.documentai.v1.TrainProcessorVersionRequest
+            .CustomDocumentExtractionOptions
+        DEFAULT_INSTANCE;
+
+    static {
+      DEFAULT_INSTANCE =
+          new com.google.cloud.documentai.v1.TrainProcessorVersionRequest
+              .CustomDocumentExtractionOptions();
+    }
+
+    public static com.google.cloud.documentai.v1.TrainProcessorVersionRequest
+            .CustomDocumentExtractionOptions
+        getDefaultInstance() {
+      return DEFAULT_INSTANCE;
+    }
+
+    private static final com.google.protobuf.Parser PARSER =
+        new com.google.protobuf.AbstractParser() {
+          @java.lang.Override
+          public CustomDocumentExtractionOptions parsePartialFrom(
+              com.google.protobuf.CodedInputStream input,
+              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+              throws com.google.protobuf.InvalidProtocolBufferException {
+            Builder builder = newBuilder();
+            try {
+              builder.mergeFrom(input, extensionRegistry);
+            } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+              throw e.setUnfinishedMessage(builder.buildPartial());
+            } catch (com.google.protobuf.UninitializedMessageException e) {
+              throw e.asInvalidProtocolBufferException()
+                  .setUnfinishedMessage(builder.buildPartial());
+            } catch (java.io.IOException e) {
+              throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                  .setUnfinishedMessage(builder.buildPartial());
+            }
+            return builder.buildPartial();
+          }
+        };
+
+    public static com.google.protobuf.Parser parser() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Parser getParserForType() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.documentai.v1.TrainProcessorVersionRequest
+            .CustomDocumentExtractionOptions
+        getDefaultInstanceForType() {
+      return DEFAULT_INSTANCE;
+    }
+  }
+
+  private int processorFlagsCase_ = 0;
+
+  @SuppressWarnings("serial")
+  private java.lang.Object processorFlags_;
+
+  public enum ProcessorFlagsCase
+      implements
+          com.google.protobuf.Internal.EnumLite,
+          com.google.protobuf.AbstractMessage.InternalOneOfEnum {
+    CUSTOM_DOCUMENT_EXTRACTION_OPTIONS(5),
+    PROCESSORFLAGS_NOT_SET(0);
+    private final int value;
+
+    private ProcessorFlagsCase(int value) {
+      this.value = value;
+    }
+    /**
+     * @param value The number of the enum to look for.
+     * @return The enum associated with the given number.
+     * @deprecated Use {@link #forNumber(int)} instead.
+     */
+    @java.lang.Deprecated
+    public static ProcessorFlagsCase valueOf(int value) {
+      return forNumber(value);
+    }
+
+    public static ProcessorFlagsCase forNumber(int value) {
+      switch (value) {
+        case 5:
+          return CUSTOM_DOCUMENT_EXTRACTION_OPTIONS;
+        case 0:
+          return PROCESSORFLAGS_NOT_SET;
+        default:
+          return null;
+      }
+    }
+
+    public int getNumber() {
+      return this.value;
+    }
+  };
+
+  public ProcessorFlagsCase getProcessorFlagsCase() {
+    return ProcessorFlagsCase.forNumber(processorFlagsCase_);
+  }
+
+  public static final int CUSTOM_DOCUMENT_EXTRACTION_OPTIONS_FIELD_NUMBER = 5;
+  /**
+   *
+   *
+   * 
+   * Options to control Custom Document Extraction (CDE) Processor.
+   * 

+   *
+   * 
+   * .google.cloud.documentai.v1.TrainProcessorVersionRequest.CustomDocumentExtractionOptions custom_document_extraction_options = 5;
+   * 
+   *
+   * @return Whether the customDocumentExtractionOptions field is set.
+   */
+  @java.lang.Override
+  public boolean hasCustomDocumentExtractionOptions() {
+    return processorFlagsCase_ == 5;
+  }
+  /**
+   *
+   *
+   * 
+   * Options to control Custom Document Extraction (CDE) Processor.
+   * 

+   *
+   * 
+   * .google.cloud.documentai.v1.TrainProcessorVersionRequest.CustomDocumentExtractionOptions custom_document_extraction_options = 5;
+   * 
+   *
+   * @return The customDocumentExtractionOptions.
+   */
+  @java.lang.Override
+  public com.google.cloud.documentai.v1.TrainProcessorVersionRequest.CustomDocumentExtractionOptions
+      getCustomDocumentExtractionOptions() {
+    if (processorFlagsCase_ == 5) {
+      return (com.google.cloud.documentai.v1.TrainProcessorVersionRequest
+              .CustomDocumentExtractionOptions)
+          processorFlags_;
+    }
+    return com.google.cloud.documentai.v1.TrainProcessorVersionRequest
+        .CustomDocumentExtractionOptions.getDefaultInstance();
+  }
+  /**
+   *
+   *
+   * 
+   * Options to control Custom Document Extraction (CDE) Processor.
+   * 

+   *
+   * 
+   * .google.cloud.documentai.v1.TrainProcessorVersionRequest.CustomDocumentExtractionOptions custom_document_extraction_options = 5;
+   * 
+   */
+  @java.lang.Override
+  public com.google.cloud.documentai.v1.TrainProcessorVersionRequest
+          .CustomDocumentExtractionOptionsOrBuilder
+      getCustomDocumentExtractionOptionsOrBuilder() {
+    if (processorFlagsCase_ == 5) {
+      return (com.google.cloud.documentai.v1.TrainProcessorVersionRequest
+              .CustomDocumentExtractionOptions)
+          processorFlags_;
+    }
+    return com.google.cloud.documentai.v1.TrainProcessorVersionRequest
+        .CustomDocumentExtractionOptions.getDefaultInstance();
+  }
+
   public static final int PARENT_FIELD_NUMBER = 1;
 
   @SuppressWarnings("serial")
@@ -1445,6 +2394,13 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (inputData_ != null) {
       output.writeMessage(4, getInputData());
     }
+    if (processorFlagsCase_ == 5) {
+      output.writeMessage(
+          5,
+          (com.google.cloud.documentai.v1.TrainProcessorVersionRequest
+                  .CustomDocumentExtractionOptions)
+              processorFlags_);
+    }
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(baseProcessorVersion_)) {
       com.google.protobuf.GeneratedMessageV3.writeString(output, 8, baseProcessorVersion_);
     }
@@ -1469,6 +2425,14 @@ public int getSerializedSize() {
     if (inputData_ != null) {
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(4, getInputData());
     }
+    if (processorFlagsCase_ == 5) {
+      size +=
+          com.google.protobuf.CodedOutputStream.computeMessageSize(
+              5,
+              (com.google.cloud.documentai.v1.TrainProcessorVersionRequest
+                      .CustomDocumentExtractionOptions)
+                  processorFlags_);
+    }
     if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(baseProcessorVersion_)) {
       size += com.google.protobuf.GeneratedMessageV3.computeStringSize(8, baseProcessorVersion_);
     }
@@ -1505,6 +2469,15 @@ public boolean equals(final java.lang.Object obj) {
       if (!getInputData().equals(other.getInputData())) return false;
     }
     if (!getBaseProcessorVersion().equals(other.getBaseProcessorVersion())) return false;
+    if (!getProcessorFlagsCase().equals(other.getProcessorFlagsCase())) return false;
+    switch (processorFlagsCase_) {
+      case 5:
+        if (!getCustomDocumentExtractionOptions()
+            .equals(other.getCustomDocumentExtractionOptions())) return false;
+        break;
+      case 0:
+      default:
+    }
     if (!getUnknownFields().equals(other.getUnknownFields())) return false;
     return true;
   }
@@ -1532,6 +2505,14 @@ public int hashCode() {
     }
     hash = (37 * hash) + BASE_PROCESSOR_VERSION_FIELD_NUMBER;
     hash = (53 * hash) + getBaseProcessorVersion().hashCode();
+    switch (processorFlagsCase_) {
+      case 5:
+        hash = (37 * hash) + CUSTOM_DOCUMENT_EXTRACTION_OPTIONS_FIELD_NUMBER;
+        hash = (53 * hash) + getCustomDocumentExtractionOptions().hashCode();
+        break;
+      case 0:
+      default:
+    }
     hash = (29 * hash) + getUnknownFields().hashCode();
     memoizedHashCode = hash;
     return hash;
@@ -1674,6 +2655,9 @@ private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
     public Builder clear() {
       super.clear();
       bitField0_ = 0;
+      if (customDocumentExtractionOptionsBuilder_ != null) {
+        customDocumentExtractionOptionsBuilder_.clear();
+      }
       parent_ = "";
       processorVersion_ = null;
       if (processorVersionBuilder_ != null) {
@@ -1691,6 +2675,8 @@ public Builder clear() {
         inputDataBuilder_ = null;
       }
       baseProcessorVersion_ = "";
+      processorFlagsCase_ = 0;
+      processorFlags_ = null;
       return this;
     }
 
@@ -1721,31 +2707,41 @@ public com.google.cloud.documentai.v1.TrainProcessorVersionRequest buildPartial(
       if (bitField0_ != 0) {
         buildPartial0(result);
       }
+      buildPartialOneofs(result);
       onBuilt();
       return result;
     }
 
     private void buildPartial0(com.google.cloud.documentai.v1.TrainProcessorVersionRequest result) {
       int from_bitField0_ = bitField0_;
-      if (((from_bitField0_ & 0x00000001) != 0)) {
+      if (((from_bitField0_ & 0x00000002) != 0)) {
         result.parent_ = parent_;
       }
-      if (((from_bitField0_ & 0x00000002) != 0)) {
+      if (((from_bitField0_ & 0x00000004) != 0)) {
         result.processorVersion_ =
             processorVersionBuilder_ == null ? processorVersion_ : processorVersionBuilder_.build();
       }
-      if (((from_bitField0_ & 0x00000004) != 0)) {
+      if (((from_bitField0_ & 0x00000008) != 0)) {
         result.documentSchema_ =
             documentSchemaBuilder_ == null ? documentSchema_ : documentSchemaBuilder_.build();
       }
-      if (((from_bitField0_ & 0x00000008) != 0)) {
+      if (((from_bitField0_ & 0x00000010) != 0)) {
         result.inputData_ = inputDataBuilder_ == null ? inputData_ : inputDataBuilder_.build();
       }
-      if (((from_bitField0_ & 0x00000010) != 0)) {
+      if (((from_bitField0_ & 0x00000020) != 0)) {
         result.baseProcessorVersion_ = baseProcessorVersion_;
       }
     }
 
+    private void buildPartialOneofs(
+        com.google.cloud.documentai.v1.TrainProcessorVersionRequest result) {
+      result.processorFlagsCase_ = processorFlagsCase_;
+      result.processorFlags_ = this.processorFlags_;
+      if (processorFlagsCase_ == 5 && customDocumentExtractionOptionsBuilder_ != null) {
+        result.processorFlags_ = customDocumentExtractionOptionsBuilder_.build();
+      }
+    }
+
     @java.lang.Override
     public Builder clone() {
       return super.clone();
@@ -1794,7 +2790,7 @@ public Builder mergeFrom(com.google.cloud.documentai.v1.TrainProcessorVersionReq
         return this;
       if (!other.getParent().isEmpty()) {
         parent_ = other.parent_;
-        bitField0_ |= 0x00000001;
+        bitField0_ |= 0x00000002;
         onChanged();
       }
       if (other.hasProcessorVersion()) {
@@ -1808,9 +2804,20 @@ public Builder mergeFrom(com.google.cloud.documentai.v1.TrainProcessorVersionReq
       }
       if (!other.getBaseProcessorVersion().isEmpty()) {
         baseProcessorVersion_ = other.baseProcessorVersion_;
-        bitField0_ |= 0x00000010;
+        bitField0_ |= 0x00000020;
         onChanged();
       }
+      switch (other.getProcessorFlagsCase()) {
+        case CUSTOM_DOCUMENT_EXTRACTION_OPTIONS:
+          {
+            mergeCustomDocumentExtractionOptions(other.getCustomDocumentExtractionOptions());
+            break;
+          }
+        case PROCESSORFLAGS_NOT_SET:
+          {
+            break;
+          }
+      }
       this.mergeUnknownFields(other.getUnknownFields());
       onChanged();
       return this;
@@ -1840,32 +2847,40 @@ public Builder mergeFrom(
             case 10:
               {
                 parent_ = input.readStringRequireUtf8();
-                bitField0_ |= 0x00000001;
+                bitField0_ |= 0x00000002;
                 break;
               } // case 10
             case 18:
               {
                 input.readMessage(
                     getProcessorVersionFieldBuilder().getBuilder(), extensionRegistry);
-                bitField0_ |= 0x00000002;
+                bitField0_ |= 0x00000004;
                 break;
               } // case 18
             case 34:
               {
                 input.readMessage(getInputDataFieldBuilder().getBuilder(), extensionRegistry);
-                bitField0_ |= 0x00000008;
+                bitField0_ |= 0x00000010;
                 break;
               } // case 34
+            case 42:
+              {
+                input.readMessage(
+                    getCustomDocumentExtractionOptionsFieldBuilder().getBuilder(),
+                    extensionRegistry);
+                processorFlagsCase_ = 5;
+                break;
+              } // case 42
             case 66:
               {
                 baseProcessorVersion_ = input.readStringRequireUtf8();
-                bitField0_ |= 0x00000010;
+                bitField0_ |= 0x00000020;
                 break;
               } // case 66
             case 82:
               {
                 input.readMessage(getDocumentSchemaFieldBuilder().getBuilder(), extensionRegistry);
-                bitField0_ |= 0x00000004;
+                bitField0_ |= 0x00000008;
                 break;
               } // case 82
             default:
@@ -1885,8 +2900,286 @@ public Builder mergeFrom(
       return this;
     }
 
+    private int processorFlagsCase_ = 0;
+    private java.lang.Object processorFlags_;
+
+    public ProcessorFlagsCase getProcessorFlagsCase() {
+      return ProcessorFlagsCase.forNumber(processorFlagsCase_);
+    }
+
+    public Builder clearProcessorFlags() {
+      processorFlagsCase_ = 0;
+      processorFlags_ = null;
+      onChanged();
+      return this;
+    }
+
     private int bitField0_;
 
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.documentai.v1.TrainProcessorVersionRequest
+                .CustomDocumentExtractionOptions,
+            com.google.cloud.documentai.v1.TrainProcessorVersionRequest
+                .CustomDocumentExtractionOptions.Builder,
+            com.google.cloud.documentai.v1.TrainProcessorVersionRequest
+                .CustomDocumentExtractionOptionsOrBuilder>
+        customDocumentExtractionOptionsBuilder_;
+    /**
+     *
+     *
+     * 
+     * Options to control Custom Document Extraction (CDE) Processor.
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1.TrainProcessorVersionRequest.CustomDocumentExtractionOptions custom_document_extraction_options = 5;
+     * 
+     *
+     * @return Whether the customDocumentExtractionOptions field is set.
+     */
+    @java.lang.Override
+    public boolean hasCustomDocumentExtractionOptions() {
+      return processorFlagsCase_ == 5;
+    }
+    /**
+     *
+     *
+     * 
+     * Options to control Custom Document Extraction (CDE) Processor.
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1.TrainProcessorVersionRequest.CustomDocumentExtractionOptions custom_document_extraction_options = 5;
+     * 
+     *
+     * @return The customDocumentExtractionOptions.
+     */
+    @java.lang.Override
+    public com.google.cloud.documentai.v1.TrainProcessorVersionRequest
+            .CustomDocumentExtractionOptions
+        getCustomDocumentExtractionOptions() {
+      if (customDocumentExtractionOptionsBuilder_ == null) {
+        if (processorFlagsCase_ == 5) {
+          return (com.google.cloud.documentai.v1.TrainProcessorVersionRequest
+                  .CustomDocumentExtractionOptions)
+              processorFlags_;
+        }
+        return com.google.cloud.documentai.v1.TrainProcessorVersionRequest
+            .CustomDocumentExtractionOptions.getDefaultInstance();
+      } else {
+        if (processorFlagsCase_ == 5) {
+          return customDocumentExtractionOptionsBuilder_.getMessage();
+        }
+        return com.google.cloud.documentai.v1.TrainProcessorVersionRequest
+            .CustomDocumentExtractionOptions.getDefaultInstance();
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Options to control Custom Document Extraction (CDE) Processor.
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1.TrainProcessorVersionRequest.CustomDocumentExtractionOptions custom_document_extraction_options = 5;
+     * 
+     */
+    public Builder setCustomDocumentExtractionOptions(
+        com.google.cloud.documentai.v1.TrainProcessorVersionRequest.CustomDocumentExtractionOptions
+            value) {
+      if (customDocumentExtractionOptionsBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        processorFlags_ = value;
+        onChanged();
+      } else {
+        customDocumentExtractionOptionsBuilder_.setMessage(value);
+      }
+      processorFlagsCase_ = 5;
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Options to control Custom Document Extraction (CDE) Processor.
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1.TrainProcessorVersionRequest.CustomDocumentExtractionOptions custom_document_extraction_options = 5;
+     * 
+     */
+    public Builder setCustomDocumentExtractionOptions(
+        com.google.cloud.documentai.v1.TrainProcessorVersionRequest.CustomDocumentExtractionOptions
+                .Builder
+            builderForValue) {
+      if (customDocumentExtractionOptionsBuilder_ == null) {
+        processorFlags_ = builderForValue.build();
+        onChanged();
+      } else {
+        customDocumentExtractionOptionsBuilder_.setMessage(builderForValue.build());
+      }
+      processorFlagsCase_ = 5;
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Options to control Custom Document Extraction (CDE) Processor.
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1.TrainProcessorVersionRequest.CustomDocumentExtractionOptions custom_document_extraction_options = 5;
+     * 
+     */
+    public Builder mergeCustomDocumentExtractionOptions(
+        com.google.cloud.documentai.v1.TrainProcessorVersionRequest.CustomDocumentExtractionOptions
+            value) {
+      if (customDocumentExtractionOptionsBuilder_ == null) {
+        if (processorFlagsCase_ == 5
+            && processorFlags_
+                != com.google.cloud.documentai.v1.TrainProcessorVersionRequest
+                    .CustomDocumentExtractionOptions.getDefaultInstance()) {
+          processorFlags_ =
+              com.google.cloud.documentai.v1.TrainProcessorVersionRequest
+                  .CustomDocumentExtractionOptions.newBuilder(
+                      (com.google.cloud.documentai.v1.TrainProcessorVersionRequest
+                              .CustomDocumentExtractionOptions)
+                          processorFlags_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          processorFlags_ = value;
+        }
+        onChanged();
+      } else {
+        if (processorFlagsCase_ == 5) {
+          customDocumentExtractionOptionsBuilder_.mergeFrom(value);
+        } else {
+          customDocumentExtractionOptionsBuilder_.setMessage(value);
+        }
+      }
+      processorFlagsCase_ = 5;
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Options to control Custom Document Extraction (CDE) Processor.
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1.TrainProcessorVersionRequest.CustomDocumentExtractionOptions custom_document_extraction_options = 5;
+     * 
+     */
+    public Builder clearCustomDocumentExtractionOptions() {
+      if (customDocumentExtractionOptionsBuilder_ == null) {
+        if (processorFlagsCase_ == 5) {
+          processorFlagsCase_ = 0;
+          processorFlags_ = null;
+          onChanged();
+        }
+      } else {
+        if (processorFlagsCase_ == 5) {
+          processorFlagsCase_ = 0;
+          processorFlags_ = null;
+        }
+        customDocumentExtractionOptionsBuilder_.clear();
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Options to control Custom Document Extraction (CDE) Processor.
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1.TrainProcessorVersionRequest.CustomDocumentExtractionOptions custom_document_extraction_options = 5;
+     * 
+     */
+    public com.google.cloud.documentai.v1.TrainProcessorVersionRequest
+            .CustomDocumentExtractionOptions.Builder
+        getCustomDocumentExtractionOptionsBuilder() {
+      return getCustomDocumentExtractionOptionsFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * 
+     * Options to control Custom Document Extraction (CDE) Processor.
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1.TrainProcessorVersionRequest.CustomDocumentExtractionOptions custom_document_extraction_options = 5;
+     * 
+     */
+    @java.lang.Override
+    public com.google.cloud.documentai.v1.TrainProcessorVersionRequest
+            .CustomDocumentExtractionOptionsOrBuilder
+        getCustomDocumentExtractionOptionsOrBuilder() {
+      if ((processorFlagsCase_ == 5) && (customDocumentExtractionOptionsBuilder_ != null)) {
+        return customDocumentExtractionOptionsBuilder_.getMessageOrBuilder();
+      } else {
+        if (processorFlagsCase_ == 5) {
+          return (com.google.cloud.documentai.v1.TrainProcessorVersionRequest
+                  .CustomDocumentExtractionOptions)
+              processorFlags_;
+        }
+        return com.google.cloud.documentai.v1.TrainProcessorVersionRequest
+            .CustomDocumentExtractionOptions.getDefaultInstance();
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Options to control Custom Document Extraction (CDE) Processor.
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1.TrainProcessorVersionRequest.CustomDocumentExtractionOptions custom_document_extraction_options = 5;
+     * 
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.documentai.v1.TrainProcessorVersionRequest
+                .CustomDocumentExtractionOptions,
+            com.google.cloud.documentai.v1.TrainProcessorVersionRequest
+                .CustomDocumentExtractionOptions.Builder,
+            com.google.cloud.documentai.v1.TrainProcessorVersionRequest
+                .CustomDocumentExtractionOptionsOrBuilder>
+        getCustomDocumentExtractionOptionsFieldBuilder() {
+      if (customDocumentExtractionOptionsBuilder_ == null) {
+        if (!(processorFlagsCase_ == 5)) {
+          processorFlags_ =
+              com.google.cloud.documentai.v1.TrainProcessorVersionRequest
+                  .CustomDocumentExtractionOptions.getDefaultInstance();
+        }
+        customDocumentExtractionOptionsBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.documentai.v1.TrainProcessorVersionRequest
+                    .CustomDocumentExtractionOptions,
+                com.google.cloud.documentai.v1.TrainProcessorVersionRequest
+                    .CustomDocumentExtractionOptions.Builder,
+                com.google.cloud.documentai.v1.TrainProcessorVersionRequest
+                    .CustomDocumentExtractionOptionsOrBuilder>(
+                (com.google.cloud.documentai.v1.TrainProcessorVersionRequest
+                        .CustomDocumentExtractionOptions)
+                    processorFlags_,
+                getParentForChildren(),
+                isClean());
+        processorFlags_ = null;
+      }
+      processorFlagsCase_ = 5;
+      onChanged();
+      return customDocumentExtractionOptionsBuilder_;
+    }
+
     private java.lang.Object parent_ = "";
     /**
      *
@@ -1961,7 +3254,7 @@ public Builder setParent(java.lang.String value) {
         throw new NullPointerException();
       }
       parent_ = value;
-      bitField0_ |= 0x00000001;
+      bitField0_ |= 0x00000002;
       onChanged();
       return this;
     }
@@ -1982,7 +3275,7 @@ public Builder setParent(java.lang.String value) {
      */
     public Builder clearParent() {
       parent_ = getDefaultInstance().getParent();
-      bitField0_ = (bitField0_ & ~0x00000001);
+      bitField0_ = (bitField0_ & ~0x00000002);
       onChanged();
       return this;
     }
@@ -2008,7 +3301,7 @@ public Builder setParentBytes(com.google.protobuf.ByteString value) {
       }
       checkByteStringIsUtf8(value);
       parent_ = value;
-      bitField0_ |= 0x00000001;
+      bitField0_ |= 0x00000002;
       onChanged();
       return this;
     }
@@ -2033,7 +3326,7 @@ public Builder setParentBytes(com.google.protobuf.ByteString value) {
      * @return Whether the processorVersion field is set.
      */
     public boolean hasProcessorVersion() {
-      return ((bitField0_ & 0x00000002) != 0);
+      return ((bitField0_ & 0x00000004) != 0);
     }
     /**
      *
@@ -2077,7 +3370,7 @@ public Builder setProcessorVersion(com.google.cloud.documentai.v1.ProcessorVersi
       } else {
         processorVersionBuilder_.setMessage(value);
       }
-      bitField0_ |= 0x00000002;
+      bitField0_ |= 0x00000004;
       onChanged();
       return this;
     }
@@ -2099,7 +3392,7 @@ public Builder setProcessorVersion(
       } else {
         processorVersionBuilder_.setMessage(builderForValue.build());
       }
-      bitField0_ |= 0x00000002;
+      bitField0_ |= 0x00000004;
       onChanged();
       return this;
     }
@@ -2116,7 +3409,7 @@ public Builder setProcessorVersion(
      */
     public Builder mergeProcessorVersion(com.google.cloud.documentai.v1.ProcessorVersion value) {
       if (processorVersionBuilder_ == null) {
-        if (((bitField0_ & 0x00000002) != 0)
+        if (((bitField0_ & 0x00000004) != 0)
             && processorVersion_ != null
             && processorVersion_
                 != com.google.cloud.documentai.v1.ProcessorVersion.getDefaultInstance()) {
@@ -2127,7 +3420,7 @@ public Builder mergeProcessorVersion(com.google.cloud.documentai.v1.ProcessorVer
       } else {
         processorVersionBuilder_.mergeFrom(value);
       }
-      bitField0_ |= 0x00000002;
+      bitField0_ |= 0x00000004;
       onChanged();
       return this;
     }
@@ -2143,7 +3436,7 @@ public Builder mergeProcessorVersion(com.google.cloud.documentai.v1.ProcessorVer
      * 
      */
     public Builder clearProcessorVersion() {
-      bitField0_ = (bitField0_ & ~0x00000002);
+      bitField0_ = (bitField0_ & ~0x00000004);
       processorVersion_ = null;
       if (processorVersionBuilder_ != null) {
         processorVersionBuilder_.dispose();
@@ -2164,7 +3457,7 @@ public Builder clearProcessorVersion() {
      * 
      */
     public com.google.cloud.documentai.v1.ProcessorVersion.Builder getProcessorVersionBuilder() {
-      bitField0_ |= 0x00000002;
+      bitField0_ |= 0x00000004;
       onChanged();
       return getProcessorVersionFieldBuilder().getBuilder();
     }
@@ -2236,7 +3529,7 @@ public com.google.cloud.documentai.v1.ProcessorVersionOrBuilder getProcessorVers
      * @return Whether the documentSchema field is set.
      */
     public boolean hasDocumentSchema() {
-      return ((bitField0_ & 0x00000004) != 0);
+      return ((bitField0_ & 0x00000008) != 0);
     }
     /**
      *
@@ -2280,7 +3573,7 @@ public Builder setDocumentSchema(com.google.cloud.documentai.v1.DocumentSchema v
       } else {
         documentSchemaBuilder_.setMessage(value);
       }
-      bitField0_ |= 0x00000004;
+      bitField0_ |= 0x00000008;
       onChanged();
       return this;
     }
@@ -2302,7 +3595,7 @@ public Builder setDocumentSchema(
       } else {
         documentSchemaBuilder_.setMessage(builderForValue.build());
       }
-      bitField0_ |= 0x00000004;
+      bitField0_ |= 0x00000008;
       onChanged();
       return this;
     }
@@ -2319,7 +3612,7 @@ public Builder setDocumentSchema(
      */
     public Builder mergeDocumentSchema(com.google.cloud.documentai.v1.DocumentSchema value) {
       if (documentSchemaBuilder_ == null) {
-        if (((bitField0_ & 0x00000004) != 0)
+        if (((bitField0_ & 0x00000008) != 0)
             && documentSchema_ != null
             && documentSchema_
                 != com.google.cloud.documentai.v1.DocumentSchema.getDefaultInstance()) {
@@ -2330,7 +3623,7 @@ public Builder mergeDocumentSchema(com.google.cloud.documentai.v1.DocumentSchema
       } else {
         documentSchemaBuilder_.mergeFrom(value);
       }
-      bitField0_ |= 0x00000004;
+      bitField0_ |= 0x00000008;
       onChanged();
       return this;
     }
@@ -2346,7 +3639,7 @@ public Builder mergeDocumentSchema(com.google.cloud.documentai.v1.DocumentSchema
      * 
      */
     public Builder clearDocumentSchema() {
-      bitField0_ = (bitField0_ & ~0x00000004);
+      bitField0_ = (bitField0_ & ~0x00000008);
       documentSchema_ = null;
       if (documentSchemaBuilder_ != null) {
         documentSchemaBuilder_.dispose();
@@ -2367,7 +3660,7 @@ public Builder clearDocumentSchema() {
      * 
      */
     public com.google.cloud.documentai.v1.DocumentSchema.Builder getDocumentSchemaBuilder() {
-      bitField0_ |= 0x00000004;
+      bitField0_ |= 0x00000008;
       onChanged();
       return getDocumentSchemaFieldBuilder().getBuilder();
     }
@@ -2440,7 +3733,7 @@ public com.google.cloud.documentai.v1.DocumentSchemaOrBuilder getDocumentSchemaO
      * @return Whether the inputData field is set.
      */
     public boolean hasInputData() {
-      return ((bitField0_ & 0x00000008) != 0);
+      return ((bitField0_ & 0x00000010) != 0);
     }
     /**
      *
@@ -2488,7 +3781,7 @@ public Builder setInputData(
       } else {
         inputDataBuilder_.setMessage(value);
       }
-      bitField0_ |= 0x00000008;
+      bitField0_ |= 0x00000010;
       onChanged();
       return this;
     }
@@ -2512,7 +3805,7 @@ public Builder setInputData(
       } else {
         inputDataBuilder_.setMessage(builderForValue.build());
       }
-      bitField0_ |= 0x00000008;
+      bitField0_ |= 0x00000010;
       onChanged();
       return this;
     }
@@ -2531,7 +3824,7 @@ public Builder setInputData(
     public Builder mergeInputData(
         com.google.cloud.documentai.v1.TrainProcessorVersionRequest.InputData value) {
       if (inputDataBuilder_ == null) {
-        if (((bitField0_ & 0x00000008) != 0)
+        if (((bitField0_ & 0x00000010) != 0)
             && inputData_ != null
             && inputData_
                 != com.google.cloud.documentai.v1.TrainProcessorVersionRequest.InputData
@@ -2543,7 +3836,7 @@ public Builder mergeInputData(
       } else {
         inputDataBuilder_.mergeFrom(value);
       }
-      bitField0_ |= 0x00000008;
+      bitField0_ |= 0x00000010;
       onChanged();
       return this;
     }
@@ -2560,7 +3853,7 @@ public Builder mergeInputData(
      * 
      */
     public Builder clearInputData() {
-      bitField0_ = (bitField0_ & ~0x00000008);
+      bitField0_ = (bitField0_ & ~0x00000010);
       inputData_ = null;
       if (inputDataBuilder_ != null) {
         inputDataBuilder_.dispose();
@@ -2583,7 +3876,7 @@ public Builder clearInputData() {
      */
     public com.google.cloud.documentai.v1.TrainProcessorVersionRequest.InputData.Builder
         getInputDataBuilder() {
-      bitField0_ |= 0x00000008;
+      bitField0_ |= 0x00000010;
       onChanged();
       return getInputDataFieldBuilder().getBuilder();
     }
@@ -2707,7 +4000,7 @@ public Builder setBaseProcessorVersion(java.lang.String value) {
         throw new NullPointerException();
       }
       baseProcessorVersion_ = value;
-      bitField0_ |= 0x00000010;
+      bitField0_ |= 0x00000020;
       onChanged();
       return this;
     }
@@ -2726,7 +4019,7 @@ public Builder setBaseProcessorVersion(java.lang.String value) {
      */
     public Builder clearBaseProcessorVersion() {
       baseProcessorVersion_ = getDefaultInstance().getBaseProcessorVersion();
-      bitField0_ = (bitField0_ & ~0x00000010);
+      bitField0_ = (bitField0_ & ~0x00000020);
       onChanged();
       return this;
     }
@@ -2750,7 +4043,7 @@ public Builder setBaseProcessorVersionBytes(com.google.protobuf.ByteString value
       }
       checkByteStringIsUtf8(value);
       baseProcessorVersion_ = value;
-      bitField0_ |= 0x00000010;
+      bitField0_ |= 0x00000020;
       onChanged();
       return this;
     }
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1/src/main/java/com/google/cloud/documentai/v1/TrainProcessorVersionRequestOrBuilder.java b/java-document-ai/proto-google-cloud-document-ai-v1/src/main/java/com/google/cloud/documentai/v1/TrainProcessorVersionRequestOrBuilder.java
index a152020e58d2..f83b64732dd6 100644
--- a/java-document-ai/proto-google-cloud-document-ai-v1/src/main/java/com/google/cloud/documentai/v1/TrainProcessorVersionRequestOrBuilder.java
+++ b/java-document-ai/proto-google-cloud-document-ai-v1/src/main/java/com/google/cloud/documentai/v1/TrainProcessorVersionRequestOrBuilder.java
@@ -23,6 +23,50 @@ public interface TrainProcessorVersionRequestOrBuilder
     // @@protoc_insertion_point(interface_extends:google.cloud.documentai.v1.TrainProcessorVersionRequest)
     com.google.protobuf.MessageOrBuilder {
 
+  /**
+   *
+   *
+   * 
+   * Options to control Custom Document Extraction (CDE) Processor.
+   * 

+   *
+   * 
+   * .google.cloud.documentai.v1.TrainProcessorVersionRequest.CustomDocumentExtractionOptions custom_document_extraction_options = 5;
+   * 
+   *
+   * @return Whether the customDocumentExtractionOptions field is set.
+   */
+  boolean hasCustomDocumentExtractionOptions();
+  /**
+   *
+   *
+   * 
+   * Options to control Custom Document Extraction (CDE) Processor.
+   * 

+   *
+   * 
+   * .google.cloud.documentai.v1.TrainProcessorVersionRequest.CustomDocumentExtractionOptions custom_document_extraction_options = 5;
+   * 
+   *
+   * @return The customDocumentExtractionOptions.
+   */
+  com.google.cloud.documentai.v1.TrainProcessorVersionRequest.CustomDocumentExtractionOptions
+      getCustomDocumentExtractionOptions();
+  /**
+   *
+   *
+   * 
+   * Options to control Custom Document Extraction (CDE) Processor.
+   * 

+   *
+   * 
+   * .google.cloud.documentai.v1.TrainProcessorVersionRequest.CustomDocumentExtractionOptions custom_document_extraction_options = 5;
+   * 
+   */
+  com.google.cloud.documentai.v1.TrainProcessorVersionRequest
+          .CustomDocumentExtractionOptionsOrBuilder
+      getCustomDocumentExtractionOptionsOrBuilder();
+
   /**
    *
    *
@@ -211,4 +255,7 @@ public interface TrainProcessorVersionRequestOrBuilder
    * @return The bytes for baseProcessorVersion.
    */
   com.google.protobuf.ByteString getBaseProcessorVersionBytes();
+
+  com.google.cloud.documentai.v1.TrainProcessorVersionRequest.ProcessorFlagsCase
+      getProcessorFlagsCase();
 }
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1/src/main/proto/google/cloud/documentai/v1/document_io.proto b/java-document-ai/proto-google-cloud-document-ai-v1/src/main/proto/google/cloud/documentai/v1/document_io.proto
index 48adefbb98ba..6c2be1117342 100644
--- a/java-document-ai/proto-google-cloud-document-ai-v1/src/main/proto/google/cloud/documentai/v1/document_io.proto
+++ b/java-document-ai/proto-google-cloud-document-ai-v1/src/main/proto/google/cloud/documentai/v1/document_io.proto
@@ -101,3 +101,44 @@ message DocumentOutputConfig {
     GcsOutputConfig gcs_output_config = 1;
   }
 }
+
+// Config for Document OCR.
+message OcrConfig {
+  // Hints for OCR Engine
+  message Hints {
+    // List of BCP-47 language codes to use for OCR. In most cases, not
+    // specifying it yields the best results since it enables automatic language
+    // detection. For languages based on the Latin alphabet, setting hints is
+    // not needed. In rare cases, when the language of the text in the
+    // image is known, setting a hint will help get better results (although it
+    // will be a significant hindrance if the hint is wrong).
+    repeated string language_hints = 1;
+  }
+
+  // Hints for the OCR model.
+  Hints hints = 2;
+
+  // Enables special handling for PDFs with existing text information. Results
+  // in better text extraction quality in such PDF inputs.
+  bool enable_native_pdf_parsing = 3;
+
+  // Enables intelligent document quality scores after OCR. Can help with
+  // diagnosing why OCR responses are of poor quality for a given input.
+  // Adds additional latency comparable to regular OCR to the process call.
+  bool enable_image_quality_scores = 4;
+
+  // A list of advanced OCR options to further fine-tune OCR behavior. Current
+  // valid values are:
+  //
+  // - `legacy_layout`: a heuristics layout detection algorithm, which serves as
+  // an alternative to the current ML-based layout detection algorithm.
+  // Customers can choose the best suitable layout algorithm based on their
+  // situation.
+  repeated string advanced_ocr_options = 5;
+
+  // Includes symbol level OCR information if set to true.
+  bool enable_symbol = 6;
+
+  // Turn on font id model and returns font style information.
+  bool compute_style_info = 8;
+}
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1/src/main/proto/google/cloud/documentai/v1/document_processor_service.proto b/java-document-ai/proto-google-cloud-document-ai-v1/src/main/proto/google/cloud/documentai/v1/document_processor_service.proto
index 915f0fd64381..03c3d4090ba6 100644
--- a/java-document-ai/proto-google-cloud-document-ai-v1/src/main/proto/google/cloud/documentai/v1/document_processor_service.proto
+++ b/java-document-ai/proto-google-cloud-document-ai-v1/src/main/proto/google/cloud/documentai/v1/document_processor_service.proto
@@ -326,6 +326,13 @@ service DocumentProcessorService {
   }
 }
 
+// Options for Process API
+message ProcessOptions {
+  // Only applicable to `OCR_PROCESSOR`. Returns error if set on other
+  // processor types.
+  OcrConfig ocr_config = 1;
+}
+
 // Request message for the
 // [ProcessDocument][google.cloud.documentai.v1.DocumentProcessorService.ProcessDocument]
 // method.
@@ -337,6 +344,9 @@ message ProcessRequest {
 
     // A raw document content (bytes).
     RawDocument raw_document = 5;
+
+    // A raw document on Google Cloud Storage.
+    GcsDocument gcs_document = 8;
   }
 
   // Required. The resource name of the
@@ -363,6 +373,9 @@ message ProcessRequest {
   // output. Only supports top-level document and pages field, so it must be in
   // the form of `{document_field_name}` or `pages.{page_field_name}`.
   google.protobuf.FieldMask field_mask = 6;
+
+  // Inference-time options for the process API
+  ProcessOptions process_options = 7;
 }
 
 // The status of human review on a processed document.
@@ -443,6 +456,9 @@ message BatchProcessRequest {
   // Whether human review should be skipped for this request. Default to
   // `false`.
   bool skip_human_review = 4;
+
+  // Inference-time options for the process API
+  ProcessOptions process_options = 7;
 }
 
 // Response message for
@@ -895,6 +911,28 @@ message TrainProcessorVersionRequest {
     BatchDocumentsInputConfig test_documents = 4;
   }
 
+  // Options to control the training of the Custom Document Extraction (CDE)
+  // Processor.
+  message CustomDocumentExtractionOptions {
+    // Training Method for CDE. TRAINING_METHOD_UNSPECIFIED will fallback to
+    // MODEL_BASED.
+    enum TrainingMethod {
+      TRAINING_METHOD_UNSPECIFIED = 0;
+
+      MODEL_BASED = 1;
+
+      TEMPLATE_BASED = 2;
+    }
+
+    // Training method to use for CDE training.
+    TrainingMethod training_method = 3;
+  }
+
+  oneof processor_flags {
+    // Options to control Custom Document Extraction (CDE) Processor.
+    CustomDocumentExtractionOptions custom_document_extraction_options = 5;
+  }
+
   // Required. The parent (project, location and processor) to create the new
   // version for. Format:
   // `projects/{project}/locations/{location}/processors/{processor}`.
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1/src/main/proto/google/cloud/documentai/v1/processor.proto b/java-document-ai/proto-google-cloud-document-ai-v1/src/main/proto/google/cloud/documentai/v1/processor.proto
index 68b99bcbd956..9d3746e7e741 100644
--- a/java-document-ai/proto-google-cloud-document-ai-v1/src/main/proto/google/cloud/documentai/v1/processor.proto
+++ b/java-document-ai/proto-google-cloud-document-ai-v1/src/main/proto/google/cloud/documentai/v1/processor.proto
@@ -108,8 +108,8 @@ message ProcessorVersion {
   // The KMS key version with which data is encrypted.
   string kms_key_version_name = 10;
 
-  // Denotes that this `ProcessorVersion` is managed by Google.
-  bool google_managed = 11;
+  // Output only. Denotes that this `ProcessorVersion` is managed by Google.
+  bool google_managed = 11 [(google.api.field_behavior) = OUTPUT_ONLY];
 
   // If set, information about the eventual deprecation of this version.
   DeprecationInfo deprecation_info = 13;
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/java/com/google/cloud/documentai/v1beta2/Barcode.java b/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/java/com/google/cloud/documentai/v1beta2/Barcode.java
new file mode 100644
index 000000000000..d02fb62dcaed
--- /dev/null
+++ b/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/java/com/google/cloud/documentai/v1beta2/Barcode.java
@@ -0,0 +1,1211 @@
+/*
+ * Copyright 2023 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/documentai/v1beta2/barcode.proto
+
+package com.google.cloud.documentai.v1beta2;
+
+/**
+ *
+ *
+ * 
+ * Encodes the detailed information of a barcode.
+ * 

+ *
+ * Protobuf type {@code google.cloud.documentai.v1beta2.Barcode}
+ */
+public final class Barcode extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.documentai.v1beta2.Barcode)
+    BarcodeOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use Barcode.newBuilder() to construct.
+  private Barcode(com.google.protobuf.GeneratedMessageV3.Builder builder) {
+    super(builder);
+  }
+
+  private Barcode() {
+    format_ = "";
+    valueFormat_ = "";
+    rawValue_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new Barcode();
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.documentai.v1beta2.BarcodeProto
+        .internal_static_google_cloud_documentai_v1beta2_Barcode_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.documentai.v1beta2.BarcodeProto
+        .internal_static_google_cloud_documentai_v1beta2_Barcode_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.documentai.v1beta2.Barcode.class,
+            com.google.cloud.documentai.v1beta2.Barcode.Builder.class);
+  }
+
+  public static final int FORMAT_FIELD_NUMBER = 1;
+
+  @SuppressWarnings("serial")
+  private volatile java.lang.Object format_ = "";
+  /**
+   *
+   *
+   * 
+   * Format of a barcode.
+   * The supported formats are:
+   *
+   * - `CODE_128`: Code 128 type.
+   * - `CODE_39`: Code 39 type.
+   * - `CODE_93`: Code 93 type.
+   * - `CODABAR`: Codabar type.
+   * - `DATA_MATRIX`: 2D Data Matrix type.
+   * - `ITF`: ITF type.
+   * - `EAN_13`: EAN-13 type.
+   * - `EAN_8`: EAN-8 type.
+   * - `QR_CODE`: 2D QR code type.
+   * - `UPC_A`: UPC-A type.
+   * - `UPC_E`: UPC-E type.
+   * - `PDF417`: PDF417 type.
+   * - `AZTEC`: 2D Aztec code type.
+   * - `DATABAR`: GS1 DataBar code type.
+   * 

+   *
+   * string format = 1;
+   *
+   * @return The format.
+   */
+  @java.lang.Override
+  public java.lang.String getFormat() {
+    java.lang.Object ref = format_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      format_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * 
+   * Format of a barcode.
+   * The supported formats are:
+   *
+   * - `CODE_128`: Code 128 type.
+   * - `CODE_39`: Code 39 type.
+   * - `CODE_93`: Code 93 type.
+   * - `CODABAR`: Codabar type.
+   * - `DATA_MATRIX`: 2D Data Matrix type.
+   * - `ITF`: ITF type.
+   * - `EAN_13`: EAN-13 type.
+   * - `EAN_8`: EAN-8 type.
+   * - `QR_CODE`: 2D QR code type.
+   * - `UPC_A`: UPC-A type.
+   * - `UPC_E`: UPC-E type.
+   * - `PDF417`: PDF417 type.
+   * - `AZTEC`: 2D Aztec code type.
+   * - `DATABAR`: GS1 DataBar code type.
+   * 

+   *
+   * string format = 1;
+   *
+   * @return The bytes for format.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getFormatBytes() {
+    java.lang.Object ref = format_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      format_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int VALUE_FORMAT_FIELD_NUMBER = 2;
+
+  @SuppressWarnings("serial")
+  private volatile java.lang.Object valueFormat_ = "";
+  /**
+   *
+   *
+   * 
+   * Value format describes the format of the value that a barcode
+   * encodes.
+   * The supported formats are:
+   *
+   * - `CONTACT_INFO`: Contact information.
+   * - `EMAIL`: Email address.
+   * - `ISBN`: ISBN identifier.
+   * - `PHONE`: Phone number.
+   * - `PRODUCT`: Product.
+   * - `SMS`: SMS message.
+   * - `TEXT`: Text string.
+   * - `URL`: URL address.
+   * - `WIFI`: Wifi information.
+   * - `GEO`: Geo-localization.
+   * - `CALENDAR_EVENT`: Calendar event.
+   * - `DRIVER_LICENSE`: Driver's license.
+   * 

+   *
+   * string value_format = 2;
+   *
+   * @return The valueFormat.
+   */
+  @java.lang.Override
+  public java.lang.String getValueFormat() {
+    java.lang.Object ref = valueFormat_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      valueFormat_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * 
+   * Value format describes the format of the value that a barcode
+   * encodes.
+   * The supported formats are:
+   *
+   * - `CONTACT_INFO`: Contact information.
+   * - `EMAIL`: Email address.
+   * - `ISBN`: ISBN identifier.
+   * - `PHONE`: Phone number.
+   * - `PRODUCT`: Product.
+   * - `SMS`: SMS message.
+   * - `TEXT`: Text string.
+   * - `URL`: URL address.
+   * - `WIFI`: Wifi information.
+   * - `GEO`: Geo-localization.
+   * - `CALENDAR_EVENT`: Calendar event.
+   * - `DRIVER_LICENSE`: Driver's license.
+   * 

+   *
+   * string value_format = 2;
+   *
+   * @return The bytes for valueFormat.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getValueFormatBytes() {
+    java.lang.Object ref = valueFormat_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      valueFormat_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int RAW_VALUE_FIELD_NUMBER = 3;
+
+  @SuppressWarnings("serial")
+  private volatile java.lang.Object rawValue_ = "";
+  /**
+   *
+   *
+   * 
+   * Raw value encoded in the barcode.
+   * For example: `'MEBKM:TITLE:Google;URL:https://www.google.com;;'`.
+   * 

+   *
+   * string raw_value = 3;
+   *
+   * @return The rawValue.
+   */
+  @java.lang.Override
+  public java.lang.String getRawValue() {
+    java.lang.Object ref = rawValue_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      rawValue_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * 
+   * Raw value encoded in the barcode.
+   * For example: `'MEBKM:TITLE:Google;URL:https://www.google.com;;'`.
+   * 

+   *
+   * string raw_value = 3;
+   *
+   * @return The bytes for rawValue.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getRawValueBytes() {
+    java.lang.Object ref = rawValue_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      rawValue_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(format_)) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, format_);
+    }
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(valueFormat_)) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 2, valueFormat_);
+    }
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(rawValue_)) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 3, rawValue_);
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+    getUnknownFields().writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(format_)) {
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+    }
+    size += getUnknownFields().getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.documentai.v1beta2.Barcode)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.documentai.v1beta2.Barcode other =
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+
+    if (!getFormat().equals(other.getFormat())) return false;
+    if (!getValueFormat().equals(other.getValueFormat())) return false;
+    if (!getRawValue().equals(other.getRawValue())) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
+    return true;
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+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + FORMAT_FIELD_NUMBER;
+    hash = (53 * hash) + getFormat().hashCode();
+    hash = (37 * hash) + VALUE_FORMAT_FIELD_NUMBER;
+    hash = (53 * hash) + getValueFormat().hashCode();
+    hash = (37 * hash) + RAW_VALUE_FIELD_NUMBER;
+    hash = (53 * hash) + getRawValue().hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.documentai.v1beta2.Barcode parseFrom(java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.documentai.v1beta2.Barcode parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.documentai.v1beta2.Barcode parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.documentai.v1beta2.Barcode parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.documentai.v1beta2.Barcode parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.documentai.v1beta2.Barcode parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
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+
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+
+  public static com.google.cloud.documentai.v1beta2.Barcode parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
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+
+  public static com.google.cloud.documentai.v1beta2.Barcode parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
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+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
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+
+  public static com.google.cloud.documentai.v1beta2.Barcode parseFrom(
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+  }
+
+  public static com.google.cloud.documentai.v1beta2.Barcode parseFrom(
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+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
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+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(com.google.cloud.documentai.v1beta2.Barcode prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * 
+   * Encodes the detailed information of a barcode.
+   * 

+   *
+   * Protobuf type {@code google.cloud.documentai.v1beta2.Barcode}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.documentai.v1beta2.Barcode)
+      com.google.cloud.documentai.v1beta2.BarcodeOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.documentai.v1beta2.BarcodeProto
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+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
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+
+    // Construct using com.google.cloud.documentai.v1beta2.Barcode.newBuilder()
+    private Builder() {}
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
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+
+    @java.lang.Override
+    public Builder clear() {
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+      bitField0_ = 0;
+      format_ = "";
+      valueFormat_ = "";
+      rawValue_ = "";
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.documentai.v1beta2.BarcodeProto
+          .internal_static_google_cloud_documentai_v1beta2_Barcode_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta2.Barcode getDefaultInstanceForType() {
+      return com.google.cloud.documentai.v1beta2.Barcode.getDefaultInstance();
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+    @java.lang.Override
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+      if (!result.isInitialized()) {
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+      return result;
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+
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta2.Barcode buildPartial() {
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+      onBuilt();
+      return result;
+    }
+
+    private void buildPartial0(com.google.cloud.documentai.v1beta2.Barcode result) {
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+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
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+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
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+     * - `CODE_128`: Code 128 type.
+     * - `CODE_39`: Code 39 type.
+     * - `CODE_93`: Code 93 type.
+     * - `CODABAR`: Codabar type.
+     * - `DATA_MATRIX`: 2D Data Matrix type.
+     * - `ITF`: ITF type.
+     * - `EAN_13`: EAN-13 type.
+     * - `EAN_8`: EAN-8 type.
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+     * - `PDF417`: PDF417 type.
+     * - `AZTEC`: 2D Aztec code type.
+     * - `DATABAR`: GS1 DataBar code type.
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+    public java.lang.String getFormat() {
+      java.lang.Object ref = format_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        format_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Format of a barcode.
+     * The supported formats are:
+     *
+     * - `CODE_128`: Code 128 type.
+     * - `CODE_39`: Code 39 type.
+     * - `CODE_93`: Code 93 type.
+     * - `CODABAR`: Codabar type.
+     * - `DATA_MATRIX`: 2D Data Matrix type.
+     * - `ITF`: ITF type.
+     * - `EAN_13`: EAN-13 type.
+     * - `EAN_8`: EAN-8 type.
+     * - `QR_CODE`: 2D QR code type.
+     * - `UPC_A`: UPC-A type.
+     * - `UPC_E`: UPC-E type.
+     * - `PDF417`: PDF417 type.
+     * - `AZTEC`: 2D Aztec code type.
+     * - `DATABAR`: GS1 DataBar code type.
+     * 

+     *
+     * string format = 1;
+     *
+     * @return The bytes for format.
+     */
+    public com.google.protobuf.ByteString getFormatBytes() {
+      java.lang.Object ref = format_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        format_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Format of a barcode.
+     * The supported formats are:
+     *
+     * - `CODE_128`: Code 128 type.
+     * - `CODE_39`: Code 39 type.
+     * - `CODE_93`: Code 93 type.
+     * - `CODABAR`: Codabar type.
+     * - `DATA_MATRIX`: 2D Data Matrix type.
+     * - `ITF`: ITF type.
+     * - `EAN_13`: EAN-13 type.
+     * - `EAN_8`: EAN-8 type.
+     * - `QR_CODE`: 2D QR code type.
+     * - `UPC_A`: UPC-A type.
+     * - `UPC_E`: UPC-E type.
+     * - `PDF417`: PDF417 type.
+     * - `AZTEC`: 2D Aztec code type.
+     * - `DATABAR`: GS1 DataBar code type.
+     * 

+     *
+     * string format = 1;
+     *
+     * @param value The format to set.
+     * @return This builder for chaining.
+     */
+    public Builder setFormat(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      format_ = value;
+      bitField0_ |= 0x00000001;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Format of a barcode.
+     * The supported formats are:
+     *
+     * - `CODE_128`: Code 128 type.
+     * - `CODE_39`: Code 39 type.
+     * - `CODE_93`: Code 93 type.
+     * - `CODABAR`: Codabar type.
+     * - `DATA_MATRIX`: 2D Data Matrix type.
+     * - `ITF`: ITF type.
+     * - `EAN_13`: EAN-13 type.
+     * - `EAN_8`: EAN-8 type.
+     * - `QR_CODE`: 2D QR code type.
+     * - `UPC_A`: UPC-A type.
+     * - `UPC_E`: UPC-E type.
+     * - `PDF417`: PDF417 type.
+     * - `AZTEC`: 2D Aztec code type.
+     * - `DATABAR`: GS1 DataBar code type.
+     * 

+     *
+     * string format = 1;
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearFormat() {
+      format_ = getDefaultInstance().getFormat();
+      bitField0_ = (bitField0_ & ~0x00000001);
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Format of a barcode.
+     * The supported formats are:
+     *
+     * - `CODE_128`: Code 128 type.
+     * - `CODE_39`: Code 39 type.
+     * - `CODE_93`: Code 93 type.
+     * - `CODABAR`: Codabar type.
+     * - `DATA_MATRIX`: 2D Data Matrix type.
+     * - `ITF`: ITF type.
+     * - `EAN_13`: EAN-13 type.
+     * - `EAN_8`: EAN-8 type.
+     * - `QR_CODE`: 2D QR code type.
+     * - `UPC_A`: UPC-A type.
+     * - `UPC_E`: UPC-E type.
+     * - `PDF417`: PDF417 type.
+     * - `AZTEC`: 2D Aztec code type.
+     * - `DATABAR`: GS1 DataBar code type.
+     * 

+     *
+     * string format = 1;
+     *
+     * @param value The bytes for format to set.
+     * @return This builder for chaining.
+     */
+    public Builder setFormatBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+      format_ = value;
+      bitField0_ |= 0x00000001;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object valueFormat_ = "";
+    /**
+     *
+     *
+     * 
+     * Value format describes the format of the value that a barcode
+     * encodes.
+     * The supported formats are:
+     *
+     * - `CONTACT_INFO`: Contact information.
+     * - `EMAIL`: Email address.
+     * - `ISBN`: ISBN identifier.
+     * - `PHONE`: Phone number.
+     * - `PRODUCT`: Product.
+     * - `SMS`: SMS message.
+     * - `TEXT`: Text string.
+     * - `URL`: URL address.
+     * - `WIFI`: Wifi information.
+     * - `GEO`: Geo-localization.
+     * - `CALENDAR_EVENT`: Calendar event.
+     * - `DRIVER_LICENSE`: Driver's license.
+     * 

+     *
+     * string value_format = 2;
+     *
+     * @return The valueFormat.
+     */
+    public java.lang.String getValueFormat() {
+      java.lang.Object ref = valueFormat_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        valueFormat_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Value format describes the format of the value that a barcode
+     * encodes.
+     * The supported formats are:
+     *
+     * - `CONTACT_INFO`: Contact information.
+     * - `EMAIL`: Email address.
+     * - `ISBN`: ISBN identifier.
+     * - `PHONE`: Phone number.
+     * - `PRODUCT`: Product.
+     * - `SMS`: SMS message.
+     * - `TEXT`: Text string.
+     * - `URL`: URL address.
+     * - `WIFI`: Wifi information.
+     * - `GEO`: Geo-localization.
+     * - `CALENDAR_EVENT`: Calendar event.
+     * - `DRIVER_LICENSE`: Driver's license.
+     * 

+     *
+     * string value_format = 2;
+     *
+     * @return The bytes for valueFormat.
+     */
+    public com.google.protobuf.ByteString getValueFormatBytes() {
+      java.lang.Object ref = valueFormat_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        valueFormat_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Value format describes the format of the value that a barcode
+     * encodes.
+     * The supported formats are:
+     *
+     * - `CONTACT_INFO`: Contact information.
+     * - `EMAIL`: Email address.
+     * - `ISBN`: ISBN identifier.
+     * - `PHONE`: Phone number.
+     * - `PRODUCT`: Product.
+     * - `SMS`: SMS message.
+     * - `TEXT`: Text string.
+     * - `URL`: URL address.
+     * - `WIFI`: Wifi information.
+     * - `GEO`: Geo-localization.
+     * - `CALENDAR_EVENT`: Calendar event.
+     * - `DRIVER_LICENSE`: Driver's license.
+     * 

+     *
+     * string value_format = 2;
+     *
+     * @param value The valueFormat to set.
+     * @return This builder for chaining.
+     */
+    public Builder setValueFormat(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      valueFormat_ = value;
+      bitField0_ |= 0x00000002;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Value format describes the format of the value that a barcode
+     * encodes.
+     * The supported formats are:
+     *
+     * - `CONTACT_INFO`: Contact information.
+     * - `EMAIL`: Email address.
+     * - `ISBN`: ISBN identifier.
+     * - `PHONE`: Phone number.
+     * - `PRODUCT`: Product.
+     * - `SMS`: SMS message.
+     * - `TEXT`: Text string.
+     * - `URL`: URL address.
+     * - `WIFI`: Wifi information.
+     * - `GEO`: Geo-localization.
+     * - `CALENDAR_EVENT`: Calendar event.
+     * - `DRIVER_LICENSE`: Driver's license.
+     * 

+     *
+     * string value_format = 2;
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearValueFormat() {
+      valueFormat_ = getDefaultInstance().getValueFormat();
+      bitField0_ = (bitField0_ & ~0x00000002);
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Value format describes the format of the value that a barcode
+     * encodes.
+     * The supported formats are:
+     *
+     * - `CONTACT_INFO`: Contact information.
+     * - `EMAIL`: Email address.
+     * - `ISBN`: ISBN identifier.
+     * - `PHONE`: Phone number.
+     * - `PRODUCT`: Product.
+     * - `SMS`: SMS message.
+     * - `TEXT`: Text string.
+     * - `URL`: URL address.
+     * - `WIFI`: Wifi information.
+     * - `GEO`: Geo-localization.
+     * - `CALENDAR_EVENT`: Calendar event.
+     * - `DRIVER_LICENSE`: Driver's license.
+     * 

+     *
+     * string value_format = 2;
+     *
+     * @param value The bytes for valueFormat to set.
+     * @return This builder for chaining.
+     */
+    public Builder setValueFormatBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+      valueFormat_ = value;
+      bitField0_ |= 0x00000002;
+      onChanged();
+      return this;
+    }
+
+    private java.lang.Object rawValue_ = "";
+    /**
+     *
+     *
+     * 
+     * Raw value encoded in the barcode.
+     * For example: `'MEBKM:TITLE:Google;URL:https://www.google.com;;'`.
+     * 

+     *
+     * string raw_value = 3;
+     *
+     * @return The rawValue.
+     */
+    public java.lang.String getRawValue() {
+      java.lang.Object ref = rawValue_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        rawValue_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Raw value encoded in the barcode.
+     * For example: `'MEBKM:TITLE:Google;URL:https://www.google.com;;'`.
+     * 

+     *
+     * string raw_value = 3;
+     *
+     * @return The bytes for rawValue.
+     */
+    public com.google.protobuf.ByteString getRawValueBytes() {
+      java.lang.Object ref = rawValue_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        rawValue_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Raw value encoded in the barcode.
+     * For example: `'MEBKM:TITLE:Google;URL:https://www.google.com;;'`.
+     * 

+     *
+     * string raw_value = 3;
+     *
+     * @param value The rawValue to set.
+     * @return This builder for chaining.
+     */
+    public Builder setRawValue(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      rawValue_ = value;
+      bitField0_ |= 0x00000004;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Raw value encoded in the barcode.
+     * For example: `'MEBKM:TITLE:Google;URL:https://www.google.com;;'`.
+     * 

+     *
+     * string raw_value = 3;
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearRawValue() {
+      rawValue_ = getDefaultInstance().getRawValue();
+      bitField0_ = (bitField0_ & ~0x00000004);
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Raw value encoded in the barcode.
+     * For example: `'MEBKM:TITLE:Google;URL:https://www.google.com;;'`.
+     * 

+     *
+     * string raw_value = 3;
+     *
+     * @param value The bytes for rawValue to set.
+     * @return This builder for chaining.
+     */
+    public Builder setRawValueBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+      rawValue_ = value;
+      bitField0_ |= 0x00000004;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.documentai.v1beta2.Barcode)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.documentai.v1beta2.Barcode)
+  private static final com.google.cloud.documentai.v1beta2.Barcode DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.documentai.v1beta2.Barcode();
+  }
+
+  public static com.google.cloud.documentai.v1beta2.Barcode getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser PARSER =
+      new com.google.protobuf.AbstractParser() {
+        @java.lang.Override
+        public Barcode parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
+        }
+      };
+
+  public static com.google.protobuf.Parser parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.documentai.v1beta2.Barcode getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/java/com/google/cloud/documentai/v1beta2/BarcodeOrBuilder.java b/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/java/com/google/cloud/documentai/v1beta2/BarcodeOrBuilder.java
new file mode 100644
index 000000000000..480dcdcbd180
--- /dev/null
+++ b/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/java/com/google/cloud/documentai/v1beta2/BarcodeOrBuilder.java
@@ -0,0 +1,164 @@
+/*
+ * Copyright 2023 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/documentai/v1beta2/barcode.proto
+
+package com.google.cloud.documentai.v1beta2;
+
+public interface BarcodeOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.documentai.v1beta2.Barcode)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * 
+   * Format of a barcode.
+   * The supported formats are:
+   *
+   * - `CODE_128`: Code 128 type.
+   * - `CODE_39`: Code 39 type.
+   * - `CODE_93`: Code 93 type.
+   * - `CODABAR`: Codabar type.
+   * - `DATA_MATRIX`: 2D Data Matrix type.
+   * - `ITF`: ITF type.
+   * - `EAN_13`: EAN-13 type.
+   * - `EAN_8`: EAN-8 type.
+   * - `QR_CODE`: 2D QR code type.
+   * - `UPC_A`: UPC-A type.
+   * - `UPC_E`: UPC-E type.
+   * - `PDF417`: PDF417 type.
+   * - `AZTEC`: 2D Aztec code type.
+   * - `DATABAR`: GS1 DataBar code type.
+   * 

+   *
+   * string format = 1;
+   *
+   * @return The format.
+   */
+  java.lang.String getFormat();
+  /**
+   *
+   *
+   * 
+   * Format of a barcode.
+   * The supported formats are:
+   *
+   * - `CODE_128`: Code 128 type.
+   * - `CODE_39`: Code 39 type.
+   * - `CODE_93`: Code 93 type.
+   * - `CODABAR`: Codabar type.
+   * - `DATA_MATRIX`: 2D Data Matrix type.
+   * - `ITF`: ITF type.
+   * - `EAN_13`: EAN-13 type.
+   * - `EAN_8`: EAN-8 type.
+   * - `QR_CODE`: 2D QR code type.
+   * - `UPC_A`: UPC-A type.
+   * - `UPC_E`: UPC-E type.
+   * - `PDF417`: PDF417 type.
+   * - `AZTEC`: 2D Aztec code type.
+   * - `DATABAR`: GS1 DataBar code type.
+   * 

+   *
+   * string format = 1;
+   *
+   * @return The bytes for format.
+   */
+  com.google.protobuf.ByteString getFormatBytes();
+
+  /**
+   *
+   *
+   * 
+   * Value format describes the format of the value that a barcode
+   * encodes.
+   * The supported formats are:
+   *
+   * - `CONTACT_INFO`: Contact information.
+   * - `EMAIL`: Email address.
+   * - `ISBN`: ISBN identifier.
+   * - `PHONE`: Phone number.
+   * - `PRODUCT`: Product.
+   * - `SMS`: SMS message.
+   * - `TEXT`: Text string.
+   * - `URL`: URL address.
+   * - `WIFI`: Wifi information.
+   * - `GEO`: Geo-localization.
+   * - `CALENDAR_EVENT`: Calendar event.
+   * - `DRIVER_LICENSE`: Driver's license.
+   * 

+   *
+   * string value_format = 2;
+   *
+   * @return The valueFormat.
+   */
+  java.lang.String getValueFormat();
+  /**
+   *
+   *
+   * 
+   * Value format describes the format of the value that a barcode
+   * encodes.
+   * The supported formats are:
+   *
+   * - `CONTACT_INFO`: Contact information.
+   * - `EMAIL`: Email address.
+   * - `ISBN`: ISBN identifier.
+   * - `PHONE`: Phone number.
+   * - `PRODUCT`: Product.
+   * - `SMS`: SMS message.
+   * - `TEXT`: Text string.
+   * - `URL`: URL address.
+   * - `WIFI`: Wifi information.
+   * - `GEO`: Geo-localization.
+   * - `CALENDAR_EVENT`: Calendar event.
+   * - `DRIVER_LICENSE`: Driver's license.
+   * 

+   *
+   * string value_format = 2;
+   *
+   * @return The bytes for valueFormat.
+   */
+  com.google.protobuf.ByteString getValueFormatBytes();
+
+  /**
+   *
+   *
+   * 
+   * Raw value encoded in the barcode.
+   * For example: `'MEBKM:TITLE:Google;URL:https://www.google.com;;'`.
+   * 

+   *
+   * string raw_value = 3;
+   *
+   * @return The rawValue.
+   */
+  java.lang.String getRawValue();
+  /**
+   *
+   *
+   * 
+   * Raw value encoded in the barcode.
+   * For example: `'MEBKM:TITLE:Google;URL:https://www.google.com;;'`.
+   * 

+   *
+   * string raw_value = 3;
+   *
+   * @return The bytes for rawValue.
+   */
+  com.google.protobuf.ByteString getRawValueBytes();
+}
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/java/com/google/cloud/documentai/v1beta2/BarcodeProto.java b/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/java/com/google/cloud/documentai/v1beta2/BarcodeProto.java
new file mode 100644
index 000000000000..03ed8b9733e5
--- /dev/null
+++ b/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/java/com/google/cloud/documentai/v1beta2/BarcodeProto.java
@@ -0,0 +1,68 @@
+/*
+ * Copyright 2023 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/documentai/v1beta2/barcode.proto
+
+package com.google.cloud.documentai.v1beta2;
+
+public final class BarcodeProto {
+  private BarcodeProto() {}
+
+  public static void registerAllExtensions(com.google.protobuf.ExtensionRegistryLite registry) {}
+
+  public static void registerAllExtensions(com.google.protobuf.ExtensionRegistry registry) {
+    registerAllExtensions((com.google.protobuf.ExtensionRegistryLite) registry);
+  }
+
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_documentai_v1beta2_Barcode_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_documentai_v1beta2_Barcode_fieldAccessorTable;
+
+  public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
+    return descriptor;
+  }
+
+  private static com.google.protobuf.Descriptors.FileDescriptor descriptor;
+
+  static {
+    java.lang.String[] descriptorData = {
+      "\n-google/cloud/documentai/v1beta2/barcod"
+          + "e.proto\022\037google.cloud.documentai.v1beta2"
+          + "\"B\n\007Barcode\022\016\n\006format\030\001 \001(\t\022\024\n\014value_for"
+          + "mat\030\002 \001(\t\022\021\n\traw_value\030\003 \001(\tB\343\001\n#com.goo"
+          + "gle.cloud.documentai.v1beta2B\014BarcodePro"
+          + "toP\001ZCcloud.google.com/go/documentai/api"
+          + "v1beta2/documentaipb;documentaipb\252\002\037Goog"
+          + "le.Cloud.DocumentAI.V1Beta2\312\002\037Google\\Clo"
+          + "ud\\DocumentAI\\V1beta2\352\002\"Google::Cloud::D"
+          + "ocumentAI::V1beta2b\006proto3"
+    };
+    descriptor =
+        com.google.protobuf.Descriptors.FileDescriptor.internalBuildGeneratedFileFrom(
+            descriptorData, new com.google.protobuf.Descriptors.FileDescriptor[] {});
+    internal_static_google_cloud_documentai_v1beta2_Barcode_descriptor =
+        getDescriptor().getMessageTypes().get(0);
+    internal_static_google_cloud_documentai_v1beta2_Barcode_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_documentai_v1beta2_Barcode_descriptor,
+            new java.lang.String[] {
+              "Format", "ValueFormat", "RawValue",
+            });
+  }
+
+  // @@protoc_insertion_point(outer_class_scope)
+}
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/java/com/google/cloud/documentai/v1beta2/Document.java b/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/java/com/google/cloud/documentai/v1beta2/Document.java
index 112eeaad8d91..0cd54fce65dc 100644
--- a/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/java/com/google/cloud/documentai/v1beta2/Document.java
+++ b/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/java/com/google/cloud/documentai/v1beta2/Document.java
@@ -22,11 +22,10 @@
  *
  *
  * 
- * Document represents the canonical document resource in Document Understanding
- * AI.
- * It is an interchange format that provides insights into documents and allows
- * for collaboration between users and Document Understanding AI to iterate and
- * optimize for quality.
+ * Document represents the canonical document resource in Document AI. It is an
+ * interchange format that provides insights into documents and allows for
+ * collaboration between users and Document AI to iterate and optimize for
+ * quality.
  * 

  *
  * Protobuf type {@code google.cloud.documentai.v1beta2.Document}
@@ -48,7 +47,9 @@ private Document() {
     pages_ = java.util.Collections.emptyList();
     entities_ = java.util.Collections.emptyList();
     entityRelations_ = java.util.Collections.emptyList();
+    textChanges_ = java.util.Collections.emptyList();
     labels_ = java.util.Collections.emptyList();
+    revisions_ = java.util.Collections.emptyList();
   }
 
   @java.lang.Override
@@ -107,8 +108,9 @@ public interface ShardInfoOrBuilder
      *
      *
      * 
-     * The index of the first character in [Document.text][google.cloud.documentai.v1beta2.Document.text] in the overall
-     * document global text.
+     * The index of the first character in
+     * [Document.text][google.cloud.documentai.v1beta2.Document.text] in the
+     * overall document global text.
      * 

      *
      * int64 text_offset = 3;
@@ -203,8 +205,9 @@ public long getShardCount() {
      *
      *
      * 
-     * The index of the first character in [Document.text][google.cloud.documentai.v1beta2.Document.text] in the overall
-     * document global text.
+     * The index of the first character in
+     * [Document.text][google.cloud.documentai.v1beta2.Document.text] in the
+     * overall document global text.
      * 

      *
      * int64 text_offset = 3;
@@ -718,8 +721,9 @@ public Builder clearShardCount() {
        *
        *
        * 
-       * The index of the first character in [Document.text][google.cloud.documentai.v1beta2.Document.text] in the overall
-       * document global text.
+       * The index of the first character in
+       * [Document.text][google.cloud.documentai.v1beta2.Document.text] in the
+       * overall document global text.
        * 

        *
        * int64 text_offset = 3;
@@ -734,8 +738,9 @@ public long getTextOffset() {
        *
        *
        * 
-       * The index of the first character in [Document.text][google.cloud.documentai.v1beta2.Document.text] in the overall
-       * document global text.
+       * The index of the first character in
+       * [Document.text][google.cloud.documentai.v1beta2.Document.text] in the
+       * overall document global text.
        * 

        *
        * int64 text_offset = 3;
@@ -754,8 +759,9 @@ public Builder setTextOffset(long value) {
        *
        *
        * 
-       * The index of the first character in [Document.text][google.cloud.documentai.v1beta2.Document.text] in the overall
-       * document global text.
+       * The index of the first character in
+       * [Document.text][google.cloud.documentai.v1beta2.Document.text] in the
+       * overall document global text.
        * 

        *
        * int64 text_offset = 3;
@@ -938,9 +944,10 @@ public interface LabelOrBuilder
    *
    * 
    * Label attaches schema information and/or other metadata to segments within
-   * a [Document][google.cloud.documentai.v1beta2.Document]. Multiple [Label][google.cloud.documentai.v1beta2.Document.Label]s on a single field can denote either
-   * different labels, different instances of the same label created at
-   * different times, or some combination of both.
+   * a [Document][google.cloud.documentai.v1beta2.Document]. Multiple
+   * [Label][google.cloud.documentai.v1beta2.Document.Label]s on a single field
+   * can denote either different labels, different instances of the same label
+   * created at different times, or some combination of both.
    * 

    *
    * Protobuf type {@code google.cloud.documentai.v1beta2.Document.Label}
@@ -1380,9 +1387,10 @@ protected Builder newBuilderForType(
      *
      * 
      * Label attaches schema information and/or other metadata to segments within
-     * a [Document][google.cloud.documentai.v1beta2.Document]. Multiple [Label][google.cloud.documentai.v1beta2.Document.Label]s on a single field can denote either
-     * different labels, different instances of the same label created at
-     * different times, or some combination of both.
+     * a [Document][google.cloud.documentai.v1beta2.Document]. Multiple
+     * [Label][google.cloud.documentai.v1beta2.Document.Label]s on a single field
+     * can denote either different labels, different instances of the same label
+     * created at different times, or some combination of both.
      * 

      *
      * Protobuf type {@code google.cloud.documentai.v1beta2.Document.Label}
@@ -2024,7 +2032,8 @@ public interface StyleOrBuilder
      *
      *
      * 
-     * Text anchor indexing into the [Document.text][google.cloud.documentai.v1beta2.Document.text].
+     * Text anchor indexing into the
+     * [Document.text][google.cloud.documentai.v1beta2.Document.text].
      * 

      *
      * .google.cloud.documentai.v1beta2.Document.TextAnchor text_anchor = 1;
@@ -2036,7 +2045,8 @@ public interface StyleOrBuilder
      *
      *
      * 
-     * Text anchor indexing into the [Document.text][google.cloud.documentai.v1beta2.Document.text].
+     * Text anchor indexing into the
+     * [Document.text][google.cloud.documentai.v1beta2.Document.text].
      * 

      *
      * .google.cloud.documentai.v1beta2.Document.TextAnchor text_anchor = 1;
@@ -2048,7 +2058,8 @@ public interface StyleOrBuilder
      *
      *
      * 
-     * Text anchor indexing into the [Document.text][google.cloud.documentai.v1beta2.Document.text].
+     * Text anchor indexing into the
+     * [Document.text][google.cloud.documentai.v1beta2.Document.text].
      * 

      *
      * .google.cloud.documentai.v1beta2.Document.TextAnchor text_anchor = 1;
@@ -2129,8 +2140,8 @@ public interface StyleOrBuilder
      *
      *
      * 
-     * Font weight. Possible values are normal, bold, bolder, and lighter.
-     * https://www.w3schools.com/cssref/pr_font_weight.asp
+     * [Font weight](https://www.w3schools.com/cssref/pr_font_weight.asp).
+     * Possible values are `normal`, `bold`, `bolder`, and `lighter`.
      * 

      *
      * string font_weight = 4;
@@ -2142,8 +2153,8 @@ public interface StyleOrBuilder
      *
      *
      * 
-     * Font weight. Possible values are normal, bold, bolder, and lighter.
-     * https://www.w3schools.com/cssref/pr_font_weight.asp
+     * [Font weight](https://www.w3schools.com/cssref/pr_font_weight.asp).
+     * Possible values are `normal`, `bold`, `bolder`, and `lighter`.
      * 

      *
      * string font_weight = 4;
@@ -2156,8 +2167,8 @@ public interface StyleOrBuilder
      *
      *
      * 
-     * Text style. Possible values are normal, italic, and oblique.
-     * https://www.w3schools.com/cssref/pr_font_font-style.asp
+     * [Text style](https://www.w3schools.com/cssref/pr_font_font-style.asp).
+     * Possible values are `normal`, `italic`, and `oblique`.
      * 

      *
      * string text_style = 5;
@@ -2169,8 +2180,8 @@ public interface StyleOrBuilder
      *
      *
      * 
-     * Text style. Possible values are normal, italic, and oblique.
-     * https://www.w3schools.com/cssref/pr_font_font-style.asp
+     * [Text style](https://www.w3schools.com/cssref/pr_font_font-style.asp).
+     * Possible values are `normal`, `italic`, and `oblique`.
      * 

      *
      * string text_style = 5;
@@ -2183,9 +2194,10 @@ public interface StyleOrBuilder
      *
      *
      * 
-     * Text decoration. Follows CSS standard.
-     * <text-decoration-line> <text-decoration-color> <text-decoration-style>
-     * https://www.w3schools.com/cssref/pr_text_text-decoration.asp
+     * [Text
+     * decoration](https://www.w3schools.com/cssref/pr_text_text-decoration.asp).
+     * Follows CSS standard. <text-decoration-line> <text-decoration-color>
+     * <text-decoration-style>
      * 

      *
      * string text_decoration = 6;
@@ -2197,9 +2209,10 @@ public interface StyleOrBuilder
      *
      *
      * 
-     * Text decoration. Follows CSS standard.
-     * <text-decoration-line> <text-decoration-color> <text-decoration-style>
-     * https://www.w3schools.com/cssref/pr_text_text-decoration.asp
+     * [Text
+     * decoration](https://www.w3schools.com/cssref/pr_text_text-decoration.asp).
+     * Follows CSS standard. <text-decoration-line> <text-decoration-color>
+     * <text-decoration-style>
      * 

      *
      * string text_decoration = 6;
@@ -2242,6 +2255,33 @@ public interface StyleOrBuilder
      * .google.cloud.documentai.v1beta2.Document.Style.FontSize font_size = 7;
      */
     com.google.cloud.documentai.v1beta2.Document.Style.FontSizeOrBuilder getFontSizeOrBuilder();
+
+    /**
+     *
+     *
+     * 
+     * Font family such as `Arial`, `Times New Roman`.
+     * https://www.w3schools.com/cssref/pr_font_font-family.asp
+     * 

+     *
+     * string font_family = 8;
+     *
+     * @return The fontFamily.
+     */
+    java.lang.String getFontFamily();
+    /**
+     *
+     *
+     * 
+     * Font family such as `Arial`, `Times New Roman`.
+     * https://www.w3schools.com/cssref/pr_font_font-family.asp
+     * 

+     *
+     * string font_family = 8;
+     *
+     * @return The bytes for fontFamily.
+     */
+    com.google.protobuf.ByteString getFontFamilyBytes();
   }
   /**
    *
@@ -2267,6 +2307,7 @@ private Style() {
       fontWeight_ = "";
       textStyle_ = "";
       textDecoration_ = "";
+      fontFamily_ = "";
     }
 
     @java.lang.Override
@@ -2312,7 +2353,8 @@ public interface FontSizeOrBuilder
        *
        *
        * 
-       * Unit for the font size. Follows CSS naming (in, px, pt, etc.).
+       * Unit for the font size. Follows CSS naming (such as `in`, `px`, and
+       * `pt`).
        * 

        *
        * string unit = 2;
@@ -2324,7 +2366,8 @@ public interface FontSizeOrBuilder
        *
        *
        * 
-       * Unit for the font size. Follows CSS naming (in, px, pt, etc.).
+       * Unit for the font size. Follows CSS naming (such as `in`, `px`, and
+       * `pt`).
        * 

        *
        * string unit = 2;
@@ -2403,7 +2446,8 @@ public float getSize() {
        *
        *
        * 
-       * Unit for the font size. Follows CSS naming (in, px, pt, etc.).
+       * Unit for the font size. Follows CSS naming (such as `in`, `px`, and
+       * `pt`).
        * 

        *
        * string unit = 2;
@@ -2426,7 +2470,8 @@ public java.lang.String getUnit() {
        *
        *
        * 
-       * Unit for the font size. Follows CSS naming (in, px, pt, etc.).
+       * Unit for the font size. Follows CSS naming (such as `in`, `px`, and
+       * `pt`).
        * 

        *
        * string unit = 2;
@@ -2878,7 +2923,8 @@ public Builder clearSize() {
          *
          *
          * 
-         * Unit for the font size. Follows CSS naming (in, px, pt, etc.).
+         * Unit for the font size. Follows CSS naming (such as `in`, `px`, and
+         * `pt`).
          * 

          *
          * string unit = 2;
@@ -2900,7 +2946,8 @@ public java.lang.String getUnit() {
          *
          *
          * 
-         * Unit for the font size. Follows CSS naming (in, px, pt, etc.).
+         * Unit for the font size. Follows CSS naming (such as `in`, `px`, and
+         * `pt`).
          * 

          *
          * string unit = 2;
@@ -2922,7 +2969,8 @@ public com.google.protobuf.ByteString getUnitBytes() {
          *
          *
          * 
-         * Unit for the font size. Follows CSS naming (in, px, pt, etc.).
+         * Unit for the font size. Follows CSS naming (such as `in`, `px`, and
+         * `pt`).
          * 

          *
          * string unit = 2;
@@ -2943,7 +2991,8 @@ public Builder setUnit(java.lang.String value) {
          *
          *
          * 
-         * Unit for the font size. Follows CSS naming (in, px, pt, etc.).
+         * Unit for the font size. Follows CSS naming (such as `in`, `px`, and
+         * `pt`).
          * 

          *
          * string unit = 2;
@@ -2960,7 +3009,8 @@ public Builder clearUnit() {
          *
          *
          * 
-         * Unit for the font size. Follows CSS naming (in, px, pt, etc.).
+         * Unit for the font size. Follows CSS naming (such as `in`, `px`, and
+         * `pt`).
          * 

          *
          * string unit = 2;
@@ -3052,7 +3102,8 @@ public com.google.protobuf.Parser getParserForType() {
      *
      *
      * 
-     * Text anchor indexing into the [Document.text][google.cloud.documentai.v1beta2.Document.text].
+     * Text anchor indexing into the
+     * [Document.text][google.cloud.documentai.v1beta2.Document.text].
      * 

      *
      * .google.cloud.documentai.v1beta2.Document.TextAnchor text_anchor = 1;
@@ -3067,7 +3118,8 @@ public boolean hasTextAnchor() {
      *
      *
      * 
-     * Text anchor indexing into the [Document.text][google.cloud.documentai.v1beta2.Document.text].
+     * Text anchor indexing into the
+     * [Document.text][google.cloud.documentai.v1beta2.Document.text].
      * 

      *
      * .google.cloud.documentai.v1beta2.Document.TextAnchor text_anchor = 1;
@@ -3084,7 +3136,8 @@ public com.google.cloud.documentai.v1beta2.Document.TextAnchor getTextAnchor() {
      *
      *
      * 
-     * Text anchor indexing into the [Document.text][google.cloud.documentai.v1beta2.Document.text].
+     * Text anchor indexing into the
+     * [Document.text][google.cloud.documentai.v1beta2.Document.text].
      * 

      *
      * .google.cloud.documentai.v1beta2.Document.TextAnchor text_anchor = 1;
@@ -3201,8 +3254,8 @@ public com.google.type.ColorOrBuilder getBackgroundColorOrBuilder() {
      *
      *
      * 
-     * Font weight. Possible values are normal, bold, bolder, and lighter.
-     * https://www.w3schools.com/cssref/pr_font_weight.asp
+     * [Font weight](https://www.w3schools.com/cssref/pr_font_weight.asp).
+     * Possible values are `normal`, `bold`, `bolder`, and `lighter`.
      * 

      *
      * string font_weight = 4;
@@ -3225,8 +3278,8 @@ public java.lang.String getFontWeight() {
      *
      *
      * 
-     * Font weight. Possible values are normal, bold, bolder, and lighter.
-     * https://www.w3schools.com/cssref/pr_font_weight.asp
+     * [Font weight](https://www.w3schools.com/cssref/pr_font_weight.asp).
+     * Possible values are `normal`, `bold`, `bolder`, and `lighter`.
      * 

      *
      * string font_weight = 4;
@@ -3254,8 +3307,8 @@ public com.google.protobuf.ByteString getFontWeightBytes() {
      *
      *
      * 
-     * Text style. Possible values are normal, italic, and oblique.
-     * https://www.w3schools.com/cssref/pr_font_font-style.asp
+     * [Text style](https://www.w3schools.com/cssref/pr_font_font-style.asp).
+     * Possible values are `normal`, `italic`, and `oblique`.
      * 

      *
      * string text_style = 5;
@@ -3278,8 +3331,8 @@ public java.lang.String getTextStyle() {
      *
      *
      * 
-     * Text style. Possible values are normal, italic, and oblique.
-     * https://www.w3schools.com/cssref/pr_font_font-style.asp
+     * [Text style](https://www.w3schools.com/cssref/pr_font_font-style.asp).
+     * Possible values are `normal`, `italic`, and `oblique`.
      * 

      *
      * string text_style = 5;
@@ -3307,9 +3360,10 @@ public com.google.protobuf.ByteString getTextStyleBytes() {
      *
      *
      * 
-     * Text decoration. Follows CSS standard.
-     * <text-decoration-line> <text-decoration-color> <text-decoration-style>
-     * https://www.w3schools.com/cssref/pr_text_text-decoration.asp
+     * [Text
+     * decoration](https://www.w3schools.com/cssref/pr_text_text-decoration.asp).
+     * Follows CSS standard. <text-decoration-line> <text-decoration-color>
+     * <text-decoration-style>
      * 

      *
      * string text_decoration = 6;
@@ -3332,9 +3386,10 @@ public java.lang.String getTextDecoration() {
      *
      *
      * 
-     * Text decoration. Follows CSS standard.
-     * <text-decoration-line> <text-decoration-color> <text-decoration-style>
-     * https://www.w3schools.com/cssref/pr_text_text-decoration.asp
+     * [Text
+     * decoration](https://www.w3schools.com/cssref/pr_text_text-decoration.asp).
+     * Follows CSS standard. <text-decoration-line> <text-decoration-color>
+     * <text-decoration-style>
      * 

      *
      * string text_decoration = 6;
@@ -3405,6 +3460,59 @@ public com.google.cloud.documentai.v1beta2.Document.Style.FontSize getFontSize()
           : fontSize_;
     }
 
+    public static final int FONT_FAMILY_FIELD_NUMBER = 8;
+
+    @SuppressWarnings("serial")
+    private volatile java.lang.Object fontFamily_ = "";
+    /**
+     *
+     *
+     * 
+     * Font family such as `Arial`, `Times New Roman`.
+     * https://www.w3schools.com/cssref/pr_font_font-family.asp
+     * 

+     *
+     * string font_family = 8;
+     *
+     * @return The fontFamily.
+     */
+    @java.lang.Override
+    public java.lang.String getFontFamily() {
+      java.lang.Object ref = fontFamily_;
+      if (ref instanceof java.lang.String) {
+        return (java.lang.String) ref;
+      } else {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        fontFamily_ = s;
+        return s;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Font family such as `Arial`, `Times New Roman`.
+     * https://www.w3schools.com/cssref/pr_font_font-family.asp
+     * 

+     *
+     * string font_family = 8;
+     *
+     * @return The bytes for fontFamily.
+     */
+    @java.lang.Override
+    public com.google.protobuf.ByteString getFontFamilyBytes() {
+      java.lang.Object ref = fontFamily_;
+      if (ref instanceof java.lang.String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        fontFamily_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+
     private byte memoizedIsInitialized = -1;
 
     @java.lang.Override
@@ -3440,6 +3548,9 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
       if (fontSize_ != null) {
         output.writeMessage(7, getFontSize());
       }
+      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(fontFamily_)) {
+        com.google.protobuf.GeneratedMessageV3.writeString(output, 8, fontFamily_);
+      }
       getUnknownFields().writeTo(output);
     }
 
@@ -3470,6 +3581,9 @@ public int getSerializedSize() {
       if (fontSize_ != null) {
         size += com.google.protobuf.CodedOutputStream.computeMessageSize(7, getFontSize());
       }
+      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(fontFamily_)) {
+        size += com.google.protobuf.GeneratedMessageV3.computeStringSize(8, fontFamily_);
+      }
       size += getUnknownFields().getSerializedSize();
       memoizedSize = size;
       return size;
@@ -3505,6 +3619,7 @@ public boolean equals(final java.lang.Object obj) {
       if (hasFontSize()) {
         if (!getFontSize().equals(other.getFontSize())) return false;
       }
+      if (!getFontFamily().equals(other.getFontFamily())) return false;
       if (!getUnknownFields().equals(other.getUnknownFields())) return false;
       return true;
     }
@@ -3538,6 +3653,8 @@ public int hashCode() {
         hash = (37 * hash) + FONT_SIZE_FIELD_NUMBER;
         hash = (53 * hash) + getFontSize().hashCode();
       }
+      hash = (37 * hash) + FONT_FAMILY_FIELD_NUMBER;
+      hash = (53 * hash) + getFontFamily().hashCode();
       hash = (29 * hash) + getUnknownFields().hashCode();
       memoizedHashCode = hash;
       return hash;
@@ -3703,6 +3820,7 @@ public Builder clear() {
           fontSizeBuilder_.dispose();
           fontSizeBuilder_ = null;
         }
+        fontFamily_ = "";
         return this;
       }
 
@@ -3762,6 +3880,9 @@ private void buildPartial0(com.google.cloud.documentai.v1beta2.Document.Style re
         if (((from_bitField0_ & 0x00000040) != 0)) {
           result.fontSize_ = fontSizeBuilder_ == null ? fontSize_ : fontSizeBuilder_.build();
         }
+        if (((from_bitField0_ & 0x00000080) != 0)) {
+          result.fontFamily_ = fontFamily_;
+        }
       }
 
       @java.lang.Override
@@ -3839,6 +3960,11 @@ public Builder mergeFrom(com.google.cloud.documentai.v1beta2.Document.Style othe
         if (other.hasFontSize()) {
           mergeFontSize(other.getFontSize());
         }
+        if (!other.getFontFamily().isEmpty()) {
+          fontFamily_ = other.fontFamily_;
+          bitField0_ |= 0x00000080;
+          onChanged();
+        }
         this.mergeUnknownFields(other.getUnknownFields());
         onChanged();
         return this;
@@ -3908,6 +4034,12 @@ public Builder mergeFrom(
                   bitField0_ |= 0x00000040;
                   break;
                 } // case 58
+              case 66:
+                {
+                  fontFamily_ = input.readStringRequireUtf8();
+                  bitField0_ |= 0x00000080;
+                  break;
+                } // case 66
               default:
                 {
                   if (!super.parseUnknownField(input, extensionRegistry, tag)) {
@@ -3937,7 +4069,8 @@ public Builder mergeFrom(
        *
        *
        * 
-       * Text anchor indexing into the [Document.text][google.cloud.documentai.v1beta2.Document.text].
+       * Text anchor indexing into the
+       * [Document.text][google.cloud.documentai.v1beta2.Document.text].
        * 

        *
        * .google.cloud.documentai.v1beta2.Document.TextAnchor text_anchor = 1;
@@ -3951,7 +4084,8 @@ public boolean hasTextAnchor() {
        *
        *
        * 
-       * Text anchor indexing into the [Document.text][google.cloud.documentai.v1beta2.Document.text].
+       * Text anchor indexing into the
+       * [Document.text][google.cloud.documentai.v1beta2.Document.text].
        * 

        *
        * .google.cloud.documentai.v1beta2.Document.TextAnchor text_anchor = 1;
@@ -3971,7 +4105,8 @@ public com.google.cloud.documentai.v1beta2.Document.TextAnchor getTextAnchor() {
        *
        *
        * 
-       * Text anchor indexing into the [Document.text][google.cloud.documentai.v1beta2.Document.text].
+       * Text anchor indexing into the
+       * [Document.text][google.cloud.documentai.v1beta2.Document.text].
        * 

        *
        * .google.cloud.documentai.v1beta2.Document.TextAnchor text_anchor = 1;
@@ -3993,7 +4128,8 @@ public Builder setTextAnchor(com.google.cloud.documentai.v1beta2.Document.TextAn
        *
        *
        * 
-       * Text anchor indexing into the [Document.text][google.cloud.documentai.v1beta2.Document.text].
+       * Text anchor indexing into the
+       * [Document.text][google.cloud.documentai.v1beta2.Document.text].
        * 

        *
        * .google.cloud.documentai.v1beta2.Document.TextAnchor text_anchor = 1;
@@ -4013,7 +4149,8 @@ public Builder setTextAnchor(
        *
        *
        * 
-       * Text anchor indexing into the [Document.text][google.cloud.documentai.v1beta2.Document.text].
+       * Text anchor indexing into the
+       * [Document.text][google.cloud.documentai.v1beta2.Document.text].
        * 

        *
        * .google.cloud.documentai.v1beta2.Document.TextAnchor text_anchor = 1;
@@ -4040,7 +4177,8 @@ public Builder mergeTextAnchor(
        *
        *
        * 
-       * Text anchor indexing into the [Document.text][google.cloud.documentai.v1beta2.Document.text].
+       * Text anchor indexing into the
+       * [Document.text][google.cloud.documentai.v1beta2.Document.text].
        * 

        *
        * .google.cloud.documentai.v1beta2.Document.TextAnchor text_anchor = 1;
@@ -4059,7 +4197,8 @@ public Builder clearTextAnchor() {
        *
        *
        * 
-       * Text anchor indexing into the [Document.text][google.cloud.documentai.v1beta2.Document.text].
+       * Text anchor indexing into the
+       * [Document.text][google.cloud.documentai.v1beta2.Document.text].
        * 

        *
        * .google.cloud.documentai.v1beta2.Document.TextAnchor text_anchor = 1;
@@ -4074,7 +4213,8 @@ public Builder clearTextAnchor() {
        *
        *
        * 
-       * Text anchor indexing into the [Document.text][google.cloud.documentai.v1beta2.Document.text].
+       * Text anchor indexing into the
+       * [Document.text][google.cloud.documentai.v1beta2.Document.text].
        * 

        *
        * .google.cloud.documentai.v1beta2.Document.TextAnchor text_anchor = 1;
@@ -4093,7 +4233,8 @@ public Builder clearTextAnchor() {
        *
        *
        * 
-       * Text anchor indexing into the [Document.text][google.cloud.documentai.v1beta2.Document.text].
+       * Text anchor indexing into the
+       * [Document.text][google.cloud.documentai.v1beta2.Document.text].
        * 

        *
        * .google.cloud.documentai.v1beta2.Document.TextAnchor text_anchor = 1;
@@ -4473,8 +4614,8 @@ public com.google.type.ColorOrBuilder getBackgroundColorOrBuilder() {
        *
        *
        * 
-       * Font weight. Possible values are normal, bold, bolder, and lighter.
-       * https://www.w3schools.com/cssref/pr_font_weight.asp
+       * [Font weight](https://www.w3schools.com/cssref/pr_font_weight.asp).
+       * Possible values are `normal`, `bold`, `bolder`, and `lighter`.
        * 

        *
        * string font_weight = 4;
@@ -4496,8 +4637,8 @@ public java.lang.String getFontWeight() {
        *
        *
        * 
-       * Font weight. Possible values are normal, bold, bolder, and lighter.
-       * https://www.w3schools.com/cssref/pr_font_weight.asp
+       * [Font weight](https://www.w3schools.com/cssref/pr_font_weight.asp).
+       * Possible values are `normal`, `bold`, `bolder`, and `lighter`.
        * 

        *
        * string font_weight = 4;
@@ -4519,8 +4660,8 @@ public com.google.protobuf.ByteString getFontWeightBytes() {
        *
        *
        * 
-       * Font weight. Possible values are normal, bold, bolder, and lighter.
-       * https://www.w3schools.com/cssref/pr_font_weight.asp
+       * [Font weight](https://www.w3schools.com/cssref/pr_font_weight.asp).
+       * Possible values are `normal`, `bold`, `bolder`, and `lighter`.
        * 

        *
        * string font_weight = 4;
@@ -4541,8 +4682,8 @@ public Builder setFontWeight(java.lang.String value) {
        *
        *
        * 
-       * Font weight. Possible values are normal, bold, bolder, and lighter.
-       * https://www.w3schools.com/cssref/pr_font_weight.asp
+       * [Font weight](https://www.w3schools.com/cssref/pr_font_weight.asp).
+       * Possible values are `normal`, `bold`, `bolder`, and `lighter`.
        * 

        *
        * string font_weight = 4;
@@ -4559,8 +4700,8 @@ public Builder clearFontWeight() {
        *
        *
        * 
-       * Font weight. Possible values are normal, bold, bolder, and lighter.
-       * https://www.w3schools.com/cssref/pr_font_weight.asp
+       * [Font weight](https://www.w3schools.com/cssref/pr_font_weight.asp).
+       * Possible values are `normal`, `bold`, `bolder`, and `lighter`.
        * 

        *
        * string font_weight = 4;
@@ -4584,8 +4725,8 @@ public Builder setFontWeightBytes(com.google.protobuf.ByteString value) {
        *
        *
        * 
-       * Text style. Possible values are normal, italic, and oblique.
-       * https://www.w3schools.com/cssref/pr_font_font-style.asp
+       * [Text style](https://www.w3schools.com/cssref/pr_font_font-style.asp).
+       * Possible values are `normal`, `italic`, and `oblique`.
        * 

        *
        * string text_style = 5;
@@ -4607,8 +4748,8 @@ public java.lang.String getTextStyle() {
        *
        *
        * 
-       * Text style. Possible values are normal, italic, and oblique.
-       * https://www.w3schools.com/cssref/pr_font_font-style.asp
+       * [Text style](https://www.w3schools.com/cssref/pr_font_font-style.asp).
+       * Possible values are `normal`, `italic`, and `oblique`.
        * 

        *
        * string text_style = 5;
@@ -4630,8 +4771,8 @@ public com.google.protobuf.ByteString getTextStyleBytes() {
        *
        *
        * 
-       * Text style. Possible values are normal, italic, and oblique.
-       * https://www.w3schools.com/cssref/pr_font_font-style.asp
+       * [Text style](https://www.w3schools.com/cssref/pr_font_font-style.asp).
+       * Possible values are `normal`, `italic`, and `oblique`.
        * 

        *
        * string text_style = 5;
@@ -4652,8 +4793,8 @@ public Builder setTextStyle(java.lang.String value) {
        *
        *
        * 
-       * Text style. Possible values are normal, italic, and oblique.
-       * https://www.w3schools.com/cssref/pr_font_font-style.asp
+       * [Text style](https://www.w3schools.com/cssref/pr_font_font-style.asp).
+       * Possible values are `normal`, `italic`, and `oblique`.
        * 

        *
        * string text_style = 5;
@@ -4670,8 +4811,8 @@ public Builder clearTextStyle() {
        *
        *
        * 
-       * Text style. Possible values are normal, italic, and oblique.
-       * https://www.w3schools.com/cssref/pr_font_font-style.asp
+       * [Text style](https://www.w3schools.com/cssref/pr_font_font-style.asp).
+       * Possible values are `normal`, `italic`, and `oblique`.
        * 

        *
        * string text_style = 5;
@@ -4695,9 +4836,10 @@ public Builder setTextStyleBytes(com.google.protobuf.ByteString value) {
        *
        *
        * 
-       * Text decoration. Follows CSS standard.
-       * <text-decoration-line> <text-decoration-color> <text-decoration-style>
-       * https://www.w3schools.com/cssref/pr_text_text-decoration.asp
+       * [Text
+       * decoration](https://www.w3schools.com/cssref/pr_text_text-decoration.asp).
+       * Follows CSS standard. <text-decoration-line> <text-decoration-color>
+       * <text-decoration-style>
        * 

        *
        * string text_decoration = 6;
@@ -4719,9 +4861,10 @@ public java.lang.String getTextDecoration() {
        *
        *
        * 
-       * Text decoration. Follows CSS standard.
-       * <text-decoration-line> <text-decoration-color> <text-decoration-style>
-       * https://www.w3schools.com/cssref/pr_text_text-decoration.asp
+       * [Text
+       * decoration](https://www.w3schools.com/cssref/pr_text_text-decoration.asp).
+       * Follows CSS standard. <text-decoration-line> <text-decoration-color>
+       * <text-decoration-style>
        * 

        *
        * string text_decoration = 6;
@@ -4743,9 +4886,10 @@ public com.google.protobuf.ByteString getTextDecorationBytes() {
        *
        *
        * 
-       * Text decoration. Follows CSS standard.
-       * <text-decoration-line> <text-decoration-color> <text-decoration-style>
-       * https://www.w3schools.com/cssref/pr_text_text-decoration.asp
+       * [Text
+       * decoration](https://www.w3schools.com/cssref/pr_text_text-decoration.asp).
+       * Follows CSS standard. <text-decoration-line> <text-decoration-color>
+       * <text-decoration-style>
        * 

        *
        * string text_decoration = 6;
@@ -4766,9 +4910,10 @@ public Builder setTextDecoration(java.lang.String value) {
        *
        *
        * 
-       * Text decoration. Follows CSS standard.
-       * <text-decoration-line> <text-decoration-color> <text-decoration-style>
-       * https://www.w3schools.com/cssref/pr_text_text-decoration.asp
+       * [Text
+       * decoration](https://www.w3schools.com/cssref/pr_text_text-decoration.asp).
+       * Follows CSS standard. <text-decoration-line> <text-decoration-color>
+       * <text-decoration-style>
        * 

        *
        * string text_decoration = 6;
@@ -4785,9 +4930,10 @@ public Builder clearTextDecoration() {
        *
        *
        * 
-       * Text decoration. Follows CSS standard.
-       * <text-decoration-line> <text-decoration-color> <text-decoration-style>
-       * https://www.w3schools.com/cssref/pr_text_text-decoration.asp
+       * [Text
+       * decoration](https://www.w3schools.com/cssref/pr_text_text-decoration.asp).
+       * Follows CSS standard. <text-decoration-line> <text-decoration-color>
+       * <text-decoration-style>
        * 

        *
        * string text_decoration = 6;
@@ -4996,6 +5142,117 @@ public Builder clearFontSize() {
         return fontSizeBuilder_;
       }
 
+      private java.lang.Object fontFamily_ = "";
+      /**
+       *
+       *
+       * 
+       * Font family such as `Arial`, `Times New Roman`.
+       * https://www.w3schools.com/cssref/pr_font_font-family.asp
+       * 

+       *
+       * string font_family = 8;
+       *
+       * @return The fontFamily.
+       */
+      public java.lang.String getFontFamily() {
+        java.lang.Object ref = fontFamily_;
+        if (!(ref instanceof java.lang.String)) {
+          com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+          java.lang.String s = bs.toStringUtf8();
+          fontFamily_ = s;
+          return s;
+        } else {
+          return (java.lang.String) ref;
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * Font family such as `Arial`, `Times New Roman`.
+       * https://www.w3schools.com/cssref/pr_font_font-family.asp
+       * 

+       *
+       * string font_family = 8;
+       *
+       * @return The bytes for fontFamily.
+       */
+      public com.google.protobuf.ByteString getFontFamilyBytes() {
+        java.lang.Object ref = fontFamily_;
+        if (ref instanceof String) {
+          com.google.protobuf.ByteString b =
+              com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+          fontFamily_ = b;
+          return b;
+        } else {
+          return (com.google.protobuf.ByteString) ref;
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * Font family such as `Arial`, `Times New Roman`.
+       * https://www.w3schools.com/cssref/pr_font_font-family.asp
+       * 

+       *
+       * string font_family = 8;
+       *
+       * @param value The fontFamily to set.
+       * @return This builder for chaining.
+       */
+      public Builder setFontFamily(java.lang.String value) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        fontFamily_ = value;
+        bitField0_ |= 0x00000080;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * Font family such as `Arial`, `Times New Roman`.
+       * https://www.w3schools.com/cssref/pr_font_font-family.asp
+       * 

+       *
+       * string font_family = 8;
+       *
+       * @return This builder for chaining.
+       */
+      public Builder clearFontFamily() {
+        fontFamily_ = getDefaultInstance().getFontFamily();
+        bitField0_ = (bitField0_ & ~0x00000080);
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * Font family such as `Arial`, `Times New Roman`.
+       * https://www.w3schools.com/cssref/pr_font_font-family.asp
+       * 

+       *
+       * string font_family = 8;
+       *
+       * @param value The bytes for fontFamily to set.
+       * @return This builder for chaining.
+       */
+      public Builder setFontFamilyBytes(com.google.protobuf.ByteString value) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        checkByteStringIsUtf8(value);
+        fontFamily_ = value;
+        bitField0_ |= 0x00000080;
+        onChanged();
+        return this;
+      }
+
       @java.lang.Override
       public final Builder setUnknownFields(
           final com.google.protobuf.UnknownFieldSet unknownFields) {
@@ -5069,9 +5326,11 @@ public interface PageOrBuilder
      *
      *
      * 
-     * 1-based index for current [Page][google.cloud.documentai.v1beta2.Document.Page] in a parent [Document][google.cloud.documentai.v1beta2.Document].
-     * Useful when a page is taken out of a [Document][google.cloud.documentai.v1beta2.Document] for individual
-     * processing.
+     * 1-based index for current
+     * [Page][google.cloud.documentai.v1beta2.Document.Page] in a parent
+     * [Document][google.cloud.documentai.v1beta2.Document]. Useful when a page
+     * is taken out of a [Document][google.cloud.documentai.v1beta2.Document]
+     * for individual processing.
      * 

      *
      * int32 page_number = 1;
@@ -5080,6 +5339,110 @@ public interface PageOrBuilder
      */
     int getPageNumber();
 
+    /**
+     *
+     *
+     * 
+     * Rendered image for this page. This image is preprocessed to remove any
+     * skew, rotation, and distortions such that the annotation bounding boxes
+     * can be upright and axis-aligned.
+     * 

+     *
+     * .google.cloud.documentai.v1beta2.Document.Page.Image image = 13;
+     *
+     * @return Whether the image field is set.
+     */
+    boolean hasImage();
+    /**
+     *
+     *
+     * 
+     * Rendered image for this page. This image is preprocessed to remove any
+     * skew, rotation, and distortions such that the annotation bounding boxes
+     * can be upright and axis-aligned.
+     * 

+     *
+     * .google.cloud.documentai.v1beta2.Document.Page.Image image = 13;
+     *
+     * @return The image.
+     */
+    com.google.cloud.documentai.v1beta2.Document.Page.Image getImage();
+    /**
+     *
+     *
+     * 
+     * Rendered image for this page. This image is preprocessed to remove any
+     * skew, rotation, and distortions such that the annotation bounding boxes
+     * can be upright and axis-aligned.
+     * 

+     *
+     * .google.cloud.documentai.v1beta2.Document.Page.Image image = 13;
+     */
+    com.google.cloud.documentai.v1beta2.Document.Page.ImageOrBuilder getImageOrBuilder();
+
+    /**
+     *
+     *
+     * 
+     * Transformation matrices that were applied to the original document image
+     * to produce
+     * [Page.image][google.cloud.documentai.v1beta2.Document.Page.image].
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.Page.Matrix transforms = 14;
+     */
+    java.util.List getTransformsList();
+    /**
+     *
+     *
+     * 
+     * Transformation matrices that were applied to the original document image
+     * to produce
+     * [Page.image][google.cloud.documentai.v1beta2.Document.Page.image].
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.Page.Matrix transforms = 14;
+     */
+    com.google.cloud.documentai.v1beta2.Document.Page.Matrix getTransforms(int index);
+    /**
+     *
+     *
+     * 
+     * Transformation matrices that were applied to the original document image
+     * to produce
+     * [Page.image][google.cloud.documentai.v1beta2.Document.Page.image].
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.Page.Matrix transforms = 14;
+     */
+    int getTransformsCount();
+    /**
+     *
+     *
+     * 
+     * Transformation matrices that were applied to the original document image
+     * to produce
+     * [Page.image][google.cloud.documentai.v1beta2.Document.Page.image].
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.Page.Matrix transforms = 14;
+     */
+    java.util.List
+        getTransformsOrBuilderList();
+    /**
+     *
+     *
+     * 
+     * Transformation matrices that were applied to the original document image
+     * to produce
+     * [Page.image][google.cloud.documentai.v1beta2.Document.Page.image].
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.Page.Matrix transforms = 14;
+     */
+    com.google.cloud.documentai.v1beta2.Document.Page.MatrixOrBuilder getTransformsOrBuilder(
+        int index);
+
     /**
      *
      *
@@ -5119,7 +5482,8 @@ public interface PageOrBuilder
      *
      *
      * 
-     * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for the page.
+     * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for the
+     * page.
      * 

      *
      * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 3;
@@ -5131,7 +5495,8 @@ public interface PageOrBuilder
      *
      *
      * 
-     * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for the page.
+     * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for the
+     * page.
      * 

      *
      * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 3;
@@ -5143,7 +5508,8 @@ public interface PageOrBuilder
      *
      *
      * 
-     * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for the page.
+     * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for the
+     * page.
      * 

      *
      * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 3;
@@ -5629,6 +5995,215 @@ com.google.cloud.documentai.v1beta2.Document.Page.ParagraphOrBuilder getParagrap
      */
     com.google.cloud.documentai.v1beta2.Document.Page.FormFieldOrBuilder getFormFieldsOrBuilder(
         int index);
+
+    /**
+     *
+     *
+     * 
+     * A list of visually detected symbols on the page.
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.Page.Symbol symbols = 12;
+     */
+    java.util.List getSymbolsList();
+    /**
+     *
+     *
+     * 
+     * A list of visually detected symbols on the page.
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.Page.Symbol symbols = 12;
+     */
+    com.google.cloud.documentai.v1beta2.Document.Page.Symbol getSymbols(int index);
+    /**
+     *
+     *
+     * 
+     * A list of visually detected symbols on the page.
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.Page.Symbol symbols = 12;
+     */
+    int getSymbolsCount();
+    /**
+     *
+     *
+     * 
+     * A list of visually detected symbols on the page.
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.Page.Symbol symbols = 12;
+     */
+    java.util.List
+        getSymbolsOrBuilderList();
+    /**
+     *
+     *
+     * 
+     * A list of visually detected symbols on the page.
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.Page.Symbol symbols = 12;
+     */
+    com.google.cloud.documentai.v1beta2.Document.Page.SymbolOrBuilder getSymbolsOrBuilder(
+        int index);
+
+    /**
+     *
+     *
+     * 
+     * A list of detected barcodes.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode detected_barcodes = 15;
+     * 
+     */
+    java.util.List
+        getDetectedBarcodesList();
+    /**
+     *
+     *
+     * 
+     * A list of detected barcodes.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode detected_barcodes = 15;
+     * 
+     */
+    com.google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode getDetectedBarcodes(
+        int index);
+    /**
+     *
+     *
+     * 
+     * A list of detected barcodes.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode detected_barcodes = 15;
+     * 
+     */
+    int getDetectedBarcodesCount();
+    /**
+     *
+     *
+     * 
+     * A list of detected barcodes.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode detected_barcodes = 15;
+     * 
+     */
+    java.util.List<
+            ? extends com.google.cloud.documentai.v1beta2.Document.Page.DetectedBarcodeOrBuilder>
+        getDetectedBarcodesOrBuilderList();
+    /**
+     *
+     *
+     * 
+     * A list of detected barcodes.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode detected_barcodes = 15;
+     * 
+     */
+    com.google.cloud.documentai.v1beta2.Document.Page.DetectedBarcodeOrBuilder
+        getDetectedBarcodesOrBuilder(int index);
+
+    /**
+     *
+     *
+     * 
+     * Image quality scores.
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores image_quality_scores = 17;
+     * 
+     *
+     * @return Whether the imageQualityScores field is set.
+     */
+    boolean hasImageQualityScores();
+    /**
+     *
+     *
+     * 
+     * Image quality scores.
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores image_quality_scores = 17;
+     * 
+     *
+     * @return The imageQualityScores.
+     */
+    com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores getImageQualityScores();
+    /**
+     *
+     *
+     * 
+     * Image quality scores.
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores image_quality_scores = 17;
+     * 
+     */
+    com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScoresOrBuilder
+        getImageQualityScoresOrBuilder();
+
+    /**
+     *
+     *
+     * 
+     * The history of this page.
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 16 [deprecated = true];
+     * 
+     *
+     * @deprecated google.cloud.documentai.v1beta2.Document.Page.provenance is deprecated. See
+     *     google/cloud/documentai/v1beta2/document.proto;l=577
+     * @return Whether the provenance field is set.
+     */
+    @java.lang.Deprecated
+    boolean hasProvenance();
+    /**
+     *
+     *
+     * 
+     * The history of this page.
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 16 [deprecated = true];
+     * 
+     *
+     * @deprecated google.cloud.documentai.v1beta2.Document.Page.provenance is deprecated. See
+     *     google/cloud/documentai/v1beta2/document.proto;l=577
+     * @return The provenance.
+     */
+    @java.lang.Deprecated
+    com.google.cloud.documentai.v1beta2.Document.Provenance getProvenance();
+    /**
+     *
+     *
+     * 
+     * The history of this page.
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 16 [deprecated = true];
+     * 
+     */
+    @java.lang.Deprecated
+    com.google.cloud.documentai.v1beta2.Document.ProvenanceOrBuilder getProvenanceOrBuilder();
   }
   /**
    *
@@ -5650,6 +6225,7 @@ private Page(com.google.protobuf.GeneratedMessageV3.Builder builder) {
     }
 
     private Page() {
+      transforms_ = java.util.Collections.emptyList();
       detectedLanguages_ = java.util.Collections.emptyList();
       blocks_ = java.util.Collections.emptyList();
       paragraphs_ = java.util.Collections.emptyList();
@@ -5658,6 +6234,8 @@ private Page() {
       visualElements_ = java.util.Collections.emptyList();
       tables_ = java.util.Collections.emptyList();
       formFields_ = java.util.Collections.emptyList();
+      symbols_ = java.util.Collections.emptyList();
+      detectedBarcodes_ = java.util.Collections.emptyList();
     }
 
     @java.lang.Override
@@ -6544,615 +7122,231 @@ public com.google.protobuf.Parser getParserForType() {
       }
     }
 
-    public interface LayoutOrBuilder
+    public interface ImageOrBuilder
         extends
-        // @@protoc_insertion_point(interface_extends:google.cloud.documentai.v1beta2.Document.Page.Layout)
+        // @@protoc_insertion_point(interface_extends:google.cloud.documentai.v1beta2.Document.Page.Image)
         com.google.protobuf.MessageOrBuilder {
 
       /**
        *
        *
        * 
-       * Text anchor indexing into the [Document.text][google.cloud.documentai.v1beta2.Document.text].
-       * 

-       *
-       * .google.cloud.documentai.v1beta2.Document.TextAnchor text_anchor = 1;
-       *
-       * @return Whether the textAnchor field is set.
-       */
-      boolean hasTextAnchor();
-      /**
-       *
-       *
-       * 
-       * Text anchor indexing into the [Document.text][google.cloud.documentai.v1beta2.Document.text].
-       * 

-       *
-       * .google.cloud.documentai.v1beta2.Document.TextAnchor text_anchor = 1;
-       *
-       * @return The textAnchor.
-       */
-      com.google.cloud.documentai.v1beta2.Document.TextAnchor getTextAnchor();
-      /**
-       *
-       *
-       * 
-       * Text anchor indexing into the [Document.text][google.cloud.documentai.v1beta2.Document.text].
-       * 

-       *
-       * .google.cloud.documentai.v1beta2.Document.TextAnchor text_anchor = 1;
-       */
-      com.google.cloud.documentai.v1beta2.Document.TextAnchorOrBuilder getTextAnchorOrBuilder();
-
-      /**
-       *
-       *
-       * 
-       * Confidence of the current [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] within context of the object this
-       * layout is for. e.g. confidence can be for a single token, a table,
-       * a visual element, etc. depending on context. Range [0, 1].
+       * Raw byte content of the image.
        * 

        *
-       * float confidence = 2;
+       * bytes content = 1;
        *
-       * @return The confidence.
+       * @return The content.
        */
-      float getConfidence();
+      com.google.protobuf.ByteString getContent();
 
       /**
        *
        *
        * 
-       * The bounding polygon for the [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout].
+       * Encoding [media type (MIME
+       * type)](https://www.iana.org/assignments/media-types/media-types.xhtml)
+       * for the image.
        * 

        *
-       * .google.cloud.documentai.v1beta2.BoundingPoly bounding_poly = 3;
+       * string mime_type = 2;
        *
-       * @return Whether the boundingPoly field is set.
+       * @return The mimeType.
        */
-      boolean hasBoundingPoly();
+      java.lang.String getMimeType();
       /**
        *
        *
        * 
-       * The bounding polygon for the [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout].
+       * Encoding [media type (MIME
+       * type)](https://www.iana.org/assignments/media-types/media-types.xhtml)
+       * for the image.
        * 

        *
-       * .google.cloud.documentai.v1beta2.BoundingPoly bounding_poly = 3;
-       *
-       * @return The boundingPoly.
-       */
-      com.google.cloud.documentai.v1beta2.BoundingPoly getBoundingPoly();
-      /**
-       *
+       * string mime_type = 2;
        *
-       * 
-       * The bounding polygon for the [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout].
-       * 

-       *
-       * .google.cloud.documentai.v1beta2.BoundingPoly bounding_poly = 3;
+       * @return The bytes for mimeType.
        */
-      com.google.cloud.documentai.v1beta2.BoundingPolyOrBuilder getBoundingPolyOrBuilder();
+      com.google.protobuf.ByteString getMimeTypeBytes();
 
       /**
        *
        *
        * 
-       * Detected orientation for the [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout].
-       * 

-       *
-       * .google.cloud.documentai.v1beta2.Document.Page.Layout.Orientation orientation = 4;
-       * 
-       *
-       * @return The enum numeric value on the wire for orientation.
-       */
-      int getOrientationValue();
-      /**
-       *
-       *
-       * 
-       * Detected orientation for the [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout].
+       * Width of the image in pixels.
        * 

        *
-       * .google.cloud.documentai.v1beta2.Document.Page.Layout.Orientation orientation = 4;
-       * 
+       * int32 width = 3;
        *
-       * @return The orientation.
+       * @return The width.
        */
-      com.google.cloud.documentai.v1beta2.Document.Page.Layout.Orientation getOrientation();
+      int getWidth();
 
       /**
        *
        *
        * 
-       * Optional. This is the identifier used by referencing [PageAnchor][google.cloud.documentai.v1beta2.Document.PageAnchor]s.
-       * 

-       *
-       * string id = 5 [(.google.api.field_behavior) = OPTIONAL];
-       *
-       * @return The id.
-       */
-      java.lang.String getId();
-      /**
-       *
-       *
-       * 
-       * Optional. This is the identifier used by referencing [PageAnchor][google.cloud.documentai.v1beta2.Document.PageAnchor]s.
+       * Height of the image in pixels.
        * 

        *
-       * string id = 5 [(.google.api.field_behavior) = OPTIONAL];
+       * int32 height = 4;
        *
-       * @return The bytes for id.
+       * @return The height.
        */
-      com.google.protobuf.ByteString getIdBytes();
+      int getHeight();
     }
     /**
      *
      *
      * 
-     * Visual element describing a layout unit on a page.
+     * Rendered image contents for this page.
      * 

      *
-     * Protobuf type {@code google.cloud.documentai.v1beta2.Document.Page.Layout}
+     * Protobuf type {@code google.cloud.documentai.v1beta2.Document.Page.Image}
      */
-    public static final class Layout extends com.google.protobuf.GeneratedMessageV3
+    public static final class Image extends com.google.protobuf.GeneratedMessageV3
         implements
-        // @@protoc_insertion_point(message_implements:google.cloud.documentai.v1beta2.Document.Page.Layout)
-        LayoutOrBuilder {
+        // @@protoc_insertion_point(message_implements:google.cloud.documentai.v1beta2.Document.Page.Image)
+        ImageOrBuilder {
       private static final long serialVersionUID = 0L;
-      // Use Layout.newBuilder() to construct.
-      private Layout(com.google.protobuf.GeneratedMessageV3.Builder builder) {
+      // Use Image.newBuilder() to construct.
+      private Image(com.google.protobuf.GeneratedMessageV3.Builder builder) {
         super(builder);
       }
 
-      private Layout() {
-        orientation_ = 0;
-        id_ = "";
+      private Image() {
+        content_ = com.google.protobuf.ByteString.EMPTY;
+        mimeType_ = "";
       }
 
       @java.lang.Override
       @SuppressWarnings({"unused"})
       protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
-        return new Layout();
+        return new Image();
       }
 
       public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
         return com.google.cloud.documentai.v1beta2.DocumentProto
-            .internal_static_google_cloud_documentai_v1beta2_Document_Page_Layout_descriptor;
+            .internal_static_google_cloud_documentai_v1beta2_Document_Page_Image_descriptor;
       }
 
       @java.lang.Override
       protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
           internalGetFieldAccessorTable() {
         return com.google.cloud.documentai.v1beta2.DocumentProto
-            .internal_static_google_cloud_documentai_v1beta2_Document_Page_Layout_fieldAccessorTable
+            .internal_static_google_cloud_documentai_v1beta2_Document_Page_Image_fieldAccessorTable
             .ensureFieldAccessorsInitialized(
-                com.google.cloud.documentai.v1beta2.Document.Page.Layout.class,
-                com.google.cloud.documentai.v1beta2.Document.Page.Layout.Builder.class);
-      }
-
-      /**
-       *
-       *
-       * 
-       * Detected human reading orientation.
-       * 

-       *
-       * Protobuf enum {@code google.cloud.documentai.v1beta2.Document.Page.Layout.Orientation}
-       */
-      public enum Orientation implements com.google.protobuf.ProtocolMessageEnum {
-        /**
-         *
-         *
-         * 
-         * Unspecified orientation.
-         * 

-         *
-         * ORIENTATION_UNSPECIFIED = 0;
-         */
-        ORIENTATION_UNSPECIFIED(0),
-        /**
-         *
-         *
-         * 
-         * Orientation is aligned with page up.
-         * 

-         *
-         * PAGE_UP = 1;
-         */
-        PAGE_UP(1),
-        /**
-         *
-         *
-         * 
-         * Orientation is aligned with page right.
-         * Turn the head 90 degrees clockwise from upright to read.
-         * 

-         *
-         * PAGE_RIGHT = 2;
-         */
-        PAGE_RIGHT(2),
-        /**
-         *
-         *
-         * 
-         * Orientation is aligned with page down.
-         * Turn the head 180 degrees from upright to read.
-         * 

-         *
-         * PAGE_DOWN = 3;
-         */
-        PAGE_DOWN(3),
-        /**
-         *
-         *
-         * 
-         * Orientation is aligned with page left.
-         * Turn the head 90 degrees counterclockwise from upright to read.
-         * 

-         *
-         * PAGE_LEFT = 4;
-         */
-        PAGE_LEFT(4),
-        UNRECOGNIZED(-1),
-        ;
-
-        /**
-         *
-         *
-         * 
-         * Unspecified orientation.
-         * 

-         *
-         * ORIENTATION_UNSPECIFIED = 0;
-         */
-        public static final int ORIENTATION_UNSPECIFIED_VALUE = 0;
-        /**
-         *
-         *
-         * 
-         * Orientation is aligned with page up.
-         * 

-         *
-         * PAGE_UP = 1;
-         */
-        public static final int PAGE_UP_VALUE = 1;
-        /**
-         *
-         *
-         * 
-         * Orientation is aligned with page right.
-         * Turn the head 90 degrees clockwise from upright to read.
-         * 

-         *
-         * PAGE_RIGHT = 2;
-         */
-        public static final int PAGE_RIGHT_VALUE = 2;
-        /**
-         *
-         *
-         * 
-         * Orientation is aligned with page down.
-         * Turn the head 180 degrees from upright to read.
-         * 

-         *
-         * PAGE_DOWN = 3;
-         */
-        public static final int PAGE_DOWN_VALUE = 3;
-        /**
-         *
-         *
-         * 
-         * Orientation is aligned with page left.
-         * Turn the head 90 degrees counterclockwise from upright to read.
-         * 

-         *
-         * PAGE_LEFT = 4;
-         */
-        public static final int PAGE_LEFT_VALUE = 4;
-
-        public final int getNumber() {
-          if (this == UNRECOGNIZED) {
-            throw new java.lang.IllegalArgumentException(
-                "Can't get the number of an unknown enum value.");
-          }
-          return value;
-        }
-
-        /**
-         * @param value The numeric wire value of the corresponding enum entry.
-         * @return The enum associated with the given numeric wire value.
-         * @deprecated Use {@link #forNumber(int)} instead.
-         */
-        @java.lang.Deprecated
-        public static Orientation valueOf(int value) {
-          return forNumber(value);
-        }
-
-        /**
-         * @param value The numeric wire value of the corresponding enum entry.
-         * @return The enum associated with the given numeric wire value.
-         */
-        public static Orientation forNumber(int value) {
-          switch (value) {
-            case 0:
-              return ORIENTATION_UNSPECIFIED;
-            case 1:
-              return PAGE_UP;
-            case 2:
-              return PAGE_RIGHT;
-            case 3:
-              return PAGE_DOWN;
-            case 4:
-              return PAGE_LEFT;
-            default:
-              return null;
-          }
-        }
-
-        public static com.google.protobuf.Internal.EnumLiteMap internalGetValueMap() {
-          return internalValueMap;
-        }
-
-        private static final com.google.protobuf.Internal.EnumLiteMap
-            internalValueMap =
-                new com.google.protobuf.Internal.EnumLiteMap() {
-                  public Orientation findValueByNumber(int number) {
-                    return Orientation.forNumber(number);
-                  }
-                };
-
-        public final com.google.protobuf.Descriptors.EnumValueDescriptor getValueDescriptor() {
-          if (this == UNRECOGNIZED) {
-            throw new java.lang.IllegalStateException(
-                "Can't get the descriptor of an unrecognized enum value.");
-          }
-          return getDescriptor().getValues().get(ordinal());
-        }
-
-        public final com.google.protobuf.Descriptors.EnumDescriptor getDescriptorForType() {
-          return getDescriptor();
-        }
-
-        public static final com.google.protobuf.Descriptors.EnumDescriptor getDescriptor() {
-          return com.google.cloud.documentai.v1beta2.Document.Page.Layout.getDescriptor()
-              .getEnumTypes()
-              .get(0);
-        }
-
-        private static final Orientation[] VALUES = values();
-
-        public static Orientation valueOf(
-            com.google.protobuf.Descriptors.EnumValueDescriptor desc) {
-          if (desc.getType() != getDescriptor()) {
-            throw new java.lang.IllegalArgumentException(
-                "EnumValueDescriptor is not for this type.");
-          }
-          if (desc.getIndex() == -1) {
-            return UNRECOGNIZED;
-          }
-          return VALUES[desc.getIndex()];
-        }
-
-        private final int value;
-
-        private Orientation(int value) {
-          this.value = value;
-        }
-
-        // @@protoc_insertion_point(enum_scope:google.cloud.documentai.v1beta2.Document.Page.Layout.Orientation)
+                com.google.cloud.documentai.v1beta2.Document.Page.Image.class,
+                com.google.cloud.documentai.v1beta2.Document.Page.Image.Builder.class);
       }
 
-      public static final int TEXT_ANCHOR_FIELD_NUMBER = 1;
-      private com.google.cloud.documentai.v1beta2.Document.TextAnchor textAnchor_;
-      /**
-       *
-       *
-       * 
-       * Text anchor indexing into the [Document.text][google.cloud.documentai.v1beta2.Document.text].
-       * 

-       *
-       * .google.cloud.documentai.v1beta2.Document.TextAnchor text_anchor = 1;
-       *
-       * @return Whether the textAnchor field is set.
-       */
-      @java.lang.Override
-      public boolean hasTextAnchor() {
-        return textAnchor_ != null;
-      }
+      public static final int CONTENT_FIELD_NUMBER = 1;
+      private com.google.protobuf.ByteString content_ = com.google.protobuf.ByteString.EMPTY;
       /**
        *
        *
        * 
-       * Text anchor indexing into the [Document.text][google.cloud.documentai.v1beta2.Document.text].
+       * Raw byte content of the image.
        * 

        *
-       * .google.cloud.documentai.v1beta2.Document.TextAnchor text_anchor = 1;
-       *
-       * @return The textAnchor.
-       */
-      @java.lang.Override
-      public com.google.cloud.documentai.v1beta2.Document.TextAnchor getTextAnchor() {
-        return textAnchor_ == null
-            ? com.google.cloud.documentai.v1beta2.Document.TextAnchor.getDefaultInstance()
-            : textAnchor_;
-      }
-      /**
-       *
+       * bytes content = 1;
        *
-       * 
-       * Text anchor indexing into the [Document.text][google.cloud.documentai.v1beta2.Document.text].
-       * 

-       *
-       * .google.cloud.documentai.v1beta2.Document.TextAnchor text_anchor = 1;
+       * @return The content.
        */
       @java.lang.Override
-      public com.google.cloud.documentai.v1beta2.Document.TextAnchorOrBuilder
-          getTextAnchorOrBuilder() {
-        return textAnchor_ == null
-            ? com.google.cloud.documentai.v1beta2.Document.TextAnchor.getDefaultInstance()
-            : textAnchor_;
+      public com.google.protobuf.ByteString getContent() {
+        return content_;
       }
 
-      public static final int CONFIDENCE_FIELD_NUMBER = 2;
-      private float confidence_ = 0F;
-      /**
-       *
-       *
-       * 
-       * Confidence of the current [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] within context of the object this
-       * layout is for. e.g. confidence can be for a single token, a table,
-       * a visual element, etc. depending on context. Range [0, 1].
-       * 

-       *
-       * float confidence = 2;
-       *
-       * @return The confidence.
-       */
-      @java.lang.Override
-      public float getConfidence() {
-        return confidence_;
-      }
+      public static final int MIME_TYPE_FIELD_NUMBER = 2;
 
-      public static final int BOUNDING_POLY_FIELD_NUMBER = 3;
-      private com.google.cloud.documentai.v1beta2.BoundingPoly boundingPoly_;
+      @SuppressWarnings("serial")
+      private volatile java.lang.Object mimeType_ = "";
       /**
        *
        *
        * 
-       * The bounding polygon for the [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout].
+       * Encoding [media type (MIME
+       * type)](https://www.iana.org/assignments/media-types/media-types.xhtml)
+       * for the image.
        * 

        *
-       * .google.cloud.documentai.v1beta2.BoundingPoly bounding_poly = 3;
+       * string mime_type = 2;
        *
-       * @return Whether the boundingPoly field is set.
+       * @return The mimeType.
        */
       @java.lang.Override
-      public boolean hasBoundingPoly() {
-        return boundingPoly_ != null;
+      public java.lang.String getMimeType() {
+        java.lang.Object ref = mimeType_;
+        if (ref instanceof java.lang.String) {
+          return (java.lang.String) ref;
+        } else {
+          com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+          java.lang.String s = bs.toStringUtf8();
+          mimeType_ = s;
+          return s;
+        }
       }
       /**
        *
        *
        * 
-       * The bounding polygon for the [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout].
+       * Encoding [media type (MIME
+       * type)](https://www.iana.org/assignments/media-types/media-types.xhtml)
+       * for the image.
        * 

        *
-       * .google.cloud.documentai.v1beta2.BoundingPoly bounding_poly = 3;
-       *
-       * @return The boundingPoly.
-       */
-      @java.lang.Override
-      public com.google.cloud.documentai.v1beta2.BoundingPoly getBoundingPoly() {
-        return boundingPoly_ == null
-            ? com.google.cloud.documentai.v1beta2.BoundingPoly.getDefaultInstance()
-            : boundingPoly_;
-      }
-      /**
-       *
+       * string mime_type = 2;
        *
-       * 
-       * The bounding polygon for the [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout].
-       * 

-       *
-       * .google.cloud.documentai.v1beta2.BoundingPoly bounding_poly = 3;
+       * @return The bytes for mimeType.
        */
       @java.lang.Override
-      public com.google.cloud.documentai.v1beta2.BoundingPolyOrBuilder getBoundingPolyOrBuilder() {
-        return boundingPoly_ == null
-            ? com.google.cloud.documentai.v1beta2.BoundingPoly.getDefaultInstance()
-            : boundingPoly_;
+      public com.google.protobuf.ByteString getMimeTypeBytes() {
+        java.lang.Object ref = mimeType_;
+        if (ref instanceof java.lang.String) {
+          com.google.protobuf.ByteString b =
+              com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+          mimeType_ = b;
+          return b;
+        } else {
+          return (com.google.protobuf.ByteString) ref;
+        }
       }
 
-      public static final int ORIENTATION_FIELD_NUMBER = 4;
-      private int orientation_ = 0;
-      /**
-       *
-       *
-       * 
-       * Detected orientation for the [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout].
-       * 

-       *
-       * .google.cloud.documentai.v1beta2.Document.Page.Layout.Orientation orientation = 4;
-       * 
-       *
-       * @return The enum numeric value on the wire for orientation.
-       */
-      @java.lang.Override
-      public int getOrientationValue() {
-        return orientation_;
-      }
+      public static final int WIDTH_FIELD_NUMBER = 3;
+      private int width_ = 0;
       /**
        *
        *
        * 
-       * Detected orientation for the [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout].
+       * Width of the image in pixels.
        * 

        *
-       * .google.cloud.documentai.v1beta2.Document.Page.Layout.Orientation orientation = 4;
-       * 
+       * int32 width = 3;
        *
-       * @return The orientation.
+       * @return The width.
        */
       @java.lang.Override
-      public com.google.cloud.documentai.v1beta2.Document.Page.Layout.Orientation getOrientation() {
-        com.google.cloud.documentai.v1beta2.Document.Page.Layout.Orientation result =
-            com.google.cloud.documentai.v1beta2.Document.Page.Layout.Orientation.forNumber(
-                orientation_);
-        return result == null
-            ? com.google.cloud.documentai.v1beta2.Document.Page.Layout.Orientation.UNRECOGNIZED
-            : result;
+      public int getWidth() {
+        return width_;
       }
 
-      public static final int ID_FIELD_NUMBER = 5;
-
-      @SuppressWarnings("serial")
-      private volatile java.lang.Object id_ = "";
-      /**
-       *
-       *
-       * 
-       * Optional. This is the identifier used by referencing [PageAnchor][google.cloud.documentai.v1beta2.Document.PageAnchor]s.
-       * 

-       *
-       * string id = 5 [(.google.api.field_behavior) = OPTIONAL];
-       *
-       * @return The id.
-       */
-      @java.lang.Override
-      public java.lang.String getId() {
-        java.lang.Object ref = id_;
-        if (ref instanceof java.lang.String) {
-          return (java.lang.String) ref;
-        } else {
-          com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
-          java.lang.String s = bs.toStringUtf8();
-          id_ = s;
-          return s;
-        }
-      }
+      public static final int HEIGHT_FIELD_NUMBER = 4;
+      private int height_ = 0;
       /**
        *
        *
        * 
-       * Optional. This is the identifier used by referencing [PageAnchor][google.cloud.documentai.v1beta2.Document.PageAnchor]s.
+       * Height of the image in pixels.
        * 

        *
-       * string id = 5 [(.google.api.field_behavior) = OPTIONAL];
+       * int32 height = 4;
        *
-       * @return The bytes for id.
+       * @return The height.
        */
       @java.lang.Override
-      public com.google.protobuf.ByteString getIdBytes() {
-        java.lang.Object ref = id_;
-        if (ref instanceof java.lang.String) {
-          com.google.protobuf.ByteString b =
-              com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
-          id_ = b;
-          return b;
-        } else {
-          return (com.google.protobuf.ByteString) ref;
-        }
+      public int getHeight() {
+        return height_;
       }
 
       private byte memoizedIsInitialized = -1;
@@ -7169,23 +7363,17 @@ public final boolean isInitialized() {
 
       @java.lang.Override
       public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
-        if (textAnchor_ != null) {
-          output.writeMessage(1, getTextAnchor());
-        }
-        if (java.lang.Float.floatToRawIntBits(confidence_) != 0) {
-          output.writeFloat(2, confidence_);
+        if (!content_.isEmpty()) {
+          output.writeBytes(1, content_);
         }
-        if (boundingPoly_ != null) {
-          output.writeMessage(3, getBoundingPoly());
+        if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(mimeType_)) {
+          com.google.protobuf.GeneratedMessageV3.writeString(output, 2, mimeType_);
         }
-        if (orientation_
-            != com.google.cloud.documentai.v1beta2.Document.Page.Layout.Orientation
-                .ORIENTATION_UNSPECIFIED
-                .getNumber()) {
-          output.writeEnum(4, orientation_);
+        if (width_ != 0) {
+          output.writeInt32(3, width_);
         }
-        if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(id_)) {
-          com.google.protobuf.GeneratedMessageV3.writeString(output, 5, id_);
+        if (height_ != 0) {
+          output.writeInt32(4, height_);
         }
         getUnknownFields().writeTo(output);
       }
@@ -7196,23 +7384,17 @@ public int getSerializedSize() {
         if (size != -1) return size;
 
         size = 0;
-        if (textAnchor_ != null) {
-          size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, getTextAnchor());
-        }
-        if (java.lang.Float.floatToRawIntBits(confidence_) != 0) {
-          size += com.google.protobuf.CodedOutputStream.computeFloatSize(2, confidence_);
+        if (!content_.isEmpty()) {
+          size += com.google.protobuf.CodedOutputStream.computeBytesSize(1, content_);
         }
-        if (boundingPoly_ != null) {
-          size += com.google.protobuf.CodedOutputStream.computeMessageSize(3, getBoundingPoly());
+        if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(mimeType_)) {
+          size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, mimeType_);
         }
-        if (orientation_
-            != com.google.cloud.documentai.v1beta2.Document.Page.Layout.Orientation
-                .ORIENTATION_UNSPECIFIED
-                .getNumber()) {
-          size += com.google.protobuf.CodedOutputStream.computeEnumSize(4, orientation_);
+        if (width_ != 0) {
+          size += com.google.protobuf.CodedOutputStream.computeInt32Size(3, width_);
         }
-        if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(id_)) {
-          size += com.google.protobuf.GeneratedMessageV3.computeStringSize(5, id_);
+        if (height_ != 0) {
+          size += com.google.protobuf.CodedOutputStream.computeInt32Size(4, height_);
         }
         size += getUnknownFields().getSerializedSize();
         memoizedSize = size;
@@ -7224,24 +7406,16 @@ public boolean equals(final java.lang.Object obj) {
         if (obj == this) {
           return true;
         }
-        if (!(obj instanceof com.google.cloud.documentai.v1beta2.Document.Page.Layout)) {
+        if (!(obj instanceof com.google.cloud.documentai.v1beta2.Document.Page.Image)) {
           return super.equals(obj);
         }
-        com.google.cloud.documentai.v1beta2.Document.Page.Layout other =
-            (com.google.cloud.documentai.v1beta2.Document.Page.Layout) obj;
+        com.google.cloud.documentai.v1beta2.Document.Page.Image other =
+            (com.google.cloud.documentai.v1beta2.Document.Page.Image) obj;
 
-        if (hasTextAnchor() != other.hasTextAnchor()) return false;
-        if (hasTextAnchor()) {
-          if (!getTextAnchor().equals(other.getTextAnchor())) return false;
-        }
-        if (java.lang.Float.floatToIntBits(getConfidence())
-            != java.lang.Float.floatToIntBits(other.getConfidence())) return false;
-        if (hasBoundingPoly() != other.hasBoundingPoly()) return false;
-        if (hasBoundingPoly()) {
-          if (!getBoundingPoly().equals(other.getBoundingPoly())) return false;
-        }
-        if (orientation_ != other.orientation_) return false;
-        if (!getId().equals(other.getId())) return false;
+        if (!getContent().equals(other.getContent())) return false;
+        if (!getMimeType().equals(other.getMimeType())) return false;
+        if (getWidth() != other.getWidth()) return false;
+        if (getHeight() != other.getHeight()) return false;
         if (!getUnknownFields().equals(other.getUnknownFields())) return false;
         return true;
       }
@@ -7253,90 +7427,84 @@ public int hashCode() {
         }
         int hash = 41;
         hash = (19 * hash) + getDescriptor().hashCode();
-        if (hasTextAnchor()) {
-          hash = (37 * hash) + TEXT_ANCHOR_FIELD_NUMBER;
-          hash = (53 * hash) + getTextAnchor().hashCode();
-        }
-        hash = (37 * hash) + CONFIDENCE_FIELD_NUMBER;
-        hash = (53 * hash) + java.lang.Float.floatToIntBits(getConfidence());
-        if (hasBoundingPoly()) {
-          hash = (37 * hash) + BOUNDING_POLY_FIELD_NUMBER;
-          hash = (53 * hash) + getBoundingPoly().hashCode();
-        }
-        hash = (37 * hash) + ORIENTATION_FIELD_NUMBER;
-        hash = (53 * hash) + orientation_;
-        hash = (37 * hash) + ID_FIELD_NUMBER;
-        hash = (53 * hash) + getId().hashCode();
+        hash = (37 * hash) + CONTENT_FIELD_NUMBER;
+        hash = (53 * hash) + getContent().hashCode();
+        hash = (37 * hash) + MIME_TYPE_FIELD_NUMBER;
+        hash = (53 * hash) + getMimeType().hashCode();
+        hash = (37 * hash) + WIDTH_FIELD_NUMBER;
+        hash = (53 * hash) + getWidth();
+        hash = (37 * hash) + HEIGHT_FIELD_NUMBER;
+        hash = (53 * hash) + getHeight();
         hash = (29 * hash) + getUnknownFields().hashCode();
         memoizedHashCode = hash;
         return hash;
       }
 
-      public static com.google.cloud.documentai.v1beta2.Document.Page.Layout parseFrom(
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Image parseFrom(
           java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
         return PARSER.parseFrom(data);
       }
 
-      public static com.google.cloud.documentai.v1beta2.Document.Page.Layout parseFrom(
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Image parseFrom(
           java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws com.google.protobuf.InvalidProtocolBufferException {
         return PARSER.parseFrom(data, extensionRegistry);
       }
 
-      public static com.google.cloud.documentai.v1beta2.Document.Page.Layout parseFrom(
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Image parseFrom(
           com.google.protobuf.ByteString data)
           throws com.google.protobuf.InvalidProtocolBufferException {
         return PARSER.parseFrom(data);
       }
 
-      public static com.google.cloud.documentai.v1beta2.Document.Page.Layout parseFrom(
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Image parseFrom(
           com.google.protobuf.ByteString data,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws com.google.protobuf.InvalidProtocolBufferException {
         return PARSER.parseFrom(data, extensionRegistry);
       }
 
-      public static com.google.cloud.documentai.v1beta2.Document.Page.Layout parseFrom(byte[] data)
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Image parseFrom(byte[] data)
           throws com.google.protobuf.InvalidProtocolBufferException {
         return PARSER.parseFrom(data);
       }
 
-      public static com.google.cloud.documentai.v1beta2.Document.Page.Layout parseFrom(
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Image parseFrom(
           byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws com.google.protobuf.InvalidProtocolBufferException {
         return PARSER.parseFrom(data, extensionRegistry);
       }
 
-      public static com.google.cloud.documentai.v1beta2.Document.Page.Layout parseFrom(
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Image parseFrom(
           java.io.InputStream input) throws java.io.IOException {
         return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
       }
 
-      public static com.google.cloud.documentai.v1beta2.Document.Page.Layout parseFrom(
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Image parseFrom(
           java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws java.io.IOException {
         return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
             PARSER, input, extensionRegistry);
       }
 
-      public static com.google.cloud.documentai.v1beta2.Document.Page.Layout parseDelimitedFrom(
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Image parseDelimitedFrom(
           java.io.InputStream input) throws java.io.IOException {
         return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
       }
 
-      public static com.google.cloud.documentai.v1beta2.Document.Page.Layout parseDelimitedFrom(
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Image parseDelimitedFrom(
           java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws java.io.IOException {
         return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
             PARSER, input, extensionRegistry);
       }
 
-      public static com.google.cloud.documentai.v1beta2.Document.Page.Layout parseFrom(
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Image parseFrom(
           com.google.protobuf.CodedInputStream input) throws java.io.IOException {
         return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
       }
 
-      public static com.google.cloud.documentai.v1beta2.Document.Page.Layout parseFrom(
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Image parseFrom(
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws java.io.IOException {
@@ -7354,7 +7522,7 @@ public static Builder newBuilder() {
       }
 
       public static Builder newBuilder(
-          com.google.cloud.documentai.v1beta2.Document.Page.Layout prototype) {
+          com.google.cloud.documentai.v1beta2.Document.Page.Image prototype) {
         return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
       }
 
@@ -7373,32 +7541,32 @@ protected Builder newBuilderForType(
        *
        *
        * 
-       * Visual element describing a layout unit on a page.
+       * Rendered image contents for this page.
        * 

        *
-       * Protobuf type {@code google.cloud.documentai.v1beta2.Document.Page.Layout}
+       * Protobuf type {@code google.cloud.documentai.v1beta2.Document.Page.Image}
        */
       public static final class Builder
           extends com.google.protobuf.GeneratedMessageV3.Builder
           implements
-          // @@protoc_insertion_point(builder_implements:google.cloud.documentai.v1beta2.Document.Page.Layout)
-          com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder {
+          // @@protoc_insertion_point(builder_implements:google.cloud.documentai.v1beta2.Document.Page.Image)
+          com.google.cloud.documentai.v1beta2.Document.Page.ImageOrBuilder {
         public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
           return com.google.cloud.documentai.v1beta2.DocumentProto
-              .internal_static_google_cloud_documentai_v1beta2_Document_Page_Layout_descriptor;
+              .internal_static_google_cloud_documentai_v1beta2_Document_Page_Image_descriptor;
         }
 
         @java.lang.Override
         protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
             internalGetFieldAccessorTable() {
           return com.google.cloud.documentai.v1beta2.DocumentProto
-              .internal_static_google_cloud_documentai_v1beta2_Document_Page_Layout_fieldAccessorTable
+              .internal_static_google_cloud_documentai_v1beta2_Document_Page_Image_fieldAccessorTable
               .ensureFieldAccessorsInitialized(
-                  com.google.cloud.documentai.v1beta2.Document.Page.Layout.class,
-                  com.google.cloud.documentai.v1beta2.Document.Page.Layout.Builder.class);
+                  com.google.cloud.documentai.v1beta2.Document.Page.Image.class,
+                  com.google.cloud.documentai.v1beta2.Document.Page.Image.Builder.class);
         }
 
-        // Construct using com.google.cloud.documentai.v1beta2.Document.Page.Layout.newBuilder()
+        // Construct using com.google.cloud.documentai.v1beta2.Document.Page.Image.newBuilder()
         private Builder() {}
 
         private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
@@ -7409,37 +7577,27 @@ private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
         public Builder clear() {
           super.clear();
           bitField0_ = 0;
-          textAnchor_ = null;
-          if (textAnchorBuilder_ != null) {
-            textAnchorBuilder_.dispose();
-            textAnchorBuilder_ = null;
-          }
-          confidence_ = 0F;
-          boundingPoly_ = null;
-          if (boundingPolyBuilder_ != null) {
-            boundingPolyBuilder_.dispose();
-            boundingPolyBuilder_ = null;
-          }
-          orientation_ = 0;
-          id_ = "";
+          content_ = com.google.protobuf.ByteString.EMPTY;
+          mimeType_ = "";
+          width_ = 0;
+          height_ = 0;
           return this;
         }
 
         @java.lang.Override
         public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
           return com.google.cloud.documentai.v1beta2.DocumentProto
-              .internal_static_google_cloud_documentai_v1beta2_Document_Page_Layout_descriptor;
+              .internal_static_google_cloud_documentai_v1beta2_Document_Page_Image_descriptor;
         }
 
         @java.lang.Override
-        public com.google.cloud.documentai.v1beta2.Document.Page.Layout
-            getDefaultInstanceForType() {
-          return com.google.cloud.documentai.v1beta2.Document.Page.Layout.getDefaultInstance();
+        public com.google.cloud.documentai.v1beta2.Document.Page.Image getDefaultInstanceForType() {
+          return com.google.cloud.documentai.v1beta2.Document.Page.Image.getDefaultInstance();
         }
 
         @java.lang.Override
-        public com.google.cloud.documentai.v1beta2.Document.Page.Layout build() {
-          com.google.cloud.documentai.v1beta2.Document.Page.Layout result = buildPartial();
+        public com.google.cloud.documentai.v1beta2.Document.Page.Image build() {
+          com.google.cloud.documentai.v1beta2.Document.Page.Image result = buildPartial();
           if (!result.isInitialized()) {
             throw newUninitializedMessageException(result);
           }
@@ -7447,9 +7605,9 @@ public com.google.cloud.documentai.v1beta2.Document.Page.Layout build() {
         }
 
         @java.lang.Override
-        public com.google.cloud.documentai.v1beta2.Document.Page.Layout buildPartial() {
-          com.google.cloud.documentai.v1beta2.Document.Page.Layout result =
-              new com.google.cloud.documentai.v1beta2.Document.Page.Layout(this);
+        public com.google.cloud.documentai.v1beta2.Document.Page.Image buildPartial() {
+          com.google.cloud.documentai.v1beta2.Document.Page.Image result =
+              new com.google.cloud.documentai.v1beta2.Document.Page.Image(this);
           if (bitField0_ != 0) {
             buildPartial0(result);
           }
@@ -7457,25 +7615,19 @@ public com.google.cloud.documentai.v1beta2.Document.Page.Layout buildPartial() {
           return result;
         }
 
-        private void buildPartial0(
-            com.google.cloud.documentai.v1beta2.Document.Page.Layout result) {
+        private void buildPartial0(com.google.cloud.documentai.v1beta2.Document.Page.Image result) {
           int from_bitField0_ = bitField0_;
           if (((from_bitField0_ & 0x00000001) != 0)) {
-            result.textAnchor_ =
-                textAnchorBuilder_ == null ? textAnchor_ : textAnchorBuilder_.build();
+            result.content_ = content_;
           }
           if (((from_bitField0_ & 0x00000002) != 0)) {
-            result.confidence_ = confidence_;
+            result.mimeType_ = mimeType_;
           }
           if (((from_bitField0_ & 0x00000004) != 0)) {
-            result.boundingPoly_ =
-                boundingPolyBuilder_ == null ? boundingPoly_ : boundingPolyBuilder_.build();
+            result.width_ = width_;
           }
           if (((from_bitField0_ & 0x00000008) != 0)) {
-            result.orientation_ = orientation_;
-          }
-          if (((from_bitField0_ & 0x00000010) != 0)) {
-            result.id_ = id_;
+            result.height_ = height_;
           }
         }
 
@@ -7516,34 +7668,30 @@ public Builder addRepeatedField(
 
         @java.lang.Override
         public Builder mergeFrom(com.google.protobuf.Message other) {
-          if (other instanceof com.google.cloud.documentai.v1beta2.Document.Page.Layout) {
-            return mergeFrom((com.google.cloud.documentai.v1beta2.Document.Page.Layout) other);
+          if (other instanceof com.google.cloud.documentai.v1beta2.Document.Page.Image) {
+            return mergeFrom((com.google.cloud.documentai.v1beta2.Document.Page.Image) other);
           } else {
             super.mergeFrom(other);
             return this;
           }
         }
 
-        public Builder mergeFrom(com.google.cloud.documentai.v1beta2.Document.Page.Layout other) {
-          if (other
-              == com.google.cloud.documentai.v1beta2.Document.Page.Layout.getDefaultInstance())
+        public Builder mergeFrom(com.google.cloud.documentai.v1beta2.Document.Page.Image other) {
+          if (other == com.google.cloud.documentai.v1beta2.Document.Page.Image.getDefaultInstance())
             return this;
-          if (other.hasTextAnchor()) {
-            mergeTextAnchor(other.getTextAnchor());
-          }
-          if (other.getConfidence() != 0F) {
-            setConfidence(other.getConfidence());
+          if (other.getContent() != com.google.protobuf.ByteString.EMPTY) {
+            setContent(other.getContent());
           }
-          if (other.hasBoundingPoly()) {
-            mergeBoundingPoly(other.getBoundingPoly());
+          if (!other.getMimeType().isEmpty()) {
+            mimeType_ = other.mimeType_;
+            bitField0_ |= 0x00000002;
+            onChanged();
           }
-          if (other.orientation_ != 0) {
-            setOrientationValue(other.getOrientationValue());
+          if (other.getWidth() != 0) {
+            setWidth(other.getWidth());
           }
-          if (!other.getId().isEmpty()) {
-            id_ = other.id_;
-            bitField0_ |= 0x00000010;
-            onChanged();
+          if (other.getHeight() != 0) {
+            setHeight(other.getHeight());
           }
           this.mergeUnknownFields(other.getUnknownFields());
           onChanged();
@@ -7573,35 +7721,28 @@ public Builder mergeFrom(
                   break;
                 case 10:
                   {
-                    input.readMessage(getTextAnchorFieldBuilder().getBuilder(), extensionRegistry);
+                    content_ = input.readBytes();
                     bitField0_ |= 0x00000001;
                     break;
                   } // case 10
-                case 21:
+                case 18:
                   {
-                    confidence_ = input.readFloat();
+                    mimeType_ = input.readStringRequireUtf8();
                     bitField0_ |= 0x00000002;
                     break;
-                  } // case 21
-                case 26:
+                  } // case 18
+                case 24:
                   {
-                    input.readMessage(
-                        getBoundingPolyFieldBuilder().getBuilder(), extensionRegistry);
+                    width_ = input.readInt32();
                     bitField0_ |= 0x00000004;
                     break;
-                  } // case 26
+                  } // case 24
                 case 32:
                   {
-                    orientation_ = input.readEnum();
+                    height_ = input.readInt32();
                     bitField0_ |= 0x00000008;
                     break;
                   } // case 32
-                case 42:
-                  {
-                    id_ = input.readStringRequireUtf8();
-                    bitField0_ |= 0x00000010;
-                    break;
-                  } // case 42
                 default:
                   {
                     if (!super.parseUnknownField(input, extensionRegistry, tag)) {
@@ -7621,85 +7762,39 @@ public Builder mergeFrom(
 
         private int bitField0_;
 
-        private com.google.cloud.documentai.v1beta2.Document.TextAnchor textAnchor_;
-        private com.google.protobuf.SingleFieldBuilderV3<
-                com.google.cloud.documentai.v1beta2.Document.TextAnchor,
-                com.google.cloud.documentai.v1beta2.Document.TextAnchor.Builder,
-                com.google.cloud.documentai.v1beta2.Document.TextAnchorOrBuilder>
-            textAnchorBuilder_;
-        /**
-         *
-         *
-         * 
-         * Text anchor indexing into the [Document.text][google.cloud.documentai.v1beta2.Document.text].
-         * 

-         *
-         * .google.cloud.documentai.v1beta2.Document.TextAnchor text_anchor = 1;
-         *
-         * @return Whether the textAnchor field is set.
-         */
-        public boolean hasTextAnchor() {
-          return ((bitField0_ & 0x00000001) != 0);
-        }
+        private com.google.protobuf.ByteString content_ = com.google.protobuf.ByteString.EMPTY;
         /**
          *
          *
          * 
-         * Text anchor indexing into the [Document.text][google.cloud.documentai.v1beta2.Document.text].
+         * Raw byte content of the image.
          * 

          *
-         * .google.cloud.documentai.v1beta2.Document.TextAnchor text_anchor = 1;
+         * bytes content = 1;
          *
-         * @return The textAnchor.
+         * @return The content.
          */
-        public com.google.cloud.documentai.v1beta2.Document.TextAnchor getTextAnchor() {
-          if (textAnchorBuilder_ == null) {
-            return textAnchor_ == null
-                ? com.google.cloud.documentai.v1beta2.Document.TextAnchor.getDefaultInstance()
-                : textAnchor_;
-          } else {
-            return textAnchorBuilder_.getMessage();
-          }
+        @java.lang.Override
+        public com.google.protobuf.ByteString getContent() {
+          return content_;
         }
         /**
          *
          *
          * 
-         * Text anchor indexing into the [Document.text][google.cloud.documentai.v1beta2.Document.text].
+         * Raw byte content of the image.
          * 

          *
-         * .google.cloud.documentai.v1beta2.Document.TextAnchor text_anchor = 1;
-         */
-        public Builder setTextAnchor(
-            com.google.cloud.documentai.v1beta2.Document.TextAnchor value) {
-          if (textAnchorBuilder_ == null) {
-            if (value == null) {
-              throw new NullPointerException();
-            }
-            textAnchor_ = value;
-          } else {
-            textAnchorBuilder_.setMessage(value);
-          }
-          bitField0_ |= 0x00000001;
-          onChanged();
-          return this;
-        }
-        /**
-         *
-         *
-         * 
-         * Text anchor indexing into the [Document.text][google.cloud.documentai.v1beta2.Document.text].
-         * 

+         * bytes content = 1;
          *
-         * .google.cloud.documentai.v1beta2.Document.TextAnchor text_anchor = 1;
+         * @param value The content to set.
+         * @return This builder for chaining.
          */
-        public Builder setTextAnchor(
-            com.google.cloud.documentai.v1beta2.Document.TextAnchor.Builder builderForValue) {
-          if (textAnchorBuilder_ == null) {
-            textAnchor_ = builderForValue.build();
-          } else {
-            textAnchorBuilder_.setMessage(builderForValue.build());
+        public Builder setContent(com.google.protobuf.ByteString value) {
+          if (value == null) {
+            throw new NullPointerException();
           }
+          content_ = value;
           bitField0_ |= 0x00000001;
           onChanged();
           return this;
@@ -7708,144 +7803,88 @@ public Builder setTextAnchor(
          *
          *
          * 
-         * Text anchor indexing into the [Document.text][google.cloud.documentai.v1beta2.Document.text].
+         * Raw byte content of the image.
          * 

          *
-         * .google.cloud.documentai.v1beta2.Document.TextAnchor text_anchor = 1;
-         */
-        public Builder mergeTextAnchor(
-            com.google.cloud.documentai.v1beta2.Document.TextAnchor value) {
-          if (textAnchorBuilder_ == null) {
-            if (((bitField0_ & 0x00000001) != 0)
-                && textAnchor_ != null
-                && textAnchor_
-                    != com.google.cloud.documentai.v1beta2.Document.TextAnchor
-                        .getDefaultInstance()) {
-              getTextAnchorBuilder().mergeFrom(value);
-            } else {
-              textAnchor_ = value;
-            }
-          } else {
-            textAnchorBuilder_.mergeFrom(value);
-          }
-          bitField0_ |= 0x00000001;
-          onChanged();
-          return this;
-        }
-        /**
-         *
-         *
-         * 
-         * Text anchor indexing into the [Document.text][google.cloud.documentai.v1beta2.Document.text].
-         * 

+         * bytes content = 1;
          *
-         * .google.cloud.documentai.v1beta2.Document.TextAnchor text_anchor = 1;
+         * @return This builder for chaining.
          */
-        public Builder clearTextAnchor() {
+        public Builder clearContent() {
           bitField0_ = (bitField0_ & ~0x00000001);
-          textAnchor_ = null;
-          if (textAnchorBuilder_ != null) {
-            textAnchorBuilder_.dispose();
-            textAnchorBuilder_ = null;
-          }
+          content_ = getDefaultInstance().getContent();
           onChanged();
           return this;
         }
+
+        private java.lang.Object mimeType_ = "";
         /**
          *
          *
          * 
-         * Text anchor indexing into the [Document.text][google.cloud.documentai.v1beta2.Document.text].
+         * Encoding [media type (MIME
+         * type)](https://www.iana.org/assignments/media-types/media-types.xhtml)
+         * for the image.
          * 

          *
-         * .google.cloud.documentai.v1beta2.Document.TextAnchor text_anchor = 1;
-         */
-        public com.google.cloud.documentai.v1beta2.Document.TextAnchor.Builder
-            getTextAnchorBuilder() {
-          bitField0_ |= 0x00000001;
-          onChanged();
-          return getTextAnchorFieldBuilder().getBuilder();
-        }
-        /**
-         *
-         *
-         * 
-         * Text anchor indexing into the [Document.text][google.cloud.documentai.v1beta2.Document.text].
-         * 

+         * string mime_type = 2;
          *
-         * .google.cloud.documentai.v1beta2.Document.TextAnchor text_anchor = 1;
+         * @return The mimeType.
          */
-        public com.google.cloud.documentai.v1beta2.Document.TextAnchorOrBuilder
-            getTextAnchorOrBuilder() {
-          if (textAnchorBuilder_ != null) {
-            return textAnchorBuilder_.getMessageOrBuilder();
+        public java.lang.String getMimeType() {
+          java.lang.Object ref = mimeType_;
+          if (!(ref instanceof java.lang.String)) {
+            com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+            java.lang.String s = bs.toStringUtf8();
+            mimeType_ = s;
+            return s;
           } else {
-            return textAnchor_ == null
-                ? com.google.cloud.documentai.v1beta2.Document.TextAnchor.getDefaultInstance()
-                : textAnchor_;
-          }
-        }
-        /**
-         *
-         *
-         * 
-         * Text anchor indexing into the [Document.text][google.cloud.documentai.v1beta2.Document.text].
-         * 

-         *
-         * .google.cloud.documentai.v1beta2.Document.TextAnchor text_anchor = 1;
-         */
-        private com.google.protobuf.SingleFieldBuilderV3<
-                com.google.cloud.documentai.v1beta2.Document.TextAnchor,
-                com.google.cloud.documentai.v1beta2.Document.TextAnchor.Builder,
-                com.google.cloud.documentai.v1beta2.Document.TextAnchorOrBuilder>
-            getTextAnchorFieldBuilder() {
-          if (textAnchorBuilder_ == null) {
-            textAnchorBuilder_ =
-                new com.google.protobuf.SingleFieldBuilderV3<
-                    com.google.cloud.documentai.v1beta2.Document.TextAnchor,
-                    com.google.cloud.documentai.v1beta2.Document.TextAnchor.Builder,
-                    com.google.cloud.documentai.v1beta2.Document.TextAnchorOrBuilder>(
-                    getTextAnchor(), getParentForChildren(), isClean());
-            textAnchor_ = null;
+            return (java.lang.String) ref;
           }
-          return textAnchorBuilder_;
         }
-
-        private float confidence_;
         /**
          *
          *
          * 
-         * Confidence of the current [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] within context of the object this
-         * layout is for. e.g. confidence can be for a single token, a table,
-         * a visual element, etc. depending on context. Range [0, 1].
+         * Encoding [media type (MIME
+         * type)](https://www.iana.org/assignments/media-types/media-types.xhtml)
+         * for the image.
          * 

          *
-         * float confidence = 2;
+         * string mime_type = 2;
          *
-         * @return The confidence.
+         * @return The bytes for mimeType.
          */
-        @java.lang.Override
-        public float getConfidence() {
-          return confidence_;
+        public com.google.protobuf.ByteString getMimeTypeBytes() {
+          java.lang.Object ref = mimeType_;
+          if (ref instanceof String) {
+            com.google.protobuf.ByteString b =
+                com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+            mimeType_ = b;
+            return b;
+          } else {
+            return (com.google.protobuf.ByteString) ref;
+          }
         }
         /**
          *
          *
          * 
-         * Confidence of the current [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] within context of the object this
-         * layout is for. e.g. confidence can be for a single token, a table,
-         * a visual element, etc. depending on context. Range [0, 1].
+         * Encoding [media type (MIME
+         * type)](https://www.iana.org/assignments/media-types/media-types.xhtml)
+         * for the image.
          * 

          *
-         * float confidence = 2;
+         * string mime_type = 2;
          *
-         * @param value The confidence to set.
+         * @param value The mimeType to set.
          * @return This builder for chaining.
          */
-        public Builder setConfidence(float value) {
-
-          confidence_ = value;
+        public Builder setMimeType(java.lang.String value) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          mimeType_ = value;
           bitField0_ |= 0x00000002;
           onChanged();
           return this;
@@ -7854,286 +7893,131 @@ public Builder setConfidence(float value) {
          *
          *
          * 
-         * Confidence of the current [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] within context of the object this
-         * layout is for. e.g. confidence can be for a single token, a table,
-         * a visual element, etc. depending on context. Range [0, 1].
+         * Encoding [media type (MIME
+         * type)](https://www.iana.org/assignments/media-types/media-types.xhtml)
+         * for the image.
          * 

          *
-         * float confidence = 2;
+         * string mime_type = 2;
          *
          * @return This builder for chaining.
          */
-        public Builder clearConfidence() {
+        public Builder clearMimeType() {
+          mimeType_ = getDefaultInstance().getMimeType();
           bitField0_ = (bitField0_ & ~0x00000002);
-          confidence_ = 0F;
           onChanged();
           return this;
         }
-
-        private com.google.cloud.documentai.v1beta2.BoundingPoly boundingPoly_;
-        private com.google.protobuf.SingleFieldBuilderV3<
-                com.google.cloud.documentai.v1beta2.BoundingPoly,
-                com.google.cloud.documentai.v1beta2.BoundingPoly.Builder,
-                com.google.cloud.documentai.v1beta2.BoundingPolyOrBuilder>
-            boundingPolyBuilder_;
-        /**
-         *
-         *
-         * 
-         * The bounding polygon for the [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout].
-         * 

-         *
-         * .google.cloud.documentai.v1beta2.BoundingPoly bounding_poly = 3;
-         *
-         * @return Whether the boundingPoly field is set.
-         */
-        public boolean hasBoundingPoly() {
-          return ((bitField0_ & 0x00000004) != 0);
-        }
         /**
          *
          *
          * 
-         * The bounding polygon for the [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout].
+         * Encoding [media type (MIME
+         * type)](https://www.iana.org/assignments/media-types/media-types.xhtml)
+         * for the image.
          * 

          *
-         * .google.cloud.documentai.v1beta2.BoundingPoly bounding_poly = 3;
-         *
-         * @return The boundingPoly.
-         */
-        public com.google.cloud.documentai.v1beta2.BoundingPoly getBoundingPoly() {
-          if (boundingPolyBuilder_ == null) {
-            return boundingPoly_ == null
-                ? com.google.cloud.documentai.v1beta2.BoundingPoly.getDefaultInstance()
-                : boundingPoly_;
-          } else {
-            return boundingPolyBuilder_.getMessage();
-          }
-        }
-        /**
-         *
-         *
-         * 
-         * The bounding polygon for the [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout].
-         * 

+         * string mime_type = 2;
          *
-         * .google.cloud.documentai.v1beta2.BoundingPoly bounding_poly = 3;
+         * @param value The bytes for mimeType to set.
+         * @return This builder for chaining.
          */
-        public Builder setBoundingPoly(com.google.cloud.documentai.v1beta2.BoundingPoly value) {
-          if (boundingPolyBuilder_ == null) {
-            if (value == null) {
-              throw new NullPointerException();
-            }
-            boundingPoly_ = value;
-          } else {
-            boundingPolyBuilder_.setMessage(value);
+        public Builder setMimeTypeBytes(com.google.protobuf.ByteString value) {
+          if (value == null) {
+            throw new NullPointerException();
           }
-          bitField0_ |= 0x00000004;
+          checkByteStringIsUtf8(value);
+          mimeType_ = value;
+          bitField0_ |= 0x00000002;
           onChanged();
           return this;
         }
+
+        private int width_;
         /**
          *
          *
          * 
-         * The bounding polygon for the [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout].
+         * Width of the image in pixels.
          * 

          *
-         * .google.cloud.documentai.v1beta2.BoundingPoly bounding_poly = 3;
-         */
-        public Builder setBoundingPoly(
-            com.google.cloud.documentai.v1beta2.BoundingPoly.Builder builderForValue) {
-          if (boundingPolyBuilder_ == null) {
-            boundingPoly_ = builderForValue.build();
-          } else {
-            boundingPolyBuilder_.setMessage(builderForValue.build());
-          }
-          bitField0_ |= 0x00000004;
-          onChanged();
-          return this;
-        }
-        /**
-         *
-         *
-         * 
-         * The bounding polygon for the [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout].
-         * 

+         * int32 width = 3;
          *
-         * .google.cloud.documentai.v1beta2.BoundingPoly bounding_poly = 3;
+         * @return The width.
          */
-        public Builder mergeBoundingPoly(com.google.cloud.documentai.v1beta2.BoundingPoly value) {
-          if (boundingPolyBuilder_ == null) {
-            if (((bitField0_ & 0x00000004) != 0)
-                && boundingPoly_ != null
-                && boundingPoly_
-                    != com.google.cloud.documentai.v1beta2.BoundingPoly.getDefaultInstance()) {
-              getBoundingPolyBuilder().mergeFrom(value);
-            } else {
-              boundingPoly_ = value;
-            }
-          } else {
-            boundingPolyBuilder_.mergeFrom(value);
-          }
-          bitField0_ |= 0x00000004;
-          onChanged();
-          return this;
+        @java.lang.Override
+        public int getWidth() {
+          return width_;
         }
         /**
          *
          *
          * 
-         * The bounding polygon for the [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout].
+         * Width of the image in pixels.
          * 

          *
-         * .google.cloud.documentai.v1beta2.BoundingPoly bounding_poly = 3;
-         */
-        public Builder clearBoundingPoly() {
-          bitField0_ = (bitField0_ & ~0x00000004);
-          boundingPoly_ = null;
-          if (boundingPolyBuilder_ != null) {
-            boundingPolyBuilder_.dispose();
-            boundingPolyBuilder_ = null;
-          }
-          onChanged();
-          return this;
-        }
-        /**
-         *
-         *
-         * 
-         * The bounding polygon for the [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout].
-         * 

+         * int32 width = 3;
          *
-         * .google.cloud.documentai.v1beta2.BoundingPoly bounding_poly = 3;
+         * @param value The width to set.
+         * @return This builder for chaining.
          */
-        public com.google.cloud.documentai.v1beta2.BoundingPoly.Builder getBoundingPolyBuilder() {
+        public Builder setWidth(int value) {
+
+          width_ = value;
           bitField0_ |= 0x00000004;
           onChanged();
-          return getBoundingPolyFieldBuilder().getBuilder();
-        }
-        /**
-         *
-         *
-         * 
-         * The bounding polygon for the [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout].
-         * 

-         *
-         * .google.cloud.documentai.v1beta2.BoundingPoly bounding_poly = 3;
-         */
-        public com.google.cloud.documentai.v1beta2.BoundingPolyOrBuilder
-            getBoundingPolyOrBuilder() {
-          if (boundingPolyBuilder_ != null) {
-            return boundingPolyBuilder_.getMessageOrBuilder();
-          } else {
-            return boundingPoly_ == null
-                ? com.google.cloud.documentai.v1beta2.BoundingPoly.getDefaultInstance()
-                : boundingPoly_;
-          }
-        }
-        /**
-         *
-         *
-         * 
-         * The bounding polygon for the [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout].
-         * 

-         *
-         * .google.cloud.documentai.v1beta2.BoundingPoly bounding_poly = 3;
-         */
-        private com.google.protobuf.SingleFieldBuilderV3<
-                com.google.cloud.documentai.v1beta2.BoundingPoly,
-                com.google.cloud.documentai.v1beta2.BoundingPoly.Builder,
-                com.google.cloud.documentai.v1beta2.BoundingPolyOrBuilder>
-            getBoundingPolyFieldBuilder() {
-          if (boundingPolyBuilder_ == null) {
-            boundingPolyBuilder_ =
-                new com.google.protobuf.SingleFieldBuilderV3<
-                    com.google.cloud.documentai.v1beta2.BoundingPoly,
-                    com.google.cloud.documentai.v1beta2.BoundingPoly.Builder,
-                    com.google.cloud.documentai.v1beta2.BoundingPolyOrBuilder>(
-                    getBoundingPoly(), getParentForChildren(), isClean());
-            boundingPoly_ = null;
-          }
-          return boundingPolyBuilder_;
-        }
-
-        private int orientation_ = 0;
-        /**
-         *
-         *
-         * 
-         * Detected orientation for the [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout].
-         * 

-         *
-         * .google.cloud.documentai.v1beta2.Document.Page.Layout.Orientation orientation = 4;
-         * 
-         *
-         * @return The enum numeric value on the wire for orientation.
-         */
-        @java.lang.Override
-        public int getOrientationValue() {
-          return orientation_;
+          return this;
         }
         /**
          *
          *
          * 
-         * Detected orientation for the [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout].
+         * Width of the image in pixels.
          * 

          *
-         * .google.cloud.documentai.v1beta2.Document.Page.Layout.Orientation orientation = 4;
-         * 
+         * int32 width = 3;
          *
-         * @param value The enum numeric value on the wire for orientation to set.
          * @return This builder for chaining.
          */
-        public Builder setOrientationValue(int value) {
-          orientation_ = value;
-          bitField0_ |= 0x00000008;
+        public Builder clearWidth() {
+          bitField0_ = (bitField0_ & ~0x00000004);
+          width_ = 0;
           onChanged();
           return this;
         }
+
+        private int height_;
         /**
          *
          *
          * 
-         * Detected orientation for the [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout].
+         * Height of the image in pixels.
          * 

          *
-         * .google.cloud.documentai.v1beta2.Document.Page.Layout.Orientation orientation = 4;
-         * 
+         * int32 height = 4;
          *
-         * @return The orientation.
+         * @return The height.
          */
         @java.lang.Override
-        public com.google.cloud.documentai.v1beta2.Document.Page.Layout.Orientation
-            getOrientation() {
-          com.google.cloud.documentai.v1beta2.Document.Page.Layout.Orientation result =
-              com.google.cloud.documentai.v1beta2.Document.Page.Layout.Orientation.forNumber(
-                  orientation_);
-          return result == null
-              ? com.google.cloud.documentai.v1beta2.Document.Page.Layout.Orientation.UNRECOGNIZED
-              : result;
+        public int getHeight() {
+          return height_;
         }
         /**
          *
          *
          * 
-         * Detected orientation for the [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout].
+         * Height of the image in pixels.
          * 

          *
-         * .google.cloud.documentai.v1beta2.Document.Page.Layout.Orientation orientation = 4;
-         * 
+         * int32 height = 4;
          *
-         * @param value The orientation to set.
+         * @param value The height to set.
          * @return This builder for chaining.
          */
-        public Builder setOrientation(
-            com.google.cloud.documentai.v1beta2.Document.Page.Layout.Orientation value) {
-          if (value == null) {
-            throw new NullPointerException();
-          }
+        public Builder setHeight(int value) {
+
+          height_ = value;
           bitField0_ |= 0x00000008;
-          orientation_ = value.getNumber();
           onChanged();
           return this;
         }
@@ -8141,131 +8025,24 @@ public Builder setOrientation(
          *
          *
          * 
-         * Detected orientation for the [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout].
+         * Height of the image in pixels.
          * 

          *
-         * .google.cloud.documentai.v1beta2.Document.Page.Layout.Orientation orientation = 4;
-         * 
+         * int32 height = 4;
          *
          * @return This builder for chaining.
          */
-        public Builder clearOrientation() {
+        public Builder clearHeight() {
           bitField0_ = (bitField0_ & ~0x00000008);
-          orientation_ = 0;
+          height_ = 0;
           onChanged();
           return this;
         }
 
-        private java.lang.Object id_ = "";
-        /**
-         *
-         *
-         * 
-         * Optional. This is the identifier used by referencing [PageAnchor][google.cloud.documentai.v1beta2.Document.PageAnchor]s.
-         * 

-         *
-         * string id = 5 [(.google.api.field_behavior) = OPTIONAL];
-         *
-         * @return The id.
-         */
-        public java.lang.String getId() {
-          java.lang.Object ref = id_;
-          if (!(ref instanceof java.lang.String)) {
-            com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
-            java.lang.String s = bs.toStringUtf8();
-            id_ = s;
-            return s;
-          } else {
-            return (java.lang.String) ref;
-          }
-        }
-        /**
-         *
-         *
-         * 
-         * Optional. This is the identifier used by referencing [PageAnchor][google.cloud.documentai.v1beta2.Document.PageAnchor]s.
-         * 

-         *
-         * string id = 5 [(.google.api.field_behavior) = OPTIONAL];
-         *
-         * @return The bytes for id.
-         */
-        public com.google.protobuf.ByteString getIdBytes() {
-          java.lang.Object ref = id_;
-          if (ref instanceof String) {
-            com.google.protobuf.ByteString b =
-                com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
-            id_ = b;
-            return b;
-          } else {
-            return (com.google.protobuf.ByteString) ref;
-          }
-        }
-        /**
-         *
-         *
-         * 
-         * Optional. This is the identifier used by referencing [PageAnchor][google.cloud.documentai.v1beta2.Document.PageAnchor]s.
-         * 

-         *
-         * string id = 5 [(.google.api.field_behavior) = OPTIONAL];
-         *
-         * @param value The id to set.
-         * @return This builder for chaining.
-         */
-        public Builder setId(java.lang.String value) {
-          if (value == null) {
-            throw new NullPointerException();
-          }
-          id_ = value;
-          bitField0_ |= 0x00000010;
-          onChanged();
-          return this;
-        }
-        /**
-         *
-         *
-         * 
-         * Optional. This is the identifier used by referencing [PageAnchor][google.cloud.documentai.v1beta2.Document.PageAnchor]s.
-         * 

-         *
-         * string id = 5 [(.google.api.field_behavior) = OPTIONAL];
-         *
-         * @return This builder for chaining.
-         */
-        public Builder clearId() {
-          id_ = getDefaultInstance().getId();
-          bitField0_ = (bitField0_ & ~0x00000010);
-          onChanged();
-          return this;
-        }
-        /**
-         *
-         *
-         * 
-         * Optional. This is the identifier used by referencing [PageAnchor][google.cloud.documentai.v1beta2.Document.PageAnchor]s.
-         * 

-         *
-         * string id = 5 [(.google.api.field_behavior) = OPTIONAL];
-         *
-         * @param value The bytes for id to set.
-         * @return This builder for chaining.
-         */
-        public Builder setIdBytes(com.google.protobuf.ByteString value) {
-          if (value == null) {
-            throw new NullPointerException();
-          }
-          checkByteStringIsUtf8(value);
-          id_ = value;
-          bitField0_ |= 0x00000010;
-          onChanged();
-          return this;
-        }
-
-        @java.lang.Override
-        public final Builder setUnknownFields(
-            final com.google.protobuf.UnknownFieldSet unknownFields) {
-          return super.setUnknownFields(unknownFields);
+        @java.lang.Override
+        public final Builder setUnknownFields(
+            final com.google.protobuf.UnknownFieldSet unknownFields) {
+          return super.setUnknownFields(unknownFields);
         }
 
         @java.lang.Override
@@ -8274,25 +8051,24 @@ public final Builder mergeUnknownFields(
           return super.mergeUnknownFields(unknownFields);
         }
 
-        // @@protoc_insertion_point(builder_scope:google.cloud.documentai.v1beta2.Document.Page.Layout)
+        // @@protoc_insertion_point(builder_scope:google.cloud.documentai.v1beta2.Document.Page.Image)
       }
 
-      // @@protoc_insertion_point(class_scope:google.cloud.documentai.v1beta2.Document.Page.Layout)
-      private static final com.google.cloud.documentai.v1beta2.Document.Page.Layout
-          DEFAULT_INSTANCE;
+      // @@protoc_insertion_point(class_scope:google.cloud.documentai.v1beta2.Document.Page.Image)
+      private static final com.google.cloud.documentai.v1beta2.Document.Page.Image DEFAULT_INSTANCE;
 
       static {
-        DEFAULT_INSTANCE = new com.google.cloud.documentai.v1beta2.Document.Page.Layout();
+        DEFAULT_INSTANCE = new com.google.cloud.documentai.v1beta2.Document.Page.Image();
       }
 
-      public static com.google.cloud.documentai.v1beta2.Document.Page.Layout getDefaultInstance() {
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Image getDefaultInstance() {
         return DEFAULT_INSTANCE;
       }
 
-      private static final com.google.protobuf.Parser PARSER =
-          new com.google.protobuf.AbstractParser() {
+      private static final com.google.protobuf.Parser PARSER =
+          new com.google.protobuf.AbstractParser() {
             @java.lang.Override
-            public Layout parsePartialFrom(
+            public Image parsePartialFrom(
                 com.google.protobuf.CodedInputStream input,
                 com.google.protobuf.ExtensionRegistryLite extensionRegistry)
                 throws com.google.protobuf.InvalidProtocolBufferException {
@@ -8312,307 +8088,199 @@ public Layout parsePartialFrom(
             }
           };
 
-      public static com.google.protobuf.Parser parser() {
+      public static com.google.protobuf.Parser parser() {
         return PARSER;
       }
 
       @java.lang.Override
-      public com.google.protobuf.Parser getParserForType() {
+      public com.google.protobuf.Parser getParserForType() {
         return PARSER;
       }
 
       @java.lang.Override
-      public com.google.cloud.documentai.v1beta2.Document.Page.Layout getDefaultInstanceForType() {
+      public com.google.cloud.documentai.v1beta2.Document.Page.Image getDefaultInstanceForType() {
         return DEFAULT_INSTANCE;
       }
     }
 
-    public interface BlockOrBuilder
+    public interface MatrixOrBuilder
         extends
-        // @@protoc_insertion_point(interface_extends:google.cloud.documentai.v1beta2.Document.Page.Block)
+        // @@protoc_insertion_point(interface_extends:google.cloud.documentai.v1beta2.Document.Page.Matrix)
         com.google.protobuf.MessageOrBuilder {
 
       /**
        *
        *
        * 
-       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [Block][google.cloud.documentai.v1beta2.Document.Page.Block].
+       * Number of rows in the matrix.
        * 

        *
-       * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+       * int32 rows = 1;
        *
-       * @return Whether the layout field is set.
+       * @return The rows.
        */
-      boolean hasLayout();
+      int getRows();
+
       /**
        *
        *
        * 
-       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [Block][google.cloud.documentai.v1beta2.Document.Page.Block].
+       * Number of columns in the matrix.
        * 

        *
-       * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
-       *
-       * @return The layout.
-       */
-      com.google.cloud.documentai.v1beta2.Document.Page.Layout getLayout();
-      /**
-       *
+       * int32 cols = 2;
        *
-       * 
-       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [Block][google.cloud.documentai.v1beta2.Document.Page.Block].
-       * 

-       *
-       * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+       * @return The cols.
        */
-      com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder getLayoutOrBuilder();
+      int getCols();
 
       /**
        *
        *
        * 
-       * A list of detected languages together with confidence.
-       * 

-       *
-       * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
-       * 
-       */
-      java.util.List
-          getDetectedLanguagesList();
-      /**
-       *
-       *
-       * 
-       * A list of detected languages together with confidence.
+       * This encodes information about what data type the matrix uses.
+       * For example, 0 (CV_8U) is an unsigned 8-bit image. For the full list
+       * of OpenCV primitive data types, please refer to
+       * https://docs.opencv.org/4.3.0/d1/d1b/group__core__hal__interface.html
        * 

        *
-       * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
-       * 
-       */
-      com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage getDetectedLanguages(
-          int index);
-      /**
-       *
-       *
-       * 
-       * A list of detected languages together with confidence.
-       * 

+       * int32 type = 3;
        *
-       * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
-       * 
+       * @return The type.
        */
-      int getDetectedLanguagesCount();
+      int getType();
+
       /**
        *
        *
        * 
-       * A list of detected languages together with confidence.
+       * The matrix data.
        * 

        *
-       * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
-       * 
-       */
-      java.util.List<
-              ? extends com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>
-          getDetectedLanguagesOrBuilderList();
-      /**
-       *
-       *
-       * 
-       * A list of detected languages together with confidence.
-       * 

+       * bytes data = 4;
        *
-       * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
-       * 
+       * @return The data.
        */
-      com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder
-          getDetectedLanguagesOrBuilder(int index);
+      com.google.protobuf.ByteString getData();
     }
     /**
      *
      *
      * 
-     * A block has a set of lines (collected into paragraphs) that have a
-     * common line-spacing and orientation.
+     * Representation for transformation matrix, intended to be compatible and
+     * used with OpenCV format for image manipulation.
      * 

      *
-     * Protobuf type {@code google.cloud.documentai.v1beta2.Document.Page.Block}
+     * Protobuf type {@code google.cloud.documentai.v1beta2.Document.Page.Matrix}
      */
-    public static final class Block extends com.google.protobuf.GeneratedMessageV3
+    public static final class Matrix extends com.google.protobuf.GeneratedMessageV3
         implements
-        // @@protoc_insertion_point(message_implements:google.cloud.documentai.v1beta2.Document.Page.Block)
-        BlockOrBuilder {
+        // @@protoc_insertion_point(message_implements:google.cloud.documentai.v1beta2.Document.Page.Matrix)
+        MatrixOrBuilder {
       private static final long serialVersionUID = 0L;
-      // Use Block.newBuilder() to construct.
-      private Block(com.google.protobuf.GeneratedMessageV3.Builder builder) {
+      // Use Matrix.newBuilder() to construct.
+      private Matrix(com.google.protobuf.GeneratedMessageV3.Builder builder) {
         super(builder);
       }
 
-      private Block() {
-        detectedLanguages_ = java.util.Collections.emptyList();
+      private Matrix() {
+        data_ = com.google.protobuf.ByteString.EMPTY;
       }
 
       @java.lang.Override
       @SuppressWarnings({"unused"})
       protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
-        return new Block();
+        return new Matrix();
       }
 
       public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
         return com.google.cloud.documentai.v1beta2.DocumentProto
-            .internal_static_google_cloud_documentai_v1beta2_Document_Page_Block_descriptor;
+            .internal_static_google_cloud_documentai_v1beta2_Document_Page_Matrix_descriptor;
       }
 
       @java.lang.Override
       protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
           internalGetFieldAccessorTable() {
         return com.google.cloud.documentai.v1beta2.DocumentProto
-            .internal_static_google_cloud_documentai_v1beta2_Document_Page_Block_fieldAccessorTable
+            .internal_static_google_cloud_documentai_v1beta2_Document_Page_Matrix_fieldAccessorTable
             .ensureFieldAccessorsInitialized(
-                com.google.cloud.documentai.v1beta2.Document.Page.Block.class,
-                com.google.cloud.documentai.v1beta2.Document.Page.Block.Builder.class);
+                com.google.cloud.documentai.v1beta2.Document.Page.Matrix.class,
+                com.google.cloud.documentai.v1beta2.Document.Page.Matrix.Builder.class);
       }
 
-      public static final int LAYOUT_FIELD_NUMBER = 1;
-      private com.google.cloud.documentai.v1beta2.Document.Page.Layout layout_;
+      public static final int ROWS_FIELD_NUMBER = 1;
+      private int rows_ = 0;
       /**
        *
        *
        * 
-       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [Block][google.cloud.documentai.v1beta2.Document.Page.Block].
+       * Number of rows in the matrix.
        * 

        *
-       * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+       * int32 rows = 1;
        *
-       * @return Whether the layout field is set.
+       * @return The rows.
        */
       @java.lang.Override
-      public boolean hasLayout() {
-        return layout_ != null;
+      public int getRows() {
+        return rows_;
       }
+
+      public static final int COLS_FIELD_NUMBER = 2;
+      private int cols_ = 0;
       /**
        *
        *
        * 
-       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [Block][google.cloud.documentai.v1beta2.Document.Page.Block].
+       * Number of columns in the matrix.
        * 

        *
-       * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
-       *
-       * @return The layout.
-       */
-      @java.lang.Override
-      public com.google.cloud.documentai.v1beta2.Document.Page.Layout getLayout() {
-        return layout_ == null
-            ? com.google.cloud.documentai.v1beta2.Document.Page.Layout.getDefaultInstance()
-            : layout_;
-      }
-      /**
-       *
-       *
-       * 
-       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [Block][google.cloud.documentai.v1beta2.Document.Page.Block].
-       * 

+       * int32 cols = 2;
        *
-       * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+       * @return The cols.
        */
       @java.lang.Override
-      public com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder
-          getLayoutOrBuilder() {
-        return layout_ == null
-            ? com.google.cloud.documentai.v1beta2.Document.Page.Layout.getDefaultInstance()
-            : layout_;
+      public int getCols() {
+        return cols_;
       }
 
-      public static final int DETECTED_LANGUAGES_FIELD_NUMBER = 2;
-
-      @SuppressWarnings("serial")
-      private java.util.List
-          detectedLanguages_;
-      /**
-       *
-       *
-       * 
-       * A list of detected languages together with confidence.
-       * 

-       *
-       * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
-       * 
-       */
-      @java.lang.Override
-      public java.util.List
-          getDetectedLanguagesList() {
-        return detectedLanguages_;
-      }
+      public static final int TYPE_FIELD_NUMBER = 3;
+      private int type_ = 0;
       /**
        *
        *
        * 
-       * A list of detected languages together with confidence.
+       * This encodes information about what data type the matrix uses.
+       * For example, 0 (CV_8U) is an unsigned 8-bit image. For the full list
+       * of OpenCV primitive data types, please refer to
+       * https://docs.opencv.org/4.3.0/d1/d1b/group__core__hal__interface.html
        * 

        *
-       * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
-       * 
-       */
-      @java.lang.Override
-      public java.util.List<
-              ? extends com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>
-          getDetectedLanguagesOrBuilderList() {
-        return detectedLanguages_;
-      }
-      /**
-       *
-       *
-       * 
-       * A list of detected languages together with confidence.
-       * 

+       * int32 type = 3;
        *
-       * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
-       * 
+       * @return The type.
        */
       @java.lang.Override
-      public int getDetectedLanguagesCount() {
-        return detectedLanguages_.size();
+      public int getType() {
+        return type_;
       }
+
+      public static final int DATA_FIELD_NUMBER = 4;
+      private com.google.protobuf.ByteString data_ = com.google.protobuf.ByteString.EMPTY;
       /**
        *
        *
        * 
-       * A list of detected languages together with confidence.
+       * The matrix data.
        * 

        *
-       * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
-       * 
-       */
-      @java.lang.Override
-      public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage
-          getDetectedLanguages(int index) {
-        return detectedLanguages_.get(index);
-      }
-      /**
-       *
-       *
-       * 
-       * A list of detected languages together with confidence.
-       * 

+       * bytes data = 4;
        *
-       * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
-       * 
+       * @return The data.
        */
       @java.lang.Override
-      public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder
-          getDetectedLanguagesOrBuilder(int index) {
-        return detectedLanguages_.get(index);
+      public com.google.protobuf.ByteString getData() {
+        return data_;
       }
 
       private byte memoizedIsInitialized = -1;
@@ -8629,11 +8297,17 @@ public final boolean isInitialized() {
 
       @java.lang.Override
       public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
-        if (layout_ != null) {
-          output.writeMessage(1, getLayout());
+        if (rows_ != 0) {
+          output.writeInt32(1, rows_);
         }
-        for (int i = 0; i < detectedLanguages_.size(); i++) {
-          output.writeMessage(2, detectedLanguages_.get(i));
+        if (cols_ != 0) {
+          output.writeInt32(2, cols_);
+        }
+        if (type_ != 0) {
+          output.writeInt32(3, type_);
+        }
+        if (!data_.isEmpty()) {
+          output.writeBytes(4, data_);
         }
         getUnknownFields().writeTo(output);
       }
@@ -8644,13 +8318,17 @@ public int getSerializedSize() {
         if (size != -1) return size;
 
         size = 0;
-        if (layout_ != null) {
-          size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, getLayout());
+        if (rows_ != 0) {
+          size += com.google.protobuf.CodedOutputStream.computeInt32Size(1, rows_);
         }
-        for (int i = 0; i < detectedLanguages_.size(); i++) {
-          size +=
-              com.google.protobuf.CodedOutputStream.computeMessageSize(
-                  2, detectedLanguages_.get(i));
+        if (cols_ != 0) {
+          size += com.google.protobuf.CodedOutputStream.computeInt32Size(2, cols_);
+        }
+        if (type_ != 0) {
+          size += com.google.protobuf.CodedOutputStream.computeInt32Size(3, type_);
+        }
+        if (!data_.isEmpty()) {
+          size += com.google.protobuf.CodedOutputStream.computeBytesSize(4, data_);
         }
         size += getUnknownFields().getSerializedSize();
         memoizedSize = size;
@@ -8662,17 +8340,16 @@ public boolean equals(final java.lang.Object obj) {
         if (obj == this) {
           return true;
         }
-        if (!(obj instanceof com.google.cloud.documentai.v1beta2.Document.Page.Block)) {
+        if (!(obj instanceof com.google.cloud.documentai.v1beta2.Document.Page.Matrix)) {
           return super.equals(obj);
         }
-        com.google.cloud.documentai.v1beta2.Document.Page.Block other =
-            (com.google.cloud.documentai.v1beta2.Document.Page.Block) obj;
+        com.google.cloud.documentai.v1beta2.Document.Page.Matrix other =
+            (com.google.cloud.documentai.v1beta2.Document.Page.Matrix) obj;
 
-        if (hasLayout() != other.hasLayout()) return false;
-        if (hasLayout()) {
-          if (!getLayout().equals(other.getLayout())) return false;
-        }
-        if (!getDetectedLanguagesList().equals(other.getDetectedLanguagesList())) return false;
+        if (getRows() != other.getRows()) return false;
+        if (getCols() != other.getCols()) return false;
+        if (getType() != other.getType()) return false;
+        if (!getData().equals(other.getData())) return false;
         if (!getUnknownFields().equals(other.getUnknownFields())) return false;
         return true;
       }
@@ -8684,84 +8361,84 @@ public int hashCode() {
         }
         int hash = 41;
         hash = (19 * hash) + getDescriptor().hashCode();
-        if (hasLayout()) {
-          hash = (37 * hash) + LAYOUT_FIELD_NUMBER;
-          hash = (53 * hash) + getLayout().hashCode();
-        }
-        if (getDetectedLanguagesCount() > 0) {
-          hash = (37 * hash) + DETECTED_LANGUAGES_FIELD_NUMBER;
-          hash = (53 * hash) + getDetectedLanguagesList().hashCode();
-        }
+        hash = (37 * hash) + ROWS_FIELD_NUMBER;
+        hash = (53 * hash) + getRows();
+        hash = (37 * hash) + COLS_FIELD_NUMBER;
+        hash = (53 * hash) + getCols();
+        hash = (37 * hash) + TYPE_FIELD_NUMBER;
+        hash = (53 * hash) + getType();
+        hash = (37 * hash) + DATA_FIELD_NUMBER;
+        hash = (53 * hash) + getData().hashCode();
         hash = (29 * hash) + getUnknownFields().hashCode();
         memoizedHashCode = hash;
         return hash;
       }
 
-      public static com.google.cloud.documentai.v1beta2.Document.Page.Block parseFrom(
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Matrix parseFrom(
           java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
         return PARSER.parseFrom(data);
       }
 
-      public static com.google.cloud.documentai.v1beta2.Document.Page.Block parseFrom(
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Matrix parseFrom(
           java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws com.google.protobuf.InvalidProtocolBufferException {
         return PARSER.parseFrom(data, extensionRegistry);
       }
 
-      public static com.google.cloud.documentai.v1beta2.Document.Page.Block parseFrom(
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Matrix parseFrom(
           com.google.protobuf.ByteString data)
           throws com.google.protobuf.InvalidProtocolBufferException {
         return PARSER.parseFrom(data);
       }
 
-      public static com.google.cloud.documentai.v1beta2.Document.Page.Block parseFrom(
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Matrix parseFrom(
           com.google.protobuf.ByteString data,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws com.google.protobuf.InvalidProtocolBufferException {
         return PARSER.parseFrom(data, extensionRegistry);
       }
 
-      public static com.google.cloud.documentai.v1beta2.Document.Page.Block parseFrom(byte[] data)
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Matrix parseFrom(byte[] data)
           throws com.google.protobuf.InvalidProtocolBufferException {
         return PARSER.parseFrom(data);
       }
 
-      public static com.google.cloud.documentai.v1beta2.Document.Page.Block parseFrom(
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Matrix parseFrom(
           byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws com.google.protobuf.InvalidProtocolBufferException {
         return PARSER.parseFrom(data, extensionRegistry);
       }
 
-      public static com.google.cloud.documentai.v1beta2.Document.Page.Block parseFrom(
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Matrix parseFrom(
           java.io.InputStream input) throws java.io.IOException {
         return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
       }
 
-      public static com.google.cloud.documentai.v1beta2.Document.Page.Block parseFrom(
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Matrix parseFrom(
           java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws java.io.IOException {
         return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
             PARSER, input, extensionRegistry);
       }
 
-      public static com.google.cloud.documentai.v1beta2.Document.Page.Block parseDelimitedFrom(
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Matrix parseDelimitedFrom(
           java.io.InputStream input) throws java.io.IOException {
         return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
       }
 
-      public static com.google.cloud.documentai.v1beta2.Document.Page.Block parseDelimitedFrom(
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Matrix parseDelimitedFrom(
           java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws java.io.IOException {
         return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
             PARSER, input, extensionRegistry);
       }
 
-      public static com.google.cloud.documentai.v1beta2.Document.Page.Block parseFrom(
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Matrix parseFrom(
           com.google.protobuf.CodedInputStream input) throws java.io.IOException {
         return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
       }
 
-      public static com.google.cloud.documentai.v1beta2.Document.Page.Block parseFrom(
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Matrix parseFrom(
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws java.io.IOException {
@@ -8779,7 +8456,7 @@ public static Builder newBuilder() {
       }
 
       public static Builder newBuilder(
-          com.google.cloud.documentai.v1beta2.Document.Page.Block prototype) {
+          com.google.cloud.documentai.v1beta2.Document.Page.Matrix prototype) {
         return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
       }
 
@@ -8798,33 +8475,33 @@ protected Builder newBuilderForType(
        *
        *
        * 
-       * A block has a set of lines (collected into paragraphs) that have a
-       * common line-spacing and orientation.
+       * Representation for transformation matrix, intended to be compatible and
+       * used with OpenCV format for image manipulation.
        * 

        *
-       * Protobuf type {@code google.cloud.documentai.v1beta2.Document.Page.Block}
+       * Protobuf type {@code google.cloud.documentai.v1beta2.Document.Page.Matrix}
        */
       public static final class Builder
           extends com.google.protobuf.GeneratedMessageV3.Builder
           implements
-          // @@protoc_insertion_point(builder_implements:google.cloud.documentai.v1beta2.Document.Page.Block)
-          com.google.cloud.documentai.v1beta2.Document.Page.BlockOrBuilder {
+          // @@protoc_insertion_point(builder_implements:google.cloud.documentai.v1beta2.Document.Page.Matrix)
+          com.google.cloud.documentai.v1beta2.Document.Page.MatrixOrBuilder {
         public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
           return com.google.cloud.documentai.v1beta2.DocumentProto
-              .internal_static_google_cloud_documentai_v1beta2_Document_Page_Block_descriptor;
+              .internal_static_google_cloud_documentai_v1beta2_Document_Page_Matrix_descriptor;
         }
 
         @java.lang.Override
         protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
             internalGetFieldAccessorTable() {
           return com.google.cloud.documentai.v1beta2.DocumentProto
-              .internal_static_google_cloud_documentai_v1beta2_Document_Page_Block_fieldAccessorTable
+              .internal_static_google_cloud_documentai_v1beta2_Document_Page_Matrix_fieldAccessorTable
               .ensureFieldAccessorsInitialized(
-                  com.google.cloud.documentai.v1beta2.Document.Page.Block.class,
-                  com.google.cloud.documentai.v1beta2.Document.Page.Block.Builder.class);
+                  com.google.cloud.documentai.v1beta2.Document.Page.Matrix.class,
+                  com.google.cloud.documentai.v1beta2.Document.Page.Matrix.Builder.class);
         }
 
-        // Construct using com.google.cloud.documentai.v1beta2.Document.Page.Block.newBuilder()
+        // Construct using com.google.cloud.documentai.v1beta2.Document.Page.Matrix.newBuilder()
         private Builder() {}
 
         private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
@@ -8835,35 +8512,28 @@ private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
         public Builder clear() {
           super.clear();
           bitField0_ = 0;
-          layout_ = null;
-          if (layoutBuilder_ != null) {
-            layoutBuilder_.dispose();
-            layoutBuilder_ = null;
-          }
-          if (detectedLanguagesBuilder_ == null) {
-            detectedLanguages_ = java.util.Collections.emptyList();
-          } else {
-            detectedLanguages_ = null;
-            detectedLanguagesBuilder_.clear();
-          }
-          bitField0_ = (bitField0_ & ~0x00000002);
+          rows_ = 0;
+          cols_ = 0;
+          type_ = 0;
+          data_ = com.google.protobuf.ByteString.EMPTY;
           return this;
         }
 
         @java.lang.Override
         public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
           return com.google.cloud.documentai.v1beta2.DocumentProto
-              .internal_static_google_cloud_documentai_v1beta2_Document_Page_Block_descriptor;
+              .internal_static_google_cloud_documentai_v1beta2_Document_Page_Matrix_descriptor;
         }
 
         @java.lang.Override
-        public com.google.cloud.documentai.v1beta2.Document.Page.Block getDefaultInstanceForType() {
-          return com.google.cloud.documentai.v1beta2.Document.Page.Block.getDefaultInstance();
+        public com.google.cloud.documentai.v1beta2.Document.Page.Matrix
+            getDefaultInstanceForType() {
+          return com.google.cloud.documentai.v1beta2.Document.Page.Matrix.getDefaultInstance();
         }
 
         @java.lang.Override
-        public com.google.cloud.documentai.v1beta2.Document.Page.Block build() {
-          com.google.cloud.documentai.v1beta2.Document.Page.Block result = buildPartial();
+        public com.google.cloud.documentai.v1beta2.Document.Page.Matrix build() {
+          com.google.cloud.documentai.v1beta2.Document.Page.Matrix result = buildPartial();
           if (!result.isInitialized()) {
             throw newUninitializedMessageException(result);
           }
@@ -8871,10 +8541,9 @@ public com.google.cloud.documentai.v1beta2.Document.Page.Block build() {
         }
 
         @java.lang.Override
-        public com.google.cloud.documentai.v1beta2.Document.Page.Block buildPartial() {
-          com.google.cloud.documentai.v1beta2.Document.Page.Block result =
-              new com.google.cloud.documentai.v1beta2.Document.Page.Block(this);
-          buildPartialRepeatedFields(result);
+        public com.google.cloud.documentai.v1beta2.Document.Page.Matrix buildPartial() {
+          com.google.cloud.documentai.v1beta2.Document.Page.Matrix result =
+              new com.google.cloud.documentai.v1beta2.Document.Page.Matrix(this);
           if (bitField0_ != 0) {
             buildPartial0(result);
           }
@@ -8882,23 +8551,20 @@ public com.google.cloud.documentai.v1beta2.Document.Page.Block buildPartial() {
           return result;
         }
 
-        private void buildPartialRepeatedFields(
-            com.google.cloud.documentai.v1beta2.Document.Page.Block result) {
-          if (detectedLanguagesBuilder_ == null) {
-            if (((bitField0_ & 0x00000002) != 0)) {
-              detectedLanguages_ = java.util.Collections.unmodifiableList(detectedLanguages_);
-              bitField0_ = (bitField0_ & ~0x00000002);
-            }
-            result.detectedLanguages_ = detectedLanguages_;
-          } else {
-            result.detectedLanguages_ = detectedLanguagesBuilder_.build();
-          }
-        }
-
-        private void buildPartial0(com.google.cloud.documentai.v1beta2.Document.Page.Block result) {
+        private void buildPartial0(
+            com.google.cloud.documentai.v1beta2.Document.Page.Matrix result) {
           int from_bitField0_ = bitField0_;
           if (((from_bitField0_ & 0x00000001) != 0)) {
-            result.layout_ = layoutBuilder_ == null ? layout_ : layoutBuilder_.build();
+            result.rows_ = rows_;
+          }
+          if (((from_bitField0_ & 0x00000002) != 0)) {
+            result.cols_ = cols_;
+          }
+          if (((from_bitField0_ & 0x00000004) != 0)) {
+            result.type_ = type_;
+          }
+          if (((from_bitField0_ & 0x00000008) != 0)) {
+            result.data_ = data_;
           }
         }
 
@@ -8939,46 +8605,29 @@ public Builder addRepeatedField(
 
         @java.lang.Override
         public Builder mergeFrom(com.google.protobuf.Message other) {
-          if (other instanceof com.google.cloud.documentai.v1beta2.Document.Page.Block) {
-            return mergeFrom((com.google.cloud.documentai.v1beta2.Document.Page.Block) other);
+          if (other instanceof com.google.cloud.documentai.v1beta2.Document.Page.Matrix) {
+            return mergeFrom((com.google.cloud.documentai.v1beta2.Document.Page.Matrix) other);
           } else {
             super.mergeFrom(other);
             return this;
           }
         }
 
-        public Builder mergeFrom(com.google.cloud.documentai.v1beta2.Document.Page.Block other) {
-          if (other == com.google.cloud.documentai.v1beta2.Document.Page.Block.getDefaultInstance())
+        public Builder mergeFrom(com.google.cloud.documentai.v1beta2.Document.Page.Matrix other) {
+          if (other
+              == com.google.cloud.documentai.v1beta2.Document.Page.Matrix.getDefaultInstance())
             return this;
-          if (other.hasLayout()) {
-            mergeLayout(other.getLayout());
+          if (other.getRows() != 0) {
+            setRows(other.getRows());
           }
-          if (detectedLanguagesBuilder_ == null) {
-            if (!other.detectedLanguages_.isEmpty()) {
-              if (detectedLanguages_.isEmpty()) {
-                detectedLanguages_ = other.detectedLanguages_;
-                bitField0_ = (bitField0_ & ~0x00000002);
-              } else {
-                ensureDetectedLanguagesIsMutable();
-                detectedLanguages_.addAll(other.detectedLanguages_);
-              }
-              onChanged();
-            }
-          } else {
-            if (!other.detectedLanguages_.isEmpty()) {
-              if (detectedLanguagesBuilder_.isEmpty()) {
-                detectedLanguagesBuilder_.dispose();
-                detectedLanguagesBuilder_ = null;
-                detectedLanguages_ = other.detectedLanguages_;
-                bitField0_ = (bitField0_ & ~0x00000002);
-                detectedLanguagesBuilder_ =
-                    com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders
-                        ? getDetectedLanguagesFieldBuilder()
-                        : null;
-              } else {
-                detectedLanguagesBuilder_.addAllMessages(other.detectedLanguages_);
-              }
-            }
+          if (other.getCols() != 0) {
+            setCols(other.getCols());
+          }
+          if (other.getType() != 0) {
+            setType(other.getType());
+          }
+          if (other.getData() != com.google.protobuf.ByteString.EMPTY) {
+            setData(other.getData());
           }
           this.mergeUnknownFields(other.getUnknownFields());
           onChanged();
@@ -9006,27 +8655,30 @@ public Builder mergeFrom(
                 case 0:
                   done = true;
                   break;
-                case 10:
+                case 8:
                   {
-                    input.readMessage(getLayoutFieldBuilder().getBuilder(), extensionRegistry);
+                    rows_ = input.readInt32();
                     bitField0_ |= 0x00000001;
                     break;
-                  } // case 10
-                case 18:
+                  } // case 8
+                case 16:
                   {
-                    com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage m =
-                        input.readMessage(
-                            com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage
-                                .parser(),
-                            extensionRegistry);
-                    if (detectedLanguagesBuilder_ == null) {
-                      ensureDetectedLanguagesIsMutable();
-                      detectedLanguages_.add(m);
-                    } else {
-                      detectedLanguagesBuilder_.addMessage(m);
-                    }
+                    cols_ = input.readInt32();
+                    bitField0_ |= 0x00000002;
                     break;
-                  } // case 18
+                  } // case 16
+                case 24:
+                  {
+                    type_ = input.readInt32();
+                    bitField0_ |= 0x00000004;
+                    break;
+                  } // case 24
+                case 34:
+                  {
+                    data_ = input.readBytes();
+                    bitField0_ |= 0x00000008;
+                    break;
+                  } // case 34
                 default:
                   {
                     if (!super.parseUnknownField(input, extensionRegistry, tag)) {
@@ -9046,112 +8698,91 @@ public Builder mergeFrom(
 
         private int bitField0_;
 
-        private com.google.cloud.documentai.v1beta2.Document.Page.Layout layout_;
-        private com.google.protobuf.SingleFieldBuilderV3<
-                com.google.cloud.documentai.v1beta2.Document.Page.Layout,
-                com.google.cloud.documentai.v1beta2.Document.Page.Layout.Builder,
-                com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder>
-            layoutBuilder_;
+        private int rows_;
         /**
          *
          *
          * 
-         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [Block][google.cloud.documentai.v1beta2.Document.Page.Block].
+         * Number of rows in the matrix.
          * 

          *
-         * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+         * int32 rows = 1;
          *
-         * @return Whether the layout field is set.
+         * @return The rows.
          */
-        public boolean hasLayout() {
-          return ((bitField0_ & 0x00000001) != 0);
+        @java.lang.Override
+        public int getRows() {
+          return rows_;
         }
         /**
          *
          *
          * 
-         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [Block][google.cloud.documentai.v1beta2.Document.Page.Block].
+         * Number of rows in the matrix.
          * 

          *
-         * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+         * int32 rows = 1;
          *
-         * @return The layout.
+         * @param value The rows to set.
+         * @return This builder for chaining.
          */
-        public com.google.cloud.documentai.v1beta2.Document.Page.Layout getLayout() {
-          if (layoutBuilder_ == null) {
-            return layout_ == null
-                ? com.google.cloud.documentai.v1beta2.Document.Page.Layout.getDefaultInstance()
-                : layout_;
-          } else {
-            return layoutBuilder_.getMessage();
-          }
+        public Builder setRows(int value) {
+
+          rows_ = value;
+          bitField0_ |= 0x00000001;
+          onChanged();
+          return this;
         }
         /**
          *
          *
          * 
-         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [Block][google.cloud.documentai.v1beta2.Document.Page.Block].
+         * Number of rows in the matrix.
          * 

          *
-         * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+         * int32 rows = 1;
+         *
+         * @return This builder for chaining.
          */
-        public Builder setLayout(com.google.cloud.documentai.v1beta2.Document.Page.Layout value) {
-          if (layoutBuilder_ == null) {
-            if (value == null) {
-              throw new NullPointerException();
-            }
-            layout_ = value;
-          } else {
-            layoutBuilder_.setMessage(value);
-          }
-          bitField0_ |= 0x00000001;
+        public Builder clearRows() {
+          bitField0_ = (bitField0_ & ~0x00000001);
+          rows_ = 0;
           onChanged();
           return this;
         }
+
+        private int cols_;
         /**
          *
          *
          * 
-         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [Block][google.cloud.documentai.v1beta2.Document.Page.Block].
+         * Number of columns in the matrix.
          * 

          *
-         * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+         * int32 cols = 2;
+         *
+         * @return The cols.
          */
-        public Builder setLayout(
-            com.google.cloud.documentai.v1beta2.Document.Page.Layout.Builder builderForValue) {
-          if (layoutBuilder_ == null) {
-            layout_ = builderForValue.build();
-          } else {
-            layoutBuilder_.setMessage(builderForValue.build());
-          }
-          bitField0_ |= 0x00000001;
-          onChanged();
-          return this;
+        @java.lang.Override
+        public int getCols() {
+          return cols_;
         }
         /**
          *
          *
          * 
-         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [Block][google.cloud.documentai.v1beta2.Document.Page.Block].
+         * Number of columns in the matrix.
          * 

          *
-         * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+         * int32 cols = 2;
+         *
+         * @param value The cols to set.
+         * @return This builder for chaining.
          */
-        public Builder mergeLayout(com.google.cloud.documentai.v1beta2.Document.Page.Layout value) {
-          if (layoutBuilder_ == null) {
-            if (((bitField0_ & 0x00000001) != 0)
-                && layout_ != null
-                && layout_
-                    != com.google.cloud.documentai.v1beta2.Document.Page.Layout
-                        .getDefaultInstance()) {
-              getLayoutBuilder().mergeFrom(value);
-            } else {
-              layout_ = value;
-            }
-          } else {
-            layoutBuilder_.mergeFrom(value);
-          }
-          bitField0_ |= 0x00000001;
+        public Builder setCols(int value) {
+
+          cols_ = value;
+          bitField0_ |= 0x00000002;
           onChanged();
           return this;
         }
@@ -9159,495 +8790,136 @@ public Builder mergeLayout(com.google.cloud.documentai.v1beta2.Document.Page.Lay
          *
          *
          * 
-         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [Block][google.cloud.documentai.v1beta2.Document.Page.Block].
+         * Number of columns in the matrix.
          * 

          *
-         * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+         * int32 cols = 2;
+         *
+         * @return This builder for chaining.
          */
-        public Builder clearLayout() {
-          bitField0_ = (bitField0_ & ~0x00000001);
-          layout_ = null;
-          if (layoutBuilder_ != null) {
-            layoutBuilder_.dispose();
-            layoutBuilder_ = null;
-          }
+        public Builder clearCols() {
+          bitField0_ = (bitField0_ & ~0x00000002);
+          cols_ = 0;
           onChanged();
           return this;
         }
+
+        private int type_;
         /**
          *
          *
          * 
-         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [Block][google.cloud.documentai.v1beta2.Document.Page.Block].
+         * This encodes information about what data type the matrix uses.
+         * For example, 0 (CV_8U) is an unsigned 8-bit image. For the full list
+         * of OpenCV primitive data types, please refer to
+         * https://docs.opencv.org/4.3.0/d1/d1b/group__core__hal__interface.html
          * 

          *
-         * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
-         */
-        public com.google.cloud.documentai.v1beta2.Document.Page.Layout.Builder getLayoutBuilder() {
-          bitField0_ |= 0x00000001;
-          onChanged();
-          return getLayoutFieldBuilder().getBuilder();
-        }
-        /**
-         *
-         *
-         * 
-         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [Block][google.cloud.documentai.v1beta2.Document.Page.Block].
-         * 

-         *
-         * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
-         */
-        public com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder
-            getLayoutOrBuilder() {
-          if (layoutBuilder_ != null) {
-            return layoutBuilder_.getMessageOrBuilder();
-          } else {
-            return layout_ == null
-                ? com.google.cloud.documentai.v1beta2.Document.Page.Layout.getDefaultInstance()
-                : layout_;
-          }
-        }
-        /**
-         *
-         *
-         * 
-         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [Block][google.cloud.documentai.v1beta2.Document.Page.Block].
-         * 

-         *
-         * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
-         */
-        private com.google.protobuf.SingleFieldBuilderV3<
-                com.google.cloud.documentai.v1beta2.Document.Page.Layout,
-                com.google.cloud.documentai.v1beta2.Document.Page.Layout.Builder,
-                com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder>
-            getLayoutFieldBuilder() {
-          if (layoutBuilder_ == null) {
-            layoutBuilder_ =
-                new com.google.protobuf.SingleFieldBuilderV3<
-                    com.google.cloud.documentai.v1beta2.Document.Page.Layout,
-                    com.google.cloud.documentai.v1beta2.Document.Page.Layout.Builder,
-                    com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder>(
-                    getLayout(), getParentForChildren(), isClean());
-            layout_ = null;
-          }
-          return layoutBuilder_;
-        }
-
-        private java.util.List
-            detectedLanguages_ = java.util.Collections.emptyList();
-
-        private void ensureDetectedLanguagesIsMutable() {
-          if (!((bitField0_ & 0x00000002) != 0)) {
-            detectedLanguages_ =
-                new java.util.ArrayList<
-                    com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage>(
-                    detectedLanguages_);
-            bitField0_ |= 0x00000002;
-          }
-        }
-
-        private com.google.protobuf.RepeatedFieldBuilderV3<
-                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage,
-                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder,
-                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>
-            detectedLanguagesBuilder_;
-
-        /**
-         *
-         *
-         * 
-         * A list of detected languages together with confidence.
-         * 

-         *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
-         * 
-         */
-        public java.util.List
-            getDetectedLanguagesList() {
-          if (detectedLanguagesBuilder_ == null) {
-            return java.util.Collections.unmodifiableList(detectedLanguages_);
-          } else {
-            return detectedLanguagesBuilder_.getMessageList();
-          }
-        }
-        /**
-         *
-         *
-         * 
-         * A list of detected languages together with confidence.
-         * 

+         * int32 type = 3;
          *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
-         * 
+         * @return The type.
          */
-        public int getDetectedLanguagesCount() {
-          if (detectedLanguagesBuilder_ == null) {
-            return detectedLanguages_.size();
-          } else {
-            return detectedLanguagesBuilder_.getCount();
-          }
+        @java.lang.Override
+        public int getType() {
+          return type_;
         }
         /**
          *
          *
          * 
-         * A list of detected languages together with confidence.
+         * This encodes information about what data type the matrix uses.
+         * For example, 0 (CV_8U) is an unsigned 8-bit image. For the full list
+         * of OpenCV primitive data types, please refer to
+         * https://docs.opencv.org/4.3.0/d1/d1b/group__core__hal__interface.html
          * 

          *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
-         * 
-         */
-        public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage
-            getDetectedLanguages(int index) {
-          if (detectedLanguagesBuilder_ == null) {
-            return detectedLanguages_.get(index);
-          } else {
-            return detectedLanguagesBuilder_.getMessage(index);
-          }
-        }
-        /**
-         *
-         *
-         * 
-         * A list of detected languages together with confidence.
-         * 

+         * int32 type = 3;
          *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
-         * 
+         * @param value The type to set.
+         * @return This builder for chaining.
          */
-        public Builder setDetectedLanguages(
-            int index, com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value) {
-          if (detectedLanguagesBuilder_ == null) {
-            if (value == null) {
-              throw new NullPointerException();
-            }
-            ensureDetectedLanguagesIsMutable();
-            detectedLanguages_.set(index, value);
-            onChanged();
-          } else {
-            detectedLanguagesBuilder_.setMessage(index, value);
-          }
+        public Builder setType(int value) {
+
+          type_ = value;
+          bitField0_ |= 0x00000004;
+          onChanged();
           return this;
         }
         /**
          *
          *
          * 
-         * A list of detected languages together with confidence.
+         * This encodes information about what data type the matrix uses.
+         * For example, 0 (CV_8U) is an unsigned 8-bit image. For the full list
+         * of OpenCV primitive data types, please refer to
+         * https://docs.opencv.org/4.3.0/d1/d1b/group__core__hal__interface.html
          * 

          *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
-         * 
-         */
-        public Builder setDetectedLanguages(
-            int index,
-            com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
-                builderForValue) {
-          if (detectedLanguagesBuilder_ == null) {
-            ensureDetectedLanguagesIsMutable();
-            detectedLanguages_.set(index, builderForValue.build());
-            onChanged();
-          } else {
-            detectedLanguagesBuilder_.setMessage(index, builderForValue.build());
-          }
-          return this;
-        }
-        /**
-         *
-         *
-         * 
-         * A list of detected languages together with confidence.
-         * 

+         * int32 type = 3;
          *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
-         * 
+         * @return This builder for chaining.
          */
-        public Builder addDetectedLanguages(
-            com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value) {
-          if (detectedLanguagesBuilder_ == null) {
-            if (value == null) {
-              throw new NullPointerException();
-            }
-            ensureDetectedLanguagesIsMutable();
-            detectedLanguages_.add(value);
-            onChanged();
-          } else {
-            detectedLanguagesBuilder_.addMessage(value);
-          }
+        public Builder clearType() {
+          bitField0_ = (bitField0_ & ~0x00000004);
+          type_ = 0;
+          onChanged();
           return this;
         }
+
+        private com.google.protobuf.ByteString data_ = com.google.protobuf.ByteString.EMPTY;
         /**
          *
          *
          * 
-         * A list of detected languages together with confidence.
+         * The matrix data.
          * 

          *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
-         * 
-         */
-        public Builder addDetectedLanguages(
-            int index, com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value) {
-          if (detectedLanguagesBuilder_ == null) {
-            if (value == null) {
-              throw new NullPointerException();
-            }
-            ensureDetectedLanguagesIsMutable();
-            detectedLanguages_.add(index, value);
-            onChanged();
-          } else {
-            detectedLanguagesBuilder_.addMessage(index, value);
-          }
-          return this;
-        }
-        /**
-         *
-         *
-         * 
-         * A list of detected languages together with confidence.
-         * 

+         * bytes data = 4;
          *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
-         * 
+         * @return The data.
          */
-        public Builder addDetectedLanguages(
-            com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
-                builderForValue) {
-          if (detectedLanguagesBuilder_ == null) {
-            ensureDetectedLanguagesIsMutable();
-            detectedLanguages_.add(builderForValue.build());
-            onChanged();
-          } else {
-            detectedLanguagesBuilder_.addMessage(builderForValue.build());
-          }
-          return this;
+        @java.lang.Override
+        public com.google.protobuf.ByteString getData() {
+          return data_;
         }
         /**
          *
          *
          * 
-         * A list of detected languages together with confidence.
+         * The matrix data.
          * 

          *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
-         * 
-         */
-        public Builder addDetectedLanguages(
-            int index,
-            com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
-                builderForValue) {
-          if (detectedLanguagesBuilder_ == null) {
-            ensureDetectedLanguagesIsMutable();
-            detectedLanguages_.add(index, builderForValue.build());
-            onChanged();
-          } else {
-            detectedLanguagesBuilder_.addMessage(index, builderForValue.build());
-          }
-          return this;
-        }
-        /**
-         *
-         *
-         * 
-         * A list of detected languages together with confidence.
-         * 

+         * bytes data = 4;
          *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
-         * 
+         * @param value The data to set.
+         * @return This builder for chaining.
          */
-        public Builder addAllDetectedLanguages(
-            java.lang.Iterable<
-                    ? extends com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage>
-                values) {
-          if (detectedLanguagesBuilder_ == null) {
-            ensureDetectedLanguagesIsMutable();
-            com.google.protobuf.AbstractMessageLite.Builder.addAll(values, detectedLanguages_);
-            onChanged();
-          } else {
-            detectedLanguagesBuilder_.addAllMessages(values);
+        public Builder setData(com.google.protobuf.ByteString value) {
+          if (value == null) {
+            throw new NullPointerException();
           }
+          data_ = value;
+          bitField0_ |= 0x00000008;
+          onChanged();
           return this;
         }
         /**
          *
          *
          * 
-         * A list of detected languages together with confidence.
+         * The matrix data.
          * 

          *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
-         * 
-         */
-        public Builder clearDetectedLanguages() {
-          if (detectedLanguagesBuilder_ == null) {
-            detectedLanguages_ = java.util.Collections.emptyList();
-            bitField0_ = (bitField0_ & ~0x00000002);
-            onChanged();
-          } else {
-            detectedLanguagesBuilder_.clear();
-          }
-          return this;
-        }
-        /**
-         *
-         *
-         * 
-         * A list of detected languages together with confidence.
-         * 

+         * bytes data = 4;
          *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
-         * 
+         * @return This builder for chaining.
          */
-        public Builder removeDetectedLanguages(int index) {
-          if (detectedLanguagesBuilder_ == null) {
-            ensureDetectedLanguagesIsMutable();
-            detectedLanguages_.remove(index);
-            onChanged();
-          } else {
-            detectedLanguagesBuilder_.remove(index);
-          }
+        public Builder clearData() {
+          bitField0_ = (bitField0_ & ~0x00000008);
+          data_ = getDefaultInstance().getData();
+          onChanged();
           return this;
         }
-        /**
-         *
-         *
-         * 
-         * A list of detected languages together with confidence.
-         * 

-         *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
-         * 
-         */
-        public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
-            getDetectedLanguagesBuilder(int index) {
-          return getDetectedLanguagesFieldBuilder().getBuilder(index);
-        }
-        /**
-         *
-         *
-         * 
-         * A list of detected languages together with confidence.
-         * 

-         *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
-         * 
-         */
-        public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder
-            getDetectedLanguagesOrBuilder(int index) {
-          if (detectedLanguagesBuilder_ == null) {
-            return detectedLanguages_.get(index);
-          } else {
-            return detectedLanguagesBuilder_.getMessageOrBuilder(index);
-          }
-        }
-        /**
-         *
-         *
-         * 
-         * A list of detected languages together with confidence.
-         * 

-         *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
-         * 
-         */
-        public java.util.List<
-                ? extends
-                    com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>
-            getDetectedLanguagesOrBuilderList() {
-          if (detectedLanguagesBuilder_ != null) {
-            return detectedLanguagesBuilder_.getMessageOrBuilderList();
-          } else {
-            return java.util.Collections.unmodifiableList(detectedLanguages_);
-          }
-        }
-        /**
-         *
-         *
-         * 
-         * A list of detected languages together with confidence.
-         * 

-         *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
-         * 
-         */
-        public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
-            addDetectedLanguagesBuilder() {
-          return getDetectedLanguagesFieldBuilder()
-              .addBuilder(
-                  com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage
-                      .getDefaultInstance());
-        }
-        /**
-         *
-         *
-         * 
-         * A list of detected languages together with confidence.
-         * 

-         *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
-         * 
-         */
-        public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
-            addDetectedLanguagesBuilder(int index) {
-          return getDetectedLanguagesFieldBuilder()
-              .addBuilder(
-                  index,
-                  com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage
-                      .getDefaultInstance());
-        }
-        /**
-         *
-         *
-         * 
-         * A list of detected languages together with confidence.
-         * 

-         *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
-         * 
-         */
-        public java.util.List<
-                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder>
-            getDetectedLanguagesBuilderList() {
-          return getDetectedLanguagesFieldBuilder().getBuilderList();
-        }
-
-        private com.google.protobuf.RepeatedFieldBuilderV3<
-                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage,
-                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder,
-                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>
-            getDetectedLanguagesFieldBuilder() {
-          if (detectedLanguagesBuilder_ == null) {
-            detectedLanguagesBuilder_ =
-                new com.google.protobuf.RepeatedFieldBuilderV3<
-                    com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage,
-                    com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder,
-                    com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>(
-                    detectedLanguages_,
-                    ((bitField0_ & 0x00000002) != 0),
-                    getParentForChildren(),
-                    isClean());
-            detectedLanguages_ = null;
-          }
-          return detectedLanguagesBuilder_;
-        }
 
         @java.lang.Override
         public final Builder setUnknownFields(
@@ -9661,24 +8933,25 @@ public final Builder mergeUnknownFields(
           return super.mergeUnknownFields(unknownFields);
         }
 
-        // @@protoc_insertion_point(builder_scope:google.cloud.documentai.v1beta2.Document.Page.Block)
+        // @@protoc_insertion_point(builder_scope:google.cloud.documentai.v1beta2.Document.Page.Matrix)
       }
 
-      // @@protoc_insertion_point(class_scope:google.cloud.documentai.v1beta2.Document.Page.Block)
-      private static final com.google.cloud.documentai.v1beta2.Document.Page.Block DEFAULT_INSTANCE;
+      // @@protoc_insertion_point(class_scope:google.cloud.documentai.v1beta2.Document.Page.Matrix)
+      private static final com.google.cloud.documentai.v1beta2.Document.Page.Matrix
+          DEFAULT_INSTANCE;
 
       static {
-        DEFAULT_INSTANCE = new com.google.cloud.documentai.v1beta2.Document.Page.Block();
+        DEFAULT_INSTANCE = new com.google.cloud.documentai.v1beta2.Document.Page.Matrix();
       }
 
-      public static com.google.cloud.documentai.v1beta2.Document.Page.Block getDefaultInstance() {
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Matrix getDefaultInstance() {
         return DEFAULT_INSTANCE;
       }
 
-      private static final com.google.protobuf.Parser PARSER =
-          new com.google.protobuf.AbstractParser() {
+      private static final com.google.protobuf.Parser PARSER =
+          new com.google.protobuf.AbstractParser() {
             @java.lang.Override
-            public Block parsePartialFrom(
+            public Matrix parsePartialFrom(
                 com.google.protobuf.CodedInputStream input,
                 com.google.protobuf.ExtensionRegistryLite extensionRegistry)
                 throws com.google.protobuf.InvalidProtocolBufferException {
@@ -9698,306 +8971,573 @@ public Block parsePartialFrom(
             }
           };
 
-      public static com.google.protobuf.Parser parser() {
+      public static com.google.protobuf.Parser parser() {
         return PARSER;
       }
 
       @java.lang.Override
-      public com.google.protobuf.Parser getParserForType() {
+      public com.google.protobuf.Parser getParserForType() {
         return PARSER;
       }
 
       @java.lang.Override
-      public com.google.cloud.documentai.v1beta2.Document.Page.Block getDefaultInstanceForType() {
+      public com.google.cloud.documentai.v1beta2.Document.Page.Matrix getDefaultInstanceForType() {
         return DEFAULT_INSTANCE;
       }
     }
 
-    public interface ParagraphOrBuilder
+    public interface LayoutOrBuilder
         extends
-        // @@protoc_insertion_point(interface_extends:google.cloud.documentai.v1beta2.Document.Page.Paragraph)
+        // @@protoc_insertion_point(interface_extends:google.cloud.documentai.v1beta2.Document.Page.Layout)
         com.google.protobuf.MessageOrBuilder {
 
       /**
        *
        *
        * 
-       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [Paragraph][google.cloud.documentai.v1beta2.Document.Page.Paragraph].
+       * Text anchor indexing into the
+       * [Document.text][google.cloud.documentai.v1beta2.Document.text].
        * 

        *
-       * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+       * .google.cloud.documentai.v1beta2.Document.TextAnchor text_anchor = 1;
        *
-       * @return Whether the layout field is set.
+       * @return Whether the textAnchor field is set.
        */
-      boolean hasLayout();
+      boolean hasTextAnchor();
       /**
        *
        *
        * 
-       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [Paragraph][google.cloud.documentai.v1beta2.Document.Page.Paragraph].
+       * Text anchor indexing into the
+       * [Document.text][google.cloud.documentai.v1beta2.Document.text].
        * 

        *
-       * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+       * .google.cloud.documentai.v1beta2.Document.TextAnchor text_anchor = 1;
        *
-       * @return The layout.
+       * @return The textAnchor.
        */
-      com.google.cloud.documentai.v1beta2.Document.Page.Layout getLayout();
+      com.google.cloud.documentai.v1beta2.Document.TextAnchor getTextAnchor();
       /**
        *
        *
        * 
-       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [Paragraph][google.cloud.documentai.v1beta2.Document.Page.Paragraph].
+       * Text anchor indexing into the
+       * [Document.text][google.cloud.documentai.v1beta2.Document.text].
        * 

        *
-       * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+       * .google.cloud.documentai.v1beta2.Document.TextAnchor text_anchor = 1;
        */
-      com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder getLayoutOrBuilder();
+      com.google.cloud.documentai.v1beta2.Document.TextAnchorOrBuilder getTextAnchorOrBuilder();
 
       /**
        *
        *
        * 
-       * A list of detected languages together with confidence.
+       * Confidence of the current
+       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] within
+       * context of the object this layout is for. e.g. confidence can be for a
+       * single token, a table, a visual element, etc. depending on context.
+       * Range `[0, 1]`.
        * 

        *
-       * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
-       * 
+       * float confidence = 2;
+       *
+       * @return The confidence.
        */
-      java.util.List
-          getDetectedLanguagesList();
+      float getConfidence();
+
       /**
        *
        *
        * 
-       * A list of detected languages together with confidence.
+       * The bounding polygon for the
+       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout].
        * 

        *
-       * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
-       * 
+       * .google.cloud.documentai.v1beta2.BoundingPoly bounding_poly = 3;
+       *
+       * @return Whether the boundingPoly field is set.
        */
-      com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage getDetectedLanguages(
-          int index);
+      boolean hasBoundingPoly();
       /**
        *
        *
        * 
-       * A list of detected languages together with confidence.
+       * The bounding polygon for the
+       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout].
        * 

        *
-       * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
-       * 
+       * .google.cloud.documentai.v1beta2.BoundingPoly bounding_poly = 3;
+       *
+       * @return The boundingPoly.
        */
-      int getDetectedLanguagesCount();
+      com.google.cloud.documentai.v1beta2.BoundingPoly getBoundingPoly();
       /**
        *
        *
        * 
-       * A list of detected languages together with confidence.
+       * The bounding polygon for the
+       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout].
        * 

        *
-       * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
-       * 
+       * .google.cloud.documentai.v1beta2.BoundingPoly bounding_poly = 3;
        */
-      java.util.List<
-              ? extends com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>
-          getDetectedLanguagesOrBuilderList();
+      com.google.cloud.documentai.v1beta2.BoundingPolyOrBuilder getBoundingPolyOrBuilder();
+
       /**
        *
        *
        * 
-       * A list of detected languages together with confidence.
+       * Detected orientation for the
+       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout].
        * 

        *
-       * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
+       * .google.cloud.documentai.v1beta2.Document.Page.Layout.Orientation orientation = 4;
        * 
+       *
+       * @return The enum numeric value on the wire for orientation.
        */
-      com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder
-          getDetectedLanguagesOrBuilder(int index);
+      int getOrientationValue();
+      /**
+       *
+       *
+       * 
+       * Detected orientation for the
+       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout].
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Page.Layout.Orientation orientation = 4;
+       * 
+       *
+       * @return The orientation.
+       */
+      com.google.cloud.documentai.v1beta2.Document.Page.Layout.Orientation getOrientation();
     }
     /**
      *
      *
      * 
-     * A collection of lines that a human would perceive as a paragraph.
+     * Visual element describing a layout unit on a page.
      * 

      *
-     * Protobuf type {@code google.cloud.documentai.v1beta2.Document.Page.Paragraph}
+     * Protobuf type {@code google.cloud.documentai.v1beta2.Document.Page.Layout}
      */
-    public static final class Paragraph extends com.google.protobuf.GeneratedMessageV3
+    public static final class Layout extends com.google.protobuf.GeneratedMessageV3
         implements
-        // @@protoc_insertion_point(message_implements:google.cloud.documentai.v1beta2.Document.Page.Paragraph)
-        ParagraphOrBuilder {
+        // @@protoc_insertion_point(message_implements:google.cloud.documentai.v1beta2.Document.Page.Layout)
+        LayoutOrBuilder {
       private static final long serialVersionUID = 0L;
-      // Use Paragraph.newBuilder() to construct.
-      private Paragraph(com.google.protobuf.GeneratedMessageV3.Builder builder) {
+      // Use Layout.newBuilder() to construct.
+      private Layout(com.google.protobuf.GeneratedMessageV3.Builder builder) {
         super(builder);
       }
 
-      private Paragraph() {
-        detectedLanguages_ = java.util.Collections.emptyList();
+      private Layout() {
+        orientation_ = 0;
       }
 
       @java.lang.Override
       @SuppressWarnings({"unused"})
       protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
-        return new Paragraph();
+        return new Layout();
       }
 
       public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
         return com.google.cloud.documentai.v1beta2.DocumentProto
-            .internal_static_google_cloud_documentai_v1beta2_Document_Page_Paragraph_descriptor;
+            .internal_static_google_cloud_documentai_v1beta2_Document_Page_Layout_descriptor;
       }
 
       @java.lang.Override
       protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
           internalGetFieldAccessorTable() {
         return com.google.cloud.documentai.v1beta2.DocumentProto
-            .internal_static_google_cloud_documentai_v1beta2_Document_Page_Paragraph_fieldAccessorTable
+            .internal_static_google_cloud_documentai_v1beta2_Document_Page_Layout_fieldAccessorTable
             .ensureFieldAccessorsInitialized(
-                com.google.cloud.documentai.v1beta2.Document.Page.Paragraph.class,
-                com.google.cloud.documentai.v1beta2.Document.Page.Paragraph.Builder.class);
+                com.google.cloud.documentai.v1beta2.Document.Page.Layout.class,
+                com.google.cloud.documentai.v1beta2.Document.Page.Layout.Builder.class);
       }
 
-      public static final int LAYOUT_FIELD_NUMBER = 1;
-      private com.google.cloud.documentai.v1beta2.Document.Page.Layout layout_;
       /**
        *
        *
        * 
-       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [Paragraph][google.cloud.documentai.v1beta2.Document.Page.Paragraph].
+       * Detected human reading orientation.
        * 

        *
-       * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+       * Protobuf enum {@code google.cloud.documentai.v1beta2.Document.Page.Layout.Orientation}
+       */
+      public enum Orientation implements com.google.protobuf.ProtocolMessageEnum {
+        /**
+         *
+         *
+         * 
+         * Unspecified orientation.
+         * 

+         *
+         * ORIENTATION_UNSPECIFIED = 0;
+         */
+        ORIENTATION_UNSPECIFIED(0),
+        /**
+         *
+         *
+         * 
+         * Orientation is aligned with page up.
+         * 

+         *
+         * PAGE_UP = 1;
+         */
+        PAGE_UP(1),
+        /**
+         *
+         *
+         * 
+         * Orientation is aligned with page right.
+         * Turn the head 90 degrees clockwise from upright to read.
+         * 

+         *
+         * PAGE_RIGHT = 2;
+         */
+        PAGE_RIGHT(2),
+        /**
+         *
+         *
+         * 
+         * Orientation is aligned with page down.
+         * Turn the head 180 degrees from upright to read.
+         * 

+         *
+         * PAGE_DOWN = 3;
+         */
+        PAGE_DOWN(3),
+        /**
+         *
+         *
+         * 
+         * Orientation is aligned with page left.
+         * Turn the head 90 degrees counterclockwise from upright to read.
+         * 

+         *
+         * PAGE_LEFT = 4;
+         */
+        PAGE_LEFT(4),
+        UNRECOGNIZED(-1),
+        ;
+
+        /**
+         *
+         *
+         * 
+         * Unspecified orientation.
+         * 

+         *
+         * ORIENTATION_UNSPECIFIED = 0;
+         */
+        public static final int ORIENTATION_UNSPECIFIED_VALUE = 0;
+        /**
+         *
+         *
+         * 
+         * Orientation is aligned with page up.
+         * 

+         *
+         * PAGE_UP = 1;
+         */
+        public static final int PAGE_UP_VALUE = 1;
+        /**
+         *
+         *
+         * 
+         * Orientation is aligned with page right.
+         * Turn the head 90 degrees clockwise from upright to read.
+         * 

+         *
+         * PAGE_RIGHT = 2;
+         */
+        public static final int PAGE_RIGHT_VALUE = 2;
+        /**
+         *
+         *
+         * 
+         * Orientation is aligned with page down.
+         * Turn the head 180 degrees from upright to read.
+         * 

+         *
+         * PAGE_DOWN = 3;
+         */
+        public static final int PAGE_DOWN_VALUE = 3;
+        /**
+         *
+         *
+         * 
+         * Orientation is aligned with page left.
+         * Turn the head 90 degrees counterclockwise from upright to read.
+         * 

+         *
+         * PAGE_LEFT = 4;
+         */
+        public static final int PAGE_LEFT_VALUE = 4;
+
+        public final int getNumber() {
+          if (this == UNRECOGNIZED) {
+            throw new java.lang.IllegalArgumentException(
+                "Can't get the number of an unknown enum value.");
+          }
+          return value;
+        }
+
+        /**
+         * @param value The numeric wire value of the corresponding enum entry.
+         * @return The enum associated with the given numeric wire value.
+         * @deprecated Use {@link #forNumber(int)} instead.
+         */
+        @java.lang.Deprecated
+        public static Orientation valueOf(int value) {
+          return forNumber(value);
+        }
+
+        /**
+         * @param value The numeric wire value of the corresponding enum entry.
+         * @return The enum associated with the given numeric wire value.
+         */
+        public static Orientation forNumber(int value) {
+          switch (value) {
+            case 0:
+              return ORIENTATION_UNSPECIFIED;
+            case 1:
+              return PAGE_UP;
+            case 2:
+              return PAGE_RIGHT;
+            case 3:
+              return PAGE_DOWN;
+            case 4:
+              return PAGE_LEFT;
+            default:
+              return null;
+          }
+        }
+
+        public static com.google.protobuf.Internal.EnumLiteMap internalGetValueMap() {
+          return internalValueMap;
+        }
+
+        private static final com.google.protobuf.Internal.EnumLiteMap
+            internalValueMap =
+                new com.google.protobuf.Internal.EnumLiteMap() {
+                  public Orientation findValueByNumber(int number) {
+                    return Orientation.forNumber(number);
+                  }
+                };
+
+        public final com.google.protobuf.Descriptors.EnumValueDescriptor getValueDescriptor() {
+          if (this == UNRECOGNIZED) {
+            throw new java.lang.IllegalStateException(
+                "Can't get the descriptor of an unrecognized enum value.");
+          }
+          return getDescriptor().getValues().get(ordinal());
+        }
+
+        public final com.google.protobuf.Descriptors.EnumDescriptor getDescriptorForType() {
+          return getDescriptor();
+        }
+
+        public static final com.google.protobuf.Descriptors.EnumDescriptor getDescriptor() {
+          return com.google.cloud.documentai.v1beta2.Document.Page.Layout.getDescriptor()
+              .getEnumTypes()
+              .get(0);
+        }
+
+        private static final Orientation[] VALUES = values();
+
+        public static Orientation valueOf(
+            com.google.protobuf.Descriptors.EnumValueDescriptor desc) {
+          if (desc.getType() != getDescriptor()) {
+            throw new java.lang.IllegalArgumentException(
+                "EnumValueDescriptor is not for this type.");
+          }
+          if (desc.getIndex() == -1) {
+            return UNRECOGNIZED;
+          }
+          return VALUES[desc.getIndex()];
+        }
+
+        private final int value;
+
+        private Orientation(int value) {
+          this.value = value;
+        }
+
+        // @@protoc_insertion_point(enum_scope:google.cloud.documentai.v1beta2.Document.Page.Layout.Orientation)
+      }
+
+      public static final int TEXT_ANCHOR_FIELD_NUMBER = 1;
+      private com.google.cloud.documentai.v1beta2.Document.TextAnchor textAnchor_;
+      /**
        *
-       * @return Whether the layout field is set.
+       *
+       * 
+       * Text anchor indexing into the
+       * [Document.text][google.cloud.documentai.v1beta2.Document.text].
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.TextAnchor text_anchor = 1;
+       *
+       * @return Whether the textAnchor field is set.
        */
       @java.lang.Override
-      public boolean hasLayout() {
-        return layout_ != null;
+      public boolean hasTextAnchor() {
+        return textAnchor_ != null;
       }
       /**
        *
        *
        * 
-       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [Paragraph][google.cloud.documentai.v1beta2.Document.Page.Paragraph].
+       * Text anchor indexing into the
+       * [Document.text][google.cloud.documentai.v1beta2.Document.text].
        * 

        *
-       * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+       * .google.cloud.documentai.v1beta2.Document.TextAnchor text_anchor = 1;
        *
-       * @return The layout.
+       * @return The textAnchor.
        */
       @java.lang.Override
-      public com.google.cloud.documentai.v1beta2.Document.Page.Layout getLayout() {
-        return layout_ == null
-            ? com.google.cloud.documentai.v1beta2.Document.Page.Layout.getDefaultInstance()
-            : layout_;
+      public com.google.cloud.documentai.v1beta2.Document.TextAnchor getTextAnchor() {
+        return textAnchor_ == null
+            ? com.google.cloud.documentai.v1beta2.Document.TextAnchor.getDefaultInstance()
+            : textAnchor_;
       }
       /**
        *
        *
        * 
-       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [Paragraph][google.cloud.documentai.v1beta2.Document.Page.Paragraph].
+       * Text anchor indexing into the
+       * [Document.text][google.cloud.documentai.v1beta2.Document.text].
        * 

        *
-       * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+       * .google.cloud.documentai.v1beta2.Document.TextAnchor text_anchor = 1;
        */
       @java.lang.Override
-      public com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder
-          getLayoutOrBuilder() {
-        return layout_ == null
-            ? com.google.cloud.documentai.v1beta2.Document.Page.Layout.getDefaultInstance()
-            : layout_;
+      public com.google.cloud.documentai.v1beta2.Document.TextAnchorOrBuilder
+          getTextAnchorOrBuilder() {
+        return textAnchor_ == null
+            ? com.google.cloud.documentai.v1beta2.Document.TextAnchor.getDefaultInstance()
+            : textAnchor_;
       }
 
-      public static final int DETECTED_LANGUAGES_FIELD_NUMBER = 2;
+      public static final int CONFIDENCE_FIELD_NUMBER = 2;
+      private float confidence_ = 0F;
+      /**
+       *
+       *
+       * 
+       * Confidence of the current
+       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] within
+       * context of the object this layout is for. e.g. confidence can be for a
+       * single token, a table, a visual element, etc. depending on context.
+       * Range `[0, 1]`.
+       * 

+       *
+       * float confidence = 2;
+       *
+       * @return The confidence.
+       */
+      @java.lang.Override
+      public float getConfidence() {
+        return confidence_;
+      }
 
-      @SuppressWarnings("serial")
-      private java.util.List
-          detectedLanguages_;
+      public static final int BOUNDING_POLY_FIELD_NUMBER = 3;
+      private com.google.cloud.documentai.v1beta2.BoundingPoly boundingPoly_;
       /**
        *
        *
        * 
-       * A list of detected languages together with confidence.
+       * The bounding polygon for the
+       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout].
        * 

        *
-       * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
-       * 
+       * .google.cloud.documentai.v1beta2.BoundingPoly bounding_poly = 3;
+       *
+       * @return Whether the boundingPoly field is set.
        */
       @java.lang.Override
-      public java.util.List
-          getDetectedLanguagesList() {
-        return detectedLanguages_;
+      public boolean hasBoundingPoly() {
+        return boundingPoly_ != null;
       }
       /**
        *
        *
        * 
-       * A list of detected languages together with confidence.
+       * The bounding polygon for the
+       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout].
        * 

        *
-       * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
-       * 
+       * .google.cloud.documentai.v1beta2.BoundingPoly bounding_poly = 3;
+       *
+       * @return The boundingPoly.
        */
       @java.lang.Override
-      public java.util.List<
-              ? extends com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>
-          getDetectedLanguagesOrBuilderList() {
-        return detectedLanguages_;
+      public com.google.cloud.documentai.v1beta2.BoundingPoly getBoundingPoly() {
+        return boundingPoly_ == null
+            ? com.google.cloud.documentai.v1beta2.BoundingPoly.getDefaultInstance()
+            : boundingPoly_;
       }
       /**
        *
        *
        * 
-       * A list of detected languages together with confidence.
+       * The bounding polygon for the
+       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout].
        * 

        *
-       * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
-       * 
+       * .google.cloud.documentai.v1beta2.BoundingPoly bounding_poly = 3;
        */
       @java.lang.Override
-      public int getDetectedLanguagesCount() {
-        return detectedLanguages_.size();
+      public com.google.cloud.documentai.v1beta2.BoundingPolyOrBuilder getBoundingPolyOrBuilder() {
+        return boundingPoly_ == null
+            ? com.google.cloud.documentai.v1beta2.BoundingPoly.getDefaultInstance()
+            : boundingPoly_;
       }
+
+      public static final int ORIENTATION_FIELD_NUMBER = 4;
+      private int orientation_ = 0;
       /**
        *
        *
        * 
-       * A list of detected languages together with confidence.
+       * Detected orientation for the
+       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout].
        * 

        *
-       * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
+       * .google.cloud.documentai.v1beta2.Document.Page.Layout.Orientation orientation = 4;
        * 
+       *
+       * @return The enum numeric value on the wire for orientation.
        */
       @java.lang.Override
-      public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage
-          getDetectedLanguages(int index) {
-        return detectedLanguages_.get(index);
+      public int getOrientationValue() {
+        return orientation_;
       }
       /**
        *
        *
        * 
-       * A list of detected languages together with confidence.
+       * Detected orientation for the
+       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout].
        * 

        *
-       * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
+       * .google.cloud.documentai.v1beta2.Document.Page.Layout.Orientation orientation = 4;
        * 
+       *
+       * @return The orientation.
        */
       @java.lang.Override
-      public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder
-          getDetectedLanguagesOrBuilder(int index) {
-        return detectedLanguages_.get(index);
+      public com.google.cloud.documentai.v1beta2.Document.Page.Layout.Orientation getOrientation() {
+        com.google.cloud.documentai.v1beta2.Document.Page.Layout.Orientation result =
+            com.google.cloud.documentai.v1beta2.Document.Page.Layout.Orientation.forNumber(
+                orientation_);
+        return result == null
+            ? com.google.cloud.documentai.v1beta2.Document.Page.Layout.Orientation.UNRECOGNIZED
+            : result;
       }
 
       private byte memoizedIsInitialized = -1;
@@ -10014,11 +9554,20 @@ public final boolean isInitialized() {
 
       @java.lang.Override
       public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
-        if (layout_ != null) {
-          output.writeMessage(1, getLayout());
+        if (textAnchor_ != null) {
+          output.writeMessage(1, getTextAnchor());
         }
-        for (int i = 0; i < detectedLanguages_.size(); i++) {
-          output.writeMessage(2, detectedLanguages_.get(i));
+        if (java.lang.Float.floatToRawIntBits(confidence_) != 0) {
+          output.writeFloat(2, confidence_);
+        }
+        if (boundingPoly_ != null) {
+          output.writeMessage(3, getBoundingPoly());
+        }
+        if (orientation_
+            != com.google.cloud.documentai.v1beta2.Document.Page.Layout.Orientation
+                .ORIENTATION_UNSPECIFIED
+                .getNumber()) {
+          output.writeEnum(4, orientation_);
         }
         getUnknownFields().writeTo(output);
       }
@@ -10029,13 +9578,20 @@ public int getSerializedSize() {
         if (size != -1) return size;
 
         size = 0;
-        if (layout_ != null) {
-          size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, getLayout());
+        if (textAnchor_ != null) {
+          size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, getTextAnchor());
         }
-        for (int i = 0; i < detectedLanguages_.size(); i++) {
-          size +=
-              com.google.protobuf.CodedOutputStream.computeMessageSize(
-                  2, detectedLanguages_.get(i));
+        if (java.lang.Float.floatToRawIntBits(confidence_) != 0) {
+          size += com.google.protobuf.CodedOutputStream.computeFloatSize(2, confidence_);
+        }
+        if (boundingPoly_ != null) {
+          size += com.google.protobuf.CodedOutputStream.computeMessageSize(3, getBoundingPoly());
+        }
+        if (orientation_
+            != com.google.cloud.documentai.v1beta2.Document.Page.Layout.Orientation
+                .ORIENTATION_UNSPECIFIED
+                .getNumber()) {
+          size += com.google.protobuf.CodedOutputStream.computeEnumSize(4, orientation_);
         }
         size += getUnknownFields().getSerializedSize();
         memoizedSize = size;
@@ -10047,17 +9603,23 @@ public boolean equals(final java.lang.Object obj) {
         if (obj == this) {
           return true;
         }
-        if (!(obj instanceof com.google.cloud.documentai.v1beta2.Document.Page.Paragraph)) {
+        if (!(obj instanceof com.google.cloud.documentai.v1beta2.Document.Page.Layout)) {
           return super.equals(obj);
         }
-        com.google.cloud.documentai.v1beta2.Document.Page.Paragraph other =
-            (com.google.cloud.documentai.v1beta2.Document.Page.Paragraph) obj;
+        com.google.cloud.documentai.v1beta2.Document.Page.Layout other =
+            (com.google.cloud.documentai.v1beta2.Document.Page.Layout) obj;
 
-        if (hasLayout() != other.hasLayout()) return false;
-        if (hasLayout()) {
-          if (!getLayout().equals(other.getLayout())) return false;
+        if (hasTextAnchor() != other.hasTextAnchor()) return false;
+        if (hasTextAnchor()) {
+          if (!getTextAnchor().equals(other.getTextAnchor())) return false;
         }
-        if (!getDetectedLanguagesList().equals(other.getDetectedLanguagesList())) return false;
+        if (java.lang.Float.floatToIntBits(getConfidence())
+            != java.lang.Float.floatToIntBits(other.getConfidence())) return false;
+        if (hasBoundingPoly() != other.hasBoundingPoly()) return false;
+        if (hasBoundingPoly()) {
+          if (!getBoundingPoly().equals(other.getBoundingPoly())) return false;
+        }
+        if (orientation_ != other.orientation_) return false;
         if (!getUnknownFields().equals(other.getUnknownFields())) return false;
         return true;
       }
@@ -10069,84 +9631,88 @@ public int hashCode() {
         }
         int hash = 41;
         hash = (19 * hash) + getDescriptor().hashCode();
-        if (hasLayout()) {
-          hash = (37 * hash) + LAYOUT_FIELD_NUMBER;
-          hash = (53 * hash) + getLayout().hashCode();
+        if (hasTextAnchor()) {
+          hash = (37 * hash) + TEXT_ANCHOR_FIELD_NUMBER;
+          hash = (53 * hash) + getTextAnchor().hashCode();
         }
-        if (getDetectedLanguagesCount() > 0) {
-          hash = (37 * hash) + DETECTED_LANGUAGES_FIELD_NUMBER;
-          hash = (53 * hash) + getDetectedLanguagesList().hashCode();
+        hash = (37 * hash) + CONFIDENCE_FIELD_NUMBER;
+        hash = (53 * hash) + java.lang.Float.floatToIntBits(getConfidence());
+        if (hasBoundingPoly()) {
+          hash = (37 * hash) + BOUNDING_POLY_FIELD_NUMBER;
+          hash = (53 * hash) + getBoundingPoly().hashCode();
         }
+        hash = (37 * hash) + ORIENTATION_FIELD_NUMBER;
+        hash = (53 * hash) + orientation_;
         hash = (29 * hash) + getUnknownFields().hashCode();
         memoizedHashCode = hash;
         return hash;
       }
 
-      public static com.google.cloud.documentai.v1beta2.Document.Page.Paragraph parseFrom(
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Layout parseFrom(
           java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
         return PARSER.parseFrom(data);
       }
 
-      public static com.google.cloud.documentai.v1beta2.Document.Page.Paragraph parseFrom(
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Layout parseFrom(
           java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws com.google.protobuf.InvalidProtocolBufferException {
         return PARSER.parseFrom(data, extensionRegistry);
       }
 
-      public static com.google.cloud.documentai.v1beta2.Document.Page.Paragraph parseFrom(
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Layout parseFrom(
           com.google.protobuf.ByteString data)
           throws com.google.protobuf.InvalidProtocolBufferException {
         return PARSER.parseFrom(data);
       }
 
-      public static com.google.cloud.documentai.v1beta2.Document.Page.Paragraph parseFrom(
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Layout parseFrom(
           com.google.protobuf.ByteString data,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws com.google.protobuf.InvalidProtocolBufferException {
         return PARSER.parseFrom(data, extensionRegistry);
       }
 
-      public static com.google.cloud.documentai.v1beta2.Document.Page.Paragraph parseFrom(
-          byte[] data) throws com.google.protobuf.InvalidProtocolBufferException {
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Layout parseFrom(byte[] data)
+          throws com.google.protobuf.InvalidProtocolBufferException {
         return PARSER.parseFrom(data);
       }
 
-      public static com.google.cloud.documentai.v1beta2.Document.Page.Paragraph parseFrom(
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Layout parseFrom(
           byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws com.google.protobuf.InvalidProtocolBufferException {
         return PARSER.parseFrom(data, extensionRegistry);
       }
 
-      public static com.google.cloud.documentai.v1beta2.Document.Page.Paragraph parseFrom(
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Layout parseFrom(
           java.io.InputStream input) throws java.io.IOException {
         return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
       }
 
-      public static com.google.cloud.documentai.v1beta2.Document.Page.Paragraph parseFrom(
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Layout parseFrom(
           java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws java.io.IOException {
         return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
             PARSER, input, extensionRegistry);
       }
 
-      public static com.google.cloud.documentai.v1beta2.Document.Page.Paragraph parseDelimitedFrom(
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Layout parseDelimitedFrom(
           java.io.InputStream input) throws java.io.IOException {
         return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
       }
 
-      public static com.google.cloud.documentai.v1beta2.Document.Page.Paragraph parseDelimitedFrom(
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Layout parseDelimitedFrom(
           java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws java.io.IOException {
         return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
             PARSER, input, extensionRegistry);
       }
 
-      public static com.google.cloud.documentai.v1beta2.Document.Page.Paragraph parseFrom(
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Layout parseFrom(
           com.google.protobuf.CodedInputStream input) throws java.io.IOException {
         return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
       }
 
-      public static com.google.cloud.documentai.v1beta2.Document.Page.Paragraph parseFrom(
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Layout parseFrom(
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws java.io.IOException {
@@ -10164,7 +9730,7 @@ public static Builder newBuilder() {
       }
 
       public static Builder newBuilder(
-          com.google.cloud.documentai.v1beta2.Document.Page.Paragraph prototype) {
+          com.google.cloud.documentai.v1beta2.Document.Page.Layout prototype) {
         return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
       }
 
@@ -10183,32 +9749,32 @@ protected Builder newBuilderForType(
        *
        *
        * 
-       * A collection of lines that a human would perceive as a paragraph.
+       * Visual element describing a layout unit on a page.
        * 

        *
-       * Protobuf type {@code google.cloud.documentai.v1beta2.Document.Page.Paragraph}
+       * Protobuf type {@code google.cloud.documentai.v1beta2.Document.Page.Layout}
        */
       public static final class Builder
           extends com.google.protobuf.GeneratedMessageV3.Builder
           implements
-          // @@protoc_insertion_point(builder_implements:google.cloud.documentai.v1beta2.Document.Page.Paragraph)
-          com.google.cloud.documentai.v1beta2.Document.Page.ParagraphOrBuilder {
+          // @@protoc_insertion_point(builder_implements:google.cloud.documentai.v1beta2.Document.Page.Layout)
+          com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder {
         public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
           return com.google.cloud.documentai.v1beta2.DocumentProto
-              .internal_static_google_cloud_documentai_v1beta2_Document_Page_Paragraph_descriptor;
+              .internal_static_google_cloud_documentai_v1beta2_Document_Page_Layout_descriptor;
         }
 
         @java.lang.Override
         protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
             internalGetFieldAccessorTable() {
           return com.google.cloud.documentai.v1beta2.DocumentProto
-              .internal_static_google_cloud_documentai_v1beta2_Document_Page_Paragraph_fieldAccessorTable
+              .internal_static_google_cloud_documentai_v1beta2_Document_Page_Layout_fieldAccessorTable
               .ensureFieldAccessorsInitialized(
-                  com.google.cloud.documentai.v1beta2.Document.Page.Paragraph.class,
-                  com.google.cloud.documentai.v1beta2.Document.Page.Paragraph.Builder.class);
+                  com.google.cloud.documentai.v1beta2.Document.Page.Layout.class,
+                  com.google.cloud.documentai.v1beta2.Document.Page.Layout.Builder.class);
         }
 
-        // Construct using com.google.cloud.documentai.v1beta2.Document.Page.Paragraph.newBuilder()
+        // Construct using com.google.cloud.documentai.v1beta2.Document.Page.Layout.newBuilder()
         private Builder() {}
 
         private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
@@ -10219,36 +9785,36 @@ private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
         public Builder clear() {
           super.clear();
           bitField0_ = 0;
-          layout_ = null;
-          if (layoutBuilder_ != null) {
-            layoutBuilder_.dispose();
-            layoutBuilder_ = null;
-          }
-          if (detectedLanguagesBuilder_ == null) {
-            detectedLanguages_ = java.util.Collections.emptyList();
-          } else {
-            detectedLanguages_ = null;
-            detectedLanguagesBuilder_.clear();
+          textAnchor_ = null;
+          if (textAnchorBuilder_ != null) {
+            textAnchorBuilder_.dispose();
+            textAnchorBuilder_ = null;
           }
-          bitField0_ = (bitField0_ & ~0x00000002);
+          confidence_ = 0F;
+          boundingPoly_ = null;
+          if (boundingPolyBuilder_ != null) {
+            boundingPolyBuilder_.dispose();
+            boundingPolyBuilder_ = null;
+          }
+          orientation_ = 0;
           return this;
         }
 
         @java.lang.Override
         public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
           return com.google.cloud.documentai.v1beta2.DocumentProto
-              .internal_static_google_cloud_documentai_v1beta2_Document_Page_Paragraph_descriptor;
+              .internal_static_google_cloud_documentai_v1beta2_Document_Page_Layout_descriptor;
         }
 
         @java.lang.Override
-        public com.google.cloud.documentai.v1beta2.Document.Page.Paragraph
+        public com.google.cloud.documentai.v1beta2.Document.Page.Layout
             getDefaultInstanceForType() {
-          return com.google.cloud.documentai.v1beta2.Document.Page.Paragraph.getDefaultInstance();
+          return com.google.cloud.documentai.v1beta2.Document.Page.Layout.getDefaultInstance();
         }
 
         @java.lang.Override
-        public com.google.cloud.documentai.v1beta2.Document.Page.Paragraph build() {
-          com.google.cloud.documentai.v1beta2.Document.Page.Paragraph result = buildPartial();
+        public com.google.cloud.documentai.v1beta2.Document.Page.Layout build() {
+          com.google.cloud.documentai.v1beta2.Document.Page.Layout result = buildPartial();
           if (!result.isInitialized()) {
             throw newUninitializedMessageException(result);
           }
@@ -10256,10 +9822,9 @@ public com.google.cloud.documentai.v1beta2.Document.Page.Paragraph build() {
         }
 
         @java.lang.Override
-        public com.google.cloud.documentai.v1beta2.Document.Page.Paragraph buildPartial() {
-          com.google.cloud.documentai.v1beta2.Document.Page.Paragraph result =
-              new com.google.cloud.documentai.v1beta2.Document.Page.Paragraph(this);
-          buildPartialRepeatedFields(result);
+        public com.google.cloud.documentai.v1beta2.Document.Page.Layout buildPartial() {
+          com.google.cloud.documentai.v1beta2.Document.Page.Layout result =
+              new com.google.cloud.documentai.v1beta2.Document.Page.Layout(this);
           if (bitField0_ != 0) {
             buildPartial0(result);
           }
@@ -10267,24 +9832,22 @@ public com.google.cloud.documentai.v1beta2.Document.Page.Paragraph buildPartial(
           return result;
         }
 
-        private void buildPartialRepeatedFields(
-            com.google.cloud.documentai.v1beta2.Document.Page.Paragraph result) {
-          if (detectedLanguagesBuilder_ == null) {
-            if (((bitField0_ & 0x00000002) != 0)) {
-              detectedLanguages_ = java.util.Collections.unmodifiableList(detectedLanguages_);
-              bitField0_ = (bitField0_ & ~0x00000002);
-            }
-            result.detectedLanguages_ = detectedLanguages_;
-          } else {
-            result.detectedLanguages_ = detectedLanguagesBuilder_.build();
-          }
-        }
-
         private void buildPartial0(
-            com.google.cloud.documentai.v1beta2.Document.Page.Paragraph result) {
+            com.google.cloud.documentai.v1beta2.Document.Page.Layout result) {
           int from_bitField0_ = bitField0_;
           if (((from_bitField0_ & 0x00000001) != 0)) {
-            result.layout_ = layoutBuilder_ == null ? layout_ : layoutBuilder_.build();
+            result.textAnchor_ =
+                textAnchorBuilder_ == null ? textAnchor_ : textAnchorBuilder_.build();
+          }
+          if (((from_bitField0_ & 0x00000002) != 0)) {
+            result.confidence_ = confidence_;
+          }
+          if (((from_bitField0_ & 0x00000004) != 0)) {
+            result.boundingPoly_ =
+                boundingPolyBuilder_ == null ? boundingPoly_ : boundingPolyBuilder_.build();
+          }
+          if (((from_bitField0_ & 0x00000008) != 0)) {
+            result.orientation_ = orientation_;
           }
         }
 
@@ -10325,48 +9888,29 @@ public Builder addRepeatedField(
 
         @java.lang.Override
         public Builder mergeFrom(com.google.protobuf.Message other) {
-          if (other instanceof com.google.cloud.documentai.v1beta2.Document.Page.Paragraph) {
-            return mergeFrom((com.google.cloud.documentai.v1beta2.Document.Page.Paragraph) other);
+          if (other instanceof com.google.cloud.documentai.v1beta2.Document.Page.Layout) {
+            return mergeFrom((com.google.cloud.documentai.v1beta2.Document.Page.Layout) other);
           } else {
             super.mergeFrom(other);
             return this;
           }
         }
 
-        public Builder mergeFrom(
-            com.google.cloud.documentai.v1beta2.Document.Page.Paragraph other) {
+        public Builder mergeFrom(com.google.cloud.documentai.v1beta2.Document.Page.Layout other) {
           if (other
-              == com.google.cloud.documentai.v1beta2.Document.Page.Paragraph.getDefaultInstance())
+              == com.google.cloud.documentai.v1beta2.Document.Page.Layout.getDefaultInstance())
             return this;
-          if (other.hasLayout()) {
-            mergeLayout(other.getLayout());
+          if (other.hasTextAnchor()) {
+            mergeTextAnchor(other.getTextAnchor());
           }
-          if (detectedLanguagesBuilder_ == null) {
-            if (!other.detectedLanguages_.isEmpty()) {
-              if (detectedLanguages_.isEmpty()) {
-                detectedLanguages_ = other.detectedLanguages_;
-                bitField0_ = (bitField0_ & ~0x00000002);
-              } else {
-                ensureDetectedLanguagesIsMutable();
-                detectedLanguages_.addAll(other.detectedLanguages_);
-              }
-              onChanged();
-            }
-          } else {
-            if (!other.detectedLanguages_.isEmpty()) {
-              if (detectedLanguagesBuilder_.isEmpty()) {
-                detectedLanguagesBuilder_.dispose();
-                detectedLanguagesBuilder_ = null;
-                detectedLanguages_ = other.detectedLanguages_;
-                bitField0_ = (bitField0_ & ~0x00000002);
-                detectedLanguagesBuilder_ =
-                    com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders
-                        ? getDetectedLanguagesFieldBuilder()
-                        : null;
-              } else {
-                detectedLanguagesBuilder_.addAllMessages(other.detectedLanguages_);
-              }
-            }
+          if (other.getConfidence() != 0F) {
+            setConfidence(other.getConfidence());
+          }
+          if (other.hasBoundingPoly()) {
+            mergeBoundingPoly(other.getBoundingPoly());
+          }
+          if (other.orientation_ != 0) {
+            setOrientationValue(other.getOrientationValue());
           }
           this.mergeUnknownFields(other.getUnknownFields());
           onChanged();
@@ -10396,25 +9940,29 @@ public Builder mergeFrom(
                   break;
                 case 10:
                   {
-                    input.readMessage(getLayoutFieldBuilder().getBuilder(), extensionRegistry);
+                    input.readMessage(getTextAnchorFieldBuilder().getBuilder(), extensionRegistry);
                     bitField0_ |= 0x00000001;
                     break;
                   } // case 10
-                case 18:
+                case 21:
                   {
-                    com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage m =
-                        input.readMessage(
-                            com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage
-                                .parser(),
-                            extensionRegistry);
-                    if (detectedLanguagesBuilder_ == null) {
-                      ensureDetectedLanguagesIsMutable();
-                      detectedLanguages_.add(m);
-                    } else {
-                      detectedLanguagesBuilder_.addMessage(m);
-                    }
+                    confidence_ = input.readFloat();
+                    bitField0_ |= 0x00000002;
                     break;
-                  } // case 18
+                  } // case 21
+                case 26:
+                  {
+                    input.readMessage(
+                        getBoundingPolyFieldBuilder().getBuilder(), extensionRegistry);
+                    bitField0_ |= 0x00000004;
+                    break;
+                  } // case 26
+                case 32:
+                  {
+                    orientation_ = input.readEnum();
+                    bitField0_ |= 0x00000008;
+                    break;
+                  } // case 32
                 default:
                   {
                     if (!super.parseUnknownField(input, extensionRegistry, tag)) {
@@ -10434,63 +9982,67 @@ public Builder mergeFrom(
 
         private int bitField0_;
 
-        private com.google.cloud.documentai.v1beta2.Document.Page.Layout layout_;
+        private com.google.cloud.documentai.v1beta2.Document.TextAnchor textAnchor_;
         private com.google.protobuf.SingleFieldBuilderV3<
-                com.google.cloud.documentai.v1beta2.Document.Page.Layout,
-                com.google.cloud.documentai.v1beta2.Document.Page.Layout.Builder,
-                com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder>
-            layoutBuilder_;
+                com.google.cloud.documentai.v1beta2.Document.TextAnchor,
+                com.google.cloud.documentai.v1beta2.Document.TextAnchor.Builder,
+                com.google.cloud.documentai.v1beta2.Document.TextAnchorOrBuilder>
+            textAnchorBuilder_;
         /**
          *
          *
          * 
-         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [Paragraph][google.cloud.documentai.v1beta2.Document.Page.Paragraph].
+         * Text anchor indexing into the
+         * [Document.text][google.cloud.documentai.v1beta2.Document.text].
          * 

          *
-         * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+         * .google.cloud.documentai.v1beta2.Document.TextAnchor text_anchor = 1;
          *
-         * @return Whether the layout field is set.
+         * @return Whether the textAnchor field is set.
          */
-        public boolean hasLayout() {
+        public boolean hasTextAnchor() {
           return ((bitField0_ & 0x00000001) != 0);
         }
         /**
          *
          *
          * 
-         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [Paragraph][google.cloud.documentai.v1beta2.Document.Page.Paragraph].
+         * Text anchor indexing into the
+         * [Document.text][google.cloud.documentai.v1beta2.Document.text].
          * 

          *
-         * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+         * .google.cloud.documentai.v1beta2.Document.TextAnchor text_anchor = 1;
          *
-         * @return The layout.
+         * @return The textAnchor.
          */
-        public com.google.cloud.documentai.v1beta2.Document.Page.Layout getLayout() {
-          if (layoutBuilder_ == null) {
-            return layout_ == null
-                ? com.google.cloud.documentai.v1beta2.Document.Page.Layout.getDefaultInstance()
-                : layout_;
+        public com.google.cloud.documentai.v1beta2.Document.TextAnchor getTextAnchor() {
+          if (textAnchorBuilder_ == null) {
+            return textAnchor_ == null
+                ? com.google.cloud.documentai.v1beta2.Document.TextAnchor.getDefaultInstance()
+                : textAnchor_;
           } else {
-            return layoutBuilder_.getMessage();
+            return textAnchorBuilder_.getMessage();
           }
         }
         /**
          *
          *
          * 
-         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [Paragraph][google.cloud.documentai.v1beta2.Document.Page.Paragraph].
+         * Text anchor indexing into the
+         * [Document.text][google.cloud.documentai.v1beta2.Document.text].
          * 

          *
-         * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+         * .google.cloud.documentai.v1beta2.Document.TextAnchor text_anchor = 1;
          */
-        public Builder setLayout(com.google.cloud.documentai.v1beta2.Document.Page.Layout value) {
-          if (layoutBuilder_ == null) {
+        public Builder setTextAnchor(
+            com.google.cloud.documentai.v1beta2.Document.TextAnchor value) {
+          if (textAnchorBuilder_ == null) {
             if (value == null) {
               throw new NullPointerException();
             }
-            layout_ = value;
+            textAnchor_ = value;
           } else {
-            layoutBuilder_.setMessage(value);
+            textAnchorBuilder_.setMessage(value);
           }
           bitField0_ |= 0x00000001;
           onChanged();
@@ -10500,17 +10052,18 @@ public Builder setLayout(com.google.cloud.documentai.v1beta2.Document.Page.Layou
          *
          *
          * 
-         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [Paragraph][google.cloud.documentai.v1beta2.Document.Page.Paragraph].
+         * Text anchor indexing into the
+         * [Document.text][google.cloud.documentai.v1beta2.Document.text].
          * 

          *
-         * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+         * .google.cloud.documentai.v1beta2.Document.TextAnchor text_anchor = 1;
          */
-        public Builder setLayout(
-            com.google.cloud.documentai.v1beta2.Document.Page.Layout.Builder builderForValue) {
-          if (layoutBuilder_ == null) {
-            layout_ = builderForValue.build();
+        public Builder setTextAnchor(
+            com.google.cloud.documentai.v1beta2.Document.TextAnchor.Builder builderForValue) {
+          if (textAnchorBuilder_ == null) {
+            textAnchor_ = builderForValue.build();
           } else {
-            layoutBuilder_.setMessage(builderForValue.build());
+            textAnchorBuilder_.setMessage(builderForValue.build());
           }
           bitField0_ |= 0x00000001;
           onChanged();
@@ -10520,24 +10073,26 @@ public Builder setLayout(
          *
          *
          * 
-         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [Paragraph][google.cloud.documentai.v1beta2.Document.Page.Paragraph].
+         * Text anchor indexing into the
+         * [Document.text][google.cloud.documentai.v1beta2.Document.text].
          * 

          *
-         * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+         * .google.cloud.documentai.v1beta2.Document.TextAnchor text_anchor = 1;
          */
-        public Builder mergeLayout(com.google.cloud.documentai.v1beta2.Document.Page.Layout value) {
-          if (layoutBuilder_ == null) {
+        public Builder mergeTextAnchor(
+            com.google.cloud.documentai.v1beta2.Document.TextAnchor value) {
+          if (textAnchorBuilder_ == null) {
             if (((bitField0_ & 0x00000001) != 0)
-                && layout_ != null
-                && layout_
-                    != com.google.cloud.documentai.v1beta2.Document.Page.Layout
+                && textAnchor_ != null
+                && textAnchor_
+                    != com.google.cloud.documentai.v1beta2.Document.TextAnchor
                         .getDefaultInstance()) {
-              getLayoutBuilder().mergeFrom(value);
+              getTextAnchorBuilder().mergeFrom(value);
             } else {
-              layout_ = value;
+              textAnchor_ = value;
             }
           } else {
-            layoutBuilder_.mergeFrom(value);
+            textAnchorBuilder_.mergeFrom(value);
           }
           bitField0_ |= 0x00000001;
           onChanged();
@@ -10547,17 +10102,18 @@ public Builder mergeLayout(com.google.cloud.documentai.v1beta2.Document.Page.Lay
          *
          *
          * 
-         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [Paragraph][google.cloud.documentai.v1beta2.Document.Page.Paragraph].
+         * Text anchor indexing into the
+         * [Document.text][google.cloud.documentai.v1beta2.Document.text].
          * 

          *
-         * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+         * .google.cloud.documentai.v1beta2.Document.TextAnchor text_anchor = 1;
          */
-        public Builder clearLayout() {
+        public Builder clearTextAnchor() {
           bitField0_ = (bitField0_ & ~0x00000001);
-          layout_ = null;
-          if (layoutBuilder_ != null) {
-            layoutBuilder_.dispose();
-            layoutBuilder_ = null;
+          textAnchor_ = null;
+          if (textAnchorBuilder_ != null) {
+            textAnchorBuilder_.dispose();
+            textAnchorBuilder_ = null;
           }
           onChanged();
           return this;
@@ -10566,475 +10122,428 @@ public Builder clearLayout() {
          *
          *
          * 
-         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [Paragraph][google.cloud.documentai.v1beta2.Document.Page.Paragraph].
+         * Text anchor indexing into the
+         * [Document.text][google.cloud.documentai.v1beta2.Document.text].
          * 

          *
-         * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+         * .google.cloud.documentai.v1beta2.Document.TextAnchor text_anchor = 1;
          */
-        public com.google.cloud.documentai.v1beta2.Document.Page.Layout.Builder getLayoutBuilder() {
+        public com.google.cloud.documentai.v1beta2.Document.TextAnchor.Builder
+            getTextAnchorBuilder() {
           bitField0_ |= 0x00000001;
           onChanged();
-          return getLayoutFieldBuilder().getBuilder();
+          return getTextAnchorFieldBuilder().getBuilder();
         }
         /**
          *
          *
          * 
-         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [Paragraph][google.cloud.documentai.v1beta2.Document.Page.Paragraph].
+         * Text anchor indexing into the
+         * [Document.text][google.cloud.documentai.v1beta2.Document.text].
          * 

          *
-         * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+         * .google.cloud.documentai.v1beta2.Document.TextAnchor text_anchor = 1;
          */
-        public com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder
-            getLayoutOrBuilder() {
-          if (layoutBuilder_ != null) {
-            return layoutBuilder_.getMessageOrBuilder();
+        public com.google.cloud.documentai.v1beta2.Document.TextAnchorOrBuilder
+            getTextAnchorOrBuilder() {
+          if (textAnchorBuilder_ != null) {
+            return textAnchorBuilder_.getMessageOrBuilder();
           } else {
-            return layout_ == null
-                ? com.google.cloud.documentai.v1beta2.Document.Page.Layout.getDefaultInstance()
-                : layout_;
+            return textAnchor_ == null
+                ? com.google.cloud.documentai.v1beta2.Document.TextAnchor.getDefaultInstance()
+                : textAnchor_;
           }
         }
         /**
          *
          *
          * 
-         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [Paragraph][google.cloud.documentai.v1beta2.Document.Page.Paragraph].
+         * Text anchor indexing into the
+         * [Document.text][google.cloud.documentai.v1beta2.Document.text].
          * 

          *
-         * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+         * .google.cloud.documentai.v1beta2.Document.TextAnchor text_anchor = 1;
          */
         private com.google.protobuf.SingleFieldBuilderV3<
-                com.google.cloud.documentai.v1beta2.Document.Page.Layout,
-                com.google.cloud.documentai.v1beta2.Document.Page.Layout.Builder,
-                com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder>
-            getLayoutFieldBuilder() {
-          if (layoutBuilder_ == null) {
-            layoutBuilder_ =
+                com.google.cloud.documentai.v1beta2.Document.TextAnchor,
+                com.google.cloud.documentai.v1beta2.Document.TextAnchor.Builder,
+                com.google.cloud.documentai.v1beta2.Document.TextAnchorOrBuilder>
+            getTextAnchorFieldBuilder() {
+          if (textAnchorBuilder_ == null) {
+            textAnchorBuilder_ =
                 new com.google.protobuf.SingleFieldBuilderV3<
-                    com.google.cloud.documentai.v1beta2.Document.Page.Layout,
-                    com.google.cloud.documentai.v1beta2.Document.Page.Layout.Builder,
-                    com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder>(
-                    getLayout(), getParentForChildren(), isClean());
-            layout_ = null;
-          }
-          return layoutBuilder_;
-        }
-
-        private java.util.List
-            detectedLanguages_ = java.util.Collections.emptyList();
-
-        private void ensureDetectedLanguagesIsMutable() {
-          if (!((bitField0_ & 0x00000002) != 0)) {
-            detectedLanguages_ =
-                new java.util.ArrayList<
-                    com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage>(
-                    detectedLanguages_);
-            bitField0_ |= 0x00000002;
+                    com.google.cloud.documentai.v1beta2.Document.TextAnchor,
+                    com.google.cloud.documentai.v1beta2.Document.TextAnchor.Builder,
+                    com.google.cloud.documentai.v1beta2.Document.TextAnchorOrBuilder>(
+                    getTextAnchor(), getParentForChildren(), isClean());
+            textAnchor_ = null;
           }
+          return textAnchorBuilder_;
         }
 
-        private com.google.protobuf.RepeatedFieldBuilderV3<
-                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage,
-                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder,
-                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>
-            detectedLanguagesBuilder_;
-
+        private float confidence_;
         /**
          *
          *
          * 
-         * A list of detected languages together with confidence.
+         * Confidence of the current
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] within
+         * context of the object this layout is for. e.g. confidence can be for a
+         * single token, a table, a visual element, etc. depending on context.
+         * Range `[0, 1]`.
          * 

          *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
-         * 
+         * float confidence = 2;
+         *
+         * @return The confidence.
          */
-        public java.util.List
-            getDetectedLanguagesList() {
-          if (detectedLanguagesBuilder_ == null) {
-            return java.util.Collections.unmodifiableList(detectedLanguages_);
-          } else {
-            return detectedLanguagesBuilder_.getMessageList();
-          }
+        @java.lang.Override
+        public float getConfidence() {
+          return confidence_;
         }
         /**
          *
          *
          * 
-         * A list of detected languages together with confidence.
+         * Confidence of the current
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] within
+         * context of the object this layout is for. e.g. confidence can be for a
+         * single token, a table, a visual element, etc. depending on context.
+         * Range `[0, 1]`.
          * 

          *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
-         * 
+         * float confidence = 2;
+         *
+         * @param value The confidence to set.
+         * @return This builder for chaining.
          */
-        public int getDetectedLanguagesCount() {
-          if (detectedLanguagesBuilder_ == null) {
-            return detectedLanguages_.size();
-          } else {
-            return detectedLanguagesBuilder_.getCount();
-          }
+        public Builder setConfidence(float value) {
+
+          confidence_ = value;
+          bitField0_ |= 0x00000002;
+          onChanged();
+          return this;
         }
         /**
          *
          *
          * 
-         * A list of detected languages together with confidence.
+         * Confidence of the current
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] within
+         * context of the object this layout is for. e.g. confidence can be for a
+         * single token, a table, a visual element, etc. depending on context.
+         * Range `[0, 1]`.
          * 

          *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
-         * 
+         * float confidence = 2;
+         *
+         * @return This builder for chaining.
          */
-        public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage
-            getDetectedLanguages(int index) {
-          if (detectedLanguagesBuilder_ == null) {
-            return detectedLanguages_.get(index);
-          } else {
-            return detectedLanguagesBuilder_.getMessage(index);
-          }
+        public Builder clearConfidence() {
+          bitField0_ = (bitField0_ & ~0x00000002);
+          confidence_ = 0F;
+          onChanged();
+          return this;
         }
+
+        private com.google.cloud.documentai.v1beta2.BoundingPoly boundingPoly_;
+        private com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.documentai.v1beta2.BoundingPoly,
+                com.google.cloud.documentai.v1beta2.BoundingPoly.Builder,
+                com.google.cloud.documentai.v1beta2.BoundingPolyOrBuilder>
+            boundingPolyBuilder_;
         /**
          *
          *
          * 
-         * A list of detected languages together with confidence.
+         * The bounding polygon for the
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout].
          * 

          *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
-         * 
+         * .google.cloud.documentai.v1beta2.BoundingPoly bounding_poly = 3;
+         *
+         * @return Whether the boundingPoly field is set.
          */
-        public Builder setDetectedLanguages(
-            int index, com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value) {
-          if (detectedLanguagesBuilder_ == null) {
-            if (value == null) {
-              throw new NullPointerException();
-            }
-            ensureDetectedLanguagesIsMutable();
-            detectedLanguages_.set(index, value);
-            onChanged();
-          } else {
-            detectedLanguagesBuilder_.setMessage(index, value);
-          }
-          return this;
+        public boolean hasBoundingPoly() {
+          return ((bitField0_ & 0x00000004) != 0);
         }
         /**
          *
          *
          * 
-         * A list of detected languages together with confidence.
+         * The bounding polygon for the
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout].
          * 

          *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
-         * 
+         * .google.cloud.documentai.v1beta2.BoundingPoly bounding_poly = 3;
+         *
+         * @return The boundingPoly.
          */
-        public Builder setDetectedLanguages(
-            int index,
-            com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
-                builderForValue) {
-          if (detectedLanguagesBuilder_ == null) {
-            ensureDetectedLanguagesIsMutable();
-            detectedLanguages_.set(index, builderForValue.build());
-            onChanged();
+        public com.google.cloud.documentai.v1beta2.BoundingPoly getBoundingPoly() {
+          if (boundingPolyBuilder_ == null) {
+            return boundingPoly_ == null
+                ? com.google.cloud.documentai.v1beta2.BoundingPoly.getDefaultInstance()
+                : boundingPoly_;
           } else {
-            detectedLanguagesBuilder_.setMessage(index, builderForValue.build());
+            return boundingPolyBuilder_.getMessage();
           }
-          return this;
         }
         /**
          *
          *
          * 
-         * A list of detected languages together with confidence.
+         * The bounding polygon for the
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout].
          * 

          *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
-         * 
+         * .google.cloud.documentai.v1beta2.BoundingPoly bounding_poly = 3;
          */
-        public Builder addDetectedLanguages(
-            com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value) {
-          if (detectedLanguagesBuilder_ == null) {
+        public Builder setBoundingPoly(com.google.cloud.documentai.v1beta2.BoundingPoly value) {
+          if (boundingPolyBuilder_ == null) {
             if (value == null) {
               throw new NullPointerException();
             }
-            ensureDetectedLanguagesIsMutable();
-            detectedLanguages_.add(value);
-            onChanged();
+            boundingPoly_ = value;
           } else {
-            detectedLanguagesBuilder_.addMessage(value);
+            boundingPolyBuilder_.setMessage(value);
           }
+          bitField0_ |= 0x00000004;
+          onChanged();
           return this;
         }
         /**
          *
          *
          * 
-         * A list of detected languages together with confidence.
+         * The bounding polygon for the
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout].
          * 

          *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
-         * 
+         * .google.cloud.documentai.v1beta2.BoundingPoly bounding_poly = 3;
          */
-        public Builder addDetectedLanguages(
-            int index, com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value) {
-          if (detectedLanguagesBuilder_ == null) {
-            if (value == null) {
-              throw new NullPointerException();
-            }
-            ensureDetectedLanguagesIsMutable();
-            detectedLanguages_.add(index, value);
-            onChanged();
+        public Builder setBoundingPoly(
+            com.google.cloud.documentai.v1beta2.BoundingPoly.Builder builderForValue) {
+          if (boundingPolyBuilder_ == null) {
+            boundingPoly_ = builderForValue.build();
           } else {
-            detectedLanguagesBuilder_.addMessage(index, value);
+            boundingPolyBuilder_.setMessage(builderForValue.build());
           }
+          bitField0_ |= 0x00000004;
+          onChanged();
           return this;
         }
         /**
          *
          *
          * 
-         * A list of detected languages together with confidence.
+         * The bounding polygon for the
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout].
          * 

          *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
-         * 
+         * .google.cloud.documentai.v1beta2.BoundingPoly bounding_poly = 3;
          */
-        public Builder addDetectedLanguages(
-            com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
-                builderForValue) {
-          if (detectedLanguagesBuilder_ == null) {
-            ensureDetectedLanguagesIsMutable();
-            detectedLanguages_.add(builderForValue.build());
-            onChanged();
+        public Builder mergeBoundingPoly(com.google.cloud.documentai.v1beta2.BoundingPoly value) {
+          if (boundingPolyBuilder_ == null) {
+            if (((bitField0_ & 0x00000004) != 0)
+                && boundingPoly_ != null
+                && boundingPoly_
+                    != com.google.cloud.documentai.v1beta2.BoundingPoly.getDefaultInstance()) {
+              getBoundingPolyBuilder().mergeFrom(value);
+            } else {
+              boundingPoly_ = value;
+            }
           } else {
-            detectedLanguagesBuilder_.addMessage(builderForValue.build());
+            boundingPolyBuilder_.mergeFrom(value);
           }
+          bitField0_ |= 0x00000004;
+          onChanged();
           return this;
         }
         /**
          *
          *
          * 
-         * A list of detected languages together with confidence.
+         * The bounding polygon for the
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout].
          * 

          *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
-         * 
+         * .google.cloud.documentai.v1beta2.BoundingPoly bounding_poly = 3;
          */
-        public Builder addDetectedLanguages(
-            int index,
-            com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
-                builderForValue) {
-          if (detectedLanguagesBuilder_ == null) {
-            ensureDetectedLanguagesIsMutable();
-            detectedLanguages_.add(index, builderForValue.build());
-            onChanged();
-          } else {
-            detectedLanguagesBuilder_.addMessage(index, builderForValue.build());
+        public Builder clearBoundingPoly() {
+          bitField0_ = (bitField0_ & ~0x00000004);
+          boundingPoly_ = null;
+          if (boundingPolyBuilder_ != null) {
+            boundingPolyBuilder_.dispose();
+            boundingPolyBuilder_ = null;
           }
+          onChanged();
           return this;
         }
         /**
          *
          *
          * 
-         * A list of detected languages together with confidence.
+         * The bounding polygon for the
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout].
          * 

          *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
-         * 
+         * .google.cloud.documentai.v1beta2.BoundingPoly bounding_poly = 3;
          */
-        public Builder addAllDetectedLanguages(
-            java.lang.Iterable<
-                    ? extends com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage>
-                values) {
-          if (detectedLanguagesBuilder_ == null) {
-            ensureDetectedLanguagesIsMutable();
-            com.google.protobuf.AbstractMessageLite.Builder.addAll(values, detectedLanguages_);
-            onChanged();
-          } else {
-            detectedLanguagesBuilder_.addAllMessages(values);
-          }
-          return this;
+        public com.google.cloud.documentai.v1beta2.BoundingPoly.Builder getBoundingPolyBuilder() {
+          bitField0_ |= 0x00000004;
+          onChanged();
+          return getBoundingPolyFieldBuilder().getBuilder();
         }
         /**
          *
          *
          * 
-         * A list of detected languages together with confidence.
+         * The bounding polygon for the
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout].
          * 

          *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
-         * 
+         * .google.cloud.documentai.v1beta2.BoundingPoly bounding_poly = 3;
          */
-        public Builder clearDetectedLanguages() {
-          if (detectedLanguagesBuilder_ == null) {
-            detectedLanguages_ = java.util.Collections.emptyList();
-            bitField0_ = (bitField0_ & ~0x00000002);
-            onChanged();
+        public com.google.cloud.documentai.v1beta2.BoundingPolyOrBuilder
+            getBoundingPolyOrBuilder() {
+          if (boundingPolyBuilder_ != null) {
+            return boundingPolyBuilder_.getMessageOrBuilder();
           } else {
-            detectedLanguagesBuilder_.clear();
+            return boundingPoly_ == null
+                ? com.google.cloud.documentai.v1beta2.BoundingPoly.getDefaultInstance()
+                : boundingPoly_;
           }
-          return this;
         }
         /**
          *
          *
          * 
-         * A list of detected languages together with confidence.
+         * The bounding polygon for the
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout].
          * 

          *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
-         * 
+         * .google.cloud.documentai.v1beta2.BoundingPoly bounding_poly = 3;
          */
-        public Builder removeDetectedLanguages(int index) {
-          if (detectedLanguagesBuilder_ == null) {
-            ensureDetectedLanguagesIsMutable();
-            detectedLanguages_.remove(index);
-            onChanged();
-          } else {
-            detectedLanguagesBuilder_.remove(index);
+        private com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.documentai.v1beta2.BoundingPoly,
+                com.google.cloud.documentai.v1beta2.BoundingPoly.Builder,
+                com.google.cloud.documentai.v1beta2.BoundingPolyOrBuilder>
+            getBoundingPolyFieldBuilder() {
+          if (boundingPolyBuilder_ == null) {
+            boundingPolyBuilder_ =
+                new com.google.protobuf.SingleFieldBuilderV3<
+                    com.google.cloud.documentai.v1beta2.BoundingPoly,
+                    com.google.cloud.documentai.v1beta2.BoundingPoly.Builder,
+                    com.google.cloud.documentai.v1beta2.BoundingPolyOrBuilder>(
+                    getBoundingPoly(), getParentForChildren(), isClean());
+            boundingPoly_ = null;
           }
-          return this;
+          return boundingPolyBuilder_;
         }
+
+        private int orientation_ = 0;
         /**
          *
          *
          * 
-         * A list of detected languages together with confidence.
+         * Detected orientation for the
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout].
          * 

          *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
+         * .google.cloud.documentai.v1beta2.Document.Page.Layout.Orientation orientation = 4;
          * 
-         */
-        public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
-            getDetectedLanguagesBuilder(int index) {
-          return getDetectedLanguagesFieldBuilder().getBuilder(index);
-        }
-        /**
-         *
-         *
-         * 
-         * A list of detected languages together with confidence.
-         * 

          *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
-         * 
+         * @return The enum numeric value on the wire for orientation.
          */
-        public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder
-            getDetectedLanguagesOrBuilder(int index) {
-          if (detectedLanguagesBuilder_ == null) {
-            return detectedLanguages_.get(index);
-          } else {
-            return detectedLanguagesBuilder_.getMessageOrBuilder(index);
-          }
+        @java.lang.Override
+        public int getOrientationValue() {
+          return orientation_;
         }
         /**
          *
          *
          * 
-         * A list of detected languages together with confidence.
+         * Detected orientation for the
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout].
          * 

          *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
+         * .google.cloud.documentai.v1beta2.Document.Page.Layout.Orientation orientation = 4;
          * 
+         *
+         * @param value The enum numeric value on the wire for orientation to set.
+         * @return This builder for chaining.
          */
-        public java.util.List<
-                ? extends
-                    com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>
-            getDetectedLanguagesOrBuilderList() {
-          if (detectedLanguagesBuilder_ != null) {
-            return detectedLanguagesBuilder_.getMessageOrBuilderList();
-          } else {
-            return java.util.Collections.unmodifiableList(detectedLanguages_);
-          }
+        public Builder setOrientationValue(int value) {
+          orientation_ = value;
+          bitField0_ |= 0x00000008;
+          onChanged();
+          return this;
         }
         /**
          *
          *
          * 
-         * A list of detected languages together with confidence.
+         * Detected orientation for the
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout].
          * 

          *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
+         * .google.cloud.documentai.v1beta2.Document.Page.Layout.Orientation orientation = 4;
          * 
+         *
+         * @return The orientation.
          */
-        public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
-            addDetectedLanguagesBuilder() {
-          return getDetectedLanguagesFieldBuilder()
-              .addBuilder(
-                  com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage
-                      .getDefaultInstance());
+        @java.lang.Override
+        public com.google.cloud.documentai.v1beta2.Document.Page.Layout.Orientation
+            getOrientation() {
+          com.google.cloud.documentai.v1beta2.Document.Page.Layout.Orientation result =
+              com.google.cloud.documentai.v1beta2.Document.Page.Layout.Orientation.forNumber(
+                  orientation_);
+          return result == null
+              ? com.google.cloud.documentai.v1beta2.Document.Page.Layout.Orientation.UNRECOGNIZED
+              : result;
         }
         /**
          *
          *
          * 
-         * A list of detected languages together with confidence.
+         * Detected orientation for the
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout].
          * 

          *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
+         * .google.cloud.documentai.v1beta2.Document.Page.Layout.Orientation orientation = 4;
          * 
+         *
+         * @param value The orientation to set.
+         * @return This builder for chaining.
          */
-        public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
-            addDetectedLanguagesBuilder(int index) {
-          return getDetectedLanguagesFieldBuilder()
-              .addBuilder(
-                  index,
-                  com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage
-                      .getDefaultInstance());
+        public Builder setOrientation(
+            com.google.cloud.documentai.v1beta2.Document.Page.Layout.Orientation value) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          bitField0_ |= 0x00000008;
+          orientation_ = value.getNumber();
+          onChanged();
+          return this;
         }
         /**
          *
          *
          * 
-         * A list of detected languages together with confidence.
+         * Detected orientation for the
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout].
          * 

          *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
+         * .google.cloud.documentai.v1beta2.Document.Page.Layout.Orientation orientation = 4;
          * 
+         *
+         * @return This builder for chaining.
          */
-        public java.util.List<
-                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder>
-            getDetectedLanguagesBuilderList() {
-          return getDetectedLanguagesFieldBuilder().getBuilderList();
-        }
-
-        private com.google.protobuf.RepeatedFieldBuilderV3<
-                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage,
-                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder,
-                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>
-            getDetectedLanguagesFieldBuilder() {
-          if (detectedLanguagesBuilder_ == null) {
-            detectedLanguagesBuilder_ =
-                new com.google.protobuf.RepeatedFieldBuilderV3<
-                    com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage,
-                    com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder,
-                    com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>(
-                    detectedLanguages_,
-                    ((bitField0_ & 0x00000002) != 0),
-                    getParentForChildren(),
-                    isClean());
-            detectedLanguages_ = null;
-          }
-          return detectedLanguagesBuilder_;
+        public Builder clearOrientation() {
+          bitField0_ = (bitField0_ & ~0x00000008);
+          orientation_ = 0;
+          onChanged();
+          return this;
         }
 
         @java.lang.Override
@@ -11049,26 +10558,25 @@ public final Builder mergeUnknownFields(
           return super.mergeUnknownFields(unknownFields);
         }
 
-        // @@protoc_insertion_point(builder_scope:google.cloud.documentai.v1beta2.Document.Page.Paragraph)
+        // @@protoc_insertion_point(builder_scope:google.cloud.documentai.v1beta2.Document.Page.Layout)
       }
 
-      // @@protoc_insertion_point(class_scope:google.cloud.documentai.v1beta2.Document.Page.Paragraph)
-      private static final com.google.cloud.documentai.v1beta2.Document.Page.Paragraph
+      // @@protoc_insertion_point(class_scope:google.cloud.documentai.v1beta2.Document.Page.Layout)
+      private static final com.google.cloud.documentai.v1beta2.Document.Page.Layout
           DEFAULT_INSTANCE;
 
       static {
-        DEFAULT_INSTANCE = new com.google.cloud.documentai.v1beta2.Document.Page.Paragraph();
+        DEFAULT_INSTANCE = new com.google.cloud.documentai.v1beta2.Document.Page.Layout();
       }
 
-      public static com.google.cloud.documentai.v1beta2.Document.Page.Paragraph
-          getDefaultInstance() {
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Layout getDefaultInstance() {
         return DEFAULT_INSTANCE;
       }
 
-      private static final com.google.protobuf.Parser PARSER =
-          new com.google.protobuf.AbstractParser() {
+      private static final com.google.protobuf.Parser PARSER =
+          new com.google.protobuf.AbstractParser() {
             @java.lang.Override
-            public Paragraph parsePartialFrom(
+            public Layout parsePartialFrom(
                 com.google.protobuf.CodedInputStream input,
                 com.google.protobuf.ExtensionRegistryLite extensionRegistry)
                 throws com.google.protobuf.InvalidProtocolBufferException {
@@ -11088,32 +10596,32 @@ public Paragraph parsePartialFrom(
             }
           };
 
-      public static com.google.protobuf.Parser parser() {
+      public static com.google.protobuf.Parser parser() {
         return PARSER;
       }
 
       @java.lang.Override
-      public com.google.protobuf.Parser getParserForType() {
+      public com.google.protobuf.Parser getParserForType() {
         return PARSER;
       }
 
       @java.lang.Override
-      public com.google.cloud.documentai.v1beta2.Document.Page.Paragraph
-          getDefaultInstanceForType() {
+      public com.google.cloud.documentai.v1beta2.Document.Page.Layout getDefaultInstanceForType() {
         return DEFAULT_INSTANCE;
       }
     }
 
-    public interface LineOrBuilder
+    public interface BlockOrBuilder
         extends
-        // @@protoc_insertion_point(interface_extends:google.cloud.documentai.v1beta2.Document.Page.Line)
+        // @@protoc_insertion_point(interface_extends:google.cloud.documentai.v1beta2.Document.Page.Block)
         com.google.protobuf.MessageOrBuilder {
 
       /**
        *
        *
        * 
-       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [Line][google.cloud.documentai.v1beta2.Document.Page.Line].
+       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+       * [Block][google.cloud.documentai.v1beta2.Document.Page.Block].
        * 

        *
        * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
@@ -11125,7 +10633,8 @@ public interface LineOrBuilder
        *
        *
        * 
-       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [Line][google.cloud.documentai.v1beta2.Document.Page.Line].
+       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+       * [Block][google.cloud.documentai.v1beta2.Document.Page.Block].
        * 

        *
        * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
@@ -11137,7 +10646,8 @@ public interface LineOrBuilder
        *
        *
        * 
-       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [Line][google.cloud.documentai.v1beta2.Document.Page.Line].
+       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+       * [Block][google.cloud.documentai.v1beta2.Document.Page.Block].
        * 

        *
        * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
@@ -11209,50 +10719,98 @@ com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage getDetectedLa
        */
       com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder
           getDetectedLanguagesOrBuilder(int index);
+
+      /**
+       *
+       *
+       * 
+       * The history of this annotation.
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 3 [deprecated = true];
+       * 
+       *
+       * @deprecated google.cloud.documentai.v1beta2.Document.Page.Block.provenance is deprecated.
+       *     See google/cloud/documentai/v1beta2/document.proto;l=233
+       * @return Whether the provenance field is set.
+       */
+      @java.lang.Deprecated
+      boolean hasProvenance();
+      /**
+       *
+       *
+       * 
+       * The history of this annotation.
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 3 [deprecated = true];
+       * 
+       *
+       * @deprecated google.cloud.documentai.v1beta2.Document.Page.Block.provenance is deprecated.
+       *     See google/cloud/documentai/v1beta2/document.proto;l=233
+       * @return The provenance.
+       */
+      @java.lang.Deprecated
+      com.google.cloud.documentai.v1beta2.Document.Provenance getProvenance();
+      /**
+       *
+       *
+       * 
+       * The history of this annotation.
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 3 [deprecated = true];
+       * 
+       */
+      @java.lang.Deprecated
+      com.google.cloud.documentai.v1beta2.Document.ProvenanceOrBuilder getProvenanceOrBuilder();
     }
     /**
      *
      *
      * 
-     * A collection of tokens that a human would perceive as a line.
-     * Does not cross column boundaries, can be horizontal, vertical, etc.
+     * A block has a set of lines (collected into paragraphs) that have a
+     * common line-spacing and orientation.
      * 

      *
-     * Protobuf type {@code google.cloud.documentai.v1beta2.Document.Page.Line}
+     * Protobuf type {@code google.cloud.documentai.v1beta2.Document.Page.Block}
      */
-    public static final class Line extends com.google.protobuf.GeneratedMessageV3
+    public static final class Block extends com.google.protobuf.GeneratedMessageV3
         implements
-        // @@protoc_insertion_point(message_implements:google.cloud.documentai.v1beta2.Document.Page.Line)
-        LineOrBuilder {
+        // @@protoc_insertion_point(message_implements:google.cloud.documentai.v1beta2.Document.Page.Block)
+        BlockOrBuilder {
       private static final long serialVersionUID = 0L;
-      // Use Line.newBuilder() to construct.
-      private Line(com.google.protobuf.GeneratedMessageV3.Builder builder) {
+      // Use Block.newBuilder() to construct.
+      private Block(com.google.protobuf.GeneratedMessageV3.Builder builder) {
         super(builder);
       }
 
-      private Line() {
+      private Block() {
         detectedLanguages_ = java.util.Collections.emptyList();
       }
 
       @java.lang.Override
       @SuppressWarnings({"unused"})
       protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
-        return new Line();
+        return new Block();
       }
 
       public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
         return com.google.cloud.documentai.v1beta2.DocumentProto
-            .internal_static_google_cloud_documentai_v1beta2_Document_Page_Line_descriptor;
+            .internal_static_google_cloud_documentai_v1beta2_Document_Page_Block_descriptor;
       }
 
       @java.lang.Override
       protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
           internalGetFieldAccessorTable() {
         return com.google.cloud.documentai.v1beta2.DocumentProto
-            .internal_static_google_cloud_documentai_v1beta2_Document_Page_Line_fieldAccessorTable
+            .internal_static_google_cloud_documentai_v1beta2_Document_Page_Block_fieldAccessorTable
             .ensureFieldAccessorsInitialized(
-                com.google.cloud.documentai.v1beta2.Document.Page.Line.class,
-                com.google.cloud.documentai.v1beta2.Document.Page.Line.Builder.class);
+                com.google.cloud.documentai.v1beta2.Document.Page.Block.class,
+                com.google.cloud.documentai.v1beta2.Document.Page.Block.Builder.class);
       }
 
       public static final int LAYOUT_FIELD_NUMBER = 1;
@@ -11261,7 +10819,8 @@ public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
        *
        *
        * 
-       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [Line][google.cloud.documentai.v1beta2.Document.Page.Line].
+       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+       * [Block][google.cloud.documentai.v1beta2.Document.Page.Block].
        * 

        *
        * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
@@ -11276,7 +10835,8 @@ public boolean hasLayout() {
        *
        *
        * 
-       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [Line][google.cloud.documentai.v1beta2.Document.Page.Line].
+       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+       * [Block][google.cloud.documentai.v1beta2.Document.Page.Block].
        * 

        *
        * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
@@ -11293,7 +10853,8 @@ public com.google.cloud.documentai.v1beta2.Document.Page.Layout getLayout() {
        *
        *
        * 
-       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [Line][google.cloud.documentai.v1beta2.Document.Page.Line].
+       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+       * [Block][google.cloud.documentai.v1beta2.Document.Page.Block].
        * 

        *
        * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
@@ -11392,6 +10953,70 @@ public int getDetectedLanguagesCount() {
         return detectedLanguages_.get(index);
       }
 
+      public static final int PROVENANCE_FIELD_NUMBER = 3;
+      private com.google.cloud.documentai.v1beta2.Document.Provenance provenance_;
+      /**
+       *
+       *
+       * 
+       * The history of this annotation.
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 3 [deprecated = true];
+       * 
+       *
+       * @deprecated google.cloud.documentai.v1beta2.Document.Page.Block.provenance is deprecated.
+       *     See google/cloud/documentai/v1beta2/document.proto;l=233
+       * @return Whether the provenance field is set.
+       */
+      @java.lang.Override
+      @java.lang.Deprecated
+      public boolean hasProvenance() {
+        return provenance_ != null;
+      }
+      /**
+       *
+       *
+       * 
+       * The history of this annotation.
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 3 [deprecated = true];
+       * 
+       *
+       * @deprecated google.cloud.documentai.v1beta2.Document.Page.Block.provenance is deprecated.
+       *     See google/cloud/documentai/v1beta2/document.proto;l=233
+       * @return The provenance.
+       */
+      @java.lang.Override
+      @java.lang.Deprecated
+      public com.google.cloud.documentai.v1beta2.Document.Provenance getProvenance() {
+        return provenance_ == null
+            ? com.google.cloud.documentai.v1beta2.Document.Provenance.getDefaultInstance()
+            : provenance_;
+      }
+      /**
+       *
+       *
+       * 
+       * The history of this annotation.
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 3 [deprecated = true];
+       * 
+       */
+      @java.lang.Override
+      @java.lang.Deprecated
+      public com.google.cloud.documentai.v1beta2.Document.ProvenanceOrBuilder
+          getProvenanceOrBuilder() {
+        return provenance_ == null
+            ? com.google.cloud.documentai.v1beta2.Document.Provenance.getDefaultInstance()
+            : provenance_;
+      }
+
       private byte memoizedIsInitialized = -1;
 
       @java.lang.Override
@@ -11412,6 +11037,9 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
         for (int i = 0; i < detectedLanguages_.size(); i++) {
           output.writeMessage(2, detectedLanguages_.get(i));
         }
+        if (provenance_ != null) {
+          output.writeMessage(3, getProvenance());
+        }
         getUnknownFields().writeTo(output);
       }
 
@@ -11429,6 +11057,9 @@ public int getSerializedSize() {
               com.google.protobuf.CodedOutputStream.computeMessageSize(
                   2, detectedLanguages_.get(i));
         }
+        if (provenance_ != null) {
+          size += com.google.protobuf.CodedOutputStream.computeMessageSize(3, getProvenance());
+        }
         size += getUnknownFields().getSerializedSize();
         memoizedSize = size;
         return size;
@@ -11439,17 +11070,21 @@ public boolean equals(final java.lang.Object obj) {
         if (obj == this) {
           return true;
         }
-        if (!(obj instanceof com.google.cloud.documentai.v1beta2.Document.Page.Line)) {
+        if (!(obj instanceof com.google.cloud.documentai.v1beta2.Document.Page.Block)) {
           return super.equals(obj);
         }
-        com.google.cloud.documentai.v1beta2.Document.Page.Line other =
-            (com.google.cloud.documentai.v1beta2.Document.Page.Line) obj;
+        com.google.cloud.documentai.v1beta2.Document.Page.Block other =
+            (com.google.cloud.documentai.v1beta2.Document.Page.Block) obj;
 
         if (hasLayout() != other.hasLayout()) return false;
         if (hasLayout()) {
           if (!getLayout().equals(other.getLayout())) return false;
         }
         if (!getDetectedLanguagesList().equals(other.getDetectedLanguagesList())) return false;
+        if (hasProvenance() != other.hasProvenance()) return false;
+        if (hasProvenance()) {
+          if (!getProvenance().equals(other.getProvenance())) return false;
+        }
         if (!getUnknownFields().equals(other.getUnknownFields())) return false;
         return true;
       }
@@ -11469,76 +11104,80 @@ public int hashCode() {
           hash = (37 * hash) + DETECTED_LANGUAGES_FIELD_NUMBER;
           hash = (53 * hash) + getDetectedLanguagesList().hashCode();
         }
+        if (hasProvenance()) {
+          hash = (37 * hash) + PROVENANCE_FIELD_NUMBER;
+          hash = (53 * hash) + getProvenance().hashCode();
+        }
         hash = (29 * hash) + getUnknownFields().hashCode();
         memoizedHashCode = hash;
         return hash;
       }
 
-      public static com.google.cloud.documentai.v1beta2.Document.Page.Line parseFrom(
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Block parseFrom(
           java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
         return PARSER.parseFrom(data);
       }
 
-      public static com.google.cloud.documentai.v1beta2.Document.Page.Line parseFrom(
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Block parseFrom(
           java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws com.google.protobuf.InvalidProtocolBufferException {
         return PARSER.parseFrom(data, extensionRegistry);
       }
 
-      public static com.google.cloud.documentai.v1beta2.Document.Page.Line parseFrom(
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Block parseFrom(
           com.google.protobuf.ByteString data)
           throws com.google.protobuf.InvalidProtocolBufferException {
         return PARSER.parseFrom(data);
       }
 
-      public static com.google.cloud.documentai.v1beta2.Document.Page.Line parseFrom(
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Block parseFrom(
           com.google.protobuf.ByteString data,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws com.google.protobuf.InvalidProtocolBufferException {
         return PARSER.parseFrom(data, extensionRegistry);
       }
 
-      public static com.google.cloud.documentai.v1beta2.Document.Page.Line parseFrom(byte[] data)
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Block parseFrom(byte[] data)
           throws com.google.protobuf.InvalidProtocolBufferException {
         return PARSER.parseFrom(data);
       }
 
-      public static com.google.cloud.documentai.v1beta2.Document.Page.Line parseFrom(
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Block parseFrom(
           byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws com.google.protobuf.InvalidProtocolBufferException {
         return PARSER.parseFrom(data, extensionRegistry);
       }
 
-      public static com.google.cloud.documentai.v1beta2.Document.Page.Line parseFrom(
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Block parseFrom(
           java.io.InputStream input) throws java.io.IOException {
         return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
       }
 
-      public static com.google.cloud.documentai.v1beta2.Document.Page.Line parseFrom(
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Block parseFrom(
           java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws java.io.IOException {
         return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
             PARSER, input, extensionRegistry);
       }
 
-      public static com.google.cloud.documentai.v1beta2.Document.Page.Line parseDelimitedFrom(
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Block parseDelimitedFrom(
           java.io.InputStream input) throws java.io.IOException {
         return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
       }
 
-      public static com.google.cloud.documentai.v1beta2.Document.Page.Line parseDelimitedFrom(
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Block parseDelimitedFrom(
           java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws java.io.IOException {
         return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
             PARSER, input, extensionRegistry);
       }
 
-      public static com.google.cloud.documentai.v1beta2.Document.Page.Line parseFrom(
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Block parseFrom(
           com.google.protobuf.CodedInputStream input) throws java.io.IOException {
         return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
       }
 
-      public static com.google.cloud.documentai.v1beta2.Document.Page.Line parseFrom(
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Block parseFrom(
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws java.io.IOException {
@@ -11556,7 +11195,7 @@ public static Builder newBuilder() {
       }
 
       public static Builder newBuilder(
-          com.google.cloud.documentai.v1beta2.Document.Page.Line prototype) {
+          com.google.cloud.documentai.v1beta2.Document.Page.Block prototype) {
         return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
       }
 
@@ -11575,33 +11214,33 @@ protected Builder newBuilderForType(
        *
        *
        * 
-       * A collection of tokens that a human would perceive as a line.
-       * Does not cross column boundaries, can be horizontal, vertical, etc.
+       * A block has a set of lines (collected into paragraphs) that have a
+       * common line-spacing and orientation.
        * 

        *
-       * Protobuf type {@code google.cloud.documentai.v1beta2.Document.Page.Line}
+       * Protobuf type {@code google.cloud.documentai.v1beta2.Document.Page.Block}
        */
       public static final class Builder
           extends com.google.protobuf.GeneratedMessageV3.Builder
           implements
-          // @@protoc_insertion_point(builder_implements:google.cloud.documentai.v1beta2.Document.Page.Line)
-          com.google.cloud.documentai.v1beta2.Document.Page.LineOrBuilder {
+          // @@protoc_insertion_point(builder_implements:google.cloud.documentai.v1beta2.Document.Page.Block)
+          com.google.cloud.documentai.v1beta2.Document.Page.BlockOrBuilder {
         public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
           return com.google.cloud.documentai.v1beta2.DocumentProto
-              .internal_static_google_cloud_documentai_v1beta2_Document_Page_Line_descriptor;
+              .internal_static_google_cloud_documentai_v1beta2_Document_Page_Block_descriptor;
         }
 
         @java.lang.Override
         protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
             internalGetFieldAccessorTable() {
           return com.google.cloud.documentai.v1beta2.DocumentProto
-              .internal_static_google_cloud_documentai_v1beta2_Document_Page_Line_fieldAccessorTable
+              .internal_static_google_cloud_documentai_v1beta2_Document_Page_Block_fieldAccessorTable
               .ensureFieldAccessorsInitialized(
-                  com.google.cloud.documentai.v1beta2.Document.Page.Line.class,
-                  com.google.cloud.documentai.v1beta2.Document.Page.Line.Builder.class);
+                  com.google.cloud.documentai.v1beta2.Document.Page.Block.class,
+                  com.google.cloud.documentai.v1beta2.Document.Page.Block.Builder.class);
         }
 
-        // Construct using com.google.cloud.documentai.v1beta2.Document.Page.Line.newBuilder()
+        // Construct using com.google.cloud.documentai.v1beta2.Document.Page.Block.newBuilder()
         private Builder() {}
 
         private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
@@ -11624,23 +11263,28 @@ public Builder clear() {
             detectedLanguagesBuilder_.clear();
           }
           bitField0_ = (bitField0_ & ~0x00000002);
+          provenance_ = null;
+          if (provenanceBuilder_ != null) {
+            provenanceBuilder_.dispose();
+            provenanceBuilder_ = null;
+          }
           return this;
         }
 
         @java.lang.Override
         public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
           return com.google.cloud.documentai.v1beta2.DocumentProto
-              .internal_static_google_cloud_documentai_v1beta2_Document_Page_Line_descriptor;
+              .internal_static_google_cloud_documentai_v1beta2_Document_Page_Block_descriptor;
         }
 
         @java.lang.Override
-        public com.google.cloud.documentai.v1beta2.Document.Page.Line getDefaultInstanceForType() {
-          return com.google.cloud.documentai.v1beta2.Document.Page.Line.getDefaultInstance();
+        public com.google.cloud.documentai.v1beta2.Document.Page.Block getDefaultInstanceForType() {
+          return com.google.cloud.documentai.v1beta2.Document.Page.Block.getDefaultInstance();
         }
 
         @java.lang.Override
-        public com.google.cloud.documentai.v1beta2.Document.Page.Line build() {
-          com.google.cloud.documentai.v1beta2.Document.Page.Line result = buildPartial();
+        public com.google.cloud.documentai.v1beta2.Document.Page.Block build() {
+          com.google.cloud.documentai.v1beta2.Document.Page.Block result = buildPartial();
           if (!result.isInitialized()) {
             throw newUninitializedMessageException(result);
           }
@@ -11648,9 +11292,9 @@ public com.google.cloud.documentai.v1beta2.Document.Page.Line build() {
         }
 
         @java.lang.Override
-        public com.google.cloud.documentai.v1beta2.Document.Page.Line buildPartial() {
-          com.google.cloud.documentai.v1beta2.Document.Page.Line result =
-              new com.google.cloud.documentai.v1beta2.Document.Page.Line(this);
+        public com.google.cloud.documentai.v1beta2.Document.Page.Block buildPartial() {
+          com.google.cloud.documentai.v1beta2.Document.Page.Block result =
+              new com.google.cloud.documentai.v1beta2.Document.Page.Block(this);
           buildPartialRepeatedFields(result);
           if (bitField0_ != 0) {
             buildPartial0(result);
@@ -11660,7 +11304,7 @@ public com.google.cloud.documentai.v1beta2.Document.Page.Line buildPartial() {
         }
 
         private void buildPartialRepeatedFields(
-            com.google.cloud.documentai.v1beta2.Document.Page.Line result) {
+            com.google.cloud.documentai.v1beta2.Document.Page.Block result) {
           if (detectedLanguagesBuilder_ == null) {
             if (((bitField0_ & 0x00000002) != 0)) {
               detectedLanguages_ = java.util.Collections.unmodifiableList(detectedLanguages_);
@@ -11672,11 +11316,15 @@ private void buildPartialRepeatedFields(
           }
         }
 
-        private void buildPartial0(com.google.cloud.documentai.v1beta2.Document.Page.Line result) {
+        private void buildPartial0(com.google.cloud.documentai.v1beta2.Document.Page.Block result) {
           int from_bitField0_ = bitField0_;
           if (((from_bitField0_ & 0x00000001) != 0)) {
             result.layout_ = layoutBuilder_ == null ? layout_ : layoutBuilder_.build();
           }
+          if (((from_bitField0_ & 0x00000004) != 0)) {
+            result.provenance_ =
+                provenanceBuilder_ == null ? provenance_ : provenanceBuilder_.build();
+          }
         }
 
         @java.lang.Override
@@ -11716,16 +11364,16 @@ public Builder addRepeatedField(
 
         @java.lang.Override
         public Builder mergeFrom(com.google.protobuf.Message other) {
-          if (other instanceof com.google.cloud.documentai.v1beta2.Document.Page.Line) {
-            return mergeFrom((com.google.cloud.documentai.v1beta2.Document.Page.Line) other);
+          if (other instanceof com.google.cloud.documentai.v1beta2.Document.Page.Block) {
+            return mergeFrom((com.google.cloud.documentai.v1beta2.Document.Page.Block) other);
           } else {
             super.mergeFrom(other);
             return this;
           }
         }
 
-        public Builder mergeFrom(com.google.cloud.documentai.v1beta2.Document.Page.Line other) {
-          if (other == com.google.cloud.documentai.v1beta2.Document.Page.Line.getDefaultInstance())
+        public Builder mergeFrom(com.google.cloud.documentai.v1beta2.Document.Page.Block other) {
+          if (other == com.google.cloud.documentai.v1beta2.Document.Page.Block.getDefaultInstance())
             return this;
           if (other.hasLayout()) {
             mergeLayout(other.getLayout());
@@ -11757,6 +11405,9 @@ public Builder mergeFrom(com.google.cloud.documentai.v1beta2.Document.Page.Line
               }
             }
           }
+          if (other.hasProvenance()) {
+            mergeProvenance(other.getProvenance());
+          }
           this.mergeUnknownFields(other.getUnknownFields());
           onChanged();
           return this;
@@ -11804,6 +11455,12 @@ public Builder mergeFrom(
                     }
                     break;
                   } // case 18
+                case 26:
+                  {
+                    input.readMessage(getProvenanceFieldBuilder().getBuilder(), extensionRegistry);
+                    bitField0_ |= 0x00000004;
+                    break;
+                  } // case 26
                 default:
                   {
                     if (!super.parseUnknownField(input, extensionRegistry, tag)) {
@@ -11833,7 +11490,8 @@ public Builder mergeFrom(
          *
          *
          * 
-         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [Line][google.cloud.documentai.v1beta2.Document.Page.Line].
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+         * [Block][google.cloud.documentai.v1beta2.Document.Page.Block].
          * 

          *
          * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
@@ -11847,7 +11505,8 @@ public boolean hasLayout() {
          *
          *
          * 
-         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [Line][google.cloud.documentai.v1beta2.Document.Page.Line].
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+         * [Block][google.cloud.documentai.v1beta2.Document.Page.Block].
          * 

          *
          * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
@@ -11867,7 +11526,8 @@ public com.google.cloud.documentai.v1beta2.Document.Page.Layout getLayout() {
          *
          *
          * 
-         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [Line][google.cloud.documentai.v1beta2.Document.Page.Line].
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+         * [Block][google.cloud.documentai.v1beta2.Document.Page.Block].
          * 

          *
          * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
@@ -11889,7 +11549,8 @@ public Builder setLayout(com.google.cloud.documentai.v1beta2.Document.Page.Layou
          *
          *
          * 
-         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [Line][google.cloud.documentai.v1beta2.Document.Page.Line].
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+         * [Block][google.cloud.documentai.v1beta2.Document.Page.Block].
          * 

          *
          * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
@@ -11909,7 +11570,8 @@ public Builder setLayout(
          *
          *
          * 
-         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [Line][google.cloud.documentai.v1beta2.Document.Page.Line].
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+         * [Block][google.cloud.documentai.v1beta2.Document.Page.Block].
          * 

          *
          * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
@@ -11936,7 +11598,8 @@ public Builder mergeLayout(com.google.cloud.documentai.v1beta2.Document.Page.Lay
          *
          *
          * 
-         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [Line][google.cloud.documentai.v1beta2.Document.Page.Line].
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+         * [Block][google.cloud.documentai.v1beta2.Document.Page.Block].
          * 

          *
          * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
@@ -11955,7 +11618,8 @@ public Builder clearLayout() {
          *
          *
          * 
-         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [Line][google.cloud.documentai.v1beta2.Document.Page.Line].
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+         * [Block][google.cloud.documentai.v1beta2.Document.Page.Block].
          * 

          *
          * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
@@ -11969,7 +11633,8 @@ public com.google.cloud.documentai.v1beta2.Document.Page.Layout.Builder getLayou
          *
          *
          * 
-         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [Line][google.cloud.documentai.v1beta2.Document.Page.Line].
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+         * [Block][google.cloud.documentai.v1beta2.Document.Page.Block].
          * 

          *
          * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
@@ -11988,7 +11653,8 @@ public com.google.cloud.documentai.v1beta2.Document.Page.Layout.Builder getLayou
          *
          *
          * 
-         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [Line][google.cloud.documentai.v1beta2.Document.Page.Line].
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+         * [Block][google.cloud.documentai.v1beta2.Document.Page.Block].
          * 

          *
          * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
@@ -12426,6 +12092,226 @@ public Builder removeDetectedLanguages(int index) {
           return detectedLanguagesBuilder_;
         }
 
+        private com.google.cloud.documentai.v1beta2.Document.Provenance provenance_;
+        private com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.documentai.v1beta2.Document.Provenance,
+                com.google.cloud.documentai.v1beta2.Document.Provenance.Builder,
+                com.google.cloud.documentai.v1beta2.Document.ProvenanceOrBuilder>
+            provenanceBuilder_;
+        /**
+         *
+         *
+         * 
+         * The history of this annotation.
+         * 

+         *
+         * 
+         * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 3 [deprecated = true];
+         * 
+         *
+         * @deprecated google.cloud.documentai.v1beta2.Document.Page.Block.provenance is deprecated.
+         *     See google/cloud/documentai/v1beta2/document.proto;l=233
+         * @return Whether the provenance field is set.
+         */
+        @java.lang.Deprecated
+        public boolean hasProvenance() {
+          return ((bitField0_ & 0x00000004) != 0);
+        }
+        /**
+         *
+         *
+         * 
+         * The history of this annotation.
+         * 

+         *
+         * 
+         * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 3 [deprecated = true];
+         * 
+         *
+         * @deprecated google.cloud.documentai.v1beta2.Document.Page.Block.provenance is deprecated.
+         *     See google/cloud/documentai/v1beta2/document.proto;l=233
+         * @return The provenance.
+         */
+        @java.lang.Deprecated
+        public com.google.cloud.documentai.v1beta2.Document.Provenance getProvenance() {
+          if (provenanceBuilder_ == null) {
+            return provenance_ == null
+                ? com.google.cloud.documentai.v1beta2.Document.Provenance.getDefaultInstance()
+                : provenance_;
+          } else {
+            return provenanceBuilder_.getMessage();
+          }
+        }
+        /**
+         *
+         *
+         * 
+         * The history of this annotation.
+         * 

+         *
+         * 
+         * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 3 [deprecated = true];
+         * 
+         */
+        @java.lang.Deprecated
+        public Builder setProvenance(
+            com.google.cloud.documentai.v1beta2.Document.Provenance value) {
+          if (provenanceBuilder_ == null) {
+            if (value == null) {
+              throw new NullPointerException();
+            }
+            provenance_ = value;
+          } else {
+            provenanceBuilder_.setMessage(value);
+          }
+          bitField0_ |= 0x00000004;
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * The history of this annotation.
+         * 

+         *
+         * 
+         * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 3 [deprecated = true];
+         * 
+         */
+        @java.lang.Deprecated
+        public Builder setProvenance(
+            com.google.cloud.documentai.v1beta2.Document.Provenance.Builder builderForValue) {
+          if (provenanceBuilder_ == null) {
+            provenance_ = builderForValue.build();
+          } else {
+            provenanceBuilder_.setMessage(builderForValue.build());
+          }
+          bitField0_ |= 0x00000004;
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * The history of this annotation.
+         * 

+         *
+         * 
+         * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 3 [deprecated = true];
+         * 
+         */
+        @java.lang.Deprecated
+        public Builder mergeProvenance(
+            com.google.cloud.documentai.v1beta2.Document.Provenance value) {
+          if (provenanceBuilder_ == null) {
+            if (((bitField0_ & 0x00000004) != 0)
+                && provenance_ != null
+                && provenance_
+                    != com.google.cloud.documentai.v1beta2.Document.Provenance
+                        .getDefaultInstance()) {
+              getProvenanceBuilder().mergeFrom(value);
+            } else {
+              provenance_ = value;
+            }
+          } else {
+            provenanceBuilder_.mergeFrom(value);
+          }
+          bitField0_ |= 0x00000004;
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * The history of this annotation.
+         * 

+         *
+         * 
+         * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 3 [deprecated = true];
+         * 
+         */
+        @java.lang.Deprecated
+        public Builder clearProvenance() {
+          bitField0_ = (bitField0_ & ~0x00000004);
+          provenance_ = null;
+          if (provenanceBuilder_ != null) {
+            provenanceBuilder_.dispose();
+            provenanceBuilder_ = null;
+          }
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * The history of this annotation.
+         * 

+         *
+         * 
+         * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 3 [deprecated = true];
+         * 
+         */
+        @java.lang.Deprecated
+        public com.google.cloud.documentai.v1beta2.Document.Provenance.Builder
+            getProvenanceBuilder() {
+          bitField0_ |= 0x00000004;
+          onChanged();
+          return getProvenanceFieldBuilder().getBuilder();
+        }
+        /**
+         *
+         *
+         * 
+         * The history of this annotation.
+         * 

+         *
+         * 
+         * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 3 [deprecated = true];
+         * 
+         */
+        @java.lang.Deprecated
+        public com.google.cloud.documentai.v1beta2.Document.ProvenanceOrBuilder
+            getProvenanceOrBuilder() {
+          if (provenanceBuilder_ != null) {
+            return provenanceBuilder_.getMessageOrBuilder();
+          } else {
+            return provenance_ == null
+                ? com.google.cloud.documentai.v1beta2.Document.Provenance.getDefaultInstance()
+                : provenance_;
+          }
+        }
+        /**
+         *
+         *
+         * 
+         * The history of this annotation.
+         * 

+         *
+         * 
+         * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 3 [deprecated = true];
+         * 
+         */
+        private com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.documentai.v1beta2.Document.Provenance,
+                com.google.cloud.documentai.v1beta2.Document.Provenance.Builder,
+                com.google.cloud.documentai.v1beta2.Document.ProvenanceOrBuilder>
+            getProvenanceFieldBuilder() {
+          if (provenanceBuilder_ == null) {
+            provenanceBuilder_ =
+                new com.google.protobuf.SingleFieldBuilderV3<
+                    com.google.cloud.documentai.v1beta2.Document.Provenance,
+                    com.google.cloud.documentai.v1beta2.Document.Provenance.Builder,
+                    com.google.cloud.documentai.v1beta2.Document.ProvenanceOrBuilder>(
+                    getProvenance(), getParentForChildren(), isClean());
+            provenance_ = null;
+          }
+          return provenanceBuilder_;
+        }
+
         @java.lang.Override
         public final Builder setUnknownFields(
             final com.google.protobuf.UnknownFieldSet unknownFields) {
@@ -12438,24 +12324,24 @@ public final Builder mergeUnknownFields(
           return super.mergeUnknownFields(unknownFields);
         }
 
-        // @@protoc_insertion_point(builder_scope:google.cloud.documentai.v1beta2.Document.Page.Line)
+        // @@protoc_insertion_point(builder_scope:google.cloud.documentai.v1beta2.Document.Page.Block)
       }
 
-      // @@protoc_insertion_point(class_scope:google.cloud.documentai.v1beta2.Document.Page.Line)
-      private static final com.google.cloud.documentai.v1beta2.Document.Page.Line DEFAULT_INSTANCE;
+      // @@protoc_insertion_point(class_scope:google.cloud.documentai.v1beta2.Document.Page.Block)
+      private static final com.google.cloud.documentai.v1beta2.Document.Page.Block DEFAULT_INSTANCE;
 
       static {
-        DEFAULT_INSTANCE = new com.google.cloud.documentai.v1beta2.Document.Page.Line();
+        DEFAULT_INSTANCE = new com.google.cloud.documentai.v1beta2.Document.Page.Block();
       }
 
-      public static com.google.cloud.documentai.v1beta2.Document.Page.Line getDefaultInstance() {
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Block getDefaultInstance() {
         return DEFAULT_INSTANCE;
       }
 
-      private static final com.google.protobuf.Parser PARSER =
-          new com.google.protobuf.AbstractParser() {
+      private static final com.google.protobuf.Parser PARSER =
+          new com.google.protobuf.AbstractParser() {
             @java.lang.Override
-            public Line parsePartialFrom(
+            public Block parsePartialFrom(
                 com.google.protobuf.CodedInputStream input,
                 com.google.protobuf.ExtensionRegistryLite extensionRegistry)
                 throws com.google.protobuf.InvalidProtocolBufferException {
@@ -12475,31 +12361,32 @@ public Line parsePartialFrom(
             }
           };
 
-      public static com.google.protobuf.Parser parser() {
+      public static com.google.protobuf.Parser parser() {
         return PARSER;
       }
 
       @java.lang.Override
-      public com.google.protobuf.Parser getParserForType() {
+      public com.google.protobuf.Parser getParserForType() {
         return PARSER;
       }
 
       @java.lang.Override
-      public com.google.cloud.documentai.v1beta2.Document.Page.Line getDefaultInstanceForType() {
+      public com.google.cloud.documentai.v1beta2.Document.Page.Block getDefaultInstanceForType() {
         return DEFAULT_INSTANCE;
       }
     }
 
-    public interface TokenOrBuilder
+    public interface ParagraphOrBuilder
         extends
-        // @@protoc_insertion_point(interface_extends:google.cloud.documentai.v1beta2.Document.Page.Token)
+        // @@protoc_insertion_point(interface_extends:google.cloud.documentai.v1beta2.Document.Page.Paragraph)
         com.google.protobuf.MessageOrBuilder {
 
       /**
        *
        *
        * 
-       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [Token][google.cloud.documentai.v1beta2.Document.Page.Token].
+       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+       * [Paragraph][google.cloud.documentai.v1beta2.Document.Page.Paragraph].
        * 

        *
        * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
@@ -12511,7 +12398,8 @@ public interface TokenOrBuilder
        *
        *
        * 
-       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [Token][google.cloud.documentai.v1beta2.Document.Page.Token].
+       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+       * [Paragraph][google.cloud.documentai.v1beta2.Document.Page.Paragraph].
        * 

        *
        * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
@@ -12523,7 +12411,8 @@ public interface TokenOrBuilder
        *
        *
        * 
-       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [Token][google.cloud.documentai.v1beta2.Document.Page.Token].
+       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+       * [Paragraph][google.cloud.documentai.v1beta2.Document.Page.Paragraph].
        * 

        *
        * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
@@ -12534,44 +12423,40 @@ public interface TokenOrBuilder
        *
        *
        * 
-       * Detected break at the end of a [Token][google.cloud.documentai.v1beta2.Document.Page.Token].
+       * A list of detected languages together with confidence.
        * 

        *
        * 
-       * .google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak detected_break = 2;
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
        * 
-       *
-       * @return Whether the detectedBreak field is set.
        */
-      boolean hasDetectedBreak();
+      java.util.List
+          getDetectedLanguagesList();
       /**
        *
        *
        * 
-       * Detected break at the end of a [Token][google.cloud.documentai.v1beta2.Document.Page.Token].
+       * A list of detected languages together with confidence.
        * 

        *
        * 
-       * .google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak detected_break = 2;
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
        * 
-       *
-       * @return The detectedBreak.
        */
-      com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak getDetectedBreak();
+      com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage getDetectedLanguages(
+          int index);
       /**
        *
        *
        * 
-       * Detected break at the end of a [Token][google.cloud.documentai.v1beta2.Document.Page.Token].
+       * A list of detected languages together with confidence.
        * 

        *
        * 
-       * .google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak detected_break = 2;
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
        * 
        */
-      com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreakOrBuilder
-          getDetectedBreakOrBuilder();
-
+      int getDetectedLanguagesCount();
       /**
        *
        *
@@ -12580,11 +12465,12 @@ public interface TokenOrBuilder
        * 
        *
        * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
        * 
        */
-      java.util.List
-          getDetectedLanguagesList();
+      java.util.List<
+              ? extends com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>
+          getDetectedLanguagesOrBuilderList();
       /**
        *
        *
@@ -12593,1053 +12479,1930 @@ public interface TokenOrBuilder
        * 
        *
        * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
        * 
        */
-      com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage getDetectedLanguages(
-          int index);
+      com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder
+          getDetectedLanguagesOrBuilder(int index);
+
       /**
        *
        *
        * 
-       * A list of detected languages together with confidence.
+       * The  history of this annotation.
        * 

        *
        * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
+       * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 3 [deprecated = true];
        * 
+       *
+       * @deprecated google.cloud.documentai.v1beta2.Document.Page.Paragraph.provenance is
+       *     deprecated. See google/cloud/documentai/v1beta2/document.proto;l=246
+       * @return Whether the provenance field is set.
        */
-      int getDetectedLanguagesCount();
+      @java.lang.Deprecated
+      boolean hasProvenance();
       /**
        *
        *
        * 
-       * A list of detected languages together with confidence.
+       * The  history of this annotation.
        * 

        *
        * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
+       * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 3 [deprecated = true];
        * 
+       *
+       * @deprecated google.cloud.documentai.v1beta2.Document.Page.Paragraph.provenance is
+       *     deprecated. See google/cloud/documentai/v1beta2/document.proto;l=246
+       * @return The provenance.
        */
-      java.util.List<
-              ? extends com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>
-          getDetectedLanguagesOrBuilderList();
+      @java.lang.Deprecated
+      com.google.cloud.documentai.v1beta2.Document.Provenance getProvenance();
       /**
        *
        *
        * 
-       * A list of detected languages together with confidence.
+       * The  history of this annotation.
        * 

        *
        * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
+       * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 3 [deprecated = true];
        * 
        */
-      com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder
-          getDetectedLanguagesOrBuilder(int index);
+      @java.lang.Deprecated
+      com.google.cloud.documentai.v1beta2.Document.ProvenanceOrBuilder getProvenanceOrBuilder();
     }
     /**
      *
      *
      * 
-     * A detected token.
+     * A collection of lines that a human would perceive as a paragraph.
      * 

      *
-     * Protobuf type {@code google.cloud.documentai.v1beta2.Document.Page.Token}
+     * Protobuf type {@code google.cloud.documentai.v1beta2.Document.Page.Paragraph}
      */
-    public static final class Token extends com.google.protobuf.GeneratedMessageV3
+    public static final class Paragraph extends com.google.protobuf.GeneratedMessageV3
         implements
-        // @@protoc_insertion_point(message_implements:google.cloud.documentai.v1beta2.Document.Page.Token)
-        TokenOrBuilder {
+        // @@protoc_insertion_point(message_implements:google.cloud.documentai.v1beta2.Document.Page.Paragraph)
+        ParagraphOrBuilder {
       private static final long serialVersionUID = 0L;
-      // Use Token.newBuilder() to construct.
-      private Token(com.google.protobuf.GeneratedMessageV3.Builder builder) {
+      // Use Paragraph.newBuilder() to construct.
+      private Paragraph(com.google.protobuf.GeneratedMessageV3.Builder builder) {
         super(builder);
       }
 
-      private Token() {
+      private Paragraph() {
         detectedLanguages_ = java.util.Collections.emptyList();
       }
 
       @java.lang.Override
       @SuppressWarnings({"unused"})
       protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
-        return new Token();
+        return new Paragraph();
       }
 
       public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
         return com.google.cloud.documentai.v1beta2.DocumentProto
-            .internal_static_google_cloud_documentai_v1beta2_Document_Page_Token_descriptor;
+            .internal_static_google_cloud_documentai_v1beta2_Document_Page_Paragraph_descriptor;
       }
 
       @java.lang.Override
       protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
           internalGetFieldAccessorTable() {
         return com.google.cloud.documentai.v1beta2.DocumentProto
-            .internal_static_google_cloud_documentai_v1beta2_Document_Page_Token_fieldAccessorTable
+            .internal_static_google_cloud_documentai_v1beta2_Document_Page_Paragraph_fieldAccessorTable
             .ensureFieldAccessorsInitialized(
-                com.google.cloud.documentai.v1beta2.Document.Page.Token.class,
-                com.google.cloud.documentai.v1beta2.Document.Page.Token.Builder.class);
+                com.google.cloud.documentai.v1beta2.Document.Page.Paragraph.class,
+                com.google.cloud.documentai.v1beta2.Document.Page.Paragraph.Builder.class);
       }
 
-      public interface DetectedBreakOrBuilder
-          extends
-          // @@protoc_insertion_point(interface_extends:google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak)
-          com.google.protobuf.MessageOrBuilder {
-
-        /**
-         *
-         *
-         * 
-         * Detected break type.
-         * 

-         *
-         * .google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak.Type type = 1;
-         * 
-         *
-         * @return The enum numeric value on the wire for type.
-         */
-        int getTypeValue();
-        /**
-         *
-         *
-         * 
-         * Detected break type.
-         * 

-         *
-         * .google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak.Type type = 1;
-         * 
-         *
-         * @return The type.
-         */
-        com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak.Type getType();
+      public static final int LAYOUT_FIELD_NUMBER = 1;
+      private com.google.cloud.documentai.v1beta2.Document.Page.Layout layout_;
+      /**
+       *
+       *
+       * 
+       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+       * [Paragraph][google.cloud.documentai.v1beta2.Document.Page.Paragraph].
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+       *
+       * @return Whether the layout field is set.
+       */
+      @java.lang.Override
+      public boolean hasLayout() {
+        return layout_ != null;
       }
       /**
        *
        *
        * 
-       * Detected break at the end of a [Token][google.cloud.documentai.v1beta2.Document.Page.Token].
+       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+       * [Paragraph][google.cloud.documentai.v1beta2.Document.Page.Paragraph].
        * 

        *
-       * Protobuf type {@code google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak}
+       * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+       *
+       * @return The layout.
        */
-      public static final class DetectedBreak extends com.google.protobuf.GeneratedMessageV3
-          implements
-          // @@protoc_insertion_point(message_implements:google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak)
-          DetectedBreakOrBuilder {
-        private static final long serialVersionUID = 0L;
-        // Use DetectedBreak.newBuilder() to construct.
-        private DetectedBreak(com.google.protobuf.GeneratedMessageV3.Builder builder) {
-          super(builder);
-        }
+      @java.lang.Override
+      public com.google.cloud.documentai.v1beta2.Document.Page.Layout getLayout() {
+        return layout_ == null
+            ? com.google.cloud.documentai.v1beta2.Document.Page.Layout.getDefaultInstance()
+            : layout_;
+      }
+      /**
+       *
+       *
+       * 
+       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+       * [Paragraph][google.cloud.documentai.v1beta2.Document.Page.Paragraph].
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+       */
+      @java.lang.Override
+      public com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder
+          getLayoutOrBuilder() {
+        return layout_ == null
+            ? com.google.cloud.documentai.v1beta2.Document.Page.Layout.getDefaultInstance()
+            : layout_;
+      }
 
-        private DetectedBreak() {
-          type_ = 0;
-        }
+      public static final int DETECTED_LANGUAGES_FIELD_NUMBER = 2;
 
-        @java.lang.Override
-        @SuppressWarnings({"unused"})
-        protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
-          return new DetectedBreak();
-        }
+      @SuppressWarnings("serial")
+      private java.util.List
+          detectedLanguages_;
+      /**
+       *
+       *
+       * 
+       * A list of detected languages together with confidence.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
+       * 
+       */
+      @java.lang.Override
+      public java.util.List
+          getDetectedLanguagesList() {
+        return detectedLanguages_;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of detected languages together with confidence.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
+       * 
+       */
+      @java.lang.Override
+      public java.util.List<
+              ? extends com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>
+          getDetectedLanguagesOrBuilderList() {
+        return detectedLanguages_;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of detected languages together with confidence.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
+       * 
+       */
+      @java.lang.Override
+      public int getDetectedLanguagesCount() {
+        return detectedLanguages_.size();
+      }
+      /**
+       *
+       *
+       * 
+       * A list of detected languages together with confidence.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
+       * 
+       */
+      @java.lang.Override
+      public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage
+          getDetectedLanguages(int index) {
+        return detectedLanguages_.get(index);
+      }
+      /**
+       *
+       *
+       * 
+       * A list of detected languages together with confidence.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
+       * 
+       */
+      @java.lang.Override
+      public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder
+          getDetectedLanguagesOrBuilder(int index) {
+        return detectedLanguages_.get(index);
+      }
 
-        public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
-          return com.google.cloud.documentai.v1beta2.DocumentProto
-              .internal_static_google_cloud_documentai_v1beta2_Document_Page_Token_DetectedBreak_descriptor;
-        }
+      public static final int PROVENANCE_FIELD_NUMBER = 3;
+      private com.google.cloud.documentai.v1beta2.Document.Provenance provenance_;
+      /**
+       *
+       *
+       * 
+       * The  history of this annotation.
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 3 [deprecated = true];
+       * 
+       *
+       * @deprecated google.cloud.documentai.v1beta2.Document.Page.Paragraph.provenance is
+       *     deprecated. See google/cloud/documentai/v1beta2/document.proto;l=246
+       * @return Whether the provenance field is set.
+       */
+      @java.lang.Override
+      @java.lang.Deprecated
+      public boolean hasProvenance() {
+        return provenance_ != null;
+      }
+      /**
+       *
+       *
+       * 
+       * The  history of this annotation.
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 3 [deprecated = true];
+       * 
+       *
+       * @deprecated google.cloud.documentai.v1beta2.Document.Page.Paragraph.provenance is
+       *     deprecated. See google/cloud/documentai/v1beta2/document.proto;l=246
+       * @return The provenance.
+       */
+      @java.lang.Override
+      @java.lang.Deprecated
+      public com.google.cloud.documentai.v1beta2.Document.Provenance getProvenance() {
+        return provenance_ == null
+            ? com.google.cloud.documentai.v1beta2.Document.Provenance.getDefaultInstance()
+            : provenance_;
+      }
+      /**
+       *
+       *
+       * 
+       * The  history of this annotation.
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 3 [deprecated = true];
+       * 
+       */
+      @java.lang.Override
+      @java.lang.Deprecated
+      public com.google.cloud.documentai.v1beta2.Document.ProvenanceOrBuilder
+          getProvenanceOrBuilder() {
+        return provenance_ == null
+            ? com.google.cloud.documentai.v1beta2.Document.Provenance.getDefaultInstance()
+            : provenance_;
+      }
 
-        @java.lang.Override
-        protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
-            internalGetFieldAccessorTable() {
-          return com.google.cloud.documentai.v1beta2.DocumentProto
-              .internal_static_google_cloud_documentai_v1beta2_Document_Page_Token_DetectedBreak_fieldAccessorTable
-              .ensureFieldAccessorsInitialized(
-                  com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak.class,
-                  com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak.Builder
-                      .class);
-        }
+      private byte memoizedIsInitialized = -1;
 
-        /**
-         *
-         *
-         * 
-         * Enum to denote the type of break found.
-         * 

-         *
-         * Protobuf enum {@code
-         * google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak.Type}
-         */
-        public enum Type implements com.google.protobuf.ProtocolMessageEnum {
-          /**
-           *
-           *
-           * 
-           * Unspecified break type.
-           * 

-           *
-           * TYPE_UNSPECIFIED = 0;
-           */
-          TYPE_UNSPECIFIED(0),
-          /**
-           *
-           *
-           * 
-           * A single whitespace.
-           * 

-           *
-           * SPACE = 1;
-           */
-          SPACE(1),
-          /**
-           *
-           *
-           * 
-           * A wider whitespace.
-           * 

-           *
-           * WIDE_SPACE = 2;
-           */
-          WIDE_SPACE(2),
-          /**
-           *
-           *
-           * 
-           * A hyphen that indicates that a token has been split across lines.
-           * 

-           *
-           * HYPHEN = 3;
-           */
-          HYPHEN(3),
-          UNRECOGNIZED(-1),
-          ;
+      @java.lang.Override
+      public final boolean isInitialized() {
+        byte isInitialized = memoizedIsInitialized;
+        if (isInitialized == 1) return true;
+        if (isInitialized == 0) return false;
 
-          /**
-           *
-           *
-           * 
-           * Unspecified break type.
-           * 

-           *
-           * TYPE_UNSPECIFIED = 0;
-           */
-          public static final int TYPE_UNSPECIFIED_VALUE = 0;
-          /**
-           *
-           *
-           * 
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+                        input.readMessage(
+                            com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage
+                                .parser(),
+                            extensionRegistry);
+                    if (detectedLanguagesBuilder_ == null) {
+                      ensureDetectedLanguagesIsMutable();
+                      detectedLanguages_.add(m);
+                    } else {
+                      detectedLanguagesBuilder_.addMessage(m);
+                    }
+                    break;
+                  } // case 18
+                case 26:
+                  {
+                    input.readMessage(getProvenanceFieldBuilder().getBuilder(), extensionRegistry);
+                    bitField0_ |= 0x00000004;
+                    break;
+                  } // case 26
+                default:
+                  {
+                    if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                      done = true; // was an endgroup tag
+                    }
+                    break;
+                  } // default:
+              } // switch (tag)
+            } // while (!done)
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.unwrapIOException();
+          } finally {
+            onChanged();
+          } // finally
+          return this;
         }
 
-        public static com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak
-            parseDelimitedFrom(
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-                throws java.io.IOException {
-          return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
-              PARSER, input, extensionRegistry);
-        }
+        private int bitField0_;
 
-        public static com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak
-            parseFrom(com.google.protobuf.CodedInputStream input) throws java.io.IOException {
-          return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+        private com.google.cloud.documentai.v1beta2.Document.Page.Layout layout_;
+        private com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.documentai.v1beta2.Document.Page.Layout,
+                com.google.cloud.documentai.v1beta2.Document.Page.Layout.Builder,
+                com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder>
+            layoutBuilder_;
+        /**
+         *
+         *
+         * 
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+         * [Paragraph][google.cloud.documentai.v1beta2.Document.Page.Paragraph].
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+         *
+         * @return Whether the layout field is set.
+         */
+        public boolean hasLayout() {
+          return ((bitField0_ & 0x00000001) != 0);
         }
-
-        public static com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak
-            parseFrom(
-                com.google.protobuf.CodedInputStream input,
-                com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-                throws java.io.IOException {
-          return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
-              PARSER, input, extensionRegistry);
+        /**
+         *
+         *
+         * 
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+         * [Paragraph][google.cloud.documentai.v1beta2.Document.Page.Paragraph].
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+         *
+         * @return The layout.
+         */
+        public com.google.cloud.documentai.v1beta2.Document.Page.Layout getLayout() {
+          if (layoutBuilder_ == null) {
+            return layout_ == null
+                ? com.google.cloud.documentai.v1beta2.Document.Page.Layout.getDefaultInstance()
+                : layout_;
+          } else {
+            return layoutBuilder_.getMessage();
+          }
         }
-
-        @java.lang.Override
-        public Builder newBuilderForType() {
-          return newBuilder();
+        /**
+         *
+         *
+         * 
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+         * [Paragraph][google.cloud.documentai.v1beta2.Document.Page.Paragraph].
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+         */
+        public Builder setLayout(com.google.cloud.documentai.v1beta2.Document.Page.Layout value) {
+          if (layoutBuilder_ == null) {
+            if (value == null) {
+              throw new NullPointerException();
+            }
+            layout_ = value;
+          } else {
+            layoutBuilder_.setMessage(value);
+          }
+          bitField0_ |= 0x00000001;
+          onChanged();
+          return this;
         }
-
-        public static Builder newBuilder() {
-          return DEFAULT_INSTANCE.toBuilder();
+        /**
+         *
+         *
+         * 
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+         * [Paragraph][google.cloud.documentai.v1beta2.Document.Page.Paragraph].
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+         */
+        public Builder setLayout(
+            com.google.cloud.documentai.v1beta2.Document.Page.Layout.Builder builderForValue) {
+          if (layoutBuilder_ == null) {
+            layout_ = builderForValue.build();
+          } else {
+            layoutBuilder_.setMessage(builderForValue.build());
+          }
+          bitField0_ |= 0x00000001;
+          onChanged();
+          return this;
         }
-
-        public static Builder newBuilder(
-            com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak prototype) {
-          return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+        /**
+         *
+         *
+         * 
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+         * [Paragraph][google.cloud.documentai.v1beta2.Document.Page.Paragraph].
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+         */
+        public Builder mergeLayout(com.google.cloud.documentai.v1beta2.Document.Page.Layout value) {
+          if (layoutBuilder_ == null) {
+            if (((bitField0_ & 0x00000001) != 0)
+                && layout_ != null
+                && layout_
+                    != com.google.cloud.documentai.v1beta2.Document.Page.Layout
+                        .getDefaultInstance()) {
+              getLayoutBuilder().mergeFrom(value);
+            } else {
+              layout_ = value;
+            }
+          } else {
+            layoutBuilder_.mergeFrom(value);
+          }
+          bitField0_ |= 0x00000001;
+          onChanged();
+          return this;
         }
-
-        @java.lang.Override
-        public Builder toBuilder() {
-          return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+        /**
+         *
+         *
+         * 
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+         * [Paragraph][google.cloud.documentai.v1beta2.Document.Page.Paragraph].
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+         */
+        public Builder clearLayout() {
+          bitField0_ = (bitField0_ & ~0x00000001);
+          layout_ = null;
+          if (layoutBuilder_ != null) {
+            layoutBuilder_.dispose();
+            layoutBuilder_ = null;
+          }
+          onChanged();
+          return this;
         }
-
-        @java.lang.Override
-        protected Builder newBuilderForType(
-            com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
-          Builder builder = new Builder(parent);
-          return builder;
+        /**
+         *
+         *
+         * 
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+         * [Paragraph][google.cloud.documentai.v1beta2.Document.Page.Paragraph].
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+         */
+        public com.google.cloud.documentai.v1beta2.Document.Page.Layout.Builder getLayoutBuilder() {
+          bitField0_ |= 0x00000001;
+          onChanged();
+          return getLayoutFieldBuilder().getBuilder();
         }
         /**
          *
          *
          * 
-         * Detected break at the end of a [Token][google.cloud.documentai.v1beta2.Document.Page.Token].
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+         * [Paragraph][google.cloud.documentai.v1beta2.Document.Page.Paragraph].
          * 

          *
-         * Protobuf type {@code google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak}
+         * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
          */
-        public static final class Builder
-            extends com.google.protobuf.GeneratedMessageV3.Builder
-            implements
-            // @@protoc_insertion_point(builder_implements:google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak)
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-          public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
-            return com.google.cloud.documentai.v1beta2.DocumentProto
-                .internal_static_google_cloud_documentai_v1beta2_Document_Page_Token_DetectedBreak_descriptor;
+        public com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder
+            getLayoutOrBuilder() {
+          if (layoutBuilder_ != null) {
+            return layoutBuilder_.getMessageOrBuilder();
+          } else {
+            return layout_ == null
+                ? com.google.cloud.documentai.v1beta2.Document.Page.Layout.getDefaultInstance()
+                : layout_;
           }
-
-          @java.lang.Override
-          protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
-              internalGetFieldAccessorTable() {
-            return com.google.cloud.documentai.v1beta2.DocumentProto
-                .internal_static_google_cloud_documentai_v1beta2_Document_Page_Token_DetectedBreak_fieldAccessorTable
-                .ensureFieldAccessorsInitialized(
-                    com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak.class,
-                    com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak.Builder
-                        .class);
+        }
+        /**
+         *
+         *
+         * 
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+         * [Paragraph][google.cloud.documentai.v1beta2.Document.Page.Paragraph].
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+         */
+        private com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.documentai.v1beta2.Document.Page.Layout,
+                com.google.cloud.documentai.v1beta2.Document.Page.Layout.Builder,
+                com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder>
+            getLayoutFieldBuilder() {
+          if (layoutBuilder_ == null) {
+            layoutBuilder_ =
+                new com.google.protobuf.SingleFieldBuilderV3<
+                    com.google.cloud.documentai.v1beta2.Document.Page.Layout,
+                    com.google.cloud.documentai.v1beta2.Document.Page.Layout.Builder,
+                    com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder>(
+                    getLayout(), getParentForChildren(), isClean());
+            layout_ = null;
           }
+          return layoutBuilder_;
+        }
 
-          // Construct using
-          // com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak.newBuilder()
-          private Builder() {}
+        private java.util.List
+            detectedLanguages_ = java.util.Collections.emptyList();
 
-          private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
-            super(parent);
+        private void ensureDetectedLanguagesIsMutable() {
+          if (!((bitField0_ & 0x00000002) != 0)) {
+            detectedLanguages_ =
+                new java.util.ArrayList<
+                    com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage>(
+                    detectedLanguages_);
+            bitField0_ |= 0x00000002;
           }
+        }
 
-          @java.lang.Override
-          public Builder clear() {
-            super.clear();
-            bitField0_ = 0;
-            type_ = 0;
-            return this;
-          }
+        private com.google.protobuf.RepeatedFieldBuilderV3<
+                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage,
+                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder,
+                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>
+            detectedLanguagesBuilder_;
 
-          @java.lang.Override
-          public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
-            return com.google.cloud.documentai.v1beta2.DocumentProto
-                .internal_static_google_cloud_documentai_v1beta2_Document_Page_Token_DetectedBreak_descriptor;
+        /**
+         *
+         *
+         * 
+         * A list of detected languages together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
+         * 
+         */
+        public java.util.List
+            getDetectedLanguagesList() {
+          if (detectedLanguagesBuilder_ == null) {
+            return java.util.Collections.unmodifiableList(detectedLanguages_);
+          } else {
+            return detectedLanguagesBuilder_.getMessageList();
           }
-
-          @java.lang.Override
-          public com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak
-              getDefaultInstanceForType() {
-            return com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak
-                .getDefaultInstance();
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
+         * 
+         */
+        public int getDetectedLanguagesCount() {
+          if (detectedLanguagesBuilder_ == null) {
+            return detectedLanguages_.size();
+          } else {
+            return detectedLanguagesBuilder_.getCount();
           }
-
-          @java.lang.Override
-          public com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak build() {
-            com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak result =
-                buildPartial();
-            if (!result.isInitialized()) {
-              throw newUninitializedMessageException(result);
-            }
-            return result;
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
+         * 
+         */
+        public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage
+            getDetectedLanguages(int index) {
+          if (detectedLanguagesBuilder_ == null) {
+            return detectedLanguages_.get(index);
+          } else {
+            return detectedLanguagesBuilder_.getMessage(index);
           }
-
-          @java.lang.Override
-          public com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak
-              buildPartial() {
-            com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak result =
-                new com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak(this);
-            if (bitField0_ != 0) {
-              buildPartial0(result);
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
+         * 
+         */
+        public Builder setDetectedLanguages(
+            int index, com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value) {
+          if (detectedLanguagesBuilder_ == null) {
+            if (value == null) {
+              throw new NullPointerException();
             }
-            onBuilt();
-            return result;
-          }
-
-          private void buildPartial0(
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-          @java.lang.Override
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-
-          @java.lang.Override
-          public Builder setField(
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-            return super.setField(field, value);
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-
-          @java.lang.Override
-          public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
-            return super.clearField(field);
-          }
-
-          @java.lang.Override
-          public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
-            return super.clearOneof(oneof);
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-
-          @java.lang.Override
-          public Builder setRepeatedField(
-              com.google.protobuf.Descriptors.FieldDescriptor field,
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-              java.lang.Object value) {
-            return super.setRepeatedField(field, index, value);
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-
-          @java.lang.Override
-          public Builder addRepeatedField(
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-            return super.addRepeatedField(field, value);
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-
-          @java.lang.Override
-          public Builder mergeFrom(com.google.protobuf.Message other) {
-            if (other
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-              return mergeFrom(
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-            } else {
-              super.mergeFrom(other);
-              return this;
-            }
-          }
-
-          public Builder mergeFrom(
-              com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak other) {
-            if (other
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-                    .getDefaultInstance()) return this;
-            if (other.type_ != 0) {
-              setTypeValue(other.getTypeValue());
-            }
-            this.mergeUnknownFields(other.getUnknownFields());
+            ensureDetectedLanguagesIsMutable();
+            detectedLanguages_.set(index, value);
             onChanged();
-            return this;
+          } else {
+            detectedLanguagesBuilder_.setMessage(index, value);
           }
-
-          @java.lang.Override
-          public final boolean isInitialized() {
-            return true;
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
+         * 
+         */
+        public Builder setDetectedLanguages(
+            int index,
+            com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
+                builderForValue) {
+          if (detectedLanguagesBuilder_ == null) {
+            ensureDetectedLanguagesIsMutable();
+            detectedLanguages_.set(index, builderForValue.build());
+            onChanged();
+          } else {
+            detectedLanguagesBuilder_.setMessage(index, builderForValue.build());
           }
-
-          @java.lang.Override
-          public Builder mergeFrom(
-              com.google.protobuf.CodedInputStream input,
-              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-              throws java.io.IOException {
-            if (extensionRegistry == null) {
-              throw new java.lang.NullPointerException();
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
+         * 
+         */
+        public Builder addDetectedLanguages(
+            com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value) {
+          if (detectedLanguagesBuilder_ == null) {
+            if (value == null) {
+              throw new NullPointerException();
             }
-            try {
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-                    done = true;
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-                      bitField0_ |= 0x00000001;
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-                      break;
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-            return this;
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-
-          private int bitField0_;
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-           * @return This builder for chaining.
-           */
-          public Builder setTypeValue(int value) {
-            type_ = value;
-            bitField0_ |= 0x00000001;
+            ensureDetectedLanguagesIsMutable();
+            detectedLanguages_.add(value);
             onChanged();
-            return this;
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-          /**
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-           *
-           * 
-           * Detected break type.
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-           *
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-            return result == null
-                ? com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak.Type
-                    .UNRECOGNIZED
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+            detectedLanguagesBuilder_.addMessage(value);
           }
-          /**
-           *
-           *
-           * 
-           * Detected break type.
-           * 

-           *
-           * .google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak.Type type = 1;
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-           * @param value The type to set.
-           * @return This builder for chaining.
-           */
-          public Builder setType(
-              com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak.Type value) {
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
+         * 
+         */
+        public Builder addDetectedLanguages(
+            int index, com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value) {
+          if (detectedLanguagesBuilder_ == null) {
             if (value == null) {
               throw new NullPointerException();
             }
-            bitField0_ |= 0x00000001;
-            type_ = value.getNumber();
+            ensureDetectedLanguagesIsMutable();
+            detectedLanguages_.add(index, value);
             onChanged();
-            return this;
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+            detectedLanguagesBuilder_.addMessage(index, value);
           }
-          /**
-           *
-           *
-           * 
-           * Detected break type.
-           * 

-           *
-           * .google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak.Type type = 1;
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-           *
-           * @return This builder for chaining.
-           */
-          public Builder clearType() {
-            bitField0_ = (bitField0_ & ~0x00000001);
-            type_ = 0;
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
+         * 
+         */
+        public Builder addDetectedLanguages(
+            com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
+                builderForValue) {
+          if (detectedLanguagesBuilder_ == null) {
+            ensureDetectedLanguagesIsMutable();
+            detectedLanguages_.add(builderForValue.build());
             onChanged();
-            return this;
+          } else {
+            detectedLanguagesBuilder_.addMessage(builderForValue.build());
           }
-
-          @java.lang.Override
-          public final Builder setUnknownFields(
-              final com.google.protobuf.UnknownFieldSet unknownFields) {
-            return super.setUnknownFields(unknownFields);
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
+         * 
+         */
+        public Builder addDetectedLanguages(
+            int index,
+            com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
+                builderForValue) {
+          if (detectedLanguagesBuilder_ == null) {
+            ensureDetectedLanguagesIsMutable();
+            detectedLanguages_.add(index, builderForValue.build());
+            onChanged();
+          } else {
+            detectedLanguagesBuilder_.addMessage(index, builderForValue.build());
           }
-
-          @java.lang.Override
-          public final Builder mergeUnknownFields(
-              final com.google.protobuf.UnknownFieldSet unknownFields) {
-            return super.mergeUnknownFields(unknownFields);
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
+         * 
+         */
+        public Builder addAllDetectedLanguages(
+            java.lang.Iterable<
+                    ? extends com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage>
+                values) {
+          if (detectedLanguagesBuilder_ == null) {
+            ensureDetectedLanguagesIsMutable();
+            com.google.protobuf.AbstractMessageLite.Builder.addAll(values, detectedLanguages_);
+            onChanged();
+          } else {
+            detectedLanguagesBuilder_.addAllMessages(values);
           }
-
-          // @@protoc_insertion_point(builder_scope:google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak)
+          return this;
         }
-
-        // @@protoc_insertion_point(class_scope:google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak)
-        private static final com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak
-            DEFAULT_INSTANCE;
-
-        static {
-          DEFAULT_INSTANCE =
-              new com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak();
+        /**
+         *
+         *
+         * 
+         * A list of detected languages together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
+         * 
+         */
+        public Builder clearDetectedLanguages() {
+          if (detectedLanguagesBuilder_ == null) {
+            detectedLanguages_ = java.util.Collections.emptyList();
+            bitField0_ = (bitField0_ & ~0x00000002);
+            onChanged();
+          } else {
+            detectedLanguagesBuilder_.clear();
+          }
+          return this;
         }
-
-        public static com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak
-            getDefaultInstance() {
-          return DEFAULT_INSTANCE;
+        /**
+         *
+         *
+         * 
+         * A list of detected languages together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
+         * 
+         */
+        public Builder removeDetectedLanguages(int index) {
+          if (detectedLanguagesBuilder_ == null) {
+            ensureDetectedLanguagesIsMutable();
+            detectedLanguages_.remove(index);
+            onChanged();
+          } else {
+            detectedLanguagesBuilder_.remove(index);
+          }
+          return this;
         }
-
-        private static final com.google.protobuf.Parser PARSER =
-            new com.google.protobuf.AbstractParser() {
-              @java.lang.Override
-              public DetectedBreak parsePartialFrom(
-                  com.google.protobuf.CodedInputStream input,
-                  com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-                  throws com.google.protobuf.InvalidProtocolBufferException {
-                Builder builder = newBuilder();
-                try {
-                  builder.mergeFrom(input, extensionRegistry);
-                } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-                  throw e.setUnfinishedMessage(builder.buildPartial());
-                } catch (com.google.protobuf.UninitializedMessageException e) {
-                  throw e.asInvalidProtocolBufferException()
-                      .setUnfinishedMessage(builder.buildPartial());
-                } catch (java.io.IOException e) {
-                  throw new com.google.protobuf.InvalidProtocolBufferException(e)
-                      .setUnfinishedMessage(builder.buildPartial());
-                }
-                return builder.buildPartial();
-              }
-            };
-
-        public static com.google.protobuf.Parser parser() {
-          return PARSER;
+        /**
+         *
+         *
+         * 
+         * A list of detected languages together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
+         * 
+         */
+        public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
+            getDetectedLanguagesBuilder(int index) {
+          return getDetectedLanguagesFieldBuilder().getBuilder(index);
         }
-
-        @java.lang.Override
-        public com.google.protobuf.Parser getParserForType() {
-          return PARSER;
+        /**
+         *
+         *
+         * 
+         * A list of detected languages together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
+         * 
+         */
+        public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder
+            getDetectedLanguagesOrBuilder(int index) {
+          if (detectedLanguagesBuilder_ == null) {
+            return detectedLanguages_.get(index);
+          } else {
+            return detectedLanguagesBuilder_.getMessageOrBuilder(index);
+          }
         }
-
-        @java.lang.Override
-        public com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak
-            getDefaultInstanceForType() {
-          return DEFAULT_INSTANCE;
+        /**
+         *
+         *
+         * 
+         * A list of detected languages together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
+         * 
+         */
+        public java.util.List<
+                ? extends
+                    com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>
+            getDetectedLanguagesOrBuilderList() {
+          if (detectedLanguagesBuilder_ != null) {
+            return detectedLanguagesBuilder_.getMessageOrBuilderList();
+          } else {
+            return java.util.Collections.unmodifiableList(detectedLanguages_);
+          }
         }
-      }
-
-      public static final int LAYOUT_FIELD_NUMBER = 1;
-      private com.google.cloud.documentai.v1beta2.Document.Page.Layout layout_;
-      /**
-       *
-       *
-       * 
-       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [Token][google.cloud.documentai.v1beta2.Document.Page.Token].
-       * 

-       *
-       * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
-       *
-       * @return Whether the layout field is set.
-       */
-      @java.lang.Override
-      public boolean hasLayout() {
-        return layout_ != null;
-      }
-      /**
-       *
-       *
+        /**
+         *
+         *
+         * 
+         * A list of detected languages together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
+         * 
+         */
+        public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
+            addDetectedLanguagesBuilder() {
+          return getDetectedLanguagesFieldBuilder()
+              .addBuilder(
+                  com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage
+                      .getDefaultInstance());
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
+         * 
+         */
+        public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
+            addDetectedLanguagesBuilder(int index) {
+          return getDetectedLanguagesFieldBuilder()
+              .addBuilder(
+                  index,
+                  com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage
+                      .getDefaultInstance());
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
+         * 
+         */
+        public java.util.List<
+                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder>
+            getDetectedLanguagesBuilderList() {
+          return getDetectedLanguagesFieldBuilder().getBuilderList();
+        }
+
+        private com.google.protobuf.RepeatedFieldBuilderV3<
+                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage,
+                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder,
+                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>
+            getDetectedLanguagesFieldBuilder() {
+          if (detectedLanguagesBuilder_ == null) {
+            detectedLanguagesBuilder_ =
+                new com.google.protobuf.RepeatedFieldBuilderV3<
+                    com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage,
+                    com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder,
+                    com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>(
+                    detectedLanguages_,
+                    ((bitField0_ & 0x00000002) != 0),
+                    getParentForChildren(),
+                    isClean());
+            detectedLanguages_ = null;
+          }
+          return detectedLanguagesBuilder_;
+        }
+
+        private com.google.cloud.documentai.v1beta2.Document.Provenance provenance_;
+        private com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.documentai.v1beta2.Document.Provenance,
+                com.google.cloud.documentai.v1beta2.Document.Provenance.Builder,
+                com.google.cloud.documentai.v1beta2.Document.ProvenanceOrBuilder>
+            provenanceBuilder_;
+        /**
+         *
+         *
+         * 
+         * The  history of this annotation.
+         * 

+         *
+         * 
+         * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 3 [deprecated = true];
+         * 
+         *
+         * @deprecated google.cloud.documentai.v1beta2.Document.Page.Paragraph.provenance is
+         *     deprecated. See google/cloud/documentai/v1beta2/document.proto;l=246
+         * @return Whether the provenance field is set.
+         */
+        @java.lang.Deprecated
+        public boolean hasProvenance() {
+          return ((bitField0_ & 0x00000004) != 0);
+        }
+        /**
+         *
+         *
+         * 
+         * The  history of this annotation.
+         * 

+         *
+         * 
+         * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 3 [deprecated = true];
+         * 
+         *
+         * @deprecated google.cloud.documentai.v1beta2.Document.Page.Paragraph.provenance is
+         *     deprecated. See google/cloud/documentai/v1beta2/document.proto;l=246
+         * @return The provenance.
+         */
+        @java.lang.Deprecated
+        public com.google.cloud.documentai.v1beta2.Document.Provenance getProvenance() {
+          if (provenanceBuilder_ == null) {
+            return provenance_ == null
+                ? com.google.cloud.documentai.v1beta2.Document.Provenance.getDefaultInstance()
+                : provenance_;
+          } else {
+            return provenanceBuilder_.getMessage();
+          }
+        }
+        /**
+         *
+         *
+         * 
+         * The  history of this annotation.
+         * 

+         *
+         * 
+         * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 3 [deprecated = true];
+         * 
+         */
+        @java.lang.Deprecated
+        public Builder setProvenance(
+            com.google.cloud.documentai.v1beta2.Document.Provenance value) {
+          if (provenanceBuilder_ == null) {
+            if (value == null) {
+              throw new NullPointerException();
+            }
+            provenance_ = value;
+          } else {
+            provenanceBuilder_.setMessage(value);
+          }
+          bitField0_ |= 0x00000004;
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * The  history of this annotation.
+         * 

+         *
+         * 
+         * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 3 [deprecated = true];
+         * 
+         */
+        @java.lang.Deprecated
+        public Builder setProvenance(
+            com.google.cloud.documentai.v1beta2.Document.Provenance.Builder builderForValue) {
+          if (provenanceBuilder_ == null) {
+            provenance_ = builderForValue.build();
+          } else {
+            provenanceBuilder_.setMessage(builderForValue.build());
+          }
+          bitField0_ |= 0x00000004;
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * The  history of this annotation.
+         * 

+         *
+         * 
+         * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 3 [deprecated = true];
+         * 
+         */
+        @java.lang.Deprecated
+        public Builder mergeProvenance(
+            com.google.cloud.documentai.v1beta2.Document.Provenance value) {
+          if (provenanceBuilder_ == null) {
+            if (((bitField0_ & 0x00000004) != 0)
+                && provenance_ != null
+                && provenance_
+                    != com.google.cloud.documentai.v1beta2.Document.Provenance
+                        .getDefaultInstance()) {
+              getProvenanceBuilder().mergeFrom(value);
+            } else {
+              provenance_ = value;
+            }
+          } else {
+            provenanceBuilder_.mergeFrom(value);
+          }
+          bitField0_ |= 0x00000004;
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * The  history of this annotation.
+         * 

+         *
+         * 
+         * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 3 [deprecated = true];
+         * 
+         */
+        @java.lang.Deprecated
+        public Builder clearProvenance() {
+          bitField0_ = (bitField0_ & ~0x00000004);
+          provenance_ = null;
+          if (provenanceBuilder_ != null) {
+            provenanceBuilder_.dispose();
+            provenanceBuilder_ = null;
+          }
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * The  history of this annotation.
+         * 

+         *
+         * 
+         * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 3 [deprecated = true];
+         * 
+         */
+        @java.lang.Deprecated
+        public com.google.cloud.documentai.v1beta2.Document.Provenance.Builder
+            getProvenanceBuilder() {
+          bitField0_ |= 0x00000004;
+          onChanged();
+          return getProvenanceFieldBuilder().getBuilder();
+        }
+        /**
+         *
+         *
+         * 
+         * The  history of this annotation.
+         * 

+         *
+         * 
+         * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 3 [deprecated = true];
+         * 
+         */
+        @java.lang.Deprecated
+        public com.google.cloud.documentai.v1beta2.Document.ProvenanceOrBuilder
+            getProvenanceOrBuilder() {
+          if (provenanceBuilder_ != null) {
+            return provenanceBuilder_.getMessageOrBuilder();
+          } else {
+            return provenance_ == null
+                ? com.google.cloud.documentai.v1beta2.Document.Provenance.getDefaultInstance()
+                : provenance_;
+          }
+        }
+        /**
+         *
+         *
+         * 
+         * The  history of this annotation.
+         * 

+         *
+         * 
+         * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 3 [deprecated = true];
+         * 
+         */
+        private com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.documentai.v1beta2.Document.Provenance,
+                com.google.cloud.documentai.v1beta2.Document.Provenance.Builder,
+                com.google.cloud.documentai.v1beta2.Document.ProvenanceOrBuilder>
+            getProvenanceFieldBuilder() {
+          if (provenanceBuilder_ == null) {
+            provenanceBuilder_ =
+                new com.google.protobuf.SingleFieldBuilderV3<
+                    com.google.cloud.documentai.v1beta2.Document.Provenance,
+                    com.google.cloud.documentai.v1beta2.Document.Provenance.Builder,
+                    com.google.cloud.documentai.v1beta2.Document.ProvenanceOrBuilder>(
+                    getProvenance(), getParentForChildren(), isClean());
+            provenance_ = null;
+          }
+          return provenanceBuilder_;
+        }
+
+        @java.lang.Override
+        public final Builder setUnknownFields(
+            final com.google.protobuf.UnknownFieldSet unknownFields) {
+          return super.setUnknownFields(unknownFields);
+        }
+
+        @java.lang.Override
+        public final Builder mergeUnknownFields(
+            final com.google.protobuf.UnknownFieldSet unknownFields) {
+          return super.mergeUnknownFields(unknownFields);
+        }
+
+        // @@protoc_insertion_point(builder_scope:google.cloud.documentai.v1beta2.Document.Page.Paragraph)
+      }
+
+      // @@protoc_insertion_point(class_scope:google.cloud.documentai.v1beta2.Document.Page.Paragraph)
+      private static final com.google.cloud.documentai.v1beta2.Document.Page.Paragraph
+          DEFAULT_INSTANCE;
+
+      static {
+        DEFAULT_INSTANCE = new com.google.cloud.documentai.v1beta2.Document.Page.Paragraph();
+      }
+
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Paragraph
+          getDefaultInstance() {
+        return DEFAULT_INSTANCE;
+      }
+
+      private static final com.google.protobuf.Parser PARSER =
+          new com.google.protobuf.AbstractParser() {
+            @java.lang.Override
+            public Paragraph parsePartialFrom(
+                com.google.protobuf.CodedInputStream input,
+                com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+                throws com.google.protobuf.InvalidProtocolBufferException {
+              Builder builder = newBuilder();
+              try {
+                builder.mergeFrom(input, extensionRegistry);
+              } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+                throw e.setUnfinishedMessage(builder.buildPartial());
+              } catch (com.google.protobuf.UninitializedMessageException e) {
+                throw e.asInvalidProtocolBufferException()
+                    .setUnfinishedMessage(builder.buildPartial());
+              } catch (java.io.IOException e) {
+                throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                    .setUnfinishedMessage(builder.buildPartial());
+              }
+              return builder.buildPartial();
+            }
+          };
+
+      public static com.google.protobuf.Parser parser() {
+        return PARSER;
+      }
+
+      @java.lang.Override
+      public com.google.protobuf.Parser getParserForType() {
+        return PARSER;
+      }
+
+      @java.lang.Override
+      public com.google.cloud.documentai.v1beta2.Document.Page.Paragraph
+          getDefaultInstanceForType() {
+        return DEFAULT_INSTANCE;
+      }
+    }
+
+    public interface LineOrBuilder
+        extends
+        // @@protoc_insertion_point(interface_extends:google.cloud.documentai.v1beta2.Document.Page.Line)
+        com.google.protobuf.MessageOrBuilder {
+
+      /**
+       *
+       *
+       * 
+       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+       * [Line][google.cloud.documentai.v1beta2.Document.Page.Line].
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+       *
+       * @return Whether the layout field is set.
+       */
+      boolean hasLayout();
+      /**
+       *
+       *
        * 
-       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [Token][google.cloud.documentai.v1beta2.Document.Page.Token].
+       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+       * [Line][google.cloud.documentai.v1beta2.Document.Page.Line].
        * 

        *
        * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
        *
        * @return The layout.
        */
-      @java.lang.Override
-      public com.google.cloud.documentai.v1beta2.Document.Page.Layout getLayout() {
-        return layout_ == null
-            ? com.google.cloud.documentai.v1beta2.Document.Page.Layout.getDefaultInstance()
-            : layout_;
-      }
+      com.google.cloud.documentai.v1beta2.Document.Page.Layout getLayout();
       /**
        *
        *
        * 
-       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [Token][google.cloud.documentai.v1beta2.Document.Page.Token].
+       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+       * [Line][google.cloud.documentai.v1beta2.Document.Page.Line].
        * 

        *
        * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
        */
-      @java.lang.Override
-      public com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder
-          getLayoutOrBuilder() {
-        return layout_ == null
-            ? com.google.cloud.documentai.v1beta2.Document.Page.Layout.getDefaultInstance()
-            : layout_;
-      }
+      com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder getLayoutOrBuilder();
 
-      public static final int DETECTED_BREAK_FIELD_NUMBER = 2;
-      private com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak detectedBreak_;
       /**
        *
        *
        * 
-       * Detected break at the end of a [Token][google.cloud.documentai.v1beta2.Document.Page.Token].
+       * A list of detected languages together with confidence.
        * 

        *
        * 
-       * .google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak detected_break = 2;
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
+       * 
+       */
+      java.util.List
+          getDetectedLanguagesList();
+      /**
+       *
+       *
+       * 
+       * A list of detected languages together with confidence.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
        * 
+       */
+      com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage getDetectedLanguages(
+          int index);
+      /**
        *
-       * @return Whether the detectedBreak field is set.
+       *
+       * 
+       * A list of detected languages together with confidence.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
+       * 
        */
-      @java.lang.Override
-      public boolean hasDetectedBreak() {
-        return detectedBreak_ != null;
-      }
+      int getDetectedLanguagesCount();
       /**
        *
        *
        * 
-       * Detected break at the end of a [Token][google.cloud.documentai.v1beta2.Document.Page.Token].
+       * A list of detected languages together with confidence.
        * 

        *
        * 
-       * .google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak detected_break = 2;
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
        * 
+       */
+      java.util.List<
+              ? extends com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>
+          getDetectedLanguagesOrBuilderList();
+      /**
        *
-       * @return The detectedBreak.
+       *
+       * 
+       * A list of detected languages together with confidence.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
+       * 
        */
-      @java.lang.Override
-      public com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak
-          getDetectedBreak() {
-        return detectedBreak_ == null
-            ? com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak
-                .getDefaultInstance()
-            : detectedBreak_;
-      }
+      com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder
+          getDetectedLanguagesOrBuilder(int index);
+
       /**
        *
        *
        * 
-       * Detected break at the end of a [Token][google.cloud.documentai.v1beta2.Document.Page.Token].
+       * The  history of this annotation.
        * 

        *
        * 
-       * .google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak detected_break = 2;
+       * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 3 [deprecated = true];
+       * 
+       *
+       * @deprecated google.cloud.documentai.v1beta2.Document.Page.Line.provenance is deprecated.
+       *     See google/cloud/documentai/v1beta2/document.proto;l=260
+       * @return Whether the provenance field is set.
+       */
+      @java.lang.Deprecated
+      boolean hasProvenance();
+      /**
+       *
+       *
+       * 
+       * The  history of this annotation.
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 3 [deprecated = true];
+       * 
+       *
+       * @deprecated google.cloud.documentai.v1beta2.Document.Page.Line.provenance is deprecated.
+       *     See google/cloud/documentai/v1beta2/document.proto;l=260
+       * @return The provenance.
+       */
+      @java.lang.Deprecated
+      com.google.cloud.documentai.v1beta2.Document.Provenance getProvenance();
+      /**
+       *
+       *
+       * 
+       * The  history of this annotation.
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 3 [deprecated = true];
        * 
        */
+      @java.lang.Deprecated
+      com.google.cloud.documentai.v1beta2.Document.ProvenanceOrBuilder getProvenanceOrBuilder();
+    }
+    /**
+     *
+     *
+     * 
+     * A collection of tokens that a human would perceive as a line.
+     * Does not cross column boundaries, can be horizontal, vertical, etc.
+     * 

+     *
+     * Protobuf type {@code google.cloud.documentai.v1beta2.Document.Page.Line}
+     */
+    public static final class Line extends com.google.protobuf.GeneratedMessageV3
+        implements
+        // @@protoc_insertion_point(message_implements:google.cloud.documentai.v1beta2.Document.Page.Line)
+        LineOrBuilder {
+      private static final long serialVersionUID = 0L;
+      // Use Line.newBuilder() to construct.
+      private Line(com.google.protobuf.GeneratedMessageV3.Builder builder) {
+        super(builder);
+      }
+
+      private Line() {
+        detectedLanguages_ = java.util.Collections.emptyList();
+      }
+
       @java.lang.Override
-      public com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreakOrBuilder
-          getDetectedBreakOrBuilder() {
-        return detectedBreak_ == null
-            ? com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak
-                .getDefaultInstance()
-            : detectedBreak_;
+      @SuppressWarnings({"unused"})
+      protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+        return new Line();
       }
 
-      public static final int DETECTED_LANGUAGES_FIELD_NUMBER = 3;
+      public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+        return com.google.cloud.documentai.v1beta2.DocumentProto
+            .internal_static_google_cloud_documentai_v1beta2_Document_Page_Line_descriptor;
+      }
+
+      @java.lang.Override
+      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+          internalGetFieldAccessorTable() {
+        return com.google.cloud.documentai.v1beta2.DocumentProto
+            .internal_static_google_cloud_documentai_v1beta2_Document_Page_Line_fieldAccessorTable
+            .ensureFieldAccessorsInitialized(
+                com.google.cloud.documentai.v1beta2.Document.Page.Line.class,
+                com.google.cloud.documentai.v1beta2.Document.Page.Line.Builder.class);
+      }
+
+      public static final int LAYOUT_FIELD_NUMBER = 1;
+      private com.google.cloud.documentai.v1beta2.Document.Page.Layout layout_;
+      /**
+       *
+       *
+       * 
+       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+       * [Line][google.cloud.documentai.v1beta2.Document.Page.Line].
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+       *
+       * @return Whether the layout field is set.
+       */
+      @java.lang.Override
+      public boolean hasLayout() {
+        return layout_ != null;
+      }
+      /**
+       *
+       *
+       * 
+       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+       * [Line][google.cloud.documentai.v1beta2.Document.Page.Line].
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+       *
+       * @return The layout.
+       */
+      @java.lang.Override
+      public com.google.cloud.documentai.v1beta2.Document.Page.Layout getLayout() {
+        return layout_ == null
+            ? com.google.cloud.documentai.v1beta2.Document.Page.Layout.getDefaultInstance()
+            : layout_;
+      }
+      /**
+       *
+       *
+       * 
+       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+       * [Line][google.cloud.documentai.v1beta2.Document.Page.Line].
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+       */
+      @java.lang.Override
+      public com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder
+          getLayoutOrBuilder() {
+        return layout_ == null
+            ? com.google.cloud.documentai.v1beta2.Document.Page.Layout.getDefaultInstance()
+            : layout_;
+      }
+
+      public static final int DETECTED_LANGUAGES_FIELD_NUMBER = 2;
 
       @SuppressWarnings("serial")
       private java.util.List
@@ -13652,7 +14415,7 @@ public boolean hasDetectedBreak() {
        * 
        *
        * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
        * 
        */
       @java.lang.Override
@@ -13668,7 +14431,7 @@ public boolean hasDetectedBreak() {
        * 
        *
        * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
        * 
        */
       @java.lang.Override
@@ -13685,7 +14448,7 @@ public boolean hasDetectedBreak() {
        * 
        *
        * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
        * 
        */
       @java.lang.Override
@@ -13700,7 +14463,7 @@ public int getDetectedLanguagesCount() {
        * 
        *
        * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
        * 
        */
       @java.lang.Override
@@ -13716,7 +14479,7 @@ public int getDetectedLanguagesCount() {
        * 
        *
        * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
        * 
        */
       @java.lang.Override
@@ -13725,8 +14488,72 @@ public int getDetectedLanguagesCount() {
         return detectedLanguages_.get(index);
       }
 
-      private byte memoizedIsInitialized = -1;
-
+      public static final int PROVENANCE_FIELD_NUMBER = 3;
+      private com.google.cloud.documentai.v1beta2.Document.Provenance provenance_;
+      /**
+       *
+       *
+       * 
+       * The  history of this annotation.
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 3 [deprecated = true];
+       * 
+       *
+       * @deprecated google.cloud.documentai.v1beta2.Document.Page.Line.provenance is deprecated.
+       *     See google/cloud/documentai/v1beta2/document.proto;l=260
+       * @return Whether the provenance field is set.
+       */
+      @java.lang.Override
+      @java.lang.Deprecated
+      public boolean hasProvenance() {
+        return provenance_ != null;
+      }
+      /**
+       *
+       *
+       * 
+       * The  history of this annotation.
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 3 [deprecated = true];
+       * 
+       *
+       * @deprecated google.cloud.documentai.v1beta2.Document.Page.Line.provenance is deprecated.
+       *     See google/cloud/documentai/v1beta2/document.proto;l=260
+       * @return The provenance.
+       */
+      @java.lang.Override
+      @java.lang.Deprecated
+      public com.google.cloud.documentai.v1beta2.Document.Provenance getProvenance() {
+        return provenance_ == null
+            ? com.google.cloud.documentai.v1beta2.Document.Provenance.getDefaultInstance()
+            : provenance_;
+      }
+      /**
+       *
+       *
+       * 
+       * The  history of this annotation.
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 3 [deprecated = true];
+       * 
+       */
+      @java.lang.Override
+      @java.lang.Deprecated
+      public com.google.cloud.documentai.v1beta2.Document.ProvenanceOrBuilder
+          getProvenanceOrBuilder() {
+        return provenance_ == null
+            ? com.google.cloud.documentai.v1beta2.Document.Provenance.getDefaultInstance()
+            : provenance_;
+      }
+
+      private byte memoizedIsInitialized = -1;
+
       @java.lang.Override
       public final boolean isInitialized() {
         byte isInitialized = memoizedIsInitialized;
@@ -13742,11 +14569,11 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
         if (layout_ != null) {
           output.writeMessage(1, getLayout());
         }
-        if (detectedBreak_ != null) {
-          output.writeMessage(2, getDetectedBreak());
-        }
         for (int i = 0; i < detectedLanguages_.size(); i++) {
-          output.writeMessage(3, detectedLanguages_.get(i));
+          output.writeMessage(2, detectedLanguages_.get(i));
+        }
+        if (provenance_ != null) {
+          output.writeMessage(3, getProvenance());
         }
         getUnknownFields().writeTo(output);
       }
@@ -13760,13 +14587,13 @@ public int getSerializedSize() {
         if (layout_ != null) {
           size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, getLayout());
         }
-        if (detectedBreak_ != null) {
-          size += com.google.protobuf.CodedOutputStream.computeMessageSize(2, getDetectedBreak());
-        }
         for (int i = 0; i < detectedLanguages_.size(); i++) {
           size +=
               com.google.protobuf.CodedOutputStream.computeMessageSize(
-                  3, detectedLanguages_.get(i));
+                  2, detectedLanguages_.get(i));
+        }
+        if (provenance_ != null) {
+          size += com.google.protobuf.CodedOutputStream.computeMessageSize(3, getProvenance());
         }
         size += getUnknownFields().getSerializedSize();
         memoizedSize = size;
@@ -13778,21 +14605,21 @@ public boolean equals(final java.lang.Object obj) {
         if (obj == this) {
           return true;
         }
-        if (!(obj instanceof com.google.cloud.documentai.v1beta2.Document.Page.Token)) {
+        if (!(obj instanceof com.google.cloud.documentai.v1beta2.Document.Page.Line)) {
           return super.equals(obj);
         }
-        com.google.cloud.documentai.v1beta2.Document.Page.Token other =
-            (com.google.cloud.documentai.v1beta2.Document.Page.Token) obj;
+        com.google.cloud.documentai.v1beta2.Document.Page.Line other =
+            (com.google.cloud.documentai.v1beta2.Document.Page.Line) obj;
 
         if (hasLayout() != other.hasLayout()) return false;
         if (hasLayout()) {
           if (!getLayout().equals(other.getLayout())) return false;
         }
-        if (hasDetectedBreak() != other.hasDetectedBreak()) return false;
-        if (hasDetectedBreak()) {
-          if (!getDetectedBreak().equals(other.getDetectedBreak())) return false;
-        }
         if (!getDetectedLanguagesList().equals(other.getDetectedLanguagesList())) return false;
+        if (hasProvenance() != other.hasProvenance()) return false;
+        if (hasProvenance()) {
+          if (!getProvenance().equals(other.getProvenance())) return false;
+        }
         if (!getUnknownFields().equals(other.getUnknownFields())) return false;
         return true;
       }
@@ -13808,84 +14635,84 @@ public int hashCode() {
           hash = (37 * hash) + LAYOUT_FIELD_NUMBER;
           hash = (53 * hash) + getLayout().hashCode();
         }
-        if (hasDetectedBreak()) {
-          hash = (37 * hash) + DETECTED_BREAK_FIELD_NUMBER;
-          hash = (53 * hash) + getDetectedBreak().hashCode();
-        }
         if (getDetectedLanguagesCount() > 0) {
           hash = (37 * hash) + DETECTED_LANGUAGES_FIELD_NUMBER;
           hash = (53 * hash) + getDetectedLanguagesList().hashCode();
         }
+        if (hasProvenance()) {
+          hash = (37 * hash) + PROVENANCE_FIELD_NUMBER;
+          hash = (53 * hash) + getProvenance().hashCode();
+        }
         hash = (29 * hash) + getUnknownFields().hashCode();
         memoizedHashCode = hash;
         return hash;
       }
 
-      public static com.google.cloud.documentai.v1beta2.Document.Page.Token parseFrom(
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Line parseFrom(
           java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
         return PARSER.parseFrom(data);
       }
 
-      public static com.google.cloud.documentai.v1beta2.Document.Page.Token parseFrom(
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Line parseFrom(
           java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws com.google.protobuf.InvalidProtocolBufferException {
         return PARSER.parseFrom(data, extensionRegistry);
       }
 
-      public static com.google.cloud.documentai.v1beta2.Document.Page.Token parseFrom(
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Line parseFrom(
           com.google.protobuf.ByteString data)
           throws com.google.protobuf.InvalidProtocolBufferException {
         return PARSER.parseFrom(data);
       }
 
-      public static com.google.cloud.documentai.v1beta2.Document.Page.Token parseFrom(
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Line parseFrom(
           com.google.protobuf.ByteString data,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws com.google.protobuf.InvalidProtocolBufferException {
         return PARSER.parseFrom(data, extensionRegistry);
       }
 
-      public static com.google.cloud.documentai.v1beta2.Document.Page.Token parseFrom(byte[] data)
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Line parseFrom(byte[] data)
           throws com.google.protobuf.InvalidProtocolBufferException {
         return PARSER.parseFrom(data);
       }
 
-      public static com.google.cloud.documentai.v1beta2.Document.Page.Token parseFrom(
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Line parseFrom(
           byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws com.google.protobuf.InvalidProtocolBufferException {
         return PARSER.parseFrom(data, extensionRegistry);
       }
 
-      public static com.google.cloud.documentai.v1beta2.Document.Page.Token parseFrom(
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Line parseFrom(
           java.io.InputStream input) throws java.io.IOException {
         return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
       }
 
-      public static com.google.cloud.documentai.v1beta2.Document.Page.Token parseFrom(
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Line parseFrom(
           java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws java.io.IOException {
         return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
             PARSER, input, extensionRegistry);
       }
 
-      public static com.google.cloud.documentai.v1beta2.Document.Page.Token parseDelimitedFrom(
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Line parseDelimitedFrom(
           java.io.InputStream input) throws java.io.IOException {
         return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
       }
 
-      public static com.google.cloud.documentai.v1beta2.Document.Page.Token parseDelimitedFrom(
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Line parseDelimitedFrom(
           java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws java.io.IOException {
         return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
             PARSER, input, extensionRegistry);
       }
 
-      public static com.google.cloud.documentai.v1beta2.Document.Page.Token parseFrom(
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Line parseFrom(
           com.google.protobuf.CodedInputStream input) throws java.io.IOException {
         return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
       }
 
-      public static com.google.cloud.documentai.v1beta2.Document.Page.Token parseFrom(
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Line parseFrom(
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws java.io.IOException {
@@ -13903,7 +14730,7 @@ public static Builder newBuilder() {
       }
 
       public static Builder newBuilder(
-          com.google.cloud.documentai.v1beta2.Document.Page.Token prototype) {
+          com.google.cloud.documentai.v1beta2.Document.Page.Line prototype) {
         return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
       }
 
@@ -13922,32 +14749,33 @@ protected Builder newBuilderForType(
        *
        *
        * 
-       * A detected token.
+       * A collection of tokens that a human would perceive as a line.
+       * Does not cross column boundaries, can be horizontal, vertical, etc.
        * 

        *
-       * Protobuf type {@code google.cloud.documentai.v1beta2.Document.Page.Token}
+       * Protobuf type {@code google.cloud.documentai.v1beta2.Document.Page.Line}
        */
       public static final class Builder
           extends com.google.protobuf.GeneratedMessageV3.Builder
           implements
-          // @@protoc_insertion_point(builder_implements:google.cloud.documentai.v1beta2.Document.Page.Token)
-          com.google.cloud.documentai.v1beta2.Document.Page.TokenOrBuilder {
+          // @@protoc_insertion_point(builder_implements:google.cloud.documentai.v1beta2.Document.Page.Line)
+          com.google.cloud.documentai.v1beta2.Document.Page.LineOrBuilder {
         public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
           return com.google.cloud.documentai.v1beta2.DocumentProto
-              .internal_static_google_cloud_documentai_v1beta2_Document_Page_Token_descriptor;
+              .internal_static_google_cloud_documentai_v1beta2_Document_Page_Line_descriptor;
         }
 
         @java.lang.Override
         protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
             internalGetFieldAccessorTable() {
           return com.google.cloud.documentai.v1beta2.DocumentProto
-              .internal_static_google_cloud_documentai_v1beta2_Document_Page_Token_fieldAccessorTable
+              .internal_static_google_cloud_documentai_v1beta2_Document_Page_Line_fieldAccessorTable
               .ensureFieldAccessorsInitialized(
-                  com.google.cloud.documentai.v1beta2.Document.Page.Token.class,
-                  com.google.cloud.documentai.v1beta2.Document.Page.Token.Builder.class);
+                  com.google.cloud.documentai.v1beta2.Document.Page.Line.class,
+                  com.google.cloud.documentai.v1beta2.Document.Page.Line.Builder.class);
         }
 
-        // Construct using com.google.cloud.documentai.v1beta2.Document.Page.Token.newBuilder()
+        // Construct using com.google.cloud.documentai.v1beta2.Document.Page.Line.newBuilder()
         private Builder() {}
 
         private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
@@ -13963,35 +14791,35 @@ public Builder clear() {
             layoutBuilder_.dispose();
             layoutBuilder_ = null;
           }
-          detectedBreak_ = null;
-          if (detectedBreakBuilder_ != null) {
-            detectedBreakBuilder_.dispose();
-            detectedBreakBuilder_ = null;
-          }
           if (detectedLanguagesBuilder_ == null) {
             detectedLanguages_ = java.util.Collections.emptyList();
           } else {
             detectedLanguages_ = null;
             detectedLanguagesBuilder_.clear();
           }
-          bitField0_ = (bitField0_ & ~0x00000004);
+          bitField0_ = (bitField0_ & ~0x00000002);
+          provenance_ = null;
+          if (provenanceBuilder_ != null) {
+            provenanceBuilder_.dispose();
+            provenanceBuilder_ = null;
+          }
           return this;
         }
 
         @java.lang.Override
         public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
           return com.google.cloud.documentai.v1beta2.DocumentProto
-              .internal_static_google_cloud_documentai_v1beta2_Document_Page_Token_descriptor;
+              .internal_static_google_cloud_documentai_v1beta2_Document_Page_Line_descriptor;
         }
 
         @java.lang.Override
-        public com.google.cloud.documentai.v1beta2.Document.Page.Token getDefaultInstanceForType() {
-          return com.google.cloud.documentai.v1beta2.Document.Page.Token.getDefaultInstance();
+        public com.google.cloud.documentai.v1beta2.Document.Page.Line getDefaultInstanceForType() {
+          return com.google.cloud.documentai.v1beta2.Document.Page.Line.getDefaultInstance();
         }
 
         @java.lang.Override
-        public com.google.cloud.documentai.v1beta2.Document.Page.Token build() {
-          com.google.cloud.documentai.v1beta2.Document.Page.Token result = buildPartial();
+        public com.google.cloud.documentai.v1beta2.Document.Page.Line build() {
+          com.google.cloud.documentai.v1beta2.Document.Page.Line result = buildPartial();
           if (!result.isInitialized()) {
             throw newUninitializedMessageException(result);
           }
@@ -13999,9 +14827,9 @@ public com.google.cloud.documentai.v1beta2.Document.Page.Token build() {
         }
 
         @java.lang.Override
-        public com.google.cloud.documentai.v1beta2.Document.Page.Token buildPartial() {
-          com.google.cloud.documentai.v1beta2.Document.Page.Token result =
-              new com.google.cloud.documentai.v1beta2.Document.Page.Token(this);
+        public com.google.cloud.documentai.v1beta2.Document.Page.Line buildPartial() {
+          com.google.cloud.documentai.v1beta2.Document.Page.Line result =
+              new com.google.cloud.documentai.v1beta2.Document.Page.Line(this);
           buildPartialRepeatedFields(result);
           if (bitField0_ != 0) {
             buildPartial0(result);
@@ -14011,11 +14839,11 @@ public com.google.cloud.documentai.v1beta2.Document.Page.Token buildPartial() {
         }
 
         private void buildPartialRepeatedFields(
-            com.google.cloud.documentai.v1beta2.Document.Page.Token result) {
+            com.google.cloud.documentai.v1beta2.Document.Page.Line result) {
           if (detectedLanguagesBuilder_ == null) {
-            if (((bitField0_ & 0x00000004) != 0)) {
+            if (((bitField0_ & 0x00000002) != 0)) {
               detectedLanguages_ = java.util.Collections.unmodifiableList(detectedLanguages_);
-              bitField0_ = (bitField0_ & ~0x00000004);
+              bitField0_ = (bitField0_ & ~0x00000002);
             }
             result.detectedLanguages_ = detectedLanguages_;
           } else {
@@ -14023,14 +14851,14 @@ private void buildPartialRepeatedFields(
           }
         }
 
-        private void buildPartial0(com.google.cloud.documentai.v1beta2.Document.Page.Token result) {
+        private void buildPartial0(com.google.cloud.documentai.v1beta2.Document.Page.Line result) {
           int from_bitField0_ = bitField0_;
           if (((from_bitField0_ & 0x00000001) != 0)) {
             result.layout_ = layoutBuilder_ == null ? layout_ : layoutBuilder_.build();
           }
-          if (((from_bitField0_ & 0x00000002) != 0)) {
-            result.detectedBreak_ =
-                detectedBreakBuilder_ == null ? detectedBreak_ : detectedBreakBuilder_.build();
+          if (((from_bitField0_ & 0x00000004) != 0)) {
+            result.provenance_ =
+                provenanceBuilder_ == null ? provenance_ : provenanceBuilder_.build();
           }
         }
 
@@ -14071,28 +14899,25 @@ public Builder addRepeatedField(
 
         @java.lang.Override
         public Builder mergeFrom(com.google.protobuf.Message other) {
-          if (other instanceof com.google.cloud.documentai.v1beta2.Document.Page.Token) {
-            return mergeFrom((com.google.cloud.documentai.v1beta2.Document.Page.Token) other);
+          if (other instanceof com.google.cloud.documentai.v1beta2.Document.Page.Line) {
+            return mergeFrom((com.google.cloud.documentai.v1beta2.Document.Page.Line) other);
           } else {
             super.mergeFrom(other);
             return this;
           }
         }
 
-        public Builder mergeFrom(com.google.cloud.documentai.v1beta2.Document.Page.Token other) {
-          if (other == com.google.cloud.documentai.v1beta2.Document.Page.Token.getDefaultInstance())
+        public Builder mergeFrom(com.google.cloud.documentai.v1beta2.Document.Page.Line other) {
+          if (other == com.google.cloud.documentai.v1beta2.Document.Page.Line.getDefaultInstance())
             return this;
           if (other.hasLayout()) {
             mergeLayout(other.getLayout());
           }
-          if (other.hasDetectedBreak()) {
-            mergeDetectedBreak(other.getDetectedBreak());
-          }
           if (detectedLanguagesBuilder_ == null) {
             if (!other.detectedLanguages_.isEmpty()) {
               if (detectedLanguages_.isEmpty()) {
                 detectedLanguages_ = other.detectedLanguages_;
-                bitField0_ = (bitField0_ & ~0x00000004);
+                bitField0_ = (bitField0_ & ~0x00000002);
               } else {
                 ensureDetectedLanguagesIsMutable();
                 detectedLanguages_.addAll(other.detectedLanguages_);
@@ -14105,7 +14930,7 @@ public Builder mergeFrom(com.google.cloud.documentai.v1beta2.Document.Page.Token
                 detectedLanguagesBuilder_.dispose();
                 detectedLanguagesBuilder_ = null;
                 detectedLanguages_ = other.detectedLanguages_;
-                bitField0_ = (bitField0_ & ~0x00000004);
+                bitField0_ = (bitField0_ & ~0x00000002);
                 detectedLanguagesBuilder_ =
                     com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders
                         ? getDetectedLanguagesFieldBuilder()
@@ -14115,6 +14940,9 @@ public Builder mergeFrom(com.google.cloud.documentai.v1beta2.Document.Page.Token
               }
             }
           }
+          if (other.hasProvenance()) {
+            mergeProvenance(other.getProvenance());
+          }
           this.mergeUnknownFields(other.getUnknownFields());
           onChanged();
           return this;
@@ -14148,13 +14976,6 @@ public Builder mergeFrom(
                     break;
                   } // case 10
                 case 18:
-                  {
-                    input.readMessage(
-                        getDetectedBreakFieldBuilder().getBuilder(), extensionRegistry);
-                    bitField0_ |= 0x00000002;
-                    break;
-                  } // case 18
-                case 26:
                   {
                     com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage m =
                         input.readMessage(
@@ -14168,6 +14989,12 @@ public Builder mergeFrom(
                       detectedLanguagesBuilder_.addMessage(m);
                     }
                     break;
+                  } // case 18
+                case 26:
+                  {
+                    input.readMessage(getProvenanceFieldBuilder().getBuilder(), extensionRegistry);
+                    bitField0_ |= 0x00000004;
+                    break;
                   } // case 26
                 default:
                   {
@@ -14198,7 +15025,8 @@ public Builder mergeFrom(
          *
          *
          * 
-         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [Token][google.cloud.documentai.v1beta2.Document.Page.Token].
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+         * [Line][google.cloud.documentai.v1beta2.Document.Page.Line].
          * 

          *
          * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
@@ -14212,7 +15040,8 @@ public boolean hasLayout() {
          *
          *
          * 
-         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [Token][google.cloud.documentai.v1beta2.Document.Page.Token].
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+         * [Line][google.cloud.documentai.v1beta2.Document.Page.Line].
          * 

          *
          * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
@@ -14232,7 +15061,8 @@ public com.google.cloud.documentai.v1beta2.Document.Page.Layout getLayout() {
          *
          *
          * 
-         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [Token][google.cloud.documentai.v1beta2.Document.Page.Token].
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+         * [Line][google.cloud.documentai.v1beta2.Document.Page.Line].
          * 

          *
          * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
@@ -14254,7 +15084,8 @@ public Builder setLayout(com.google.cloud.documentai.v1beta2.Document.Page.Layou
          *
          *
          * 
-         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [Token][google.cloud.documentai.v1beta2.Document.Page.Token].
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+         * [Line][google.cloud.documentai.v1beta2.Document.Page.Line].
          * 

          *
          * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
@@ -14274,7 +15105,8 @@ public Builder setLayout(
          *
          *
          * 
-         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [Token][google.cloud.documentai.v1beta2.Document.Page.Token].
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+         * [Line][google.cloud.documentai.v1beta2.Document.Page.Line].
          * 

          *
          * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
@@ -14301,7 +15133,8 @@ public Builder mergeLayout(com.google.cloud.documentai.v1beta2.Document.Page.Lay
          *
          *
          * 
-         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [Token][google.cloud.documentai.v1beta2.Document.Page.Token].
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+         * [Line][google.cloud.documentai.v1beta2.Document.Page.Line].
          * 

          *
          * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
@@ -14320,7 +15153,8 @@ public Builder clearLayout() {
          *
          *
          * 
-         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [Token][google.cloud.documentai.v1beta2.Document.Page.Token].
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+         * [Line][google.cloud.documentai.v1beta2.Document.Page.Line].
          * 

          *
          * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
@@ -14334,7 +15168,8 @@ public com.google.cloud.documentai.v1beta2.Document.Page.Layout.Builder getLayou
          *
          *
          * 
-         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [Token][google.cloud.documentai.v1beta2.Document.Page.Token].
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+         * [Line][google.cloud.documentai.v1beta2.Document.Page.Line].
          * 

          *
          * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
@@ -14353,7 +15188,8 @@ public com.google.cloud.documentai.v1beta2.Document.Page.Layout.Builder getLayou
          *
          *
          * 
-         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [Token][google.cloud.documentai.v1beta2.Document.Page.Token].
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+         * [Line][google.cloud.documentai.v1beta2.Document.Page.Line].
          * 

          *
          * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
@@ -14375,229 +15211,16 @@ public com.google.cloud.documentai.v1beta2.Document.Page.Layout.Builder getLayou
           return layoutBuilder_;
         }
 
-        private com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak
-            detectedBreak_;
-        private com.google.protobuf.SingleFieldBuilderV3<
-                com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak,
-                com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak.Builder,
-                com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreakOrBuilder>
-            detectedBreakBuilder_;
-        /**
-         *
-         *
-         * 
-         * Detected break at the end of a [Token][google.cloud.documentai.v1beta2.Document.Page.Token].
-         * 

-         *
-         * 
-         * .google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak detected_break = 2;
-         * 
-         *
-         * @return Whether the detectedBreak field is set.
-         */
-        public boolean hasDetectedBreak() {
-          return ((bitField0_ & 0x00000002) != 0);
-        }
-        /**
-         *
-         *
-         * 
-         * Detected break at the end of a [Token][google.cloud.documentai.v1beta2.Document.Page.Token].
-         * 

-         *
-         * 
-         * .google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak detected_break = 2;
-         * 
-         *
-         * @return The detectedBreak.
-         */
-        public com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak
-            getDetectedBreak() {
-          if (detectedBreakBuilder_ == null) {
-            return detectedBreak_ == null
-                ? com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak
-                    .getDefaultInstance()
-                : detectedBreak_;
-          } else {
-            return detectedBreakBuilder_.getMessage();
-          }
-        }
-        /**
-         *
-         *
-         * 
-         * Detected break at the end of a [Token][google.cloud.documentai.v1beta2.Document.Page.Token].
-         * 

-         *
-         * 
-         * .google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak detected_break = 2;
-         * 
-         */
-        public Builder setDetectedBreak(
-            com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak value) {
-          if (detectedBreakBuilder_ == null) {
-            if (value == null) {
-              throw new NullPointerException();
-            }
-            detectedBreak_ = value;
-          } else {
-            detectedBreakBuilder_.setMessage(value);
-          }
-          bitField0_ |= 0x00000002;
-          onChanged();
-          return this;
-        }
-        /**
-         *
-         *
-         * 
-         * Detected break at the end of a [Token][google.cloud.documentai.v1beta2.Document.Page.Token].
-         * 

-         *
-         * 
-         * .google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak detected_break = 2;
-         * 
-         */
-        public Builder setDetectedBreak(
-            com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak.Builder
-                builderForValue) {
-          if (detectedBreakBuilder_ == null) {
-            detectedBreak_ = builderForValue.build();
-          } else {
-            detectedBreakBuilder_.setMessage(builderForValue.build());
-          }
-          bitField0_ |= 0x00000002;
-          onChanged();
-          return this;
-        }
-        /**
-         *
-         *
-         * 
-         * Detected break at the end of a [Token][google.cloud.documentai.v1beta2.Document.Page.Token].
-         * 

-         *
-         * 
-         * .google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak detected_break = 2;
-         * 
-         */
-        public Builder mergeDetectedBreak(
-            com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak value) {
-          if (detectedBreakBuilder_ == null) {
-            if (((bitField0_ & 0x00000002) != 0)
-                && detectedBreak_ != null
-                && detectedBreak_
-                    != com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak
-                        .getDefaultInstance()) {
-              getDetectedBreakBuilder().mergeFrom(value);
-            } else {
-              detectedBreak_ = value;
-            }
-          } else {
-            detectedBreakBuilder_.mergeFrom(value);
-          }
-          bitField0_ |= 0x00000002;
-          onChanged();
-          return this;
-        }
-        /**
-         *
-         *
-         * 
-         * Detected break at the end of a [Token][google.cloud.documentai.v1beta2.Document.Page.Token].
-         * 

-         *
-         * 
-         * .google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak detected_break = 2;
-         * 
-         */
-        public Builder clearDetectedBreak() {
-          bitField0_ = (bitField0_ & ~0x00000002);
-          detectedBreak_ = null;
-          if (detectedBreakBuilder_ != null) {
-            detectedBreakBuilder_.dispose();
-            detectedBreakBuilder_ = null;
-          }
-          onChanged();
-          return this;
-        }
-        /**
-         *
-         *
-         * 
-         * Detected break at the end of a [Token][google.cloud.documentai.v1beta2.Document.Page.Token].
-         * 

-         *
-         * 
-         * .google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak detected_break = 2;
-         * 
-         */
-        public com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak.Builder
-            getDetectedBreakBuilder() {
-          bitField0_ |= 0x00000002;
-          onChanged();
-          return getDetectedBreakFieldBuilder().getBuilder();
-        }
-        /**
-         *
-         *
-         * 
-         * Detected break at the end of a [Token][google.cloud.documentai.v1beta2.Document.Page.Token].
-         * 

-         *
-         * 
-         * .google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak detected_break = 2;
-         * 
-         */
-        public com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreakOrBuilder
-            getDetectedBreakOrBuilder() {
-          if (detectedBreakBuilder_ != null) {
-            return detectedBreakBuilder_.getMessageOrBuilder();
-          } else {
-            return detectedBreak_ == null
-                ? com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak
-                    .getDefaultInstance()
-                : detectedBreak_;
-          }
-        }
-        /**
-         *
-         *
-         * 
-         * Detected break at the end of a [Token][google.cloud.documentai.v1beta2.Document.Page.Token].
-         * 

-         *
-         * 
-         * .google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak detected_break = 2;
-         * 
-         */
-        private com.google.protobuf.SingleFieldBuilderV3<
-                com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak,
-                com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak.Builder,
-                com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreakOrBuilder>
-            getDetectedBreakFieldBuilder() {
-          if (detectedBreakBuilder_ == null) {
-            detectedBreakBuilder_ =
-                new com.google.protobuf.SingleFieldBuilderV3<
-                    com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak,
-                    com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak.Builder,
-                    com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreakOrBuilder>(
-                    getDetectedBreak(), getParentForChildren(), isClean());
-            detectedBreak_ = null;
-          }
-          return detectedBreakBuilder_;
-        }
-
         private java.util.List
             detectedLanguages_ = java.util.Collections.emptyList();
 
         private void ensureDetectedLanguagesIsMutable() {
-          if (!((bitField0_ & 0x00000004) != 0)) {
+          if (!((bitField0_ & 0x00000002) != 0)) {
             detectedLanguages_ =
                 new java.util.ArrayList<
                     com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage>(
                     detectedLanguages_);
-            bitField0_ |= 0x00000004;
+            bitField0_ |= 0x00000002;
           }
         }
 
@@ -14615,7 +15238,7 @@ private void ensureDetectedLanguagesIsMutable() {
          * 
          *
          * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
          * 
          */
         public java.util.List
@@ -14634,7 +15257,7 @@ private void ensureDetectedLanguagesIsMutable() {
          * 
          *
          * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
          * 
          */
         public int getDetectedLanguagesCount() {
@@ -14652,7 +15275,7 @@ public int getDetectedLanguagesCount() {
          * 
          *
          * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
          * 
          */
         public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage
@@ -14671,7 +15294,7 @@ public int getDetectedLanguagesCount() {
          * 
          *
          * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
          * 
          */
         public Builder setDetectedLanguages(
@@ -14696,7 +15319,7 @@ public Builder setDetectedLanguages(
          * 
          *
          * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
          * 
          */
         public Builder setDetectedLanguages(
@@ -14720,7 +15343,7 @@ public Builder setDetectedLanguages(
          * 
          *
          * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
          * 
          */
         public Builder addDetectedLanguages(
@@ -14745,7 +15368,7 @@ public Builder addDetectedLanguages(
          * 
          *
          * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
          * 
          */
         public Builder addDetectedLanguages(
@@ -14770,7 +15393,7 @@ public Builder addDetectedLanguages(
          * 
          *
          * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
          * 
          */
         public Builder addDetectedLanguages(
@@ -14793,7 +15416,7 @@ public Builder addDetectedLanguages(
          * 
          *
          * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
          * 
          */
         public Builder addDetectedLanguages(
@@ -14817,7 +15440,7 @@ public Builder addDetectedLanguages(
          * 
          *
          * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
          * 
          */
         public Builder addAllDetectedLanguages(
@@ -14841,13 +15464,13 @@ public Builder addAllDetectedLanguages(
          * 
          *
          * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
          * 
          */
         public Builder clearDetectedLanguages() {
           if (detectedLanguagesBuilder_ == null) {
             detectedLanguages_ = java.util.Collections.emptyList();
-            bitField0_ = (bitField0_ & ~0x00000004);
+            bitField0_ = (bitField0_ & ~0x00000002);
             onChanged();
           } else {
             detectedLanguagesBuilder_.clear();
@@ -14862,7 +15485,7 @@ public Builder clearDetectedLanguages() {
          * 
          *
          * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
          * 
          */
         public Builder removeDetectedLanguages(int index) {
@@ -14883,7 +15506,7 @@ public Builder removeDetectedLanguages(int index) {
          * 
          *
          * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
          * 
          */
         public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
@@ -14898,7 +15521,7 @@ public Builder removeDetectedLanguages(int index) {
          * 
          *
          * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
          * 
          */
         public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder
@@ -14917,7 +15540,7 @@ public Builder removeDetectedLanguages(int index) {
          * 
          *
          * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
          * 
          */
         public java.util.List<
@@ -14938,7 +15561,7 @@ public Builder removeDetectedLanguages(int index) {
          * 
          *
          * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
          * 
          */
         public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
@@ -14956,7 +15579,7 @@ public Builder removeDetectedLanguages(int index) {
          * 
          *
          * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
          * 
          */
         public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
@@ -14975,7 +15598,7 @@ public Builder removeDetectedLanguages(int index) {
          * 
          *
          * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
          * 
          */
         public java.util.List<
@@ -14996,7 +15619,7 @@ public Builder removeDetectedLanguages(int index) {
                     com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder,
                     com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>(
                     detectedLanguages_,
-                    ((bitField0_ & 0x00000004) != 0),
+                    ((bitField0_ & 0x00000002) != 0),
                     getParentForChildren(),
                     isClean());
             detectedLanguages_ = null;
@@ -15004,6 +15627,226 @@ public Builder removeDetectedLanguages(int index) {
           return detectedLanguagesBuilder_;
         }
 
+        private com.google.cloud.documentai.v1beta2.Document.Provenance provenance_;
+        private com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.documentai.v1beta2.Document.Provenance,
+                com.google.cloud.documentai.v1beta2.Document.Provenance.Builder,
+                com.google.cloud.documentai.v1beta2.Document.ProvenanceOrBuilder>
+            provenanceBuilder_;
+        /**
+         *
+         *
+         * 
+         * The  history of this annotation.
+         * 

+         *
+         * 
+         * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 3 [deprecated = true];
+         * 
+         *
+         * @deprecated google.cloud.documentai.v1beta2.Document.Page.Line.provenance is deprecated.
+         *     See google/cloud/documentai/v1beta2/document.proto;l=260
+         * @return Whether the provenance field is set.
+         */
+        @java.lang.Deprecated
+        public boolean hasProvenance() {
+          return ((bitField0_ & 0x00000004) != 0);
+        }
+        /**
+         *
+         *
+         * 
+         * The  history of this annotation.
+         * 

+         *
+         * 
+         * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 3 [deprecated = true];
+         * 
+         *
+         * @deprecated google.cloud.documentai.v1beta2.Document.Page.Line.provenance is deprecated.
+         *     See google/cloud/documentai/v1beta2/document.proto;l=260
+         * @return The provenance.
+         */
+        @java.lang.Deprecated
+        public com.google.cloud.documentai.v1beta2.Document.Provenance getProvenance() {
+          if (provenanceBuilder_ == null) {
+            return provenance_ == null
+                ? com.google.cloud.documentai.v1beta2.Document.Provenance.getDefaultInstance()
+                : provenance_;
+          } else {
+            return provenanceBuilder_.getMessage();
+          }
+        }
+        /**
+         *
+         *
+         * 
+         * The  history of this annotation.
+         * 

+         *
+         * 
+         * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 3 [deprecated = true];
+         * 
+         */
+        @java.lang.Deprecated
+        public Builder setProvenance(
+            com.google.cloud.documentai.v1beta2.Document.Provenance value) {
+          if (provenanceBuilder_ == null) {
+            if (value == null) {
+              throw new NullPointerException();
+            }
+            provenance_ = value;
+          } else {
+            provenanceBuilder_.setMessage(value);
+          }
+          bitField0_ |= 0x00000004;
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * The  history of this annotation.
+         * 

+         *
+         * 
+         * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 3 [deprecated = true];
+         * 
+         */
+        @java.lang.Deprecated
+        public Builder setProvenance(
+            com.google.cloud.documentai.v1beta2.Document.Provenance.Builder builderForValue) {
+          if (provenanceBuilder_ == null) {
+            provenance_ = builderForValue.build();
+          } else {
+            provenanceBuilder_.setMessage(builderForValue.build());
+          }
+          bitField0_ |= 0x00000004;
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * The  history of this annotation.
+         * 

+         *
+         * 
+         * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 3 [deprecated = true];
+         * 
+         */
+        @java.lang.Deprecated
+        public Builder mergeProvenance(
+            com.google.cloud.documentai.v1beta2.Document.Provenance value) {
+          if (provenanceBuilder_ == null) {
+            if (((bitField0_ & 0x00000004) != 0)
+                && provenance_ != null
+                && provenance_
+                    != com.google.cloud.documentai.v1beta2.Document.Provenance
+                        .getDefaultInstance()) {
+              getProvenanceBuilder().mergeFrom(value);
+            } else {
+              provenance_ = value;
+            }
+          } else {
+            provenanceBuilder_.mergeFrom(value);
+          }
+          bitField0_ |= 0x00000004;
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * The  history of this annotation.
+         * 

+         *
+         * 
+         * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 3 [deprecated = true];
+         * 
+         */
+        @java.lang.Deprecated
+        public Builder clearProvenance() {
+          bitField0_ = (bitField0_ & ~0x00000004);
+          provenance_ = null;
+          if (provenanceBuilder_ != null) {
+            provenanceBuilder_.dispose();
+            provenanceBuilder_ = null;
+          }
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * The  history of this annotation.
+         * 

+         *
+         * 
+         * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 3 [deprecated = true];
+         * 
+         */
+        @java.lang.Deprecated
+        public com.google.cloud.documentai.v1beta2.Document.Provenance.Builder
+            getProvenanceBuilder() {
+          bitField0_ |= 0x00000004;
+          onChanged();
+          return getProvenanceFieldBuilder().getBuilder();
+        }
+        /**
+         *
+         *
+         * 
+         * The  history of this annotation.
+         * 

+         *
+         * 
+         * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 3 [deprecated = true];
+         * 
+         */
+        @java.lang.Deprecated
+        public com.google.cloud.documentai.v1beta2.Document.ProvenanceOrBuilder
+            getProvenanceOrBuilder() {
+          if (provenanceBuilder_ != null) {
+            return provenanceBuilder_.getMessageOrBuilder();
+          } else {
+            return provenance_ == null
+                ? com.google.cloud.documentai.v1beta2.Document.Provenance.getDefaultInstance()
+                : provenance_;
+          }
+        }
+        /**
+         *
+         *
+         * 
+         * The  history of this annotation.
+         * 

+         *
+         * 
+         * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 3 [deprecated = true];
+         * 
+         */
+        private com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.documentai.v1beta2.Document.Provenance,
+                com.google.cloud.documentai.v1beta2.Document.Provenance.Builder,
+                com.google.cloud.documentai.v1beta2.Document.ProvenanceOrBuilder>
+            getProvenanceFieldBuilder() {
+          if (provenanceBuilder_ == null) {
+            provenanceBuilder_ =
+                new com.google.protobuf.SingleFieldBuilderV3<
+                    com.google.cloud.documentai.v1beta2.Document.Provenance,
+                    com.google.cloud.documentai.v1beta2.Document.Provenance.Builder,
+                    com.google.cloud.documentai.v1beta2.Document.ProvenanceOrBuilder>(
+                    getProvenance(), getParentForChildren(), isClean());
+            provenance_ = null;
+          }
+          return provenanceBuilder_;
+        }
+
         @java.lang.Override
         public final Builder setUnknownFields(
             final com.google.protobuf.UnknownFieldSet unknownFields) {
@@ -15016,24 +15859,24 @@ public final Builder mergeUnknownFields(
           return super.mergeUnknownFields(unknownFields);
         }
 
-        // @@protoc_insertion_point(builder_scope:google.cloud.documentai.v1beta2.Document.Page.Token)
+        // @@protoc_insertion_point(builder_scope:google.cloud.documentai.v1beta2.Document.Page.Line)
       }
 
-      // @@protoc_insertion_point(class_scope:google.cloud.documentai.v1beta2.Document.Page.Token)
-      private static final com.google.cloud.documentai.v1beta2.Document.Page.Token DEFAULT_INSTANCE;
+      // @@protoc_insertion_point(class_scope:google.cloud.documentai.v1beta2.Document.Page.Line)
+      private static final com.google.cloud.documentai.v1beta2.Document.Page.Line DEFAULT_INSTANCE;
 
       static {
-        DEFAULT_INSTANCE = new com.google.cloud.documentai.v1beta2.Document.Page.Token();
+        DEFAULT_INSTANCE = new com.google.cloud.documentai.v1beta2.Document.Page.Line();
       }
 
-      public static com.google.cloud.documentai.v1beta2.Document.Page.Token getDefaultInstance() {
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Line getDefaultInstance() {
         return DEFAULT_INSTANCE;
       }
 
-      private static final com.google.protobuf.Parser PARSER =
-          new com.google.protobuf.AbstractParser() {
+      private static final com.google.protobuf.Parser PARSER =
+          new com.google.protobuf.AbstractParser() {
             @java.lang.Override
-            public Token parsePartialFrom(
+            public Line parsePartialFrom(
                 com.google.protobuf.CodedInputStream input,
                 com.google.protobuf.ExtensionRegistryLite extensionRegistry)
                 throws com.google.protobuf.InvalidProtocolBufferException {
@@ -15053,31 +15896,32 @@ public Token parsePartialFrom(
             }
           };
 
-      public static com.google.protobuf.Parser parser() {
+      public static com.google.protobuf.Parser parser() {
         return PARSER;
       }
 
       @java.lang.Override
-      public com.google.protobuf.Parser getParserForType() {
+      public com.google.protobuf.Parser getParserForType() {
         return PARSER;
       }
 
       @java.lang.Override
-      public com.google.cloud.documentai.v1beta2.Document.Page.Token getDefaultInstanceForType() {
+      public com.google.cloud.documentai.v1beta2.Document.Page.Line getDefaultInstanceForType() {
         return DEFAULT_INSTANCE;
       }
     }
 
-    public interface VisualElementOrBuilder
+    public interface TokenOrBuilder
         extends
-        // @@protoc_insertion_point(interface_extends:google.cloud.documentai.v1beta2.Document.Page.VisualElement)
+        // @@protoc_insertion_point(interface_extends:google.cloud.documentai.v1beta2.Document.Page.Token)
         com.google.protobuf.MessageOrBuilder {
 
       /**
        *
        *
        * 
-       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [VisualElement][google.cloud.documentai.v1beta2.Document.Page.VisualElement].
+       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+       * [Token][google.cloud.documentai.v1beta2.Document.Page.Token].
        * 

        *
        * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
@@ -15089,7 +15933,8 @@ public interface VisualElementOrBuilder
        *
        *
        * 
-       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [VisualElement][google.cloud.documentai.v1beta2.Document.Page.VisualElement].
+       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+       * [Token][google.cloud.documentai.v1beta2.Document.Page.Token].
        * 

        *
        * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
@@ -15101,7 +15946,8 @@ public interface VisualElementOrBuilder
        *
        *
        * 
-       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [VisualElement][google.cloud.documentai.v1beta2.Document.Page.VisualElement].
+       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+       * [Token][google.cloud.documentai.v1beta2.Document.Page.Token].
        * 

        *
        * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
@@ -15112,26 +15958,46 @@ public interface VisualElementOrBuilder
        *
        *
        * 
-       * Type of the [VisualElement][google.cloud.documentai.v1beta2.Document.Page.VisualElement].
+       * Detected break at the end of a
+       * [Token][google.cloud.documentai.v1beta2.Document.Page.Token].
        * 

        *
-       * string type = 2;
+       * 
+       * .google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak detected_break = 2;
+       * 
        *
-       * @return The type.
+       * @return Whether the detectedBreak field is set.
        */
-      java.lang.String getType();
+      boolean hasDetectedBreak();
       /**
        *
        *
        * 
-       * Type of the [VisualElement][google.cloud.documentai.v1beta2.Document.Page.VisualElement].
+       * Detected break at the end of a
+       * [Token][google.cloud.documentai.v1beta2.Document.Page.Token].
        * 

        *
-       * string type = 2;
+       * 
+       * .google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak detected_break = 2;
+       * 
        *
-       * @return The bytes for type.
+       * @return The detectedBreak.
        */
-      com.google.protobuf.ByteString getTypeBytes();
+      com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak getDetectedBreak();
+      /**
+       *
+       *
+       * 
+       * Detected break at the end of a
+       * [Token][google.cloud.documentai.v1beta2.Document.Page.Token].
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak detected_break = 2;
+       * 
+       */
+      com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreakOrBuilder
+          getDetectedBreakOrBuilder();
 
       /**
        *
@@ -15198,1948 +16064,1654 @@ com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage getDetectedLa
        */
       com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder
           getDetectedLanguagesOrBuilder(int index);
-    }
-    /**
-     *
-     *
-     * 
-     * Detected non-text visual elements e.g. checkbox, signature etc. on the
-     * page.
-     * 

-     *
-     * Protobuf type {@code google.cloud.documentai.v1beta2.Document.Page.VisualElement}
-     */
-    public static final class VisualElement extends com.google.protobuf.GeneratedMessageV3
-        implements
-        // @@protoc_insertion_point(message_implements:google.cloud.documentai.v1beta2.Document.Page.VisualElement)
-        VisualElementOrBuilder {
-      private static final long serialVersionUID = 0L;
-      // Use VisualElement.newBuilder() to construct.
-      private VisualElement(com.google.protobuf.GeneratedMessageV3.Builder builder) {
-        super(builder);
-      }
-
-      private VisualElement() {
-        type_ = "";
-        detectedLanguages_ = java.util.Collections.emptyList();
-      }
-
-      @java.lang.Override
-      @SuppressWarnings({"unused"})
-      protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
-        return new VisualElement();
-      }
-
-      public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
-        return com.google.cloud.documentai.v1beta2.DocumentProto
-            .internal_static_google_cloud_documentai_v1beta2_Document_Page_VisualElement_descriptor;
-      }
-
-      @java.lang.Override
-      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
-          internalGetFieldAccessorTable() {
-        return com.google.cloud.documentai.v1beta2.DocumentProto
-            .internal_static_google_cloud_documentai_v1beta2_Document_Page_VisualElement_fieldAccessorTable
-            .ensureFieldAccessorsInitialized(
-                com.google.cloud.documentai.v1beta2.Document.Page.VisualElement.class,
-                com.google.cloud.documentai.v1beta2.Document.Page.VisualElement.Builder.class);
-      }
 
-      public static final int LAYOUT_FIELD_NUMBER = 1;
-      private com.google.cloud.documentai.v1beta2.Document.Page.Layout layout_;
       /**
        *
        *
        * 
-       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [VisualElement][google.cloud.documentai.v1beta2.Document.Page.VisualElement].
+       * The history of this annotation.
        * 

        *
-       * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+       * 
+       * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 4 [deprecated = true];
+       * 
        *
-       * @return Whether the layout field is set.
+       * @deprecated google.cloud.documentai.v1beta2.Document.Page.Token.provenance is deprecated.
+       *     See google/cloud/documentai/v1beta2/document.proto;l=352
+       * @return Whether the provenance field is set.
        */
-      @java.lang.Override
-      public boolean hasLayout() {
-        return layout_ != null;
-      }
+      @java.lang.Deprecated
+      boolean hasProvenance();
       /**
        *
        *
        * 
-       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [VisualElement][google.cloud.documentai.v1beta2.Document.Page.VisualElement].
+       * The history of this annotation.
        * 

        *
-       * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+       * 
+       * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 4 [deprecated = true];
+       * 
        *
-       * @return The layout.
+       * @deprecated google.cloud.documentai.v1beta2.Document.Page.Token.provenance is deprecated.
+       *     See google/cloud/documentai/v1beta2/document.proto;l=352
+       * @return The provenance.
        */
-      @java.lang.Override
-      public com.google.cloud.documentai.v1beta2.Document.Page.Layout getLayout() {
-        return layout_ == null
-            ? com.google.cloud.documentai.v1beta2.Document.Page.Layout.getDefaultInstance()
-            : layout_;
-      }
+      @java.lang.Deprecated
+      com.google.cloud.documentai.v1beta2.Document.Provenance getProvenance();
       /**
        *
        *
        * 
-       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [VisualElement][google.cloud.documentai.v1beta2.Document.Page.VisualElement].
+       * The history of this annotation.
        * 

        *
-       * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+       * 
+       * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 4 [deprecated = true];
+       * 
        */
-      @java.lang.Override
-      public com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder
-          getLayoutOrBuilder() {
-        return layout_ == null
-            ? com.google.cloud.documentai.v1beta2.Document.Page.Layout.getDefaultInstance()
-            : layout_;
-      }
-
-      public static final int TYPE_FIELD_NUMBER = 2;
+      @java.lang.Deprecated
+      com.google.cloud.documentai.v1beta2.Document.ProvenanceOrBuilder getProvenanceOrBuilder();
 
-      @SuppressWarnings("serial")
-      private volatile java.lang.Object type_ = "";
       /**
        *
        *
        * 
-       * Type of the [VisualElement][google.cloud.documentai.v1beta2.Document.Page.VisualElement].
+       * Text style attributes.
        * 

        *
-       * string type = 2;
+       * .google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo style_info = 5;
        *
-       * @return The type.
+       * @return Whether the styleInfo field is set.
        */
-      @java.lang.Override
-      public java.lang.String getType() {
-        java.lang.Object ref = type_;
-        if (ref instanceof java.lang.String) {
-          return (java.lang.String) ref;
-        } else {
-          com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
-          java.lang.String s = bs.toStringUtf8();
-          type_ = s;
-          return s;
-        }
-      }
+      boolean hasStyleInfo();
       /**
        *
        *
        * 
-       * Type of the [VisualElement][google.cloud.documentai.v1beta2.Document.Page.VisualElement].
+       * Text style attributes.
        * 

        *
-       * string type = 2;
+       * .google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo style_info = 5;
        *
-       * @return The bytes for type.
+       * @return The styleInfo.
        */
-      @java.lang.Override
-      public com.google.protobuf.ByteString getTypeBytes() {
-        java.lang.Object ref = type_;
-        if (ref instanceof java.lang.String) {
-          com.google.protobuf.ByteString b =
-              com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
-          type_ = b;
-          return b;
-        } else {
-          return (com.google.protobuf.ByteString) ref;
-        }
-      }
-
-      public static final int DETECTED_LANGUAGES_FIELD_NUMBER = 3;
-
-      @SuppressWarnings("serial")
-      private java.util.List
-          detectedLanguages_;
+      com.google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo getStyleInfo();
       /**
        *
        *
        * 
-       * A list of detected languages together with confidence.
+       * Text style attributes.
        * 

        *
-       * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
-       * 
+       * .google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo style_info = 5;
        */
-      @java.lang.Override
-      public java.util.List
-          getDetectedLanguagesList() {
-        return detectedLanguages_;
+      com.google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfoOrBuilder
+          getStyleInfoOrBuilder();
+    }
+    /**
+     *
+     *
+     * 
+     * A detected token.
+     * 

+     *
+     * Protobuf type {@code google.cloud.documentai.v1beta2.Document.Page.Token}
+     */
+    public static final class Token extends com.google.protobuf.GeneratedMessageV3
+        implements
+        // @@protoc_insertion_point(message_implements:google.cloud.documentai.v1beta2.Document.Page.Token)
+        TokenOrBuilder {
+      private static final long serialVersionUID = 0L;
+      // Use Token.newBuilder() to construct.
+      private Token(com.google.protobuf.GeneratedMessageV3.Builder builder) {
+        super(builder);
       }
-      /**
-       *
-       *
-       * 
-       * A list of detected languages together with confidence.
-       * 

-       *
-       * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
-       * 
-       */
-      @java.lang.Override
-      public java.util.List<
-              ? extends com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>
-          getDetectedLanguagesOrBuilderList() {
-        return detectedLanguages_;
+
+      private Token() {
+        detectedLanguages_ = java.util.Collections.emptyList();
       }
-      /**
-       *
-       *
-       * 
-       * A list of detected languages together with confidence.
-       * 

-       *
-       * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
-       * 
-       */
+
       @java.lang.Override
-      public int getDetectedLanguagesCount() {
-        return detectedLanguages_.size();
+      @SuppressWarnings({"unused"})
+      protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+        return new Token();
       }
-      /**
-       *
-       *
-       * 
-       * A list of detected languages together with confidence.
-       * 

-       *
-       * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
-       * 
-       */
+
+      public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+        return com.google.cloud.documentai.v1beta2.DocumentProto
+            .internal_static_google_cloud_documentai_v1beta2_Document_Page_Token_descriptor;
+      }
+
       @java.lang.Override
-      public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage
-          getDetectedLanguages(int index) {
-        return detectedLanguages_.get(index);
+      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+          internalGetFieldAccessorTable() {
+        return com.google.cloud.documentai.v1beta2.DocumentProto
+            .internal_static_google_cloud_documentai_v1beta2_Document_Page_Token_fieldAccessorTable
+            .ensureFieldAccessorsInitialized(
+                com.google.cloud.documentai.v1beta2.Document.Page.Token.class,
+                com.google.cloud.documentai.v1beta2.Document.Page.Token.Builder.class);
+      }
+
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+                } // switch (tag)
+              } // while (!done)
+            } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+              throw e.unwrapIOException();
+            } finally {
+              onChanged();
+            } // finally
+            return this;
+          }
+
+          private int bitField0_;
+
+          private int type_ = 0;
+          /**
+           *
+           *
+           * 
+           * Detected break type.
+           * 

+           *
+           * .google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak.Type type = 1;
+           * 
+           *
+           * @return The enum numeric value on the wire for type.
+           */
+          @java.lang.Override
+          public int getTypeValue() {
+            return type_;
+          }
+          /**
+           *
+           *
+           * 
+           * Detected break type.
+           * 

+           *
+           * .google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak.Type type = 1;
+           * 
+           *
+           * @param value The enum numeric value on the wire for type to set.
+           * @return This builder for chaining.
+           */
+          public Builder setTypeValue(int value) {
+            type_ = value;
+            bitField0_ |= 0x00000001;
+            onChanged();
+            return this;
+          }
+          /**
+           *
+           *
+           * 
+           * Detected break type.
+           * 

+           *
+           * .google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak.Type type = 1;
+           * 
+           *
+           * @return The type.
+           */
+          @java.lang.Override
+          public com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak.Type
+              getType() {
+            com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak.Type result =
+                com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak.Type
+                    .forNumber(type_);
+            return result == null
+                ? com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak.Type
+                    .UNRECOGNIZED
+                : result;
+          }
+          /**
+           *
+           *
+           * 
+           * Detected break type.
+           * 

+           *
+           * .google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak.Type type = 1;
+           * 
+           *
+           * @param value The type to set.
+           * @return This builder for chaining.
+           */
+          public Builder setType(
+              com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak.Type value) {
+            if (value == null) {
+              throw new NullPointerException();
+            }
+            bitField0_ |= 0x00000001;
+            type_ = value.getNumber();
+            onChanged();
+            return this;
+          }
+          /**
+           *
+           *
+           * 
+           * Detected break type.
+           * 

+           *
+           * .google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak.Type type = 1;
+           * 
+           *
+           * @return This builder for chaining.
+           */
+          public Builder clearType() {
+            bitField0_ = (bitField0_ & ~0x00000001);
+            type_ = 0;
+            onChanged();
+            return this;
+          }
+
+          @java.lang.Override
+          public final Builder setUnknownFields(
+              final com.google.protobuf.UnknownFieldSet unknownFields) {
+            return super.setUnknownFields(unknownFields);
+          }
+
+          @java.lang.Override
+          public final Builder mergeUnknownFields(
+              final com.google.protobuf.UnknownFieldSet unknownFields) {
+            return super.mergeUnknownFields(unknownFields);
+          }
+
+          // @@protoc_insertion_point(builder_scope:google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak)
+        }
+
+        // @@protoc_insertion_point(class_scope:google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak)
+        private static final com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak
+            DEFAULT_INSTANCE;
+
+        static {
+          DEFAULT_INSTANCE =
+              new com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak();
+        }
+
+        public static com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak
+            getDefaultInstance() {
+          return DEFAULT_INSTANCE;
+        }
+
+        private static final com.google.protobuf.Parser PARSER =
+            new com.google.protobuf.AbstractParser() {
+              @java.lang.Override
+              public DetectedBreak parsePartialFrom(
+                  com.google.protobuf.CodedInputStream input,
+                  com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+                  throws com.google.protobuf.InvalidProtocolBufferException {
+                Builder builder = newBuilder();
+                try {
+                  builder.mergeFrom(input, extensionRegistry);
+                } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+                  throw e.setUnfinishedMessage(builder.buildPartial());
+                } catch (com.google.protobuf.UninitializedMessageException e) {
+                  throw e.asInvalidProtocolBufferException()
+                      .setUnfinishedMessage(builder.buildPartial());
+                } catch (java.io.IOException e) {
+                  throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                      .setUnfinishedMessage(builder.buildPartial());
+                }
+                return builder.buildPartial();
+              }
+            };
+
+        public static com.google.protobuf.Parser parser() {
+          return PARSER;
+        }
+
+        @java.lang.Override
+        public com.google.protobuf.Parser getParserForType() {
+          return PARSER;
+        }
+
+        @java.lang.Override
+        public com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak
+            getDefaultInstanceForType() {
+          return DEFAULT_INSTANCE;
+        }
+      }
+
+      public interface StyleInfoOrBuilder
+          extends
+          // @@protoc_insertion_point(interface_extends:google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo)
+          com.google.protobuf.MessageOrBuilder {
+
+        /**
+         *
          *
          * 
-         * A list of detected languages together with confidence.
+         * Font size in points (`1` point is `¹⁄₇₂` inches).
          * 

          *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
-         * 
+         * int32 font_size = 1;
+         *
+         * @return The fontSize.
          */
-        public java.util.List
-            getDetectedLanguagesList() {
-          if (detectedLanguagesBuilder_ == null) {
-            return java.util.Collections.unmodifiableList(detectedLanguages_);
-          } else {
-            return detectedLanguagesBuilder_.getMessageList();
-          }
-        }
+        int getFontSize();
+
         /**
          *
          *
          * 
-         * A list of detected languages together with confidence.
+         * Font size in pixels, equal to _unrounded
+         * [font_size][google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo.font_size]_
+         * * _resolution_ ÷ `72.0`.
          * 

          *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
-         * 
+         * double pixel_font_size = 2;
+         *
+         * @return The pixelFontSize.
          */
-        public int getDetectedLanguagesCount() {
-          if (detectedLanguagesBuilder_ == null) {
-            return detectedLanguages_.size();
-          } else {
-            return detectedLanguagesBuilder_.getCount();
-          }
-        }
+        double getPixelFontSize();
+
         /**
          *
          *
          * 
-         * A list of detected languages together with confidence.
+         * Letter spacing in points.
          * 

          *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
-         * 
+         * double letter_spacing = 3;
+         *
+         * @return The letterSpacing.
          */
-        public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage
-            getDetectedLanguages(int index) {
-          if (detectedLanguagesBuilder_ == null) {
-            return detectedLanguages_.get(index);
-          } else {
-            return detectedLanguagesBuilder_.getMessage(index);
-          }
-        }
+        double getLetterSpacing();
+
         /**
          *
          *
          * 
-         * A list of detected languages together with confidence.
+         * Name or style of the font.
          * 

          *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
-         * 
+         * string font_type = 4;
+         *
+         * @return The fontType.
          */
-        public Builder setDetectedLanguages(
-            int index, com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value) {
-          if (detectedLanguagesBuilder_ == null) {
-            if (value == null) {
-              throw new NullPointerException();
-            }
-            ensureDetectedLanguagesIsMutable();
-            detectedLanguages_.set(index, value);
-            onChanged();
-          } else {
-            detectedLanguagesBuilder_.setMessage(index, value);
-          }
-          return this;
-        }
+        java.lang.String getFontType();
         /**
          *
          *
          * 
-         * A list of detected languages together with confidence.
+         * Name or style of the font.
          * 

          *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
-         * 
+         * string font_type = 4;
+         *
+         * @return The bytes for fontType.
          */
-        public Builder setDetectedLanguages(
-            int index,
-            com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
-                builderForValue) {
-          if (detectedLanguagesBuilder_ == null) {
-            ensureDetectedLanguagesIsMutable();
-            detectedLanguages_.set(index, builderForValue.build());
-            onChanged();
-          } else {
-            detectedLanguagesBuilder_.setMessage(index, builderForValue.build());
-          }
-          return this;
-        }
+        com.google.protobuf.ByteString getFontTypeBytes();
+
         /**
          *
          *
          * 
-         * A list of detected languages together with confidence.
+         * Whether the text is bold (equivalent to
+         * [font_weight][google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo.font_weight]
+         * is at least `700`).
          * 

          *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
-         * 
+         * bool bold = 5;
+         *
+         * @return The bold.
          */
-        public Builder addDetectedLanguages(
-            com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value) {
-          if (detectedLanguagesBuilder_ == null) {
-            if (value == null) {
-              throw new NullPointerException();
-            }
-            ensureDetectedLanguagesIsMutable();
-            detectedLanguages_.add(value);
-            onChanged();
-          } else {
-            detectedLanguagesBuilder_.addMessage(value);
-          }
-          return this;
-        }
+        boolean getBold();
+
         /**
          *
          *
          * 
-         * A list of detected languages together with confidence.
+         * Whether the text is italic.
          * 

          *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
-         * 
+         * bool italic = 6;
+         *
+         * @return The italic.
          */
-        public Builder addDetectedLanguages(
-            int index, com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value) {
-          if (detectedLanguagesBuilder_ == null) {
-            if (value == null) {
-              throw new NullPointerException();
-            }
-            ensureDetectedLanguagesIsMutable();
-            detectedLanguages_.add(index, value);
-            onChanged();
-          } else {
-            detectedLanguagesBuilder_.addMessage(index, value);
-          }
-          return this;
-        }
+        boolean getItalic();
+
         /**
          *
          *
          * 
-         * A list of detected languages together with confidence.
+         * Whether the text is underlined.
          * 

          *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
-         * 
+         * bool underlined = 7;
+         *
+         * @return The underlined.
          */
-        public Builder addDetectedLanguages(
-            com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
-                builderForValue) {
-          if (detectedLanguagesBuilder_ == null) {
-            ensureDetectedLanguagesIsMutable();
-            detectedLanguages_.add(builderForValue.build());
-            onChanged();
-          } else {
-            detectedLanguagesBuilder_.addMessage(builderForValue.build());
-          }
-          return this;
-        }
+        boolean getUnderlined();
+
         /**
          *
          *
          * 
-         * A list of detected languages together with confidence.
+         * Whether the text is strikethrough.
          * 

          *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
-         * 
+         * bool strikeout = 8;
+         *
+         * @return The strikeout.
          */
-        public Builder addDetectedLanguages(
-            int index,
-            com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
-                builderForValue) {
-          if (detectedLanguagesBuilder_ == null) {
-            ensureDetectedLanguagesIsMutable();
-            detectedLanguages_.add(index, builderForValue.build());
-            onChanged();
-          } else {
-            detectedLanguagesBuilder_.addMessage(index, builderForValue.build());
-          }
-          return this;
-        }
+        boolean getStrikeout();
+
         /**
          *
          *
          * 
-         * A list of detected languages together with confidence.
+         * Whether the text is a subscript.
          * 

          *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
-         * 
+         * bool subscript = 9;
+         *
+         * @return The subscript.
          */
-        public Builder addAllDetectedLanguages(
-            java.lang.Iterable<
-                    ? extends com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage>
-                values) {
-          if (detectedLanguagesBuilder_ == null) {
-            ensureDetectedLanguagesIsMutable();
-            com.google.protobuf.AbstractMessageLite.Builder.addAll(values, detectedLanguages_);
-            onChanged();
-          } else {
-            detectedLanguagesBuilder_.addAllMessages(values);
-          }
-          return this;
-        }
+        boolean getSubscript();
+
         /**
          *
          *
          * 
-         * A list of detected languages together with confidence.
+         * Whether the text is a superscript.
          * 

          *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
-         * 
+         * bool superscript = 10;
+         *
+         * @return The superscript.
          */
-        public Builder clearDetectedLanguages() {
-          if (detectedLanguagesBuilder_ == null) {
-            detectedLanguages_ = java.util.Collections.emptyList();
-            bitField0_ = (bitField0_ & ~0x00000004);
-            onChanged();
-          } else {
-            detectedLanguagesBuilder_.clear();
-          }
-          return this;
-        }
+        boolean getSuperscript();
+
         /**
          *
          *
          * 
-         * A list of detected languages together with confidence.
+         * Whether the text is in small caps.
          * 

          *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
-         * 
+         * bool smallcaps = 11;
+         *
+         * @return The smallcaps.
          */
-        public Builder removeDetectedLanguages(int index) {
-          if (detectedLanguagesBuilder_ == null) {
-            ensureDetectedLanguagesIsMutable();
-            detectedLanguages_.remove(index);
-            onChanged();
-          } else {
-            detectedLanguagesBuilder_.remove(index);
-          }
-          return this;
-        }
+        boolean getSmallcaps();
+
         /**
          *
          *
          * 
-         * A list of detected languages together with confidence.
+         * TrueType weight on a scale `100` (thin) to `1000` (ultra-heavy).
+         * Normal is `400`, bold is `700`.
          * 

          *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
-         * 
+         * int32 font_weight = 12;
+         *
+         * @return The fontWeight.
          */
-        public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
-            getDetectedLanguagesBuilder(int index) {
-          return getDetectedLanguagesFieldBuilder().getBuilder(index);
-        }
+        int getFontWeight();
+
         /**
          *
          *
          * 
-         * A list of detected languages together with confidence.
+         * Whether the text is handwritten.
          * 

          *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
-         * 
+         * bool handwritten = 13;
+         *
+         * @return The handwritten.
          */
-        public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder
-            getDetectedLanguagesOrBuilder(int index) {
-          if (detectedLanguagesBuilder_ == null) {
-            return detectedLanguages_.get(index);
-          } else {
-            return detectedLanguagesBuilder_.getMessageOrBuilder(index);
-          }
-        }
+        boolean getHandwritten();
+
         /**
          *
          *
          * 
-         * A list of detected languages together with confidence.
+         * Color of the text.
          * 

          *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
-         * 
+         * .google.type.Color text_color = 14;
+         *
+         * @return Whether the textColor field is set.
          */
-        public java.util.List<
-                ? extends
-                    com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>
-            getDetectedLanguagesOrBuilderList() {
-          if (detectedLanguagesBuilder_ != null) {
-            return detectedLanguagesBuilder_.getMessageOrBuilderList();
-          } else {
-            return java.util.Collections.unmodifiableList(detectedLanguages_);
-          }
-        }
+        boolean hasTextColor();
         /**
          *
          *
          * 
-         * A list of detected languages together with confidence.
+         * Color of the text.
          * 

          *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
-         * 
+         * .google.type.Color text_color = 14;
+         *
+         * @return The textColor.
          */
-        public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
-            addDetectedLanguagesBuilder() {
-          return getDetectedLanguagesFieldBuilder()
-              .addBuilder(
-                  com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage
-                      .getDefaultInstance());
-        }
+        com.google.type.Color getTextColor();
         /**
          *
          *
          * 
-         * A list of detected languages together with confidence.
+         * Color of the text.
          * 

          *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
-         * 
+         * .google.type.Color text_color = 14;
          */
-        public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
-            addDetectedLanguagesBuilder(int index) {
-          return getDetectedLanguagesFieldBuilder()
-              .addBuilder(
-                  index,
-                  com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage
-                      .getDefaultInstance());
-        }
+        com.google.type.ColorOrBuilder getTextColorOrBuilder();
+
         /**
          *
          *
          * 
-         * A list of detected languages together with confidence.
+         * Color of the background.
          * 

          *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
-         * 
+         * .google.type.Color background_color = 15;
+         *
+         * @return Whether the backgroundColor field is set.
          */
-        public java.util.List<
-                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder>
-            getDetectedLanguagesBuilderList() {
-          return getDetectedLanguagesFieldBuilder().getBuilderList();
-        }
-
-        private com.google.protobuf.RepeatedFieldBuilderV3<
-                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage,
-                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder,
-                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>
-            getDetectedLanguagesFieldBuilder() {
-          if (detectedLanguagesBuilder_ == null) {
-            detectedLanguagesBuilder_ =
-                new com.google.protobuf.RepeatedFieldBuilderV3<
-                    com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage,
-                    com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder,
-                    com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>(
-                    detectedLanguages_,
-                    ((bitField0_ & 0x00000004) != 0),
-                    getParentForChildren(),
-                    isClean());
-            detectedLanguages_ = null;
-          }
-          return detectedLanguagesBuilder_;
-        }
-
-        @java.lang.Override
-        public final Builder setUnknownFields(
-            final com.google.protobuf.UnknownFieldSet unknownFields) {
-          return super.setUnknownFields(unknownFields);
-        }
-
-        @java.lang.Override
-        public final Builder mergeUnknownFields(
-            final com.google.protobuf.UnknownFieldSet unknownFields) {
-          return super.mergeUnknownFields(unknownFields);
-        }
-
-        // @@protoc_insertion_point(builder_scope:google.cloud.documentai.v1beta2.Document.Page.VisualElement)
-      }
-
-      // @@protoc_insertion_point(class_scope:google.cloud.documentai.v1beta2.Document.Page.VisualElement)
-      private static final com.google.cloud.documentai.v1beta2.Document.Page.VisualElement
-          DEFAULT_INSTANCE;
-
-      static {
-        DEFAULT_INSTANCE = new com.google.cloud.documentai.v1beta2.Document.Page.VisualElement();
-      }
-
-      public static com.google.cloud.documentai.v1beta2.Document.Page.VisualElement
-          getDefaultInstance() {
-        return DEFAULT_INSTANCE;
-      }
-
-      private static final com.google.protobuf.Parser PARSER =
-          new com.google.protobuf.AbstractParser() {
-            @java.lang.Override
-            public VisualElement parsePartialFrom(
-                com.google.protobuf.CodedInputStream input,
-                com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-                throws com.google.protobuf.InvalidProtocolBufferException {
-              Builder builder = newBuilder();
-              try {
-                builder.mergeFrom(input, extensionRegistry);
-              } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-                throw e.setUnfinishedMessage(builder.buildPartial());
-              } catch (com.google.protobuf.UninitializedMessageException e) {
-                throw e.asInvalidProtocolBufferException()
-                    .setUnfinishedMessage(builder.buildPartial());
-              } catch (java.io.IOException e) {
-                throw new com.google.protobuf.InvalidProtocolBufferException(e)
-                    .setUnfinishedMessage(builder.buildPartial());
-              }
-              return builder.buildPartial();
-            }
-          };
-
-      public static com.google.protobuf.Parser parser() {
-        return PARSER;
-      }
-
-      @java.lang.Override
-      public com.google.protobuf.Parser getParserForType() {
-        return PARSER;
-      }
-
-      @java.lang.Override
-      public com.google.cloud.documentai.v1beta2.Document.Page.VisualElement
-          getDefaultInstanceForType() {
-        return DEFAULT_INSTANCE;
+        boolean hasBackgroundColor();
+        /**
+         *
+         *
+         * 
+         * Color of the background.
+         * 

+         *
+         * .google.type.Color background_color = 15;
+         *
+         * @return The backgroundColor.
+         */
+        com.google.type.Color getBackgroundColor();
+        /**
+         *
+         *
+         * 
+         * Color of the background.
+         * 

+         *
+         * .google.type.Color background_color = 15;
+         */
+        com.google.type.ColorOrBuilder getBackgroundColorOrBuilder();
       }
-    }
-
-    public interface TableOrBuilder
-        extends
-        // @@protoc_insertion_point(interface_extends:google.cloud.documentai.v1beta2.Document.Page.Table)
-        com.google.protobuf.MessageOrBuilder {
-
-      /**
-       *
-       *
-       * 
-       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [Table][google.cloud.documentai.v1beta2.Document.Page.Table].
-       * 

-       *
-       * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
-       *
-       * @return Whether the layout field is set.
-       */
-      boolean hasLayout();
-      /**
-       *
-       *
-       * 
-       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [Table][google.cloud.documentai.v1beta2.Document.Page.Table].
-       * 

-       *
-       * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
-       *
-       * @return The layout.
-       */
-      com.google.cloud.documentai.v1beta2.Document.Page.Layout getLayout();
-      /**
-       *
-       *
-       * 
-       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [Table][google.cloud.documentai.v1beta2.Document.Page.Table].
-       * 

-       *
-       * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
-       */
-      com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder getLayoutOrBuilder();
-
-      /**
-       *
-       *
-       * 
-       * Header rows of the table.
-       * 

-       *
-       * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow header_rows = 2;
-       * 
-       */
-      java.util.List
-          getHeaderRowsList();
-      /**
-       *
-       *
-       * 
-       * Header rows of the table.
-       * 

-       *
-       * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow header_rows = 2;
-       * 
-       */
-      com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow getHeaderRows(int index);
-      /**
-       *
-       *
-       * 
-       * Header rows of the table.
-       * 

-       *
-       * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow header_rows = 2;
-       * 
-       */
-      int getHeaderRowsCount();
-      /**
-       *
-       *
-       * 
-       * Header rows of the table.
-       * 

-       *
-       * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow header_rows = 2;
-       * 
-       */
-      java.util.List<
-              ? extends com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRowOrBuilder>
-          getHeaderRowsOrBuilderList();
-      /**
-       *
-       *
-       * 
-       * Header rows of the table.
-       * 

-       *
-       * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow header_rows = 2;
-       * 
-       */
-      com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRowOrBuilder
-          getHeaderRowsOrBuilder(int index);
-
-      /**
-       *
-       *
-       * 
-       * Body rows of the table.
-       * 

-       *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow body_rows = 3;
-       * 
-       */
-      java.util.List
-          getBodyRowsList();
-      /**
-       *
-       *
-       * 
-       * Body rows of the table.
-       * 

-       *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow body_rows = 3;
-       * 
-       */
-      com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow getBodyRows(int index);
-      /**
-       *
-       *
-       * 
-       * Body rows of the table.
-       * 

-       *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow body_rows = 3;
-       * 
-       */
-      int getBodyRowsCount();
-      /**
-       *
-       *
-       * 
-       * Body rows of the table.
-       * 

-       *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow body_rows = 3;
-       * 
-       */
-      java.util.List<
-              ? extends com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRowOrBuilder>
-          getBodyRowsOrBuilderList();
-      /**
-       *
-       *
-       * 
-       * Body rows of the table.
-       * 

-       *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow body_rows = 3;
-       * 
-       */
-      com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRowOrBuilder
-          getBodyRowsOrBuilder(int index);
-
-      /**
-       *
-       *
-       * 
-       * A list of detected languages together with confidence.
-       * 

-       *
-       * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
-       * 
-       */
-      java.util.List
-          getDetectedLanguagesList();
-      /**
-       *
-       *
-       * 
-       * A list of detected languages together with confidence.
-       * 

-       *
-       * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
-       * 
-       */
-      com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage getDetectedLanguages(
-          int index);
-      /**
-       *
-       *
-       * 
-       * A list of detected languages together with confidence.
-       * 

-       *
-       * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
-       * 
-       */
-      int getDetectedLanguagesCount();
-      /**
-       *
-       *
-       * 
-       * A list of detected languages together with confidence.
-       * 

-       *
-       * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
-       * 
-       */
-      java.util.List<
-              ? extends com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>
-          getDetectedLanguagesOrBuilderList();
       /**
        *
        *
        * 
-       * A list of detected languages together with confidence.
+       * Font and other text style attributes.
        * 

        *
-       * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
-       * 
+       * Protobuf type {@code google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo}
        */
-      com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder
-          getDetectedLanguagesOrBuilder(int index);
-    }
-    /**
-     *
-     *
-     * 
-     * A table representation similar to HTML table structure.
-     * 

-     *
-     * Protobuf type {@code google.cloud.documentai.v1beta2.Document.Page.Table}
-     */
-    public static final class Table extends com.google.protobuf.GeneratedMessageV3
-        implements
-        // @@protoc_insertion_point(message_implements:google.cloud.documentai.v1beta2.Document.Page.Table)
-        TableOrBuilder {
-      private static final long serialVersionUID = 0L;
-      // Use Table.newBuilder() to construct.
-      private Table(com.google.protobuf.GeneratedMessageV3.Builder builder) {
-        super(builder);
-      }
-
-      private Table() {
-        headerRows_ = java.util.Collections.emptyList();
-        bodyRows_ = java.util.Collections.emptyList();
-        detectedLanguages_ = java.util.Collections.emptyList();
-      }
+      public static final class StyleInfo extends com.google.protobuf.GeneratedMessageV3
+          implements
+          // @@protoc_insertion_point(message_implements:google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo)
+          StyleInfoOrBuilder {
+        private static final long serialVersionUID = 0L;
+        // Use StyleInfo.newBuilder() to construct.
+        private StyleInfo(com.google.protobuf.GeneratedMessageV3.Builder builder) {
+          super(builder);
+        }
 
-      @java.lang.Override
-      @SuppressWarnings({"unused"})
-      protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
-        return new Table();
-      }
+        private StyleInfo() {
+          fontType_ = "";
+        }
 
-      public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
-        return com.google.cloud.documentai.v1beta2.DocumentProto
-            .internal_static_google_cloud_documentai_v1beta2_Document_Page_Table_descriptor;
-      }
+        @java.lang.Override
+        @SuppressWarnings({"unused"})
+        protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+          return new StyleInfo();
+        }
 
-      @java.lang.Override
-      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
-          internalGetFieldAccessorTable() {
-        return com.google.cloud.documentai.v1beta2.DocumentProto
-            .internal_static_google_cloud_documentai_v1beta2_Document_Page_Table_fieldAccessorTable
-            .ensureFieldAccessorsInitialized(
-                com.google.cloud.documentai.v1beta2.Document.Page.Table.class,
-                com.google.cloud.documentai.v1beta2.Document.Page.Table.Builder.class);
-      }
+        public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+          return com.google.cloud.documentai.v1beta2.DocumentProto
+              .internal_static_google_cloud_documentai_v1beta2_Document_Page_Token_StyleInfo_descriptor;
+        }
 
-      public interface TableRowOrBuilder
-          extends
-          // @@protoc_insertion_point(interface_extends:google.cloud.documentai.v1beta2.Document.Page.Table.TableRow)
-          com.google.protobuf.MessageOrBuilder {
+        @java.lang.Override
+        protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+            internalGetFieldAccessorTable() {
+          return com.google.cloud.documentai.v1beta2.DocumentProto
+              .internal_static_google_cloud_documentai_v1beta2_Document_Page_Token_StyleInfo_fieldAccessorTable
+              .ensureFieldAccessorsInitialized(
+                  com.google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo.class,
+                  com.google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo.Builder.class);
+        }
 
+        public static final int FONT_SIZE_FIELD_NUMBER = 1;
+        private int fontSize_ = 0;
         /**
          *
          *
          * 
-         * Cells that make up this row.
+         * Font size in points (`1` point is `¹⁄₇₂` inches).
          * 

          *
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableCell cells = 1;
-         * 
+         * int32 font_size = 1;
+         *
+         * @return The fontSize.
          */
-        java.util.List
-            getCellsList();
+        @java.lang.Override
+        public int getFontSize() {
+          return fontSize_;
+        }
+
+        public static final int PIXEL_FONT_SIZE_FIELD_NUMBER = 2;
+        private double pixelFontSize_ = 0D;
         /**
          *
          *
          * 
-         * Cells that make up this row.
+         * Font size in pixels, equal to _unrounded
+         * [font_size][google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo.font_size]_
+         * * _resolution_ ÷ `72.0`.
          * 

          *
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableCell cells = 1;
-         * 
+         * double pixel_font_size = 2;
+         *
+         * @return The pixelFontSize.
          */
-        com.google.cloud.documentai.v1beta2.Document.Page.Table.TableCell getCells(int index);
+        @java.lang.Override
+        public double getPixelFontSize() {
+          return pixelFontSize_;
+        }
+
+        public static final int LETTER_SPACING_FIELD_NUMBER = 3;
+        private double letterSpacing_ = 0D;
         /**
          *
          *
          * 
-         * Cells that make up this row.
+         * Letter spacing in points.
          * 

          *
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableCell cells = 1;
-         * 
-         */
-        int getCellsCount();
-        /**
-         *
+         * double letter_spacing = 3;
          *
-         * 
-         * Cells that make up this row.
+         * @return The letterSpacing.
+         */
+        @java.lang.Override
+        public double getLetterSpacing() {
+          return letterSpacing_;
+        }
+
+        public static final int FONT_TYPE_FIELD_NUMBER = 4;
+
+        @SuppressWarnings("serial")
+        private volatile java.lang.Object fontType_ = "";
+        /**
+         *
+         *
+         * 
+         * Name or style of the font.
          * 

          *
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableCell cells = 1;
-         * 
+         * string font_type = 4;
+         *
+         * @return The fontType.
          */
-        java.util.List<
-                ? extends
-                    com.google.cloud.documentai.v1beta2.Document.Page.Table.TableCellOrBuilder>
-            getCellsOrBuilderList();
+        @java.lang.Override
+        public java.lang.String getFontType() {
+          java.lang.Object ref = fontType_;
+          if (ref instanceof java.lang.String) {
+            return (java.lang.String) ref;
+          } else {
+            com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+            java.lang.String s = bs.toStringUtf8();
+            fontType_ = s;
+            return s;
+          }
+        }
         /**
          *
          *
          * 
-         * Cells that make up this row.
+         * Name or style of the font.
          * 

          *
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableCell cells = 1;
-         * 
+         * string font_type = 4;
+         *
+         * @return The bytes for fontType.
          */
-        com.google.cloud.documentai.v1beta2.Document.Page.Table.TableCellOrBuilder
-            getCellsOrBuilder(int index);
-      }
-      /**
-       *
-       *
-       * 
-       * A row of table cells.
-       * 

-       *
-       * Protobuf type {@code google.cloud.documentai.v1beta2.Document.Page.Table.TableRow}
-       */
-      public static final class TableRow extends com.google.protobuf.GeneratedMessageV3
-          implements
-          // @@protoc_insertion_point(message_implements:google.cloud.documentai.v1beta2.Document.Page.Table.TableRow)
-          TableRowOrBuilder {
-        private static final long serialVersionUID = 0L;
-        // Use TableRow.newBuilder() to construct.
-        private TableRow(com.google.protobuf.GeneratedMessageV3.Builder builder) {
-          super(builder);
+        @java.lang.Override
+        public com.google.protobuf.ByteString getFontTypeBytes() {
+          java.lang.Object ref = fontType_;
+          if (ref instanceof java.lang.String) {
+            com.google.protobuf.ByteString b =
+                com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+            fontType_ = b;
+            return b;
+          } else {
+            return (com.google.protobuf.ByteString) ref;
+          }
         }
 
-        private TableRow() {
-          cells_ = java.util.Collections.emptyList();
+        public static final int BOLD_FIELD_NUMBER = 5;
+        private boolean bold_ = false;
+        /**
+         *
+         *
+         * 
+         * Whether the text is bold (equivalent to
+         * [font_weight][google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo.font_weight]
+         * is at least `700`).
+         * 

+         *
+         * bool bold = 5;
+         *
+         * @return The bold.
+         */
+        @java.lang.Override
+        public boolean getBold() {
+          return bold_;
         }
 
+        public static final int ITALIC_FIELD_NUMBER = 6;
+        private boolean italic_ = false;
+        /**
+         *
+         *
+         * 
+         * Whether the text is italic.
+         * 

+         *
+         * bool italic = 6;
+         *
+         * @return The italic.
+         */
         @java.lang.Override
-        @SuppressWarnings({"unused"})
-        protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
-          return new TableRow();
+        public boolean getItalic() {
+          return italic_;
         }
 
-        public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
-          return com.google.cloud.documentai.v1beta2.DocumentProto
-              .internal_static_google_cloud_documentai_v1beta2_Document_Page_Table_TableRow_descriptor;
+        public static final int UNDERLINED_FIELD_NUMBER = 7;
+        private boolean underlined_ = false;
+        /**
+         *
+         *
+         * 
+         * Whether the text is underlined.
+         * 

+         *
+         * bool underlined = 7;
+         *
+         * @return The underlined.
+         */
+        @java.lang.Override
+        public boolean getUnderlined() {
+          return underlined_;
         }
 
+        public static final int STRIKEOUT_FIELD_NUMBER = 8;
+        private boolean strikeout_ = false;
+        /**
+         *
+         *
+         * 
+         * Whether the text is strikethrough.
+         * 

+         *
+         * bool strikeout = 8;
+         *
+         * @return The strikeout.
+         */
         @java.lang.Override
-        protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
-            internalGetFieldAccessorTable() {
-          return com.google.cloud.documentai.v1beta2.DocumentProto
-              .internal_static_google_cloud_documentai_v1beta2_Document_Page_Table_TableRow_fieldAccessorTable
-              .ensureFieldAccessorsInitialized(
-                  com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow.class,
-                  com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow.Builder.class);
+        public boolean getStrikeout() {
+          return strikeout_;
         }
 
-        public static final int CELLS_FIELD_NUMBER = 1;
+        public static final int SUBSCRIPT_FIELD_NUMBER = 9;
+        private boolean subscript_ = false;
+        /**
+         *
+         *
+         * 
+         * Whether the text is a subscript.
+         * 

+         *
+         * bool subscript = 9;
+         *
+         * @return The subscript.
+         */
+        @java.lang.Override
+        public boolean getSubscript() {
+          return subscript_;
+        }
 
-        @SuppressWarnings("serial")
-        private java.util.List
-            cells_;
+        public static final int SUPERSCRIPT_FIELD_NUMBER = 10;
+        private boolean superscript_ = false;
         /**
          *
          *
          * 
-         * Cells that make up this row.
+         * Whether the text is a superscript.
          * 

          *
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableCell cells = 1;
-         * 
+         * bool superscript = 10;
+         *
+         * @return The superscript.
          */
         @java.lang.Override
-        public java.util.List
-            getCellsList() {
-          return cells_;
+        public boolean getSuperscript() {
+          return superscript_;
+        }
+
+        public static final int SMALLCAPS_FIELD_NUMBER = 11;
+        private boolean smallcaps_ = false;
+        /**
+         *
+         *
+         * 
+         * Whether the text is in small caps.
+         * 

+         *
+         * bool smallcaps = 11;
+         *
+         * @return The smallcaps.
+         */
+        @java.lang.Override
+        public boolean getSmallcaps() {
+          return smallcaps_;
         }
+
+        public static final int FONT_WEIGHT_FIELD_NUMBER = 12;
+        private int fontWeight_ = 0;
         /**
          *
          *
          * 
-         * Cells that make up this row.
+         * TrueType weight on a scale `100` (thin) to `1000` (ultra-heavy).
+         * Normal is `400`, bold is `700`.
          * 

          *
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableCell cells = 1;
-         * 
+         * int32 font_weight = 12;
+         *
+         * @return The fontWeight.
          */
         @java.lang.Override
-        public java.util.List<
-                ? extends
-                    com.google.cloud.documentai.v1beta2.Document.Page.Table.TableCellOrBuilder>
-            getCellsOrBuilderList() {
-          return cells_;
+        public int getFontWeight() {
+          return fontWeight_;
         }
+
+        public static final int HANDWRITTEN_FIELD_NUMBER = 13;
+        private boolean handwritten_ = false;
         /**
          *
          *
          * 
-         * Cells that make up this row.
+         * Whether the text is handwritten.
          * 

          *
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableCell cells = 1;
-         * 
+         * bool handwritten = 13;
+         *
+         * @return The handwritten.
          */
         @java.lang.Override
-        public int getCellsCount() {
-          return cells_.size();
+        public boolean getHandwritten() {
+          return handwritten_;
         }
+
+        public static final int TEXT_COLOR_FIELD_NUMBER = 14;
+        private com.google.type.Color textColor_;
         /**
          *
          *
          * 
-         * Cells that make up this row.
+         * Color of the text.
          * 

          *
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableCell cells = 1;
-         * 
+         * .google.type.Color text_color = 14;
+         *
+         * @return Whether the textColor field is set.
          */
         @java.lang.Override
-        public com.google.cloud.documentai.v1beta2.Document.Page.Table.TableCell getCells(
-            int index) {
-          return cells_.get(index);
+        public boolean hasTextColor() {
+          return textColor_ != null;
         }
         /**
          *
          *
          * 
-         * Cells that make up this row.
+         * Color of the text.
          * 

          *
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableCell cells = 1;
-         * 
+         * .google.type.Color text_color = 14;
+         *
+         * @return The textColor.
          */
         @java.lang.Override
-        public com.google.cloud.documentai.v1beta2.Document.Page.Table.TableCellOrBuilder
-            getCellsOrBuilder(int index) {
-          return cells_.get(index);
+        public com.google.type.Color getTextColor() {
+          return textColor_ == null ? com.google.type.Color.getDefaultInstance() : textColor_;
+        }
+        /**
+         *
+         *
+         * 
+         * Color of the text.
+         * 

+         *
+         * .google.type.Color text_color = 14;
+         */
+        @java.lang.Override
+        public com.google.type.ColorOrBuilder getTextColorOrBuilder() {
+          return textColor_ == null ? com.google.type.Color.getDefaultInstance() : textColor_;
+        }
+
+        public static final int BACKGROUND_COLOR_FIELD_NUMBER = 15;
+        private com.google.type.Color backgroundColor_;
+        /**
+         *
+         *
+         * 
+         * Color of the background.
+         * 

+         *
+         * .google.type.Color background_color = 15;
+         *
+         * @return Whether the backgroundColor field is set.
+         */
+        @java.lang.Override
+        public boolean hasBackgroundColor() {
+          return backgroundColor_ != null;
+        }
+        /**
+         *
+         *
+         * 
+         * Color of the background.
+         * 

+         *
+         * .google.type.Color background_color = 15;
+         *
+         * @return The backgroundColor.
+         */
+        @java.lang.Override
+        public com.google.type.Color getBackgroundColor() {
+          return backgroundColor_ == null
+              ? com.google.type.Color.getDefaultInstance()
+              : backgroundColor_;
+        }
+        /**
+         *
+         *
+         * 
+         * Color of the background.
+         * 

+         *
+         * .google.type.Color background_color = 15;
+         */
+        @java.lang.Override
+        public com.google.type.ColorOrBuilder getBackgroundColorOrBuilder() {
+          return backgroundColor_ == null
+              ? com.google.type.Color.getDefaultInstance()
+              : backgroundColor_;
         }
 
         private byte memoizedIsInitialized = -1;
@@ -17157,8 +17729,50 @@ public final boolean isInitialized() {
         @java.lang.Override
         public void writeTo(com.google.protobuf.CodedOutputStream output)
             throws java.io.IOException {
-          for (int i = 0; i < cells_.size(); i++) {
-            output.writeMessage(1, cells_.get(i));
+          if (fontSize_ != 0) {
+            output.writeInt32(1, fontSize_);
+          }
+          if (java.lang.Double.doubleToRawLongBits(pixelFontSize_) != 0) {
+            output.writeDouble(2, pixelFontSize_);
+          }
+          if (java.lang.Double.doubleToRawLongBits(letterSpacing_) != 0) {
+            output.writeDouble(3, letterSpacing_);
+          }
+          if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(fontType_)) {
+            com.google.protobuf.GeneratedMessageV3.writeString(output, 4, fontType_);
+          }
+          if (bold_ != false) {
+            output.writeBool(5, bold_);
+          }
+          if (italic_ != false) {
+            output.writeBool(6, italic_);
+          }
+          if (underlined_ != false) {
+            output.writeBool(7, underlined_);
+          }
+          if (strikeout_ != false) {
+            output.writeBool(8, strikeout_);
+          }
+          if (subscript_ != false) {
+            output.writeBool(9, subscript_);
+          }
+          if (superscript_ != false) {
+            output.writeBool(10, superscript_);
+          }
+          if (smallcaps_ != false) {
+            output.writeBool(11, smallcaps_);
+          }
+          if (fontWeight_ != 0) {
+            output.writeInt32(12, fontWeight_);
+          }
+          if (handwritten_ != false) {
+            output.writeBool(13, handwritten_);
+          }
+          if (textColor_ != null) {
+            output.writeMessage(14, getTextColor());
+          }
+          if (backgroundColor_ != null) {
+            output.writeMessage(15, getBackgroundColor());
           }
           getUnknownFields().writeTo(output);
         }
@@ -17169,8 +17783,51 @@ public int getSerializedSize() {
           if (size != -1) return size;
 
           size = 0;
-          for (int i = 0; i < cells_.size(); i++) {
-            size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, cells_.get(i));
+          if (fontSize_ != 0) {
+            size += com.google.protobuf.CodedOutputStream.computeInt32Size(1, fontSize_);
+          }
+          if (java.lang.Double.doubleToRawLongBits(pixelFontSize_) != 0) {
+            size += com.google.protobuf.CodedOutputStream.computeDoubleSize(2, pixelFontSize_);
+          }
+          if (java.lang.Double.doubleToRawLongBits(letterSpacing_) != 0) {
+            size += com.google.protobuf.CodedOutputStream.computeDoubleSize(3, letterSpacing_);
+          }
+          if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(fontType_)) {
+            size += com.google.protobuf.GeneratedMessageV3.computeStringSize(4, fontType_);
+          }
+          if (bold_ != false) {
+            size += com.google.protobuf.CodedOutputStream.computeBoolSize(5, bold_);
+          }
+          if (italic_ != false) {
+            size += com.google.protobuf.CodedOutputStream.computeBoolSize(6, italic_);
+          }
+          if (underlined_ != false) {
+            size += com.google.protobuf.CodedOutputStream.computeBoolSize(7, underlined_);
+          }
+          if (strikeout_ != false) {
+            size += com.google.protobuf.CodedOutputStream.computeBoolSize(8, strikeout_);
+          }
+          if (subscript_ != false) {
+            size += com.google.protobuf.CodedOutputStream.computeBoolSize(9, subscript_);
+          }
+          if (superscript_ != false) {
+            size += com.google.protobuf.CodedOutputStream.computeBoolSize(10, superscript_);
+          }
+          if (smallcaps_ != false) {
+            size += com.google.protobuf.CodedOutputStream.computeBoolSize(11, smallcaps_);
+          }
+          if (fontWeight_ != 0) {
+            size += com.google.protobuf.CodedOutputStream.computeInt32Size(12, fontWeight_);
+          }
+          if (handwritten_ != false) {
+            size += com.google.protobuf.CodedOutputStream.computeBoolSize(13, handwritten_);
+          }
+          if (textColor_ != null) {
+            size += com.google.protobuf.CodedOutputStream.computeMessageSize(14, getTextColor());
+          }
+          if (backgroundColor_ != null) {
+            size +=
+                com.google.protobuf.CodedOutputStream.computeMessageSize(15, getBackgroundColor());
           }
           size += getUnknownFields().getSerializedSize();
           memoizedSize = size;
@@ -17182,13 +17839,35 @@ public boolean equals(final java.lang.Object obj) {
           if (obj == this) {
             return true;
           }
-          if (!(obj instanceof com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow)) {
+          if (!(obj instanceof com.google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo)) {
             return super.equals(obj);
           }
-          com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow other =
-              (com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow) obj;
-
-          if (!getCellsList().equals(other.getCellsList())) return false;
+          com.google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo other =
+              (com.google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo) obj;
+
+          if (getFontSize() != other.getFontSize()) return false;
+          if (java.lang.Double.doubleToLongBits(getPixelFontSize())
+              != java.lang.Double.doubleToLongBits(other.getPixelFontSize())) return false;
+          if (java.lang.Double.doubleToLongBits(getLetterSpacing())
+              != java.lang.Double.doubleToLongBits(other.getLetterSpacing())) return false;
+          if (!getFontType().equals(other.getFontType())) return false;
+          if (getBold() != other.getBold()) return false;
+          if (getItalic() != other.getItalic()) return false;
+          if (getUnderlined() != other.getUnderlined()) return false;
+          if (getStrikeout() != other.getStrikeout()) return false;
+          if (getSubscript() != other.getSubscript()) return false;
+          if (getSuperscript() != other.getSuperscript()) return false;
+          if (getSmallcaps() != other.getSmallcaps()) return false;
+          if (getFontWeight() != other.getFontWeight()) return false;
+          if (getHandwritten() != other.getHandwritten()) return false;
+          if (hasTextColor() != other.hasTextColor()) return false;
+          if (hasTextColor()) {
+            if (!getTextColor().equals(other.getTextColor())) return false;
+          }
+          if (hasBackgroundColor() != other.hasBackgroundColor()) return false;
+          if (hasBackgroundColor()) {
+            if (!getBackgroundColor().equals(other.getBackgroundColor())) return false;
+          }
           if (!getUnknownFields().equals(other.getUnknownFields())) return false;
           return true;
         }
@@ -17200,69 +17879,105 @@ public int hashCode() {
           }
           int hash = 41;
           hash = (19 * hash) + getDescriptor().hashCode();
-          if (getCellsCount() > 0) {
-            hash = (37 * hash) + CELLS_FIELD_NUMBER;
-            hash = (53 * hash) + getCellsList().hashCode();
+          hash = (37 * hash) + FONT_SIZE_FIELD_NUMBER;
+          hash = (53 * hash) + getFontSize();
+          hash = (37 * hash) + PIXEL_FONT_SIZE_FIELD_NUMBER;
+          hash =
+              (53 * hash)
+                  + com.google.protobuf.Internal.hashLong(
+                      java.lang.Double.doubleToLongBits(getPixelFontSize()));
+          hash = (37 * hash) + LETTER_SPACING_FIELD_NUMBER;
+          hash =
+              (53 * hash)
+                  + com.google.protobuf.Internal.hashLong(
+                      java.lang.Double.doubleToLongBits(getLetterSpacing()));
+          hash = (37 * hash) + FONT_TYPE_FIELD_NUMBER;
+          hash = (53 * hash) + getFontType().hashCode();
+          hash = (37 * hash) + BOLD_FIELD_NUMBER;
+          hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getBold());
+          hash = (37 * hash) + ITALIC_FIELD_NUMBER;
+          hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getItalic());
+          hash = (37 * hash) + UNDERLINED_FIELD_NUMBER;
+          hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getUnderlined());
+          hash = (37 * hash) + STRIKEOUT_FIELD_NUMBER;
+          hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getStrikeout());
+          hash = (37 * hash) + SUBSCRIPT_FIELD_NUMBER;
+          hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getSubscript());
+          hash = (37 * hash) + SUPERSCRIPT_FIELD_NUMBER;
+          hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getSuperscript());
+          hash = (37 * hash) + SMALLCAPS_FIELD_NUMBER;
+          hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getSmallcaps());
+          hash = (37 * hash) + FONT_WEIGHT_FIELD_NUMBER;
+          hash = (53 * hash) + getFontWeight();
+          hash = (37 * hash) + HANDWRITTEN_FIELD_NUMBER;
+          hash = (53 * hash) + com.google.protobuf.Internal.hashBoolean(getHandwritten());
+          if (hasTextColor()) {
+            hash = (37 * hash) + TEXT_COLOR_FIELD_NUMBER;
+            hash = (53 * hash) + getTextColor().hashCode();
+          }
+          if (hasBackgroundColor()) {
+            hash = (37 * hash) + BACKGROUND_COLOR_FIELD_NUMBER;
+            hash = (53 * hash) + getBackgroundColor().hashCode();
           }
           hash = (29 * hash) + getUnknownFields().hashCode();
           memoizedHashCode = hash;
           return hash;
         }
 
-        public static com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow parseFrom(
+        public static com.google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo parseFrom(
             java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
           return PARSER.parseFrom(data);
         }
 
-        public static com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow parseFrom(
+        public static com.google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo parseFrom(
             java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
           return PARSER.parseFrom(data, extensionRegistry);
         }
 
-        public static com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow parseFrom(
+        public static com.google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo parseFrom(
             com.google.protobuf.ByteString data)
             throws com.google.protobuf.InvalidProtocolBufferException {
           return PARSER.parseFrom(data);
         }
 
-        public static com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow parseFrom(
+        public static com.google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo parseFrom(
             com.google.protobuf.ByteString data,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
           return PARSER.parseFrom(data, extensionRegistry);
         }
 
-        public static com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow parseFrom(
+        public static com.google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo parseFrom(
             byte[] data) throws com.google.protobuf.InvalidProtocolBufferException {
           return PARSER.parseFrom(data);
         }
 
-        public static com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow parseFrom(
+        public static com.google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo parseFrom(
             byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws com.google.protobuf.InvalidProtocolBufferException {
           return PARSER.parseFrom(data, extensionRegistry);
         }
 
-        public static com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow parseFrom(
+        public static com.google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo parseFrom(
             java.io.InputStream input) throws java.io.IOException {
           return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
         }
 
-        public static com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow parseFrom(
+        public static com.google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo parseFrom(
             java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws java.io.IOException {
           return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
               PARSER, input, extensionRegistry);
         }
 
-        public static com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow
+        public static com.google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo
             parseDelimitedFrom(java.io.InputStream input) throws java.io.IOException {
           return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
               PARSER, input);
         }
 
-        public static com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow
+        public static com.google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo
             parseDelimitedFrom(
                 java.io.InputStream input,
                 com.google.protobuf.ExtensionRegistryLite extensionRegistry)
@@ -17271,12 +17986,12 @@ public static com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow p
               PARSER, input, extensionRegistry);
         }
 
-        public static com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow parseFrom(
+        public static com.google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo parseFrom(
             com.google.protobuf.CodedInputStream input) throws java.io.IOException {
           return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
         }
 
-        public static com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow parseFrom(
+        public static com.google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo parseFrom(
             com.google.protobuf.CodedInputStream input,
             com.google.protobuf.ExtensionRegistryLite extensionRegistry)
             throws java.io.IOException {
@@ -17294,7 +18009,7 @@ public static Builder newBuilder() {
         }
 
         public static Builder newBuilder(
-            com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow prototype) {
+            com.google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo prototype) {
           return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
         }
 
@@ -17313,33 +18028,34 @@ protected Builder newBuilderForType(
          *
          *
          * 
-         * A row of table cells.
+         * Font and other text style attributes.
          * 

          *
-         * Protobuf type {@code google.cloud.documentai.v1beta2.Document.Page.Table.TableRow}
+         * Protobuf type {@code google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo}
          */
         public static final class Builder
             extends com.google.protobuf.GeneratedMessageV3.Builder
             implements
-            // @@protoc_insertion_point(builder_implements:google.cloud.documentai.v1beta2.Document.Page.Table.TableRow)
-            com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRowOrBuilder {
+            // @@protoc_insertion_point(builder_implements:google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo)
+            com.google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfoOrBuilder {
           public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
             return com.google.cloud.documentai.v1beta2.DocumentProto
-                .internal_static_google_cloud_documentai_v1beta2_Document_Page_Table_TableRow_descriptor;
+                .internal_static_google_cloud_documentai_v1beta2_Document_Page_Token_StyleInfo_descriptor;
           }
 
           @java.lang.Override
           protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
               internalGetFieldAccessorTable() {
             return com.google.cloud.documentai.v1beta2.DocumentProto
-                .internal_static_google_cloud_documentai_v1beta2_Document_Page_Table_TableRow_fieldAccessorTable
+                .internal_static_google_cloud_documentai_v1beta2_Document_Page_Token_StyleInfo_fieldAccessorTable
                 .ensureFieldAccessorsInitialized(
-                    com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow.class,
-                    com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow.Builder.class);
+                    com.google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo.class,
+                    com.google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo.Builder
+                        .class);
           }
 
           // Construct using
-          // com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow.newBuilder()
+          // com.google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo.newBuilder()
           private Builder() {}
 
           private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
@@ -17350,32 +18066,48 @@ private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
           public Builder clear() {
             super.clear();
             bitField0_ = 0;
-            if (cellsBuilder_ == null) {
-              cells_ = java.util.Collections.emptyList();
-            } else {
-              cells_ = null;
-              cellsBuilder_.clear();
+            fontSize_ = 0;
+            pixelFontSize_ = 0D;
+            letterSpacing_ = 0D;
+            fontType_ = "";
+            bold_ = false;
+            italic_ = false;
+            underlined_ = false;
+            strikeout_ = false;
+            subscript_ = false;
+            superscript_ = false;
+            smallcaps_ = false;
+            fontWeight_ = 0;
+            handwritten_ = false;
+            textColor_ = null;
+            if (textColorBuilder_ != null) {
+              textColorBuilder_.dispose();
+              textColorBuilder_ = null;
+            }
+            backgroundColor_ = null;
+            if (backgroundColorBuilder_ != null) {
+              backgroundColorBuilder_.dispose();
+              backgroundColorBuilder_ = null;
             }
-            bitField0_ = (bitField0_ & ~0x00000001);
             return this;
           }
 
           @java.lang.Override
           public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
             return com.google.cloud.documentai.v1beta2.DocumentProto
-                .internal_static_google_cloud_documentai_v1beta2_Document_Page_Table_TableRow_descriptor;
+                .internal_static_google_cloud_documentai_v1beta2_Document_Page_Token_StyleInfo_descriptor;
           }
 
           @java.lang.Override
-          public com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow
+          public com.google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo
               getDefaultInstanceForType() {
-            return com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow
+            return com.google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo
                 .getDefaultInstance();
           }
 
           @java.lang.Override
-          public com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow build() {
-            com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow result =
+          public com.google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo build() {
+            com.google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo result =
                 buildPartial();
             if (!result.isInitialized()) {
               throw newUninitializedMessageException(result);
@@ -17384,10 +18116,9 @@ public com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow build()
           }
 
           @java.lang.Override
-          public com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow buildPartial() {
-            com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow result =
-                new com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow(this);
-            buildPartialRepeatedFields(result);
+          public com.google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo buildPartial() {
+            com.google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo result =
+                new com.google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo(this);
             if (bitField0_ != 0) {
               buildPartial0(result);
             }
@@ -17395,22 +18126,58 @@ public com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow buildPar
             return result;
           }
 
-          private void buildPartialRepeatedFields(
-              com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow result) {
-            if (cellsBuilder_ == null) {
-              if (((bitField0_ & 0x00000001) != 0)) {
-                cells_ = java.util.Collections.unmodifiableList(cells_);
-                bitField0_ = (bitField0_ & ~0x00000001);
-              }
-              result.cells_ = cells_;
-            } else {
-              result.cells_ = cellsBuilder_.build();
-            }
-          }
-
           private void buildPartial0(
-              com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow result) {
+              com.google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo result) {
             int from_bitField0_ = bitField0_;
+            if (((from_bitField0_ & 0x00000001) != 0)) {
+              result.fontSize_ = fontSize_;
+            }
+            if (((from_bitField0_ & 0x00000002) != 0)) {
+              result.pixelFontSize_ = pixelFontSize_;
+            }
+            if (((from_bitField0_ & 0x00000004) != 0)) {
+              result.letterSpacing_ = letterSpacing_;
+            }
+            if (((from_bitField0_ & 0x00000008) != 0)) {
+              result.fontType_ = fontType_;
+            }
+            if (((from_bitField0_ & 0x00000010) != 0)) {
+              result.bold_ = bold_;
+            }
+            if (((from_bitField0_ & 0x00000020) != 0)) {
+              result.italic_ = italic_;
+            }
+            if (((from_bitField0_ & 0x00000040) != 0)) {
+              result.underlined_ = underlined_;
+            }
+            if (((from_bitField0_ & 0x00000080) != 0)) {
+              result.strikeout_ = strikeout_;
+            }
+            if (((from_bitField0_ & 0x00000100) != 0)) {
+              result.subscript_ = subscript_;
+            }
+            if (((from_bitField0_ & 0x00000200) != 0)) {
+              result.superscript_ = superscript_;
+            }
+            if (((from_bitField0_ & 0x00000400) != 0)) {
+              result.smallcaps_ = smallcaps_;
+            }
+            if (((from_bitField0_ & 0x00000800) != 0)) {
+              result.fontWeight_ = fontWeight_;
+            }
+            if (((from_bitField0_ & 0x00001000) != 0)) {
+              result.handwritten_ = handwritten_;
+            }
+            if (((from_bitField0_ & 0x00002000) != 0)) {
+              result.textColor_ =
+                  textColorBuilder_ == null ? textColor_ : textColorBuilder_.build();
+            }
+            if (((from_bitField0_ & 0x00004000) != 0)) {
+              result.backgroundColor_ =
+                  backgroundColorBuilder_ == null
+                      ? backgroundColor_
+                      : backgroundColorBuilder_.build();
+            }
           }
 
           @java.lang.Override
@@ -17450,9 +18217,10 @@ public Builder addRepeatedField(
 
           @java.lang.Override
           public Builder mergeFrom(com.google.protobuf.Message other) {
-            if (other instanceof com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow) {
+            if (other
+                instanceof com.google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo) {
               return mergeFrom(
-                  (com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow) other);
+                  (com.google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo) other);
             } else {
               super.mergeFrom(other);
               return this;
@@ -17460,36 +18228,56 @@ public Builder mergeFrom(com.google.protobuf.Message other) {
           }
 
           public Builder mergeFrom(
-              com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow other) {
+              com.google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo other) {
             if (other
-                == com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow
+                == com.google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo
                     .getDefaultInstance()) return this;
-            if (cellsBuilder_ == null) {
-              if (!other.cells_.isEmpty()) {
-                if (cells_.isEmpty()) {
-                  cells_ = other.cells_;
-                  bitField0_ = (bitField0_ & ~0x00000001);
-                } else {
-                  ensureCellsIsMutable();
-                  cells_.addAll(other.cells_);
-                }
-                onChanged();
-              }
-            } else {
-              if (!other.cells_.isEmpty()) {
-                if (cellsBuilder_.isEmpty()) {
-                  cellsBuilder_.dispose();
-                  cellsBuilder_ = null;
-                  cells_ = other.cells_;
-                  bitField0_ = (bitField0_ & ~0x00000001);
-                  cellsBuilder_ =
-                      com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders
-                          ? getCellsFieldBuilder()
-                          : null;
-                } else {
-                  cellsBuilder_.addAllMessages(other.cells_);
-                }
-              }
+            if (other.getFontSize() != 0) {
+              setFontSize(other.getFontSize());
+            }
+            if (other.getPixelFontSize() != 0D) {
+              setPixelFontSize(other.getPixelFontSize());
+            }
+            if (other.getLetterSpacing() != 0D) {
+              setLetterSpacing(other.getLetterSpacing());
+            }
+            if (!other.getFontType().isEmpty()) {
+              fontType_ = other.fontType_;
+              bitField0_ |= 0x00000008;
+              onChanged();
+            }
+            if (other.getBold() != false) {
+              setBold(other.getBold());
+            }
+            if (other.getItalic() != false) {
+              setItalic(other.getItalic());
+            }
+            if (other.getUnderlined() != false) {
+              setUnderlined(other.getUnderlined());
+            }
+            if (other.getStrikeout() != false) {
+              setStrikeout(other.getStrikeout());
+            }
+            if (other.getSubscript() != false) {
+              setSubscript(other.getSubscript());
+            }
+            if (other.getSuperscript() != false) {
+              setSuperscript(other.getSuperscript());
+            }
+            if (other.getSmallcaps() != false) {
+              setSmallcaps(other.getSmallcaps());
+            }
+            if (other.getFontWeight() != 0) {
+              setFontWeight(other.getFontWeight());
+            }
+            if (other.getHandwritten() != false) {
+              setHandwritten(other.getHandwritten());
+            }
+            if (other.hasTextColor()) {
+              mergeTextColor(other.getTextColor());
+            }
+            if (other.hasBackgroundColor()) {
+              mergeBackgroundColor(other.getBackgroundColor());
             }
             this.mergeUnknownFields(other.getUnknownFields());
             onChanged();
@@ -17517,21 +18305,97 @@ public Builder mergeFrom(
                   case 0:
                     done = true;
                     break;
-                  case 10:
+                  case 8:
                     {
-                      com.google.cloud.documentai.v1beta2.Document.Page.Table.TableCell m =
-                          input.readMessage(
-                              com.google.cloud.documentai.v1beta2.Document.Page.Table.TableCell
-                                  .parser(),
-                              extensionRegistry);
-                      if (cellsBuilder_ == null) {
-                        ensureCellsIsMutable();
-                        cells_.add(m);
-                      } else {
-                        cellsBuilder_.addMessage(m);
-                      }
+                      fontSize_ = input.readInt32();
+                      bitField0_ |= 0x00000001;
                       break;
-                    } // case 10
+                    } // case 8
+                  case 17:
+                    {
+                      pixelFontSize_ = input.readDouble();
+                      bitField0_ |= 0x00000002;
+                      break;
+                    } // case 17
+                  case 25:
+                    {
+                      letterSpacing_ = input.readDouble();
+                      bitField0_ |= 0x00000004;
+                      break;
+                    } // case 25
+                  case 34:
+                    {
+                      fontType_ = input.readStringRequireUtf8();
+                      bitField0_ |= 0x00000008;
+                      break;
+                    } // case 34
+                  case 40:
+                    {
+                      bold_ = input.readBool();
+                      bitField0_ |= 0x00000010;
+                      break;
+                    } // case 40
+                  case 48:
+                    {
+                      italic_ = input.readBool();
+                      bitField0_ |= 0x00000020;
+                      break;
+                    } // case 48
+                  case 56:
+                    {
+                      underlined_ = input.readBool();
+                      bitField0_ |= 0x00000040;
+                      break;
+                    } // case 56
+                  case 64:
+                    {
+                      strikeout_ = input.readBool();
+                      bitField0_ |= 0x00000080;
+                      break;
+                    } // case 64
+                  case 72:
+                    {
+                      subscript_ = input.readBool();
+                      bitField0_ |= 0x00000100;
+                      break;
+                    } // case 72
+                  case 80:
+                    {
+                      superscript_ = input.readBool();
+                      bitField0_ |= 0x00000200;
+                      break;
+                    } // case 80
+                  case 88:
+                    {
+                      smallcaps_ = input.readBool();
+                      bitField0_ |= 0x00000400;
+                      break;
+                    } // case 88
+                  case 96:
+                    {
+                      fontWeight_ = input.readInt32();
+                      bitField0_ |= 0x00000800;
+                      break;
+                    } // case 96
+                  case 104:
+                    {
+                      handwritten_ = input.readBool();
+                      bitField0_ |= 0x00001000;
+                      break;
+                    } // case 104
+                  case 114:
+                    {
+                      input.readMessage(getTextColorFieldBuilder().getBuilder(), extensionRegistry);
+                      bitField0_ |= 0x00002000;
+                      break;
+                    } // case 114
+                  case 122:
+                    {
+                      input.readMessage(
+                          getBackgroundColorFieldBuilder().getBuilder(), extensionRegistry);
+                      bitField0_ |= 0x00004000;
+                      break;
+                    } // case 122
                   default:
                     {
                       if (!super.parseUnknownField(input, extensionRegistry, tag)) {
@@ -17551,2322 +18415,3565 @@ public Builder mergeFrom(
 
           private int bitField0_;
 
-          private java.util.List
-              cells_ = java.util.Collections.emptyList();
-
-          private void ensureCellsIsMutable() {
-            if (!((bitField0_ & 0x00000001) != 0)) {
-              cells_ =
-                  new java.util.ArrayList<
-                      com.google.cloud.documentai.v1beta2.Document.Page.Table.TableCell>(cells_);
-              bitField0_ |= 0x00000001;
-            }
-          }
-
-          private com.google.protobuf.RepeatedFieldBuilderV3<
-                  com.google.cloud.documentai.v1beta2.Document.Page.Table.TableCell,
-                  com.google.cloud.documentai.v1beta2.Document.Page.Table.TableCell.Builder,
-                  com.google.cloud.documentai.v1beta2.Document.Page.Table.TableCellOrBuilder>
-              cellsBuilder_;
-
+          private int fontSize_;
           /**
            *
            *
            * 
-           * Cells that make up this row.
+           * Font size in points (`1` point is `¹⁄₇₂` inches).
            * 

            *
-           * 
-           * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableCell cells = 1;
-           * 
+           * int32 font_size = 1;
+           *
+           * @return The fontSize.
            */
-          public java.util.List
-              getCellsList() {
-            if (cellsBuilder_ == null) {
-              return java.util.Collections.unmodifiableList(cells_);
-            } else {
-              return cellsBuilder_.getMessageList();
-            }
+          @java.lang.Override
+          public int getFontSize() {
+            return fontSize_;
           }
           /**
            *
            *
            * 
-           * Cells that make up this row.
+           * Font size in points (`1` point is `¹⁄₇₂` inches).
            * 

            *
-           * 
-           * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableCell cells = 1;
-           * 
+           * int32 font_size = 1;
+           *
+           * @param value The fontSize to set.
+           * @return This builder for chaining.
            */
-          public int getCellsCount() {
-            if (cellsBuilder_ == null) {
-              return cells_.size();
-            } else {
-              return cellsBuilder_.getCount();
-            }
+          public Builder setFontSize(int value) {
+
+            fontSize_ = value;
+            bitField0_ |= 0x00000001;
+            onChanged();
+            return this;
           }
           /**
            *
            *
            * 
-           * Cells that make up this row.
+           * Font size in points (`1` point is `¹⁄₇₂` inches).
            * 

            *
-           * 
-           * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableCell cells = 1;
-           * 
+           * int32 font_size = 1;
+           *
+           * @return This builder for chaining.
            */
-          public com.google.cloud.documentai.v1beta2.Document.Page.Table.TableCell getCells(
-              int index) {
-            if (cellsBuilder_ == null) {
-              return cells_.get(index);
-            } else {
-              return cellsBuilder_.getMessage(index);
-            }
+          public Builder clearFontSize() {
+            bitField0_ = (bitField0_ & ~0x00000001);
+            fontSize_ = 0;
+            onChanged();
+            return this;
           }
+
+          private double pixelFontSize_;
           /**
            *
            *
            * 
-           * Cells that make up this row.
+           * Font size in pixels, equal to _unrounded
+           * [font_size][google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo.font_size]_
+           * * _resolution_ ÷ `72.0`.
            * 

            *
-           * 
-           * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableCell cells = 1;
-           * 
+           * double pixel_font_size = 2;
+           *
+           * @return The pixelFontSize.
            */
-          public Builder setCells(
-              int index, com.google.cloud.documentai.v1beta2.Document.Page.Table.TableCell value) {
-            if (cellsBuilder_ == null) {
-              if (value == null) {
-                throw new NullPointerException();
-              }
-              ensureCellsIsMutable();
-              cells_.set(index, value);
-              onChanged();
-            } else {
-              cellsBuilder_.setMessage(index, value);
-            }
-            return this;
+          @java.lang.Override
+          public double getPixelFontSize() {
+            return pixelFontSize_;
           }
           /**
            *
            *
            * 
-           * Cells that make up this row.
+           * Font size in pixels, equal to _unrounded
+           * [font_size][google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo.font_size]_
+           * * _resolution_ ÷ `72.0`.
            * 

            *
-           * 
-           * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableCell cells = 1;
-           * 
+           * double pixel_font_size = 2;
+           *
+           * @param value The pixelFontSize to set.
+           * @return This builder for chaining.
            */
-          public Builder setCells(
-              int index,
-              com.google.cloud.documentai.v1beta2.Document.Page.Table.TableCell.Builder
-                  builderForValue) {
-            if (cellsBuilder_ == null) {
-              ensureCellsIsMutable();
-              cells_.set(index, builderForValue.build());
-              onChanged();
-            } else {
-              cellsBuilder_.setMessage(index, builderForValue.build());
-            }
+          public Builder setPixelFontSize(double value) {
+
+            pixelFontSize_ = value;
+            bitField0_ |= 0x00000002;
+            onChanged();
             return this;
           }
           /**
            *
            *
            * 
-           * Cells that make up this row.
+           * Font size in pixels, equal to _unrounded
+           * [font_size][google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo.font_size]_
+           * * _resolution_ ÷ `72.0`.
            * 

            *
-           * 
-           * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableCell cells = 1;
-           * 
+           * double pixel_font_size = 2;
+           *
+           * @return This builder for chaining.
            */
-          public Builder addCells(
-              com.google.cloud.documentai.v1beta2.Document.Page.Table.TableCell value) {
-            if (cellsBuilder_ == null) {
-              if (value == null) {
-                throw new NullPointerException();
-              }
-              ensureCellsIsMutable();
-              cells_.add(value);
-              onChanged();
-            } else {
-              cellsBuilder_.addMessage(value);
-            }
+          public Builder clearPixelFontSize() {
+            bitField0_ = (bitField0_ & ~0x00000002);
+            pixelFontSize_ = 0D;
+            onChanged();
             return this;
           }
+
+          private double letterSpacing_;
           /**
            *
            *
            * 
-           * Cells that make up this row.
+           * Letter spacing in points.
            * 

            *
-           * 
-           * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableCell cells = 1;
-           * 
+           * double letter_spacing = 3;
+           *
+           * @return The letterSpacing.
            */
-          public Builder addCells(
-              int index, com.google.cloud.documentai.v1beta2.Document.Page.Table.TableCell value) {
-            if (cellsBuilder_ == null) {
-              if (value == null) {
-                throw new NullPointerException();
-              }
-              ensureCellsIsMutable();
-              cells_.add(index, value);
-              onChanged();
-            } else {
-              cellsBuilder_.addMessage(index, value);
-            }
-            return this;
+          @java.lang.Override
+          public double getLetterSpacing() {
+            return letterSpacing_;
           }
           /**
            *
            *
            * 
-           * Cells that make up this row.
+           * Letter spacing in points.
            * 

            *
-           * 
-           * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableCell cells = 1;
-           * 
+           * double letter_spacing = 3;
+           *
+           * @param value The letterSpacing to set.
+           * @return This builder for chaining.
            */
-          public Builder addCells(
-              com.google.cloud.documentai.v1beta2.Document.Page.Table.TableCell.Builder
-                  builderForValue) {
-            if (cellsBuilder_ == null) {
-              ensureCellsIsMutable();
-              cells_.add(builderForValue.build());
-              onChanged();
-            } else {
-              cellsBuilder_.addMessage(builderForValue.build());
-            }
+          public Builder setLetterSpacing(double value) {
+
+            letterSpacing_ = value;
+            bitField0_ |= 0x00000004;
+            onChanged();
             return this;
           }
           /**
            *
            *
            * 
-           * Cells that make up this row.
+           * Letter spacing in points.
            * 

            *
-           * 
-           * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableCell cells = 1;
-           * 
+           * double letter_spacing = 3;
+           *
+           * @return This builder for chaining.
            */
-          public Builder addCells(
-              int index,
-              com.google.cloud.documentai.v1beta2.Document.Page.Table.TableCell.Builder
-                  builderForValue) {
-            if (cellsBuilder_ == null) {
-              ensureCellsIsMutable();
-              cells_.add(index, builderForValue.build());
-              onChanged();
-            } else {
-              cellsBuilder_.addMessage(index, builderForValue.build());
-            }
+          public Builder clearLetterSpacing() {
+            bitField0_ = (bitField0_ & ~0x00000004);
+            letterSpacing_ = 0D;
+            onChanged();
             return this;
           }
+
+          private java.lang.Object fontType_ = "";
           /**
            *
            *
            * 
-           * Cells that make up this row.
+           * Name or style of the font.
            * 

            *
-           * 
-           * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableCell cells = 1;
-           * 
+           * string font_type = 4;
+           *
+           * @return The fontType.
            */
-          public Builder addAllCells(
-              java.lang.Iterable<
-                      ? extends com.google.cloud.documentai.v1beta2.Document.Page.Table.TableCell>
-                  values) {
-            if (cellsBuilder_ == null) {
-              ensureCellsIsMutable();
-              com.google.protobuf.AbstractMessageLite.Builder.addAll(values, cells_);
-              onChanged();
+          public java.lang.String getFontType() {
+            java.lang.Object ref = fontType_;
+            if (!(ref instanceof java.lang.String)) {
+              com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+              java.lang.String s = bs.toStringUtf8();
+              fontType_ = s;
+              return s;
             } else {
-              cellsBuilder_.addAllMessages(values);
+              return (java.lang.String) ref;
             }
-            return this;
           }
           /**
            *
            *
            * 
-           * Cells that make up this row.
+           * Name or style of the font.
            * 

            *
-           * 
-           * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableCell cells = 1;
-           * 
+           * string font_type = 4;
+           *
+           * @return The bytes for fontType.
            */
-          public Builder clearCells() {
-            if (cellsBuilder_ == null) {
-              cells_ = java.util.Collections.emptyList();
-              bitField0_ = (bitField0_ & ~0x00000001);
-              onChanged();
+          public com.google.protobuf.ByteString getFontTypeBytes() {
+            java.lang.Object ref = fontType_;
+            if (ref instanceof String) {
+              com.google.protobuf.ByteString b =
+                  com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+              fontType_ = b;
+              return b;
             } else {
-              cellsBuilder_.clear();
+              return (com.google.protobuf.ByteString) ref;
             }
-            return this;
           }
           /**
            *
            *
            * 
-           * Cells that make up this row.
+           * Name or style of the font.
            * 

            *
-           * 
-           * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableCell cells = 1;
-           * 
+           * string font_type = 4;
+           *
+           * @param value The fontType to set.
+           * @return This builder for chaining.
            */
-          public Builder removeCells(int index) {
-            if (cellsBuilder_ == null) {
-              ensureCellsIsMutable();
-              cells_.remove(index);
-              onChanged();
-            } else {
-              cellsBuilder_.remove(index);
+          public Builder setFontType(java.lang.String value) {
+            if (value == null) {
+              throw new NullPointerException();
             }
+            fontType_ = value;
+            bitField0_ |= 0x00000008;
+            onChanged();
             return this;
           }
           /**
            *
            *
            * 
-           * Cells that make up this row.
+           * Name or style of the font.
            * 

            *
-           * 
-           * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableCell cells = 1;
-           * 
+           * string font_type = 4;
+           *
+           * @return This builder for chaining.
            */
-          public com.google.cloud.documentai.v1beta2.Document.Page.Table.TableCell.Builder
-              getCellsBuilder(int index) {
-            return getCellsFieldBuilder().getBuilder(index);
+          public Builder clearFontType() {
+            fontType_ = getDefaultInstance().getFontType();
+            bitField0_ = (bitField0_ & ~0x00000008);
+            onChanged();
+            return this;
           }
           /**
            *
            *
            * 
-           * Cells that make up this row.
+           * Name or style of the font.
            * 

            *
-           * 
-           * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableCell cells = 1;
-           * 
+           * string font_type = 4;
+           *
+           * @param value The bytes for fontType to set.
+           * @return This builder for chaining.
            */
-          public com.google.cloud.documentai.v1beta2.Document.Page.Table.TableCellOrBuilder
-              getCellsOrBuilder(int index) {
-            if (cellsBuilder_ == null) {
-              return cells_.get(index);
-            } else {
-              return cellsBuilder_.getMessageOrBuilder(index);
+          public Builder setFontTypeBytes(com.google.protobuf.ByteString value) {
+            if (value == null) {
+              throw new NullPointerException();
             }
+            checkByteStringIsUtf8(value);
+            fontType_ = value;
+            bitField0_ |= 0x00000008;
+            onChanged();
+            return this;
           }
+
+          private boolean bold_;
           /**
            *
            *
            * 
-           * Cells that make up this row.
+           * Whether the text is bold (equivalent to
+           * [font_weight][google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo.font_weight]
+           * is at least `700`).
            * 

            *
-           * 
-           * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableCell cells = 1;
-           * 
+           * bool bold = 5;
+           *
+           * @return The bold.
            */
-          public java.util.List<
-                  ? extends
-                      com.google.cloud.documentai.v1beta2.Document.Page.Table.TableCellOrBuilder>
-              getCellsOrBuilderList() {
-            if (cellsBuilder_ != null) {
-              return cellsBuilder_.getMessageOrBuilderList();
-            } else {
-              return java.util.Collections.unmodifiableList(cells_);
-            }
+          @java.lang.Override
+          public boolean getBold() {
+            return bold_;
           }
           /**
            *
            *
            * 
-           * Cells that make up this row.
+           * Whether the text is bold (equivalent to
+           * [font_weight][google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo.font_weight]
+           * is at least `700`).
            * 

            *
-           * 
-           * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableCell cells = 1;
-           * 
+           * bool bold = 5;
+           *
+           * @param value The bold to set.
+           * @return This builder for chaining.
            */
-          public com.google.cloud.documentai.v1beta2.Document.Page.Table.TableCell.Builder
-              addCellsBuilder() {
-            return getCellsFieldBuilder()
-                .addBuilder(
-                    com.google.cloud.documentai.v1beta2.Document.Page.Table.TableCell
-                        .getDefaultInstance());
+          public Builder setBold(boolean value) {
+
+            bold_ = value;
+            bitField0_ |= 0x00000010;
+            onChanged();
+            return this;
           }
           /**
            *
            *
            * 
-           * Cells that make up this row.
+           * Whether the text is bold (equivalent to
+           * [font_weight][google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo.font_weight]
+           * is at least `700`).
            * 

            *
-           * 
-           * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableCell cells = 1;
-           * 
+           * bool bold = 5;
+           *
+           * @return This builder for chaining.
            */
-          public com.google.cloud.documentai.v1beta2.Document.Page.Table.TableCell.Builder
-              addCellsBuilder(int index) {
-            return getCellsFieldBuilder()
-                .addBuilder(
-                    index,
-                    com.google.cloud.documentai.v1beta2.Document.Page.Table.TableCell
-                        .getDefaultInstance());
+          public Builder clearBold() {
+            bitField0_ = (bitField0_ & ~0x00000010);
+            bold_ = false;
+            onChanged();
+            return this;
           }
+
+          private boolean italic_;
           /**
            *
            *
            * 
-           * Cells that make up this row.
+           * Whether the text is italic.
            * 

            *
-           * 
-           * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableCell cells = 1;
-           * 
+           * bool italic = 6;
+           *
+           * @return The italic.
            */
-          public java.util.List<
-                  com.google.cloud.documentai.v1beta2.Document.Page.Table.TableCell.Builder>
-              getCellsBuilderList() {
-            return getCellsFieldBuilder().getBuilderList();
+          @java.lang.Override
+          public boolean getItalic() {
+            return italic_;
           }
+          /**
+           *
+           *
+           * 
+           * Whether the text is italic.
+           * 

+           *
+           * bool italic = 6;
+           *
+           * @param value The italic to set.
+           * @return This builder for chaining.
+           */
+          public Builder setItalic(boolean value) {
 
-          private com.google.protobuf.RepeatedFieldBuilderV3<
-                  com.google.cloud.documentai.v1beta2.Document.Page.Table.TableCell,
-                  com.google.cloud.documentai.v1beta2.Document.Page.Table.TableCell.Builder,
-                  com.google.cloud.documentai.v1beta2.Document.Page.Table.TableCellOrBuilder>
-              getCellsFieldBuilder() {
-            if (cellsBuilder_ == null) {
-              cellsBuilder_ =
-                  new com.google.protobuf.RepeatedFieldBuilderV3<
-                      com.google.cloud.documentai.v1beta2.Document.Page.Table.TableCell,
-                      com.google.cloud.documentai.v1beta2.Document.Page.Table.TableCell.Builder,
-                      com.google.cloud.documentai.v1beta2.Document.Page.Table.TableCellOrBuilder>(
-                      cells_, ((bitField0_ & 0x00000001) != 0), getParentForChildren(), isClean());
-              cells_ = null;
-            }
-            return cellsBuilder_;
+            italic_ = value;
+            bitField0_ |= 0x00000020;
+            onChanged();
+            return this;
+          }
+          /**
+           *
+           *
+           * 
+           * Whether the text is italic.
+           * 

+           *
+           * bool italic = 6;
+           *
+           * @return This builder for chaining.
+           */
+          public Builder clearItalic() {
+            bitField0_ = (bitField0_ & ~0x00000020);
+            italic_ = false;
+            onChanged();
+            return this;
           }
 
+          private boolean underlined_;
+          /**
+           *
+           *
+           * 
+           * Whether the text is underlined.
+           * 

+           *
+           * bool underlined = 7;
+           *
+           * @return The underlined.
+           */
           @java.lang.Override
-          public final Builder setUnknownFields(
-              final com.google.protobuf.UnknownFieldSet unknownFields) {
-            return super.setUnknownFields(unknownFields);
+          public boolean getUnderlined() {
+            return underlined_;
+          }
+          /**
+           *
+           *
+           * 
+           * Whether the text is underlined.
+           * 

+           *
+           * bool underlined = 7;
+           *
+           * @param value The underlined to set.
+           * @return This builder for chaining.
+           */
+          public Builder setUnderlined(boolean value) {
+
+            underlined_ = value;
+            bitField0_ |= 0x00000040;
+            onChanged();
+            return this;
+          }
+          /**
+           *
+           *
+           * 
+           * Whether the text is underlined.
+           * 

+           *
+           * bool underlined = 7;
+           *
+           * @return This builder for chaining.
+           */
+          public Builder clearUnderlined() {
+            bitField0_ = (bitField0_ & ~0x00000040);
+            underlined_ = false;
+            onChanged();
+            return this;
           }
 
+          private boolean strikeout_;
+          /**
+           *
+           *
+           * 
+           * Whether the text is strikethrough.
+           * 

+           *
+           * bool strikeout = 8;
+           *
+           * @return The strikeout.
+           */
           @java.lang.Override
-          public final Builder mergeUnknownFields(
-              final com.google.protobuf.UnknownFieldSet unknownFields) {
-            return super.mergeUnknownFields(unknownFields);
+          public boolean getStrikeout() {
+            return strikeout_;
           }
+          /**
+           *
+           *
+           * 
+           * Whether the text is strikethrough.
+           * 

+           *
+           * bool strikeout = 8;
+           *
+           * @param value The strikeout to set.
+           * @return This builder for chaining.
+           */
+          public Builder setStrikeout(boolean value) {
 
-          // @@protoc_insertion_point(builder_scope:google.cloud.documentai.v1beta2.Document.Page.Table.TableRow)
-        }
+            strikeout_ = value;
+            bitField0_ |= 0x00000080;
+            onChanged();
+            return this;
+          }
+          /**
+           *
+           *
+           * 
+           * Whether the text is strikethrough.
+           * 

+           *
+           * bool strikeout = 8;
+           *
+           * @return This builder for chaining.
+           */
+          public Builder clearStrikeout() {
+            bitField0_ = (bitField0_ & ~0x00000080);
+            strikeout_ = false;
+            onChanged();
+            return this;
+          }
 
-        // @@protoc_insertion_point(class_scope:google.cloud.documentai.v1beta2.Document.Page.Table.TableRow)
-        private static final com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow
-            DEFAULT_INSTANCE;
+          private boolean subscript_;
+          /**
+           *
+           *
+           * 
+           * Whether the text is a subscript.
+           * 

+           *
+           * bool subscript = 9;
+           *
+           * @return The subscript.
+           */
+          @java.lang.Override
+          public boolean getSubscript() {
+            return subscript_;
+          }
+          /**
+           *
+           *
+           * 
+           * Whether the text is a subscript.
+           * 

+           *
+           * bool subscript = 9;
+           *
+           * @param value The subscript to set.
+           * @return This builder for chaining.
+           */
+          public Builder setSubscript(boolean value) {
 
-        static {
-          DEFAULT_INSTANCE = new com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow();
-        }
+            subscript_ = value;
+            bitField0_ |= 0x00000100;
+            onChanged();
+            return this;
+          }
+          /**
+           *
+           *
+           * 
+           * Whether the text is a subscript.
+           * 

+           *
+           * bool subscript = 9;
+           *
+           * @return This builder for chaining.
+           */
+          public Builder clearSubscript() {
+            bitField0_ = (bitField0_ & ~0x00000100);
+            subscript_ = false;
+            onChanged();
+            return this;
+          }
 
-        public static com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow
-            getDefaultInstance() {
-          return DEFAULT_INSTANCE;
-        }
+          private boolean superscript_;
+          /**
+           *
+           *
+           * 
+           * Whether the text is a superscript.
+           * 

+           *
+           * bool superscript = 10;
+           *
+           * @return The superscript.
+           */
+          @java.lang.Override
+          public boolean getSuperscript() {
+            return superscript_;
+          }
+          /**
+           *
+           *
+           * 
+           * Whether the text is a superscript.
+           * 

+           *
+           * bool superscript = 10;
+           *
+           * @param value The superscript to set.
+           * @return This builder for chaining.
+           */
+          public Builder setSuperscript(boolean value) {
 
-        private static final com.google.protobuf.Parser PARSER =
-            new com.google.protobuf.AbstractParser() {
-              @java.lang.Override
-              public TableRow parsePartialFrom(
-                  com.google.protobuf.CodedInputStream input,
-                  com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-                  throws com.google.protobuf.InvalidProtocolBufferException {
-                Builder builder = newBuilder();
-                try {
-                  builder.mergeFrom(input, extensionRegistry);
-                } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-                  throw e.setUnfinishedMessage(builder.buildPartial());
-                } catch (com.google.protobuf.UninitializedMessageException e) {
-                  throw e.asInvalidProtocolBufferException()
-                      .setUnfinishedMessage(builder.buildPartial());
-                } catch (java.io.IOException e) {
-                  throw new com.google.protobuf.InvalidProtocolBufferException(e)
-                      .setUnfinishedMessage(builder.buildPartial());
-                }
-                return builder.buildPartial();
-              }
-            };
+            superscript_ = value;
+            bitField0_ |= 0x00000200;
+            onChanged();
+            return this;
+          }
+          /**
+           *
+           *
+           * 
+           * Whether the text is a superscript.
+           * 

+           *
+           * bool superscript = 10;
+           *
+           * @return This builder for chaining.
+           */
+          public Builder clearSuperscript() {
+            bitField0_ = (bitField0_ & ~0x00000200);
+            superscript_ = false;
+            onChanged();
+            return this;
+          }
 
-        public static com.google.protobuf.Parser parser() {
-          return PARSER;
-        }
+          private boolean smallcaps_;
+          /**
+           *
+           *
+           * 
+           * Whether the text is in small caps.
+           * 

+           *
+           * bool smallcaps = 11;
+           *
+           * @return The smallcaps.
+           */
+          @java.lang.Override
+          public boolean getSmallcaps() {
+            return smallcaps_;
+          }
+          /**
+           *
+           *
+           * 
+           * Whether the text is in small caps.
+           * 

+           *
+           * bool smallcaps = 11;
+           *
+           * @param value The smallcaps to set.
+           * @return This builder for chaining.
+           */
+          public Builder setSmallcaps(boolean value) {
 
-        @java.lang.Override
-        public com.google.protobuf.Parser getParserForType() {
-          return PARSER;
-        }
+            smallcaps_ = value;
+            bitField0_ |= 0x00000400;
+            onChanged();
+            return this;
+          }
+          /**
+           *
+           *
+           * 
+           * Whether the text is in small caps.
+           * 

+           *
+           * bool smallcaps = 11;
+           *
+           * @return This builder for chaining.
+           */
+          public Builder clearSmallcaps() {
+            bitField0_ = (bitField0_ & ~0x00000400);
+            smallcaps_ = false;
+            onChanged();
+            return this;
+          }
 
-        @java.lang.Override
-        public com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow
-            getDefaultInstanceForType() {
-          return DEFAULT_INSTANCE;
-        }
-      }
+          private int fontWeight_;
+          /**
+           *
+           *
+           * 
+           * TrueType weight on a scale `100` (thin) to `1000` (ultra-heavy).
+           * Normal is `400`, bold is `700`.
+           * 

+           *
+           * int32 font_weight = 12;
+           *
+           * @return The fontWeight.
+           */
+          @java.lang.Override
+          public int getFontWeight() {
+            return fontWeight_;
+          }
+          /**
+           *
+           *
+           * 
+           * TrueType weight on a scale `100` (thin) to `1000` (ultra-heavy).
+           * Normal is `400`, bold is `700`.
+           * 

+           *
+           * int32 font_weight = 12;
+           *
+           * @param value The fontWeight to set.
+           * @return This builder for chaining.
+           */
+          public Builder setFontWeight(int value) {
 
-      public interface TableCellOrBuilder
-          extends
-          // @@protoc_insertion_point(interface_extends:google.cloud.documentai.v1beta2.Document.Page.Table.TableCell)
-          com.google.protobuf.MessageOrBuilder {
+            fontWeight_ = value;
+            bitField0_ |= 0x00000800;
+            onChanged();
+            return this;
+          }
+          /**
+           *
+           *
+           * 
+           * TrueType weight on a scale `100` (thin) to `1000` (ultra-heavy).
+           * Normal is `400`, bold is `700`.
+           * 

+           *
+           * int32 font_weight = 12;
+           *
+           * @return This builder for chaining.
+           */
+          public Builder clearFontWeight() {
+            bitField0_ = (bitField0_ & ~0x00000800);
+            fontWeight_ = 0;
+            onChanged();
+            return this;
+          }
 
-        /**
-         *
-         *
-         * 
-         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [TableCell][google.cloud.documentai.v1beta2.Document.Page.Table.TableCell].
-         * 

-         *
-         * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
-         *
-         * @return Whether the layout field is set.
-         */
-        boolean hasLayout();
-        /**
-         *
-         *
-         * 
-         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [TableCell][google.cloud.documentai.v1beta2.Document.Page.Table.TableCell].
-         * 

-         *
-         * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
-         *
-         * @return The layout.
-         */
-        com.google.cloud.documentai.v1beta2.Document.Page.Layout getLayout();
-        /**
-         *
-         *
-         * 
-         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [TableCell][google.cloud.documentai.v1beta2.Document.Page.Table.TableCell].
-         * 

-         *
-         * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
-         */
-        com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder getLayoutOrBuilder();
+          private boolean handwritten_;
+          /**
+           *
+           *
+           * 
+           * Whether the text is handwritten.
+           * 

+           *
+           * bool handwritten = 13;
+           *
+           * @return The handwritten.
+           */
+          @java.lang.Override
+          public boolean getHandwritten() {
+            return handwritten_;
+          }
+          /**
+           *
+           *
+           * 
+           * Whether the text is handwritten.
+           * 

+           *
+           * bool handwritten = 13;
+           *
+           * @param value The handwritten to set.
+           * @return This builder for chaining.
+           */
+          public Builder setHandwritten(boolean value) {
 
-        /**
-         *
-         *
-         * 
-         * How many rows this cell spans.
-         * 

-         *
-         * int32 row_span = 2;
-         *
-         * @return The rowSpan.
-         */
-        int getRowSpan();
+            handwritten_ = value;
+            bitField0_ |= 0x00001000;
+            onChanged();
+            return this;
+          }
+          /**
+           *
+           *
+           * 
+           * Whether the text is handwritten.
+           * 

+           *
+           * bool handwritten = 13;
+           *
+           * @return This builder for chaining.
+           */
+          public Builder clearHandwritten() {
+            bitField0_ = (bitField0_ & ~0x00001000);
+            handwritten_ = false;
+            onChanged();
+            return this;
+          }
 
-        /**
-         *
-         *
-         * 
-         * How many columns this cell spans.
-         * 

-         *
-         * int32 col_span = 3;
-         *
-         * @return The colSpan.
-         */
-        int getColSpan();
+          private com.google.type.Color textColor_;
+          private com.google.protobuf.SingleFieldBuilderV3<
+                  com.google.type.Color,
+                  com.google.type.Color.Builder,
+                  com.google.type.ColorOrBuilder>
+              textColorBuilder_;
+          /**
+           *
+           *
+           * 
+           * Color of the text.
+           * 

+           *
+           * .google.type.Color text_color = 14;
+           *
+           * @return Whether the textColor field is set.
+           */
+          public boolean hasTextColor() {
+            return ((bitField0_ & 0x00002000) != 0);
+          }
+          /**
+           *
+           *
+           * 
+           * Color of the text.
+           * 

+           *
+           * .google.type.Color text_color = 14;
+           *
+           * @return The textColor.
+           */
+          public com.google.type.Color getTextColor() {
+            if (textColorBuilder_ == null) {
+              return textColor_ == null ? com.google.type.Color.getDefaultInstance() : textColor_;
+            } else {
+              return textColorBuilder_.getMessage();
+            }
+          }
+          /**
+           *
+           *
+           * 
+           * Color of the text.
+           * 

+           *
+           * .google.type.Color text_color = 14;
+           */
+          public Builder setTextColor(com.google.type.Color value) {
+            if (textColorBuilder_ == null) {
+              if (value == null) {
+                throw new NullPointerException();
+              }
+              textColor_ = value;
+            } else {
+              textColorBuilder_.setMessage(value);
+            }
+            bitField0_ |= 0x00002000;
+            onChanged();
+            return this;
+          }
+          /**
+           *
+           *
+           * 
+           * Color of the text.
+           * 

+           *
+           * .google.type.Color text_color = 14;
+           */
+          public Builder setTextColor(com.google.type.Color.Builder builderForValue) {
+            if (textColorBuilder_ == null) {
+              textColor_ = builderForValue.build();
+            } else {
+              textColorBuilder_.setMessage(builderForValue.build());
+            }
+            bitField0_ |= 0x00002000;
+            onChanged();
+            return this;
+          }
+          /**
+           *
+           *
+           * 
+           * Color of the text.
+           * 

+           *
+           * .google.type.Color text_color = 14;
+           */
+          public Builder mergeTextColor(com.google.type.Color value) {
+            if (textColorBuilder_ == null) {
+              if (((bitField0_ & 0x00002000) != 0)
+                  && textColor_ != null
+                  && textColor_ != com.google.type.Color.getDefaultInstance()) {
+                getTextColorBuilder().mergeFrom(value);
+              } else {
+                textColor_ = value;
+              }
+            } else {
+              textColorBuilder_.mergeFrom(value);
+            }
+            bitField0_ |= 0x00002000;
+            onChanged();
+            return this;
+          }
+          /**
+           *
+           *
+           * 
+           * Color of the text.
+           * 

+           *
+           * .google.type.Color text_color = 14;
+           */
+          public Builder clearTextColor() {
+            bitField0_ = (bitField0_ & ~0x00002000);
+            textColor_ = null;
+            if (textColorBuilder_ != null) {
+              textColorBuilder_.dispose();
+              textColorBuilder_ = null;
+            }
+            onChanged();
+            return this;
+          }
+          /**
+           *
+           *
+           * 
+           * Color of the text.
+           * 

+           *
+           * .google.type.Color text_color = 14;
+           */
+          public com.google.type.Color.Builder getTextColorBuilder() {
+            bitField0_ |= 0x00002000;
+            onChanged();
+            return getTextColorFieldBuilder().getBuilder();
+          }
+          /**
+           *
+           *
+           * 
+           * Color of the text.
+           * 

+           *
+           * .google.type.Color text_color = 14;
+           */
+          public com.google.type.ColorOrBuilder getTextColorOrBuilder() {
+            if (textColorBuilder_ != null) {
+              return textColorBuilder_.getMessageOrBuilder();
+            } else {
+              return textColor_ == null ? com.google.type.Color.getDefaultInstance() : textColor_;
+            }
+          }
+          /**
+           *
+           *
+           * 
+           * Color of the text.
+           * 

+           *
+           * .google.type.Color text_color = 14;
+           */
+          private com.google.protobuf.SingleFieldBuilderV3<
+                  com.google.type.Color,
+                  com.google.type.Color.Builder,
+                  com.google.type.ColorOrBuilder>
+              getTextColorFieldBuilder() {
+            if (textColorBuilder_ == null) {
+              textColorBuilder_ =
+                  new com.google.protobuf.SingleFieldBuilderV3<
+                      com.google.type.Color,
+                      com.google.type.Color.Builder,
+                      com.google.type.ColorOrBuilder>(
+                      getTextColor(), getParentForChildren(), isClean());
+              textColor_ = null;
+            }
+            return textColorBuilder_;
+          }
 
-        /**
-         *
-         *
-         * 
-         * A list of detected languages together with confidence.
-         * 

-         *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
-         * 
-         */
-        java.util.List
-            getDetectedLanguagesList();
-        /**
-         *
-         *
-         * 
-         * A list of detected languages together with confidence.
-         * 

-         *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
-         * 
-         */
-        com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage getDetectedLanguages(
-            int index);
-        /**
-         *
-         *
-         * 
-         * A list of detected languages together with confidence.
-         * 

-         *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
-         * 
-         */
-        int getDetectedLanguagesCount();
-        /**
-         *
-         *
-         * 
-         * A list of detected languages together with confidence.
-         * 

-         *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
-         * 
-         */
-        java.util.List<
-                ? extends
-                    com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>
-            getDetectedLanguagesOrBuilderList();
-        /**
-         *
-         *
-         * 
-         * A list of detected languages together with confidence.
-         * 

-         *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
-         * 
-         */
-        com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder
-            getDetectedLanguagesOrBuilder(int index);
-      }
-      /**
-       *
-       *
-       * 
-       * A cell representation inside the table.
-       * 

-       *
-       * Protobuf type {@code google.cloud.documentai.v1beta2.Document.Page.Table.TableCell}
-       */
-      public static final class TableCell extends com.google.protobuf.GeneratedMessageV3
-          implements
-          // @@protoc_insertion_point(message_implements:google.cloud.documentai.v1beta2.Document.Page.Table.TableCell)
-          TableCellOrBuilder {
-        private static final long serialVersionUID = 0L;
-        // Use TableCell.newBuilder() to construct.
-        private TableCell(com.google.protobuf.GeneratedMessageV3.Builder builder) {
-          super(builder);
-        }
+          private com.google.type.Color backgroundColor_;
+          private com.google.protobuf.SingleFieldBuilderV3<
+                  com.google.type.Color,
+                  com.google.type.Color.Builder,
+                  com.google.type.ColorOrBuilder>
+              backgroundColorBuilder_;
+          /**
+           *
+           *
+           * 
+           * Color of the background.
+           * 

+           *
+           * .google.type.Color background_color = 15;
+           *
+           * @return Whether the backgroundColor field is set.
+           */
+          public boolean hasBackgroundColor() {
+            return ((bitField0_ & 0x00004000) != 0);
+          }
+          /**
+           *
+           *
+           * 
+           * Color of the background.
+           * 

+           *
+           * .google.type.Color background_color = 15;
+           *
+           * @return The backgroundColor.
+           */
+          public com.google.type.Color getBackgroundColor() {
+            if (backgroundColorBuilder_ == null) {
+              return backgroundColor_ == null
+                  ? com.google.type.Color.getDefaultInstance()
+                  : backgroundColor_;
+            } else {
+              return backgroundColorBuilder_.getMessage();
+            }
+          }
+          /**
+           *
+           *
+           * 
+           * Color of the background.
+           * 

+           *
+           * .google.type.Color background_color = 15;
+           */
+          public Builder setBackgroundColor(com.google.type.Color value) {
+            if (backgroundColorBuilder_ == null) {
+              if (value == null) {
+                throw new NullPointerException();
+              }
+              backgroundColor_ = value;
+            } else {
+              backgroundColorBuilder_.setMessage(value);
+            }
+            bitField0_ |= 0x00004000;
+            onChanged();
+            return this;
+          }
+          /**
+           *
+           *
+           * 
+           * Color of the background.
+           * 

+           *
+           * .google.type.Color background_color = 15;
+           */
+          public Builder setBackgroundColor(com.google.type.Color.Builder builderForValue) {
+            if (backgroundColorBuilder_ == null) {
+              backgroundColor_ = builderForValue.build();
+            } else {
+              backgroundColorBuilder_.setMessage(builderForValue.build());
+            }
+            bitField0_ |= 0x00004000;
+            onChanged();
+            return this;
+          }
+          /**
+           *
+           *
+           * 
+           * Color of the background.
+           * 

+           *
+           * .google.type.Color background_color = 15;
+           */
+          public Builder mergeBackgroundColor(com.google.type.Color value) {
+            if (backgroundColorBuilder_ == null) {
+              if (((bitField0_ & 0x00004000) != 0)
+                  && backgroundColor_ != null
+                  && backgroundColor_ != com.google.type.Color.getDefaultInstance()) {
+                getBackgroundColorBuilder().mergeFrom(value);
+              } else {
+                backgroundColor_ = value;
+              }
+            } else {
+              backgroundColorBuilder_.mergeFrom(value);
+            }
+            bitField0_ |= 0x00004000;
+            onChanged();
+            return this;
+          }
+          /**
+           *
+           *
+           * 
+           * Color of the background.
+           * 

+           *
+           * .google.type.Color background_color = 15;
+           */
+          public Builder clearBackgroundColor() {
+            bitField0_ = (bitField0_ & ~0x00004000);
+            backgroundColor_ = null;
+            if (backgroundColorBuilder_ != null) {
+              backgroundColorBuilder_.dispose();
+              backgroundColorBuilder_ = null;
+            }
+            onChanged();
+            return this;
+          }
+          /**
+           *
+           *
+           * 
+           * Color of the background.
+           * 

+           *
+           * .google.type.Color background_color = 15;
+           */
+          public com.google.type.Color.Builder getBackgroundColorBuilder() {
+            bitField0_ |= 0x00004000;
+            onChanged();
+            return getBackgroundColorFieldBuilder().getBuilder();
+          }
+          /**
+           *
+           *
+           * 
+           * Color of the background.
+           * 

+           *
+           * .google.type.Color background_color = 15;
+           */
+          public com.google.type.ColorOrBuilder getBackgroundColorOrBuilder() {
+            if (backgroundColorBuilder_ != null) {
+              return backgroundColorBuilder_.getMessageOrBuilder();
+            } else {
+              return backgroundColor_ == null
+                  ? com.google.type.Color.getDefaultInstance()
+                  : backgroundColor_;
+            }
+          }
+          /**
+           *
+           *
+           * 
+           * Color of the background.
+           * 

+           *
+           * .google.type.Color background_color = 15;
+           */
+          private com.google.protobuf.SingleFieldBuilderV3<
+                  com.google.type.Color,
+                  com.google.type.Color.Builder,
+                  com.google.type.ColorOrBuilder>
+              getBackgroundColorFieldBuilder() {
+            if (backgroundColorBuilder_ == null) {
+              backgroundColorBuilder_ =
+                  new com.google.protobuf.SingleFieldBuilderV3<
+                      com.google.type.Color,
+                      com.google.type.Color.Builder,
+                      com.google.type.ColorOrBuilder>(
+                      getBackgroundColor(), getParentForChildren(), isClean());
+              backgroundColor_ = null;
+            }
+            return backgroundColorBuilder_;
+          }
 
-        private TableCell() {
-          detectedLanguages_ = java.util.Collections.emptyList();
-        }
+          @java.lang.Override
+          public final Builder setUnknownFields(
+              final com.google.protobuf.UnknownFieldSet unknownFields) {
+            return super.setUnknownFields(unknownFields);
+          }
 
-        @java.lang.Override
-        @SuppressWarnings({"unused"})
-        protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
-          return new TableCell();
+          @java.lang.Override
+          public final Builder mergeUnknownFields(
+              final com.google.protobuf.UnknownFieldSet unknownFields) {
+            return super.mergeUnknownFields(unknownFields);
+          }
+
+          // @@protoc_insertion_point(builder_scope:google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo)
         }
 
-        public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
-          return com.google.cloud.documentai.v1beta2.DocumentProto
-              .internal_static_google_cloud_documentai_v1beta2_Document_Page_Table_TableCell_descriptor;
+        // @@protoc_insertion_point(class_scope:google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo)
+        private static final com.google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo
+            DEFAULT_INSTANCE;
+
+        static {
+          DEFAULT_INSTANCE =
+              new com.google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo();
         }
 
-        @java.lang.Override
-        protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
-            internalGetFieldAccessorTable() {
-          return com.google.cloud.documentai.v1beta2.DocumentProto
-              .internal_static_google_cloud_documentai_v1beta2_Document_Page_Table_TableCell_fieldAccessorTable
-              .ensureFieldAccessorsInitialized(
-                  com.google.cloud.documentai.v1beta2.Document.Page.Table.TableCell.class,
-                  com.google.cloud.documentai.v1beta2.Document.Page.Table.TableCell.Builder.class);
+        public static com.google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo
+            getDefaultInstance() {
+          return DEFAULT_INSTANCE;
         }
 
-        public static final int LAYOUT_FIELD_NUMBER = 1;
-        private com.google.cloud.documentai.v1beta2.Document.Page.Layout layout_;
-        /**
-         *
-         *
-         * 
-         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [TableCell][google.cloud.documentai.v1beta2.Document.Page.Table.TableCell].
-         * 

-         *
-         * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
-         *
-         * @return Whether the layout field is set.
-         */
-        @java.lang.Override
-        public boolean hasLayout() {
-          return layout_ != null;
+        private static final com.google.protobuf.Parser PARSER =
+            new com.google.protobuf.AbstractParser() {
+              @java.lang.Override
+              public StyleInfo parsePartialFrom(
+                  com.google.protobuf.CodedInputStream input,
+                  com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+                  throws com.google.protobuf.InvalidProtocolBufferException {
+                Builder builder = newBuilder();
+                try {
+                  builder.mergeFrom(input, extensionRegistry);
+                } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+                  throw e.setUnfinishedMessage(builder.buildPartial());
+                } catch (com.google.protobuf.UninitializedMessageException e) {
+                  throw e.asInvalidProtocolBufferException()
+                      .setUnfinishedMessage(builder.buildPartial());
+                } catch (java.io.IOException e) {
+                  throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                      .setUnfinishedMessage(builder.buildPartial());
+                }
+                return builder.buildPartial();
+              }
+            };
+
+        public static com.google.protobuf.Parser parser() {
+          return PARSER;
         }
-        /**
-         *
-         *
-         * 
-         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [TableCell][google.cloud.documentai.v1beta2.Document.Page.Table.TableCell].
-         * 

-         *
-         * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
-         *
-         * @return The layout.
-         */
+
         @java.lang.Override
-        public com.google.cloud.documentai.v1beta2.Document.Page.Layout getLayout() {
-          return layout_ == null
-              ? com.google.cloud.documentai.v1beta2.Document.Page.Layout.getDefaultInstance()
-              : layout_;
+        public com.google.protobuf.Parser getParserForType() {
+          return PARSER;
         }
-        /**
-         *
-         *
-         * 
-         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [TableCell][google.cloud.documentai.v1beta2.Document.Page.Table.TableCell].
-         * 

-         *
-         * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
-         */
+
         @java.lang.Override
-        public com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder
-            getLayoutOrBuilder() {
-          return layout_ == null
-              ? com.google.cloud.documentai.v1beta2.Document.Page.Layout.getDefaultInstance()
-              : layout_;
+        public com.google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo
+            getDefaultInstanceForType() {
+          return DEFAULT_INSTANCE;
         }
+      }
 
-        public static final int ROW_SPAN_FIELD_NUMBER = 2;
-        private int rowSpan_ = 0;
-        /**
-         *
-         *
-         * 
-         * How many rows this cell spans.
-         * 

-         *
-         * int32 row_span = 2;
-         *
-         * @return The rowSpan.
-         */
-        @java.lang.Override
-        public int getRowSpan() {
-          return rowSpan_;
-        }
+      public static final int LAYOUT_FIELD_NUMBER = 1;
+      private com.google.cloud.documentai.v1beta2.Document.Page.Layout layout_;
+      /**
+       *
+       *
+       * 
+       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+       * [Token][google.cloud.documentai.v1beta2.Document.Page.Token].
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+       *
+       * @return Whether the layout field is set.
+       */
+      @java.lang.Override
+      public boolean hasLayout() {
+        return layout_ != null;
+      }
+      /**
+       *
+       *
+       * 
+       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+       * [Token][google.cloud.documentai.v1beta2.Document.Page.Token].
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+       *
+       * @return The layout.
+       */
+      @java.lang.Override
+      public com.google.cloud.documentai.v1beta2.Document.Page.Layout getLayout() {
+        return layout_ == null
+            ? com.google.cloud.documentai.v1beta2.Document.Page.Layout.getDefaultInstance()
+            : layout_;
+      }
+      /**
+       *
+       *
+       * 
+       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+       * [Token][google.cloud.documentai.v1beta2.Document.Page.Token].
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+       */
+      @java.lang.Override
+      public com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder
+          getLayoutOrBuilder() {
+        return layout_ == null
+            ? com.google.cloud.documentai.v1beta2.Document.Page.Layout.getDefaultInstance()
+            : layout_;
+      }
 
-        public static final int COL_SPAN_FIELD_NUMBER = 3;
-        private int colSpan_ = 0;
-        /**
-         *
-         *
-         * 
-         * How many columns this cell spans.
-         * 

-         *
-         * int32 col_span = 3;
-         *
-         * @return The colSpan.
-         */
-        @java.lang.Override
-        public int getColSpan() {
-          return colSpan_;
-        }
+      public static final int DETECTED_BREAK_FIELD_NUMBER = 2;
+      private com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak detectedBreak_;
+      /**
+       *
+       *
+       * 
+       * Detected break at the end of a
+       * [Token][google.cloud.documentai.v1beta2.Document.Page.Token].
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak detected_break = 2;
+       * 
+       *
+       * @return Whether the detectedBreak field is set.
+       */
+      @java.lang.Override
+      public boolean hasDetectedBreak() {
+        return detectedBreak_ != null;
+      }
+      /**
+       *
+       *
+       * 
+       * Detected break at the end of a
+       * [Token][google.cloud.documentai.v1beta2.Document.Page.Token].
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak detected_break = 2;
+       * 
+       *
+       * @return The detectedBreak.
+       */
+      @java.lang.Override
+      public com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak
+          getDetectedBreak() {
+        return detectedBreak_ == null
+            ? com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak
+                .getDefaultInstance()
+            : detectedBreak_;
+      }
+      /**
+       *
+       *
+       * 
+       * Detected break at the end of a
+       * [Token][google.cloud.documentai.v1beta2.Document.Page.Token].
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak detected_break = 2;
+       * 
+       */
+      @java.lang.Override
+      public com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreakOrBuilder
+          getDetectedBreakOrBuilder() {
+        return detectedBreak_ == null
+            ? com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak
+                .getDefaultInstance()
+            : detectedBreak_;
+      }
 
-        public static final int DETECTED_LANGUAGES_FIELD_NUMBER = 4;
+      public static final int DETECTED_LANGUAGES_FIELD_NUMBER = 3;
 
-        @SuppressWarnings("serial")
-        private java.util.List
-            detectedLanguages_;
-        /**
-         *
-         *
-         * 
-         * A list of detected languages together with confidence.
-         * 

-         *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
-         * 
-         */
-        @java.lang.Override
-        public java.util.List
-            getDetectedLanguagesList() {
-          return detectedLanguages_;
+      @SuppressWarnings("serial")
+      private java.util.List
+          detectedLanguages_;
+      /**
+       *
+       *
+       * 
+       * A list of detected languages together with confidence.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
+       * 
+       */
+      @java.lang.Override
+      public java.util.List
+          getDetectedLanguagesList() {
+        return detectedLanguages_;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of detected languages together with confidence.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
+       * 
+       */
+      @java.lang.Override
+      public java.util.List<
+              ? extends com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>
+          getDetectedLanguagesOrBuilderList() {
+        return detectedLanguages_;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of detected languages together with confidence.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
+       * 
+       */
+      @java.lang.Override
+      public int getDetectedLanguagesCount() {
+        return detectedLanguages_.size();
+      }
+      /**
+       *
+       *
+       * 
+       * A list of detected languages together with confidence.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
+       * 
+       */
+      @java.lang.Override
+      public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage
+          getDetectedLanguages(int index) {
+        return detectedLanguages_.get(index);
+      }
+      /**
+       *
+       *
+       * 
+       * A list of detected languages together with confidence.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
+       * 
+       */
+      @java.lang.Override
+      public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder
+          getDetectedLanguagesOrBuilder(int index) {
+        return detectedLanguages_.get(index);
+      }
+
+      public static final int PROVENANCE_FIELD_NUMBER = 4;
+      private com.google.cloud.documentai.v1beta2.Document.Provenance provenance_;
+      /**
+       *
+       *
+       * 
+       * The history of this annotation.
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 4 [deprecated = true];
+       * 
+       *
+       * @deprecated google.cloud.documentai.v1beta2.Document.Page.Token.provenance is deprecated.
+       *     See google/cloud/documentai/v1beta2/document.proto;l=352
+       * @return Whether the provenance field is set.
+       */
+      @java.lang.Override
+      @java.lang.Deprecated
+      public boolean hasProvenance() {
+        return provenance_ != null;
+      }
+      /**
+       *
+       *
+       * 
+       * The history of this annotation.
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 4 [deprecated = true];
+       * 
+       *
+       * @deprecated google.cloud.documentai.v1beta2.Document.Page.Token.provenance is deprecated.
+       *     See google/cloud/documentai/v1beta2/document.proto;l=352
+       * @return The provenance.
+       */
+      @java.lang.Override
+      @java.lang.Deprecated
+      public com.google.cloud.documentai.v1beta2.Document.Provenance getProvenance() {
+        return provenance_ == null
+            ? com.google.cloud.documentai.v1beta2.Document.Provenance.getDefaultInstance()
+            : provenance_;
+      }
+      /**
+       *
+       *
+       * 
+       * The history of this annotation.
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 4 [deprecated = true];
+       * 
+       */
+      @java.lang.Override
+      @java.lang.Deprecated
+      public com.google.cloud.documentai.v1beta2.Document.ProvenanceOrBuilder
+          getProvenanceOrBuilder() {
+        return provenance_ == null
+            ? com.google.cloud.documentai.v1beta2.Document.Provenance.getDefaultInstance()
+            : provenance_;
+      }
+
+      public static final int STYLE_INFO_FIELD_NUMBER = 5;
+      private com.google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo styleInfo_;
+      /**
+       *
+       *
+       * 
+       * Text style attributes.
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo style_info = 5;
+       *
+       * @return Whether the styleInfo field is set.
+       */
+      @java.lang.Override
+      public boolean hasStyleInfo() {
+        return styleInfo_ != null;
+      }
+      /**
+       *
+       *
+       * 
+       * Text style attributes.
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo style_info = 5;
+       *
+       * @return The styleInfo.
+       */
+      @java.lang.Override
+      public com.google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo getStyleInfo() {
+        return styleInfo_ == null
+            ? com.google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo.getDefaultInstance()
+            : styleInfo_;
+      }
+      /**
+       *
+       *
+       * 
+       * Text style attributes.
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo style_info = 5;
+       */
+      @java.lang.Override
+      public com.google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfoOrBuilder
+          getStyleInfoOrBuilder() {
+        return styleInfo_ == null
+            ? com.google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo.getDefaultInstance()
+            : styleInfo_;
+      }
+
+      private byte memoizedIsInitialized = -1;
+
+      @java.lang.Override
+      public final boolean isInitialized() {
+        byte isInitialized = memoizedIsInitialized;
+        if (isInitialized == 1) return true;
+        if (isInitialized == 0) return false;
+
+        memoizedIsInitialized = 1;
+        return true;
+      }
+
+      @java.lang.Override
+      public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+        if (layout_ != null) {
+          output.writeMessage(1, getLayout());
         }
-        /**
-         *
-         *
-         * 
-         * A list of detected languages together with confidence.
-         * 

-         *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
-         * 
-         */
-        @java.lang.Override
-        public java.util.List<
-                ? extends
-                    com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>
-            getDetectedLanguagesOrBuilderList() {
-          return detectedLanguages_;
+        if (detectedBreak_ != null) {
+          output.writeMessage(2, getDetectedBreak());
         }
-        /**
-         *
-         *
-         * 
-         * A list of detected languages together with confidence.
-         * 

-         *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
-         * 
-         */
-        @java.lang.Override
-        public int getDetectedLanguagesCount() {
-          return detectedLanguages_.size();
+        for (int i = 0; i < detectedLanguages_.size(); i++) {
+          output.writeMessage(3, detectedLanguages_.get(i));
         }
-        /**
-         *
-         *
-         * 
-         * A list of detected languages together with confidence.
-         * 

-         *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
-         * 
-         */
-        @java.lang.Override
-        public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage
-            getDetectedLanguages(int index) {
-          return detectedLanguages_.get(index);
+        if (provenance_ != null) {
+          output.writeMessage(4, getProvenance());
         }
-        /**
-         *
-         *
-         * 
-         * A list of detected languages together with confidence.
-         * 

-         *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
-         * 
-         */
-        @java.lang.Override
-        public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder
-            getDetectedLanguagesOrBuilder(int index) {
-          return detectedLanguages_.get(index);
+        if (styleInfo_ != null) {
+          output.writeMessage(5, getStyleInfo());
         }
+        getUnknownFields().writeTo(output);
+      }
 
-        private byte memoizedIsInitialized = -1;
-
-        @java.lang.Override
-        public final boolean isInitialized() {
-          byte isInitialized = memoizedIsInitialized;
-          if (isInitialized == 1) return true;
-          if (isInitialized == 0) return false;
+      @java.lang.Override
+      public int getSerializedSize() {
+        int size = memoizedSize;
+        if (size != -1) return size;
 
-          memoizedIsInitialized = 1;
-          return true;
+        size = 0;
+        if (layout_ != null) {
+          size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, getLayout());
         }
-
-        @java.lang.Override
-        public void writeTo(com.google.protobuf.CodedOutputStream output)
-            throws java.io.IOException {
-          if (layout_ != null) {
-            output.writeMessage(1, getLayout());
-          }
-          if (rowSpan_ != 0) {
-            output.writeInt32(2, rowSpan_);
-          }
-          if (colSpan_ != 0) {
-            output.writeInt32(3, colSpan_);
-          }
-          for (int i = 0; i < detectedLanguages_.size(); i++) {
-            output.writeMessage(4, detectedLanguages_.get(i));
-          }
-          getUnknownFields().writeTo(output);
+        if (detectedBreak_ != null) {
+          size += com.google.protobuf.CodedOutputStream.computeMessageSize(2, getDetectedBreak());
         }
-
-        @java.lang.Override
-        public int getSerializedSize() {
-          int size = memoizedSize;
-          if (size != -1) return size;
-
-          size = 0;
-          if (layout_ != null) {
-            size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, getLayout());
-          }
-          if (rowSpan_ != 0) {
-            size += com.google.protobuf.CodedOutputStream.computeInt32Size(2, rowSpan_);
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-          if (colSpan_ != 0) {
-            size += com.google.protobuf.CodedOutputStream.computeInt32Size(3, colSpan_);
-          }
-          for (int i = 0; i < detectedLanguages_.size(); i++) {
-            size +=
-                com.google.protobuf.CodedOutputStream.computeMessageSize(
-                    4, detectedLanguages_.get(i));
-          }
-          size += getUnknownFields().getSerializedSize();
-          memoizedSize = size;
-          return size;
+        for (int i = 0; i < detectedLanguages_.size(); i++) {
+          size +=
+              com.google.protobuf.CodedOutputStream.computeMessageSize(
+                  3, detectedLanguages_.get(i));
         }
+        if (provenance_ != null) {
+          size += com.google.protobuf.CodedOutputStream.computeMessageSize(4, getProvenance());
+        }
+        if (styleInfo_ != null) {
+          size += com.google.protobuf.CodedOutputStream.computeMessageSize(5, getStyleInfo());
+        }
+        size += getUnknownFields().getSerializedSize();
+        memoizedSize = size;
+        return size;
+      }
 
-        @java.lang.Override
-        public boolean equals(final java.lang.Object obj) {
-          if (obj == this) {
-            return true;
-          }
-          if (!(obj instanceof com.google.cloud.documentai.v1beta2.Document.Page.Table.TableCell)) {
-            return super.equals(obj);
-          }
-          com.google.cloud.documentai.v1beta2.Document.Page.Table.TableCell other =
-              (com.google.cloud.documentai.v1beta2.Document.Page.Table.TableCell) obj;
-
-          if (hasLayout() != other.hasLayout()) return false;
-          if (hasLayout()) {
-            if (!getLayout().equals(other.getLayout())) return false;
-          }
-          if (getRowSpan() != other.getRowSpan()) return false;
-          if (getColSpan() != other.getColSpan()) return false;
-          if (!getDetectedLanguagesList().equals(other.getDetectedLanguagesList())) return false;
-          if (!getUnknownFields().equals(other.getUnknownFields())) return false;
+      @java.lang.Override
+      public boolean equals(final java.lang.Object obj) {
+        if (obj == this) {
           return true;
         }
-
-        @java.lang.Override
-        public int hashCode() {
-          if (memoizedHashCode != 0) {
-            return memoizedHashCode;
-          }
-          int hash = 41;
-          hash = (19 * hash) + getDescriptor().hashCode();
-          if (hasLayout()) {
-            hash = (37 * hash) + LAYOUT_FIELD_NUMBER;
-            hash = (53 * hash) + getLayout().hashCode();
-          }
-          hash = (37 * hash) + ROW_SPAN_FIELD_NUMBER;
-          hash = (53 * hash) + getRowSpan();
-          hash = (37 * hash) + COL_SPAN_FIELD_NUMBER;
-          hash = (53 * hash) + getColSpan();
-          if (getDetectedLanguagesCount() > 0) {
-            hash = (37 * hash) + DETECTED_LANGUAGES_FIELD_NUMBER;
-            hash = (53 * hash) + getDetectedLanguagesList().hashCode();
-          }
-          hash = (29 * hash) + getUnknownFields().hashCode();
-          memoizedHashCode = hash;
-          return hash;
+        if (!(obj instanceof com.google.cloud.documentai.v1beta2.Document.Page.Token)) {
+          return super.equals(obj);
         }
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-                  bitField0_ = (bitField0_ & ~0x00000008);
-                  detectedLanguagesBuilder_ =
-                      com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders
-                          ? getDetectedLanguagesFieldBuilder()
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-                } else {
-                  detectedLanguagesBuilder_.addAllMessages(other.detectedLanguages_);
-                }
-              }
-            }
-            this.mergeUnknownFields(other.getUnknownFields());
-            onChanged();
-            return this;
-          }
+        @java.lang.Override
+        public final boolean isInitialized() {
+          return true;
+        }
 
-          @java.lang.Override
-          public final boolean isInitialized() {
-            return true;
+        @java.lang.Override
+        public Builder mergeFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws java.io.IOException {
+          if (extensionRegistry == null) {
+            throw new java.lang.NullPointerException();
           }
-
-          @java.lang.Override
-          public Builder mergeFrom(
-              com.google.protobuf.CodedInputStream input,
-              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-              throws java.io.IOException {
-            if (extensionRegistry == null) {
-              throw new java.lang.NullPointerException();
-            }
-            try {
-              boolean done = false;
-              while (!done) {
-                int tag = input.readTag();
-                switch (tag) {
-                  case 0:
-                    done = true;
+          try {
+            boolean done = false;
+            while (!done) {
+              int tag = input.readTag();
+              switch (tag) {
+                case 0:
+                  done = true;
+                  break;
+                case 10:
+                  {
+                    input.readMessage(getLayoutFieldBuilder().getBuilder(), extensionRegistry);
+                    bitField0_ |= 0x00000001;
                     break;
-                  case 10:
-                    {
-                      input.readMessage(getLayoutFieldBuilder().getBuilder(), extensionRegistry);
-                      bitField0_ |= 0x00000001;
-                      break;
-                    } // case 10
-                  case 16:
-                    {
-                      rowSpan_ = input.readInt32();
-                      bitField0_ |= 0x00000002;
-                      break;
-                    } // case 16
-                  case 24:
-                    {
-                      colSpan_ = input.readInt32();
-                      bitField0_ |= 0x00000004;
-                      break;
-                    } // case 24
-                  case 34:
-                    {
-                      com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage m =
-                          input.readMessage(
-                              com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage
-                                  .parser(),
-                              extensionRegistry);
-                      if (detectedLanguagesBuilder_ == null) {
-                        ensureDetectedLanguagesIsMutable();
-                        detectedLanguages_.add(m);
-                      } else {
-                        detectedLanguagesBuilder_.addMessage(m);
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-                      break;
-                    } // case 34
-                  default:
-                    {
-                      if (!super.parseUnknownField(input, extensionRegistry, tag)) {
-                        done = true; // was an endgroup tag
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-              } // while (!done)
-            } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-              throw e.unwrapIOException();
-            } finally {
-              onChanged();
-            } // finally
-            return this;
-          }
+                  } // case 10
+                case 18:
+                  {
+                    input.readMessage(
+                        getDetectedBreakFieldBuilder().getBuilder(), extensionRegistry);
+                    bitField0_ |= 0x00000002;
+                    break;
+                  } // case 18
+                case 26:
+                  {
+                    com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage m =
+                        input.readMessage(
+                            com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage
+                                .parser(),
+                            extensionRegistry);
+                    if (detectedLanguagesBuilder_ == null) {
+                      ensureDetectedLanguagesIsMutable();
+                      detectedLanguages_.add(m);
+                    } else {
+                      detectedLanguagesBuilder_.addMessage(m);
+                    }
+                    break;
+                  } // case 26
+                case 34:
+                  {
+                    input.readMessage(getProvenanceFieldBuilder().getBuilder(), extensionRegistry);
+                    bitField0_ |= 0x00000008;
+                    break;
+                  } // case 34
+                case 42:
+                  {
+                    input.readMessage(getStyleInfoFieldBuilder().getBuilder(), extensionRegistry);
+                    bitField0_ |= 0x00000010;
+                    break;
+                  } // case 42
+                default:
+                  {
+                    if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                      done = true; // was an endgroup tag
+                    }
+                    break;
+                  } // default:
+              } // switch (tag)
+            } // while (!done)
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.unwrapIOException();
+          } finally {
+            onChanged();
+          } // finally
+          return this;
+        }
 
-          private int bitField0_;
+        private int bitField0_;
 
-          private com.google.cloud.documentai.v1beta2.Document.Page.Layout layout_;
-          private com.google.protobuf.SingleFieldBuilderV3<
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-           *
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-           * 
-           * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [TableCell][google.cloud.documentai.v1beta2.Document.Page.Table.TableCell].
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-           *
-           * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
-           *
-           * @return The layout.
-           */
-          public com.google.cloud.documentai.v1beta2.Document.Page.Layout getLayout() {
-            if (layoutBuilder_ == null) {
-              return layout_ == null
-                  ? com.google.cloud.documentai.v1beta2.Document.Page.Layout.getDefaultInstance()
-                  : layout_;
-            } else {
-              return layoutBuilder_.getMessage();
-            }
+        private com.google.cloud.documentai.v1beta2.Document.Page.Layout layout_;
+        private com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.documentai.v1beta2.Document.Page.Layout,
+                com.google.cloud.documentai.v1beta2.Document.Page.Layout.Builder,
+                com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder>
+            layoutBuilder_;
+        /**
+         *
+         *
+         * 
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+         * [Token][google.cloud.documentai.v1beta2.Document.Page.Token].
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+         *
+         * @return Whether the layout field is set.
+         */
+        public boolean hasLayout() {
+          return ((bitField0_ & 0x00000001) != 0);
+        }
+        /**
+         *
+         *
+         * 
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+         * [Token][google.cloud.documentai.v1beta2.Document.Page.Token].
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+         *
+         * @return The layout.
+         */
+        public com.google.cloud.documentai.v1beta2.Document.Page.Layout getLayout() {
+          if (layoutBuilder_ == null) {
+            return layout_ == null
+                ? com.google.cloud.documentai.v1beta2.Document.Page.Layout.getDefaultInstance()
+                : layout_;
+          } else {
+            return layoutBuilder_.getMessage();
           }
-          /**
-           *
-           *
-           * 
-           * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [TableCell][google.cloud.documentai.v1beta2.Document.Page.Table.TableCell].
-           * 

-           *
-           * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
-           */
-          public Builder setLayout(com.google.cloud.documentai.v1beta2.Document.Page.Layout value) {
-            if (layoutBuilder_ == null) {
-              if (value == null) {
-                throw new NullPointerException();
-              }
-              layout_ = value;
-            } else {
-              layoutBuilder_.setMessage(value);
+        }
+        /**
+         *
+         *
+         * 
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+         * [Token][google.cloud.documentai.v1beta2.Document.Page.Token].
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+         */
+        public Builder setLayout(com.google.cloud.documentai.v1beta2.Document.Page.Layout value) {
+          if (layoutBuilder_ == null) {
+            if (value == null) {
+              throw new NullPointerException();
             }
-            bitField0_ |= 0x00000001;
-            onChanged();
-            return this;
+            layout_ = value;
+          } else {
+            layoutBuilder_.setMessage(value);
           }
-          /**
-           *
-           *
-           * 
-           * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [TableCell][google.cloud.documentai.v1beta2.Document.Page.Table.TableCell].
-           * 

-           *
-           * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
-           */
-          public Builder setLayout(
-              com.google.cloud.documentai.v1beta2.Document.Page.Layout.Builder builderForValue) {
-            if (layoutBuilder_ == null) {
-              layout_ = builderForValue.build();
-            } else {
-              layoutBuilder_.setMessage(builderForValue.build());
-            }
-            bitField0_ |= 0x00000001;
-            onChanged();
-            return this;
+          bitField0_ |= 0x00000001;
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+         * [Token][google.cloud.documentai.v1beta2.Document.Page.Token].
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+         */
+        public Builder setLayout(
+            com.google.cloud.documentai.v1beta2.Document.Page.Layout.Builder builderForValue) {
+          if (layoutBuilder_ == null) {
+            layout_ = builderForValue.build();
+          } else {
+            layoutBuilder_.setMessage(builderForValue.build());
           }
-          /**
-           *
-           *
-           * 
-           * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [TableCell][google.cloud.documentai.v1beta2.Document.Page.Table.TableCell].
-           * 

-           *
-           * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
-           */
-          public Builder mergeLayout(
-              com.google.cloud.documentai.v1beta2.Document.Page.Layout value) {
-            if (layoutBuilder_ == null) {
-              if (((bitField0_ & 0x00000001) != 0)
-                  && layout_ != null
-                  && layout_
-                      != com.google.cloud.documentai.v1beta2.Document.Page.Layout
-                          .getDefaultInstance()) {
-                getLayoutBuilder().mergeFrom(value);
-              } else {
-                layout_ = value;
-              }
+          bitField0_ |= 0x00000001;
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+         * [Token][google.cloud.documentai.v1beta2.Document.Page.Token].
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+         */
+        public Builder mergeLayout(com.google.cloud.documentai.v1beta2.Document.Page.Layout value) {
+          if (layoutBuilder_ == null) {
+            if (((bitField0_ & 0x00000001) != 0)
+                && layout_ != null
+                && layout_
+                    != com.google.cloud.documentai.v1beta2.Document.Page.Layout
+                        .getDefaultInstance()) {
+              getLayoutBuilder().mergeFrom(value);
             } else {
-              layoutBuilder_.mergeFrom(value);
+              layout_ = value;
             }
-            bitField0_ |= 0x00000001;
-            onChanged();
-            return this;
+          } else {
+            layoutBuilder_.mergeFrom(value);
           }
-          /**
-           *
-           *
-           * 
-           * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [TableCell][google.cloud.documentai.v1beta2.Document.Page.Table.TableCell].
-           * 

-           *
-           * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
-           */
-          public Builder clearLayout() {
-            bitField0_ = (bitField0_ & ~0x00000001);
-            layout_ = null;
-            if (layoutBuilder_ != null) {
-              layoutBuilder_.dispose();
-              layoutBuilder_ = null;
-            }
-            onChanged();
-            return this;
+          bitField0_ |= 0x00000001;
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+         * [Token][google.cloud.documentai.v1beta2.Document.Page.Token].
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+         */
+        public Builder clearLayout() {
+          bitField0_ = (bitField0_ & ~0x00000001);
+          layout_ = null;
+          if (layoutBuilder_ != null) {
+            layoutBuilder_.dispose();
+            layoutBuilder_ = null;
           }
-          /**
-           *
-           *
-           * 
-           * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [TableCell][google.cloud.documentai.v1beta2.Document.Page.Table.TableCell].
-           * 

-           *
-           * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
-           */
-          public com.google.cloud.documentai.v1beta2.Document.Page.Layout.Builder
-              getLayoutBuilder() {
-            bitField0_ |= 0x00000001;
-            onChanged();
-            return getLayoutFieldBuilder().getBuilder();
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+         * [Token][google.cloud.documentai.v1beta2.Document.Page.Token].
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+         */
+        public com.google.cloud.documentai.v1beta2.Document.Page.Layout.Builder getLayoutBuilder() {
+          bitField0_ |= 0x00000001;
+          onChanged();
+          return getLayoutFieldBuilder().getBuilder();
+        }
+        /**
+         *
+         *
+         * 
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+         * [Token][google.cloud.documentai.v1beta2.Document.Page.Token].
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+         */
+        public com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder
+            getLayoutOrBuilder() {
+          if (layoutBuilder_ != null) {
+            return layoutBuilder_.getMessageOrBuilder();
+          } else {
+            return layout_ == null
+                ? com.google.cloud.documentai.v1beta2.Document.Page.Layout.getDefaultInstance()
+                : layout_;
           }
-          /**
-           *
-           *
-           * 
-           * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [TableCell][google.cloud.documentai.v1beta2.Document.Page.Table.TableCell].
-           * 

-           *
-           * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
-           */
-          public com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder
-              getLayoutOrBuilder() {
-            if (layoutBuilder_ != null) {
-              return layoutBuilder_.getMessageOrBuilder();
-            } else {
-              return layout_ == null
-                  ? com.google.cloud.documentai.v1beta2.Document.Page.Layout.getDefaultInstance()
-                  : layout_;
-            }
-          }
-          /**
-           *
-           *
-           * 
-           * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [TableCell][google.cloud.documentai.v1beta2.Document.Page.Table.TableCell].
-           * 

-           *
-           * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
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-          private com.google.protobuf.SingleFieldBuilderV3<
-                  com.google.cloud.documentai.v1beta2.Document.Page.Layout,
-                  com.google.cloud.documentai.v1beta2.Document.Page.Layout.Builder,
-                  com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder>
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-            if (layoutBuilder_ == null) {
-              layoutBuilder_ =
-                  new com.google.protobuf.SingleFieldBuilderV3<
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-                      com.google.cloud.documentai.v1beta2.Document.Page.Layout.Builder,
-                      com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder>(
-                      getLayout(), getParentForChildren(), isClean());
-              layout_ = null;
-            }
-            return layoutBuilder_;
+        }
+        /**
+         *
+         *
+         * 
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+         * [Token][google.cloud.documentai.v1beta2.Document.Page.Token].
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+         */
+        private com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.documentai.v1beta2.Document.Page.Layout,
+                com.google.cloud.documentai.v1beta2.Document.Page.Layout.Builder,
+                com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder>
+            getLayoutFieldBuilder() {
+          if (layoutBuilder_ == null) {
+            layoutBuilder_ =
+                new com.google.protobuf.SingleFieldBuilderV3<
+                    com.google.cloud.documentai.v1beta2.Document.Page.Layout,
+                    com.google.cloud.documentai.v1beta2.Document.Page.Layout.Builder,
+                    com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder>(
+                    getLayout(), getParentForChildren(), isClean());
+            layout_ = null;
           }
+          return layoutBuilder_;
+        }
 
-          private int rowSpan_;
-          /**
-           *
-           *
-           * 
-           * How many rows this cell spans.
-           * 

-           *
-           * int32 row_span = 2;
-           *
-           * @return The rowSpan.
-           */
-          @java.lang.Override
-          public int getRowSpan() {
-            return rowSpan_;
+        private com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak
+            detectedBreak_;
+        private com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak,
+                com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak.Builder,
+                com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreakOrBuilder>
+            detectedBreakBuilder_;
+        /**
+         *
+         *
+         * 
+         * Detected break at the end of a
+         * [Token][google.cloud.documentai.v1beta2.Document.Page.Token].
+         * 

+         *
+         * 
+         * .google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak detected_break = 2;
+         * 
+         *
+         * @return Whether the detectedBreak field is set.
+         */
+        public boolean hasDetectedBreak() {
+          return ((bitField0_ & 0x00000002) != 0);
+        }
+        /**
+         *
+         *
+         * 
+         * Detected break at the end of a
+         * [Token][google.cloud.documentai.v1beta2.Document.Page.Token].
+         * 

+         *
+         * 
+         * .google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak detected_break = 2;
+         * 
+         *
+         * @return The detectedBreak.
+         */
+        public com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak
+            getDetectedBreak() {
+          if (detectedBreakBuilder_ == null) {
+            return detectedBreak_ == null
+                ? com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak
+                    .getDefaultInstance()
+                : detectedBreak_;
+          } else {
+            return detectedBreakBuilder_.getMessage();
           }
-          /**
-           *
-           *
-           * 
-           * How many rows this cell spans.
-           * 

-           *
-           * int32 row_span = 2;
-           *
-           * @param value The rowSpan to set.
-           * @return This builder for chaining.
-           */
-          public Builder setRowSpan(int value) {
-
-            rowSpan_ = value;
-            bitField0_ |= 0x00000002;
-            onChanged();
-            return this;
+        }
+        /**
+         *
+         *
+         * 
+         * Detected break at the end of a
+         * [Token][google.cloud.documentai.v1beta2.Document.Page.Token].
+         * 

+         *
+         * 
+         * .google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak detected_break = 2;
+         * 
+         */
+        public Builder setDetectedBreak(
+            com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak value) {
+          if (detectedBreakBuilder_ == null) {
+            if (value == null) {
+              throw new NullPointerException();
+            }
+            detectedBreak_ = value;
+          } else {
+            detectedBreakBuilder_.setMessage(value);
           }
-          /**
-           *
-           *
-           * 
-           * How many rows this cell spans.
-           * 

-           *
-           * int32 row_span = 2;
-           *
-           * @return This builder for chaining.
-           */
-          public Builder clearRowSpan() {
-            bitField0_ = (bitField0_ & ~0x00000002);
-            rowSpan_ = 0;
-            onChanged();
-            return this;
+          bitField0_ |= 0x00000002;
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * Detected break at the end of a
+         * [Token][google.cloud.documentai.v1beta2.Document.Page.Token].
+         * 

+         *
+         * 
+         * .google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak detected_break = 2;
+         * 
+         */
+        public Builder setDetectedBreak(
+            com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak.Builder
+                builderForValue) {
+          if (detectedBreakBuilder_ == null) {
+            detectedBreak_ = builderForValue.build();
+          } else {
+            detectedBreakBuilder_.setMessage(builderForValue.build());
           }
-
-          private int colSpan_;
-          /**
-           *
-           *
-           * 
-           * How many columns this cell spans.
-           * 

-           *
-           * int32 col_span = 3;
-           *
-           * @return The colSpan.
-           */
-          @java.lang.Override
-          public int getColSpan() {
-            return colSpan_;
+          bitField0_ |= 0x00000002;
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * Detected break at the end of a
+         * [Token][google.cloud.documentai.v1beta2.Document.Page.Token].
+         * 

+         *
+         * 
+         * .google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak detected_break = 2;
+         * 
+         */
+        public Builder mergeDetectedBreak(
+            com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak value) {
+          if (detectedBreakBuilder_ == null) {
+            if (((bitField0_ & 0x00000002) != 0)
+                && detectedBreak_ != null
+                && detectedBreak_
+                    != com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak
+                        .getDefaultInstance()) {
+              getDetectedBreakBuilder().mergeFrom(value);
+            } else {
+              detectedBreak_ = value;
+            }
+          } else {
+            detectedBreakBuilder_.mergeFrom(value);
           }
-          /**
-           *
-           *
-           * 
-           * How many columns this cell spans.
-           * 

-           *
-           * int32 col_span = 3;
-           *
-           * @param value The colSpan to set.
-           * @return This builder for chaining.
-           */
-          public Builder setColSpan(int value) {
-
-            colSpan_ = value;
-            bitField0_ |= 0x00000004;
-            onChanged();
-            return this;
+          bitField0_ |= 0x00000002;
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * Detected break at the end of a
+         * [Token][google.cloud.documentai.v1beta2.Document.Page.Token].
+         * 

+         *
+         * 
+         * .google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak detected_break = 2;
+         * 
+         */
+        public Builder clearDetectedBreak() {
+          bitField0_ = (bitField0_ & ~0x00000002);
+          detectedBreak_ = null;
+          if (detectedBreakBuilder_ != null) {
+            detectedBreakBuilder_.dispose();
+            detectedBreakBuilder_ = null;
           }
-          /**
-           *
-           *
-           * 
-           * How many columns this cell spans.
-           * 

-           *
-           * int32 col_span = 3;
-           *
-           * @return This builder for chaining.
-           */
-          public Builder clearColSpan() {
-            bitField0_ = (bitField0_ & ~0x00000004);
-            colSpan_ = 0;
-            onChanged();
-            return this;
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * Detected break at the end of a
+         * [Token][google.cloud.documentai.v1beta2.Document.Page.Token].
+         * 

+         *
+         * 
+         * .google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak detected_break = 2;
+         * 
+         */
+        public com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak.Builder
+            getDetectedBreakBuilder() {
+          bitField0_ |= 0x00000002;
+          onChanged();
+          return getDetectedBreakFieldBuilder().getBuilder();
+        }
+        /**
+         *
+         *
+         * 
+         * Detected break at the end of a
+         * [Token][google.cloud.documentai.v1beta2.Document.Page.Token].
+         * 

+         *
+         * 
+         * .google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak detected_break = 2;
+         * 
+         */
+        public com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreakOrBuilder
+            getDetectedBreakOrBuilder() {
+          if (detectedBreakBuilder_ != null) {
+            return detectedBreakBuilder_.getMessageOrBuilder();
+          } else {
+            return detectedBreak_ == null
+                ? com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak
+                    .getDefaultInstance()
+                : detectedBreak_;
+          }
+        }
+        /**
+         *
+         *
+         * 
+         * Detected break at the end of a
+         * [Token][google.cloud.documentai.v1beta2.Document.Page.Token].
+         * 

+         *
+         * 
+         * .google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak detected_break = 2;
+         * 
+         */
+        private com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak,
+                com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak.Builder,
+                com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreakOrBuilder>
+            getDetectedBreakFieldBuilder() {
+          if (detectedBreakBuilder_ == null) {
+            detectedBreakBuilder_ =
+                new com.google.protobuf.SingleFieldBuilderV3<
+                    com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak,
+                    com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreak.Builder,
+                    com.google.cloud.documentai.v1beta2.Document.Page.Token.DetectedBreakOrBuilder>(
+                    getDetectedBreak(), getParentForChildren(), isClean());
+            detectedBreak_ = null;
           }
+          return detectedBreakBuilder_;
+        }
 
-          private java.util.List
-              detectedLanguages_ = java.util.Collections.emptyList();
+        private java.util.List
+            detectedLanguages_ = java.util.Collections.emptyList();
 
-          private void ensureDetectedLanguagesIsMutable() {
-            if (!((bitField0_ & 0x00000008) != 0)) {
-              detectedLanguages_ =
-                  new java.util.ArrayList<
-                      com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage>(
-                      detectedLanguages_);
-              bitField0_ |= 0x00000008;
-            }
+        private void ensureDetectedLanguagesIsMutable() {
+          if (!((bitField0_ & 0x00000004) != 0)) {
+            detectedLanguages_ =
+                new java.util.ArrayList<
+                    com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage>(
+                    detectedLanguages_);
+            bitField0_ |= 0x00000004;
           }
+        }
 
-          private com.google.protobuf.RepeatedFieldBuilderV3<
-                  com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage,
-                  com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder,
-                  com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>
-              detectedLanguagesBuilder_;
+        private com.google.protobuf.RepeatedFieldBuilderV3<
+                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage,
+                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder,
+                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>
+            detectedLanguagesBuilder_;
 
-          /**
-           *
-           *
-           * 
-           * A list of detected languages together with confidence.
-           * 

-           *
-           * 
-           * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
-           * 
-           */
-          public java.util.List
-              getDetectedLanguagesList() {
-            if (detectedLanguagesBuilder_ == null) {
-              return java.util.Collections.unmodifiableList(detectedLanguages_);
-            } else {
-              return detectedLanguagesBuilder_.getMessageList();
-            }
-          }
-          /**
-           *
-           *
-           * 
-           * A list of detected languages together with confidence.
-           * 

-           *
-           * 
-           * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
-           * 
-           */
-          public int getDetectedLanguagesCount() {
-            if (detectedLanguagesBuilder_ == null) {
-              return detectedLanguages_.size();
-            } else {
-              return detectedLanguagesBuilder_.getCount();
-            }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
+         * 
+         */
+        public java.util.List
+            getDetectedLanguagesList() {
+          if (detectedLanguagesBuilder_ == null) {
+            return java.util.Collections.unmodifiableList(detectedLanguages_);
+          } else {
+            return detectedLanguagesBuilder_.getMessageList();
           }
-          /**
-           *
-           *
-           * 
-           * A list of detected languages together with confidence.
-           * 

-           *
-           * 
-           * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
-           * 
-           */
-          public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage
-              getDetectedLanguages(int index) {
-            if (detectedLanguagesBuilder_ == null) {
-              return detectedLanguages_.get(index);
-            } else {
-              return detectedLanguagesBuilder_.getMessage(index);
-            }
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
+         * 
+         */
+        public int getDetectedLanguagesCount() {
+          if (detectedLanguagesBuilder_ == null) {
+            return detectedLanguages_.size();
+          } else {
+            return detectedLanguagesBuilder_.getCount();
           }
-          /**
-           *
-           *
-           * 
-           * A list of detected languages together with confidence.
-           * 

-           *
-           * 
-           * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
-           * 
-           */
-          public Builder setDetectedLanguages(
-              int index, com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value) {
-            if (detectedLanguagesBuilder_ == null) {
-              if (value == null) {
-                throw new NullPointerException();
-              }
-              ensureDetectedLanguagesIsMutable();
-              detectedLanguages_.set(index, value);
-              onChanged();
-            } else {
-              detectedLanguagesBuilder_.setMessage(index, value);
-            }
-            return this;
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
+         * 
+         */
+        public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage
+            getDetectedLanguages(int index) {
+          if (detectedLanguagesBuilder_ == null) {
+            return detectedLanguages_.get(index);
+          } else {
+            return detectedLanguagesBuilder_.getMessage(index);
           }
-          /**
-           *
-           *
-           * 
-           * A list of detected languages together with confidence.
-           * 

-           *
-           * 
-           * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
-           * 
-           */
-          public Builder setDetectedLanguages(
-              int index,
-              com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
-                  builderForValue) {
-            if (detectedLanguagesBuilder_ == null) {
-              ensureDetectedLanguagesIsMutable();
-              detectedLanguages_.set(index, builderForValue.build());
-              onChanged();
-            } else {
-              detectedLanguagesBuilder_.setMessage(index, builderForValue.build());
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
+         * 
+         */
+        public Builder setDetectedLanguages(
+            int index, com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value) {
+          if (detectedLanguagesBuilder_ == null) {
+            if (value == null) {
+              throw new NullPointerException();
             }
-            return this;
+            ensureDetectedLanguagesIsMutable();
+            detectedLanguages_.set(index, value);
+            onChanged();
+          } else {
+            detectedLanguagesBuilder_.setMessage(index, value);
           }
-          /**
-           *
-           *
-           * 
-           * A list of detected languages together with confidence.
-           * 

-           *
-           * 
-           * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
-           * 
-           */
-          public Builder addDetectedLanguages(
-              com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value) {
-            if (detectedLanguagesBuilder_ == null) {
-              if (value == null) {
-                throw new NullPointerException();
-              }
-              ensureDetectedLanguagesIsMutable();
-              detectedLanguages_.add(value);
-              onChanged();
-            } else {
-              detectedLanguagesBuilder_.addMessage(value);
-            }
-            return this;
-          }
-          /**
-           *
-           *
-           * 
-           * A list of detected languages together with confidence.
-           * 

-           *
-           * 
-           * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
-           * 
-           */
-          public Builder addDetectedLanguages(
-              int index, com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value) {
-            if (detectedLanguagesBuilder_ == null) {
-              if (value == null) {
-                throw new NullPointerException();
-              }
-              ensureDetectedLanguagesIsMutable();
-              detectedLanguages_.add(index, value);
-              onChanged();
-            } else {
-              detectedLanguagesBuilder_.addMessage(index, value);
-            }
-            return this;
-          }
-          /**
-           *
-           *
-           * 
-           * A list of detected languages together with confidence.
-           * 

-           *
-           * 
-           * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
-           * 
-           */
-          public Builder addDetectedLanguages(
-              com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
-                  builderForValue) {
-            if (detectedLanguagesBuilder_ == null) {
-              ensureDetectedLanguagesIsMutable();
-              detectedLanguages_.add(builderForValue.build());
-              onChanged();
-            } else {
-              detectedLanguagesBuilder_.addMessage(builderForValue.build());
-            }
-            return this;
-          }
-          /**
-           *
-           *
-           * 
-           * A list of detected languages together with confidence.
-           * 

-           *
-           * 
-           * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
-           * 
-           */
-          public Builder addDetectedLanguages(
-              int index,
-              com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
-                  builderForValue) {
-            if (detectedLanguagesBuilder_ == null) {
-              ensureDetectedLanguagesIsMutable();
-              detectedLanguages_.add(index, builderForValue.build());
-              onChanged();
-            } else {
-              detectedLanguagesBuilder_.addMessage(index, builderForValue.build());
-            }
-            return this;
-          }
-          /**
-           *
-           *
-           * 
-           * A list of detected languages together with confidence.
-           * 

-           *
-           * 
-           * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
-           * 
-           */
-          public Builder addAllDetectedLanguages(
-              java.lang.Iterable<
-                      ? extends com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage>
-                  values) {
-            if (detectedLanguagesBuilder_ == null) {
-              ensureDetectedLanguagesIsMutable();
-              com.google.protobuf.AbstractMessageLite.Builder.addAll(values, detectedLanguages_);
-              onChanged();
-            } else {
-              detectedLanguagesBuilder_.addAllMessages(values);
-            }
-            return this;
-          }
-          /**
-           *
-           *
-           * 
-           * A list of detected languages together with confidence.
-           * 

-           *
-           * 
-           * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
-           * 
-           */
-          public Builder clearDetectedLanguages() {
-            if (detectedLanguagesBuilder_ == null) {
-              detectedLanguages_ = java.util.Collections.emptyList();
-              bitField0_ = (bitField0_ & ~0x00000008);
-              onChanged();
-            } else {
-              detectedLanguagesBuilder_.clear();
-            }
-            return this;
-          }
-          /**
-           *
-           *
-           * 
-           * A list of detected languages together with confidence.
-           * 

-           *
-           * 
-           * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
-           * 
-           */
-          public Builder removeDetectedLanguages(int index) {
-            if (detectedLanguagesBuilder_ == null) {
-              ensureDetectedLanguagesIsMutable();
-              detectedLanguages_.remove(index);
-              onChanged();
-            } else {
-              detectedLanguagesBuilder_.remove(index);
-            }
-            return this;
-          }
-          /**
-           *
-           *
-           * 
-           * A list of detected languages together with confidence.
-           * 

-           *
-           * 
-           * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
-           * 
-           */
-          public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
-              getDetectedLanguagesBuilder(int index) {
-            return getDetectedLanguagesFieldBuilder().getBuilder(index);
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
+         * 
+         */
+        public Builder setDetectedLanguages(
+            int index,
+            com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
+                builderForValue) {
+          if (detectedLanguagesBuilder_ == null) {
+            ensureDetectedLanguagesIsMutable();
+            detectedLanguages_.set(index, builderForValue.build());
+            onChanged();
+          } else {
+            detectedLanguagesBuilder_.setMessage(index, builderForValue.build());
           }
-          /**
-           *
-           *
-           * 
-           * A list of detected languages together with confidence.
-           * 

-           *
-           * 
-           * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
-           * 
-           */
-          public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder
-              getDetectedLanguagesOrBuilder(int index) {
-            if (detectedLanguagesBuilder_ == null) {
-              return detectedLanguages_.get(index);
-            } else {
-              return detectedLanguagesBuilder_.getMessageOrBuilder(index);
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
+         * 
+         */
+        public Builder addDetectedLanguages(
+            com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value) {
+          if (detectedLanguagesBuilder_ == null) {
+            if (value == null) {
+              throw new NullPointerException();
             }
+            ensureDetectedLanguagesIsMutable();
+            detectedLanguages_.add(value);
+            onChanged();
+          } else {
+            detectedLanguagesBuilder_.addMessage(value);
           }
-          /**
-           *
-           *
-           * 
-           * A list of detected languages together with confidence.
-           * 

-           *
-           * 
-           * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
-           * 
-           */
-          public java.util.List<
-                  ? extends
-                      com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>
-              getDetectedLanguagesOrBuilderList() {
-            if (detectedLanguagesBuilder_ != null) {
-              return detectedLanguagesBuilder_.getMessageOrBuilderList();
-            } else {
-              return java.util.Collections.unmodifiableList(detectedLanguages_);
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
+         * 
+         */
+        public Builder addDetectedLanguages(
+            int index, com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value) {
+          if (detectedLanguagesBuilder_ == null) {
+            if (value == null) {
+              throw new NullPointerException();
             }
+            ensureDetectedLanguagesIsMutable();
+            detectedLanguages_.add(index, value);
+            onChanged();
+          } else {
+            detectedLanguagesBuilder_.addMessage(index, value);
           }
-          /**
-           *
-           *
-           * 
-           * A list of detected languages together with confidence.
-           * 

-           *
-           * 
-           * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
-           * 
-           */
-          public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
-              addDetectedLanguagesBuilder() {
-            return getDetectedLanguagesFieldBuilder()
-                .addBuilder(
-                    com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage
-                        .getDefaultInstance());
-          }
-          /**
-           *
-           *
-           * 
-           * A list of detected languages together with confidence.
-           * 

-           *
-           * 
-           * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
-           * 
-           */
-          public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
-              addDetectedLanguagesBuilder(int index) {
-            return getDetectedLanguagesFieldBuilder()
-                .addBuilder(
-                    index,
-                    com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage
-                        .getDefaultInstance());
-          }
-          /**
-           *
-           *
-           * 
-           * A list of detected languages together with confidence.
-           * 

-           *
-           * 
-           * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
-           * 
-           */
-          public java.util.List<
-                  com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder>
-              getDetectedLanguagesBuilderList() {
-            return getDetectedLanguagesFieldBuilder().getBuilderList();
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
+         * 
+         */
+        public Builder addDetectedLanguages(
+            com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
+                builderForValue) {
+          if (detectedLanguagesBuilder_ == null) {
+            ensureDetectedLanguagesIsMutable();
+            detectedLanguages_.add(builderForValue.build());
+            onChanged();
+          } else {
+            detectedLanguagesBuilder_.addMessage(builderForValue.build());
           }
-
-          private com.google.protobuf.RepeatedFieldBuilderV3<
-                  com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage,
-                  com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder,
-                  com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>
-              getDetectedLanguagesFieldBuilder() {
-            if (detectedLanguagesBuilder_ == null) {
-              detectedLanguagesBuilder_ =
-                  new com.google.protobuf.RepeatedFieldBuilderV3<
-                      com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage,
-                      com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder,
-                      com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>(
-                      detectedLanguages_,
-                      ((bitField0_ & 0x00000008) != 0),
-                      getParentForChildren(),
-                      isClean());
-              detectedLanguages_ = null;
-            }
-            return detectedLanguagesBuilder_;
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
+         * 
+         */
+        public Builder addDetectedLanguages(
+            int index,
+            com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
+                builderForValue) {
+          if (detectedLanguagesBuilder_ == null) {
+            ensureDetectedLanguagesIsMutable();
+            detectedLanguages_.add(index, builderForValue.build());
+            onChanged();
+          } else {
+            detectedLanguagesBuilder_.addMessage(index, builderForValue.build());
           }
-
-          @java.lang.Override
-          public final Builder setUnknownFields(
-              final com.google.protobuf.UnknownFieldSet unknownFields) {
-            return super.setUnknownFields(unknownFields);
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
+         * 
+         */
+        public Builder addAllDetectedLanguages(
+            java.lang.Iterable<
+                    ? extends com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage>
+                values) {
+          if (detectedLanguagesBuilder_ == null) {
+            ensureDetectedLanguagesIsMutable();
+            com.google.protobuf.AbstractMessageLite.Builder.addAll(values, detectedLanguages_);
+            onChanged();
+          } else {
+            detectedLanguagesBuilder_.addAllMessages(values);
           }
-
-          @java.lang.Override
-          public final Builder mergeUnknownFields(
-              final com.google.protobuf.UnknownFieldSet unknownFields) {
-            return super.mergeUnknownFields(unknownFields);
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
+         * 
+         */
+        public Builder clearDetectedLanguages() {
+          if (detectedLanguagesBuilder_ == null) {
+            detectedLanguages_ = java.util.Collections.emptyList();
+            bitField0_ = (bitField0_ & ~0x00000004);
+            onChanged();
+          } else {
+            detectedLanguagesBuilder_.clear();
           }
-
-          // @@protoc_insertion_point(builder_scope:google.cloud.documentai.v1beta2.Document.Page.Table.TableCell)
+          return this;
         }
-
-        // @@protoc_insertion_point(class_scope:google.cloud.documentai.v1beta2.Document.Page.Table.TableCell)
-        private static final com.google.cloud.documentai.v1beta2.Document.Page.Table.TableCell
-            DEFAULT_INSTANCE;
-
-        static {
-          DEFAULT_INSTANCE =
-              new com.google.cloud.documentai.v1beta2.Document.Page.Table.TableCell();
+        /**
+         *
+         *
+         * 
+         * A list of detected languages together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
+         * 
+         */
+        public Builder removeDetectedLanguages(int index) {
+          if (detectedLanguagesBuilder_ == null) {
+            ensureDetectedLanguagesIsMutable();
+            detectedLanguages_.remove(index);
+            onChanged();
+          } else {
+            detectedLanguagesBuilder_.remove(index);
+          }
+          return this;
         }
-
-        public static com.google.cloud.documentai.v1beta2.Document.Page.Table.TableCell
-            getDefaultInstance() {
-          return DEFAULT_INSTANCE;
+        /**
+         *
+         *
+         * 
+         * A list of detected languages together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
+         * 
+         */
+        public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
+            getDetectedLanguagesBuilder(int index) {
+          return getDetectedLanguagesFieldBuilder().getBuilder(index);
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
+         * 
+         */
+        public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder
+            getDetectedLanguagesOrBuilder(int index) {
+          if (detectedLanguagesBuilder_ == null) {
+            return detectedLanguages_.get(index);
+          } else {
+            return detectedLanguagesBuilder_.getMessageOrBuilder(index);
+          }
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
+         * 
+         */
+        public java.util.List<
+                ? extends
+                    com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>
+            getDetectedLanguagesOrBuilderList() {
+          if (detectedLanguagesBuilder_ != null) {
+            return detectedLanguagesBuilder_.getMessageOrBuilderList();
+          } else {
+            return java.util.Collections.unmodifiableList(detectedLanguages_);
+          }
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
+         * 
+         */
+        public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
+            addDetectedLanguagesBuilder() {
+          return getDetectedLanguagesFieldBuilder()
+              .addBuilder(
+                  com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage
+                      .getDefaultInstance());
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
+         * 
+         */
+        public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
+            addDetectedLanguagesBuilder(int index) {
+          return getDetectedLanguagesFieldBuilder()
+              .addBuilder(
+                  index,
+                  com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage
+                      .getDefaultInstance());
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
+         * 
+         */
+        public java.util.List<
+                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder>
+            getDetectedLanguagesBuilderList() {
+          return getDetectedLanguagesFieldBuilder().getBuilderList();
         }
 
-        private static final com.google.protobuf.Parser PARSER =
-            new com.google.protobuf.AbstractParser() {
-              @java.lang.Override
-              public TableCell parsePartialFrom(
-                  com.google.protobuf.CodedInputStream input,
-                  com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-                  throws com.google.protobuf.InvalidProtocolBufferException {
-                Builder builder = newBuilder();
-                try {
-                  builder.mergeFrom(input, extensionRegistry);
-                } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-                  throw e.setUnfinishedMessage(builder.buildPartial());
-                } catch (com.google.protobuf.UninitializedMessageException e) {
-                  throw e.asInvalidProtocolBufferException()
-                      .setUnfinishedMessage(builder.buildPartial());
-                } catch (java.io.IOException e) {
-                  throw new com.google.protobuf.InvalidProtocolBufferException(e)
-                      .setUnfinishedMessage(builder.buildPartial());
-                }
-                return builder.buildPartial();
-              }
-            };
-
-        public static com.google.protobuf.Parser parser() {
-          return PARSER;
+        private com.google.protobuf.RepeatedFieldBuilderV3<
+                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage,
+                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder,
+                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>
+            getDetectedLanguagesFieldBuilder() {
+          if (detectedLanguagesBuilder_ == null) {
+            detectedLanguagesBuilder_ =
+                new com.google.protobuf.RepeatedFieldBuilderV3<
+                    com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage,
+                    com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder,
+                    com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>(
+                    detectedLanguages_,
+                    ((bitField0_ & 0x00000004) != 0),
+                    getParentForChildren(),
+                    isClean());
+            detectedLanguages_ = null;
+          }
+          return detectedLanguagesBuilder_;
+        }
+
+        private com.google.cloud.documentai.v1beta2.Document.Provenance provenance_;
+        private com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.documentai.v1beta2.Document.Provenance,
+                com.google.cloud.documentai.v1beta2.Document.Provenance.Builder,
+                com.google.cloud.documentai.v1beta2.Document.ProvenanceOrBuilder>
+            provenanceBuilder_;
+        /**
+         *
+         *
+         * 
+         * The history of this annotation.
+         * 

+         *
+         * 
+         * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 4 [deprecated = true];
+         * 
+         *
+         * @deprecated google.cloud.documentai.v1beta2.Document.Page.Token.provenance is deprecated.
+         *     See google/cloud/documentai/v1beta2/document.proto;l=352
+         * @return Whether the provenance field is set.
+         */
+        @java.lang.Deprecated
+        public boolean hasProvenance() {
+          return ((bitField0_ & 0x00000008) != 0);
+        }
+        /**
+         *
+         *
+         * 
+         * The history of this annotation.
+         * 

+         *
+         * 
+         * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 4 [deprecated = true];
+         * 
+         *
+         * @deprecated google.cloud.documentai.v1beta2.Document.Page.Token.provenance is deprecated.
+         *     See google/cloud/documentai/v1beta2/document.proto;l=352
+         * @return The provenance.
+         */
+        @java.lang.Deprecated
+        public com.google.cloud.documentai.v1beta2.Document.Provenance getProvenance() {
+          if (provenanceBuilder_ == null) {
+            return provenance_ == null
+                ? com.google.cloud.documentai.v1beta2.Document.Provenance.getDefaultInstance()
+                : provenance_;
+          } else {
+            return provenanceBuilder_.getMessage();
+          }
+        }
+        /**
+         *
+         *
+         * 
+         * The history of this annotation.
+         * 

+         *
+         * 
+         * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 4 [deprecated = true];
+         * 
+         */
+        @java.lang.Deprecated
+        public Builder setProvenance(
+            com.google.cloud.documentai.v1beta2.Document.Provenance value) {
+          if (provenanceBuilder_ == null) {
+            if (value == null) {
+              throw new NullPointerException();
+            }
+            provenance_ = value;
+          } else {
+            provenanceBuilder_.setMessage(value);
+          }
+          bitField0_ |= 0x00000008;
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * The history of this annotation.
+         * 

+         *
+         * 
+         * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 4 [deprecated = true];
+         * 
+         */
+        @java.lang.Deprecated
+        public Builder setProvenance(
+            com.google.cloud.documentai.v1beta2.Document.Provenance.Builder builderForValue) {
+          if (provenanceBuilder_ == null) {
+            provenance_ = builderForValue.build();
+          } else {
+            provenanceBuilder_.setMessage(builderForValue.build());
+          }
+          bitField0_ |= 0x00000008;
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * The history of this annotation.
+         * 

+         *
+         * 
+         * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 4 [deprecated = true];
+         * 
+         */
+        @java.lang.Deprecated
+        public Builder mergeProvenance(
+            com.google.cloud.documentai.v1beta2.Document.Provenance value) {
+          if (provenanceBuilder_ == null) {
+            if (((bitField0_ & 0x00000008) != 0)
+                && provenance_ != null
+                && provenance_
+                    != com.google.cloud.documentai.v1beta2.Document.Provenance
+                        .getDefaultInstance()) {
+              getProvenanceBuilder().mergeFrom(value);
+            } else {
+              provenance_ = value;
+            }
+          } else {
+            provenanceBuilder_.mergeFrom(value);
+          }
+          bitField0_ |= 0x00000008;
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * The history of this annotation.
+         * 

+         *
+         * 
+         * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 4 [deprecated = true];
+         * 
+         */
+        @java.lang.Deprecated
+        public Builder clearProvenance() {
+          bitField0_ = (bitField0_ & ~0x00000008);
+          provenance_ = null;
+          if (provenanceBuilder_ != null) {
+            provenanceBuilder_.dispose();
+            provenanceBuilder_ = null;
+          }
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * The history of this annotation.
+         * 

+         *
+         * 
+         * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 4 [deprecated = true];
+         * 
+         */
+        @java.lang.Deprecated
+        public com.google.cloud.documentai.v1beta2.Document.Provenance.Builder
+            getProvenanceBuilder() {
+          bitField0_ |= 0x00000008;
+          onChanged();
+          return getProvenanceFieldBuilder().getBuilder();
+        }
+        /**
+         *
+         *
+         * 
+         * The history of this annotation.
+         * 

+         *
+         * 
+         * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 4 [deprecated = true];
+         * 
+         */
+        @java.lang.Deprecated
+        public com.google.cloud.documentai.v1beta2.Document.ProvenanceOrBuilder
+            getProvenanceOrBuilder() {
+          if (provenanceBuilder_ != null) {
+            return provenanceBuilder_.getMessageOrBuilder();
+          } else {
+            return provenance_ == null
+                ? com.google.cloud.documentai.v1beta2.Document.Provenance.getDefaultInstance()
+                : provenance_;
+          }
+        }
+        /**
+         *
+         *
+         * 
+         * The history of this annotation.
+         * 

+         *
+         * 
+         * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 4 [deprecated = true];
+         * 
+         */
+        private com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.documentai.v1beta2.Document.Provenance,
+                com.google.cloud.documentai.v1beta2.Document.Provenance.Builder,
+                com.google.cloud.documentai.v1beta2.Document.ProvenanceOrBuilder>
+            getProvenanceFieldBuilder() {
+          if (provenanceBuilder_ == null) {
+            provenanceBuilder_ =
+                new com.google.protobuf.SingleFieldBuilderV3<
+                    com.google.cloud.documentai.v1beta2.Document.Provenance,
+                    com.google.cloud.documentai.v1beta2.Document.Provenance.Builder,
+                    com.google.cloud.documentai.v1beta2.Document.ProvenanceOrBuilder>(
+                    getProvenance(), getParentForChildren(), isClean());
+            provenance_ = null;
+          }
+          return provenanceBuilder_;
+        }
+
+        private com.google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo styleInfo_;
+        private com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo,
+                com.google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo.Builder,
+                com.google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfoOrBuilder>
+            styleInfoBuilder_;
+        /**
+         *
+         *
+         * 
+         * Text style attributes.
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo style_info = 5;
+         * 
+         *
+         * @return Whether the styleInfo field is set.
+         */
+        public boolean hasStyleInfo() {
+          return ((bitField0_ & 0x00000010) != 0);
+        }
+        /**
+         *
+         *
+         * 
+         * Text style attributes.
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo style_info = 5;
+         * 
+         *
+         * @return The styleInfo.
+         */
+        public com.google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo getStyleInfo() {
+          if (styleInfoBuilder_ == null) {
+            return styleInfo_ == null
+                ? com.google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo
+                    .getDefaultInstance()
+                : styleInfo_;
+          } else {
+            return styleInfoBuilder_.getMessage();
+          }
+        }
+        /**
+         *
+         *
+         * 
+         * Text style attributes.
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo style_info = 5;
+         * 
+         */
+        public Builder setStyleInfo(
+            com.google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo value) {
+          if (styleInfoBuilder_ == null) {
+            if (value == null) {
+              throw new NullPointerException();
+            }
+            styleInfo_ = value;
+          } else {
+            styleInfoBuilder_.setMessage(value);
+          }
+          bitField0_ |= 0x00000010;
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * Text style attributes.
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo style_info = 5;
+         * 
+         */
+        public Builder setStyleInfo(
+            com.google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo.Builder
+                builderForValue) {
+          if (styleInfoBuilder_ == null) {
+            styleInfo_ = builderForValue.build();
+          } else {
+            styleInfoBuilder_.setMessage(builderForValue.build());
+          }
+          bitField0_ |= 0x00000010;
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * Text style attributes.
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo style_info = 5;
+         * 
+         */
+        public Builder mergeStyleInfo(
+            com.google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo value) {
+          if (styleInfoBuilder_ == null) {
+            if (((bitField0_ & 0x00000010) != 0)
+                && styleInfo_ != null
+                && styleInfo_
+                    != com.google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo
+                        .getDefaultInstance()) {
+              getStyleInfoBuilder().mergeFrom(value);
+            } else {
+              styleInfo_ = value;
+            }
+          } else {
+            styleInfoBuilder_.mergeFrom(value);
+          }
+          bitField0_ |= 0x00000010;
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * Text style attributes.
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo style_info = 5;
+         * 
+         */
+        public Builder clearStyleInfo() {
+          bitField0_ = (bitField0_ & ~0x00000010);
+          styleInfo_ = null;
+          if (styleInfoBuilder_ != null) {
+            styleInfoBuilder_.dispose();
+            styleInfoBuilder_ = null;
+          }
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * Text style attributes.
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo style_info = 5;
+         * 
+         */
+        public com.google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo.Builder
+            getStyleInfoBuilder() {
+          bitField0_ |= 0x00000010;
+          onChanged();
+          return getStyleInfoFieldBuilder().getBuilder();
+        }
+        /**
+         *
+         *
+         * 
+         * Text style attributes.
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo style_info = 5;
+         * 
+         */
+        public com.google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfoOrBuilder
+            getStyleInfoOrBuilder() {
+          if (styleInfoBuilder_ != null) {
+            return styleInfoBuilder_.getMessageOrBuilder();
+          } else {
+            return styleInfo_ == null
+                ? com.google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo
+                    .getDefaultInstance()
+                : styleInfo_;
+          }
+        }
+        /**
+         *
+         *
+         * 
+         * Text style attributes.
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo style_info = 5;
+         * 
+         */
+        private com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo,
+                com.google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo.Builder,
+                com.google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfoOrBuilder>
+            getStyleInfoFieldBuilder() {
+          if (styleInfoBuilder_ == null) {
+            styleInfoBuilder_ =
+                new com.google.protobuf.SingleFieldBuilderV3<
+                    com.google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo,
+                    com.google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo.Builder,
+                    com.google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfoOrBuilder>(
+                    getStyleInfo(), getParentForChildren(), isClean());
+            styleInfo_ = null;
+          }
+          return styleInfoBuilder_;
         }
 
         @java.lang.Override
-        public com.google.protobuf.Parser getParserForType() {
-          return PARSER;
+        public final Builder setUnknownFields(
+            final com.google.protobuf.UnknownFieldSet unknownFields) {
+          return super.setUnknownFields(unknownFields);
         }
 
         @java.lang.Override
-        public com.google.cloud.documentai.v1beta2.Document.Page.Table.TableCell
-            getDefaultInstanceForType() {
-          return DEFAULT_INSTANCE;
+        public final Builder mergeUnknownFields(
+            final com.google.protobuf.UnknownFieldSet unknownFields) {
+          return super.mergeUnknownFields(unknownFields);
         }
+
+        // @@protoc_insertion_point(builder_scope:google.cloud.documentai.v1beta2.Document.Page.Token)
       }
 
-      public static final int LAYOUT_FIELD_NUMBER = 1;
-      private com.google.cloud.documentai.v1beta2.Document.Page.Layout layout_;
+      // @@protoc_insertion_point(class_scope:google.cloud.documentai.v1beta2.Document.Page.Token)
+      private static final com.google.cloud.documentai.v1beta2.Document.Page.Token DEFAULT_INSTANCE;
+
+      static {
+        DEFAULT_INSTANCE = new com.google.cloud.documentai.v1beta2.Document.Page.Token();
+      }
+
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Token getDefaultInstance() {
+        return DEFAULT_INSTANCE;
+      }
+
+      private static final com.google.protobuf.Parser PARSER =
+          new com.google.protobuf.AbstractParser() {
+            @java.lang.Override
+            public Token parsePartialFrom(
+                com.google.protobuf.CodedInputStream input,
+                com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+                throws com.google.protobuf.InvalidProtocolBufferException {
+              Builder builder = newBuilder();
+              try {
+                builder.mergeFrom(input, extensionRegistry);
+              } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+                throw e.setUnfinishedMessage(builder.buildPartial());
+              } catch (com.google.protobuf.UninitializedMessageException e) {
+                throw e.asInvalidProtocolBufferException()
+                    .setUnfinishedMessage(builder.buildPartial());
+              } catch (java.io.IOException e) {
+                throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                    .setUnfinishedMessage(builder.buildPartial());
+              }
+              return builder.buildPartial();
+            }
+          };
+
+      public static com.google.protobuf.Parser parser() {
+        return PARSER;
+      }
+
+      @java.lang.Override
+      public com.google.protobuf.Parser getParserForType() {
+        return PARSER;
+      }
+
+      @java.lang.Override
+      public com.google.cloud.documentai.v1beta2.Document.Page.Token getDefaultInstanceForType() {
+        return DEFAULT_INSTANCE;
+      }
+    }
+
+    public interface SymbolOrBuilder
+        extends
+        // @@protoc_insertion_point(interface_extends:google.cloud.documentai.v1beta2.Document.Page.Symbol)
+        com.google.protobuf.MessageOrBuilder {
+
       /**
        *
        *
        * 
-       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [Table][google.cloud.documentai.v1beta2.Document.Page.Table].
+       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+       * [Symbol][google.cloud.documentai.v1beta2.Document.Page.Symbol].
        * 

        *
        * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
        *
        * @return Whether the layout field is set.
        */
-      @java.lang.Override
-      public boolean hasLayout() {
-        return layout_ != null;
-      }
+      boolean hasLayout();
       /**
        *
        *
        * 
-       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [Table][google.cloud.documentai.v1beta2.Document.Page.Table].
+       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+       * [Symbol][google.cloud.documentai.v1beta2.Document.Page.Symbol].
        * 

        *
        * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
        *
        * @return The layout.
        */
-      @java.lang.Override
-      public com.google.cloud.documentai.v1beta2.Document.Page.Layout getLayout() {
-        return layout_ == null
-            ? com.google.cloud.documentai.v1beta2.Document.Page.Layout.getDefaultInstance()
-            : layout_;
-      }
+      com.google.cloud.documentai.v1beta2.Document.Page.Layout getLayout();
       /**
        *
        *
        * 
-       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [Table][google.cloud.documentai.v1beta2.Document.Page.Table].
+       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+       * [Symbol][google.cloud.documentai.v1beta2.Document.Page.Symbol].
        * 

        *
        * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
        */
-      @java.lang.Override
-      public com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder
-          getLayoutOrBuilder() {
-        return layout_ == null
-            ? com.google.cloud.documentai.v1beta2.Document.Page.Layout.getDefaultInstance()
-            : layout_;
-      }
-
-      public static final int HEADER_ROWS_FIELD_NUMBER = 2;
+      com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder getLayoutOrBuilder();
 
-      @SuppressWarnings("serial")
-      private java.util.List
-          headerRows_;
       /**
        *
        *
        * 
-       * Header rows of the table.
+       * A list of detected languages together with confidence.
        * 

        *
        * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow header_rows = 2;
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
        * 
        */
-      @java.lang.Override
-      public java.util.List
-          getHeaderRowsList() {
-        return headerRows_;
-      }
+      java.util.List
+          getDetectedLanguagesList();
       /**
        *
        *
        * 
-       * Header rows of the table.
+       * A list of detected languages together with confidence.
        * 

        *
        * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow header_rows = 2;
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
        * 
        */
-      @java.lang.Override
-      public java.util.List<
-              ? extends com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRowOrBuilder>
-          getHeaderRowsOrBuilderList() {
-        return headerRows_;
-      }
+      com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage getDetectedLanguages(
+          int index);
       /**
        *
        *
        * 
-       * Header rows of the table.
+       * A list of detected languages together with confidence.
        * 

        *
        * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow header_rows = 2;
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
        * 
        */
-      @java.lang.Override
-      public int getHeaderRowsCount() {
-        return headerRows_.size();
-      }
+      int getDetectedLanguagesCount();
       /**
        *
        *
        * 
-       * Header rows of the table.
+       * A list of detected languages together with confidence.
        * 

        *
        * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow header_rows = 2;
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
        * 
        */
-      @java.lang.Override
-      public com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow getHeaderRows(
-          int index) {
-        return headerRows_.get(index);
-      }
+      java.util.List<
+              ? extends com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>
+          getDetectedLanguagesOrBuilderList();
       /**
        *
        *
        * 
-       * Header rows of the table.
+       * A list of detected languages together with confidence.
        * 

        *
        * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow header_rows = 2;
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
        * 
        */
-      @java.lang.Override
-      public com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRowOrBuilder
-          getHeaderRowsOrBuilder(int index) {
-        return headerRows_.get(index);
+      com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder
+          getDetectedLanguagesOrBuilder(int index);
+    }
+    /**
+     *
+     *
+     * 
+     * A detected symbol.
+     * 

+     *
+     * Protobuf type {@code google.cloud.documentai.v1beta2.Document.Page.Symbol}
+     */
+    public static final class Symbol extends com.google.protobuf.GeneratedMessageV3
+        implements
+        // @@protoc_insertion_point(message_implements:google.cloud.documentai.v1beta2.Document.Page.Symbol)
+        SymbolOrBuilder {
+      private static final long serialVersionUID = 0L;
+      // Use Symbol.newBuilder() to construct.
+      private Symbol(com.google.protobuf.GeneratedMessageV3.Builder builder) {
+        super(builder);
       }
 
-      public static final int BODY_ROWS_FIELD_NUMBER = 3;
+      private Symbol() {
+        detectedLanguages_ = java.util.Collections.emptyList();
+      }
 
-      @SuppressWarnings("serial")
-      private java.util.List
-          bodyRows_;
-      /**
-       *
-       *
-       * 
-       * Body rows of the table.
-       * 

-       *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow body_rows = 3;
-       * 
-       */
       @java.lang.Override
-      public java.util.List
-          getBodyRowsList() {
-        return bodyRows_;
+      @SuppressWarnings({"unused"})
+      protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+        return new Symbol();
       }
-      /**
-       *
-       *
-       * 
-       * Body rows of the table.
-       * 

-       *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow body_rows = 3;
-       * 
-       */
+
+      public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+        return com.google.cloud.documentai.v1beta2.DocumentProto
+            .internal_static_google_cloud_documentai_v1beta2_Document_Page_Symbol_descriptor;
+      }
+
       @java.lang.Override
-      public java.util.List<
-              ? extends com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRowOrBuilder>
-          getBodyRowsOrBuilderList() {
-        return bodyRows_;
+      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+          internalGetFieldAccessorTable() {
+        return com.google.cloud.documentai.v1beta2.DocumentProto
+            .internal_static_google_cloud_documentai_v1beta2_Document_Page_Symbol_fieldAccessorTable
+            .ensureFieldAccessorsInitialized(
+                com.google.cloud.documentai.v1beta2.Document.Page.Symbol.class,
+                com.google.cloud.documentai.v1beta2.Document.Page.Symbol.Builder.class);
       }
+
+      public static final int LAYOUT_FIELD_NUMBER = 1;
+      private com.google.cloud.documentai.v1beta2.Document.Page.Layout layout_;
       /**
        *
        *
        * 
-       * Body rows of the table.
+       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+       * [Symbol][google.cloud.documentai.v1beta2.Document.Page.Symbol].
        * 

        *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow body_rows = 3;
-       * 
+       * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+       *
+       * @return Whether the layout field is set.
        */
       @java.lang.Override
-      public int getBodyRowsCount() {
-        return bodyRows_.size();
+      public boolean hasLayout() {
+        return layout_ != null;
       }
       /**
        *
        *
        * 
-       * Body rows of the table.
+       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+       * [Symbol][google.cloud.documentai.v1beta2.Document.Page.Symbol].
        * 

        *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow body_rows = 3;
-       * 
+       * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+       *
+       * @return The layout.
        */
       @java.lang.Override
-      public com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow getBodyRows(
-          int index) {
-        return bodyRows_.get(index);
+      public com.google.cloud.documentai.v1beta2.Document.Page.Layout getLayout() {
+        return layout_ == null
+            ? com.google.cloud.documentai.v1beta2.Document.Page.Layout.getDefaultInstance()
+            : layout_;
       }
       /**
        *
        *
        * 
-       * Body rows of the table.
+       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+       * [Symbol][google.cloud.documentai.v1beta2.Document.Page.Symbol].
        * 

        *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow body_rows = 3;
-       * 
+       * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
        */
       @java.lang.Override
-      public com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRowOrBuilder
-          getBodyRowsOrBuilder(int index) {
-        return bodyRows_.get(index);
+      public com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder
+          getLayoutOrBuilder() {
+        return layout_ == null
+            ? com.google.cloud.documentai.v1beta2.Document.Page.Layout.getDefaultInstance()
+            : layout_;
       }
 
-      public static final int DETECTED_LANGUAGES_FIELD_NUMBER = 4;
+      public static final int DETECTED_LANGUAGES_FIELD_NUMBER = 2;
 
       @SuppressWarnings("serial")
       private java.util.List
@@ -19879,7 +21986,7 @@ public com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow getBodyR
        * 

        *
        * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
        * 
        */
       @java.lang.Override
@@ -19895,7 +22002,7 @@ public com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow getBodyR
        * 
        *
        * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
        * 
        */
       @java.lang.Override
@@ -19912,7 +22019,7 @@ public com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow getBodyR
        * 
        *
        * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
        * 
        */
       @java.lang.Override
@@ -19927,7 +22034,7 @@ public int getDetectedLanguagesCount() {
        * 
        *
        * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
        * 
        */
       @java.lang.Override
@@ -19943,7 +22050,7 @@ public int getDetectedLanguagesCount() {
        * 
        *
        * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
        * 
        */
       @java.lang.Override
@@ -19969,14 +22076,8 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
         if (layout_ != null) {
           output.writeMessage(1, getLayout());
         }
-        for (int i = 0; i < headerRows_.size(); i++) {
-          output.writeMessage(2, headerRows_.get(i));
-        }
-        for (int i = 0; i < bodyRows_.size(); i++) {
-          output.writeMessage(3, bodyRows_.get(i));
-        }
         for (int i = 0; i < detectedLanguages_.size(); i++) {
-          output.writeMessage(4, detectedLanguages_.get(i));
+          output.writeMessage(2, detectedLanguages_.get(i));
         }
         getUnknownFields().writeTo(output);
       }
@@ -19990,16 +22091,10 @@ public int getSerializedSize() {
         if (layout_ != null) {
           size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, getLayout());
         }
-        for (int i = 0; i < headerRows_.size(); i++) {
-          size += com.google.protobuf.CodedOutputStream.computeMessageSize(2, headerRows_.get(i));
-        }
-        for (int i = 0; i < bodyRows_.size(); i++) {
-          size += com.google.protobuf.CodedOutputStream.computeMessageSize(3, bodyRows_.get(i));
-        }
         for (int i = 0; i < detectedLanguages_.size(); i++) {
           size +=
               com.google.protobuf.CodedOutputStream.computeMessageSize(
-                  4, detectedLanguages_.get(i));
+                  2, detectedLanguages_.get(i));
         }
         size += getUnknownFields().getSerializedSize();
         memoizedSize = size;
@@ -20011,18 +22106,16 @@ public boolean equals(final java.lang.Object obj) {
         if (obj == this) {
           return true;
         }
-        if (!(obj instanceof com.google.cloud.documentai.v1beta2.Document.Page.Table)) {
+        if (!(obj instanceof com.google.cloud.documentai.v1beta2.Document.Page.Symbol)) {
           return super.equals(obj);
         }
-        com.google.cloud.documentai.v1beta2.Document.Page.Table other =
-            (com.google.cloud.documentai.v1beta2.Document.Page.Table) obj;
+        com.google.cloud.documentai.v1beta2.Document.Page.Symbol other =
+            (com.google.cloud.documentai.v1beta2.Document.Page.Symbol) obj;
 
         if (hasLayout() != other.hasLayout()) return false;
         if (hasLayout()) {
           if (!getLayout().equals(other.getLayout())) return false;
         }
-        if (!getHeaderRowsList().equals(other.getHeaderRowsList())) return false;
-        if (!getBodyRowsList().equals(other.getBodyRowsList())) return false;
         if (!getDetectedLanguagesList().equals(other.getDetectedLanguagesList())) return false;
         if (!getUnknownFields().equals(other.getUnknownFields())) return false;
         return true;
@@ -20039,14 +22132,6 @@ public int hashCode() {
           hash = (37 * hash) + LAYOUT_FIELD_NUMBER;
           hash = (53 * hash) + getLayout().hashCode();
         }
-        if (getHeaderRowsCount() > 0) {
-          hash = (37 * hash) + HEADER_ROWS_FIELD_NUMBER;
-          hash = (53 * hash) + getHeaderRowsList().hashCode();
-        }
-        if (getBodyRowsCount() > 0) {
-          hash = (37 * hash) + BODY_ROWS_FIELD_NUMBER;
-          hash = (53 * hash) + getBodyRowsList().hashCode();
-        }
         if (getDetectedLanguagesCount() > 0) {
           hash = (37 * hash) + DETECTED_LANGUAGES_FIELD_NUMBER;
           hash = (53 * hash) + getDetectedLanguagesList().hashCode();
@@ -20056,71 +22141,71 @@ public int hashCode() {
         return hash;
       }
 
-      public static com.google.cloud.documentai.v1beta2.Document.Page.Table parseFrom(
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Symbol parseFrom(
           java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
         return PARSER.parseFrom(data);
       }
 
-      public static com.google.cloud.documentai.v1beta2.Document.Page.Table parseFrom(
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Symbol parseFrom(
           java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws com.google.protobuf.InvalidProtocolBufferException {
         return PARSER.parseFrom(data, extensionRegistry);
       }
 
-      public static com.google.cloud.documentai.v1beta2.Document.Page.Table parseFrom(
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Symbol parseFrom(
           com.google.protobuf.ByteString data)
           throws com.google.protobuf.InvalidProtocolBufferException {
         return PARSER.parseFrom(data);
       }
 
-      public static com.google.cloud.documentai.v1beta2.Document.Page.Table parseFrom(
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Symbol parseFrom(
           com.google.protobuf.ByteString data,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws com.google.protobuf.InvalidProtocolBufferException {
         return PARSER.parseFrom(data, extensionRegistry);
       }
 
-      public static com.google.cloud.documentai.v1beta2.Document.Page.Table parseFrom(byte[] data)
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Symbol parseFrom(byte[] data)
           throws com.google.protobuf.InvalidProtocolBufferException {
         return PARSER.parseFrom(data);
       }
 
-      public static com.google.cloud.documentai.v1beta2.Document.Page.Table parseFrom(
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Symbol parseFrom(
           byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws com.google.protobuf.InvalidProtocolBufferException {
         return PARSER.parseFrom(data, extensionRegistry);
       }
 
-      public static com.google.cloud.documentai.v1beta2.Document.Page.Table parseFrom(
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Symbol parseFrom(
           java.io.InputStream input) throws java.io.IOException {
         return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
       }
 
-      public static com.google.cloud.documentai.v1beta2.Document.Page.Table parseFrom(
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Symbol parseFrom(
           java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws java.io.IOException {
         return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
             PARSER, input, extensionRegistry);
       }
 
-      public static com.google.cloud.documentai.v1beta2.Document.Page.Table parseDelimitedFrom(
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Symbol parseDelimitedFrom(
           java.io.InputStream input) throws java.io.IOException {
         return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
       }
 
-      public static com.google.cloud.documentai.v1beta2.Document.Page.Table parseDelimitedFrom(
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Symbol parseDelimitedFrom(
           java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws java.io.IOException {
         return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
             PARSER, input, extensionRegistry);
       }
 
-      public static com.google.cloud.documentai.v1beta2.Document.Page.Table parseFrom(
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Symbol parseFrom(
           com.google.protobuf.CodedInputStream input) throws java.io.IOException {
         return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
       }
 
-      public static com.google.cloud.documentai.v1beta2.Document.Page.Table parseFrom(
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Symbol parseFrom(
           com.google.protobuf.CodedInputStream input,
           com.google.protobuf.ExtensionRegistryLite extensionRegistry)
           throws java.io.IOException {
@@ -20138,7 +22223,7 @@ public static Builder newBuilder() {
       }
 
       public static Builder newBuilder(
-          com.google.cloud.documentai.v1beta2.Document.Page.Table prototype) {
+          com.google.cloud.documentai.v1beta2.Document.Page.Symbol prototype) {
         return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
       }
 
@@ -20157,32 +22242,32 @@ protected Builder newBuilderForType(
        *
        *
        * 
-       * A table representation similar to HTML table structure.
+       * A detected symbol.
        * 

        *
-       * Protobuf type {@code google.cloud.documentai.v1beta2.Document.Page.Table}
+       * Protobuf type {@code google.cloud.documentai.v1beta2.Document.Page.Symbol}
        */
       public static final class Builder
           extends com.google.protobuf.GeneratedMessageV3.Builder
           implements
-          // @@protoc_insertion_point(builder_implements:google.cloud.documentai.v1beta2.Document.Page.Table)
-          com.google.cloud.documentai.v1beta2.Document.Page.TableOrBuilder {
+          // @@protoc_insertion_point(builder_implements:google.cloud.documentai.v1beta2.Document.Page.Symbol)
+          com.google.cloud.documentai.v1beta2.Document.Page.SymbolOrBuilder {
         public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
           return com.google.cloud.documentai.v1beta2.DocumentProto
-              .internal_static_google_cloud_documentai_v1beta2_Document_Page_Table_descriptor;
+              .internal_static_google_cloud_documentai_v1beta2_Document_Page_Symbol_descriptor;
         }
 
         @java.lang.Override
         protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
             internalGetFieldAccessorTable() {
           return com.google.cloud.documentai.v1beta2.DocumentProto
-              .internal_static_google_cloud_documentai_v1beta2_Document_Page_Table_fieldAccessorTable
+              .internal_static_google_cloud_documentai_v1beta2_Document_Page_Symbol_fieldAccessorTable
               .ensureFieldAccessorsInitialized(
-                  com.google.cloud.documentai.v1beta2.Document.Page.Table.class,
-                  com.google.cloud.documentai.v1beta2.Document.Page.Table.Builder.class);
+                  com.google.cloud.documentai.v1beta2.Document.Page.Symbol.class,
+                  com.google.cloud.documentai.v1beta2.Document.Page.Symbol.Builder.class);
         }
 
-        // Construct using com.google.cloud.documentai.v1beta2.Document.Page.Table.newBuilder()
+        // Construct using com.google.cloud.documentai.v1beta2.Document.Page.Symbol.newBuilder()
         private Builder() {}
 
         private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
@@ -20198,44 +22283,31 @@ public Builder clear() {
             layoutBuilder_.dispose();
             layoutBuilder_ = null;
           }
-          if (headerRowsBuilder_ == null) {
-            headerRows_ = java.util.Collections.emptyList();
-          } else {
-            headerRows_ = null;
-            headerRowsBuilder_.clear();
-          }
-          bitField0_ = (bitField0_ & ~0x00000002);
-          if (bodyRowsBuilder_ == null) {
-            bodyRows_ = java.util.Collections.emptyList();
-          } else {
-            bodyRows_ = null;
-            bodyRowsBuilder_.clear();
-          }
-          bitField0_ = (bitField0_ & ~0x00000004);
           if (detectedLanguagesBuilder_ == null) {
             detectedLanguages_ = java.util.Collections.emptyList();
           } else {
             detectedLanguages_ = null;
             detectedLanguagesBuilder_.clear();
           }
-          bitField0_ = (bitField0_ & ~0x00000008);
+          bitField0_ = (bitField0_ & ~0x00000002);
           return this;
         }
 
         @java.lang.Override
         public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
           return com.google.cloud.documentai.v1beta2.DocumentProto
-              .internal_static_google_cloud_documentai_v1beta2_Document_Page_Table_descriptor;
+              .internal_static_google_cloud_documentai_v1beta2_Document_Page_Symbol_descriptor;
         }
 
         @java.lang.Override
-        public com.google.cloud.documentai.v1beta2.Document.Page.Table getDefaultInstanceForType() {
-          return com.google.cloud.documentai.v1beta2.Document.Page.Table.getDefaultInstance();
+        public com.google.cloud.documentai.v1beta2.Document.Page.Symbol
+            getDefaultInstanceForType() {
+          return com.google.cloud.documentai.v1beta2.Document.Page.Symbol.getDefaultInstance();
         }
 
         @java.lang.Override
-        public com.google.cloud.documentai.v1beta2.Document.Page.Table build() {
-          com.google.cloud.documentai.v1beta2.Document.Page.Table result = buildPartial();
+        public com.google.cloud.documentai.v1beta2.Document.Page.Symbol build() {
+          com.google.cloud.documentai.v1beta2.Document.Page.Symbol result = buildPartial();
           if (!result.isInitialized()) {
             throw newUninitializedMessageException(result);
           }
@@ -20243,9 +22315,9 @@ public com.google.cloud.documentai.v1beta2.Document.Page.Table build() {
         }
 
         @java.lang.Override
-        public com.google.cloud.documentai.v1beta2.Document.Page.Table buildPartial() {
-          com.google.cloud.documentai.v1beta2.Document.Page.Table result =
-              new com.google.cloud.documentai.v1beta2.Document.Page.Table(this);
+        public com.google.cloud.documentai.v1beta2.Document.Page.Symbol buildPartial() {
+          com.google.cloud.documentai.v1beta2.Document.Page.Symbol result =
+              new com.google.cloud.documentai.v1beta2.Document.Page.Symbol(this);
           buildPartialRepeatedFields(result);
           if (bitField0_ != 0) {
             buildPartial0(result);
@@ -20255,29 +22327,11 @@ public com.google.cloud.documentai.v1beta2.Document.Page.Table buildPartial() {
         }
 
         private void buildPartialRepeatedFields(
-            com.google.cloud.documentai.v1beta2.Document.Page.Table result) {
-          if (headerRowsBuilder_ == null) {
-            if (((bitField0_ & 0x00000002) != 0)) {
-              headerRows_ = java.util.Collections.unmodifiableList(headerRows_);
-              bitField0_ = (bitField0_ & ~0x00000002);
-            }
-            result.headerRows_ = headerRows_;
-          } else {
-            result.headerRows_ = headerRowsBuilder_.build();
-          }
-          if (bodyRowsBuilder_ == null) {
-            if (((bitField0_ & 0x00000004) != 0)) {
-              bodyRows_ = java.util.Collections.unmodifiableList(bodyRows_);
-              bitField0_ = (bitField0_ & ~0x00000004);
-            }
-            result.bodyRows_ = bodyRows_;
-          } else {
-            result.bodyRows_ = bodyRowsBuilder_.build();
-          }
+            com.google.cloud.documentai.v1beta2.Document.Page.Symbol result) {
           if (detectedLanguagesBuilder_ == null) {
-            if (((bitField0_ & 0x00000008) != 0)) {
+            if (((bitField0_ & 0x00000002) != 0)) {
               detectedLanguages_ = java.util.Collections.unmodifiableList(detectedLanguages_);
-              bitField0_ = (bitField0_ & ~0x00000008);
+              bitField0_ = (bitField0_ & ~0x00000002);
             }
             result.detectedLanguages_ = detectedLanguages_;
           } else {
@@ -20285,7 +22339,8 @@ private void buildPartialRepeatedFields(
           }
         }
 
-        private void buildPartial0(com.google.cloud.documentai.v1beta2.Document.Page.Table result) {
+        private void buildPartial0(
+            com.google.cloud.documentai.v1beta2.Document.Page.Symbol result) {
           int from_bitField0_ = bitField0_;
           if (((from_bitField0_ & 0x00000001) != 0)) {
             result.layout_ = layoutBuilder_ == null ? layout_ : layoutBuilder_.build();
@@ -20329,79 +22384,26 @@ public Builder addRepeatedField(
 
         @java.lang.Override
         public Builder mergeFrom(com.google.protobuf.Message other) {
-          if (other instanceof com.google.cloud.documentai.v1beta2.Document.Page.Table) {
-            return mergeFrom((com.google.cloud.documentai.v1beta2.Document.Page.Table) other);
+          if (other instanceof com.google.cloud.documentai.v1beta2.Document.Page.Symbol) {
+            return mergeFrom((com.google.cloud.documentai.v1beta2.Document.Page.Symbol) other);
           } else {
             super.mergeFrom(other);
             return this;
           }
         }
 
-        public Builder mergeFrom(com.google.cloud.documentai.v1beta2.Document.Page.Table other) {
-          if (other == com.google.cloud.documentai.v1beta2.Document.Page.Table.getDefaultInstance())
+        public Builder mergeFrom(com.google.cloud.documentai.v1beta2.Document.Page.Symbol other) {
+          if (other
+              == com.google.cloud.documentai.v1beta2.Document.Page.Symbol.getDefaultInstance())
             return this;
           if (other.hasLayout()) {
             mergeLayout(other.getLayout());
           }
-          if (headerRowsBuilder_ == null) {
-            if (!other.headerRows_.isEmpty()) {
-              if (headerRows_.isEmpty()) {
-                headerRows_ = other.headerRows_;
-                bitField0_ = (bitField0_ & ~0x00000002);
-              } else {
-                ensureHeaderRowsIsMutable();
-                headerRows_.addAll(other.headerRows_);
-              }
-              onChanged();
-            }
-          } else {
-            if (!other.headerRows_.isEmpty()) {
-              if (headerRowsBuilder_.isEmpty()) {
-                headerRowsBuilder_.dispose();
-                headerRowsBuilder_ = null;
-                headerRows_ = other.headerRows_;
-                bitField0_ = (bitField0_ & ~0x00000002);
-                headerRowsBuilder_ =
-                    com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders
-                        ? getHeaderRowsFieldBuilder()
-                        : null;
-              } else {
-                headerRowsBuilder_.addAllMessages(other.headerRows_);
-              }
-            }
-          }
-          if (bodyRowsBuilder_ == null) {
-            if (!other.bodyRows_.isEmpty()) {
-              if (bodyRows_.isEmpty()) {
-                bodyRows_ = other.bodyRows_;
-                bitField0_ = (bitField0_ & ~0x00000004);
-              } else {
-                ensureBodyRowsIsMutable();
-                bodyRows_.addAll(other.bodyRows_);
-              }
-              onChanged();
-            }
-          } else {
-            if (!other.bodyRows_.isEmpty()) {
-              if (bodyRowsBuilder_.isEmpty()) {
-                bodyRowsBuilder_.dispose();
-                bodyRowsBuilder_ = null;
-                bodyRows_ = other.bodyRows_;
-                bitField0_ = (bitField0_ & ~0x00000004);
-                bodyRowsBuilder_ =
-                    com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders
-                        ? getBodyRowsFieldBuilder()
-                        : null;
-              } else {
-                bodyRowsBuilder_.addAllMessages(other.bodyRows_);
-              }
-            }
-          }
           if (detectedLanguagesBuilder_ == null) {
             if (!other.detectedLanguages_.isEmpty()) {
               if (detectedLanguages_.isEmpty()) {
                 detectedLanguages_ = other.detectedLanguages_;
-                bitField0_ = (bitField0_ & ~0x00000008);
+                bitField0_ = (bitField0_ & ~0x00000002);
               } else {
                 ensureDetectedLanguagesIsMutable();
                 detectedLanguages_.addAll(other.detectedLanguages_);
@@ -20414,7 +22416,7 @@ public Builder mergeFrom(com.google.cloud.documentai.v1beta2.Document.Page.Table
                 detectedLanguagesBuilder_.dispose();
                 detectedLanguagesBuilder_ = null;
                 detectedLanguages_ = other.detectedLanguages_;
-                bitField0_ = (bitField0_ & ~0x00000008);
+                bitField0_ = (bitField0_ & ~0x00000002);
                 detectedLanguagesBuilder_ =
                     com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders
                         ? getDetectedLanguagesFieldBuilder()
@@ -20457,36 +22459,6 @@ public Builder mergeFrom(
                     break;
                   } // case 10
                 case 18:
-                  {
-                    com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow m =
-                        input.readMessage(
-                            com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow
-                                .parser(),
-                            extensionRegistry);
-                    if (headerRowsBuilder_ == null) {
-                      ensureHeaderRowsIsMutable();
-                      headerRows_.add(m);
-                    } else {
-                      headerRowsBuilder_.addMessage(m);
-                    }
-                    break;
-                  } // case 18
-                case 26:
-                  {
-                    com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow m =
-                        input.readMessage(
-                            com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow
-                                .parser(),
-                            extensionRegistry);
-                    if (bodyRowsBuilder_ == null) {
-                      ensureBodyRowsIsMutable();
-                      bodyRows_.add(m);
-                    } else {
-                      bodyRowsBuilder_.addMessage(m);
-                    }
-                    break;
-                  } // case 26
-                case 34:
                   {
                     com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage m =
                         input.readMessage(
@@ -20500,7 +22472,7 @@ public Builder mergeFrom(
                       detectedLanguagesBuilder_.addMessage(m);
                     }
                     break;
-                  } // case 34
+                  } // case 18
                 default:
                   {
                     if (!super.parseUnknownField(input, extensionRegistry, tag)) {
@@ -20530,7 +22502,8 @@ public Builder mergeFrom(
          *
          *
          * 
-         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [Table][google.cloud.documentai.v1beta2.Document.Page.Table].
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+         * [Symbol][google.cloud.documentai.v1beta2.Document.Page.Symbol].
          * 

          *
          * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
@@ -20544,7 +22517,8 @@ public boolean hasLayout() {
          *
          *
          * 
-         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [Table][google.cloud.documentai.v1beta2.Document.Page.Table].
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+         * [Symbol][google.cloud.documentai.v1beta2.Document.Page.Symbol].
          * 

          *
          * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
@@ -20564,7 +22538,8 @@ public com.google.cloud.documentai.v1beta2.Document.Page.Layout getLayout() {
          *
          *
          * 
-         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [Table][google.cloud.documentai.v1beta2.Document.Page.Table].
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+         * [Symbol][google.cloud.documentai.v1beta2.Document.Page.Symbol].
          * 

          *
          * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
@@ -20586,7 +22561,8 @@ public Builder setLayout(com.google.cloud.documentai.v1beta2.Document.Page.Layou
          *
          *
          * 
-         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [Table][google.cloud.documentai.v1beta2.Document.Page.Table].
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+         * [Symbol][google.cloud.documentai.v1beta2.Document.Page.Symbol].
          * 

          *
          * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
@@ -20606,7 +22582,8 @@ public Builder setLayout(
          *
          *
          * 
-         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [Table][google.cloud.documentai.v1beta2.Document.Page.Table].
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+         * [Symbol][google.cloud.documentai.v1beta2.Document.Page.Symbol].
          * 

          *
          * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
@@ -20633,7 +22610,8 @@ public Builder mergeLayout(com.google.cloud.documentai.v1beta2.Document.Page.Lay
          *
          *
          * 
-         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [Table][google.cloud.documentai.v1beta2.Document.Page.Table].
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+         * [Symbol][google.cloud.documentai.v1beta2.Document.Page.Symbol].
          * 

          *
          * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
@@ -20652,7 +22630,8 @@ public Builder clearLayout() {
          *
          *
          * 
-         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [Table][google.cloud.documentai.v1beta2.Document.Page.Table].
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+         * [Symbol][google.cloud.documentai.v1beta2.Document.Page.Symbol].
          * 

          *
          * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
@@ -20666,7 +22645,8 @@ public com.google.cloud.documentai.v1beta2.Document.Page.Layout.Builder getLayou
          *
          *
          * 
-         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [Table][google.cloud.documentai.v1beta2.Document.Page.Table].
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+         * [Symbol][google.cloud.documentai.v1beta2.Document.Page.Symbol].
          * 

          *
          * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
@@ -20685,7 +22665,8 @@ public com.google.cloud.documentai.v1beta2.Document.Page.Layout.Builder getLayou
          *
          *
          * 
-         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [Table][google.cloud.documentai.v1beta2.Document.Page.Table].
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+         * [Symbol][google.cloud.documentai.v1beta2.Document.Page.Symbol].
          * 

          *
          * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
@@ -20707,102 +22688,103 @@ public com.google.cloud.documentai.v1beta2.Document.Page.Layout.Builder getLayou
           return layoutBuilder_;
         }
 
-        private java.util.List
-            headerRows_ = java.util.Collections.emptyList();
+        private java.util.List
+            detectedLanguages_ = java.util.Collections.emptyList();
 
-        private void ensureHeaderRowsIsMutable() {
+        private void ensureDetectedLanguagesIsMutable() {
           if (!((bitField0_ & 0x00000002) != 0)) {
-            headerRows_ =
+            detectedLanguages_ =
                 new java.util.ArrayList<
-                    com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow>(headerRows_);
+                    com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage>(
+                    detectedLanguages_);
             bitField0_ |= 0x00000002;
           }
         }
 
         private com.google.protobuf.RepeatedFieldBuilderV3<
-                com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow,
-                com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow.Builder,
-                com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRowOrBuilder>
-            headerRowsBuilder_;
+                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage,
+                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder,
+                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>
+            detectedLanguagesBuilder_;
 
         /**
          *
          *
          * 
-         * Header rows of the table.
+         * A list of detected languages together with confidence.
          * 

          *
          * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow header_rows = 2;
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
          * 
          */
-        public java.util.List
-            getHeaderRowsList() {
-          if (headerRowsBuilder_ == null) {
-            return java.util.Collections.unmodifiableList(headerRows_);
+        public java.util.List
+            getDetectedLanguagesList() {
+          if (detectedLanguagesBuilder_ == null) {
+            return java.util.Collections.unmodifiableList(detectedLanguages_);
           } else {
-            return headerRowsBuilder_.getMessageList();
+            return detectedLanguagesBuilder_.getMessageList();
           }
         }
         /**
          *
          *
          * 
-         * Header rows of the table.
+         * A list of detected languages together with confidence.
          * 

          *
          * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow header_rows = 2;
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
          * 
          */
-        public int getHeaderRowsCount() {
-          if (headerRowsBuilder_ == null) {
-            return headerRows_.size();
+        public int getDetectedLanguagesCount() {
+          if (detectedLanguagesBuilder_ == null) {
+            return detectedLanguages_.size();
           } else {
-            return headerRowsBuilder_.getCount();
+            return detectedLanguagesBuilder_.getCount();
           }
         }
         /**
          *
          *
          * 
-         * Header rows of the table.
+         * A list of detected languages together with confidence.
          * 

          *
          * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow header_rows = 2;
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
          * 
          */
-        public com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow getHeaderRows(
-            int index) {
-          if (headerRowsBuilder_ == null) {
-            return headerRows_.get(index);
+        public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage
+            getDetectedLanguages(int index) {
+          if (detectedLanguagesBuilder_ == null) {
+            return detectedLanguages_.get(index);
           } else {
-            return headerRowsBuilder_.getMessage(index);
+            return detectedLanguagesBuilder_.getMessage(index);
           }
         }
         /**
          *
          *
          * 
-         * Header rows of the table.
+         * A list of detected languages together with confidence.
          * 

          *
          * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow header_rows = 2;
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
          * 
          */
-        public Builder setHeaderRows(
-            int index, com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow value) {
-          if (headerRowsBuilder_ == null) {
+        public Builder setDetectedLanguages(
+            int index, com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value) {
+          if (detectedLanguagesBuilder_ == null) {
             if (value == null) {
               throw new NullPointerException();
             }
-            ensureHeaderRowsIsMutable();
-            headerRows_.set(index, value);
+            ensureDetectedLanguagesIsMutable();
+            detectedLanguages_.set(index, value);
             onChanged();
           } else {
-            headerRowsBuilder_.setMessage(index, value);
+            detectedLanguagesBuilder_.setMessage(index, value);
           }
           return this;
         }
@@ -20810,23 +22792,23 @@ public Builder setHeaderRows(
          *
          *
          * 
-         * Header rows of the table.
+         * A list of detected languages together with confidence.
          * 

          *
          * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow header_rows = 2;
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
          * 
          */
-        public Builder setHeaderRows(
+        public Builder setDetectedLanguages(
             int index,
-            com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow.Builder
+            com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
                 builderForValue) {
-          if (headerRowsBuilder_ == null) {
-            ensureHeaderRowsIsMutable();
-            headerRows_.set(index, builderForValue.build());
+          if (detectedLanguagesBuilder_ == null) {
+            ensureDetectedLanguagesIsMutable();
+            detectedLanguages_.set(index, builderForValue.build());
             onChanged();
           } else {
-            headerRowsBuilder_.setMessage(index, builderForValue.build());
+            detectedLanguagesBuilder_.setMessage(index, builderForValue.build());
           }
           return this;
         }
@@ -20834,24 +22816,24 @@ public Builder setHeaderRows(
          *
          *
          * 
-         * Header rows of the table.
+         * A list of detected languages together with confidence.
          * 

          *
          * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow header_rows = 2;
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
          * 
          */
-        public Builder addHeaderRows(
-            com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow value) {
-          if (headerRowsBuilder_ == null) {
+        public Builder addDetectedLanguages(
+            com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value) {
+          if (detectedLanguagesBuilder_ == null) {
             if (value == null) {
               throw new NullPointerException();
             }
-            ensureHeaderRowsIsMutable();
-            headerRows_.add(value);
+            ensureDetectedLanguagesIsMutable();
+            detectedLanguages_.add(value);
             onChanged();
           } else {
-            headerRowsBuilder_.addMessage(value);
+            detectedLanguagesBuilder_.addMessage(value);
           }
           return this;
         }
@@ -20859,24 +22841,24 @@ public Builder addHeaderRows(
          *
          *
          * 
-         * Header rows of the table.
+         * A list of detected languages together with confidence.
          * 

          *
          * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow header_rows = 2;
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
          * 
          */
-        public Builder addHeaderRows(
-            int index, com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow value) {
-          if (headerRowsBuilder_ == null) {
+        public Builder addDetectedLanguages(
+            int index, com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value) {
+          if (detectedLanguagesBuilder_ == null) {
             if (value == null) {
               throw new NullPointerException();
             }
-            ensureHeaderRowsIsMutable();
-            headerRows_.add(index, value);
+            ensureDetectedLanguagesIsMutable();
+            detectedLanguages_.add(index, value);
             onChanged();
           } else {
-            headerRowsBuilder_.addMessage(index, value);
+            detectedLanguagesBuilder_.addMessage(index, value);
           }
           return this;
         }
@@ -20884,22 +22866,22 @@ public Builder addHeaderRows(
          *
          *
          * 
-         * Header rows of the table.
+         * A list of detected languages together with confidence.
          * 

          *
          * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow header_rows = 2;
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
          * 
          */
-        public Builder addHeaderRows(
-            com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow.Builder
+        public Builder addDetectedLanguages(
+            com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
                 builderForValue) {
-          if (headerRowsBuilder_ == null) {
-            ensureHeaderRowsIsMutable();
-            headerRows_.add(builderForValue.build());
+          if (detectedLanguagesBuilder_ == null) {
+            ensureDetectedLanguagesIsMutable();
+            detectedLanguages_.add(builderForValue.build());
             onChanged();
           } else {
-            headerRowsBuilder_.addMessage(builderForValue.build());
+            detectedLanguagesBuilder_.addMessage(builderForValue.build());
           }
           return this;
         }
@@ -20907,23 +22889,23 @@ public Builder addHeaderRows(
          *
          *
          * 
-         * Header rows of the table.
+         * A list of detected languages together with confidence.
          * 

          *
          * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow header_rows = 2;
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
          * 
          */
-        public Builder addHeaderRows(
+        public Builder addDetectedLanguages(
             int index,
-            com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow.Builder
+            com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
                 builderForValue) {
-          if (headerRowsBuilder_ == null) {
-            ensureHeaderRowsIsMutable();
-            headerRows_.add(index, builderForValue.build());
+          if (detectedLanguagesBuilder_ == null) {
+            ensureDetectedLanguagesIsMutable();
+            detectedLanguages_.add(index, builderForValue.build());
             onChanged();
           } else {
-            headerRowsBuilder_.addMessage(index, builderForValue.build());
+            detectedLanguagesBuilder_.addMessage(index, builderForValue.build());
           }
           return this;
         }
@@ -20931,23 +22913,23 @@ public Builder addHeaderRows(
          *
          *
          * 
-         * Header rows of the table.
+         * A list of detected languages together with confidence.
          * 

          *
          * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow header_rows = 2;
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
          * 
          */
-        public Builder addAllHeaderRows(
+        public Builder addAllDetectedLanguages(
             java.lang.Iterable<
-                    ? extends com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow>
+                    ? extends com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage>
                 values) {
-          if (headerRowsBuilder_ == null) {
-            ensureHeaderRowsIsMutable();
-            com.google.protobuf.AbstractMessageLite.Builder.addAll(values, headerRows_);
+          if (detectedLanguagesBuilder_ == null) {
+            ensureDetectedLanguagesIsMutable();
+            com.google.protobuf.AbstractMessageLite.Builder.addAll(values, detectedLanguages_);
             onChanged();
           } else {
-            headerRowsBuilder_.addAllMessages(values);
+            detectedLanguagesBuilder_.addAllMessages(values);
           }
           return this;
         }
@@ -20955,20 +22937,20 @@ public Builder addAllHeaderRows(
          *
          *
          * 
-         * Header rows of the table.
+         * A list of detected languages together with confidence.
          * 

          *
          * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow header_rows = 2;
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
          * 
          */
-        public Builder clearHeaderRows() {
-          if (headerRowsBuilder_ == null) {
-            headerRows_ = java.util.Collections.emptyList();
+        public Builder clearDetectedLanguages() {
+          if (detectedLanguagesBuilder_ == null) {
+            detectedLanguages_ = java.util.Collections.emptyList();
             bitField0_ = (bitField0_ & ~0x00000002);
             onChanged();
           } else {
-            headerRowsBuilder_.clear();
+            detectedLanguagesBuilder_.clear();
           }
           return this;
         }
@@ -20976,20 +22958,20 @@ public Builder clearHeaderRows() {
          *
          *
          * 
-         * Header rows of the table.
+         * A list of detected languages together with confidence.
          * 

          *
          * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow header_rows = 2;
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
          * 
          */
-        public Builder removeHeaderRows(int index) {
-          if (headerRowsBuilder_ == null) {
-            ensureHeaderRowsIsMutable();
-            headerRows_.remove(index);
+        public Builder removeDetectedLanguages(int index) {
+          if (detectedLanguagesBuilder_ == null) {
+            ensureDetectedLanguagesIsMutable();
+            detectedLanguages_.remove(index);
             onChanged();
           } else {
-            headerRowsBuilder_.remove(index);
+            detectedLanguagesBuilder_.remove(index);
           }
           return this;
         }
@@ -20997,392 +22979,24890 @@ public Builder removeHeaderRows(int index) {
          *
          *
          * 
-         * Header rows of the table.
+         * A list of detected languages together with confidence.
          * 

          *
          * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow header_rows = 2;
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
          * 
          */
-        public com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow.Builder
-            getHeaderRowsBuilder(int index) {
-          return getHeaderRowsFieldBuilder().getBuilder(index);
+        public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
+            getDetectedLanguagesBuilder(int index) {
+          return getDetectedLanguagesFieldBuilder().getBuilder(index);
         }
         /**
          *
          *
          * 
-         * Header rows of the table.
+         * A list of detected languages together with confidence.
          * 

          *
          * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow header_rows = 2;
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
          * 
          */
-        public com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRowOrBuilder
-            getHeaderRowsOrBuilder(int index) {
-          if (headerRowsBuilder_ == null) {
-            return headerRows_.get(index);
+        public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder
+            getDetectedLanguagesOrBuilder(int index) {
+          if (detectedLanguagesBuilder_ == null) {
+            return detectedLanguages_.get(index);
           } else {
-            return headerRowsBuilder_.getMessageOrBuilder(index);
+            return detectedLanguagesBuilder_.getMessageOrBuilder(index);
           }
         }
         /**
          *
          *
          * 
-         * Header rows of the table.
+         * A list of detected languages together with confidence.
          * 

          *
          * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow header_rows = 2;
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
          * 
          */
         public java.util.List<
-                ? extends com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRowOrBuilder>
-            getHeaderRowsOrBuilderList() {
-          if (headerRowsBuilder_ != null) {
-            return headerRowsBuilder_.getMessageOrBuilderList();
+                ? extends
+                    com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>
+            getDetectedLanguagesOrBuilderList() {
+          if (detectedLanguagesBuilder_ != null) {
+            return detectedLanguagesBuilder_.getMessageOrBuilderList();
           } else {
-            return java.util.Collections.unmodifiableList(headerRows_);
+            return java.util.Collections.unmodifiableList(detectedLanguages_);
           }
         }
         /**
          *
          *
          * 
-         * Header rows of the table.
+         * A list of detected languages together with confidence.
          * 

          *
          * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow header_rows = 2;
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
          * 
          */
-        public com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow.Builder
-            addHeaderRowsBuilder() {
-          return getHeaderRowsFieldBuilder()
+        public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
+            addDetectedLanguagesBuilder() {
+          return getDetectedLanguagesFieldBuilder()
               .addBuilder(
-                  com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow
+                  com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage
                       .getDefaultInstance());
         }
         /**
          *
          *
          * 
-         * Header rows of the table.
+         * A list of detected languages together with confidence.
          * 

          *
          * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow header_rows = 2;
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
          * 
          */
-        public com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow.Builder
-            addHeaderRowsBuilder(int index) {
-          return getHeaderRowsFieldBuilder()
+        public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
+            addDetectedLanguagesBuilder(int index) {
+          return getDetectedLanguagesFieldBuilder()
               .addBuilder(
                   index,
-                  com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow
+                  com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage
                       .getDefaultInstance());
         }
         /**
          *
          *
          * 
-         * Header rows of the table.
+         * A list of detected languages together with confidence.
          * 

          *
          * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow header_rows = 2;
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 2;
          * 
          */
         public java.util.List<
-                com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow.Builder>
-            getHeaderRowsBuilderList() {
-          return getHeaderRowsFieldBuilder().getBuilderList();
+                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder>
+            getDetectedLanguagesBuilderList() {
+          return getDetectedLanguagesFieldBuilder().getBuilderList();
         }
 
         private com.google.protobuf.RepeatedFieldBuilderV3<
-                com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow,
-                com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow.Builder,
-                com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRowOrBuilder>
-            getHeaderRowsFieldBuilder() {
-          if (headerRowsBuilder_ == null) {
-            headerRowsBuilder_ =
+                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage,
+                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder,
+                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>
+            getDetectedLanguagesFieldBuilder() {
+          if (detectedLanguagesBuilder_ == null) {
+            detectedLanguagesBuilder_ =
                 new com.google.protobuf.RepeatedFieldBuilderV3<
-                    com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow,
-                    com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow.Builder,
-                    com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRowOrBuilder>(
-                    headerRows_,
+                    com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage,
+                    com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder,
+                    com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>(
+                    detectedLanguages_,
                     ((bitField0_ & 0x00000002) != 0),
                     getParentForChildren(),
                     isClean());
-            headerRows_ = null;
+            detectedLanguages_ = null;
           }
-          return headerRowsBuilder_;
+          return detectedLanguagesBuilder_;
         }
 
-        private java.util.List
-            bodyRows_ = java.util.Collections.emptyList();
+        @java.lang.Override
+        public final Builder setUnknownFields(
+            final com.google.protobuf.UnknownFieldSet unknownFields) {
+          return super.setUnknownFields(unknownFields);
+        }
 
-        private void ensureBodyRowsIsMutable() {
-          if (!((bitField0_ & 0x00000004) != 0)) {
-            bodyRows_ =
-                new java.util.ArrayList<
-                    com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow>(bodyRows_);
-            bitField0_ |= 0x00000004;
-          }
+        @java.lang.Override
+        public final Builder mergeUnknownFields(
+            final com.google.protobuf.UnknownFieldSet unknownFields) {
+          return super.mergeUnknownFields(unknownFields);
         }
 
-        private com.google.protobuf.RepeatedFieldBuilderV3<
-                com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow,
-                com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow.Builder,
-                com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRowOrBuilder>
-            bodyRowsBuilder_;
+        // @@protoc_insertion_point(builder_scope:google.cloud.documentai.v1beta2.Document.Page.Symbol)
+      }
 
-        /**
-         *
-         *
-         * 
-         * Body rows of the table.
-         * 

-         *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow body_rows = 3;
-         * 
-         */
-        public java.util.List
-            getBodyRowsList() {
-          if (bodyRowsBuilder_ == null) {
-            return java.util.Collections.unmodifiableList(bodyRows_);
-          } else {
-            return bodyRowsBuilder_.getMessageList();
-          }
-        }
-        /**
-         *
-         *
-         * 
-         * Body rows of the table.
-         * 

-         *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow body_rows = 3;
-         * 
-         */
-        public int getBodyRowsCount() {
-          if (bodyRowsBuilder_ == null) {
-            return bodyRows_.size();
-          } else {
-            return bodyRowsBuilder_.getCount();
-          }
-        }
-        /**
-         *
-         *
-         * 
-         * Body rows of the table.
-         * 

-         *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow body_rows = 3;
-         * 
-         */
-        public com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow getBodyRows(
-            int index) {
-          if (bodyRowsBuilder_ == null) {
-            return bodyRows_.get(index);
-          } else {
-            return bodyRowsBuilder_.getMessage(index);
-          }
-        }
-        /**
-         *
-         *
-         * 
-         * Body rows of the table.
-         * 

-         *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow body_rows = 3;
-         * 
-         */
-        public Builder setBodyRows(
-            int index, com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow value) {
-          if (bodyRowsBuilder_ == null) {
-            if (value == null) {
-              throw new NullPointerException();
-            }
-            ensureBodyRowsIsMutable();
-            bodyRows_.set(index, value);
-            onChanged();
-          } else {
-            bodyRowsBuilder_.setMessage(index, value);
-          }
-          return this;
-        }
-        /**
-         *
-         *
-         * 
-         * Body rows of the table.
-         * 

-         *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow body_rows = 3;
-         * 
-         */
-        public Builder setBodyRows(
-            int index,
-            com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow.Builder
-                builderForValue) {
-          if (bodyRowsBuilder_ == null) {
-            ensureBodyRowsIsMutable();
-            bodyRows_.set(index, builderForValue.build());
-            onChanged();
-          } else {
-            bodyRowsBuilder_.setMessage(index, builderForValue.build());
-          }
-          return this;
-        }
-        /**
-         *
-         *
-         * 
-         * Body rows of the table.
-         * 

-         *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow body_rows = 3;
-         * 
-         */
-        public Builder addBodyRows(
-            com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow value) {
-          if (bodyRowsBuilder_ == null) {
-            if (value == null) {
-              throw new NullPointerException();
-            }
-            ensureBodyRowsIsMutable();
-            bodyRows_.add(value);
-            onChanged();
-          } else {
-            bodyRowsBuilder_.addMessage(value);
-          }
-          return this;
-        }
-        /**
-         *
-         *
-         * 
-         * Body rows of the table.
-         * 

-         *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow body_rows = 3;
-         * 
-         */
-        public Builder addBodyRows(
-            int index, com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow value) {
-          if (bodyRowsBuilder_ == null) {
-            if (value == null) {
-              throw new NullPointerException();
+      // @@protoc_insertion_point(class_scope:google.cloud.documentai.v1beta2.Document.Page.Symbol)
+      private static final com.google.cloud.documentai.v1beta2.Document.Page.Symbol
+          DEFAULT_INSTANCE;
+
+      static {
+        DEFAULT_INSTANCE = new com.google.cloud.documentai.v1beta2.Document.Page.Symbol();
+      }
+
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Symbol getDefaultInstance() {
+        return DEFAULT_INSTANCE;
+      }
+
+      private static final com.google.protobuf.Parser PARSER =
+          new com.google.protobuf.AbstractParser() {
+            @java.lang.Override
+            public Symbol parsePartialFrom(
+                com.google.protobuf.CodedInputStream input,
+                com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+                throws com.google.protobuf.InvalidProtocolBufferException {
+              Builder builder = newBuilder();
+              try {
+                builder.mergeFrom(input, extensionRegistry);
+              } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+                throw e.setUnfinishedMessage(builder.buildPartial());
+              } catch (com.google.protobuf.UninitializedMessageException e) {
+                throw e.asInvalidProtocolBufferException()
+                    .setUnfinishedMessage(builder.buildPartial());
+              } catch (java.io.IOException e) {
+                throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                    .setUnfinishedMessage(builder.buildPartial());
+              }
+              return builder.buildPartial();
             }
-            ensureBodyRowsIsMutable();
-            bodyRows_.add(index, value);
-            onChanged();
-          } else {
-            bodyRowsBuilder_.addMessage(index, value);
-          }
-          return this;
-        }
-        /**
-         *
-         *
-         * 
-         * Body rows of the table.
-         * 

-         *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow body_rows = 3;
-         * 
-         */
-        public Builder addBodyRows(
-            com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow.Builder
-                builderForValue) {
-          if (bodyRowsBuilder_ == null) {
+          };
+
+      public static com.google.protobuf.Parser parser() {
+        return PARSER;
+      }
+
+      @java.lang.Override
+      public com.google.protobuf.Parser getParserForType() {
+        return PARSER;
+      }
+
+      @java.lang.Override
+      public com.google.cloud.documentai.v1beta2.Document.Page.Symbol getDefaultInstanceForType() {
+        return DEFAULT_INSTANCE;
+      }
+    }
+
+    public interface VisualElementOrBuilder
+        extends
+        // @@protoc_insertion_point(interface_extends:google.cloud.documentai.v1beta2.Document.Page.VisualElement)
+        com.google.protobuf.MessageOrBuilder {
+
+      /**
+       *
+       *
+       * 
+       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+       * [VisualElement][google.cloud.documentai.v1beta2.Document.Page.VisualElement].
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+       *
+       * @return Whether the layout field is set.
+       */
+      boolean hasLayout();
+      /**
+       *
+       *
+       * 
+       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+       * [VisualElement][google.cloud.documentai.v1beta2.Document.Page.VisualElement].
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+       *
+       * @return The layout.
+       */
+      com.google.cloud.documentai.v1beta2.Document.Page.Layout getLayout();
+      /**
+       *
+       *
+       * 
+       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+       * [VisualElement][google.cloud.documentai.v1beta2.Document.Page.VisualElement].
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+       */
+      com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder getLayoutOrBuilder();
+
+      /**
+       *
+       *
+       * 
+       * Type of the
+       * [VisualElement][google.cloud.documentai.v1beta2.Document.Page.VisualElement].
+       * 

+       *
+       * string type = 2;
+       *
+       * @return The type.
+       */
+      java.lang.String getType();
+      /**
+       *
+       *
+       * 
+       * Type of the
+       * [VisualElement][google.cloud.documentai.v1beta2.Document.Page.VisualElement].
+       * 

+       *
+       * string type = 2;
+       *
+       * @return The bytes for type.
+       */
+      com.google.protobuf.ByteString getTypeBytes();
+
+      /**
+       *
+       *
+       * 
+       * A list of detected languages together with confidence.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
+       * 
+       */
+      java.util.List
+          getDetectedLanguagesList();
+      /**
+       *
+       *
+       * 
+       * A list of detected languages together with confidence.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
+       * 
+       */
+      com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage getDetectedLanguages(
+          int index);
+      /**
+       *
+       *
+       * 
+       * A list of detected languages together with confidence.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
+       * 
+       */
+      int getDetectedLanguagesCount();
+      /**
+       *
+       *
+       * 
+       * A list of detected languages together with confidence.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
+       * 
+       */
+      java.util.List<
+              ? extends com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>
+          getDetectedLanguagesOrBuilderList();
+      /**
+       *
+       *
+       * 
+       * A list of detected languages together with confidence.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
+       * 
+       */
+      com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder
+          getDetectedLanguagesOrBuilder(int index);
+    }
+    /**
+     *
+     *
+     * 
+     * Detected non-text visual elements e.g. checkbox, signature etc. on the
+     * page.
+     * 

+     *
+     * Protobuf type {@code google.cloud.documentai.v1beta2.Document.Page.VisualElement}
+     */
+    public static final class VisualElement extends com.google.protobuf.GeneratedMessageV3
+        implements
+        // @@protoc_insertion_point(message_implements:google.cloud.documentai.v1beta2.Document.Page.VisualElement)
+        VisualElementOrBuilder {
+      private static final long serialVersionUID = 0L;
+      // Use VisualElement.newBuilder() to construct.
+      private VisualElement(com.google.protobuf.GeneratedMessageV3.Builder builder) {
+        super(builder);
+      }
+
+      private VisualElement() {
+        type_ = "";
+        detectedLanguages_ = java.util.Collections.emptyList();
+      }
+
+      @java.lang.Override
+      @SuppressWarnings({"unused"})
+      protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+        return new VisualElement();
+      }
+
+      public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+        return com.google.cloud.documentai.v1beta2.DocumentProto
+            .internal_static_google_cloud_documentai_v1beta2_Document_Page_VisualElement_descriptor;
+      }
+
+      @java.lang.Override
+      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+          internalGetFieldAccessorTable() {
+        return com.google.cloud.documentai.v1beta2.DocumentProto
+            .internal_static_google_cloud_documentai_v1beta2_Document_Page_VisualElement_fieldAccessorTable
+            .ensureFieldAccessorsInitialized(
+                com.google.cloud.documentai.v1beta2.Document.Page.VisualElement.class,
+                com.google.cloud.documentai.v1beta2.Document.Page.VisualElement.Builder.class);
+      }
+
+      public static final int LAYOUT_FIELD_NUMBER = 1;
+      private com.google.cloud.documentai.v1beta2.Document.Page.Layout layout_;
+      /**
+       *
+       *
+       * 
+       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+       * [VisualElement][google.cloud.documentai.v1beta2.Document.Page.VisualElement].
+       * 

+       *
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+         * [VisualElement][google.cloud.documentai.v1beta2.Document.Page.VisualElement].
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+         */
+        public Builder setLayout(com.google.cloud.documentai.v1beta2.Document.Page.Layout value) {
+          if (layoutBuilder_ == null) {
+            if (value == null) {
+              throw new NullPointerException();
+            }
+            layout_ = value;
+          } else {
+            layoutBuilder_.setMessage(value);
+          }
+          bitField0_ |= 0x00000001;
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+         * [VisualElement][google.cloud.documentai.v1beta2.Document.Page.VisualElement].
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+         */
+        public Builder setLayout(
+            com.google.cloud.documentai.v1beta2.Document.Page.Layout.Builder builderForValue) {
+          if (layoutBuilder_ == null) {
+            layout_ = builderForValue.build();
+          } else {
+            layoutBuilder_.setMessage(builderForValue.build());
+          }
+          bitField0_ |= 0x00000001;
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+         * [VisualElement][google.cloud.documentai.v1beta2.Document.Page.VisualElement].
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+         */
+        public Builder mergeLayout(com.google.cloud.documentai.v1beta2.Document.Page.Layout value) {
+          if (layoutBuilder_ == null) {
+            if (((bitField0_ & 0x00000001) != 0)
+                && layout_ != null
+                && layout_
+                    != com.google.cloud.documentai.v1beta2.Document.Page.Layout
+                        .getDefaultInstance()) {
+              getLayoutBuilder().mergeFrom(value);
+            } else {
+              layout_ = value;
+            }
+          } else {
+            layoutBuilder_.mergeFrom(value);
+          }
+          bitField0_ |= 0x00000001;
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+         * [VisualElement][google.cloud.documentai.v1beta2.Document.Page.VisualElement].
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+         */
+        public Builder clearLayout() {
+          bitField0_ = (bitField0_ & ~0x00000001);
+          layout_ = null;
+          if (layoutBuilder_ != null) {
+            layoutBuilder_.dispose();
+            layoutBuilder_ = null;
+          }
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+         * [VisualElement][google.cloud.documentai.v1beta2.Document.Page.VisualElement].
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+         */
+        public com.google.cloud.documentai.v1beta2.Document.Page.Layout.Builder getLayoutBuilder() {
+          bitField0_ |= 0x00000001;
+          onChanged();
+          return getLayoutFieldBuilder().getBuilder();
+        }
+        /**
+         *
+         *
+         * 
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+         * [VisualElement][google.cloud.documentai.v1beta2.Document.Page.VisualElement].
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+         */
+        public com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder
+            getLayoutOrBuilder() {
+          if (layoutBuilder_ != null) {
+            return layoutBuilder_.getMessageOrBuilder();
+          } else {
+            return layout_ == null
+                ? com.google.cloud.documentai.v1beta2.Document.Page.Layout.getDefaultInstance()
+                : layout_;
+          }
+        }
+        /**
+         *
+         *
+         * 
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+         * [VisualElement][google.cloud.documentai.v1beta2.Document.Page.VisualElement].
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+         */
+        private com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.documentai.v1beta2.Document.Page.Layout,
+                com.google.cloud.documentai.v1beta2.Document.Page.Layout.Builder,
+                com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder>
+            getLayoutFieldBuilder() {
+          if (layoutBuilder_ == null) {
+            layoutBuilder_ =
+                new com.google.protobuf.SingleFieldBuilderV3<
+                    com.google.cloud.documentai.v1beta2.Document.Page.Layout,
+                    com.google.cloud.documentai.v1beta2.Document.Page.Layout.Builder,
+                    com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder>(
+                    getLayout(), getParentForChildren(), isClean());
+            layout_ = null;
+          }
+          return layoutBuilder_;
+        }
+
+        private java.lang.Object type_ = "";
+        /**
+         *
+         *
+         * 
+         * Type of the
+         * [VisualElement][google.cloud.documentai.v1beta2.Document.Page.VisualElement].
+         * 

+         *
+         * string type = 2;
+         *
+         * @return The type.
+         */
+        public java.lang.String getType() {
+          java.lang.Object ref = type_;
+          if (!(ref instanceof java.lang.String)) {
+            com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+            java.lang.String s = bs.toStringUtf8();
+            type_ = s;
+            return s;
+          } else {
+            return (java.lang.String) ref;
+          }
+        }
+        /**
+         *
+         *
+         * 
+         * Type of the
+         * [VisualElement][google.cloud.documentai.v1beta2.Document.Page.VisualElement].
+         * 

+         *
+         * string type = 2;
+         *
+         * @return The bytes for type.
+         */
+        public com.google.protobuf.ByteString getTypeBytes() {
+          java.lang.Object ref = type_;
+          if (ref instanceof String) {
+            com.google.protobuf.ByteString b =
+                com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+            type_ = b;
+            return b;
+          } else {
+            return (com.google.protobuf.ByteString) ref;
+          }
+        }
+        /**
+         *
+         *
+         * 
+         * Type of the
+         * [VisualElement][google.cloud.documentai.v1beta2.Document.Page.VisualElement].
+         * 

+         *
+         * string type = 2;
+         *
+         * @param value The type to set.
+         * @return This builder for chaining.
+         */
+        public Builder setType(java.lang.String value) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          type_ = value;
+          bitField0_ |= 0x00000002;
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * Type of the
+         * [VisualElement][google.cloud.documentai.v1beta2.Document.Page.VisualElement].
+         * 

+         *
+         * string type = 2;
+         *
+         * @return This builder for chaining.
+         */
+        public Builder clearType() {
+          type_ = getDefaultInstance().getType();
+          bitField0_ = (bitField0_ & ~0x00000002);
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * Type of the
+         * [VisualElement][google.cloud.documentai.v1beta2.Document.Page.VisualElement].
+         * 

+         *
+         * string type = 2;
+         *
+         * @param value The bytes for type to set.
+         * @return This builder for chaining.
+         */
+        public Builder setTypeBytes(com.google.protobuf.ByteString value) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          checkByteStringIsUtf8(value);
+          type_ = value;
+          bitField0_ |= 0x00000002;
+          onChanged();
+          return this;
+        }
+
+        private java.util.List
+            detectedLanguages_ = java.util.Collections.emptyList();
+
+        private void ensureDetectedLanguagesIsMutable() {
+          if (!((bitField0_ & 0x00000004) != 0)) {
+            detectedLanguages_ =
+                new java.util.ArrayList<
+                    com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage>(
+                    detectedLanguages_);
+            bitField0_ |= 0x00000004;
+          }
+        }
+
+        private com.google.protobuf.RepeatedFieldBuilderV3<
+                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage,
+                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder,
+                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>
+            detectedLanguagesBuilder_;
+
+        /**
+         *
+         *
+         * 
+         * A list of detected languages together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
+         * 
+         */
+        public java.util.List
+            getDetectedLanguagesList() {
+          if (detectedLanguagesBuilder_ == null) {
+            return java.util.Collections.unmodifiableList(detectedLanguages_);
+          } else {
+            return detectedLanguagesBuilder_.getMessageList();
+          }
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
+         * 
+         */
+        public int getDetectedLanguagesCount() {
+          if (detectedLanguagesBuilder_ == null) {
+            return detectedLanguages_.size();
+          } else {
+            return detectedLanguagesBuilder_.getCount();
+          }
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
+         * 
+         */
+        public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage
+            getDetectedLanguages(int index) {
+          if (detectedLanguagesBuilder_ == null) {
+            return detectedLanguages_.get(index);
+          } else {
+            return detectedLanguagesBuilder_.getMessage(index);
+          }
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
+         * 
+         */
+        public Builder setDetectedLanguages(
+            int index, com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value) {
+          if (detectedLanguagesBuilder_ == null) {
+            if (value == null) {
+              throw new NullPointerException();
+            }
+            ensureDetectedLanguagesIsMutable();
+            detectedLanguages_.set(index, value);
+            onChanged();
+          } else {
+            detectedLanguagesBuilder_.setMessage(index, value);
+          }
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
+         * 
+         */
+        public Builder setDetectedLanguages(
+            int index,
+            com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
+                builderForValue) {
+          if (detectedLanguagesBuilder_ == null) {
+            ensureDetectedLanguagesIsMutable();
+            detectedLanguages_.set(index, builderForValue.build());
+            onChanged();
+          } else {
+            detectedLanguagesBuilder_.setMessage(index, builderForValue.build());
+          }
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
+         * 
+         */
+        public Builder addDetectedLanguages(
+            com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value) {
+          if (detectedLanguagesBuilder_ == null) {
+            if (value == null) {
+              throw new NullPointerException();
+            }
+            ensureDetectedLanguagesIsMutable();
+            detectedLanguages_.add(value);
+            onChanged();
+          } else {
+            detectedLanguagesBuilder_.addMessage(value);
+          }
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
+         * 
+         */
+        public Builder addDetectedLanguages(
+            int index, com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value) {
+          if (detectedLanguagesBuilder_ == null) {
+            if (value == null) {
+              throw new NullPointerException();
+            }
+            ensureDetectedLanguagesIsMutable();
+            detectedLanguages_.add(index, value);
+            onChanged();
+          } else {
+            detectedLanguagesBuilder_.addMessage(index, value);
+          }
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
+         * 
+         */
+        public Builder addDetectedLanguages(
+            com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
+                builderForValue) {
+          if (detectedLanguagesBuilder_ == null) {
+            ensureDetectedLanguagesIsMutable();
+            detectedLanguages_.add(builderForValue.build());
+            onChanged();
+          } else {
+            detectedLanguagesBuilder_.addMessage(builderForValue.build());
+          }
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
+         * 
+         */
+        public Builder addDetectedLanguages(
+            int index,
+            com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
+                builderForValue) {
+          if (detectedLanguagesBuilder_ == null) {
+            ensureDetectedLanguagesIsMutable();
+            detectedLanguages_.add(index, builderForValue.build());
+            onChanged();
+          } else {
+            detectedLanguagesBuilder_.addMessage(index, builderForValue.build());
+          }
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
+         * 
+         */
+        public Builder addAllDetectedLanguages(
+            java.lang.Iterable<
+                    ? extends com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage>
+                values) {
+          if (detectedLanguagesBuilder_ == null) {
+            ensureDetectedLanguagesIsMutable();
+            com.google.protobuf.AbstractMessageLite.Builder.addAll(values, detectedLanguages_);
+            onChanged();
+          } else {
+            detectedLanguagesBuilder_.addAllMessages(values);
+          }
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
+         * 
+         */
+        public Builder clearDetectedLanguages() {
+          if (detectedLanguagesBuilder_ == null) {
+            detectedLanguages_ = java.util.Collections.emptyList();
+            bitField0_ = (bitField0_ & ~0x00000004);
+            onChanged();
+          } else {
+            detectedLanguagesBuilder_.clear();
+          }
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
+         * 
+         */
+        public Builder removeDetectedLanguages(int index) {
+          if (detectedLanguagesBuilder_ == null) {
+            ensureDetectedLanguagesIsMutable();
+            detectedLanguages_.remove(index);
+            onChanged();
+          } else {
+            detectedLanguagesBuilder_.remove(index);
+          }
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
+         * 
+         */
+        public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
+            getDetectedLanguagesBuilder(int index) {
+          return getDetectedLanguagesFieldBuilder().getBuilder(index);
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
+         * 
+         */
+        public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder
+            getDetectedLanguagesOrBuilder(int index) {
+          if (detectedLanguagesBuilder_ == null) {
+            return detectedLanguages_.get(index);
+          } else {
+            return detectedLanguagesBuilder_.getMessageOrBuilder(index);
+          }
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
+         * 
+         */
+        public java.util.List<
+                ? extends
+                    com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>
+            getDetectedLanguagesOrBuilderList() {
+          if (detectedLanguagesBuilder_ != null) {
+            return detectedLanguagesBuilder_.getMessageOrBuilderList();
+          } else {
+            return java.util.Collections.unmodifiableList(detectedLanguages_);
+          }
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
+         * 
+         */
+        public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
+            addDetectedLanguagesBuilder() {
+          return getDetectedLanguagesFieldBuilder()
+              .addBuilder(
+                  com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage
+                      .getDefaultInstance());
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
+         * 
+         */
+        public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
+            addDetectedLanguagesBuilder(int index) {
+          return getDetectedLanguagesFieldBuilder()
+              .addBuilder(
+                  index,
+                  com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage
+                      .getDefaultInstance());
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 3;
+         * 
+         */
+        public java.util.List<
+                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder>
+            getDetectedLanguagesBuilderList() {
+          return getDetectedLanguagesFieldBuilder().getBuilderList();
+        }
+
+        private com.google.protobuf.RepeatedFieldBuilderV3<
+                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage,
+                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder,
+                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>
+            getDetectedLanguagesFieldBuilder() {
+          if (detectedLanguagesBuilder_ == null) {
+            detectedLanguagesBuilder_ =
+                new com.google.protobuf.RepeatedFieldBuilderV3<
+                    com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage,
+                    com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder,
+                    com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>(
+                    detectedLanguages_,
+                    ((bitField0_ & 0x00000004) != 0),
+                    getParentForChildren(),
+                    isClean());
+            detectedLanguages_ = null;
+          }
+          return detectedLanguagesBuilder_;
+        }
+
+        @java.lang.Override
+        public final Builder setUnknownFields(
+            final com.google.protobuf.UnknownFieldSet unknownFields) {
+          return super.setUnknownFields(unknownFields);
+        }
+
+        @java.lang.Override
+        public final Builder mergeUnknownFields(
+            final com.google.protobuf.UnknownFieldSet unknownFields) {
+          return super.mergeUnknownFields(unknownFields);
+        }
+
+        // @@protoc_insertion_point(builder_scope:google.cloud.documentai.v1beta2.Document.Page.VisualElement)
+      }
+
+      // @@protoc_insertion_point(class_scope:google.cloud.documentai.v1beta2.Document.Page.VisualElement)
+      private static final com.google.cloud.documentai.v1beta2.Document.Page.VisualElement
+          DEFAULT_INSTANCE;
+
+      static {
+        DEFAULT_INSTANCE = new com.google.cloud.documentai.v1beta2.Document.Page.VisualElement();
+      }
+
+      public static com.google.cloud.documentai.v1beta2.Document.Page.VisualElement
+          getDefaultInstance() {
+        return DEFAULT_INSTANCE;
+      }
+
+      private static final com.google.protobuf.Parser PARSER =
+          new com.google.protobuf.AbstractParser() {
+            @java.lang.Override
+            public VisualElement parsePartialFrom(
+                com.google.protobuf.CodedInputStream input,
+                com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+                throws com.google.protobuf.InvalidProtocolBufferException {
+              Builder builder = newBuilder();
+              try {
+                builder.mergeFrom(input, extensionRegistry);
+              } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+                throw e.setUnfinishedMessage(builder.buildPartial());
+              } catch (com.google.protobuf.UninitializedMessageException e) {
+                throw e.asInvalidProtocolBufferException()
+                    .setUnfinishedMessage(builder.buildPartial());
+              } catch (java.io.IOException e) {
+                throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                    .setUnfinishedMessage(builder.buildPartial());
+              }
+              return builder.buildPartial();
+            }
+          };
+
+      public static com.google.protobuf.Parser parser() {
+        return PARSER;
+      }
+
+      @java.lang.Override
+      public com.google.protobuf.Parser getParserForType() {
+        return PARSER;
+      }
+
+      @java.lang.Override
+      public com.google.cloud.documentai.v1beta2.Document.Page.VisualElement
+          getDefaultInstanceForType() {
+        return DEFAULT_INSTANCE;
+      }
+    }
+
+    public interface TableOrBuilder
+        extends
+        // @@protoc_insertion_point(interface_extends:google.cloud.documentai.v1beta2.Document.Page.Table)
+        com.google.protobuf.MessageOrBuilder {
+
+      /**
+       *
+       *
+       * 
+       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+       * [Table][google.cloud.documentai.v1beta2.Document.Page.Table].
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+       *
+       * @return Whether the layout field is set.
+       */
+      boolean hasLayout();
+      /**
+       *
+       *
+       * 
+       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+       * [Table][google.cloud.documentai.v1beta2.Document.Page.Table].
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+       *
+       * @return The layout.
+       */
+      com.google.cloud.documentai.v1beta2.Document.Page.Layout getLayout();
+      /**
+       *
+       *
+       * 
+       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+       * [Table][google.cloud.documentai.v1beta2.Document.Page.Table].
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+       */
+      com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder getLayoutOrBuilder();
+
+      /**
+       *
+       *
+       * 
+       * Header rows of the table.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow header_rows = 2;
+       * 
+       */
+      java.util.List
+          getHeaderRowsList();
+      /**
+       *
+       *
+       * 
+       * Header rows of the table.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow header_rows = 2;
+       * 
+       */
+      com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow getHeaderRows(int index);
+      /**
+       *
+       *
+       * 
+       * Header rows of the table.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow header_rows = 2;
+       * 
+       */
+      int getHeaderRowsCount();
+      /**
+       *
+       *
+       * 
+       * Header rows of the table.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow header_rows = 2;
+       * 
+       */
+      java.util.List<
+              ? extends com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRowOrBuilder>
+          getHeaderRowsOrBuilderList();
+      /**
+       *
+       *
+       * 
+       * Header rows of the table.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow header_rows = 2;
+       * 
+       */
+      com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRowOrBuilder
+          getHeaderRowsOrBuilder(int index);
+
+      /**
+       *
+       *
+       * 
+       * Body rows of the table.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow body_rows = 3;
+       * 
+       */
+      java.util.List
+          getBodyRowsList();
+      /**
+       *
+       *
+       * 
+       * Body rows of the table.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow body_rows = 3;
+       * 
+       */
+      com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow getBodyRows(int index);
+      /**
+       *
+       *
+       * 
+       * Body rows of the table.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow body_rows = 3;
+       * 
+       */
+      int getBodyRowsCount();
+      /**
+       *
+       *
+       * 
+       * Body rows of the table.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow body_rows = 3;
+       * 
+       */
+      java.util.List<
+              ? extends com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRowOrBuilder>
+          getBodyRowsOrBuilderList();
+      /**
+       *
+       *
+       * 
+       * Body rows of the table.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow body_rows = 3;
+       * 
+       */
+      com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRowOrBuilder
+          getBodyRowsOrBuilder(int index);
+
+      /**
+       *
+       *
+       * 
+       * A list of detected languages together with confidence.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
+       * 
+       */
+      java.util.List
+          getDetectedLanguagesList();
+      /**
+       *
+       *
+       * 
+       * A list of detected languages together with confidence.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
+       * 
+       */
+      com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage getDetectedLanguages(
+          int index);
+      /**
+       *
+       *
+       * 
+       * A list of detected languages together with confidence.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
+       * 
+       */
+      int getDetectedLanguagesCount();
+      /**
+       *
+       *
+       * 
+       * A list of detected languages together with confidence.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
+       * 
+       */
+      java.util.List<
+              ? extends com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>
+          getDetectedLanguagesOrBuilderList();
+      /**
+       *
+       *
+       * 
+       * A list of detected languages together with confidence.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
+       * 
+       */
+      com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder
+          getDetectedLanguagesOrBuilder(int index);
+
+      /**
+       *
+       *
+       * 
+       * The history of this table.
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 5 [deprecated = true];
+       * 
+       *
+       * @deprecated google.cloud.documentai.v1beta2.Document.Page.Table.provenance is deprecated.
+       *     See google/cloud/documentai/v1beta2/document.proto;l=421
+       * @return Whether the provenance field is set.
+       */
+      @java.lang.Deprecated
+      boolean hasProvenance();
+      /**
+       *
+       *
+       * 
+       * The history of this table.
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 5 [deprecated = true];
+       * 
+       *
+       * @deprecated google.cloud.documentai.v1beta2.Document.Page.Table.provenance is deprecated.
+       *     See google/cloud/documentai/v1beta2/document.proto;l=421
+       * @return The provenance.
+       */
+      @java.lang.Deprecated
+      com.google.cloud.documentai.v1beta2.Document.Provenance getProvenance();
+      /**
+       *
+       *
+       * 
+       * The history of this table.
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 5 [deprecated = true];
+       * 
+       */
+      @java.lang.Deprecated
+      com.google.cloud.documentai.v1beta2.Document.ProvenanceOrBuilder getProvenanceOrBuilder();
+    }
+    /**
+     *
+     *
+     * 
+     * A table representation similar to HTML table structure.
+     * 

+     *
+     * Protobuf type {@code google.cloud.documentai.v1beta2.Document.Page.Table}
+     */
+    public static final class Table extends com.google.protobuf.GeneratedMessageV3
+        implements
+        // @@protoc_insertion_point(message_implements:google.cloud.documentai.v1beta2.Document.Page.Table)
+        TableOrBuilder {
+      private static final long serialVersionUID = 0L;
+      // Use Table.newBuilder() to construct.
+      private Table(com.google.protobuf.GeneratedMessageV3.Builder builder) {
+        super(builder);
+      }
+
+      private Table() {
+        headerRows_ = java.util.Collections.emptyList();
+        bodyRows_ = java.util.Collections.emptyList();
+        detectedLanguages_ = java.util.Collections.emptyList();
+      }
+
+      @java.lang.Override
+      @SuppressWarnings({"unused"})
+      protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+        return new Table();
+      }
+
+      public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+        return com.google.cloud.documentai.v1beta2.DocumentProto
+            .internal_static_google_cloud_documentai_v1beta2_Document_Page_Table_descriptor;
+      }
+
+      @java.lang.Override
+      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+          internalGetFieldAccessorTable() {
+        return com.google.cloud.documentai.v1beta2.DocumentProto
+            .internal_static_google_cloud_documentai_v1beta2_Document_Page_Table_fieldAccessorTable
+            .ensureFieldAccessorsInitialized(
+                com.google.cloud.documentai.v1beta2.Document.Page.Table.class,
+                com.google.cloud.documentai.v1beta2.Document.Page.Table.Builder.class);
+      }
+
+      public interface TableRowOrBuilder
+          extends
+          // @@protoc_insertion_point(interface_extends:google.cloud.documentai.v1beta2.Document.Page.Table.TableRow)
+          com.google.protobuf.MessageOrBuilder {
+
+        /**
+         *
+         *
+         * 
+         * Cells that make up this row.
+         * 

+         *
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableCell cells = 1;
+         * 
+         */
+        java.util.List
+            getCellsList();
+        /**
+         *
+         *
+         * 
+         * Cells that make up this row.
+         * 

+         *
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableCell cells = 1;
+         * 
+         */
+        com.google.cloud.documentai.v1beta2.Document.Page.Table.TableCell getCells(int index);
+        /**
+         *
+         *
+         * 
+         * Cells that make up this row.
+         * 

+         *
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableCell cells = 1;
+         * 
+         */
+        int getCellsCount();
+        /**
+         *
+         *
+         * 
+         * Cells that make up this row.
+         * 

+         *
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableCell cells = 1;
+         * 
+         */
+        java.util.List<
+                ? extends
+                    com.google.cloud.documentai.v1beta2.Document.Page.Table.TableCellOrBuilder>
+            getCellsOrBuilderList();
+        /**
+         *
+         *
+         * 
+         * Cells that make up this row.
+         * 

+         *
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableCell cells = 1;
+         * 
+         */
+        com.google.cloud.documentai.v1beta2.Document.Page.Table.TableCellOrBuilder
+            getCellsOrBuilder(int index);
+      }
+      /**
+       *
+       *
+       * 
+       * A row of table cells.
+       * 

+       *
+       * Protobuf type {@code google.cloud.documentai.v1beta2.Document.Page.Table.TableRow}
+       */
+      public static final class TableRow extends com.google.protobuf.GeneratedMessageV3
+          implements
+          // @@protoc_insertion_point(message_implements:google.cloud.documentai.v1beta2.Document.Page.Table.TableRow)
+          TableRowOrBuilder {
+        private static final long serialVersionUID = 0L;
+        // Use TableRow.newBuilder() to construct.
+        private TableRow(com.google.protobuf.GeneratedMessageV3.Builder builder) {
+          super(builder);
+        }
+
+        private TableRow() {
+          cells_ = java.util.Collections.emptyList();
+        }
+
+        @java.lang.Override
+        @SuppressWarnings({"unused"})
+        protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+          return new TableRow();
+        }
+
+        public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+          return com.google.cloud.documentai.v1beta2.DocumentProto
+              .internal_static_google_cloud_documentai_v1beta2_Document_Page_Table_TableRow_descriptor;
+        }
+
+        @java.lang.Override
+        protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+            internalGetFieldAccessorTable() {
+          return com.google.cloud.documentai.v1beta2.DocumentProto
+              .internal_static_google_cloud_documentai_v1beta2_Document_Page_Table_TableRow_fieldAccessorTable
+              .ensureFieldAccessorsInitialized(
+                  com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow.class,
+                  com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow.Builder.class);
+        }
+
+        public static final int CELLS_FIELD_NUMBER = 1;
+
+        @SuppressWarnings("serial")
+        private java.util.List
+            cells_;
+        /**
+         *
+         *
+         * 
+         * Cells that make up this row.
+         * 

+         *
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableCell cells = 1;
+         * 
+         */
+        @java.lang.Override
+        public java.util.List
+            getCellsList() {
+          return cells_;
+        }
+        /**
+         *
+         *
+         * 
+         * Cells that make up this row.
+         * 

+         *
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableCell cells = 1;
+         * 
+         */
+        @java.lang.Override
+        public java.util.List<
+                ? extends
+                    com.google.cloud.documentai.v1beta2.Document.Page.Table.TableCellOrBuilder>
+            getCellsOrBuilderList() {
+          return cells_;
+        }
+        /**
+         *
+         *
+         * 
+         * Cells that make up this row.
+         * 

+         *
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableCell cells = 1;
+         * 
+         */
+        @java.lang.Override
+        public int getCellsCount() {
+          return cells_.size();
+        }
+        /**
+         *
+         *
+         * 
+         * Cells that make up this row.
+         * 

+         *
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableCell cells = 1;
+         * 
+         */
+        @java.lang.Override
+        public com.google.cloud.documentai.v1beta2.Document.Page.Table.TableCell getCells(
+            int index) {
+          return cells_.get(index);
+        }
+        /**
+         *
+         *
+         * 
+         * Cells that make up this row.
+         * 

+         *
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableCell cells = 1;
+         * 
+         */
+        @java.lang.Override
+        public com.google.cloud.documentai.v1beta2.Document.Page.Table.TableCellOrBuilder
+            getCellsOrBuilder(int index) {
+          return cells_.get(index);
+        }
+
+        private byte memoizedIsInitialized = -1;
+
+        @java.lang.Override
+        public final boolean isInitialized() {
+          byte isInitialized = memoizedIsInitialized;
+          if (isInitialized == 1) return true;
+          if (isInitialized == 0) return false;
+
+          memoizedIsInitialized = 1;
+          return true;
+        }
+
+        @java.lang.Override
+        public void writeTo(com.google.protobuf.CodedOutputStream output)
+            throws java.io.IOException {
+          for (int i = 0; i < cells_.size(); i++) {
+            output.writeMessage(1, cells_.get(i));
+          }
+          getUnknownFields().writeTo(output);
+        }
+
+        @java.lang.Override
+        public int getSerializedSize() {
+          int size = memoizedSize;
+          if (size != -1) return size;
+
+          size = 0;
+          for (int i = 0; i < cells_.size(); i++) {
+            size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, cells_.get(i));
+          }
+          size += getUnknownFields().getSerializedSize();
+          memoizedSize = size;
+          return size;
+        }
+
+        @java.lang.Override
+        public boolean equals(final java.lang.Object obj) {
+          if (obj == this) {
+            return true;
+          }
+          if (!(obj instanceof com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow)) {
+            return super.equals(obj);
+          }
+          com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow other =
+              (com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow) obj;
+
+          if (!getCellsList().equals(other.getCellsList())) return false;
+          if (!getUnknownFields().equals(other.getUnknownFields())) return false;
+          return true;
+        }
+
+        @java.lang.Override
+        public int hashCode() {
+          if (memoizedHashCode != 0) {
+            return memoizedHashCode;
+          }
+          int hash = 41;
+          hash = (19 * hash) + getDescriptor().hashCode();
+          if (getCellsCount() > 0) {
+            hash = (37 * hash) + CELLS_FIELD_NUMBER;
+            hash = (53 * hash) + getCellsList().hashCode();
+          }
+          hash = (29 * hash) + getUnknownFields().hashCode();
+          memoizedHashCode = hash;
+          return hash;
+        }
+
+        public static com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow parseFrom(
+            java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+          return PARSER.parseFrom(data);
+        }
+
+        public static com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow parseFrom(
+            java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return PARSER.parseFrom(data, extensionRegistry);
+        }
+
+        public static com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow parseFrom(
+            com.google.protobuf.ByteString data)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return PARSER.parseFrom(data);
+        }
+
+        public static com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow parseFrom(
+            com.google.protobuf.ByteString data,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return PARSER.parseFrom(data, extensionRegistry);
+        }
+
+        public static com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow parseFrom(
+            byte[] data) throws com.google.protobuf.InvalidProtocolBufferException {
+          return PARSER.parseFrom(data);
+        }
+
+        public static com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow parseFrom(
+            byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          return PARSER.parseFrom(data, extensionRegistry);
+        }
+
+        public static com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow parseFrom(
+            java.io.InputStream input) throws java.io.IOException {
+          return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+        }
+
+        public static com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow parseFrom(
+            java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws java.io.IOException {
+          return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+              PARSER, input, extensionRegistry);
+        }
+
+        public static com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow
+            parseDelimitedFrom(java.io.InputStream input) throws java.io.IOException {
+          return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+              PARSER, input);
+        }
+
+        public static com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow
+            parseDelimitedFrom(
+                java.io.InputStream input,
+                com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+                throws java.io.IOException {
+          return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+              PARSER, input, extensionRegistry);
+        }
+
+        public static com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow parseFrom(
+            com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+          return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+        }
+
+        public static com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow parseFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws java.io.IOException {
+          return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+              PARSER, input, extensionRegistry);
+        }
+
+        @java.lang.Override
+        public Builder newBuilderForType() {
+          return newBuilder();
+        }
+
+        public static Builder newBuilder() {
+          return DEFAULT_INSTANCE.toBuilder();
+        }
+
+        public static Builder newBuilder(
+            com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow prototype) {
+          return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+        }
+
+        @java.lang.Override
+        public Builder toBuilder() {
+          return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+        }
+
+        @java.lang.Override
+        protected Builder newBuilderForType(
+            com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+          Builder builder = new Builder(parent);
+          return builder;
+        }
+        /**
+         *
+         *
+         * 
+         * A row of table cells.
+         * 

+         *
+         * Protobuf type {@code google.cloud.documentai.v1beta2.Document.Page.Table.TableRow}
+         */
+        public static final class Builder
+            extends com.google.protobuf.GeneratedMessageV3.Builder
+            implements
+            // @@protoc_insertion_point(builder_implements:google.cloud.documentai.v1beta2.Document.Page.Table.TableRow)
+            com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRowOrBuilder {
+          public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+            return com.google.cloud.documentai.v1beta2.DocumentProto
+                .internal_static_google_cloud_documentai_v1beta2_Document_Page_Table_TableRow_descriptor;
+          }
+
+          @java.lang.Override
+          protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
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+            return com.google.cloud.documentai.v1beta2.DocumentProto
+                .internal_static_google_cloud_documentai_v1beta2_Document_Page_Table_TableRow_fieldAccessorTable
+                .ensureFieldAccessorsInitialized(
+                    com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow.class,
+                    com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow.Builder.class);
+          }
+
+          // Construct using
+          // com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow.newBuilder()
+          private Builder() {}
+
+          private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+            super(parent);
+          }
+
+          @java.lang.Override
+          public Builder clear() {
+            super.clear();
+            bitField0_ = 0;
+            if (cellsBuilder_ == null) {
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+              cellsBuilder_.clear();
+            }
+            bitField0_ = (bitField0_ & ~0x00000001);
+            return this;
+          }
+
+          @java.lang.Override
+          public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+            return com.google.cloud.documentai.v1beta2.DocumentProto
+                .internal_static_google_cloud_documentai_v1beta2_Document_Page_Table_TableRow_descriptor;
+          }
+
+          @java.lang.Override
+          public com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow
+              getDefaultInstanceForType() {
+            return com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow
+                .getDefaultInstance();
+          }
+
+          @java.lang.Override
+          public com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow build() {
+            com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow result =
+                buildPartial();
+            if (!result.isInitialized()) {
+              throw newUninitializedMessageException(result);
+            }
+            return result;
+          }
+
+          @java.lang.Override
+          public com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow buildPartial() {
+            com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow result =
+                new com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow(this);
+            buildPartialRepeatedFields(result);
+            if (bitField0_ != 0) {
+              buildPartial0(result);
+            }
+            onBuilt();
+            return result;
+          }
+
+          private void buildPartialRepeatedFields(
+              com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow result) {
+            if (cellsBuilder_ == null) {
+              if (((bitField0_ & 0x00000001) != 0)) {
+                cells_ = java.util.Collections.unmodifiableList(cells_);
+                bitField0_ = (bitField0_ & ~0x00000001);
+              }
+              result.cells_ = cells_;
+            } else {
+              result.cells_ = cellsBuilder_.build();
+            }
+          }
+
+          private void buildPartial0(
+              com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow result) {
+            int from_bitField0_ = bitField0_;
+          }
+
+          @java.lang.Override
+          public Builder clone() {
+            return super.clone();
+          }
+
+          @java.lang.Override
+          public Builder setField(
+              com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+            return super.setField(field, value);
+          }
+
+          @java.lang.Override
+          public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+            return super.clearField(field);
+          }
+
+          @java.lang.Override
+          public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+            return super.clearOneof(oneof);
+          }
+
+          @java.lang.Override
+          public Builder setRepeatedField(
+              com.google.protobuf.Descriptors.FieldDescriptor field,
+              int index,
+              java.lang.Object value) {
+            return super.setRepeatedField(field, index, value);
+          }
+
+          @java.lang.Override
+          public Builder addRepeatedField(
+              com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+            return super.addRepeatedField(field, value);
+          }
+
+          @java.lang.Override
+          public Builder mergeFrom(com.google.protobuf.Message other) {
+            if (other instanceof com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow) {
+              return mergeFrom(
+                  (com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow) other);
+            } else {
+              super.mergeFrom(other);
+              return this;
+            }
+          }
+
+          public Builder mergeFrom(
+              com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow other) {
+            if (other
+                == com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow
+                    .getDefaultInstance()) return this;
+            if (cellsBuilder_ == null) {
+              if (!other.cells_.isEmpty()) {
+                if (cells_.isEmpty()) {
+                  cells_ = other.cells_;
+                  bitField0_ = (bitField0_ & ~0x00000001);
+                } else {
+                  ensureCellsIsMutable();
+                  cells_.addAll(other.cells_);
+                }
+                onChanged();
+              }
+            } else {
+              if (!other.cells_.isEmpty()) {
+                if (cellsBuilder_.isEmpty()) {
+                  cellsBuilder_.dispose();
+                  cellsBuilder_ = null;
+                  cells_ = other.cells_;
+                  bitField0_ = (bitField0_ & ~0x00000001);
+                  cellsBuilder_ =
+                      com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders
+                          ? getCellsFieldBuilder()
+                          : null;
+                } else {
+                  cellsBuilder_.addAllMessages(other.cells_);
+                }
+              }
+            }
+            this.mergeUnknownFields(other.getUnknownFields());
+            onChanged();
+            return this;
+          }
+
+          @java.lang.Override
+          public final boolean isInitialized() {
+            return true;
+          }
+
+          @java.lang.Override
+          public Builder mergeFrom(
+              com.google.protobuf.CodedInputStream input,
+              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+              throws java.io.IOException {
+            if (extensionRegistry == null) {
+              throw new java.lang.NullPointerException();
+            }
+            try {
+              boolean done = false;
+              while (!done) {
+                int tag = input.readTag();
+                switch (tag) {
+                  case 0:
+                    done = true;
+                    break;
+                  case 10:
+                    {
+                      com.google.cloud.documentai.v1beta2.Document.Page.Table.TableCell m =
+                          input.readMessage(
+                              com.google.cloud.documentai.v1beta2.Document.Page.Table.TableCell
+                                  .parser(),
+                              extensionRegistry);
+                      if (cellsBuilder_ == null) {
+                        ensureCellsIsMutable();
+                        cells_.add(m);
+                      } else {
+                        cellsBuilder_.addMessage(m);
+                      }
+                      break;
+                    } // case 10
+                  default:
+                    {
+                      if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                        done = true; // was an endgroup tag
+                      }
+                      break;
+                    } // default:
+                } // switch (tag)
+              } // while (!done)
+            } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+              throw e.unwrapIOException();
+            } finally {
+              onChanged();
+            } // finally
+            return this;
+          }
+
+          private int bitField0_;
+
+          private java.util.List
+              cells_ = java.util.Collections.emptyList();
+
+          private void ensureCellsIsMutable() {
+            if (!((bitField0_ & 0x00000001) != 0)) {
+              cells_ =
+                  new java.util.ArrayList<
+                      com.google.cloud.documentai.v1beta2.Document.Page.Table.TableCell>(cells_);
+              bitField0_ |= 0x00000001;
+            }
+          }
+
+          private com.google.protobuf.RepeatedFieldBuilderV3<
+                  com.google.cloud.documentai.v1beta2.Document.Page.Table.TableCell,
+                  com.google.cloud.documentai.v1beta2.Document.Page.Table.TableCell.Builder,
+                  com.google.cloud.documentai.v1beta2.Document.Page.Table.TableCellOrBuilder>
+              cellsBuilder_;
+
+          /**
+           *
+           *
+           * 
+           * Cells that make up this row.
+           * 

+           *
+           * 
+           * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableCell cells = 1;
+           * 
+           */
+          public java.util.List
+              getCellsList() {
+            if (cellsBuilder_ == null) {
+              return java.util.Collections.unmodifiableList(cells_);
+            } else {
+              return cellsBuilder_.getMessageList();
+            }
+          }
+          /**
+           *
+           *
+           * 
+           * Cells that make up this row.
+           * 

+           *
+           * 
+           * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableCell cells = 1;
+           * 
+           */
+          public int getCellsCount() {
+            if (cellsBuilder_ == null) {
+              return cells_.size();
+            } else {
+              return cellsBuilder_.getCount();
+            }
+          }
+          /**
+           *
+           *
+           * 
+           * Cells that make up this row.
+           * 

+           *
+           * 
+           * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableCell cells = 1;
+           * 
+           */
+          public com.google.cloud.documentai.v1beta2.Document.Page.Table.TableCell getCells(
+              int index) {
+            if (cellsBuilder_ == null) {
+              return cells_.get(index);
+            } else {
+              return cellsBuilder_.getMessage(index);
+            }
+          }
+          /**
+           *
+           *
+           * 
+           * Cells that make up this row.
+           * 

+           *
+           * 
+           * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableCell cells = 1;
+           * 
+           */
+          public Builder setCells(
+              int index, com.google.cloud.documentai.v1beta2.Document.Page.Table.TableCell value) {
+            if (cellsBuilder_ == null) {
+              if (value == null) {
+                throw new NullPointerException();
+              }
+              ensureCellsIsMutable();
+              cells_.set(index, value);
+              onChanged();
+            } else {
+              cellsBuilder_.setMessage(index, value);
+            }
+            return this;
+          }
+          /**
+           *
+           *
+           * 
+           * Cells that make up this row.
+           * 

+           *
+           * 
+           * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableCell cells = 1;
+           * 
+           */
+          public Builder setCells(
+              int index,
+              com.google.cloud.documentai.v1beta2.Document.Page.Table.TableCell.Builder
+                  builderForValue) {
+            if (cellsBuilder_ == null) {
+              ensureCellsIsMutable();
+              cells_.set(index, builderForValue.build());
+              onChanged();
+            } else {
+              cellsBuilder_.setMessage(index, builderForValue.build());
+            }
+            return this;
+          }
+          /**
+           *
+           *
+           * 
+           * Cells that make up this row.
+           * 

+           *
+           * 
+           * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableCell cells = 1;
+           * 
+           */
+          public Builder addCells(
+              com.google.cloud.documentai.v1beta2.Document.Page.Table.TableCell value) {
+            if (cellsBuilder_ == null) {
+              if (value == null) {
+                throw new NullPointerException();
+              }
+              ensureCellsIsMutable();
+              cells_.add(value);
+              onChanged();
+            } else {
+              cellsBuilder_.addMessage(value);
+            }
+            return this;
+          }
+          /**
+           *
+           *
+           * 
+           * Cells that make up this row.
+           * 

+           *
+           * 
+           * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableCell cells = 1;
+           * 
+           */
+          public Builder addCells(
+              int index, com.google.cloud.documentai.v1beta2.Document.Page.Table.TableCell value) {
+            if (cellsBuilder_ == null) {
+              if (value == null) {
+                throw new NullPointerException();
+              }
+              ensureCellsIsMutable();
+              cells_.add(index, value);
+              onChanged();
+            } else {
+              cellsBuilder_.addMessage(index, value);
+            }
+            return this;
+          }
+          /**
+           *
+           *
+           * 
+           * Cells that make up this row.
+           * 

+           *
+           * 
+           * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableCell cells = 1;
+           * 
+           */
+          public Builder addCells(
+              com.google.cloud.documentai.v1beta2.Document.Page.Table.TableCell.Builder
+                  builderForValue) {
+            if (cellsBuilder_ == null) {
+              ensureCellsIsMutable();
+              cells_.add(builderForValue.build());
+              onChanged();
+            } else {
+              cellsBuilder_.addMessage(builderForValue.build());
+            }
+            return this;
+          }
+          /**
+           *
+           *
+           * 
+           * Cells that make up this row.
+           * 

+           *
+           * 
+           * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableCell cells = 1;
+           * 
+           */
+          public Builder addCells(
+              int index,
+              com.google.cloud.documentai.v1beta2.Document.Page.Table.TableCell.Builder
+                  builderForValue) {
+            if (cellsBuilder_ == null) {
+              ensureCellsIsMutable();
+              cells_.add(index, builderForValue.build());
+              onChanged();
+            } else {
+              cellsBuilder_.addMessage(index, builderForValue.build());
+            }
+            return this;
+          }
+          /**
+           *
+           *
+           * 
+           * Cells that make up this row.
+           * 

+           *
+           * 
+           * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableCell cells = 1;
+           * 
+           */
+          public Builder addAllCells(
+              java.lang.Iterable<
+                      ? extends com.google.cloud.documentai.v1beta2.Document.Page.Table.TableCell>
+                  values) {
+            if (cellsBuilder_ == null) {
+              ensureCellsIsMutable();
+              com.google.protobuf.AbstractMessageLite.Builder.addAll(values, cells_);
+              onChanged();
+            } else {
+              cellsBuilder_.addAllMessages(values);
+            }
+            return this;
+          }
+          /**
+           *
+           *
+           * 
+           * Cells that make up this row.
+           * 

+           *
+           * 
+           * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableCell cells = 1;
+           * 
+           */
+          public Builder clearCells() {
+            if (cellsBuilder_ == null) {
+              cells_ = java.util.Collections.emptyList();
+              bitField0_ = (bitField0_ & ~0x00000001);
+              onChanged();
+            } else {
+              cellsBuilder_.clear();
+            }
+            return this;
+          }
+          /**
+           *
+           *
+           * 
+           * Cells that make up this row.
+           * 

+           *
+           * 
+           * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableCell cells = 1;
+           * 
+           */
+          public Builder removeCells(int index) {
+            if (cellsBuilder_ == null) {
+              ensureCellsIsMutable();
+              cells_.remove(index);
+              onChanged();
+            } else {
+              cellsBuilder_.remove(index);
+            }
+            return this;
+          }
+          /**
+           *
+           *
+           * 
+           * Cells that make up this row.
+           * 

+           *
+           * 
+           * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableCell cells = 1;
+           * 
+           */
+          public com.google.cloud.documentai.v1beta2.Document.Page.Table.TableCell.Builder
+              getCellsBuilder(int index) {
+            return getCellsFieldBuilder().getBuilder(index);
+          }
+          /**
+           *
+           *
+           * 
+           * Cells that make up this row.
+           * 

+           *
+           * 
+           * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableCell cells = 1;
+           * 
+           */
+          public com.google.cloud.documentai.v1beta2.Document.Page.Table.TableCellOrBuilder
+              getCellsOrBuilder(int index) {
+            if (cellsBuilder_ == null) {
+              return cells_.get(index);
+            } else {
+              return cellsBuilder_.getMessageOrBuilder(index);
+            }
+          }
+          /**
+           *
+           *
+           * 
+           * Cells that make up this row.
+           * 

+           *
+           * 
+           * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableCell cells = 1;
+           * 
+           */
+          public java.util.List<
+                  ? extends
+                      com.google.cloud.documentai.v1beta2.Document.Page.Table.TableCellOrBuilder>
+              getCellsOrBuilderList() {
+            if (cellsBuilder_ != null) {
+              return cellsBuilder_.getMessageOrBuilderList();
+            } else {
+              return java.util.Collections.unmodifiableList(cells_);
+            }
+          }
+          /**
+           *
+           *
+           * 
+           * Cells that make up this row.
+           * 

+           *
+           * 
+           * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableCell cells = 1;
+           * 
+           */
+          public com.google.cloud.documentai.v1beta2.Document.Page.Table.TableCell.Builder
+              addCellsBuilder() {
+            return getCellsFieldBuilder()
+                .addBuilder(
+                    com.google.cloud.documentai.v1beta2.Document.Page.Table.TableCell
+                        .getDefaultInstance());
+          }
+          /**
+           *
+           *
+           * 
+           * Cells that make up this row.
+           * 

+           *
+           * 
+           * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableCell cells = 1;
+           * 
+           */
+          public com.google.cloud.documentai.v1beta2.Document.Page.Table.TableCell.Builder
+              addCellsBuilder(int index) {
+            return getCellsFieldBuilder()
+                .addBuilder(
+                    index,
+                    com.google.cloud.documentai.v1beta2.Document.Page.Table.TableCell
+                        .getDefaultInstance());
+          }
+          /**
+           *
+           *
+           * 
+           * Cells that make up this row.
+           * 

+           *
+           * 
+           * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableCell cells = 1;
+           * 
+           */
+          public java.util.List<
+                  com.google.cloud.documentai.v1beta2.Document.Page.Table.TableCell.Builder>
+              getCellsBuilderList() {
+            return getCellsFieldBuilder().getBuilderList();
+          }
+
+          private com.google.protobuf.RepeatedFieldBuilderV3<
+                  com.google.cloud.documentai.v1beta2.Document.Page.Table.TableCell,
+                  com.google.cloud.documentai.v1beta2.Document.Page.Table.TableCell.Builder,
+                  com.google.cloud.documentai.v1beta2.Document.Page.Table.TableCellOrBuilder>
+              getCellsFieldBuilder() {
+            if (cellsBuilder_ == null) {
+              cellsBuilder_ =
+                  new com.google.protobuf.RepeatedFieldBuilderV3<
+                      com.google.cloud.documentai.v1beta2.Document.Page.Table.TableCell,
+                      com.google.cloud.documentai.v1beta2.Document.Page.Table.TableCell.Builder,
+                      com.google.cloud.documentai.v1beta2.Document.Page.Table.TableCellOrBuilder>(
+                      cells_, ((bitField0_ & 0x00000001) != 0), getParentForChildren(), isClean());
+              cells_ = null;
+            }
+            return cellsBuilder_;
+          }
+
+          @java.lang.Override
+          public final Builder setUnknownFields(
+              final com.google.protobuf.UnknownFieldSet unknownFields) {
+            return super.setUnknownFields(unknownFields);
+          }
+
+          @java.lang.Override
+          public final Builder mergeUnknownFields(
+              final com.google.protobuf.UnknownFieldSet unknownFields) {
+            return super.mergeUnknownFields(unknownFields);
+          }
+
+          // @@protoc_insertion_point(builder_scope:google.cloud.documentai.v1beta2.Document.Page.Table.TableRow)
+        }
+
+        // @@protoc_insertion_point(class_scope:google.cloud.documentai.v1beta2.Document.Page.Table.TableRow)
+        private static final com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow
+            DEFAULT_INSTANCE;
+
+        static {
+          DEFAULT_INSTANCE = new com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow();
+        }
+
+        public static com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow
+            getDefaultInstance() {
+          return DEFAULT_INSTANCE;
+        }
+
+        private static final com.google.protobuf.Parser PARSER =
+            new com.google.protobuf.AbstractParser() {
+              @java.lang.Override
+              public TableRow parsePartialFrom(
+                  com.google.protobuf.CodedInputStream input,
+                  com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+                  throws com.google.protobuf.InvalidProtocolBufferException {
+                Builder builder = newBuilder();
+                try {
+                  builder.mergeFrom(input, extensionRegistry);
+                } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+                  throw e.setUnfinishedMessage(builder.buildPartial());
+                } catch (com.google.protobuf.UninitializedMessageException e) {
+                  throw e.asInvalidProtocolBufferException()
+                      .setUnfinishedMessage(builder.buildPartial());
+                } catch (java.io.IOException e) {
+                  throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                      .setUnfinishedMessage(builder.buildPartial());
+                }
+                return builder.buildPartial();
+              }
+            };
+
+        public static com.google.protobuf.Parser parser() {
+          return PARSER;
+        }
+
+        @java.lang.Override
+        public com.google.protobuf.Parser getParserForType() {
+          return PARSER;
+        }
+
+        @java.lang.Override
+        public com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow
+            getDefaultInstanceForType() {
+          return DEFAULT_INSTANCE;
+        }
+      }
+
+      public interface TableCellOrBuilder
+          extends
+          // @@protoc_insertion_point(interface_extends:google.cloud.documentai.v1beta2.Document.Page.Table.TableCell)
+          com.google.protobuf.MessageOrBuilder {
+
+        /**
+         *
+         *
+         * 
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+         * [TableCell][google.cloud.documentai.v1beta2.Document.Page.Table.TableCell].
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+         *
+         * @return Whether the layout field is set.
+         */
+        boolean hasLayout();
+        /**
+         *
+         *
+         * 
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+         * [TableCell][google.cloud.documentai.v1beta2.Document.Page.Table.TableCell].
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+         *
+         * @return The layout.
+         */
+        com.google.cloud.documentai.v1beta2.Document.Page.Layout getLayout();
+        /**
+         *
+         *
+         * 
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+         * [TableCell][google.cloud.documentai.v1beta2.Document.Page.Table.TableCell].
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+         */
+        com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder getLayoutOrBuilder();
+
+        /**
+         *
+         *
+         * 
+         * How many rows this cell spans.
+         * 

+         *
+         * int32 row_span = 2;
+         *
+         * @return The rowSpan.
+         */
+        int getRowSpan();
+
+        /**
+         *
+         *
+         * 
+         * How many columns this cell spans.
+         * 

+         *
+         * int32 col_span = 3;
+         *
+         * @return The colSpan.
+         */
+        int getColSpan();
+
+        /**
+         *
+         *
+         * 
+         * A list of detected languages together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
+         * 
+         */
+        java.util.List
+            getDetectedLanguagesList();
+        /**
+         *
+         *
+         * 
+         * A list of detected languages together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
+         * 
+         */
+        com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage getDetectedLanguages(
+            int index);
+        /**
+         *
+         *
+         * 
+         * A list of detected languages together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
+         * 
+         */
+        int getDetectedLanguagesCount();
+        /**
+         *
+         *
+         * 
+         * A list of detected languages together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
+         * 
+         */
+        java.util.List<
+                ? extends
+                    com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>
+            getDetectedLanguagesOrBuilderList();
+        /**
+         *
+         *
+         * 
+         * A list of detected languages together with confidence.
+         * 

+         *
+         * 
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+       * A cell representation inside the table.
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+       * Protobuf type {@code google.cloud.documentai.v1beta2.Document.Page.Table.TableCell}
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+          TableCellOrBuilder {
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+        /**
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+         *
+         * 
+         * A list of detected languages together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
+         * 
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+        /**
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+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
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+         *
+         * 
+         * A list of detected languages together with confidence.
+         * 

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+         * 
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+        public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder
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+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
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+                              com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage
+                                  .parser(),
+                              extensionRegistry);
+                      if (detectedLanguagesBuilder_ == null) {
+                        ensureDetectedLanguagesIsMutable();
+                        detectedLanguages_.add(m);
+                      } else {
+                        detectedLanguagesBuilder_.addMessage(m);
+                      }
+                      break;
+                    } // case 34
+                  default:
+                    {
+                      if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                        done = true; // was an endgroup tag
+                      }
+                      break;
+                    } // default:
+                } // switch (tag)
+              } // while (!done)
+            } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+              throw e.unwrapIOException();
+            } finally {
+              onChanged();
+            } // finally
+            return this;
+          }
+
+          private int bitField0_;
+
+          private com.google.cloud.documentai.v1beta2.Document.Page.Layout layout_;
+          private com.google.protobuf.SingleFieldBuilderV3<
+                  com.google.cloud.documentai.v1beta2.Document.Page.Layout,
+                  com.google.cloud.documentai.v1beta2.Document.Page.Layout.Builder,
+                  com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder>
+              layoutBuilder_;
+          /**
+           *
+           *
+           * 
+           * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+           * [TableCell][google.cloud.documentai.v1beta2.Document.Page.Table.TableCell].
+           * 

+           *
+           * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+           *
+           * @return Whether the layout field is set.
+           */
+          public boolean hasLayout() {
+            return ((bitField0_ & 0x00000001) != 0);
+          }
+          /**
+           *
+           *
+           * 
+           * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+           * [TableCell][google.cloud.documentai.v1beta2.Document.Page.Table.TableCell].
+           * 

+           *
+           * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+           *
+           * @return The layout.
+           */
+          public com.google.cloud.documentai.v1beta2.Document.Page.Layout getLayout() {
+            if (layoutBuilder_ == null) {
+              return layout_ == null
+                  ? com.google.cloud.documentai.v1beta2.Document.Page.Layout.getDefaultInstance()
+                  : layout_;
+            } else {
+              return layoutBuilder_.getMessage();
+            }
+          }
+          /**
+           *
+           *
+           * 
+           * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+           * [TableCell][google.cloud.documentai.v1beta2.Document.Page.Table.TableCell].
+           * 

+           *
+           * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+           */
+          public Builder setLayout(com.google.cloud.documentai.v1beta2.Document.Page.Layout value) {
+            if (layoutBuilder_ == null) {
+              if (value == null) {
+                throw new NullPointerException();
+              }
+              layout_ = value;
+            } else {
+              layoutBuilder_.setMessage(value);
+            }
+            bitField0_ |= 0x00000001;
+            onChanged();
+            return this;
+          }
+          /**
+           *
+           *
+           * 
+           * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+           * [TableCell][google.cloud.documentai.v1beta2.Document.Page.Table.TableCell].
+           * 

+           *
+           * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+           */
+          public Builder setLayout(
+              com.google.cloud.documentai.v1beta2.Document.Page.Layout.Builder builderForValue) {
+            if (layoutBuilder_ == null) {
+              layout_ = builderForValue.build();
+            } else {
+              layoutBuilder_.setMessage(builderForValue.build());
+            }
+            bitField0_ |= 0x00000001;
+            onChanged();
+            return this;
+          }
+          /**
+           *
+           *
+           * 
+           * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+           * [TableCell][google.cloud.documentai.v1beta2.Document.Page.Table.TableCell].
+           * 

+           *
+           * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+           */
+          public Builder mergeLayout(
+              com.google.cloud.documentai.v1beta2.Document.Page.Layout value) {
+            if (layoutBuilder_ == null) {
+              if (((bitField0_ & 0x00000001) != 0)
+                  && layout_ != null
+                  && layout_
+                      != com.google.cloud.documentai.v1beta2.Document.Page.Layout
+                          .getDefaultInstance()) {
+                getLayoutBuilder().mergeFrom(value);
+              } else {
+                layout_ = value;
+              }
+            } else {
+              layoutBuilder_.mergeFrom(value);
+            }
+            bitField0_ |= 0x00000001;
+            onChanged();
+            return this;
+          }
+          /**
+           *
+           *
+           * 
+           * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+           * [TableCell][google.cloud.documentai.v1beta2.Document.Page.Table.TableCell].
+           * 

+           *
+           * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+           */
+          public Builder clearLayout() {
+            bitField0_ = (bitField0_ & ~0x00000001);
+            layout_ = null;
+            if (layoutBuilder_ != null) {
+              layoutBuilder_.dispose();
+              layoutBuilder_ = null;
+            }
+            onChanged();
+            return this;
+          }
+          /**
+           *
+           *
+           * 
+           * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+           * [TableCell][google.cloud.documentai.v1beta2.Document.Page.Table.TableCell].
+           * 

+           *
+           * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+           */
+          public com.google.cloud.documentai.v1beta2.Document.Page.Layout.Builder
+              getLayoutBuilder() {
+            bitField0_ |= 0x00000001;
+            onChanged();
+            return getLayoutFieldBuilder().getBuilder();
+          }
+          /**
+           *
+           *
+           * 
+           * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+           * [TableCell][google.cloud.documentai.v1beta2.Document.Page.Table.TableCell].
+           * 

+           *
+           * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+           */
+          public com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder
+              getLayoutOrBuilder() {
+            if (layoutBuilder_ != null) {
+              return layoutBuilder_.getMessageOrBuilder();
+            } else {
+              return layout_ == null
+                  ? com.google.cloud.documentai.v1beta2.Document.Page.Layout.getDefaultInstance()
+                  : layout_;
+            }
+          }
+          /**
+           *
+           *
+           * 
+           * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+           * [TableCell][google.cloud.documentai.v1beta2.Document.Page.Table.TableCell].
+           * 

+           *
+           * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+           */
+          private com.google.protobuf.SingleFieldBuilderV3<
+                  com.google.cloud.documentai.v1beta2.Document.Page.Layout,
+                  com.google.cloud.documentai.v1beta2.Document.Page.Layout.Builder,
+                  com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder>
+              getLayoutFieldBuilder() {
+            if (layoutBuilder_ == null) {
+              layoutBuilder_ =
+                  new com.google.protobuf.SingleFieldBuilderV3<
+                      com.google.cloud.documentai.v1beta2.Document.Page.Layout,
+                      com.google.cloud.documentai.v1beta2.Document.Page.Layout.Builder,
+                      com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder>(
+                      getLayout(), getParentForChildren(), isClean());
+              layout_ = null;
+            }
+            return layoutBuilder_;
+          }
+
+          private int rowSpan_;
+          /**
+           *
+           *
+           * 
+           * How many rows this cell spans.
+           * 

+           *
+           * int32 row_span = 2;
+           *
+           * @return The rowSpan.
+           */
+          @java.lang.Override
+          public int getRowSpan() {
+            return rowSpan_;
+          }
+          /**
+           *
+           *
+           * 
+           * How many rows this cell spans.
+           * 

+           *
+           * int32 row_span = 2;
+           *
+           * @param value The rowSpan to set.
+           * @return This builder for chaining.
+           */
+          public Builder setRowSpan(int value) {
+
+            rowSpan_ = value;
+            bitField0_ |= 0x00000002;
+            onChanged();
+            return this;
+          }
+          /**
+           *
+           *
+           * 
+           * How many rows this cell spans.
+           * 

+           *
+           * int32 row_span = 2;
+           *
+           * @return This builder for chaining.
+           */
+          public Builder clearRowSpan() {
+            bitField0_ = (bitField0_ & ~0x00000002);
+            rowSpan_ = 0;
+            onChanged();
+            return this;
+          }
+
+          private int colSpan_;
+          /**
+           *
+           *
+           * 
+           * How many columns this cell spans.
+           * 

+           *
+           * int32 col_span = 3;
+           *
+           * @return The colSpan.
+           */
+          @java.lang.Override
+          public int getColSpan() {
+            return colSpan_;
+          }
+          /**
+           *
+           *
+           * 
+           * How many columns this cell spans.
+           * 

+           *
+           * int32 col_span = 3;
+           *
+           * @param value The colSpan to set.
+           * @return This builder for chaining.
+           */
+          public Builder setColSpan(int value) {
+
+            colSpan_ = value;
+            bitField0_ |= 0x00000004;
+            onChanged();
+            return this;
+          }
+          /**
+           *
+           *
+           * 
+           * How many columns this cell spans.
+           * 

+           *
+           * int32 col_span = 3;
+           *
+           * @return This builder for chaining.
+           */
+          public Builder clearColSpan() {
+            bitField0_ = (bitField0_ & ~0x00000004);
+            colSpan_ = 0;
+            onChanged();
+            return this;
+          }
+
+          private java.util.List
+              detectedLanguages_ = java.util.Collections.emptyList();
+
+          private void ensureDetectedLanguagesIsMutable() {
+            if (!((bitField0_ & 0x00000008) != 0)) {
+              detectedLanguages_ =
+                  new java.util.ArrayList<
+                      com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage>(
+                      detectedLanguages_);
+              bitField0_ |= 0x00000008;
+            }
+          }
+
+          private com.google.protobuf.RepeatedFieldBuilderV3<
+                  com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage,
+                  com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder,
+                  com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>
+              detectedLanguagesBuilder_;
+
+          /**
+           *
+           *
+           * 
+           * A list of detected languages together with confidence.
+           * 

+           *
+           * 
+           * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
+           * 
+           */
+          public java.util.List
+              getDetectedLanguagesList() {
+            if (detectedLanguagesBuilder_ == null) {
+              return java.util.Collections.unmodifiableList(detectedLanguages_);
+            } else {
+              return detectedLanguagesBuilder_.getMessageList();
+            }
+          }
+          /**
+           *
+           *
+           * 
+           * A list of detected languages together with confidence.
+           * 

+           *
+           * 
+           * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
+           * 
+           */
+          public int getDetectedLanguagesCount() {
+            if (detectedLanguagesBuilder_ == null) {
+              return detectedLanguages_.size();
+            } else {
+              return detectedLanguagesBuilder_.getCount();
+            }
+          }
+          /**
+           *
+           *
+           * 
+           * A list of detected languages together with confidence.
+           * 

+           *
+           * 
+           * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
+           * 
+           */
+          public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage
+              getDetectedLanguages(int index) {
+            if (detectedLanguagesBuilder_ == null) {
+              return detectedLanguages_.get(index);
+            } else {
+              return detectedLanguagesBuilder_.getMessage(index);
+            }
+          }
+          /**
+           *
+           *
+           * 
+           * A list of detected languages together with confidence.
+           * 

+           *
+           * 
+           * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
+           * 
+           */
+          public Builder setDetectedLanguages(
+              int index, com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value) {
+            if (detectedLanguagesBuilder_ == null) {
+              if (value == null) {
+                throw new NullPointerException();
+              }
+              ensureDetectedLanguagesIsMutable();
+              detectedLanguages_.set(index, value);
+              onChanged();
+            } else {
+              detectedLanguagesBuilder_.setMessage(index, value);
+            }
+            return this;
+          }
+          /**
+           *
+           *
+           * 
+           * A list of detected languages together with confidence.
+           * 

+           *
+           * 
+           * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
+           * 
+           */
+          public Builder setDetectedLanguages(
+              int index,
+              com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
+                  builderForValue) {
+            if (detectedLanguagesBuilder_ == null) {
+              ensureDetectedLanguagesIsMutable();
+              detectedLanguages_.set(index, builderForValue.build());
+              onChanged();
+            } else {
+              detectedLanguagesBuilder_.setMessage(index, builderForValue.build());
+            }
+            return this;
+          }
+          /**
+           *
+           *
+           * 
+           * A list of detected languages together with confidence.
+           * 

+           *
+           * 
+           * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
+           * 
+           */
+          public Builder addDetectedLanguages(
+              com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value) {
+            if (detectedLanguagesBuilder_ == null) {
+              if (value == null) {
+                throw new NullPointerException();
+              }
+              ensureDetectedLanguagesIsMutable();
+              detectedLanguages_.add(value);
+              onChanged();
+            } else {
+              detectedLanguagesBuilder_.addMessage(value);
+            }
+            return this;
+          }
+          /**
+           *
+           *
+           * 
+           * A list of detected languages together with confidence.
+           * 

+           *
+           * 
+           * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
+           * 
+           */
+          public Builder addDetectedLanguages(
+              int index, com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value) {
+            if (detectedLanguagesBuilder_ == null) {
+              if (value == null) {
+                throw new NullPointerException();
+              }
+              ensureDetectedLanguagesIsMutable();
+              detectedLanguages_.add(index, value);
+              onChanged();
+            } else {
+              detectedLanguagesBuilder_.addMessage(index, value);
+            }
+            return this;
+          }
+          /**
+           *
+           *
+           * 
+           * A list of detected languages together with confidence.
+           * 

+           *
+           * 
+           * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
+           * 
+           */
+          public Builder addDetectedLanguages(
+              com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
+                  builderForValue) {
+            if (detectedLanguagesBuilder_ == null) {
+              ensureDetectedLanguagesIsMutable();
+              detectedLanguages_.add(builderForValue.build());
+              onChanged();
+            } else {
+              detectedLanguagesBuilder_.addMessage(builderForValue.build());
+            }
+            return this;
+          }
+          /**
+           *
+           *
+           * 
+           * A list of detected languages together with confidence.
+           * 

+           *
+           * 
+           * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
+           * 
+           */
+          public Builder addDetectedLanguages(
+              int index,
+              com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
+                  builderForValue) {
+            if (detectedLanguagesBuilder_ == null) {
+              ensureDetectedLanguagesIsMutable();
+              detectedLanguages_.add(index, builderForValue.build());
+              onChanged();
+            } else {
+              detectedLanguagesBuilder_.addMessage(index, builderForValue.build());
+            }
+            return this;
+          }
+          /**
+           *
+           *
+           * 
+           * A list of detected languages together with confidence.
+           * 

+           *
+           * 
+           * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
+           * 
+           */
+          public Builder addAllDetectedLanguages(
+              java.lang.Iterable<
+                      ? extends com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage>
+                  values) {
+            if (detectedLanguagesBuilder_ == null) {
+              ensureDetectedLanguagesIsMutable();
+              com.google.protobuf.AbstractMessageLite.Builder.addAll(values, detectedLanguages_);
+              onChanged();
+            } else {
+              detectedLanguagesBuilder_.addAllMessages(values);
+            }
+            return this;
+          }
+          /**
+           *
+           *
+           * 
+           * A list of detected languages together with confidence.
+           * 

+           *
+           * 
+           * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
+           * 
+           */
+          public Builder clearDetectedLanguages() {
+            if (detectedLanguagesBuilder_ == null) {
+              detectedLanguages_ = java.util.Collections.emptyList();
+              bitField0_ = (bitField0_ & ~0x00000008);
+              onChanged();
+            } else {
+              detectedLanguagesBuilder_.clear();
+            }
+            return this;
+          }
+          /**
+           *
+           *
+           * 
+           * A list of detected languages together with confidence.
+           * 

+           *
+           * 
+           * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
+           * 
+           */
+          public Builder removeDetectedLanguages(int index) {
+            if (detectedLanguagesBuilder_ == null) {
+              ensureDetectedLanguagesIsMutable();
+              detectedLanguages_.remove(index);
+              onChanged();
+            } else {
+              detectedLanguagesBuilder_.remove(index);
+            }
+            return this;
+          }
+          /**
+           *
+           *
+           * 
+           * A list of detected languages together with confidence.
+           * 

+           *
+           * 
+           * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
+           * 
+           */
+          public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
+              getDetectedLanguagesBuilder(int index) {
+            return getDetectedLanguagesFieldBuilder().getBuilder(index);
+          }
+          /**
+           *
+           *
+           * 
+           * A list of detected languages together with confidence.
+           * 

+           *
+           * 
+           * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
+           * 
+           */
+          public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder
+              getDetectedLanguagesOrBuilder(int index) {
+            if (detectedLanguagesBuilder_ == null) {
+              return detectedLanguages_.get(index);
+            } else {
+              return detectedLanguagesBuilder_.getMessageOrBuilder(index);
+            }
+          }
+          /**
+           *
+           *
+           * 
+           * A list of detected languages together with confidence.
+           * 

+           *
+           * 
+           * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
+           * 
+           */
+          public java.util.List<
+                  ? extends
+                      com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>
+              getDetectedLanguagesOrBuilderList() {
+            if (detectedLanguagesBuilder_ != null) {
+              return detectedLanguagesBuilder_.getMessageOrBuilderList();
+            } else {
+              return java.util.Collections.unmodifiableList(detectedLanguages_);
+            }
+          }
+          /**
+           *
+           *
+           * 
+           * A list of detected languages together with confidence.
+           * 

+           *
+           * 
+           * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
+           * 
+           */
+          public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
+              addDetectedLanguagesBuilder() {
+            return getDetectedLanguagesFieldBuilder()
+                .addBuilder(
+                    com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage
+                        .getDefaultInstance());
+          }
+          /**
+           *
+           *
+           * 
+           * A list of detected languages together with confidence.
+           * 

+           *
+           * 
+           * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
+           * 
+           */
+          public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
+              addDetectedLanguagesBuilder(int index) {
+            return getDetectedLanguagesFieldBuilder()
+                .addBuilder(
+                    index,
+                    com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage
+                        .getDefaultInstance());
+          }
+          /**
+           *
+           *
+           * 
+           * A list of detected languages together with confidence.
+           * 

+           *
+           * 
+           * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
+           * 
+           */
+          public java.util.List<
+                  com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder>
+              getDetectedLanguagesBuilderList() {
+            return getDetectedLanguagesFieldBuilder().getBuilderList();
+          }
+
+          private com.google.protobuf.RepeatedFieldBuilderV3<
+                  com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage,
+                  com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder,
+                  com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>
+              getDetectedLanguagesFieldBuilder() {
+            if (detectedLanguagesBuilder_ == null) {
+              detectedLanguagesBuilder_ =
+                  new com.google.protobuf.RepeatedFieldBuilderV3<
+                      com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage,
+                      com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder,
+                      com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>(
+                      detectedLanguages_,
+                      ((bitField0_ & 0x00000008) != 0),
+                      getParentForChildren(),
+                      isClean());
+              detectedLanguages_ = null;
+            }
+            return detectedLanguagesBuilder_;
+          }
+
+          @java.lang.Override
+          public final Builder setUnknownFields(
+              final com.google.protobuf.UnknownFieldSet unknownFields) {
+            return super.setUnknownFields(unknownFields);
+          }
+
+          @java.lang.Override
+          public final Builder mergeUnknownFields(
+              final com.google.protobuf.UnknownFieldSet unknownFields) {
+            return super.mergeUnknownFields(unknownFields);
+          }
+
+          // @@protoc_insertion_point(builder_scope:google.cloud.documentai.v1beta2.Document.Page.Table.TableCell)
+        }
+
+        // @@protoc_insertion_point(class_scope:google.cloud.documentai.v1beta2.Document.Page.Table.TableCell)
+        private static final com.google.cloud.documentai.v1beta2.Document.Page.Table.TableCell
+            DEFAULT_INSTANCE;
+
+        static {
+          DEFAULT_INSTANCE =
+              new com.google.cloud.documentai.v1beta2.Document.Page.Table.TableCell();
+        }
+
+        public static com.google.cloud.documentai.v1beta2.Document.Page.Table.TableCell
+            getDefaultInstance() {
+          return DEFAULT_INSTANCE;
+        }
+
+        private static final com.google.protobuf.Parser PARSER =
+            new com.google.protobuf.AbstractParser() {
+              @java.lang.Override
+              public TableCell parsePartialFrom(
+                  com.google.protobuf.CodedInputStream input,
+                  com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+                  throws com.google.protobuf.InvalidProtocolBufferException {
+                Builder builder = newBuilder();
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+                } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+                  throw e.setUnfinishedMessage(builder.buildPartial());
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+                } catch (java.io.IOException e) {
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+                      .setUnfinishedMessage(builder.buildPartial());
+                }
+                return builder.buildPartial();
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+
+        public static com.google.protobuf.Parser parser() {
+          return PARSER;
+        }
+
+        @java.lang.Override
+        public com.google.protobuf.Parser getParserForType() {
+          return PARSER;
+        }
+
+        @java.lang.Override
+        public com.google.cloud.documentai.v1beta2.Document.Page.Table.TableCell
+            getDefaultInstanceForType() {
+          return DEFAULT_INSTANCE;
+        }
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+
+      public static final int LAYOUT_FIELD_NUMBER = 1;
+      private com.google.cloud.documentai.v1beta2.Document.Page.Layout layout_;
+      /**
+       *
+       *
+       * 
+       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+       * [Table][google.cloud.documentai.v1beta2.Document.Page.Table].
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+       *
+       * @return Whether the layout field is set.
+       */
+      @java.lang.Override
+      public boolean hasLayout() {
+        return layout_ != null;
+      }
+      /**
+       *
+       *
+       * 
+       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+       * [Table][google.cloud.documentai.v1beta2.Document.Page.Table].
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+       *
+       * @return The layout.
+       */
+      @java.lang.Override
+      public com.google.cloud.documentai.v1beta2.Document.Page.Layout getLayout() {
+        return layout_ == null
+            ? com.google.cloud.documentai.v1beta2.Document.Page.Layout.getDefaultInstance()
+            : layout_;
+      }
+      /**
+       *
+       *
+       * 
+       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+       * [Table][google.cloud.documentai.v1beta2.Document.Page.Table].
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+       */
+      @java.lang.Override
+      public com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder
+          getLayoutOrBuilder() {
+        return layout_ == null
+            ? com.google.cloud.documentai.v1beta2.Document.Page.Layout.getDefaultInstance()
+            : layout_;
+      }
+
+      public static final int HEADER_ROWS_FIELD_NUMBER = 2;
+
+      @SuppressWarnings("serial")
+      private java.util.List
+          headerRows_;
+      /**
+       *
+       *
+       * 
+       * Header rows of the table.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow header_rows = 2;
+       * 
+       */
+      @java.lang.Override
+      public java.util.List
+          getHeaderRowsList() {
+        return headerRows_;
+      }
+      /**
+       *
+       *
+       * 
+       * Header rows of the table.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow header_rows = 2;
+       * 
+       */
+      @java.lang.Override
+      public java.util.List<
+              ? extends com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRowOrBuilder>
+          getHeaderRowsOrBuilderList() {
+        return headerRows_;
+      }
+      /**
+       *
+       *
+       * 
+       * Header rows of the table.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow header_rows = 2;
+       * 
+       */
+      @java.lang.Override
+      public int getHeaderRowsCount() {
+        return headerRows_.size();
+      }
+      /**
+       *
+       *
+       * 
+       * Header rows of the table.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow header_rows = 2;
+       * 
+       */
+      @java.lang.Override
+      public com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow getHeaderRows(
+          int index) {
+        return headerRows_.get(index);
+      }
+      /**
+       *
+       *
+       * 
+       * Header rows of the table.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow header_rows = 2;
+       * 
+       */
+      @java.lang.Override
+      public com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRowOrBuilder
+          getHeaderRowsOrBuilder(int index) {
+        return headerRows_.get(index);
+      }
+
+      public static final int BODY_ROWS_FIELD_NUMBER = 3;
+
+      @SuppressWarnings("serial")
+      private java.util.List
+          bodyRows_;
+      /**
+       *
+       *
+       * 
+       * Body rows of the table.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow body_rows = 3;
+       * 
+       */
+      @java.lang.Override
+      public java.util.List
+          getBodyRowsList() {
+        return bodyRows_;
+      }
+      /**
+       *
+       *
+       * 
+       * Body rows of the table.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow body_rows = 3;
+       * 
+       */
+      @java.lang.Override
+      public java.util.List<
+              ? extends com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRowOrBuilder>
+          getBodyRowsOrBuilderList() {
+        return bodyRows_;
+      }
+      /**
+       *
+       *
+       * 
+       * Body rows of the table.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow body_rows = 3;
+       * 
+       */
+      @java.lang.Override
+      public int getBodyRowsCount() {
+        return bodyRows_.size();
+      }
+      /**
+       *
+       *
+       * 
+       * Body rows of the table.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow body_rows = 3;
+       * 
+       */
+      @java.lang.Override
+      public com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow getBodyRows(
+          int index) {
+        return bodyRows_.get(index);
+      }
+      /**
+       *
+       *
+       * 
+       * Body rows of the table.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow body_rows = 3;
+       * 
+       */
+      @java.lang.Override
+      public com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRowOrBuilder
+          getBodyRowsOrBuilder(int index) {
+        return bodyRows_.get(index);
+      }
+
+      public static final int DETECTED_LANGUAGES_FIELD_NUMBER = 4;
+
+      @SuppressWarnings("serial")
+      private java.util.List
+          detectedLanguages_;
+      /**
+       *
+       *
+       * 
+       * A list of detected languages together with confidence.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
+       * 
+       */
+      @java.lang.Override
+      public java.util.List
+          getDetectedLanguagesList() {
+        return detectedLanguages_;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of detected languages together with confidence.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
+       * 
+       */
+      @java.lang.Override
+      public java.util.List<
+              ? extends com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>
+          getDetectedLanguagesOrBuilderList() {
+        return detectedLanguages_;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of detected languages together with confidence.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
+       * 
+       */
+      @java.lang.Override
+      public int getDetectedLanguagesCount() {
+        return detectedLanguages_.size();
+      }
+      /**
+       *
+       *
+       * 
+       * A list of detected languages together with confidence.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
+       * 
+       */
+      @java.lang.Override
+      public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage
+          getDetectedLanguages(int index) {
+        return detectedLanguages_.get(index);
+      }
+      /**
+       *
+       *
+       * 
+       * A list of detected languages together with confidence.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
+       * 
+       */
+      @java.lang.Override
+      public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder
+          getDetectedLanguagesOrBuilder(int index) {
+        return detectedLanguages_.get(index);
+      }
+
+      public static final int PROVENANCE_FIELD_NUMBER = 5;
+      private com.google.cloud.documentai.v1beta2.Document.Provenance provenance_;
+      /**
+       *
+       *
+       * 
+       * The history of this table.
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 5 [deprecated = true];
+       * 
+       *
+       * @deprecated google.cloud.documentai.v1beta2.Document.Page.Table.provenance is deprecated.
+       *     See google/cloud/documentai/v1beta2/document.proto;l=421
+       * @return Whether the provenance field is set.
+       */
+      @java.lang.Override
+      @java.lang.Deprecated
+      public boolean hasProvenance() {
+        return provenance_ != null;
+      }
+      /**
+       *
+       *
+       * 
+       * The history of this table.
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 5 [deprecated = true];
+       * 
+       *
+       * @deprecated google.cloud.documentai.v1beta2.Document.Page.Table.provenance is deprecated.
+       *     See google/cloud/documentai/v1beta2/document.proto;l=421
+       * @return The provenance.
+       */
+      @java.lang.Override
+      @java.lang.Deprecated
+      public com.google.cloud.documentai.v1beta2.Document.Provenance getProvenance() {
+        return provenance_ == null
+            ? com.google.cloud.documentai.v1beta2.Document.Provenance.getDefaultInstance()
+            : provenance_;
+      }
+      /**
+       *
+       *
+       * 
+       * The history of this table.
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 5 [deprecated = true];
+       * 
+       */
+      @java.lang.Override
+      @java.lang.Deprecated
+      public com.google.cloud.documentai.v1beta2.Document.ProvenanceOrBuilder
+          getProvenanceOrBuilder() {
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+      }
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+      @java.lang.Override
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+        size += getUnknownFields().getSerializedSize();
+        memoizedSize = size;
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+      @java.lang.Override
+      public boolean equals(final java.lang.Object obj) {
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+        if (!(obj instanceof com.google.cloud.documentai.v1beta2.Document.Page.Table)) {
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+        if (hasLayout() != other.hasLayout()) return false;
+        if (hasLayout()) {
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+        }
+        if (!getHeaderRowsList().equals(other.getHeaderRowsList())) return false;
+        if (!getBodyRowsList().equals(other.getBodyRowsList())) return false;
+        if (!getDetectedLanguagesList().equals(other.getDetectedLanguagesList())) return false;
+        if (hasProvenance() != other.hasProvenance()) return false;
+        if (hasProvenance()) {
+          if (!getProvenance().equals(other.getProvenance())) return false;
+        }
+        if (!getUnknownFields().equals(other.getUnknownFields())) return false;
+        return true;
+      }
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+      @java.lang.Override
+      public int hashCode() {
+        if (memoizedHashCode != 0) {
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+        int hash = 41;
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+          hash = (53 * hash) + getBodyRowsList().hashCode();
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+        if (getDetectedLanguagesCount() > 0) {
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+          hash = (53 * hash) + getDetectedLanguagesList().hashCode();
+        }
+        if (hasProvenance()) {
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+          hash = (53 * hash) + getProvenance().hashCode();
+        }
+        hash = (29 * hash) + getUnknownFields().hashCode();
+        memoizedHashCode = hash;
+        return hash;
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+        return PARSER.parseFrom(data);
+      }
+
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Table parseFrom(
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+          throws com.google.protobuf.InvalidProtocolBufferException {
+        return PARSER.parseFrom(data, extensionRegistry);
+      }
+
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Table parseFrom(
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+          throws com.google.protobuf.InvalidProtocolBufferException {
+        return PARSER.parseFrom(data);
+      }
+
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Table parseFrom(
+          com.google.protobuf.ByteString data,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws com.google.protobuf.InvalidProtocolBufferException {
+        return PARSER.parseFrom(data, extensionRegistry);
+      }
+
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Table parseFrom(byte[] data)
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+        return PARSER.parseFrom(data);
+      }
+
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Table parseFrom(
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+        return PARSER.parseFrom(data, extensionRegistry);
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+          throws java.io.IOException {
+        return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
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+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
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+        }
+
+        @java.lang.Override
+        public com.google.cloud.documentai.v1beta2.Document.Page.Table getDefaultInstanceForType() {
+          return com.google.cloud.documentai.v1beta2.Document.Page.Table.getDefaultInstance();
+        }
+
+        @java.lang.Override
+        public com.google.cloud.documentai.v1beta2.Document.Page.Table build() {
+          com.google.cloud.documentai.v1beta2.Document.Page.Table result = buildPartial();
+          if (!result.isInitialized()) {
+            throw newUninitializedMessageException(result);
+          }
+          return result;
+        }
+
+        @java.lang.Override
+        public com.google.cloud.documentai.v1beta2.Document.Page.Table buildPartial() {
+          com.google.cloud.documentai.v1beta2.Document.Page.Table result =
+              new com.google.cloud.documentai.v1beta2.Document.Page.Table(this);
+          buildPartialRepeatedFields(result);
+          if (bitField0_ != 0) {
+            buildPartial0(result);
+          }
+          onBuilt();
+          return result;
+        }
+
+        private void buildPartialRepeatedFields(
+            com.google.cloud.documentai.v1beta2.Document.Page.Table result) {
+          if (headerRowsBuilder_ == null) {
+            if (((bitField0_ & 0x00000002) != 0)) {
+              headerRows_ = java.util.Collections.unmodifiableList(headerRows_);
+              bitField0_ = (bitField0_ & ~0x00000002);
+            }
+            result.headerRows_ = headerRows_;
+          } else {
+            result.headerRows_ = headerRowsBuilder_.build();
+          }
+          if (bodyRowsBuilder_ == null) {
+            if (((bitField0_ & 0x00000004) != 0)) {
+              bodyRows_ = java.util.Collections.unmodifiableList(bodyRows_);
+              bitField0_ = (bitField0_ & ~0x00000004);
+            }
+            result.bodyRows_ = bodyRows_;
+          } else {
+            result.bodyRows_ = bodyRowsBuilder_.build();
+          }
+          if (detectedLanguagesBuilder_ == null) {
+            if (((bitField0_ & 0x00000008) != 0)) {
+              detectedLanguages_ = java.util.Collections.unmodifiableList(detectedLanguages_);
+              bitField0_ = (bitField0_ & ~0x00000008);
+            }
+            result.detectedLanguages_ = detectedLanguages_;
+          } else {
+            result.detectedLanguages_ = detectedLanguagesBuilder_.build();
+          }
+        }
+
+        private void buildPartial0(com.google.cloud.documentai.v1beta2.Document.Page.Table result) {
+          int from_bitField0_ = bitField0_;
+          if (((from_bitField0_ & 0x00000001) != 0)) {
+            result.layout_ = layoutBuilder_ == null ? layout_ : layoutBuilder_.build();
+          }
+          if (((from_bitField0_ & 0x00000010) != 0)) {
+            result.provenance_ =
+                provenanceBuilder_ == null ? provenance_ : provenanceBuilder_.build();
+          }
+        }
+
+        @java.lang.Override
+        public Builder clone() {
+          return super.clone();
+        }
+
+        @java.lang.Override
+        public Builder setField(
+            com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+          return super.setField(field, value);
+        }
+
+        @java.lang.Override
+        public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+          return super.clearField(field);
+        }
+
+        @java.lang.Override
+        public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+          return super.clearOneof(oneof);
+        }
+
+        @java.lang.Override
+        public Builder setRepeatedField(
+            com.google.protobuf.Descriptors.FieldDescriptor field,
+            int index,
+            java.lang.Object value) {
+          return super.setRepeatedField(field, index, value);
+        }
+
+        @java.lang.Override
+        public Builder addRepeatedField(
+            com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+          return super.addRepeatedField(field, value);
+        }
+
+        @java.lang.Override
+        public Builder mergeFrom(com.google.protobuf.Message other) {
+          if (other instanceof com.google.cloud.documentai.v1beta2.Document.Page.Table) {
+            return mergeFrom((com.google.cloud.documentai.v1beta2.Document.Page.Table) other);
+          } else {
+            super.mergeFrom(other);
+            return this;
+          }
+        }
+
+        public Builder mergeFrom(com.google.cloud.documentai.v1beta2.Document.Page.Table other) {
+          if (other == com.google.cloud.documentai.v1beta2.Document.Page.Table.getDefaultInstance())
+            return this;
+          if (other.hasLayout()) {
+            mergeLayout(other.getLayout());
+          }
+          if (headerRowsBuilder_ == null) {
+            if (!other.headerRows_.isEmpty()) {
+              if (headerRows_.isEmpty()) {
+                headerRows_ = other.headerRows_;
+                bitField0_ = (bitField0_ & ~0x00000002);
+              } else {
+                ensureHeaderRowsIsMutable();
+                headerRows_.addAll(other.headerRows_);
+              }
+              onChanged();
+            }
+          } else {
+            if (!other.headerRows_.isEmpty()) {
+              if (headerRowsBuilder_.isEmpty()) {
+                headerRowsBuilder_.dispose();
+                headerRowsBuilder_ = null;
+                headerRows_ = other.headerRows_;
+                bitField0_ = (bitField0_ & ~0x00000002);
+                headerRowsBuilder_ =
+                    com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders
+                        ? getHeaderRowsFieldBuilder()
+                        : null;
+              } else {
+                headerRowsBuilder_.addAllMessages(other.headerRows_);
+              }
+            }
+          }
+          if (bodyRowsBuilder_ == null) {
+            if (!other.bodyRows_.isEmpty()) {
+              if (bodyRows_.isEmpty()) {
+                bodyRows_ = other.bodyRows_;
+                bitField0_ = (bitField0_ & ~0x00000004);
+              } else {
+                ensureBodyRowsIsMutable();
+                bodyRows_.addAll(other.bodyRows_);
+              }
+              onChanged();
+            }
+          } else {
+            if (!other.bodyRows_.isEmpty()) {
+              if (bodyRowsBuilder_.isEmpty()) {
+                bodyRowsBuilder_.dispose();
+                bodyRowsBuilder_ = null;
+                bodyRows_ = other.bodyRows_;
+                bitField0_ = (bitField0_ & ~0x00000004);
+                bodyRowsBuilder_ =
+                    com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders
+                        ? getBodyRowsFieldBuilder()
+                        : null;
+              } else {
+                bodyRowsBuilder_.addAllMessages(other.bodyRows_);
+              }
+            }
+          }
+          if (detectedLanguagesBuilder_ == null) {
+            if (!other.detectedLanguages_.isEmpty()) {
+              if (detectedLanguages_.isEmpty()) {
+                detectedLanguages_ = other.detectedLanguages_;
+                bitField0_ = (bitField0_ & ~0x00000008);
+              } else {
+                ensureDetectedLanguagesIsMutable();
+                detectedLanguages_.addAll(other.detectedLanguages_);
+              }
+              onChanged();
+            }
+          } else {
+            if (!other.detectedLanguages_.isEmpty()) {
+              if (detectedLanguagesBuilder_.isEmpty()) {
+                detectedLanguagesBuilder_.dispose();
+                detectedLanguagesBuilder_ = null;
+                detectedLanguages_ = other.detectedLanguages_;
+                bitField0_ = (bitField0_ & ~0x00000008);
+                detectedLanguagesBuilder_ =
+                    com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders
+                        ? getDetectedLanguagesFieldBuilder()
+                        : null;
+              } else {
+                detectedLanguagesBuilder_.addAllMessages(other.detectedLanguages_);
+              }
+            }
+          }
+          if (other.hasProvenance()) {
+            mergeProvenance(other.getProvenance());
+          }
+          this.mergeUnknownFields(other.getUnknownFields());
+          onChanged();
+          return this;
+        }
+
+        @java.lang.Override
+        public final boolean isInitialized() {
+          return true;
+        }
+
+        @java.lang.Override
+        public Builder mergeFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws java.io.IOException {
+          if (extensionRegistry == null) {
+            throw new java.lang.NullPointerException();
+          }
+          try {
+            boolean done = false;
+            while (!done) {
+              int tag = input.readTag();
+              switch (tag) {
+                case 0:
+                  done = true;
+                  break;
+                case 10:
+                  {
+                    input.readMessage(getLayoutFieldBuilder().getBuilder(), extensionRegistry);
+                    bitField0_ |= 0x00000001;
+                    break;
+                  } // case 10
+                case 18:
+                  {
+                    com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow m =
+                        input.readMessage(
+                            com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow
+                                .parser(),
+                            extensionRegistry);
+                    if (headerRowsBuilder_ == null) {
+                      ensureHeaderRowsIsMutable();
+                      headerRows_.add(m);
+                    } else {
+                      headerRowsBuilder_.addMessage(m);
+                    }
+                    break;
+                  } // case 18
+                case 26:
+                  {
+                    com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow m =
+                        input.readMessage(
+                            com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow
+                                .parser(),
+                            extensionRegistry);
+                    if (bodyRowsBuilder_ == null) {
+                      ensureBodyRowsIsMutable();
+                      bodyRows_.add(m);
+                    } else {
+                      bodyRowsBuilder_.addMessage(m);
+                    }
+                    break;
+                  } // case 26
+                case 34:
+                  {
+                    com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage m =
+                        input.readMessage(
+                            com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage
+                                .parser(),
+                            extensionRegistry);
+                    if (detectedLanguagesBuilder_ == null) {
+                      ensureDetectedLanguagesIsMutable();
+                      detectedLanguages_.add(m);
+                    } else {
+                      detectedLanguagesBuilder_.addMessage(m);
+                    }
+                    break;
+                  } // case 34
+                case 42:
+                  {
+                    input.readMessage(getProvenanceFieldBuilder().getBuilder(), extensionRegistry);
+                    bitField0_ |= 0x00000010;
+                    break;
+                  } // case 42
+                default:
+                  {
+                    if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                      done = true; // was an endgroup tag
+                    }
+                    break;
+                  } // default:
+              } // switch (tag)
+            } // while (!done)
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.unwrapIOException();
+          } finally {
+            onChanged();
+          } // finally
+          return this;
+        }
+
+        private int bitField0_;
+
+        private com.google.cloud.documentai.v1beta2.Document.Page.Layout layout_;
+        private com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.documentai.v1beta2.Document.Page.Layout,
+                com.google.cloud.documentai.v1beta2.Document.Page.Layout.Builder,
+                com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder>
+            layoutBuilder_;
+        /**
+         *
+         *
+         * 
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+         * [Table][google.cloud.documentai.v1beta2.Document.Page.Table].
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+         *
+         * @return Whether the layout field is set.
+         */
+        public boolean hasLayout() {
+          return ((bitField0_ & 0x00000001) != 0);
+        }
+        /**
+         *
+         *
+         * 
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+         * [Table][google.cloud.documentai.v1beta2.Document.Page.Table].
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+         *
+         * @return The layout.
+         */
+        public com.google.cloud.documentai.v1beta2.Document.Page.Layout getLayout() {
+          if (layoutBuilder_ == null) {
+            return layout_ == null
+                ? com.google.cloud.documentai.v1beta2.Document.Page.Layout.getDefaultInstance()
+                : layout_;
+          } else {
+            return layoutBuilder_.getMessage();
+          }
+        }
+        /**
+         *
+         *
+         * 
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+         * [Table][google.cloud.documentai.v1beta2.Document.Page.Table].
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+         */
+        public Builder setLayout(com.google.cloud.documentai.v1beta2.Document.Page.Layout value) {
+          if (layoutBuilder_ == null) {
+            if (value == null) {
+              throw new NullPointerException();
+            }
+            layout_ = value;
+          } else {
+            layoutBuilder_.setMessage(value);
+          }
+          bitField0_ |= 0x00000001;
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+         * [Table][google.cloud.documentai.v1beta2.Document.Page.Table].
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+         */
+        public Builder setLayout(
+            com.google.cloud.documentai.v1beta2.Document.Page.Layout.Builder builderForValue) {
+          if (layoutBuilder_ == null) {
+            layout_ = builderForValue.build();
+          } else {
+            layoutBuilder_.setMessage(builderForValue.build());
+          }
+          bitField0_ |= 0x00000001;
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+         * [Table][google.cloud.documentai.v1beta2.Document.Page.Table].
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+         */
+        public Builder mergeLayout(com.google.cloud.documentai.v1beta2.Document.Page.Layout value) {
+          if (layoutBuilder_ == null) {
+            if (((bitField0_ & 0x00000001) != 0)
+                && layout_ != null
+                && layout_
+                    != com.google.cloud.documentai.v1beta2.Document.Page.Layout
+                        .getDefaultInstance()) {
+              getLayoutBuilder().mergeFrom(value);
+            } else {
+              layout_ = value;
+            }
+          } else {
+            layoutBuilder_.mergeFrom(value);
+          }
+          bitField0_ |= 0x00000001;
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+         * [Table][google.cloud.documentai.v1beta2.Document.Page.Table].
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+         */
+        public Builder clearLayout() {
+          bitField0_ = (bitField0_ & ~0x00000001);
+          layout_ = null;
+          if (layoutBuilder_ != null) {
+            layoutBuilder_.dispose();
+            layoutBuilder_ = null;
+          }
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+         * [Table][google.cloud.documentai.v1beta2.Document.Page.Table].
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+         */
+        public com.google.cloud.documentai.v1beta2.Document.Page.Layout.Builder getLayoutBuilder() {
+          bitField0_ |= 0x00000001;
+          onChanged();
+          return getLayoutFieldBuilder().getBuilder();
+        }
+        /**
+         *
+         *
+         * 
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+         * [Table][google.cloud.documentai.v1beta2.Document.Page.Table].
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+         */
+        public com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder
+            getLayoutOrBuilder() {
+          if (layoutBuilder_ != null) {
+            return layoutBuilder_.getMessageOrBuilder();
+          } else {
+            return layout_ == null
+                ? com.google.cloud.documentai.v1beta2.Document.Page.Layout.getDefaultInstance()
+                : layout_;
+          }
+        }
+        /**
+         *
+         *
+         * 
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+         * [Table][google.cloud.documentai.v1beta2.Document.Page.Table].
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+         */
+        private com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.documentai.v1beta2.Document.Page.Layout,
+                com.google.cloud.documentai.v1beta2.Document.Page.Layout.Builder,
+                com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder>
+            getLayoutFieldBuilder() {
+          if (layoutBuilder_ == null) {
+            layoutBuilder_ =
+                new com.google.protobuf.SingleFieldBuilderV3<
+                    com.google.cloud.documentai.v1beta2.Document.Page.Layout,
+                    com.google.cloud.documentai.v1beta2.Document.Page.Layout.Builder,
+                    com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder>(
+                    getLayout(), getParentForChildren(), isClean());
+            layout_ = null;
+          }
+          return layoutBuilder_;
+        }
+
+        private java.util.List
+            headerRows_ = java.util.Collections.emptyList();
+
+        private void ensureHeaderRowsIsMutable() {
+          if (!((bitField0_ & 0x00000002) != 0)) {
+            headerRows_ =
+                new java.util.ArrayList<
+                    com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow>(headerRows_);
+            bitField0_ |= 0x00000002;
+          }
+        }
+
+        private com.google.protobuf.RepeatedFieldBuilderV3<
+                com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow,
+                com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow.Builder,
+                com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRowOrBuilder>
+            headerRowsBuilder_;
+
+        /**
+         *
+         *
+         * 
+         * Header rows of the table.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow header_rows = 2;
+         * 
+         */
+        public java.util.List
+            getHeaderRowsList() {
+          if (headerRowsBuilder_ == null) {
+            return java.util.Collections.unmodifiableList(headerRows_);
+          } else {
+            return headerRowsBuilder_.getMessageList();
+          }
+        }
+        /**
+         *
+         *
+         * 
+         * Header rows of the table.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow header_rows = 2;
+         * 
+         */
+        public int getHeaderRowsCount() {
+          if (headerRowsBuilder_ == null) {
+            return headerRows_.size();
+          } else {
+            return headerRowsBuilder_.getCount();
+          }
+        }
+        /**
+         *
+         *
+         * 
+         * Header rows of the table.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow header_rows = 2;
+         * 
+         */
+        public com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow getHeaderRows(
+            int index) {
+          if (headerRowsBuilder_ == null) {
+            return headerRows_.get(index);
+          } else {
+            return headerRowsBuilder_.getMessage(index);
+          }
+        }
+        /**
+         *
+         *
+         * 
+         * Header rows of the table.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow header_rows = 2;
+         * 
+         */
+        public Builder setHeaderRows(
+            int index, com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow value) {
+          if (headerRowsBuilder_ == null) {
+            if (value == null) {
+              throw new NullPointerException();
+            }
+            ensureHeaderRowsIsMutable();
+            headerRows_.set(index, value);
+            onChanged();
+          } else {
+            headerRowsBuilder_.setMessage(index, value);
+          }
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * Header rows of the table.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow header_rows = 2;
+         * 
+         */
+        public Builder setHeaderRows(
+            int index,
+            com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow.Builder
+                builderForValue) {
+          if (headerRowsBuilder_ == null) {
+            ensureHeaderRowsIsMutable();
+            headerRows_.set(index, builderForValue.build());
+            onChanged();
+          } else {
+            headerRowsBuilder_.setMessage(index, builderForValue.build());
+          }
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * Header rows of the table.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow header_rows = 2;
+         * 
+         */
+        public Builder addHeaderRows(
+            com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow value) {
+          if (headerRowsBuilder_ == null) {
+            if (value == null) {
+              throw new NullPointerException();
+            }
+            ensureHeaderRowsIsMutable();
+            headerRows_.add(value);
+            onChanged();
+          } else {
+            headerRowsBuilder_.addMessage(value);
+          }
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * Header rows of the table.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow header_rows = 2;
+         * 
+         */
+        public Builder addHeaderRows(
+            int index, com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow value) {
+          if (headerRowsBuilder_ == null) {
+            if (value == null) {
+              throw new NullPointerException();
+            }
+            ensureHeaderRowsIsMutable();
+            headerRows_.add(index, value);
+            onChanged();
+          } else {
+            headerRowsBuilder_.addMessage(index, value);
+          }
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * Header rows of the table.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow header_rows = 2;
+         * 
+         */
+        public Builder addHeaderRows(
+            com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow.Builder
+                builderForValue) {
+          if (headerRowsBuilder_ == null) {
+            ensureHeaderRowsIsMutable();
+            headerRows_.add(builderForValue.build());
+            onChanged();
+          } else {
+            headerRowsBuilder_.addMessage(builderForValue.build());
+          }
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * Header rows of the table.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow header_rows = 2;
+         * 
+         */
+        public Builder addHeaderRows(
+            int index,
+            com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow.Builder
+                builderForValue) {
+          if (headerRowsBuilder_ == null) {
+            ensureHeaderRowsIsMutable();
+            headerRows_.add(index, builderForValue.build());
+            onChanged();
+          } else {
+            headerRowsBuilder_.addMessage(index, builderForValue.build());
+          }
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * Header rows of the table.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow header_rows = 2;
+         * 
+         */
+        public Builder addAllHeaderRows(
+            java.lang.Iterable<
+                    ? extends com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow>
+                values) {
+          if (headerRowsBuilder_ == null) {
+            ensureHeaderRowsIsMutable();
+            com.google.protobuf.AbstractMessageLite.Builder.addAll(values, headerRows_);
+            onChanged();
+          } else {
+            headerRowsBuilder_.addAllMessages(values);
+          }
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * Header rows of the table.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow header_rows = 2;
+         * 
+         */
+        public Builder clearHeaderRows() {
+          if (headerRowsBuilder_ == null) {
+            headerRows_ = java.util.Collections.emptyList();
+            bitField0_ = (bitField0_ & ~0x00000002);
+            onChanged();
+          } else {
+            headerRowsBuilder_.clear();
+          }
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * Header rows of the table.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow header_rows = 2;
+         * 
+         */
+        public Builder removeHeaderRows(int index) {
+          if (headerRowsBuilder_ == null) {
+            ensureHeaderRowsIsMutable();
+            headerRows_.remove(index);
+            onChanged();
+          } else {
+            headerRowsBuilder_.remove(index);
+          }
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * Header rows of the table.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow header_rows = 2;
+         * 
+         */
+        public com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow.Builder
+            getHeaderRowsBuilder(int index) {
+          return getHeaderRowsFieldBuilder().getBuilder(index);
+        }
+        /**
+         *
+         *
+         * 
+         * Header rows of the table.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow header_rows = 2;
+         * 
+         */
+        public com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRowOrBuilder
+            getHeaderRowsOrBuilder(int index) {
+          if (headerRowsBuilder_ == null) {
+            return headerRows_.get(index);
+          } else {
+            return headerRowsBuilder_.getMessageOrBuilder(index);
+          }
+        }
+        /**
+         *
+         *
+         * 
+         * Header rows of the table.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow header_rows = 2;
+         * 
+         */
+        public java.util.List<
+                ? extends com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRowOrBuilder>
+            getHeaderRowsOrBuilderList() {
+          if (headerRowsBuilder_ != null) {
+            return headerRowsBuilder_.getMessageOrBuilderList();
+          } else {
+            return java.util.Collections.unmodifiableList(headerRows_);
+          }
+        }
+        /**
+         *
+         *
+         * 
+         * Header rows of the table.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow header_rows = 2;
+         * 
+         */
+        public com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow.Builder
+            addHeaderRowsBuilder() {
+          return getHeaderRowsFieldBuilder()
+              .addBuilder(
+                  com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow
+                      .getDefaultInstance());
+        }
+        /**
+         *
+         *
+         * 
+         * Header rows of the table.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow header_rows = 2;
+         * 
+         */
+        public com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow.Builder
+            addHeaderRowsBuilder(int index) {
+          return getHeaderRowsFieldBuilder()
+              .addBuilder(
+                  index,
+                  com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow
+                      .getDefaultInstance());
+        }
+        /**
+         *
+         *
+         * 
+         * Header rows of the table.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow header_rows = 2;
+         * 
+         */
+        public java.util.List<
+                com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow.Builder>
+            getHeaderRowsBuilderList() {
+          return getHeaderRowsFieldBuilder().getBuilderList();
+        }
+
+        private com.google.protobuf.RepeatedFieldBuilderV3<
+                com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow,
+                com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow.Builder,
+                com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRowOrBuilder>
+            getHeaderRowsFieldBuilder() {
+          if (headerRowsBuilder_ == null) {
+            headerRowsBuilder_ =
+                new com.google.protobuf.RepeatedFieldBuilderV3<
+                    com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow,
+                    com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow.Builder,
+                    com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRowOrBuilder>(
+                    headerRows_,
+                    ((bitField0_ & 0x00000002) != 0),
+                    getParentForChildren(),
+                    isClean());
+            headerRows_ = null;
+          }
+          return headerRowsBuilder_;
+        }
+
+        private java.util.List
+            bodyRows_ = java.util.Collections.emptyList();
+
+        private void ensureBodyRowsIsMutable() {
+          if (!((bitField0_ & 0x00000004) != 0)) {
+            bodyRows_ =
+                new java.util.ArrayList<
+                    com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow>(bodyRows_);
+            bitField0_ |= 0x00000004;
+          }
+        }
+
+        private com.google.protobuf.RepeatedFieldBuilderV3<
+                com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow,
+                com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow.Builder,
+                com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRowOrBuilder>
+            bodyRowsBuilder_;
+
+        /**
+         *
+         *
+         * 
+         * Body rows of the table.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow body_rows = 3;
+         * 
+         */
+        public java.util.List
+            getBodyRowsList() {
+          if (bodyRowsBuilder_ == null) {
+            return java.util.Collections.unmodifiableList(bodyRows_);
+          } else {
+            return bodyRowsBuilder_.getMessageList();
+          }
+        }
+        /**
+         *
+         *
+         * 
+         * Body rows of the table.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow body_rows = 3;
+         * 
+         */
+        public int getBodyRowsCount() {
+          if (bodyRowsBuilder_ == null) {
+            return bodyRows_.size();
+          } else {
+            return bodyRowsBuilder_.getCount();
+          }
+        }
+        /**
+         *
+         *
+         * 
+         * Body rows of the table.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow body_rows = 3;
+         * 
+         */
+        public com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow getBodyRows(
+            int index) {
+          if (bodyRowsBuilder_ == null) {
+            return bodyRows_.get(index);
+          } else {
+            return bodyRowsBuilder_.getMessage(index);
+          }
+        }
+        /**
+         *
+         *
+         * 
+         * Body rows of the table.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow body_rows = 3;
+         * 
+         */
+        public Builder setBodyRows(
+            int index, com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow value) {
+          if (bodyRowsBuilder_ == null) {
+            if (value == null) {
+              throw new NullPointerException();
+            }
+            ensureBodyRowsIsMutable();
+            bodyRows_.set(index, value);
+            onChanged();
+          } else {
+            bodyRowsBuilder_.setMessage(index, value);
+          }
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * Body rows of the table.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow body_rows = 3;
+         * 
+         */
+        public Builder setBodyRows(
+            int index,
+            com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow.Builder
+                builderForValue) {
+          if (bodyRowsBuilder_ == null) {
+            ensureBodyRowsIsMutable();
+            bodyRows_.set(index, builderForValue.build());
+            onChanged();
+          } else {
+            bodyRowsBuilder_.setMessage(index, builderForValue.build());
+          }
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * Body rows of the table.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow body_rows = 3;
+         * 
+         */
+        public Builder addBodyRows(
+            com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow value) {
+          if (bodyRowsBuilder_ == null) {
+            if (value == null) {
+              throw new NullPointerException();
+            }
+            ensureBodyRowsIsMutable();
+            bodyRows_.add(value);
+            onChanged();
+          } else {
+            bodyRowsBuilder_.addMessage(value);
+          }
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * Body rows of the table.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow body_rows = 3;
+         * 
+         */
+        public Builder addBodyRows(
+            int index, com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow value) {
+          if (bodyRowsBuilder_ == null) {
+            if (value == null) {
+              throw new NullPointerException();
+            }
+            ensureBodyRowsIsMutable();
+            bodyRows_.add(index, value);
+            onChanged();
+          } else {
+            bodyRowsBuilder_.addMessage(index, value);
+          }
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * Body rows of the table.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow body_rows = 3;
+         * 
+         */
+        public Builder addBodyRows(
+            com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow.Builder
+                builderForValue) {
+          if (bodyRowsBuilder_ == null) {
             ensureBodyRowsIsMutable();
             bodyRows_.add(builderForValue.build());
             onChanged();
           } else {
-            bodyRowsBuilder_.addMessage(builderForValue.build());
+            bodyRowsBuilder_.addMessage(builderForValue.build());
+          }
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * Body rows of the table.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow body_rows = 3;
+         * 
+         */
+        public Builder addBodyRows(
+            int index,
+            com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow.Builder
+                builderForValue) {
+          if (bodyRowsBuilder_ == null) {
+            ensureBodyRowsIsMutable();
+            bodyRows_.add(index, builderForValue.build());
+            onChanged();
+          } else {
+            bodyRowsBuilder_.addMessage(index, builderForValue.build());
+          }
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * Body rows of the table.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow body_rows = 3;
+         * 
+         */
+        public Builder addAllBodyRows(
+            java.lang.Iterable<
+                    ? extends com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow>
+                values) {
+          if (bodyRowsBuilder_ == null) {
+            ensureBodyRowsIsMutable();
+            com.google.protobuf.AbstractMessageLite.Builder.addAll(values, bodyRows_);
+            onChanged();
+          } else {
+            bodyRowsBuilder_.addAllMessages(values);
+          }
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * Body rows of the table.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow body_rows = 3;
+         * 
+         */
+        public Builder clearBodyRows() {
+          if (bodyRowsBuilder_ == null) {
+            bodyRows_ = java.util.Collections.emptyList();
+            bitField0_ = (bitField0_ & ~0x00000004);
+            onChanged();
+          } else {
+            bodyRowsBuilder_.clear();
+          }
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * Body rows of the table.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow body_rows = 3;
+         * 
+         */
+        public Builder removeBodyRows(int index) {
+          if (bodyRowsBuilder_ == null) {
+            ensureBodyRowsIsMutable();
+            bodyRows_.remove(index);
+            onChanged();
+          } else {
+            bodyRowsBuilder_.remove(index);
+          }
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * Body rows of the table.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow body_rows = 3;
+         * 
+         */
+        public com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow.Builder
+            getBodyRowsBuilder(int index) {
+          return getBodyRowsFieldBuilder().getBuilder(index);
+        }
+        /**
+         *
+         *
+         * 
+         * Body rows of the table.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow body_rows = 3;
+         * 
+         */
+        public com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRowOrBuilder
+            getBodyRowsOrBuilder(int index) {
+          if (bodyRowsBuilder_ == null) {
+            return bodyRows_.get(index);
+          } else {
+            return bodyRowsBuilder_.getMessageOrBuilder(index);
+          }
+        }
+        /**
+         *
+         *
+         * 
+         * Body rows of the table.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow body_rows = 3;
+         * 
+         */
+        public java.util.List<
+                ? extends com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRowOrBuilder>
+            getBodyRowsOrBuilderList() {
+          if (bodyRowsBuilder_ != null) {
+            return bodyRowsBuilder_.getMessageOrBuilderList();
+          } else {
+            return java.util.Collections.unmodifiableList(bodyRows_);
+          }
+        }
+        /**
+         *
+         *
+         * 
+         * Body rows of the table.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow body_rows = 3;
+         * 
+         */
+        public com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow.Builder
+            addBodyRowsBuilder() {
+          return getBodyRowsFieldBuilder()
+              .addBuilder(
+                  com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow
+                      .getDefaultInstance());
+        }
+        /**
+         *
+         *
+         * 
+         * Body rows of the table.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow body_rows = 3;
+         * 
+         */
+        public com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow.Builder
+            addBodyRowsBuilder(int index) {
+          return getBodyRowsFieldBuilder()
+              .addBuilder(
+                  index,
+                  com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow
+                      .getDefaultInstance());
+        }
+        /**
+         *
+         *
+         * 
+         * Body rows of the table.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow body_rows = 3;
+         * 
+         */
+        public java.util.List<
+                com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow.Builder>
+            getBodyRowsBuilderList() {
+          return getBodyRowsFieldBuilder().getBuilderList();
+        }
+
+        private com.google.protobuf.RepeatedFieldBuilderV3<
+                com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow,
+                com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow.Builder,
+                com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRowOrBuilder>
+            getBodyRowsFieldBuilder() {
+          if (bodyRowsBuilder_ == null) {
+            bodyRowsBuilder_ =
+                new com.google.protobuf.RepeatedFieldBuilderV3<
+                    com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow,
+                    com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow.Builder,
+                    com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRowOrBuilder>(
+                    bodyRows_, ((bitField0_ & 0x00000004) != 0), getParentForChildren(), isClean());
+            bodyRows_ = null;
+          }
+          return bodyRowsBuilder_;
+        }
+
+        private java.util.List
+            detectedLanguages_ = java.util.Collections.emptyList();
+
+        private void ensureDetectedLanguagesIsMutable() {
+          if (!((bitField0_ & 0x00000008) != 0)) {
+            detectedLanguages_ =
+                new java.util.ArrayList<
+                    com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage>(
+                    detectedLanguages_);
+            bitField0_ |= 0x00000008;
+          }
+        }
+
+        private com.google.protobuf.RepeatedFieldBuilderV3<
+                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage,
+                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder,
+                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>
+            detectedLanguagesBuilder_;
+
+        /**
+         *
+         *
+         * 
+         * A list of detected languages together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
+         * 
+         */
+        public java.util.List
+            getDetectedLanguagesList() {
+          if (detectedLanguagesBuilder_ == null) {
+            return java.util.Collections.unmodifiableList(detectedLanguages_);
+          } else {
+            return detectedLanguagesBuilder_.getMessageList();
+          }
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
+         * 
+         */
+        public int getDetectedLanguagesCount() {
+          if (detectedLanguagesBuilder_ == null) {
+            return detectedLanguages_.size();
+          } else {
+            return detectedLanguagesBuilder_.getCount();
+          }
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
+         * 
+         */
+        public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage
+            getDetectedLanguages(int index) {
+          if (detectedLanguagesBuilder_ == null) {
+            return detectedLanguages_.get(index);
+          } else {
+            return detectedLanguagesBuilder_.getMessage(index);
+          }
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
+         * 
+         */
+        public Builder setDetectedLanguages(
+            int index, com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value) {
+          if (detectedLanguagesBuilder_ == null) {
+            if (value == null) {
+              throw new NullPointerException();
+            }
+            ensureDetectedLanguagesIsMutable();
+            detectedLanguages_.set(index, value);
+            onChanged();
+          } else {
+            detectedLanguagesBuilder_.setMessage(index, value);
+          }
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
+         * 
+         */
+        public Builder setDetectedLanguages(
+            int index,
+            com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
+                builderForValue) {
+          if (detectedLanguagesBuilder_ == null) {
+            ensureDetectedLanguagesIsMutable();
+            detectedLanguages_.set(index, builderForValue.build());
+            onChanged();
+          } else {
+            detectedLanguagesBuilder_.setMessage(index, builderForValue.build());
+          }
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
+         * 
+         */
+        public Builder addDetectedLanguages(
+            com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value) {
+          if (detectedLanguagesBuilder_ == null) {
+            if (value == null) {
+              throw new NullPointerException();
+            }
+            ensureDetectedLanguagesIsMutable();
+            detectedLanguages_.add(value);
+            onChanged();
+          } else {
+            detectedLanguagesBuilder_.addMessage(value);
+          }
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
+         * 
+         */
+        public Builder addDetectedLanguages(
+            int index, com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value) {
+          if (detectedLanguagesBuilder_ == null) {
+            if (value == null) {
+              throw new NullPointerException();
+            }
+            ensureDetectedLanguagesIsMutable();
+            detectedLanguages_.add(index, value);
+            onChanged();
+          } else {
+            detectedLanguagesBuilder_.addMessage(index, value);
+          }
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
+         * 
+         */
+        public Builder addDetectedLanguages(
+            com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
+                builderForValue) {
+          if (detectedLanguagesBuilder_ == null) {
+            ensureDetectedLanguagesIsMutable();
+            detectedLanguages_.add(builderForValue.build());
+            onChanged();
+          } else {
+            detectedLanguagesBuilder_.addMessage(builderForValue.build());
+          }
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
+         * 
+         */
+        public Builder addDetectedLanguages(
+            int index,
+            com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
+                builderForValue) {
+          if (detectedLanguagesBuilder_ == null) {
+            ensureDetectedLanguagesIsMutable();
+            detectedLanguages_.add(index, builderForValue.build());
+            onChanged();
+          } else {
+            detectedLanguagesBuilder_.addMessage(index, builderForValue.build());
+          }
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
+         * 
+         */
+        public Builder addAllDetectedLanguages(
+            java.lang.Iterable<
+                    ? extends com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage>
+                values) {
+          if (detectedLanguagesBuilder_ == null) {
+            ensureDetectedLanguagesIsMutable();
+            com.google.protobuf.AbstractMessageLite.Builder.addAll(values, detectedLanguages_);
+            onChanged();
+          } else {
+            detectedLanguagesBuilder_.addAllMessages(values);
+          }
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
+         * 
+         */
+        public Builder clearDetectedLanguages() {
+          if (detectedLanguagesBuilder_ == null) {
+            detectedLanguages_ = java.util.Collections.emptyList();
+            bitField0_ = (bitField0_ & ~0x00000008);
+            onChanged();
+          } else {
+            detectedLanguagesBuilder_.clear();
+          }
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
+         * 
+         */
+        public Builder removeDetectedLanguages(int index) {
+          if (detectedLanguagesBuilder_ == null) {
+            ensureDetectedLanguagesIsMutable();
+            detectedLanguages_.remove(index);
+            onChanged();
+          } else {
+            detectedLanguagesBuilder_.remove(index);
+          }
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
+         * 
+         */
+        public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
+            getDetectedLanguagesBuilder(int index) {
+          return getDetectedLanguagesFieldBuilder().getBuilder(index);
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
+         * 
+         */
+        public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder
+            getDetectedLanguagesOrBuilder(int index) {
+          if (detectedLanguagesBuilder_ == null) {
+            return detectedLanguages_.get(index);
+          } else {
+            return detectedLanguagesBuilder_.getMessageOrBuilder(index);
+          }
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
+         * 
+         */
+        public java.util.List<
+                ? extends
+                    com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>
+            getDetectedLanguagesOrBuilderList() {
+          if (detectedLanguagesBuilder_ != null) {
+            return detectedLanguagesBuilder_.getMessageOrBuilderList();
+          } else {
+            return java.util.Collections.unmodifiableList(detectedLanguages_);
+          }
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
+         * 
+         */
+        public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
+            addDetectedLanguagesBuilder() {
+          return getDetectedLanguagesFieldBuilder()
+              .addBuilder(
+                  com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage
+                      .getDefaultInstance());
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
+         * 
+         */
+        public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
+            addDetectedLanguagesBuilder(int index) {
+          return getDetectedLanguagesFieldBuilder()
+              .addBuilder(
+                  index,
+                  com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage
+                      .getDefaultInstance());
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
+         * 
+         */
+        public java.util.List<
+                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder>
+            getDetectedLanguagesBuilderList() {
+          return getDetectedLanguagesFieldBuilder().getBuilderList();
+        }
+
+        private com.google.protobuf.RepeatedFieldBuilderV3<
+                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage,
+                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder,
+                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>
+            getDetectedLanguagesFieldBuilder() {
+          if (detectedLanguagesBuilder_ == null) {
+            detectedLanguagesBuilder_ =
+                new com.google.protobuf.RepeatedFieldBuilderV3<
+                    com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage,
+                    com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder,
+                    com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>(
+                    detectedLanguages_,
+                    ((bitField0_ & 0x00000008) != 0),
+                    getParentForChildren(),
+                    isClean());
+            detectedLanguages_ = null;
+          }
+          return detectedLanguagesBuilder_;
+        }
+
+        private com.google.cloud.documentai.v1beta2.Document.Provenance provenance_;
+        private com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.documentai.v1beta2.Document.Provenance,
+                com.google.cloud.documentai.v1beta2.Document.Provenance.Builder,
+                com.google.cloud.documentai.v1beta2.Document.ProvenanceOrBuilder>
+            provenanceBuilder_;
+        /**
+         *
+         *
+         * 
+         * The history of this table.
+         * 

+         *
+         * 
+         * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 5 [deprecated = true];
+         * 
+         *
+         * @deprecated google.cloud.documentai.v1beta2.Document.Page.Table.provenance is deprecated.
+         *     See google/cloud/documentai/v1beta2/document.proto;l=421
+         * @return Whether the provenance field is set.
+         */
+        @java.lang.Deprecated
+        public boolean hasProvenance() {
+          return ((bitField0_ & 0x00000010) != 0);
+        }
+        /**
+         *
+         *
+         * 
+         * The history of this table.
+         * 

+         *
+         * 
+         * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 5 [deprecated = true];
+         * 
+         *
+         * @deprecated google.cloud.documentai.v1beta2.Document.Page.Table.provenance is deprecated.
+         *     See google/cloud/documentai/v1beta2/document.proto;l=421
+         * @return The provenance.
+         */
+        @java.lang.Deprecated
+        public com.google.cloud.documentai.v1beta2.Document.Provenance getProvenance() {
+          if (provenanceBuilder_ == null) {
+            return provenance_ == null
+                ? com.google.cloud.documentai.v1beta2.Document.Provenance.getDefaultInstance()
+                : provenance_;
+          } else {
+            return provenanceBuilder_.getMessage();
+          }
+        }
+        /**
+         *
+         *
+         * 
+         * The history of this table.
+         * 

+         *
+         * 
+         * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 5 [deprecated = true];
+         * 
+         */
+        @java.lang.Deprecated
+        public Builder setProvenance(
+            com.google.cloud.documentai.v1beta2.Document.Provenance value) {
+          if (provenanceBuilder_ == null) {
+            if (value == null) {
+              throw new NullPointerException();
+            }
+            provenance_ = value;
+          } else {
+            provenanceBuilder_.setMessage(value);
+          }
+          bitField0_ |= 0x00000010;
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * The history of this table.
+         * 

+         *
+         * 
+         * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 5 [deprecated = true];
+         * 
+         */
+        @java.lang.Deprecated
+        public Builder setProvenance(
+            com.google.cloud.documentai.v1beta2.Document.Provenance.Builder builderForValue) {
+          if (provenanceBuilder_ == null) {
+            provenance_ = builderForValue.build();
+          } else {
+            provenanceBuilder_.setMessage(builderForValue.build());
+          }
+          bitField0_ |= 0x00000010;
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * The history of this table.
+         * 

+         *
+         * 
+         * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 5 [deprecated = true];
+         * 
+         */
+        @java.lang.Deprecated
+        public Builder mergeProvenance(
+            com.google.cloud.documentai.v1beta2.Document.Provenance value) {
+          if (provenanceBuilder_ == null) {
+            if (((bitField0_ & 0x00000010) != 0)
+                && provenance_ != null
+                && provenance_
+                    != com.google.cloud.documentai.v1beta2.Document.Provenance
+                        .getDefaultInstance()) {
+              getProvenanceBuilder().mergeFrom(value);
+            } else {
+              provenance_ = value;
+            }
+          } else {
+            provenanceBuilder_.mergeFrom(value);
+          }
+          bitField0_ |= 0x00000010;
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * The history of this table.
+         * 

+         *
+         * 
+         * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 5 [deprecated = true];
+         * 
+         */
+        @java.lang.Deprecated
+        public Builder clearProvenance() {
+          bitField0_ = (bitField0_ & ~0x00000010);
+          provenance_ = null;
+          if (provenanceBuilder_ != null) {
+            provenanceBuilder_.dispose();
+            provenanceBuilder_ = null;
+          }
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * The history of this table.
+         * 

+         *
+         * 
+         * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 5 [deprecated = true];
+         * 
+         */
+        @java.lang.Deprecated
+        public com.google.cloud.documentai.v1beta2.Document.Provenance.Builder
+            getProvenanceBuilder() {
+          bitField0_ |= 0x00000010;
+          onChanged();
+          return getProvenanceFieldBuilder().getBuilder();
+        }
+        /**
+         *
+         *
+         * 
+         * The history of this table.
+         * 

+         *
+         * 
+         * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 5 [deprecated = true];
+         * 
+         */
+        @java.lang.Deprecated
+        public com.google.cloud.documentai.v1beta2.Document.ProvenanceOrBuilder
+            getProvenanceOrBuilder() {
+          if (provenanceBuilder_ != null) {
+            return provenanceBuilder_.getMessageOrBuilder();
+          } else {
+            return provenance_ == null
+                ? com.google.cloud.documentai.v1beta2.Document.Provenance.getDefaultInstance()
+                : provenance_;
+          }
+        }
+        /**
+         *
+         *
+         * 
+         * The history of this table.
+         * 

+         *
+         * 
+         * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 5 [deprecated = true];
+         * 
+         */
+        private com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.documentai.v1beta2.Document.Provenance,
+                com.google.cloud.documentai.v1beta2.Document.Provenance.Builder,
+                com.google.cloud.documentai.v1beta2.Document.ProvenanceOrBuilder>
+            getProvenanceFieldBuilder() {
+          if (provenanceBuilder_ == null) {
+            provenanceBuilder_ =
+                new com.google.protobuf.SingleFieldBuilderV3<
+                    com.google.cloud.documentai.v1beta2.Document.Provenance,
+                    com.google.cloud.documentai.v1beta2.Document.Provenance.Builder,
+                    com.google.cloud.documentai.v1beta2.Document.ProvenanceOrBuilder>(
+                    getProvenance(), getParentForChildren(), isClean());
+            provenance_ = null;
+          }
+          return provenanceBuilder_;
+        }
+
+        @java.lang.Override
+        public final Builder setUnknownFields(
+            final com.google.protobuf.UnknownFieldSet unknownFields) {
+          return super.setUnknownFields(unknownFields);
+        }
+
+        @java.lang.Override
+        public final Builder mergeUnknownFields(
+            final com.google.protobuf.UnknownFieldSet unknownFields) {
+          return super.mergeUnknownFields(unknownFields);
+        }
+
+        // @@protoc_insertion_point(builder_scope:google.cloud.documentai.v1beta2.Document.Page.Table)
+      }
+
+      // @@protoc_insertion_point(class_scope:google.cloud.documentai.v1beta2.Document.Page.Table)
+      private static final com.google.cloud.documentai.v1beta2.Document.Page.Table DEFAULT_INSTANCE;
+
+      static {
+        DEFAULT_INSTANCE = new com.google.cloud.documentai.v1beta2.Document.Page.Table();
+      }
+
+      public static com.google.cloud.documentai.v1beta2.Document.Page.Table getDefaultInstance() {
+        return DEFAULT_INSTANCE;
+      }
+
+      private static final com.google.protobuf.Parser PARSER =
+          new com.google.protobuf.AbstractParser
() {
+            @java.lang.Override
+            public Table parsePartialFrom(
+                com.google.protobuf.CodedInputStream input,
+                com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+                throws com.google.protobuf.InvalidProtocolBufferException {
+              Builder builder = newBuilder();
+              try {
+                builder.mergeFrom(input, extensionRegistry);
+              } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+                throw e.setUnfinishedMessage(builder.buildPartial());
+              } catch (com.google.protobuf.UninitializedMessageException e) {
+                throw e.asInvalidProtocolBufferException()
+                    .setUnfinishedMessage(builder.buildPartial());
+              } catch (java.io.IOException e) {
+                throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                    .setUnfinishedMessage(builder.buildPartial());
+              }
+              return builder.buildPartial();
+            }
+          };
+
+      public static com.google.protobuf.Parser
 parser() {
+        return PARSER;
+      }
+
+      @java.lang.Override
+      public com.google.protobuf.Parser
 getParserForType() {
+        return PARSER;
+      }
+
+      @java.lang.Override
+      public com.google.cloud.documentai.v1beta2.Document.Page.Table getDefaultInstanceForType() {
+        return DEFAULT_INSTANCE;
+      }
+    }
+
+    public interface FormFieldOrBuilder
+        extends
+        // @@protoc_insertion_point(interface_extends:google.cloud.documentai.v1beta2.Document.Page.FormField)
+        com.google.protobuf.MessageOrBuilder {
+
+      /**
+       *
+       *
+       * 
+       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for the
+       * [FormField][google.cloud.documentai.v1beta2.Document.Page.FormField]
+       * name. e.g. `Address`, `Email`, `Grand total`, `Phone number`, etc.
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Page.Layout field_name = 1;
+       *
+       * @return Whether the fieldName field is set.
+       */
+      boolean hasFieldName();
+      /**
+       *
+       *
+       * 
+       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for the
+       * [FormField][google.cloud.documentai.v1beta2.Document.Page.FormField]
+       * name. e.g. `Address`, `Email`, `Grand total`, `Phone number`, etc.
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Page.Layout field_name = 1;
+       *
+       * @return The fieldName.
+       */
+      com.google.cloud.documentai.v1beta2.Document.Page.Layout getFieldName();
+      /**
+       *
+       *
+       * 
+       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for the
+       * [FormField][google.cloud.documentai.v1beta2.Document.Page.FormField]
+       * name. e.g. `Address`, `Email`, `Grand total`, `Phone number`, etc.
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Page.Layout field_name = 1;
+       */
+      com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder getFieldNameOrBuilder();
+
+      /**
+       *
+       *
+       * 
+       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for the
+       * [FormField][google.cloud.documentai.v1beta2.Document.Page.FormField]
+       * value.
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Page.Layout field_value = 2;
+       *
+       * @return Whether the fieldValue field is set.
+       */
+      boolean hasFieldValue();
+      /**
+       *
+       *
+       * 
+       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for the
+       * [FormField][google.cloud.documentai.v1beta2.Document.Page.FormField]
+       * value.
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Page.Layout field_value = 2;
+       *
+       * @return The fieldValue.
+       */
+      com.google.cloud.documentai.v1beta2.Document.Page.Layout getFieldValue();
+      /**
+       *
+       *
+       * 
+       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for the
+       * [FormField][google.cloud.documentai.v1beta2.Document.Page.FormField]
+       * value.
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Page.Layout field_value = 2;
+       */
+      com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder getFieldValueOrBuilder();
+
+      /**
+       *
+       *
+       * 
+       * A list of detected languages for name together with confidence.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage name_detected_languages = 3;
+       * 
+       */
+      java.util.List
+          getNameDetectedLanguagesList();
+      /**
+       *
+       *
+       * 
+       * A list of detected languages for name together with confidence.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage name_detected_languages = 3;
+       * 
+       */
+      com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage getNameDetectedLanguages(
+          int index);
+      /**
+       *
+       *
+       * 
+       * A list of detected languages for name together with confidence.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage name_detected_languages = 3;
+       * 
+       */
+      int getNameDetectedLanguagesCount();
+      /**
+       *
+       *
+       * 
+       * A list of detected languages for name together with confidence.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage name_detected_languages = 3;
+       * 
+       */
+      java.util.List<
+              ? extends com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>
+          getNameDetectedLanguagesOrBuilderList();
+      /**
+       *
+       *
+       * 
+       * A list of detected languages for name together with confidence.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage name_detected_languages = 3;
+       * 
+       */
+      com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder
+          getNameDetectedLanguagesOrBuilder(int index);
+
+      /**
+       *
+       *
+       * 
+       * A list of detected languages for value together with confidence.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value_detected_languages = 4;
+       * 
+       */
+      java.util.List
+          getValueDetectedLanguagesList();
+      /**
+       *
+       *
+       * 
+       * A list of detected languages for value together with confidence.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value_detected_languages = 4;
+       * 
+       */
+      com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage getValueDetectedLanguages(
+          int index);
+      /**
+       *
+       *
+       * 
+       * A list of detected languages for value together with confidence.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value_detected_languages = 4;
+       * 
+       */
+      int getValueDetectedLanguagesCount();
+      /**
+       *
+       *
+       * 
+       * A list of detected languages for value together with confidence.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value_detected_languages = 4;
+       * 
+       */
+      java.util.List<
+              ? extends com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>
+          getValueDetectedLanguagesOrBuilderList();
+      /**
+       *
+       *
+       * 
+       * A list of detected languages for value together with confidence.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value_detected_languages = 4;
+       * 
+       */
+      com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder
+          getValueDetectedLanguagesOrBuilder(int index);
+
+      /**
+       *
+       *
+       * 
+       * If the value is non-textual, this field represents the type. Current
+       * valid values are:
+       *
+       * - blank (this indicates the `field_value` is normal text)
+       * - `unfilled_checkbox`
+       * - `filled_checkbox`
+       * 

+       *
+       * string value_type = 5;
+       *
+       * @return The valueType.
+       */
+      java.lang.String getValueType();
+      /**
+       *
+       *
+       * 
+       * If the value is non-textual, this field represents the type. Current
+       * valid values are:
+       *
+       * - blank (this indicates the `field_value` is normal text)
+       * - `unfilled_checkbox`
+       * - `filled_checkbox`
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+       * 
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+       * If corrections were made to the text identified by the
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+      /**
+       *
+       *
+       * 
+       * Created for Labeling UI to export key text.
+       * If corrections were made to the text identified by the
+       * `field_name.text_anchor`, this field will contain the correction.
+       * 

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+       * @return The bytes for correctedKeyText.
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+       *
+       * 
+       * Created for Labeling UI to export value text.
+       * If corrections were made to the text identified by the
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+       *
+       * 
+       * Created for Labeling UI to export value text.
+       * If corrections were made to the text identified by the
+       * `field_value.text_anchor`, this field will contain the correction.
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+       *
+       * string corrected_value_text = 7;
+       *
+       * @return The bytes for correctedValueText.
+       */
+      com.google.protobuf.ByteString getCorrectedValueTextBytes();
+
+      /**
+       *
+       *
+       * 
+       * The history of this annotation.
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 8;
+       *
+       * @return Whether the provenance field is set.
+       */
+      boolean hasProvenance();
+      /**
+       *
+       *
+       * 
+       * The history of this annotation.
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 8;
+       *
+       * @return The provenance.
+       */
+      com.google.cloud.documentai.v1beta2.Document.Provenance getProvenance();
+      /**
+       *
+       *
+       * 
+       * The history of this annotation.
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 8;
+       */
+      com.google.cloud.documentai.v1beta2.Document.ProvenanceOrBuilder getProvenanceOrBuilder();
+    }
+    /**
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+     *
+     * 
+     * A form field detected on the page.
+     * 

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+     * Protobuf type {@code google.cloud.documentai.v1beta2.Document.Page.FormField}
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+      // Use FormField.newBuilder() to construct.
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+      @java.lang.Override
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+      public static final int FIELD_NAME_FIELD_NUMBER = 1;
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+      /**
+       *
+       *
+       * 
+       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for the
+       * [FormField][google.cloud.documentai.v1beta2.Document.Page.FormField]
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+       *
+       * @return Whether the fieldName field is set.
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+      public boolean hasFieldName() {
+        return fieldName_ != null;
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+      /**
+       *
+       *
+       * 
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+       * [FormField][google.cloud.documentai.v1beta2.Document.Page.FormField]
+       * name. e.g. `Address`, `Email`, `Grand total`, `Phone number`, etc.
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Page.Layout field_name = 1;
+       *
+       * @return The fieldName.
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+      @java.lang.Override
+      public com.google.cloud.documentai.v1beta2.Document.Page.Layout getFieldName() {
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+      /**
+       *
+       *
+       * 
+       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for the
+       * [FormField][google.cloud.documentai.v1beta2.Document.Page.FormField]
+       * name. e.g. `Address`, `Email`, `Grand total`, `Phone number`, etc.
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Page.Layout field_name = 1;
+       */
+      @java.lang.Override
+      public com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder
+          getFieldNameOrBuilder() {
+        return fieldName_ == null
+            ? com.google.cloud.documentai.v1beta2.Document.Page.Layout.getDefaultInstance()
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+      }
+
+      public static final int FIELD_VALUE_FIELD_NUMBER = 2;
+      private com.google.cloud.documentai.v1beta2.Document.Page.Layout fieldValue_;
+      /**
+       *
+       *
+       * 
+       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for the
+       * [FormField][google.cloud.documentai.v1beta2.Document.Page.FormField]
+       * value.
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Page.Layout field_value = 2;
+       *
+       * @return Whether the fieldValue field is set.
+       */
+      @java.lang.Override
+      public boolean hasFieldValue() {
+        return fieldValue_ != null;
+      }
+      /**
+       *
+       *
+       * 
+       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for the
+       * [FormField][google.cloud.documentai.v1beta2.Document.Page.FormField]
+       * value.
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Page.Layout field_value = 2;
+       *
+       * @return The fieldValue.
+       */
+      @java.lang.Override
+      public com.google.cloud.documentai.v1beta2.Document.Page.Layout getFieldValue() {
+        return fieldValue_ == null
+            ? com.google.cloud.documentai.v1beta2.Document.Page.Layout.getDefaultInstance()
+            : fieldValue_;
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+       *
+       *
+       * 
+       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for the
+       * [FormField][google.cloud.documentai.v1beta2.Document.Page.FormField]
+       * value.
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Page.Layout field_value = 2;
+       */
+      @java.lang.Override
+      public com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder
+          getFieldValueOrBuilder() {
+        return fieldValue_ == null
+            ? com.google.cloud.documentai.v1beta2.Document.Page.Layout.getDefaultInstance()
+            : fieldValue_;
+      }
+
+      public static final int NAME_DETECTED_LANGUAGES_FIELD_NUMBER = 3;
+
+      @SuppressWarnings("serial")
+      private java.util.List
+          nameDetectedLanguages_;
+      /**
+       *
+       *
+       * 
+       * A list of detected languages for name together with confidence.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage name_detected_languages = 3;
+       * 
+       */
+      @java.lang.Override
+      public java.util.List
+          getNameDetectedLanguagesList() {
+        return nameDetectedLanguages_;
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+      /**
+       *
+       *
+       * 
+       * A list of detected languages for name together with confidence.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage name_detected_languages = 3;
+       * 
+       */
+      @java.lang.Override
+      public java.util.List<
+              ? extends com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>
+          getNameDetectedLanguagesOrBuilderList() {
+        return nameDetectedLanguages_;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of detected languages for name together with confidence.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage name_detected_languages = 3;
+       * 
+       */
+      @java.lang.Override
+      public int getNameDetectedLanguagesCount() {
+        return nameDetectedLanguages_.size();
+      }
+      /**
+       *
+       *
+       * 
+       * A list of detected languages for name together with confidence.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage name_detected_languages = 3;
+       * 
+       */
+      @java.lang.Override
+      public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage
+          getNameDetectedLanguages(int index) {
+        return nameDetectedLanguages_.get(index);
+      }
+      /**
+       *
+       *
+       * 
+       * A list of detected languages for name together with confidence.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage name_detected_languages = 3;
+       * 
+       */
+      @java.lang.Override
+      public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder
+          getNameDetectedLanguagesOrBuilder(int index) {
+        return nameDetectedLanguages_.get(index);
+      }
+
+      public static final int VALUE_DETECTED_LANGUAGES_FIELD_NUMBER = 4;
+
+      @SuppressWarnings("serial")
+      private java.util.List
+          valueDetectedLanguages_;
+      /**
+       *
+       *
+       * 
+       * A list of detected languages for value together with confidence.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value_detected_languages = 4;
+       * 
+       */
+      @java.lang.Override
+      public java.util.List
+          getValueDetectedLanguagesList() {
+        return valueDetectedLanguages_;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of detected languages for value together with confidence.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value_detected_languages = 4;
+       * 
+       */
+      @java.lang.Override
+      public java.util.List<
+              ? extends com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>
+          getValueDetectedLanguagesOrBuilderList() {
+        return valueDetectedLanguages_;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of detected languages for value together with confidence.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value_detected_languages = 4;
+       * 
+       */
+      @java.lang.Override
+      public int getValueDetectedLanguagesCount() {
+        return valueDetectedLanguages_.size();
+      }
+      /**
+       *
+       *
+       * 
+       * A list of detected languages for value together with confidence.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value_detected_languages = 4;
+       * 
+       */
+      @java.lang.Override
+      public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage
+          getValueDetectedLanguages(int index) {
+        return valueDetectedLanguages_.get(index);
+      }
+      /**
+       *
+       *
+       * 
+       * A list of detected languages for value together with confidence.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value_detected_languages = 4;
+       * 
+       */
+      @java.lang.Override
+      public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder
+          getValueDetectedLanguagesOrBuilder(int index) {
+        return valueDetectedLanguages_.get(index);
+      }
+
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+      @SuppressWarnings("serial")
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+       *
+       *
+       * 
+       * If the value is non-textual, this field represents the type. Current
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+       * - `unfilled_checkbox`
+       * - `filled_checkbox`
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+      public java.lang.String getValueType() {
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+       *
+       *
+       * 
+       * If the value is non-textual, this field represents the type. Current
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+       * - blank (this indicates the `field_value` is normal text)
+       * - `unfilled_checkbox`
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+       *
+       * 
+       * Created for Labeling UI to export key text.
+       * If corrections were made to the text identified by the
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+       * 

+       *
+       * string corrected_key_text = 6;
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+       *
+       * 
+       * Created for Labeling UI to export key text.
+       * If corrections were made to the text identified by the
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+      @SuppressWarnings("serial")
+      private volatile java.lang.Object correctedValueText_ = "";
+      /**
+       *
+       *
+       * 
+       * Created for Labeling UI to export value text.
+       * If corrections were made to the text identified by the
+       * `field_value.text_anchor`, this field will contain the correction.
+       * 

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+      public java.lang.String getCorrectedValueText() {
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+       * 
+       * Created for Labeling UI to export value text.
+       * If corrections were made to the text identified by the
+       * `field_value.text_anchor`, this field will contain the correction.
+       * 

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+       * string corrected_value_text = 7;
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+       * @return The bytes for correctedValueText.
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+      @java.lang.Override
+      public com.google.protobuf.ByteString getCorrectedValueTextBytes() {
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+        if (ref instanceof java.lang.String) {
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+      public static final int PROVENANCE_FIELD_NUMBER = 8;
+      private com.google.cloud.documentai.v1beta2.Document.Provenance provenance_;
+      /**
+       *
+       *
+       * 
+       * The history of this annotation.
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 8;
+       *
+       * @return Whether the provenance field is set.
+       */
+      @java.lang.Override
+      public boolean hasProvenance() {
+        return provenance_ != null;
+      }
+      /**
+       *
+       *
+       * 
+       * The history of this annotation.
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 8;
+       *
+       * @return The provenance.
+       */
+      @java.lang.Override
+      public com.google.cloud.documentai.v1beta2.Document.Provenance getProvenance() {
+        return provenance_ == null
+            ? com.google.cloud.documentai.v1beta2.Document.Provenance.getDefaultInstance()
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+      }
+      /**
+       *
+       *
+       * 
+       * The history of this annotation.
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 8;
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+      @java.lang.Override
+      public com.google.cloud.documentai.v1beta2.Document.ProvenanceOrBuilder
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+        if (provenance_ != null) {
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+        if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(correctedKeyText_)) {
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+      public Builder newBuilderForType() {
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+      public static Builder newBuilder(
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+        return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+      }
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+      @java.lang.Override
+      public Builder toBuilder() {
+        return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+      }
+
+      @java.lang.Override
+      protected Builder newBuilderForType(
+          com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+        Builder builder = new Builder(parent);
+        return builder;
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+       *
+       * 
+       * A form field detected on the page.
+       * 

+       *
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+        // Construct using com.google.cloud.documentai.v1beta2.Document.Page.FormField.newBuilder()
+        private Builder() {}
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+        private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
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+        @java.lang.Override
+        public Builder clear() {
+          super.clear();
+          bitField0_ = 0;
+          fieldName_ = null;
+          if (fieldNameBuilder_ != null) {
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+            fieldNameBuilder_ = null;
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+          correctedValueText_ = "";
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+        public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
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+          if (bitField0_ != 0) {
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+              bitField0_ = (bitField0_ & ~0x00000008);
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+            result.valueDetectedLanguages_ = valueDetectedLanguages_;
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+
+        private void buildPartial0(
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+          int from_bitField0_ = bitField0_;
+          if (((from_bitField0_ & 0x00000001) != 0)) {
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+          if (((from_bitField0_ & 0x00000080) != 0)) {
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+        @java.lang.Override
+        public Builder clone() {
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+        @java.lang.Override
+        public Builder setField(
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+        }
+
+        @java.lang.Override
+        public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+          return super.clearField(field);
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+        @java.lang.Override
+        public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
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+        @java.lang.Override
+        public Builder setRepeatedField(
+            com.google.protobuf.Descriptors.FieldDescriptor field,
+            int index,
+            java.lang.Object value) {
+          return super.setRepeatedField(field, index, value);
+        }
+
+        @java.lang.Override
+        public Builder addRepeatedField(
+            com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+          return super.addRepeatedField(field, value);
+        }
+
+        @java.lang.Override
+        public Builder mergeFrom(com.google.protobuf.Message other) {
+          if (other instanceof com.google.cloud.documentai.v1beta2.Document.Page.FormField) {
+            return mergeFrom((com.google.cloud.documentai.v1beta2.Document.Page.FormField) other);
+          } else {
+            super.mergeFrom(other);
+            return this;
+          }
+        }
+
+        public Builder mergeFrom(
+            com.google.cloud.documentai.v1beta2.Document.Page.FormField other) {
+          if (other
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+          if (other.hasFieldValue()) {
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+                bitField0_ = (bitField0_ & ~0x00000004);
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+                nameDetectedLanguages_.addAll(other.nameDetectedLanguages_);
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+              onChanged();
+            }
+          } else {
+            if (!other.nameDetectedLanguages_.isEmpty()) {
+              if (nameDetectedLanguagesBuilder_.isEmpty()) {
+                nameDetectedLanguagesBuilder_.dispose();
+                nameDetectedLanguagesBuilder_ = null;
+                nameDetectedLanguages_ = other.nameDetectedLanguages_;
+                bitField0_ = (bitField0_ & ~0x00000004);
+                nameDetectedLanguagesBuilder_ =
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+                nameDetectedLanguagesBuilder_.addAllMessages(other.nameDetectedLanguages_);
+              }
+            }
+          }
+          if (valueDetectedLanguagesBuilder_ == null) {
+            if (!other.valueDetectedLanguages_.isEmpty()) {
+              if (valueDetectedLanguages_.isEmpty()) {
+                valueDetectedLanguages_ = other.valueDetectedLanguages_;
+                bitField0_ = (bitField0_ & ~0x00000008);
+              } else {
+                ensureValueDetectedLanguagesIsMutable();
+                valueDetectedLanguages_.addAll(other.valueDetectedLanguages_);
+              }
+              onChanged();
+            }
+          } else {
+            if (!other.valueDetectedLanguages_.isEmpty()) {
+              if (valueDetectedLanguagesBuilder_.isEmpty()) {
+                valueDetectedLanguagesBuilder_.dispose();
+                valueDetectedLanguagesBuilder_ = null;
+                valueDetectedLanguages_ = other.valueDetectedLanguages_;
+                bitField0_ = (bitField0_ & ~0x00000008);
+                valueDetectedLanguagesBuilder_ =
+                    com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders
+                        ? getValueDetectedLanguagesFieldBuilder()
+                        : null;
+              } else {
+                valueDetectedLanguagesBuilder_.addAllMessages(other.valueDetectedLanguages_);
+              }
+            }
+          }
+          if (!other.getValueType().isEmpty()) {
+            valueType_ = other.valueType_;
+            bitField0_ |= 0x00000010;
+            onChanged();
+          }
+          if (!other.getCorrectedKeyText().isEmpty()) {
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+            bitField0_ |= 0x00000020;
+            onChanged();
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+          if (!other.getCorrectedValueText().isEmpty()) {
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+            bitField0_ |= 0x00000040;
+            onChanged();
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+          if (other.hasProvenance()) {
+            mergeProvenance(other.getProvenance());
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+          this.mergeUnknownFields(other.getUnknownFields());
+          onChanged();
+          return this;
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+
+        @java.lang.Override
+        public final boolean isInitialized() {
+          return true;
+        }
+
+        @java.lang.Override
+        public Builder mergeFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws java.io.IOException {
+          if (extensionRegistry == null) {
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+              switch (tag) {
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+                  break;
+                case 10:
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+                    bitField0_ |= 0x00000001;
+                    break;
+                  } // case 10
+                case 18:
+                  {
+                    input.readMessage(getFieldValueFieldBuilder().getBuilder(), extensionRegistry);
+                    bitField0_ |= 0x00000002;
+                    break;
+                  } // case 18
+                case 26:
+                  {
+                    com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage m =
+                        input.readMessage(
+                            com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage
+                                .parser(),
+                            extensionRegistry);
+                    if (nameDetectedLanguagesBuilder_ == null) {
+                      ensureNameDetectedLanguagesIsMutable();
+                      nameDetectedLanguages_.add(m);
+                    } else {
+                      nameDetectedLanguagesBuilder_.addMessage(m);
+                    }
+                    break;
+                  } // case 26
+                case 34:
+                  {
+                    com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage m =
+                        input.readMessage(
+                            com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage
+                                .parser(),
+                            extensionRegistry);
+                    if (valueDetectedLanguagesBuilder_ == null) {
+                      ensureValueDetectedLanguagesIsMutable();
+                      valueDetectedLanguages_.add(m);
+                    } else {
+                      valueDetectedLanguagesBuilder_.addMessage(m);
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+                    break;
+                  } // case 34
+                case 42:
+                  {
+                    valueType_ = input.readStringRequireUtf8();
+                    bitField0_ |= 0x00000010;
+                    break;
+                  } // case 42
+                case 50:
+                  {
+                    correctedKeyText_ = input.readStringRequireUtf8();
+                    bitField0_ |= 0x00000020;
+                    break;
+                  } // case 50
+                case 58:
+                  {
+                    correctedValueText_ = input.readStringRequireUtf8();
+                    bitField0_ |= 0x00000040;
+                    break;
+                  } // case 58
+                case 66:
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+                    input.readMessage(getProvenanceFieldBuilder().getBuilder(), extensionRegistry);
+                    bitField0_ |= 0x00000080;
+                    break;
+                  } // case 66
+                default:
+                  {
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+                    break;
+                  } // default:
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+            } // while (!done)
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
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+          } finally {
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+          return this;
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+        private int bitField0_;
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+        private com.google.cloud.documentai.v1beta2.Document.Page.Layout fieldName_;
+        private com.google.protobuf.SingleFieldBuilderV3<
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+         * .google.cloud.documentai.v1beta2.Document.Page.Layout field_name = 1;
+         *
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+        /**
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+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for the
+         * [FormField][google.cloud.documentai.v1beta2.Document.Page.FormField]
+         * name. e.g. `Address`, `Email`, `Grand total`, `Phone number`, etc.
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+         *
+         * .google.cloud.documentai.v1beta2.Document.Page.Layout field_name = 1;
+         *
+         * @return The fieldName.
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+        public com.google.cloud.documentai.v1beta2.Document.Page.Layout getFieldName() {
+          if (fieldNameBuilder_ == null) {
+            return fieldName_ == null
+                ? com.google.cloud.documentai.v1beta2.Document.Page.Layout.getDefaultInstance()
+                : fieldName_;
+          } else {
+            return fieldNameBuilder_.getMessage();
+          }
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+        /**
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+         *
+         * 
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for the
+         * [FormField][google.cloud.documentai.v1beta2.Document.Page.FormField]
+         * name. e.g. `Address`, `Email`, `Grand total`, `Phone number`, etc.
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Document.Page.Layout field_name = 1;
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+        public Builder setFieldName(
+            com.google.cloud.documentai.v1beta2.Document.Page.Layout value) {
+          if (fieldNameBuilder_ == null) {
+            if (value == null) {
+              throw new NullPointerException();
+            }
+            fieldName_ = value;
+          } else {
+            fieldNameBuilder_.setMessage(value);
+          }
+          bitField0_ |= 0x00000001;
+          onChanged();
+          return this;
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+        /**
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+         *
+         * 
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for the
+         * [FormField][google.cloud.documentai.v1beta2.Document.Page.FormField]
+         * name. e.g. `Address`, `Email`, `Grand total`, `Phone number`, etc.
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Document.Page.Layout field_name = 1;
+         */
+        public Builder setFieldName(
+            com.google.cloud.documentai.v1beta2.Document.Page.Layout.Builder builderForValue) {
+          if (fieldNameBuilder_ == null) {
+            fieldName_ = builderForValue.build();
+          } else {
+            fieldNameBuilder_.setMessage(builderForValue.build());
+          }
+          bitField0_ |= 0x00000001;
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for the
+         * [FormField][google.cloud.documentai.v1beta2.Document.Page.FormField]
+         * name. e.g. `Address`, `Email`, `Grand total`, `Phone number`, etc.
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Document.Page.Layout field_name = 1;
+         */
+        public Builder mergeFieldName(
+            com.google.cloud.documentai.v1beta2.Document.Page.Layout value) {
+          if (fieldNameBuilder_ == null) {
+            if (((bitField0_ & 0x00000001) != 0)
+                && fieldName_ != null
+                && fieldName_
+                    != com.google.cloud.documentai.v1beta2.Document.Page.Layout
+                        .getDefaultInstance()) {
+              getFieldNameBuilder().mergeFrom(value);
+            } else {
+              fieldName_ = value;
+            }
+          } else {
+            fieldNameBuilder_.mergeFrom(value);
+          }
+          bitField0_ |= 0x00000001;
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for the
+         * [FormField][google.cloud.documentai.v1beta2.Document.Page.FormField]
+         * name. e.g. `Address`, `Email`, `Grand total`, `Phone number`, etc.
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Document.Page.Layout field_name = 1;
+         */
+        public Builder clearFieldName() {
+          bitField0_ = (bitField0_ & ~0x00000001);
+          fieldName_ = null;
+          if (fieldNameBuilder_ != null) {
+            fieldNameBuilder_.dispose();
+            fieldNameBuilder_ = null;
+          }
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for the
+         * [FormField][google.cloud.documentai.v1beta2.Document.Page.FormField]
+         * name. e.g. `Address`, `Email`, `Grand total`, `Phone number`, etc.
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Document.Page.Layout field_name = 1;
+         */
+        public com.google.cloud.documentai.v1beta2.Document.Page.Layout.Builder
+            getFieldNameBuilder() {
+          bitField0_ |= 0x00000001;
+          onChanged();
+          return getFieldNameFieldBuilder().getBuilder();
+        }
+        /**
+         *
+         *
+         * 
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for the
+         * [FormField][google.cloud.documentai.v1beta2.Document.Page.FormField]
+         * name. e.g. `Address`, `Email`, `Grand total`, `Phone number`, etc.
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Document.Page.Layout field_name = 1;
+         */
+        public com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder
+            getFieldNameOrBuilder() {
+          if (fieldNameBuilder_ != null) {
+            return fieldNameBuilder_.getMessageOrBuilder();
+          } else {
+            return fieldName_ == null
+                ? com.google.cloud.documentai.v1beta2.Document.Page.Layout.getDefaultInstance()
+                : fieldName_;
+          }
+        }
+        /**
+         *
+         *
+         * 
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for the
+         * [FormField][google.cloud.documentai.v1beta2.Document.Page.FormField]
+         * name. e.g. `Address`, `Email`, `Grand total`, `Phone number`, etc.
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Document.Page.Layout field_name = 1;
+         */
+        private com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.documentai.v1beta2.Document.Page.Layout,
+                com.google.cloud.documentai.v1beta2.Document.Page.Layout.Builder,
+                com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder>
+            getFieldNameFieldBuilder() {
+          if (fieldNameBuilder_ == null) {
+            fieldNameBuilder_ =
+                new com.google.protobuf.SingleFieldBuilderV3<
+                    com.google.cloud.documentai.v1beta2.Document.Page.Layout,
+                    com.google.cloud.documentai.v1beta2.Document.Page.Layout.Builder,
+                    com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder>(
+                    getFieldName(), getParentForChildren(), isClean());
+            fieldName_ = null;
+          }
+          return fieldNameBuilder_;
+        }
+
+        private com.google.cloud.documentai.v1beta2.Document.Page.Layout fieldValue_;
+        private com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.documentai.v1beta2.Document.Page.Layout,
+                com.google.cloud.documentai.v1beta2.Document.Page.Layout.Builder,
+                com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder>
+            fieldValueBuilder_;
+        /**
+         *
+         *
+         * 
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for the
+         * [FormField][google.cloud.documentai.v1beta2.Document.Page.FormField]
+         * value.
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Document.Page.Layout field_value = 2;
+         *
+         * @return Whether the fieldValue field is set.
+         */
+        public boolean hasFieldValue() {
+          return ((bitField0_ & 0x00000002) != 0);
+        }
+        /**
+         *
+         *
+         * 
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for the
+         * [FormField][google.cloud.documentai.v1beta2.Document.Page.FormField]
+         * value.
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Document.Page.Layout field_value = 2;
+         *
+         * @return The fieldValue.
+         */
+        public com.google.cloud.documentai.v1beta2.Document.Page.Layout getFieldValue() {
+          if (fieldValueBuilder_ == null) {
+            return fieldValue_ == null
+                ? com.google.cloud.documentai.v1beta2.Document.Page.Layout.getDefaultInstance()
+                : fieldValue_;
+          } else {
+            return fieldValueBuilder_.getMessage();
+          }
+        }
+        /**
+         *
+         *
+         * 
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for the
+         * [FormField][google.cloud.documentai.v1beta2.Document.Page.FormField]
+         * value.
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Document.Page.Layout field_value = 2;
+         */
+        public Builder setFieldValue(
+            com.google.cloud.documentai.v1beta2.Document.Page.Layout value) {
+          if (fieldValueBuilder_ == null) {
+            if (value == null) {
+              throw new NullPointerException();
+            }
+            fieldValue_ = value;
+          } else {
+            fieldValueBuilder_.setMessage(value);
+          }
+          bitField0_ |= 0x00000002;
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for the
+         * [FormField][google.cloud.documentai.v1beta2.Document.Page.FormField]
+         * value.
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Document.Page.Layout field_value = 2;
+         */
+        public Builder setFieldValue(
+            com.google.cloud.documentai.v1beta2.Document.Page.Layout.Builder builderForValue) {
+          if (fieldValueBuilder_ == null) {
+            fieldValue_ = builderForValue.build();
+          } else {
+            fieldValueBuilder_.setMessage(builderForValue.build());
+          }
+          bitField0_ |= 0x00000002;
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for the
+         * [FormField][google.cloud.documentai.v1beta2.Document.Page.FormField]
+         * value.
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Document.Page.Layout field_value = 2;
+         */
+        public Builder mergeFieldValue(
+            com.google.cloud.documentai.v1beta2.Document.Page.Layout value) {
+          if (fieldValueBuilder_ == null) {
+            if (((bitField0_ & 0x00000002) != 0)
+                && fieldValue_ != null
+                && fieldValue_
+                    != com.google.cloud.documentai.v1beta2.Document.Page.Layout
+                        .getDefaultInstance()) {
+              getFieldValueBuilder().mergeFrom(value);
+            } else {
+              fieldValue_ = value;
+            }
+          } else {
+            fieldValueBuilder_.mergeFrom(value);
+          }
+          bitField0_ |= 0x00000002;
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for the
+         * [FormField][google.cloud.documentai.v1beta2.Document.Page.FormField]
+         * value.
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Document.Page.Layout field_value = 2;
+         */
+        public Builder clearFieldValue() {
+          bitField0_ = (bitField0_ & ~0x00000002);
+          fieldValue_ = null;
+          if (fieldValueBuilder_ != null) {
+            fieldValueBuilder_.dispose();
+            fieldValueBuilder_ = null;
+          }
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for the
+         * [FormField][google.cloud.documentai.v1beta2.Document.Page.FormField]
+         * value.
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Document.Page.Layout field_value = 2;
+         */
+        public com.google.cloud.documentai.v1beta2.Document.Page.Layout.Builder
+            getFieldValueBuilder() {
+          bitField0_ |= 0x00000002;
+          onChanged();
+          return getFieldValueFieldBuilder().getBuilder();
+        }
+        /**
+         *
+         *
+         * 
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for the
+         * [FormField][google.cloud.documentai.v1beta2.Document.Page.FormField]
+         * value.
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Document.Page.Layout field_value = 2;
+         */
+        public com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder
+            getFieldValueOrBuilder() {
+          if (fieldValueBuilder_ != null) {
+            return fieldValueBuilder_.getMessageOrBuilder();
+          } else {
+            return fieldValue_ == null
+                ? com.google.cloud.documentai.v1beta2.Document.Page.Layout.getDefaultInstance()
+                : fieldValue_;
+          }
+        }
+        /**
+         *
+         *
+         * 
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for the
+         * [FormField][google.cloud.documentai.v1beta2.Document.Page.FormField]
+         * value.
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Document.Page.Layout field_value = 2;
+         */
+        private com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.documentai.v1beta2.Document.Page.Layout,
+                com.google.cloud.documentai.v1beta2.Document.Page.Layout.Builder,
+                com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder>
+            getFieldValueFieldBuilder() {
+          if (fieldValueBuilder_ == null) {
+            fieldValueBuilder_ =
+                new com.google.protobuf.SingleFieldBuilderV3<
+                    com.google.cloud.documentai.v1beta2.Document.Page.Layout,
+                    com.google.cloud.documentai.v1beta2.Document.Page.Layout.Builder,
+                    com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder>(
+                    getFieldValue(), getParentForChildren(), isClean());
+            fieldValue_ = null;
+          }
+          return fieldValueBuilder_;
+        }
+
+        private java.util.List
+            nameDetectedLanguages_ = java.util.Collections.emptyList();
+
+        private void ensureNameDetectedLanguagesIsMutable() {
+          if (!((bitField0_ & 0x00000004) != 0)) {
+            nameDetectedLanguages_ =
+                new java.util.ArrayList<
+                    com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage>(
+                    nameDetectedLanguages_);
+            bitField0_ |= 0x00000004;
+          }
+        }
+
+        private com.google.protobuf.RepeatedFieldBuilderV3<
+                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage,
+                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder,
+                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>
+            nameDetectedLanguagesBuilder_;
+
+        /**
+         *
+         *
+         * 
+         * A list of detected languages for name together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage name_detected_languages = 3;
+         * 
+         */
+        public java.util.List
+            getNameDetectedLanguagesList() {
+          if (nameDetectedLanguagesBuilder_ == null) {
+            return java.util.Collections.unmodifiableList(nameDetectedLanguages_);
+          } else {
+            return nameDetectedLanguagesBuilder_.getMessageList();
+          }
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages for name together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage name_detected_languages = 3;
+         * 
+         */
+        public int getNameDetectedLanguagesCount() {
+          if (nameDetectedLanguagesBuilder_ == null) {
+            return nameDetectedLanguages_.size();
+          } else {
+            return nameDetectedLanguagesBuilder_.getCount();
+          }
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages for name together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage name_detected_languages = 3;
+         * 
+         */
+        public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage
+            getNameDetectedLanguages(int index) {
+          if (nameDetectedLanguagesBuilder_ == null) {
+            return nameDetectedLanguages_.get(index);
+          } else {
+            return nameDetectedLanguagesBuilder_.getMessage(index);
+          }
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages for name together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage name_detected_languages = 3;
+         * 
+         */
+        public Builder setNameDetectedLanguages(
+            int index, com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value) {
+          if (nameDetectedLanguagesBuilder_ == null) {
+            if (value == null) {
+              throw new NullPointerException();
+            }
+            ensureNameDetectedLanguagesIsMutable();
+            nameDetectedLanguages_.set(index, value);
+            onChanged();
+          } else {
+            nameDetectedLanguagesBuilder_.setMessage(index, value);
+          }
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages for name together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage name_detected_languages = 3;
+         * 
+         */
+        public Builder setNameDetectedLanguages(
+            int index,
+            com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
+                builderForValue) {
+          if (nameDetectedLanguagesBuilder_ == null) {
+            ensureNameDetectedLanguagesIsMutable();
+            nameDetectedLanguages_.set(index, builderForValue.build());
+            onChanged();
+          } else {
+            nameDetectedLanguagesBuilder_.setMessage(index, builderForValue.build());
+          }
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages for name together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage name_detected_languages = 3;
+         * 
+         */
+        public Builder addNameDetectedLanguages(
+            com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value) {
+          if (nameDetectedLanguagesBuilder_ == null) {
+            if (value == null) {
+              throw new NullPointerException();
+            }
+            ensureNameDetectedLanguagesIsMutable();
+            nameDetectedLanguages_.add(value);
+            onChanged();
+          } else {
+            nameDetectedLanguagesBuilder_.addMessage(value);
+          }
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages for name together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage name_detected_languages = 3;
+         * 
+         */
+        public Builder addNameDetectedLanguages(
+            int index, com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value) {
+          if (nameDetectedLanguagesBuilder_ == null) {
+            if (value == null) {
+              throw new NullPointerException();
+            }
+            ensureNameDetectedLanguagesIsMutable();
+            nameDetectedLanguages_.add(index, value);
+            onChanged();
+          } else {
+            nameDetectedLanguagesBuilder_.addMessage(index, value);
+          }
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages for name together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage name_detected_languages = 3;
+         * 
+         */
+        public Builder addNameDetectedLanguages(
+            com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
+                builderForValue) {
+          if (nameDetectedLanguagesBuilder_ == null) {
+            ensureNameDetectedLanguagesIsMutable();
+            nameDetectedLanguages_.add(builderForValue.build());
+            onChanged();
+          } else {
+            nameDetectedLanguagesBuilder_.addMessage(builderForValue.build());
+          }
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages for name together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage name_detected_languages = 3;
+         * 
+         */
+        public Builder addNameDetectedLanguages(
+            int index,
+            com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
+                builderForValue) {
+          if (nameDetectedLanguagesBuilder_ == null) {
+            ensureNameDetectedLanguagesIsMutable();
+            nameDetectedLanguages_.add(index, builderForValue.build());
+            onChanged();
+          } else {
+            nameDetectedLanguagesBuilder_.addMessage(index, builderForValue.build());
+          }
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages for name together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage name_detected_languages = 3;
+         * 
+         */
+        public Builder addAllNameDetectedLanguages(
+            java.lang.Iterable<
+                    ? extends com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage>
+                values) {
+          if (nameDetectedLanguagesBuilder_ == null) {
+            ensureNameDetectedLanguagesIsMutable();
+            com.google.protobuf.AbstractMessageLite.Builder.addAll(values, nameDetectedLanguages_);
+            onChanged();
+          } else {
+            nameDetectedLanguagesBuilder_.addAllMessages(values);
+          }
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages for name together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage name_detected_languages = 3;
+         * 
+         */
+        public Builder clearNameDetectedLanguages() {
+          if (nameDetectedLanguagesBuilder_ == null) {
+            nameDetectedLanguages_ = java.util.Collections.emptyList();
+            bitField0_ = (bitField0_ & ~0x00000004);
+            onChanged();
+          } else {
+            nameDetectedLanguagesBuilder_.clear();
+          }
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages for name together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage name_detected_languages = 3;
+         * 
+         */
+        public Builder removeNameDetectedLanguages(int index) {
+          if (nameDetectedLanguagesBuilder_ == null) {
+            ensureNameDetectedLanguagesIsMutable();
+            nameDetectedLanguages_.remove(index);
+            onChanged();
+          } else {
+            nameDetectedLanguagesBuilder_.remove(index);
+          }
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages for name together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage name_detected_languages = 3;
+         * 
+         */
+        public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
+            getNameDetectedLanguagesBuilder(int index) {
+          return getNameDetectedLanguagesFieldBuilder().getBuilder(index);
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages for name together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage name_detected_languages = 3;
+         * 
+         */
+        public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder
+            getNameDetectedLanguagesOrBuilder(int index) {
+          if (nameDetectedLanguagesBuilder_ == null) {
+            return nameDetectedLanguages_.get(index);
+          } else {
+            return nameDetectedLanguagesBuilder_.getMessageOrBuilder(index);
+          }
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages for name together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage name_detected_languages = 3;
+         * 
+         */
+        public java.util.List<
+                ? extends
+                    com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>
+            getNameDetectedLanguagesOrBuilderList() {
+          if (nameDetectedLanguagesBuilder_ != null) {
+            return nameDetectedLanguagesBuilder_.getMessageOrBuilderList();
+          } else {
+            return java.util.Collections.unmodifiableList(nameDetectedLanguages_);
+          }
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages for name together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage name_detected_languages = 3;
+         * 
+         */
+        public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
+            addNameDetectedLanguagesBuilder() {
+          return getNameDetectedLanguagesFieldBuilder()
+              .addBuilder(
+                  com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage
+                      .getDefaultInstance());
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages for name together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage name_detected_languages = 3;
+         * 
+         */
+        public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
+            addNameDetectedLanguagesBuilder(int index) {
+          return getNameDetectedLanguagesFieldBuilder()
+              .addBuilder(
+                  index,
+                  com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage
+                      .getDefaultInstance());
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages for name together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage name_detected_languages = 3;
+         * 
+         */
+        public java.util.List<
+                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder>
+            getNameDetectedLanguagesBuilderList() {
+          return getNameDetectedLanguagesFieldBuilder().getBuilderList();
+        }
+
+        private com.google.protobuf.RepeatedFieldBuilderV3<
+                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage,
+                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder,
+                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>
+            getNameDetectedLanguagesFieldBuilder() {
+          if (nameDetectedLanguagesBuilder_ == null) {
+            nameDetectedLanguagesBuilder_ =
+                new com.google.protobuf.RepeatedFieldBuilderV3<
+                    com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage,
+                    com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder,
+                    com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>(
+                    nameDetectedLanguages_,
+                    ((bitField0_ & 0x00000004) != 0),
+                    getParentForChildren(),
+                    isClean());
+            nameDetectedLanguages_ = null;
+          }
+          return nameDetectedLanguagesBuilder_;
+        }
+
+        private java.util.List
+            valueDetectedLanguages_ = java.util.Collections.emptyList();
+
+        private void ensureValueDetectedLanguagesIsMutable() {
+          if (!((bitField0_ & 0x00000008) != 0)) {
+            valueDetectedLanguages_ =
+                new java.util.ArrayList<
+                    com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage>(
+                    valueDetectedLanguages_);
+            bitField0_ |= 0x00000008;
+          }
+        }
+
+        private com.google.protobuf.RepeatedFieldBuilderV3<
+                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage,
+                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder,
+                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>
+            valueDetectedLanguagesBuilder_;
+
+        /**
+         *
+         *
+         * 
+         * A list of detected languages for value together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value_detected_languages = 4;
+         * 
+         */
+        public java.util.List
+            getValueDetectedLanguagesList() {
+          if (valueDetectedLanguagesBuilder_ == null) {
+            return java.util.Collections.unmodifiableList(valueDetectedLanguages_);
+          } else {
+            return valueDetectedLanguagesBuilder_.getMessageList();
+          }
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages for value together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value_detected_languages = 4;
+         * 
+         */
+        public int getValueDetectedLanguagesCount() {
+          if (valueDetectedLanguagesBuilder_ == null) {
+            return valueDetectedLanguages_.size();
+          } else {
+            return valueDetectedLanguagesBuilder_.getCount();
+          }
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages for value together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value_detected_languages = 4;
+         * 
+         */
+        public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage
+            getValueDetectedLanguages(int index) {
+          if (valueDetectedLanguagesBuilder_ == null) {
+            return valueDetectedLanguages_.get(index);
+          } else {
+            return valueDetectedLanguagesBuilder_.getMessage(index);
+          }
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages for value together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value_detected_languages = 4;
+         * 
+         */
+        public Builder setValueDetectedLanguages(
+            int index, com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value) {
+          if (valueDetectedLanguagesBuilder_ == null) {
+            if (value == null) {
+              throw new NullPointerException();
+            }
+            ensureValueDetectedLanguagesIsMutable();
+            valueDetectedLanguages_.set(index, value);
+            onChanged();
+          } else {
+            valueDetectedLanguagesBuilder_.setMessage(index, value);
+          }
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages for value together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value_detected_languages = 4;
+         * 
+         */
+        public Builder setValueDetectedLanguages(
+            int index,
+            com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
+                builderForValue) {
+          if (valueDetectedLanguagesBuilder_ == null) {
+            ensureValueDetectedLanguagesIsMutable();
+            valueDetectedLanguages_.set(index, builderForValue.build());
+            onChanged();
+          } else {
+            valueDetectedLanguagesBuilder_.setMessage(index, builderForValue.build());
+          }
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages for value together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value_detected_languages = 4;
+         * 
+         */
+        public Builder addValueDetectedLanguages(
+            com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value) {
+          if (valueDetectedLanguagesBuilder_ == null) {
+            if (value == null) {
+              throw new NullPointerException();
+            }
+            ensureValueDetectedLanguagesIsMutable();
+            valueDetectedLanguages_.add(value);
+            onChanged();
+          } else {
+            valueDetectedLanguagesBuilder_.addMessage(value);
+          }
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages for value together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value_detected_languages = 4;
+         * 
+         */
+        public Builder addValueDetectedLanguages(
+            int index, com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value) {
+          if (valueDetectedLanguagesBuilder_ == null) {
+            if (value == null) {
+              throw new NullPointerException();
+            }
+            ensureValueDetectedLanguagesIsMutable();
+            valueDetectedLanguages_.add(index, value);
+            onChanged();
+          } else {
+            valueDetectedLanguagesBuilder_.addMessage(index, value);
+          }
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages for value together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value_detected_languages = 4;
+         * 
+         */
+        public Builder addValueDetectedLanguages(
+            com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
+                builderForValue) {
+          if (valueDetectedLanguagesBuilder_ == null) {
+            ensureValueDetectedLanguagesIsMutable();
+            valueDetectedLanguages_.add(builderForValue.build());
+            onChanged();
+          } else {
+            valueDetectedLanguagesBuilder_.addMessage(builderForValue.build());
+          }
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages for value together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value_detected_languages = 4;
+         * 
+         */
+        public Builder addValueDetectedLanguages(
+            int index,
+            com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
+                builderForValue) {
+          if (valueDetectedLanguagesBuilder_ == null) {
+            ensureValueDetectedLanguagesIsMutable();
+            valueDetectedLanguages_.add(index, builderForValue.build());
+            onChanged();
+          } else {
+            valueDetectedLanguagesBuilder_.addMessage(index, builderForValue.build());
+          }
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages for value together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value_detected_languages = 4;
+         * 
+         */
+        public Builder addAllValueDetectedLanguages(
+            java.lang.Iterable<
+                    ? extends com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage>
+                values) {
+          if (valueDetectedLanguagesBuilder_ == null) {
+            ensureValueDetectedLanguagesIsMutable();
+            com.google.protobuf.AbstractMessageLite.Builder.addAll(values, valueDetectedLanguages_);
+            onChanged();
+          } else {
+            valueDetectedLanguagesBuilder_.addAllMessages(values);
+          }
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages for value together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value_detected_languages = 4;
+         * 
+         */
+        public Builder clearValueDetectedLanguages() {
+          if (valueDetectedLanguagesBuilder_ == null) {
+            valueDetectedLanguages_ = java.util.Collections.emptyList();
+            bitField0_ = (bitField0_ & ~0x00000008);
+            onChanged();
+          } else {
+            valueDetectedLanguagesBuilder_.clear();
+          }
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages for value together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value_detected_languages = 4;
+         * 
+         */
+        public Builder removeValueDetectedLanguages(int index) {
+          if (valueDetectedLanguagesBuilder_ == null) {
+            ensureValueDetectedLanguagesIsMutable();
+            valueDetectedLanguages_.remove(index);
+            onChanged();
+          } else {
+            valueDetectedLanguagesBuilder_.remove(index);
+          }
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages for value together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value_detected_languages = 4;
+         * 
+         */
+        public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
+            getValueDetectedLanguagesBuilder(int index) {
+          return getValueDetectedLanguagesFieldBuilder().getBuilder(index);
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages for value together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value_detected_languages = 4;
+         * 
+         */
+        public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder
+            getValueDetectedLanguagesOrBuilder(int index) {
+          if (valueDetectedLanguagesBuilder_ == null) {
+            return valueDetectedLanguages_.get(index);
+          } else {
+            return valueDetectedLanguagesBuilder_.getMessageOrBuilder(index);
+          }
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages for value together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value_detected_languages = 4;
+         * 
+         */
+        public java.util.List<
+                ? extends
+                    com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>
+            getValueDetectedLanguagesOrBuilderList() {
+          if (valueDetectedLanguagesBuilder_ != null) {
+            return valueDetectedLanguagesBuilder_.getMessageOrBuilderList();
+          } else {
+            return java.util.Collections.unmodifiableList(valueDetectedLanguages_);
+          }
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages for value together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value_detected_languages = 4;
+         * 
+         */
+        public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
+            addValueDetectedLanguagesBuilder() {
+          return getValueDetectedLanguagesFieldBuilder()
+              .addBuilder(
+                  com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage
+                      .getDefaultInstance());
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages for value together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value_detected_languages = 4;
+         * 
+         */
+        public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
+            addValueDetectedLanguagesBuilder(int index) {
+          return getValueDetectedLanguagesFieldBuilder()
+              .addBuilder(
+                  index,
+                  com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage
+                      .getDefaultInstance());
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected languages for value together with confidence.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value_detected_languages = 4;
+         * 
+         */
+        public java.util.List<
+                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder>
+            getValueDetectedLanguagesBuilderList() {
+          return getValueDetectedLanguagesFieldBuilder().getBuilderList();
+        }
+
+        private com.google.protobuf.RepeatedFieldBuilderV3<
+                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage,
+                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder,
+                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>
+            getValueDetectedLanguagesFieldBuilder() {
+          if (valueDetectedLanguagesBuilder_ == null) {
+            valueDetectedLanguagesBuilder_ =
+                new com.google.protobuf.RepeatedFieldBuilderV3<
+                    com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage,
+                    com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder,
+                    com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>(
+                    valueDetectedLanguages_,
+                    ((bitField0_ & 0x00000008) != 0),
+                    getParentForChildren(),
+                    isClean());
+            valueDetectedLanguages_ = null;
+          }
+          return valueDetectedLanguagesBuilder_;
+        }
+
+        private java.lang.Object valueType_ = "";
+        /**
+         *
+         *
+         * 
+         * If the value is non-textual, this field represents the type. Current
+         * valid values are:
+         *
+         * - blank (this indicates the `field_value` is normal text)
+         * - `unfilled_checkbox`
+         * - `filled_checkbox`
+         * 

+         *
+         * string value_type = 5;
+         *
+         * @return The valueType.
+         */
+        public java.lang.String getValueType() {
+          java.lang.Object ref = valueType_;
+          if (!(ref instanceof java.lang.String)) {
+            com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+            java.lang.String s = bs.toStringUtf8();
+            valueType_ = s;
+            return s;
+          } else {
+            return (java.lang.String) ref;
+          }
+        }
+        /**
+         *
+         *
+         * 
+         * If the value is non-textual, this field represents the type. Current
+         * valid values are:
+         *
+         * - blank (this indicates the `field_value` is normal text)
+         * - `unfilled_checkbox`
+         * - `filled_checkbox`
+         * 

+         *
+         * string value_type = 5;
+         *
+         * @return The bytes for valueType.
+         */
+        public com.google.protobuf.ByteString getValueTypeBytes() {
+          java.lang.Object ref = valueType_;
+          if (ref instanceof String) {
+            com.google.protobuf.ByteString b =
+                com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+            valueType_ = b;
+            return b;
+          } else {
+            return (com.google.protobuf.ByteString) ref;
+          }
+        }
+        /**
+         *
+         *
+         * 
+         * If the value is non-textual, this field represents the type. Current
+         * valid values are:
+         *
+         * - blank (this indicates the `field_value` is normal text)
+         * - `unfilled_checkbox`
+         * - `filled_checkbox`
+         * 

+         *
+         * string value_type = 5;
+         *
+         * @param value The valueType to set.
+         * @return This builder for chaining.
+         */
+        public Builder setValueType(java.lang.String value) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          valueType_ = value;
+          bitField0_ |= 0x00000010;
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * If the value is non-textual, this field represents the type. Current
+         * valid values are:
+         *
+         * - blank (this indicates the `field_value` is normal text)
+         * - `unfilled_checkbox`
+         * - `filled_checkbox`
+         * 

+         *
+         * string value_type = 5;
+         *
+         * @return This builder for chaining.
+         */
+        public Builder clearValueType() {
+          valueType_ = getDefaultInstance().getValueType();
+          bitField0_ = (bitField0_ & ~0x00000010);
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * If the value is non-textual, this field represents the type. Current
+         * valid values are:
+         *
+         * - blank (this indicates the `field_value` is normal text)
+         * - `unfilled_checkbox`
+         * - `filled_checkbox`
+         * 

+         *
+         * string value_type = 5;
+         *
+         * @param value The bytes for valueType to set.
+         * @return This builder for chaining.
+         */
+        public Builder setValueTypeBytes(com.google.protobuf.ByteString value) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          checkByteStringIsUtf8(value);
+          valueType_ = value;
+          bitField0_ |= 0x00000010;
+          onChanged();
+          return this;
+        }
+
+        private java.lang.Object correctedKeyText_ = "";
+        /**
+         *
+         *
+         * 
+         * Created for Labeling UI to export key text.
+         * If corrections were made to the text identified by the
+         * `field_name.text_anchor`, this field will contain the correction.
+         * 

+         *
+         * string corrected_key_text = 6;
+         *
+         * @return The correctedKeyText.
+         */
+        public java.lang.String getCorrectedKeyText() {
+          java.lang.Object ref = correctedKeyText_;
+          if (!(ref instanceof java.lang.String)) {
+            com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+            java.lang.String s = bs.toStringUtf8();
+            correctedKeyText_ = s;
+            return s;
+          } else {
+            return (java.lang.String) ref;
+          }
+        }
+        /**
+         *
+         *
+         * 
+         * Created for Labeling UI to export key text.
+         * If corrections were made to the text identified by the
+         * `field_name.text_anchor`, this field will contain the correction.
+         * 

+         *
+         * string corrected_key_text = 6;
+         *
+         * @return The bytes for correctedKeyText.
+         */
+        public com.google.protobuf.ByteString getCorrectedKeyTextBytes() {
+          java.lang.Object ref = correctedKeyText_;
+          if (ref instanceof String) {
+            com.google.protobuf.ByteString b =
+                com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+            correctedKeyText_ = b;
+            return b;
+          } else {
+            return (com.google.protobuf.ByteString) ref;
+          }
+        }
+        /**
+         *
+         *
+         * 
+         * Created for Labeling UI to export key text.
+         * If corrections were made to the text identified by the
+         * `field_name.text_anchor`, this field will contain the correction.
+         * 

+         *
+         * string corrected_key_text = 6;
+         *
+         * @param value The correctedKeyText to set.
+         * @return This builder for chaining.
+         */
+        public Builder setCorrectedKeyText(java.lang.String value) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          correctedKeyText_ = value;
+          bitField0_ |= 0x00000020;
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * Created for Labeling UI to export key text.
+         * If corrections were made to the text identified by the
+         * `field_name.text_anchor`, this field will contain the correction.
+         * 

+         *
+         * string corrected_key_text = 6;
+         *
+         * @return This builder for chaining.
+         */
+        public Builder clearCorrectedKeyText() {
+          correctedKeyText_ = getDefaultInstance().getCorrectedKeyText();
+          bitField0_ = (bitField0_ & ~0x00000020);
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * Created for Labeling UI to export key text.
+         * If corrections were made to the text identified by the
+         * `field_name.text_anchor`, this field will contain the correction.
+         * 

+         *
+         * string corrected_key_text = 6;
+         *
+         * @param value The bytes for correctedKeyText to set.
+         * @return This builder for chaining.
+         */
+        public Builder setCorrectedKeyTextBytes(com.google.protobuf.ByteString value) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          checkByteStringIsUtf8(value);
+          correctedKeyText_ = value;
+          bitField0_ |= 0x00000020;
+          onChanged();
+          return this;
+        }
+
+        private java.lang.Object correctedValueText_ = "";
+        /**
+         *
+         *
+         * 
+         * Created for Labeling UI to export value text.
+         * If corrections were made to the text identified by the
+         * `field_value.text_anchor`, this field will contain the correction.
+         * 

+         *
+         * string corrected_value_text = 7;
+         *
+         * @return The correctedValueText.
+         */
+        public java.lang.String getCorrectedValueText() {
+          java.lang.Object ref = correctedValueText_;
+          if (!(ref instanceof java.lang.String)) {
+            com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+            java.lang.String s = bs.toStringUtf8();
+            correctedValueText_ = s;
+            return s;
+          } else {
+            return (java.lang.String) ref;
+          }
+        }
+        /**
+         *
+         *
+         * 
+         * Created for Labeling UI to export value text.
+         * If corrections were made to the text identified by the
+         * `field_value.text_anchor`, this field will contain the correction.
+         * 

+         *
+         * string corrected_value_text = 7;
+         *
+         * @return The bytes for correctedValueText.
+         */
+        public com.google.protobuf.ByteString getCorrectedValueTextBytes() {
+          java.lang.Object ref = correctedValueText_;
+          if (ref instanceof String) {
+            com.google.protobuf.ByteString b =
+                com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+            correctedValueText_ = b;
+            return b;
+          } else {
+            return (com.google.protobuf.ByteString) ref;
+          }
+        }
+        /**
+         *
+         *
+         * 
+         * Created for Labeling UI to export value text.
+         * If corrections were made to the text identified by the
+         * `field_value.text_anchor`, this field will contain the correction.
+         * 

+         *
+         * string corrected_value_text = 7;
+         *
+         * @param value The correctedValueText to set.
+         * @return This builder for chaining.
+         */
+        public Builder setCorrectedValueText(java.lang.String value) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          correctedValueText_ = value;
+          bitField0_ |= 0x00000040;
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * Created for Labeling UI to export value text.
+         * If corrections were made to the text identified by the
+         * `field_value.text_anchor`, this field will contain the correction.
+         * 

+         *
+         * string corrected_value_text = 7;
+         *
+         * @return This builder for chaining.
+         */
+        public Builder clearCorrectedValueText() {
+          correctedValueText_ = getDefaultInstance().getCorrectedValueText();
+          bitField0_ = (bitField0_ & ~0x00000040);
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * Created for Labeling UI to export value text.
+         * If corrections were made to the text identified by the
+         * `field_value.text_anchor`, this field will contain the correction.
+         * 

+         *
+         * string corrected_value_text = 7;
+         *
+         * @param value The bytes for correctedValueText to set.
+         * @return This builder for chaining.
+         */
+        public Builder setCorrectedValueTextBytes(com.google.protobuf.ByteString value) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          checkByteStringIsUtf8(value);
+          correctedValueText_ = value;
+          bitField0_ |= 0x00000040;
+          onChanged();
+          return this;
+        }
+
+        private com.google.cloud.documentai.v1beta2.Document.Provenance provenance_;
+        private com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.documentai.v1beta2.Document.Provenance,
+                com.google.cloud.documentai.v1beta2.Document.Provenance.Builder,
+                com.google.cloud.documentai.v1beta2.Document.ProvenanceOrBuilder>
+            provenanceBuilder_;
+        /**
+         *
+         *
+         * 
+         * The history of this annotation.
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 8;
+         *
+         * @return Whether the provenance field is set.
+         */
+        public boolean hasProvenance() {
+          return ((bitField0_ & 0x00000080) != 0);
+        }
+        /**
+         *
+         *
+         * 
+         * The history of this annotation.
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 8;
+         *
+         * @return The provenance.
+         */
+        public com.google.cloud.documentai.v1beta2.Document.Provenance getProvenance() {
+          if (provenanceBuilder_ == null) {
+            return provenance_ == null
+                ? com.google.cloud.documentai.v1beta2.Document.Provenance.getDefaultInstance()
+                : provenance_;
+          } else {
+            return provenanceBuilder_.getMessage();
+          }
+        }
+        /**
+         *
+         *
+         * 
+         * The history of this annotation.
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 8;
+         */
+        public Builder setProvenance(
+            com.google.cloud.documentai.v1beta2.Document.Provenance value) {
+          if (provenanceBuilder_ == null) {
+            if (value == null) {
+              throw new NullPointerException();
+            }
+            provenance_ = value;
+          } else {
+            provenanceBuilder_.setMessage(value);
+          }
+          bitField0_ |= 0x00000080;
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * The history of this annotation.
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 8;
+         */
+        public Builder setProvenance(
+            com.google.cloud.documentai.v1beta2.Document.Provenance.Builder builderForValue) {
+          if (provenanceBuilder_ == null) {
+            provenance_ = builderForValue.build();
+          } else {
+            provenanceBuilder_.setMessage(builderForValue.build());
+          }
+          bitField0_ |= 0x00000080;
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * The history of this annotation.
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 8;
+         */
+        public Builder mergeProvenance(
+            com.google.cloud.documentai.v1beta2.Document.Provenance value) {
+          if (provenanceBuilder_ == null) {
+            if (((bitField0_ & 0x00000080) != 0)
+                && provenance_ != null
+                && provenance_
+                    != com.google.cloud.documentai.v1beta2.Document.Provenance
+                        .getDefaultInstance()) {
+              getProvenanceBuilder().mergeFrom(value);
+            } else {
+              provenance_ = value;
+            }
+          } else {
+            provenanceBuilder_.mergeFrom(value);
+          }
+          bitField0_ |= 0x00000080;
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * The history of this annotation.
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 8;
+         */
+        public Builder clearProvenance() {
+          bitField0_ = (bitField0_ & ~0x00000080);
+          provenance_ = null;
+          if (provenanceBuilder_ != null) {
+            provenanceBuilder_.dispose();
+            provenanceBuilder_ = null;
+          }
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * The history of this annotation.
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 8;
+         */
+        public com.google.cloud.documentai.v1beta2.Document.Provenance.Builder
+            getProvenanceBuilder() {
+          bitField0_ |= 0x00000080;
+          onChanged();
+          return getProvenanceFieldBuilder().getBuilder();
+        }
+        /**
+         *
+         *
+         * 
+         * The history of this annotation.
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 8;
+         */
+        public com.google.cloud.documentai.v1beta2.Document.ProvenanceOrBuilder
+            getProvenanceOrBuilder() {
+          if (provenanceBuilder_ != null) {
+            return provenanceBuilder_.getMessageOrBuilder();
+          } else {
+            return provenance_ == null
+                ? com.google.cloud.documentai.v1beta2.Document.Provenance.getDefaultInstance()
+                : provenance_;
+          }
+        }
+        /**
+         *
+         *
+         * 
+         * The history of this annotation.
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 8;
+         */
+        private com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.documentai.v1beta2.Document.Provenance,
+                com.google.cloud.documentai.v1beta2.Document.Provenance.Builder,
+                com.google.cloud.documentai.v1beta2.Document.ProvenanceOrBuilder>
+            getProvenanceFieldBuilder() {
+          if (provenanceBuilder_ == null) {
+            provenanceBuilder_ =
+                new com.google.protobuf.SingleFieldBuilderV3<
+                    com.google.cloud.documentai.v1beta2.Document.Provenance,
+                    com.google.cloud.documentai.v1beta2.Document.Provenance.Builder,
+                    com.google.cloud.documentai.v1beta2.Document.ProvenanceOrBuilder>(
+                    getProvenance(), getParentForChildren(), isClean());
+            provenance_ = null;
+          }
+          return provenanceBuilder_;
+        }
+
+        @java.lang.Override
+        public final Builder setUnknownFields(
+            final com.google.protobuf.UnknownFieldSet unknownFields) {
+          return super.setUnknownFields(unknownFields);
+        }
+
+        @java.lang.Override
+        public final Builder mergeUnknownFields(
+            final com.google.protobuf.UnknownFieldSet unknownFields) {
+          return super.mergeUnknownFields(unknownFields);
+        }
+
+        // @@protoc_insertion_point(builder_scope:google.cloud.documentai.v1beta2.Document.Page.FormField)
+      }
+
+      // @@protoc_insertion_point(class_scope:google.cloud.documentai.v1beta2.Document.Page.FormField)
+      private static final com.google.cloud.documentai.v1beta2.Document.Page.FormField
+          DEFAULT_INSTANCE;
+
+      static {
+        DEFAULT_INSTANCE = new com.google.cloud.documentai.v1beta2.Document.Page.FormField();
+      }
+
+      public static com.google.cloud.documentai.v1beta2.Document.Page.FormField
+          getDefaultInstance() {
+        return DEFAULT_INSTANCE;
+      }
+
+      private static final com.google.protobuf.Parser PARSER =
+          new com.google.protobuf.AbstractParser() {
+            @java.lang.Override
+            public FormField parsePartialFrom(
+                com.google.protobuf.CodedInputStream input,
+                com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+                throws com.google.protobuf.InvalidProtocolBufferException {
+              Builder builder = newBuilder();
+              try {
+                builder.mergeFrom(input, extensionRegistry);
+              } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+                throw e.setUnfinishedMessage(builder.buildPartial());
+              } catch (com.google.protobuf.UninitializedMessageException e) {
+                throw e.asInvalidProtocolBufferException()
+                    .setUnfinishedMessage(builder.buildPartial());
+              } catch (java.io.IOException e) {
+                throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                    .setUnfinishedMessage(builder.buildPartial());
+              }
+              return builder.buildPartial();
+            }
+          };
+
+      public static com.google.protobuf.Parser parser() {
+        return PARSER;
+      }
+
+      @java.lang.Override
+      public com.google.protobuf.Parser getParserForType() {
+        return PARSER;
+      }
+
+      @java.lang.Override
+      public com.google.cloud.documentai.v1beta2.Document.Page.FormField
+          getDefaultInstanceForType() {
+        return DEFAULT_INSTANCE;
+      }
+    }
+
+    public interface DetectedBarcodeOrBuilder
+        extends
+        // @@protoc_insertion_point(interface_extends:google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode)
+        com.google.protobuf.MessageOrBuilder {
+
+      /**
+       *
+       *
+       * 
+       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+       * [DetectedBarcode][google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode].
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+       *
+       * @return Whether the layout field is set.
+       */
+      boolean hasLayout();
+      /**
+       *
+       *
+       * 
+       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+       * [DetectedBarcode][google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode].
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+       *
+       * @return The layout.
+       */
+      com.google.cloud.documentai.v1beta2.Document.Page.Layout getLayout();
+      /**
+       *
+       *
+       * 
+       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+       * [DetectedBarcode][google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode].
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+       */
+      com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder getLayoutOrBuilder();
+
+      /**
+       *
+       *
+       * 
+       * Detailed barcode information of the
+       * [DetectedBarcode][google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode].
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Barcode barcode = 2;
+       *
+       * @return Whether the barcode field is set.
+       */
+      boolean hasBarcode();
+      /**
+       *
+       *
+       * 
+       * Detailed barcode information of the
+       * [DetectedBarcode][google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode].
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Barcode barcode = 2;
+       *
+       * @return The barcode.
+       */
+      com.google.cloud.documentai.v1beta2.Barcode getBarcode();
+      /**
+       *
+       *
+       * 
+       * Detailed barcode information of the
+       * [DetectedBarcode][google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode].
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Barcode barcode = 2;
+       */
+      com.google.cloud.documentai.v1beta2.BarcodeOrBuilder getBarcodeOrBuilder();
+    }
+    /**
+     *
+     *
+     * 
+     * A detected barcode.
+     * 

+     *
+     * Protobuf type {@code google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode}
+     */
+    public static final class DetectedBarcode extends com.google.protobuf.GeneratedMessageV3
+        implements
+        // @@protoc_insertion_point(message_implements:google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode)
+        DetectedBarcodeOrBuilder {
+      private static final long serialVersionUID = 0L;
+      // Use DetectedBarcode.newBuilder() to construct.
+      private DetectedBarcode(com.google.protobuf.GeneratedMessageV3.Builder builder) {
+        super(builder);
+      }
+
+      private DetectedBarcode() {}
+
+      @java.lang.Override
+      @SuppressWarnings({"unused"})
+      protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+        return new DetectedBarcode();
+      }
+
+      public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+        return com.google.cloud.documentai.v1beta2.DocumentProto
+            .internal_static_google_cloud_documentai_v1beta2_Document_Page_DetectedBarcode_descriptor;
+      }
+
+      @java.lang.Override
+      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+          internalGetFieldAccessorTable() {
+        return com.google.cloud.documentai.v1beta2.DocumentProto
+            .internal_static_google_cloud_documentai_v1beta2_Document_Page_DetectedBarcode_fieldAccessorTable
+            .ensureFieldAccessorsInitialized(
+                com.google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode.class,
+                com.google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode.Builder.class);
+      }
+
+      public static final int LAYOUT_FIELD_NUMBER = 1;
+      private com.google.cloud.documentai.v1beta2.Document.Page.Layout layout_;
+      /**
+       *
+       *
+       * 
+       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+       * [DetectedBarcode][google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode].
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+       *
+       * @return Whether the layout field is set.
+       */
+      @java.lang.Override
+      public boolean hasLayout() {
+        return layout_ != null;
+      }
+      /**
+       *
+       *
+       * 
+       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+       * [DetectedBarcode][google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode].
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+       *
+       * @return The layout.
+       */
+      @java.lang.Override
+      public com.google.cloud.documentai.v1beta2.Document.Page.Layout getLayout() {
+        return layout_ == null
+            ? com.google.cloud.documentai.v1beta2.Document.Page.Layout.getDefaultInstance()
+            : layout_;
+      }
+      /**
+       *
+       *
+       * 
+       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+       * [DetectedBarcode][google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode].
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+       */
+      @java.lang.Override
+      public com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder
+          getLayoutOrBuilder() {
+        return layout_ == null
+            ? com.google.cloud.documentai.v1beta2.Document.Page.Layout.getDefaultInstance()
+            : layout_;
+      }
+
+      public static final int BARCODE_FIELD_NUMBER = 2;
+      private com.google.cloud.documentai.v1beta2.Barcode barcode_;
+      /**
+       *
+       *
+       * 
+       * Detailed barcode information of the
+       * [DetectedBarcode][google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode].
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Barcode barcode = 2;
+       *
+       * @return Whether the barcode field is set.
+       */
+      @java.lang.Override
+      public boolean hasBarcode() {
+        return barcode_ != null;
+      }
+      /**
+       *
+       *
+       * 
+       * Detailed barcode information of the
+       * [DetectedBarcode][google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode].
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Barcode barcode = 2;
+       *
+       * @return The barcode.
+       */
+      @java.lang.Override
+      public com.google.cloud.documentai.v1beta2.Barcode getBarcode() {
+        return barcode_ == null
+            ? com.google.cloud.documentai.v1beta2.Barcode.getDefaultInstance()
+            : barcode_;
+      }
+      /**
+       *
+       *
+       * 
+       * Detailed barcode information of the
+       * [DetectedBarcode][google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode].
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Barcode barcode = 2;
+       */
+      @java.lang.Override
+      public com.google.cloud.documentai.v1beta2.BarcodeOrBuilder getBarcodeOrBuilder() {
+        return barcode_ == null
+            ? com.google.cloud.documentai.v1beta2.Barcode.getDefaultInstance()
+            : barcode_;
+      }
+
+      private byte memoizedIsInitialized = -1;
+
+      @java.lang.Override
+      public final boolean isInitialized() {
+        byte isInitialized = memoizedIsInitialized;
+        if (isInitialized == 1) return true;
+        if (isInitialized == 0) return false;
+
+        memoizedIsInitialized = 1;
+        return true;
+      }
+
+      @java.lang.Override
+      public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+        if (layout_ != null) {
+          output.writeMessage(1, getLayout());
+        }
+        if (barcode_ != null) {
+          output.writeMessage(2, getBarcode());
+        }
+        getUnknownFields().writeTo(output);
+      }
+
+      @java.lang.Override
+      public int getSerializedSize() {
+        int size = memoizedSize;
+        if (size != -1) return size;
+
+        size = 0;
+        if (layout_ != null) {
+          size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, getLayout());
+        }
+        if (barcode_ != null) {
+          size += com.google.protobuf.CodedOutputStream.computeMessageSize(2, getBarcode());
+        }
+        size += getUnknownFields().getSerializedSize();
+        memoizedSize = size;
+        return size;
+      }
+
+      @java.lang.Override
+      public boolean equals(final java.lang.Object obj) {
+        if (obj == this) {
+          return true;
+        }
+        if (!(obj instanceof com.google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode)) {
+          return super.equals(obj);
+        }
+        com.google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode other =
+            (com.google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode) obj;
+
+        if (hasLayout() != other.hasLayout()) return false;
+        if (hasLayout()) {
+          if (!getLayout().equals(other.getLayout())) return false;
+        }
+        if (hasBarcode() != other.hasBarcode()) return false;
+        if (hasBarcode()) {
+          if (!getBarcode().equals(other.getBarcode())) return false;
+        }
+        if (!getUnknownFields().equals(other.getUnknownFields())) return false;
+        return true;
+      }
+
+      @java.lang.Override
+      public int hashCode() {
+        if (memoizedHashCode != 0) {
+          return memoizedHashCode;
+        }
+        int hash = 41;
+        hash = (19 * hash) + getDescriptor().hashCode();
+        if (hasLayout()) {
+          hash = (37 * hash) + LAYOUT_FIELD_NUMBER;
+          hash = (53 * hash) + getLayout().hashCode();
+        }
+        if (hasBarcode()) {
+          hash = (37 * hash) + BARCODE_FIELD_NUMBER;
+          hash = (53 * hash) + getBarcode().hashCode();
+        }
+        hash = (29 * hash) + getUnknownFields().hashCode();
+        memoizedHashCode = hash;
+        return hash;
+      }
+
+      public static com.google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode parseFrom(
+          java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+        return PARSER.parseFrom(data);
+      }
+
+      public static com.google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode parseFrom(
+          java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws com.google.protobuf.InvalidProtocolBufferException {
+        return PARSER.parseFrom(data, extensionRegistry);
+      }
+
+      public static com.google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode parseFrom(
+          com.google.protobuf.ByteString data)
+          throws com.google.protobuf.InvalidProtocolBufferException {
+        return PARSER.parseFrom(data);
+      }
+
+      public static com.google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode parseFrom(
+          com.google.protobuf.ByteString data,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws com.google.protobuf.InvalidProtocolBufferException {
+        return PARSER.parseFrom(data, extensionRegistry);
+      }
+
+      public static com.google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode parseFrom(
+          byte[] data) throws com.google.protobuf.InvalidProtocolBufferException {
+        return PARSER.parseFrom(data);
+      }
+
+      public static com.google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode parseFrom(
+          byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws com.google.protobuf.InvalidProtocolBufferException {
+        return PARSER.parseFrom(data, extensionRegistry);
+      }
+
+      public static com.google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode parseFrom(
+          java.io.InputStream input) throws java.io.IOException {
+        return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+      }
+
+      public static com.google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode parseFrom(
+          java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+        return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+            PARSER, input, extensionRegistry);
+      }
+
+      public static com.google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode
+          parseDelimitedFrom(java.io.InputStream input) throws java.io.IOException {
+        return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+      }
+
+      public static com.google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode
+          parseDelimitedFrom(
+              java.io.InputStream input,
+              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+              throws java.io.IOException {
+        return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+            PARSER, input, extensionRegistry);
+      }
+
+      public static com.google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode parseFrom(
+          com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+        return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+      }
+
+      public static com.google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode parseFrom(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+        return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+            PARSER, input, extensionRegistry);
+      }
+
+      @java.lang.Override
+      public Builder newBuilderForType() {
+        return newBuilder();
+      }
+
+      public static Builder newBuilder() {
+        return DEFAULT_INSTANCE.toBuilder();
+      }
+
+      public static Builder newBuilder(
+          com.google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode prototype) {
+        return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+      }
+
+      @java.lang.Override
+      public Builder toBuilder() {
+        return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+      }
+
+      @java.lang.Override
+      protected Builder newBuilderForType(
+          com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+        Builder builder = new Builder(parent);
+        return builder;
+      }
+      /**
+       *
+       *
+       * 
+       * A detected barcode.
+       * 

+       *
+       * Protobuf type {@code google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode}
+       */
+      public static final class Builder
+          extends com.google.protobuf.GeneratedMessageV3.Builder
+          implements
+          // @@protoc_insertion_point(builder_implements:google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode)
+          com.google.cloud.documentai.v1beta2.Document.Page.DetectedBarcodeOrBuilder {
+        public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+          return com.google.cloud.documentai.v1beta2.DocumentProto
+              .internal_static_google_cloud_documentai_v1beta2_Document_Page_DetectedBarcode_descriptor;
+        }
+
+        @java.lang.Override
+        protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+            internalGetFieldAccessorTable() {
+          return com.google.cloud.documentai.v1beta2.DocumentProto
+              .internal_static_google_cloud_documentai_v1beta2_Document_Page_DetectedBarcode_fieldAccessorTable
+              .ensureFieldAccessorsInitialized(
+                  com.google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode.class,
+                  com.google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode.Builder.class);
+        }
+
+        // Construct using
+        // com.google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode.newBuilder()
+        private Builder() {}
+
+        private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+          super(parent);
+        }
+
+        @java.lang.Override
+        public Builder clear() {
+          super.clear();
+          bitField0_ = 0;
+          layout_ = null;
+          if (layoutBuilder_ != null) {
+            layoutBuilder_.dispose();
+            layoutBuilder_ = null;
+          }
+          barcode_ = null;
+          if (barcodeBuilder_ != null) {
+            barcodeBuilder_.dispose();
+            barcodeBuilder_ = null;
+          }
+          return this;
+        }
+
+        @java.lang.Override
+        public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+          return com.google.cloud.documentai.v1beta2.DocumentProto
+              .internal_static_google_cloud_documentai_v1beta2_Document_Page_DetectedBarcode_descriptor;
+        }
+
+        @java.lang.Override
+        public com.google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode
+            getDefaultInstanceForType() {
+          return com.google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode
+              .getDefaultInstance();
+        }
+
+        @java.lang.Override
+        public com.google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode build() {
+          com.google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode result = buildPartial();
+          if (!result.isInitialized()) {
+            throw newUninitializedMessageException(result);
+          }
+          return result;
+        }
+
+        @java.lang.Override
+        public com.google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode buildPartial() {
+          com.google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode result =
+              new com.google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode(this);
+          if (bitField0_ != 0) {
+            buildPartial0(result);
+          }
+          onBuilt();
+          return result;
+        }
+
+        private void buildPartial0(
+            com.google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode result) {
+          int from_bitField0_ = bitField0_;
+          if (((from_bitField0_ & 0x00000001) != 0)) {
+            result.layout_ = layoutBuilder_ == null ? layout_ : layoutBuilder_.build();
+          }
+          if (((from_bitField0_ & 0x00000002) != 0)) {
+            result.barcode_ = barcodeBuilder_ == null ? barcode_ : barcodeBuilder_.build();
+          }
+        }
+
+        @java.lang.Override
+        public Builder clone() {
+          return super.clone();
+        }
+
+        @java.lang.Override
+        public Builder setField(
+            com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+          return super.setField(field, value);
+        }
+
+        @java.lang.Override
+        public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+          return super.clearField(field);
+        }
+
+        @java.lang.Override
+        public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+          return super.clearOneof(oneof);
+        }
+
+        @java.lang.Override
+        public Builder setRepeatedField(
+            com.google.protobuf.Descriptors.FieldDescriptor field,
+            int index,
+            java.lang.Object value) {
+          return super.setRepeatedField(field, index, value);
+        }
+
+        @java.lang.Override
+        public Builder addRepeatedField(
+            com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+          return super.addRepeatedField(field, value);
+        }
+
+        @java.lang.Override
+        public Builder mergeFrom(com.google.protobuf.Message other) {
+          if (other instanceof com.google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode) {
+            return mergeFrom(
+                (com.google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode) other);
+          } else {
+            super.mergeFrom(other);
+            return this;
+          }
+        }
+
+        public Builder mergeFrom(
+            com.google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode other) {
+          if (other
+              == com.google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode
+                  .getDefaultInstance()) return this;
+          if (other.hasLayout()) {
+            mergeLayout(other.getLayout());
+          }
+          if (other.hasBarcode()) {
+            mergeBarcode(other.getBarcode());
+          }
+          this.mergeUnknownFields(other.getUnknownFields());
+          onChanged();
+          return this;
+        }
+
+        @java.lang.Override
+        public final boolean isInitialized() {
+          return true;
+        }
+
+        @java.lang.Override
+        public Builder mergeFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws java.io.IOException {
+          if (extensionRegistry == null) {
+            throw new java.lang.NullPointerException();
+          }
+          try {
+            boolean done = false;
+            while (!done) {
+              int tag = input.readTag();
+              switch (tag) {
+                case 0:
+                  done = true;
+                  break;
+                case 10:
+                  {
+                    input.readMessage(getLayoutFieldBuilder().getBuilder(), extensionRegistry);
+                    bitField0_ |= 0x00000001;
+                    break;
+                  } // case 10
+                case 18:
+                  {
+                    input.readMessage(getBarcodeFieldBuilder().getBuilder(), extensionRegistry);
+                    bitField0_ |= 0x00000002;
+                    break;
+                  } // case 18
+                default:
+                  {
+                    if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                      done = true; // was an endgroup tag
+                    }
+                    break;
+                  } // default:
+              } // switch (tag)
+            } // while (!done)
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.unwrapIOException();
+          } finally {
+            onChanged();
+          } // finally
+          return this;
+        }
+
+        private int bitField0_;
+
+        private com.google.cloud.documentai.v1beta2.Document.Page.Layout layout_;
+        private com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.documentai.v1beta2.Document.Page.Layout,
+                com.google.cloud.documentai.v1beta2.Document.Page.Layout.Builder,
+                com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder>
+            layoutBuilder_;
+        /**
+         *
+         *
+         * 
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+         * [DetectedBarcode][google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode].
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+         *
+         * @return Whether the layout field is set.
+         */
+        public boolean hasLayout() {
+          return ((bitField0_ & 0x00000001) != 0);
+        }
+        /**
+         *
+         *
+         * 
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+         * [DetectedBarcode][google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode].
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+         *
+         * @return The layout.
+         */
+        public com.google.cloud.documentai.v1beta2.Document.Page.Layout getLayout() {
+          if (layoutBuilder_ == null) {
+            return layout_ == null
+                ? com.google.cloud.documentai.v1beta2.Document.Page.Layout.getDefaultInstance()
+                : layout_;
+          } else {
+            return layoutBuilder_.getMessage();
+          }
+        }
+        /**
+         *
+         *
+         * 
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+         * [DetectedBarcode][google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode].
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+         */
+        public Builder setLayout(com.google.cloud.documentai.v1beta2.Document.Page.Layout value) {
+          if (layoutBuilder_ == null) {
+            if (value == null) {
+              throw new NullPointerException();
+            }
+            layout_ = value;
+          } else {
+            layoutBuilder_.setMessage(value);
+          }
+          bitField0_ |= 0x00000001;
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+         * [DetectedBarcode][google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode].
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+         */
+        public Builder setLayout(
+            com.google.cloud.documentai.v1beta2.Document.Page.Layout.Builder builderForValue) {
+          if (layoutBuilder_ == null) {
+            layout_ = builderForValue.build();
+          } else {
+            layoutBuilder_.setMessage(builderForValue.build());
+          }
+          bitField0_ |= 0x00000001;
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+         * [DetectedBarcode][google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode].
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+         */
+        public Builder mergeLayout(com.google.cloud.documentai.v1beta2.Document.Page.Layout value) {
+          if (layoutBuilder_ == null) {
+            if (((bitField0_ & 0x00000001) != 0)
+                && layout_ != null
+                && layout_
+                    != com.google.cloud.documentai.v1beta2.Document.Page.Layout
+                        .getDefaultInstance()) {
+              getLayoutBuilder().mergeFrom(value);
+            } else {
+              layout_ = value;
+            }
+          } else {
+            layoutBuilder_.mergeFrom(value);
+          }
+          bitField0_ |= 0x00000001;
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+         * [DetectedBarcode][google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode].
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+         */
+        public Builder clearLayout() {
+          bitField0_ = (bitField0_ & ~0x00000001);
+          layout_ = null;
+          if (layoutBuilder_ != null) {
+            layoutBuilder_.dispose();
+            layoutBuilder_ = null;
+          }
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+         * [DetectedBarcode][google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode].
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+         */
+        public com.google.cloud.documentai.v1beta2.Document.Page.Layout.Builder getLayoutBuilder() {
+          bitField0_ |= 0x00000001;
+          onChanged();
+          return getLayoutFieldBuilder().getBuilder();
+        }
+        /**
+         *
+         *
+         * 
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+         * [DetectedBarcode][google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode].
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+         */
+        public com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder
+            getLayoutOrBuilder() {
+          if (layoutBuilder_ != null) {
+            return layoutBuilder_.getMessageOrBuilder();
+          } else {
+            return layout_ == null
+                ? com.google.cloud.documentai.v1beta2.Document.Page.Layout.getDefaultInstance()
+                : layout_;
+          }
+        }
+        /**
+         *
+         *
+         * 
+         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+         * [DetectedBarcode][google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode].
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 1;
+         */
+        private com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.documentai.v1beta2.Document.Page.Layout,
+                com.google.cloud.documentai.v1beta2.Document.Page.Layout.Builder,
+                com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder>
+            getLayoutFieldBuilder() {
+          if (layoutBuilder_ == null) {
+            layoutBuilder_ =
+                new com.google.protobuf.SingleFieldBuilderV3<
+                    com.google.cloud.documentai.v1beta2.Document.Page.Layout,
+                    com.google.cloud.documentai.v1beta2.Document.Page.Layout.Builder,
+                    com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder>(
+                    getLayout(), getParentForChildren(), isClean());
+            layout_ = null;
+          }
+          return layoutBuilder_;
+        }
+
+        private com.google.cloud.documentai.v1beta2.Barcode barcode_;
+        private com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.documentai.v1beta2.Barcode,
+                com.google.cloud.documentai.v1beta2.Barcode.Builder,
+                com.google.cloud.documentai.v1beta2.BarcodeOrBuilder>
+            barcodeBuilder_;
+        /**
+         *
+         *
+         * 
+         * Detailed barcode information of the
+         * [DetectedBarcode][google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode].
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Barcode barcode = 2;
+         *
+         * @return Whether the barcode field is set.
+         */
+        public boolean hasBarcode() {
+          return ((bitField0_ & 0x00000002) != 0);
+        }
+        /**
+         *
+         *
+         * 
+         * Detailed barcode information of the
+         * [DetectedBarcode][google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode].
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Barcode barcode = 2;
+         *
+         * @return The barcode.
+         */
+        public com.google.cloud.documentai.v1beta2.Barcode getBarcode() {
+          if (barcodeBuilder_ == null) {
+            return barcode_ == null
+                ? com.google.cloud.documentai.v1beta2.Barcode.getDefaultInstance()
+                : barcode_;
+          } else {
+            return barcodeBuilder_.getMessage();
+          }
+        }
+        /**
+         *
+         *
+         * 
+         * Detailed barcode information of the
+         * [DetectedBarcode][google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode].
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Barcode barcode = 2;
+         */
+        public Builder setBarcode(com.google.cloud.documentai.v1beta2.Barcode value) {
+          if (barcodeBuilder_ == null) {
+            if (value == null) {
+              throw new NullPointerException();
+            }
+            barcode_ = value;
+          } else {
+            barcodeBuilder_.setMessage(value);
+          }
+          bitField0_ |= 0x00000002;
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * Detailed barcode information of the
+         * [DetectedBarcode][google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode].
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Barcode barcode = 2;
+         */
+        public Builder setBarcode(
+            com.google.cloud.documentai.v1beta2.Barcode.Builder builderForValue) {
+          if (barcodeBuilder_ == null) {
+            barcode_ = builderForValue.build();
+          } else {
+            barcodeBuilder_.setMessage(builderForValue.build());
+          }
+          bitField0_ |= 0x00000002;
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * Detailed barcode information of the
+         * [DetectedBarcode][google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode].
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Barcode barcode = 2;
+         */
+        public Builder mergeBarcode(com.google.cloud.documentai.v1beta2.Barcode value) {
+          if (barcodeBuilder_ == null) {
+            if (((bitField0_ & 0x00000002) != 0)
+                && barcode_ != null
+                && barcode_ != com.google.cloud.documentai.v1beta2.Barcode.getDefaultInstance()) {
+              getBarcodeBuilder().mergeFrom(value);
+            } else {
+              barcode_ = value;
+            }
+          } else {
+            barcodeBuilder_.mergeFrom(value);
+          }
+          bitField0_ |= 0x00000002;
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * Detailed barcode information of the
+         * [DetectedBarcode][google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode].
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Barcode barcode = 2;
+         */
+        public Builder clearBarcode() {
+          bitField0_ = (bitField0_ & ~0x00000002);
+          barcode_ = null;
+          if (barcodeBuilder_ != null) {
+            barcodeBuilder_.dispose();
+            barcodeBuilder_ = null;
+          }
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * Detailed barcode information of the
+         * [DetectedBarcode][google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode].
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Barcode barcode = 2;
+         */
+        public com.google.cloud.documentai.v1beta2.Barcode.Builder getBarcodeBuilder() {
+          bitField0_ |= 0x00000002;
+          onChanged();
+          return getBarcodeFieldBuilder().getBuilder();
+        }
+        /**
+         *
+         *
+         * 
+         * Detailed barcode information of the
+         * [DetectedBarcode][google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode].
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Barcode barcode = 2;
+         */
+        public com.google.cloud.documentai.v1beta2.BarcodeOrBuilder getBarcodeOrBuilder() {
+          if (barcodeBuilder_ != null) {
+            return barcodeBuilder_.getMessageOrBuilder();
+          } else {
+            return barcode_ == null
+                ? com.google.cloud.documentai.v1beta2.Barcode.getDefaultInstance()
+                : barcode_;
+          }
+        }
+        /**
+         *
+         *
+         * 
+         * Detailed barcode information of the
+         * [DetectedBarcode][google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode].
+         * 

+         *
+         * .google.cloud.documentai.v1beta2.Barcode barcode = 2;
+         */
+        private com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.documentai.v1beta2.Barcode,
+                com.google.cloud.documentai.v1beta2.Barcode.Builder,
+                com.google.cloud.documentai.v1beta2.BarcodeOrBuilder>
+            getBarcodeFieldBuilder() {
+          if (barcodeBuilder_ == null) {
+            barcodeBuilder_ =
+                new com.google.protobuf.SingleFieldBuilderV3<
+                    com.google.cloud.documentai.v1beta2.Barcode,
+                    com.google.cloud.documentai.v1beta2.Barcode.Builder,
+                    com.google.cloud.documentai.v1beta2.BarcodeOrBuilder>(
+                    getBarcode(), getParentForChildren(), isClean());
+            barcode_ = null;
+          }
+          return barcodeBuilder_;
+        }
+
+        @java.lang.Override
+        public final Builder setUnknownFields(
+            final com.google.protobuf.UnknownFieldSet unknownFields) {
+          return super.setUnknownFields(unknownFields);
+        }
+
+        @java.lang.Override
+        public final Builder mergeUnknownFields(
+            final com.google.protobuf.UnknownFieldSet unknownFields) {
+          return super.mergeUnknownFields(unknownFields);
+        }
+
+        // @@protoc_insertion_point(builder_scope:google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode)
+      }
+
+      // @@protoc_insertion_point(class_scope:google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode)
+      private static final com.google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode
+          DEFAULT_INSTANCE;
+
+      static {
+        DEFAULT_INSTANCE = new com.google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode();
+      }
+
+      public static com.google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode
+          getDefaultInstance() {
+        return DEFAULT_INSTANCE;
+      }
+
+      private static final com.google.protobuf.Parser PARSER =
+          new com.google.protobuf.AbstractParser() {
+            @java.lang.Override
+            public DetectedBarcode parsePartialFrom(
+                com.google.protobuf.CodedInputStream input,
+                com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+                throws com.google.protobuf.InvalidProtocolBufferException {
+              Builder builder = newBuilder();
+              try {
+                builder.mergeFrom(input, extensionRegistry);
+              } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+                throw e.setUnfinishedMessage(builder.buildPartial());
+              } catch (com.google.protobuf.UninitializedMessageException e) {
+                throw e.asInvalidProtocolBufferException()
+                    .setUnfinishedMessage(builder.buildPartial());
+              } catch (java.io.IOException e) {
+                throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                    .setUnfinishedMessage(builder.buildPartial());
+              }
+              return builder.buildPartial();
+            }
+          };
+
+      public static com.google.protobuf.Parser parser() {
+        return PARSER;
+      }
+
+      @java.lang.Override
+      public com.google.protobuf.Parser getParserForType() {
+        return PARSER;
+      }
+
+      @java.lang.Override
+      public com.google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode
+          getDefaultInstanceForType() {
+        return DEFAULT_INSTANCE;
+      }
+    }
+
+    public interface DetectedLanguageOrBuilder
+        extends
+        // @@protoc_insertion_point(interface_extends:google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage)
+        com.google.protobuf.MessageOrBuilder {
+
+      /**
+       *
+       *
+       * 
+       * The [BCP-47 language
+       * code](https://www.unicode.org/reports/tr35/#Unicode_locale_identifier),
+       * such as `en-US` or `sr-Latn`.
+       * 

+       *
+       * string language_code = 1;
+       *
+       * @return The languageCode.
+       */
+      java.lang.String getLanguageCode();
+      /**
+       *
+       *
+       * 
+       * The [BCP-47 language
+       * code](https://www.unicode.org/reports/tr35/#Unicode_locale_identifier),
+       * such as `en-US` or `sr-Latn`.
+       * 

+       *
+       * string language_code = 1;
+       *
+       * @return The bytes for languageCode.
+       */
+      com.google.protobuf.ByteString getLanguageCodeBytes();
+
+      /**
+       *
+       *
+       * 
+       * Confidence of detected language. Range `[0, 1]`.
+       * 

+       *
+       * float confidence = 2;
+       *
+       * @return The confidence.
+       */
+      float getConfidence();
+    }
+    /**
+     *
+     *
+     * 
+     * Detected language for a structural component.
+     * 

+     *
+     * Protobuf type {@code google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage}
+     */
+    public static final class DetectedLanguage extends com.google.protobuf.GeneratedMessageV3
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+        // @@protoc_insertion_point(message_implements:google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage)
+        DetectedLanguageOrBuilder {
+      private static final long serialVersionUID = 0L;
+      // Use DetectedLanguage.newBuilder() to construct.
+      private DetectedLanguage(com.google.protobuf.GeneratedMessageV3.Builder builder) {
+        super(builder);
+      }
+
+      private DetectedLanguage() {
+        languageCode_ = "";
+      }
+
+      @java.lang.Override
+      @SuppressWarnings({"unused"})
+      protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+        return new DetectedLanguage();
+      }
+
+      public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+        return com.google.cloud.documentai.v1beta2.DocumentProto
+            .internal_static_google_cloud_documentai_v1beta2_Document_Page_DetectedLanguage_descriptor;
+      }
+
+      @java.lang.Override
+      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+          internalGetFieldAccessorTable() {
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+            .ensureFieldAccessorsInitialized(
+                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.class,
+                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder.class);
+      }
+
+      public static final int LANGUAGE_CODE_FIELD_NUMBER = 1;
+
+      @SuppressWarnings("serial")
+      private volatile java.lang.Object languageCode_ = "";
+      /**
+       *
+       *
+       * 
+       * The [BCP-47 language
+       * code](https://www.unicode.org/reports/tr35/#Unicode_locale_identifier),
+       * such as `en-US` or `sr-Latn`.
+       * 

+       *
+       * string language_code = 1;
+       *
+       * @return The languageCode.
+       */
+      @java.lang.Override
+      public java.lang.String getLanguageCode() {
+        java.lang.Object ref = languageCode_;
+        if (ref instanceof java.lang.String) {
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+          com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+          java.lang.String s = bs.toStringUtf8();
+          languageCode_ = s;
+          return s;
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * The [BCP-47 language
+       * code](https://www.unicode.org/reports/tr35/#Unicode_locale_identifier),
+       * such as `en-US` or `sr-Latn`.
+       * 

+       *
+       * string language_code = 1;
+       *
+       * @return The bytes for languageCode.
+       */
+      @java.lang.Override
+      public com.google.protobuf.ByteString getLanguageCodeBytes() {
+        java.lang.Object ref = languageCode_;
+        if (ref instanceof java.lang.String) {
+          com.google.protobuf.ByteString b =
+              com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+          languageCode_ = b;
+          return b;
+        } else {
+          return (com.google.protobuf.ByteString) ref;
+        }
+      }
+
+      public static final int CONFIDENCE_FIELD_NUMBER = 2;
+      private float confidence_ = 0F;
+      /**
+       *
+       *
+       * 
+       * Confidence of detected language. Range `[0, 1]`.
+       * 

+       *
+       * float confidence = 2;
+       *
+       * @return The confidence.
+       */
+      @java.lang.Override
+      public float getConfidence() {
+        return confidence_;
+      }
+
+      private byte memoizedIsInitialized = -1;
+
+      @java.lang.Override
+      public final boolean isInitialized() {
+        byte isInitialized = memoizedIsInitialized;
+        if (isInitialized == 1) return true;
+        if (isInitialized == 0) return false;
+
+        memoizedIsInitialized = 1;
+        return true;
+      }
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+      @java.lang.Override
+      public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+        if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(languageCode_)) {
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+        }
+        if (java.lang.Float.floatToRawIntBits(confidence_) != 0) {
+          output.writeFloat(2, confidence_);
+        }
+        getUnknownFields().writeTo(output);
+      }
+
+      @java.lang.Override
+      public int getSerializedSize() {
+        int size = memoizedSize;
+        if (size != -1) return size;
+
+        size = 0;
+        if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(languageCode_)) {
+          size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, languageCode_);
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+        if (java.lang.Float.floatToRawIntBits(confidence_) != 0) {
+          size += com.google.protobuf.CodedOutputStream.computeFloatSize(2, confidence_);
+        }
+        size += getUnknownFields().getSerializedSize();
+        memoizedSize = size;
+        return size;
+      }
+
+      @java.lang.Override
+      public boolean equals(final java.lang.Object obj) {
+        if (obj == this) {
+          return true;
+        }
+        if (!(obj instanceof com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage)) {
+          return super.equals(obj);
+        }
+        com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage other =
+            (com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage) obj;
+
+        if (!getLanguageCode().equals(other.getLanguageCode())) return false;
+        if (java.lang.Float.floatToIntBits(getConfidence())
+            != java.lang.Float.floatToIntBits(other.getConfidence())) return false;
+        if (!getUnknownFields().equals(other.getUnknownFields())) return false;
+        return true;
+      }
+
+      @java.lang.Override
+      public int hashCode() {
+        if (memoizedHashCode != 0) {
+          return memoizedHashCode;
+        }
+        int hash = 41;
+        hash = (19 * hash) + getDescriptor().hashCode();
+        hash = (37 * hash) + LANGUAGE_CODE_FIELD_NUMBER;
+        hash = (53 * hash) + getLanguageCode().hashCode();
+        hash = (37 * hash) + CONFIDENCE_FIELD_NUMBER;
+        hash = (53 * hash) + java.lang.Float.floatToIntBits(getConfidence());
+        hash = (29 * hash) + getUnknownFields().hashCode();
+        memoizedHashCode = hash;
+        return hash;
+      }
+
+      public static com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage parseFrom(
+          java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+        return PARSER.parseFrom(data);
+      }
+
+      public static com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage parseFrom(
+          java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws com.google.protobuf.InvalidProtocolBufferException {
+        return PARSER.parseFrom(data, extensionRegistry);
+      }
+
+      public static com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage parseFrom(
+          com.google.protobuf.ByteString data)
+          throws com.google.protobuf.InvalidProtocolBufferException {
+        return PARSER.parseFrom(data);
+      }
+
+      public static com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage parseFrom(
+          com.google.protobuf.ByteString data,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws com.google.protobuf.InvalidProtocolBufferException {
+        return PARSER.parseFrom(data, extensionRegistry);
+      }
+
+      public static com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage parseFrom(
+          byte[] data) throws com.google.protobuf.InvalidProtocolBufferException {
+        return PARSER.parseFrom(data);
+      }
+
+      public static com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage parseFrom(
+          byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws com.google.protobuf.InvalidProtocolBufferException {
+        return PARSER.parseFrom(data, extensionRegistry);
+      }
+
+      public static com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage parseFrom(
+          java.io.InputStream input) throws java.io.IOException {
+        return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+      }
+
+      public static com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage parseFrom(
+          java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+        return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+            PARSER, input, extensionRegistry);
+      }
+
+      public static com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage
+          parseDelimitedFrom(java.io.InputStream input) throws java.io.IOException {
+        return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+      }
+
+      public static com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage
+          parseDelimitedFrom(
+              java.io.InputStream input,
+              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+              throws java.io.IOException {
+        return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+            PARSER, input, extensionRegistry);
+      }
+
+      public static com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage parseFrom(
+          com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+        return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+      }
+
+      public static com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage parseFrom(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+        return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+            PARSER, input, extensionRegistry);
+      }
+
+      @java.lang.Override
+      public Builder newBuilderForType() {
+        return newBuilder();
+      }
+
+      public static Builder newBuilder() {
+        return DEFAULT_INSTANCE.toBuilder();
+      }
+
+      public static Builder newBuilder(
+          com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage prototype) {
+        return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+      }
+
+      @java.lang.Override
+      public Builder toBuilder() {
+        return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+      }
+
+      @java.lang.Override
+      protected Builder newBuilderForType(
+          com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+        Builder builder = new Builder(parent);
+        return builder;
+      }
+      /**
+       *
+       *
+       * 
+       * Detected language for a structural component.
+       * 

+       *
+       * Protobuf type {@code google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage}
+       */
+      public static final class Builder
+          extends com.google.protobuf.GeneratedMessageV3.Builder
+          implements
+          // @@protoc_insertion_point(builder_implements:google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage)
+          com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder {
+        public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+          return com.google.cloud.documentai.v1beta2.DocumentProto
+              .internal_static_google_cloud_documentai_v1beta2_Document_Page_DetectedLanguage_descriptor;
+        }
+
+        @java.lang.Override
+        protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+            internalGetFieldAccessorTable() {
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+              .ensureFieldAccessorsInitialized(
+                  com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.class,
+                  com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder.class);
+        }
+
+        // Construct using
+        // com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.newBuilder()
+        private Builder() {}
+
+        private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+          super(parent);
+        }
+
+        @java.lang.Override
+        public Builder clear() {
+          super.clear();
+          bitField0_ = 0;
+          languageCode_ = "";
+          confidence_ = 0F;
+          return this;
+        }
+
+        @java.lang.Override
+        public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+          return com.google.cloud.documentai.v1beta2.DocumentProto
+              .internal_static_google_cloud_documentai_v1beta2_Document_Page_DetectedLanguage_descriptor;
+        }
+
+        @java.lang.Override
+        public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage
+            getDefaultInstanceForType() {
+          return com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage
+              .getDefaultInstance();
+        }
+
+        @java.lang.Override
+        public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage build() {
+          com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage result =
+              buildPartial();
+          if (!result.isInitialized()) {
+            throw newUninitializedMessageException(result);
+          }
+          return result;
+        }
+
+        @java.lang.Override
+        public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage buildPartial() {
+          com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage result =
+              new com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage(this);
+          if (bitField0_ != 0) {
+            buildPartial0(result);
+          }
+          onBuilt();
+          return result;
+        }
+
+        private void buildPartial0(
+            com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage result) {
+          int from_bitField0_ = bitField0_;
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+        @java.lang.Override
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+        @java.lang.Override
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+        @java.lang.Override
+        public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+          return super.clearField(field);
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+
+        @java.lang.Override
+        public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+          return super.clearOneof(oneof);
+        }
+
+        @java.lang.Override
+        public Builder setRepeatedField(
+            com.google.protobuf.Descriptors.FieldDescriptor field,
+            int index,
+            java.lang.Object value) {
+          return super.setRepeatedField(field, index, value);
+        }
+
+        @java.lang.Override
+        public Builder addRepeatedField(
+            com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+          return super.addRepeatedField(field, value);
+        }
+
+        @java.lang.Override
+        public Builder mergeFrom(com.google.protobuf.Message other) {
+          if (other instanceof com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage) {
+            return mergeFrom(
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+          } else {
+            super.mergeFrom(other);
+            return this;
+          }
+        }
+
+        public Builder mergeFrom(
+            com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage other) {
+          if (other
+              == com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage
+                  .getDefaultInstance()) return this;
+          if (!other.getLanguageCode().isEmpty()) {
+            languageCode_ = other.languageCode_;
+            bitField0_ |= 0x00000001;
+            onChanged();
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+          if (other.getConfidence() != 0F) {
+            setConfidence(other.getConfidence());
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+          this.mergeUnknownFields(other.getUnknownFields());
+          onChanged();
+          return this;
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+
+        @java.lang.Override
+        public final boolean isInitialized() {
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+
+        @java.lang.Override
+        public Builder mergeFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws java.io.IOException {
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+                  break;
+                case 10:
+                  {
+                    languageCode_ = input.readStringRequireUtf8();
+                    bitField0_ |= 0x00000001;
+                    break;
+                  } // case 10
+                case 21:
+                  {
+                    confidence_ = input.readFloat();
+                    bitField0_ |= 0x00000002;
+                    break;
+                  } // case 21
+                default:
+                  {
+                    if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                      done = true; // was an endgroup tag
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+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.unwrapIOException();
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+            onChanged();
+          } // finally
+          return this;
+        }
+
+        private int bitField0_;
+
+        private java.lang.Object languageCode_ = "";
+        /**
+         *
+         *
+         * 
+         * The [BCP-47 language
+         * code](https://www.unicode.org/reports/tr35/#Unicode_locale_identifier),
+         * such as `en-US` or `sr-Latn`.
+         * 

+         *
+         * string language_code = 1;
+         *
+         * @return The languageCode.
+         */
+        public java.lang.String getLanguageCode() {
+          java.lang.Object ref = languageCode_;
+          if (!(ref instanceof java.lang.String)) {
+            com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+            java.lang.String s = bs.toStringUtf8();
+            languageCode_ = s;
+            return s;
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+            return (java.lang.String) ref;
+          }
+        }
+        /**
+         *
+         *
+         * 
+         * The [BCP-47 language
+         * code](https://www.unicode.org/reports/tr35/#Unicode_locale_identifier),
+         * such as `en-US` or `sr-Latn`.
+         * 

+         *
+         * string language_code = 1;
+         *
+         * @return The bytes for languageCode.
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+        public com.google.protobuf.ByteString getLanguageCodeBytes() {
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+            com.google.protobuf.ByteString b =
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+            languageCode_ = b;
+            return b;
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+            return (com.google.protobuf.ByteString) ref;
+          }
+        }
+        /**
+         *
+         *
+         * 
+         * The [BCP-47 language
+         * code](https://www.unicode.org/reports/tr35/#Unicode_locale_identifier),
+         * such as `en-US` or `sr-Latn`.
+         * 

+         *
+         * string language_code = 1;
+         *
+         * @param value The languageCode to set.
+         * @return This builder for chaining.
+         */
+        public Builder setLanguageCode(java.lang.String value) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          languageCode_ = value;
+          bitField0_ |= 0x00000001;
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * The [BCP-47 language
+         * code](https://www.unicode.org/reports/tr35/#Unicode_locale_identifier),
+         * such as `en-US` or `sr-Latn`.
+         * 

+         *
+         * string language_code = 1;
+         *
+         * @return This builder for chaining.
+         */
+        public Builder clearLanguageCode() {
+          languageCode_ = getDefaultInstance().getLanguageCode();
+          bitField0_ = (bitField0_ & ~0x00000001);
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * The [BCP-47 language
+         * code](https://www.unicode.org/reports/tr35/#Unicode_locale_identifier),
+         * such as `en-US` or `sr-Latn`.
+         * 

+         *
+         * string language_code = 1;
+         *
+         * @param value The bytes for languageCode to set.
+         * @return This builder for chaining.
+         */
+        public Builder setLanguageCodeBytes(com.google.protobuf.ByteString value) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          checkByteStringIsUtf8(value);
+          languageCode_ = value;
+          bitField0_ |= 0x00000001;
+          onChanged();
+          return this;
+        }
+
+        private float confidence_;
+        /**
+         *
+         *
+         * 
+         * Confidence of detected language. Range `[0, 1]`.
+         * 

+         *
+         * float confidence = 2;
+         *
+         * @return The confidence.
+         */
+        @java.lang.Override
+        public float getConfidence() {
+          return confidence_;
+        }
+        /**
+         *
+         *
+         * 
+         * Confidence of detected language. Range `[0, 1]`.
+         * 

+         *
+         * float confidence = 2;
+         *
+         * @param value The confidence to set.
+         * @return This builder for chaining.
+         */
+        public Builder setConfidence(float value) {
+
+          confidence_ = value;
+          bitField0_ |= 0x00000002;
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * Confidence of detected language. Range `[0, 1]`.
+         * 

+         *
+         * float confidence = 2;
+         *
+         * @return This builder for chaining.
+         */
+        public Builder clearConfidence() {
+          bitField0_ = (bitField0_ & ~0x00000002);
+          confidence_ = 0F;
+          onChanged();
+          return this;
+        }
+
+        @java.lang.Override
+        public final Builder setUnknownFields(
+            final com.google.protobuf.UnknownFieldSet unknownFields) {
+          return super.setUnknownFields(unknownFields);
+        }
+
+        @java.lang.Override
+        public final Builder mergeUnknownFields(
+            final com.google.protobuf.UnknownFieldSet unknownFields) {
+          return super.mergeUnknownFields(unknownFields);
+        }
+
+        // @@protoc_insertion_point(builder_scope:google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage)
+      }
+
+      // @@protoc_insertion_point(class_scope:google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage)
+      private static final com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage
+          DEFAULT_INSTANCE;
+
+      static {
+        DEFAULT_INSTANCE = new com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage();
+      }
+
+      public static com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage
+          getDefaultInstance() {
+        return DEFAULT_INSTANCE;
+      }
+
+      private static final com.google.protobuf.Parser PARSER =
+          new com.google.protobuf.AbstractParser() {
+            @java.lang.Override
+            public DetectedLanguage parsePartialFrom(
+                com.google.protobuf.CodedInputStream input,
+                com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+                throws com.google.protobuf.InvalidProtocolBufferException {
+              Builder builder = newBuilder();
+              try {
+                builder.mergeFrom(input, extensionRegistry);
+              } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+                throw e.setUnfinishedMessage(builder.buildPartial());
+              } catch (com.google.protobuf.UninitializedMessageException e) {
+                throw e.asInvalidProtocolBufferException()
+                    .setUnfinishedMessage(builder.buildPartial());
+              } catch (java.io.IOException e) {
+                throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                    .setUnfinishedMessage(builder.buildPartial());
+              }
+              return builder.buildPartial();
+            }
+          };
+
+      public static com.google.protobuf.Parser parser() {
+        return PARSER;
+      }
+
+      @java.lang.Override
+      public com.google.protobuf.Parser getParserForType() {
+        return PARSER;
+      }
+
+      @java.lang.Override
+      public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage
+          getDefaultInstanceForType() {
+        return DEFAULT_INSTANCE;
+      }
+    }
+
+    public interface ImageQualityScoresOrBuilder
+        extends
+        // @@protoc_insertion_point(interface_extends:google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores)
+        com.google.protobuf.MessageOrBuilder {
+
+      /**
+       *
+       *
+       * 
+       * The overall quality score. Range `[0, 1]` where `1` is perfect quality.
+       * 

+       *
+       * float quality_score = 1;
+       *
+       * @return The qualityScore.
+       */
+      float getQualityScore();
+
+      /**
+       *
+       *
+       * 
+       * A list of detected defects.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores.DetectedDefect detected_defects = 2;
+       * 
+       */
+      java.util.List<
+              com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores.DetectedDefect>
+          getDetectedDefectsList();
+      /**
+       *
+       *
+       * 
+       * A list of detected defects.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores.DetectedDefect detected_defects = 2;
+       * 
+       */
+      com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores.DetectedDefect
+          getDetectedDefects(int index);
+      /**
+       *
+       *
+       * 
+       * A list of detected defects.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores.DetectedDefect detected_defects = 2;
+       * 
+       */
+      int getDetectedDefectsCount();
+      /**
+       *
+       *
+       * 
+       * A list of detected defects.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores.DetectedDefect detected_defects = 2;
+       * 
+       */
+      java.util.List<
+              ? extends
+                  com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores
+                      .DetectedDefectOrBuilder>
+          getDetectedDefectsOrBuilderList();
+      /**
+       *
+       *
+       * 
+       * A list of detected defects.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores.DetectedDefect detected_defects = 2;
+       * 
+       */
+      com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores.DetectedDefectOrBuilder
+          getDetectedDefectsOrBuilder(int index);
+    }
+    /**
+     *
+     *
+     * 
+     * Image quality scores for the page image.
+     * 

+     *
+     * Protobuf type {@code google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores}
+     */
+    public static final class ImageQualityScores extends com.google.protobuf.GeneratedMessageV3
+        implements
+        // @@protoc_insertion_point(message_implements:google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores)
+        ImageQualityScoresOrBuilder {
+      private static final long serialVersionUID = 0L;
+      // Use ImageQualityScores.newBuilder() to construct.
+      private ImageQualityScores(com.google.protobuf.GeneratedMessageV3.Builder builder) {
+        super(builder);
+      }
+
+      private ImageQualityScores() {
+        detectedDefects_ = java.util.Collections.emptyList();
+      }
+
+      @java.lang.Override
+      @SuppressWarnings({"unused"})
+      protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+        return new ImageQualityScores();
+      }
+
+      public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+        return com.google.cloud.documentai.v1beta2.DocumentProto
+            .internal_static_google_cloud_documentai_v1beta2_Document_Page_ImageQualityScores_descriptor;
+      }
+
+      @java.lang.Override
+      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+          internalGetFieldAccessorTable() {
+        return com.google.cloud.documentai.v1beta2.DocumentProto
+            .internal_static_google_cloud_documentai_v1beta2_Document_Page_ImageQualityScores_fieldAccessorTable
+            .ensureFieldAccessorsInitialized(
+                com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores.class,
+                com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores.Builder.class);
+      }
+
+      public interface DetectedDefectOrBuilder
+          extends
+          // @@protoc_insertion_point(interface_extends:google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores.DetectedDefect)
+          com.google.protobuf.MessageOrBuilder {
+
+        /**
+         *
+         *
+         * 
+         * Name of the defect type. Supported values are:
+         *
+         * - `quality/defect_blurry`
+         * - `quality/defect_noisy`
+         * - `quality/defect_dark`
+         * - `quality/defect_faint`
+         * - `quality/defect_text_too_small`
+         * - `quality/defect_document_cutoff`
+         * - `quality/defect_text_cutoff`
+         * - `quality/defect_glare`
+         * 

+         *
+         * string type = 1;
+         *
+         * @return The type.
+         */
+        java.lang.String getType();
+        /**
+         *
+         *
+         * 
+         * Name of the defect type. Supported values are:
+         *
+         * - `quality/defect_blurry`
+         * - `quality/defect_noisy`
+         * - `quality/defect_dark`
+         * - `quality/defect_faint`
+         * - `quality/defect_text_too_small`
+         * - `quality/defect_document_cutoff`
+         * - `quality/defect_text_cutoff`
+         * - `quality/defect_glare`
+         * 

+         *
+         * string type = 1;
+         *
+         * @return The bytes for type.
+         */
+        com.google.protobuf.ByteString getTypeBytes();
+
+        /**
+         *
+         *
+         * 
+         * Confidence of detected defect. Range `[0, 1]` where `1` indicates
+         * strong confidence that the defect exists.
+         * 

+         *
+         * float confidence = 2;
+         *
+         * @return The confidence.
+         */
+        float getConfidence();
+      }
+      /**
+       *
+       *
+       * 
+       * Image Quality Defects
+       * 

+       *
+       * Protobuf type {@code
+       * google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores.DetectedDefect}
+       */
+      public static final class DetectedDefect extends com.google.protobuf.GeneratedMessageV3
+          implements
+          // @@protoc_insertion_point(message_implements:google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores.DetectedDefect)
+          DetectedDefectOrBuilder {
+        private static final long serialVersionUID = 0L;
+        // Use DetectedDefect.newBuilder() to construct.
+        private DetectedDefect(com.google.protobuf.GeneratedMessageV3.Builder builder) {
+          super(builder);
+        }
+
+        private DetectedDefect() {
+          type_ = "";
+        }
+
+        @java.lang.Override
+        @SuppressWarnings({"unused"})
+        protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+          return new DetectedDefect();
+        }
+
+        public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+          return com.google.cloud.documentai.v1beta2.DocumentProto
+              .internal_static_google_cloud_documentai_v1beta2_Document_Page_ImageQualityScores_DetectedDefect_descriptor;
+        }
+
+        @java.lang.Override
+        protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+            internalGetFieldAccessorTable() {
+          return com.google.cloud.documentai.v1beta2.DocumentProto
+              .internal_static_google_cloud_documentai_v1beta2_Document_Page_ImageQualityScores_DetectedDefect_fieldAccessorTable
+              .ensureFieldAccessorsInitialized(
+                  com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores
+                      .DetectedDefect.class,
+                  com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores
+                      .DetectedDefect.Builder.class);
+        }
+
+        public static final int TYPE_FIELD_NUMBER = 1;
+
+        @SuppressWarnings("serial")
+        private volatile java.lang.Object type_ = "";
+        /**
+         *
+         *
+         * 
+         * Name of the defect type. Supported values are:
+         *
+         * - `quality/defect_blurry`
+         * - `quality/defect_noisy`
+         * - `quality/defect_dark`
+         * - `quality/defect_faint`
+         * - `quality/defect_text_too_small`
+         * - `quality/defect_document_cutoff`
+         * - `quality/defect_text_cutoff`
+         * - `quality/defect_glare`
+         * 

+         *
+         * string type = 1;
+         *
+         * @return The type.
+         */
+        @java.lang.Override
+        public java.lang.String getType() {
+          java.lang.Object ref = type_;
+          if (ref instanceof java.lang.String) {
+            return (java.lang.String) ref;
+          } else {
+            com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+            java.lang.String s = bs.toStringUtf8();
+            type_ = s;
+            return s;
+          }
+        }
+        /**
+         *
+         *
+         * 
+         * Name of the defect type. Supported values are:
+         *
+         * - `quality/defect_blurry`
+         * - `quality/defect_noisy`
+         * - `quality/defect_dark`
+         * - `quality/defect_faint`
+         * - `quality/defect_text_too_small`
+         * - `quality/defect_document_cutoff`
+         * - `quality/defect_text_cutoff`
+         * - `quality/defect_glare`
+         * 

+         *
+         * string type = 1;
+         *
+         * @return The bytes for type.
+         */
+        @java.lang.Override
+        public com.google.protobuf.ByteString getTypeBytes() {
+          java.lang.Object ref = type_;
+          if (ref instanceof java.lang.String) {
+            com.google.protobuf.ByteString b =
+                com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+            type_ = b;
+            return b;
+          } else {
+            return (com.google.protobuf.ByteString) ref;
+          }
+        }
+
+        public static final int CONFIDENCE_FIELD_NUMBER = 2;
+        private float confidence_ = 0F;
+        /**
+         *
+         *
+         * 
+         * Confidence of detected defect. Range `[0, 1]` where `1` indicates
+         * strong confidence that the defect exists.
+         * 

+         *
+         * float confidence = 2;
+         *
+         * @return The confidence.
+         */
+        @java.lang.Override
+        public float getConfidence() {
+          return confidence_;
+        }
+
+        private byte memoizedIsInitialized = -1;
+
+        @java.lang.Override
+        public final boolean isInitialized() {
+          byte isInitialized = memoizedIsInitialized;
+          if (isInitialized == 1) return true;
+          if (isInitialized == 0) return false;
+
+          memoizedIsInitialized = 1;
+          return true;
+        }
+
+        @java.lang.Override
+        public void writeTo(com.google.protobuf.CodedOutputStream output)
+            throws java.io.IOException {
+          if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(type_)) {
+            com.google.protobuf.GeneratedMessageV3.writeString(output, 1, type_);
+          }
+          if (java.lang.Float.floatToRawIntBits(confidence_) != 0) {
+            output.writeFloat(2, confidence_);
+          }
+          getUnknownFields().writeTo(output);
+        }
+
+        @java.lang.Override
+        public int getSerializedSize() {
+          int size = memoizedSize;
+          if (size != -1) return size;
+
+          size = 0;
+          if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(type_)) {
+            size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, type_);
+          }
+          if (java.lang.Float.floatToRawIntBits(confidence_) != 0) {
+            size += com.google.protobuf.CodedOutputStream.computeFloatSize(2, confidence_);
+          }
+          size += getUnknownFields().getSerializedSize();
+          memoizedSize = size;
+          return size;
+        }
+
+        @java.lang.Override
+        public boolean equals(final java.lang.Object obj) {
+          if (obj == this) {
+            return true;
+          }
+          if (!(obj
+              instanceof
+              com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores
+                  .DetectedDefect)) {
+            return super.equals(obj);
+          }
+          com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores.DetectedDefect
+              other =
+                  (com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores
+                          .DetectedDefect)
+                      obj;
+
+          if (!getType().equals(other.getType())) return false;
+          if (java.lang.Float.floatToIntBits(getConfidence())
+              != java.lang.Float.floatToIntBits(other.getConfidence())) return false;
+          if (!getUnknownFields().equals(other.getUnknownFields())) return false;
+          return true;
+        }
+
+        @java.lang.Override
+        public int hashCode() {
+          if (memoizedHashCode != 0) {
+            return memoizedHashCode;
+          }
+          int hash = 41;
+          hash = (19 * hash) + getDescriptor().hashCode();
+          hash = (37 * hash) + TYPE_FIELD_NUMBER;
+          hash = (53 * hash) + getType().hashCode();
+          hash = (37 * hash) + CONFIDENCE_FIELD_NUMBER;
+          hash = (53 * hash) + java.lang.Float.floatToIntBits(getConfidence());
+          hash = (29 * hash) + getUnknownFields().hashCode();
+          memoizedHashCode = hash;
+          return hash;
+        }
+
+        public static com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores
+                .DetectedDefect
+            parseFrom(java.nio.ByteBuffer data)
+                throws com.google.protobuf.InvalidProtocolBufferException {
+          return PARSER.parseFrom(data);
+        }
+
+        public static com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores
+                .DetectedDefect
+            parseFrom(
+                java.nio.ByteBuffer data,
+                com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+                throws com.google.protobuf.InvalidProtocolBufferException {
+          return PARSER.parseFrom(data, extensionRegistry);
+        }
+
+        public static com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores
+                .DetectedDefect
+            parseFrom(com.google.protobuf.ByteString data)
+                throws com.google.protobuf.InvalidProtocolBufferException {
+          return PARSER.parseFrom(data);
+        }
+
+        public static com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores
+                .DetectedDefect
+            parseFrom(
+                com.google.protobuf.ByteString data,
+                com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+                throws com.google.protobuf.InvalidProtocolBufferException {
+          return PARSER.parseFrom(data, extensionRegistry);
+        }
+
+        public static com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores
+                .DetectedDefect
+            parseFrom(byte[] data) throws com.google.protobuf.InvalidProtocolBufferException {
+          return PARSER.parseFrom(data);
+        }
+
+        public static com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores
+                .DetectedDefect
+            parseFrom(byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+                throws com.google.protobuf.InvalidProtocolBufferException {
+          return PARSER.parseFrom(data, extensionRegistry);
+        }
+
+        public static com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores
+                .DetectedDefect
+            parseFrom(java.io.InputStream input) throws java.io.IOException {
+          return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+        }
+
+        public static com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores
+                .DetectedDefect
+            parseFrom(
+                java.io.InputStream input,
+                com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+                throws java.io.IOException {
+          return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+              PARSER, input, extensionRegistry);
+        }
+
+        public static com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores
+                .DetectedDefect
+            parseDelimitedFrom(java.io.InputStream input) throws java.io.IOException {
+          return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+              PARSER, input);
+        }
+
+        public static com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores
+                .DetectedDefect
+            parseDelimitedFrom(
+                java.io.InputStream input,
+                com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+                throws java.io.IOException {
+          return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+              PARSER, input, extensionRegistry);
+        }
+
+        public static com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores
+                .DetectedDefect
+            parseFrom(com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+          return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+        }
+
+        public static com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores
+                .DetectedDefect
+            parseFrom(
+                com.google.protobuf.CodedInputStream input,
+                com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+                throws java.io.IOException {
+          return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+              PARSER, input, extensionRegistry);
+        }
+
+        @java.lang.Override
+        public Builder newBuilderForType() {
+          return newBuilder();
+        }
+
+        public static Builder newBuilder() {
+          return DEFAULT_INSTANCE.toBuilder();
+        }
+
+        public static Builder newBuilder(
+            com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores.DetectedDefect
+                prototype) {
+          return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+        }
+
+        @java.lang.Override
+        public Builder toBuilder() {
+          return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+        }
+
+        @java.lang.Override
+        protected Builder newBuilderForType(
+            com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+          Builder builder = new Builder(parent);
+          return builder;
+        }
+        /**
+         *
+         *
+         * 
+         * Image Quality Defects
+         * 

+         *
+         * Protobuf type {@code
+         * google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores.DetectedDefect}
+         */
+        public static final class Builder
+            extends com.google.protobuf.GeneratedMessageV3.Builder
+            implements
+            // @@protoc_insertion_point(builder_implements:google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores.DetectedDefect)
+            com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores
+                .DetectedDefectOrBuilder {
+          public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+            return com.google.cloud.documentai.v1beta2.DocumentProto
+                .internal_static_google_cloud_documentai_v1beta2_Document_Page_ImageQualityScores_DetectedDefect_descriptor;
+          }
+
+          @java.lang.Override
+          protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+              internalGetFieldAccessorTable() {
+            return com.google.cloud.documentai.v1beta2.DocumentProto
+                .internal_static_google_cloud_documentai_v1beta2_Document_Page_ImageQualityScores_DetectedDefect_fieldAccessorTable
+                .ensureFieldAccessorsInitialized(
+                    com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores
+                        .DetectedDefect.class,
+                    com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores
+                        .DetectedDefect.Builder.class);
+          }
+
+          // Construct using
+          // com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores.DetectedDefect.newBuilder()
+          private Builder() {}
+
+          private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+            super(parent);
+          }
+
+          @java.lang.Override
+          public Builder clear() {
+            super.clear();
+            bitField0_ = 0;
+            type_ = "";
+            confidence_ = 0F;
+            return this;
+          }
+
+          @java.lang.Override
+          public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+            return com.google.cloud.documentai.v1beta2.DocumentProto
+                .internal_static_google_cloud_documentai_v1beta2_Document_Page_ImageQualityScores_DetectedDefect_descriptor;
+          }
+
+          @java.lang.Override
+          public com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores.DetectedDefect
+              getDefaultInstanceForType() {
+            return com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores
+                .DetectedDefect.getDefaultInstance();
+          }
+
+          @java.lang.Override
+          public com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores.DetectedDefect
+              build() {
+            com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores.DetectedDefect
+                result = buildPartial();
+            if (!result.isInitialized()) {
+              throw newUninitializedMessageException(result);
+            }
+            return result;
+          }
+
+          @java.lang.Override
+          public com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores.DetectedDefect
+              buildPartial() {
+            com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores.DetectedDefect
+                result =
+                    new com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores
+                        .DetectedDefect(this);
+            if (bitField0_ != 0) {
+              buildPartial0(result);
+            }
+            onBuilt();
+            return result;
+          }
+
+          private void buildPartial0(
+              com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores.DetectedDefect
+                  result) {
+            int from_bitField0_ = bitField0_;
+            if (((from_bitField0_ & 0x00000001) != 0)) {
+              result.type_ = type_;
+            }
+            if (((from_bitField0_ & 0x00000002) != 0)) {
+              result.confidence_ = confidence_;
+            }
+          }
+
+          @java.lang.Override
+          public Builder clone() {
+            return super.clone();
+          }
+
+          @java.lang.Override
+          public Builder setField(
+              com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+            return super.setField(field, value);
+          }
+
+          @java.lang.Override
+          public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+            return super.clearField(field);
+          }
+
+          @java.lang.Override
+          public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+            return super.clearOneof(oneof);
+          }
+
+          @java.lang.Override
+          public Builder setRepeatedField(
+              com.google.protobuf.Descriptors.FieldDescriptor field,
+              int index,
+              java.lang.Object value) {
+            return super.setRepeatedField(field, index, value);
+          }
+
+          @java.lang.Override
+          public Builder addRepeatedField(
+              com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+            return super.addRepeatedField(field, value);
+          }
+
+          @java.lang.Override
+          public Builder mergeFrom(com.google.protobuf.Message other) {
+            if (other
+                instanceof
+                com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores
+                    .DetectedDefect) {
+              return mergeFrom(
+                  (com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores
+                          .DetectedDefect)
+                      other);
+            } else {
+              super.mergeFrom(other);
+              return this;
+            }
+          }
+
+          public Builder mergeFrom(
+              com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores.DetectedDefect
+                  other) {
+            if (other
+                == com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores
+                    .DetectedDefect.getDefaultInstance()) return this;
+            if (!other.getType().isEmpty()) {
+              type_ = other.type_;
+              bitField0_ |= 0x00000001;
+              onChanged();
+            }
+            if (other.getConfidence() != 0F) {
+              setConfidence(other.getConfidence());
+            }
+            this.mergeUnknownFields(other.getUnknownFields());
+            onChanged();
+            return this;
+          }
+
+          @java.lang.Override
+          public final boolean isInitialized() {
+            return true;
+          }
+
+          @java.lang.Override
+          public Builder mergeFrom(
+              com.google.protobuf.CodedInputStream input,
+              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+              throws java.io.IOException {
+            if (extensionRegistry == null) {
+              throw new java.lang.NullPointerException();
+            }
+            try {
+              boolean done = false;
+              while (!done) {
+                int tag = input.readTag();
+                switch (tag) {
+                  case 0:
+                    done = true;
+                    break;
+                  case 10:
+                    {
+                      type_ = input.readStringRequireUtf8();
+                      bitField0_ |= 0x00000001;
+                      break;
+                    } // case 10
+                  case 21:
+                    {
+                      confidence_ = input.readFloat();
+                      bitField0_ |= 0x00000002;
+                      break;
+                    } // case 21
+                  default:
+                    {
+                      if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                        done = true; // was an endgroup tag
+                      }
+                      break;
+                    } // default:
+                } // switch (tag)
+              } // while (!done)
+            } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+              throw e.unwrapIOException();
+            } finally {
+              onChanged();
+            } // finally
+            return this;
+          }
+
+          private int bitField0_;
+
+          private java.lang.Object type_ = "";
+          /**
+           *
+           *
+           * 
+           * Name of the defect type. Supported values are:
+           *
+           * - `quality/defect_blurry`
+           * - `quality/defect_noisy`
+           * - `quality/defect_dark`
+           * - `quality/defect_faint`
+           * - `quality/defect_text_too_small`
+           * - `quality/defect_document_cutoff`
+           * - `quality/defect_text_cutoff`
+           * - `quality/defect_glare`
+           * 

+           *
+           * string type = 1;
+           *
+           * @return The type.
+           */
+          public java.lang.String getType() {
+            java.lang.Object ref = type_;
+            if (!(ref instanceof java.lang.String)) {
+              com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+              java.lang.String s = bs.toStringUtf8();
+              type_ = s;
+              return s;
+            } else {
+              return (java.lang.String) ref;
+            }
+          }
+          /**
+           *
+           *
+           * 
+           * Name of the defect type. Supported values are:
+           *
+           * - `quality/defect_blurry`
+           * - `quality/defect_noisy`
+           * - `quality/defect_dark`
+           * - `quality/defect_faint`
+           * - `quality/defect_text_too_small`
+           * - `quality/defect_document_cutoff`
+           * - `quality/defect_text_cutoff`
+           * - `quality/defect_glare`
+           * 

+           *
+           * string type = 1;
+           *
+           * @return The bytes for type.
+           */
+          public com.google.protobuf.ByteString getTypeBytes() {
+            java.lang.Object ref = type_;
+            if (ref instanceof String) {
+              com.google.protobuf.ByteString b =
+                  com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+              type_ = b;
+              return b;
+            } else {
+              return (com.google.protobuf.ByteString) ref;
+            }
+          }
+          /**
+           *
+           *
+           * 
+           * Name of the defect type. Supported values are:
+           *
+           * - `quality/defect_blurry`
+           * - `quality/defect_noisy`
+           * - `quality/defect_dark`
+           * - `quality/defect_faint`
+           * - `quality/defect_text_too_small`
+           * - `quality/defect_document_cutoff`
+           * - `quality/defect_text_cutoff`
+           * - `quality/defect_glare`
+           * 

+           *
+           * string type = 1;
+           *
+           * @param value The type to set.
+           * @return This builder for chaining.
+           */
+          public Builder setType(java.lang.String value) {
+            if (value == null) {
+              throw new NullPointerException();
+            }
+            type_ = value;
+            bitField0_ |= 0x00000001;
+            onChanged();
+            return this;
+          }
+          /**
+           *
+           *
+           * 
+           * Name of the defect type. Supported values are:
+           *
+           * - `quality/defect_blurry`
+           * - `quality/defect_noisy`
+           * - `quality/defect_dark`
+           * - `quality/defect_faint`
+           * - `quality/defect_text_too_small`
+           * - `quality/defect_document_cutoff`
+           * - `quality/defect_text_cutoff`
+           * - `quality/defect_glare`
+           * 

+           *
+           * string type = 1;
+           *
+           * @return This builder for chaining.
+           */
+          public Builder clearType() {
+            type_ = getDefaultInstance().getType();
+            bitField0_ = (bitField0_ & ~0x00000001);
+            onChanged();
+            return this;
+          }
+          /**
+           *
+           *
+           * 
+           * Name of the defect type. Supported values are:
+           *
+           * - `quality/defect_blurry`
+           * - `quality/defect_noisy`
+           * - `quality/defect_dark`
+           * - `quality/defect_faint`
+           * - `quality/defect_text_too_small`
+           * - `quality/defect_document_cutoff`
+           * - `quality/defect_text_cutoff`
+           * - `quality/defect_glare`
+           * 

+           *
+           * string type = 1;
+           *
+           * @param value The bytes for type to set.
+           * @return This builder for chaining.
+           */
+          public Builder setTypeBytes(com.google.protobuf.ByteString value) {
+            if (value == null) {
+              throw new NullPointerException();
+            }
+            checkByteStringIsUtf8(value);
+            type_ = value;
+            bitField0_ |= 0x00000001;
+            onChanged();
+            return this;
+          }
+
+          private float confidence_;
+          /**
+           *
+           *
+           * 
+           * Confidence of detected defect. Range `[0, 1]` where `1` indicates
+           * strong confidence that the defect exists.
+           * 

+           *
+           * float confidence = 2;
+           *
+           * @return The confidence.
+           */
+          @java.lang.Override
+          public float getConfidence() {
+            return confidence_;
+          }
+          /**
+           *
+           *
+           * 
+           * Confidence of detected defect. Range `[0, 1]` where `1` indicates
+           * strong confidence that the defect exists.
+           * 

+           *
+           * float confidence = 2;
+           *
+           * @param value The confidence to set.
+           * @return This builder for chaining.
+           */
+          public Builder setConfidence(float value) {
+
+            confidence_ = value;
+            bitField0_ |= 0x00000002;
+            onChanged();
+            return this;
+          }
+          /**
+           *
+           *
+           * 
+           * Confidence of detected defect. Range `[0, 1]` where `1` indicates
+           * strong confidence that the defect exists.
+           * 

+           *
+           * float confidence = 2;
+           *
+           * @return This builder for chaining.
+           */
+          public Builder clearConfidence() {
+            bitField0_ = (bitField0_ & ~0x00000002);
+            confidence_ = 0F;
+            onChanged();
+            return this;
+          }
+
+          @java.lang.Override
+          public final Builder setUnknownFields(
+              final com.google.protobuf.UnknownFieldSet unknownFields) {
+            return super.setUnknownFields(unknownFields);
+          }
+
+          @java.lang.Override
+          public final Builder mergeUnknownFields(
+              final com.google.protobuf.UnknownFieldSet unknownFields) {
+            return super.mergeUnknownFields(unknownFields);
+          }
+
+          // @@protoc_insertion_point(builder_scope:google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores.DetectedDefect)
+        }
+
+        // @@protoc_insertion_point(class_scope:google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores.DetectedDefect)
+        private static final com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores
+                .DetectedDefect
+            DEFAULT_INSTANCE;
+
+        static {
+          DEFAULT_INSTANCE =
+              new com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores
+                  .DetectedDefect();
+        }
+
+        public static com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores
+                .DetectedDefect
+            getDefaultInstance() {
+          return DEFAULT_INSTANCE;
+        }
+
+        private static final com.google.protobuf.Parser PARSER =
+            new com.google.protobuf.AbstractParser() {
+              @java.lang.Override
+              public DetectedDefect parsePartialFrom(
+                  com.google.protobuf.CodedInputStream input,
+                  com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+                  throws com.google.protobuf.InvalidProtocolBufferException {
+                Builder builder = newBuilder();
+                try {
+                  builder.mergeFrom(input, extensionRegistry);
+                } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+                  throw e.setUnfinishedMessage(builder.buildPartial());
+                } catch (com.google.protobuf.UninitializedMessageException e) {
+                  throw e.asInvalidProtocolBufferException()
+                      .setUnfinishedMessage(builder.buildPartial());
+                } catch (java.io.IOException e) {
+                  throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                      .setUnfinishedMessage(builder.buildPartial());
+                }
+                return builder.buildPartial();
+              }
+            };
+
+        public static com.google.protobuf.Parser parser() {
+          return PARSER;
+        }
+
+        @java.lang.Override
+        public com.google.protobuf.Parser getParserForType() {
+          return PARSER;
+        }
+
+        @java.lang.Override
+        public com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores.DetectedDefect
+            getDefaultInstanceForType() {
+          return DEFAULT_INSTANCE;
+        }
+      }
+
+      public static final int QUALITY_SCORE_FIELD_NUMBER = 1;
+      private float qualityScore_ = 0F;
+      /**
+       *
+       *
+       * 
+       * The overall quality score. Range `[0, 1]` where `1` is perfect quality.
+       * 

+       *
+       * float quality_score = 1;
+       *
+       * @return The qualityScore.
+       */
+      @java.lang.Override
+      public float getQualityScore() {
+        return qualityScore_;
+      }
+
+      public static final int DETECTED_DEFECTS_FIELD_NUMBER = 2;
+
+      @SuppressWarnings("serial")
+      private java.util.List<
+              com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores.DetectedDefect>
+          detectedDefects_;
+      /**
+       *
+       *
+       * 
+       * A list of detected defects.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores.DetectedDefect detected_defects = 2;
+       * 
+       */
+      @java.lang.Override
+      public java.util.List<
+              com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores.DetectedDefect>
+          getDetectedDefectsList() {
+        return detectedDefects_;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of detected defects.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores.DetectedDefect detected_defects = 2;
+       * 
+       */
+      @java.lang.Override
+      public java.util.List<
+              ? extends
+                  com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores
+                      .DetectedDefectOrBuilder>
+          getDetectedDefectsOrBuilderList() {
+        return detectedDefects_;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of detected defects.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores.DetectedDefect detected_defects = 2;
+       * 
+       */
+      @java.lang.Override
+      public int getDetectedDefectsCount() {
+        return detectedDefects_.size();
+      }
+      /**
+       *
+       *
+       * 
+       * A list of detected defects.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores.DetectedDefect detected_defects = 2;
+       * 
+       */
+      @java.lang.Override
+      public com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores.DetectedDefect
+          getDetectedDefects(int index) {
+        return detectedDefects_.get(index);
+      }
+      /**
+       *
+       *
+       * 
+       * A list of detected defects.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores.DetectedDefect detected_defects = 2;
+       * 
+       */
+      @java.lang.Override
+      public com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores
+              .DetectedDefectOrBuilder
+          getDetectedDefectsOrBuilder(int index) {
+        return detectedDefects_.get(index);
+      }
+
+      private byte memoizedIsInitialized = -1;
+
+      @java.lang.Override
+      public final boolean isInitialized() {
+        byte isInitialized = memoizedIsInitialized;
+        if (isInitialized == 1) return true;
+        if (isInitialized == 0) return false;
+
+        memoizedIsInitialized = 1;
+        return true;
+      }
+
+      @java.lang.Override
+      public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+        if (java.lang.Float.floatToRawIntBits(qualityScore_) != 0) {
+          output.writeFloat(1, qualityScore_);
+        }
+        for (int i = 0; i < detectedDefects_.size(); i++) {
+          output.writeMessage(2, detectedDefects_.get(i));
+        }
+        getUnknownFields().writeTo(output);
+      }
+
+      @java.lang.Override
+      public int getSerializedSize() {
+        int size = memoizedSize;
+        if (size != -1) return size;
+
+        size = 0;
+        if (java.lang.Float.floatToRawIntBits(qualityScore_) != 0) {
+          size += com.google.protobuf.CodedOutputStream.computeFloatSize(1, qualityScore_);
+        }
+        for (int i = 0; i < detectedDefects_.size(); i++) {
+          size +=
+              com.google.protobuf.CodedOutputStream.computeMessageSize(2, detectedDefects_.get(i));
+        }
+        size += getUnknownFields().getSerializedSize();
+        memoizedSize = size;
+        return size;
+      }
+
+      @java.lang.Override
+      public boolean equals(final java.lang.Object obj) {
+        if (obj == this) {
+          return true;
+        }
+        if (!(obj
+            instanceof com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores)) {
+          return super.equals(obj);
+        }
+        com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores other =
+            (com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores) obj;
+
+        if (java.lang.Float.floatToIntBits(getQualityScore())
+            != java.lang.Float.floatToIntBits(other.getQualityScore())) return false;
+        if (!getDetectedDefectsList().equals(other.getDetectedDefectsList())) return false;
+        if (!getUnknownFields().equals(other.getUnknownFields())) return false;
+        return true;
+      }
+
+      @java.lang.Override
+      public int hashCode() {
+        if (memoizedHashCode != 0) {
+          return memoizedHashCode;
+        }
+        int hash = 41;
+        hash = (19 * hash) + getDescriptor().hashCode();
+        hash = (37 * hash) + QUALITY_SCORE_FIELD_NUMBER;
+        hash = (53 * hash) + java.lang.Float.floatToIntBits(getQualityScore());
+        if (getDetectedDefectsCount() > 0) {
+          hash = (37 * hash) + DETECTED_DEFECTS_FIELD_NUMBER;
+          hash = (53 * hash) + getDetectedDefectsList().hashCode();
+        }
+        hash = (29 * hash) + getUnknownFields().hashCode();
+        memoizedHashCode = hash;
+        return hash;
+      }
+
+      public static com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores parseFrom(
+          java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+        return PARSER.parseFrom(data);
+      }
+
+      public static com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores parseFrom(
+          java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws com.google.protobuf.InvalidProtocolBufferException {
+        return PARSER.parseFrom(data, extensionRegistry);
+      }
+
+      public static com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores parseFrom(
+          com.google.protobuf.ByteString data)
+          throws com.google.protobuf.InvalidProtocolBufferException {
+        return PARSER.parseFrom(data);
+      }
+
+      public static com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores parseFrom(
+          com.google.protobuf.ByteString data,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws com.google.protobuf.InvalidProtocolBufferException {
+        return PARSER.parseFrom(data, extensionRegistry);
+      }
+
+      public static com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores parseFrom(
+          byte[] data) throws com.google.protobuf.InvalidProtocolBufferException {
+        return PARSER.parseFrom(data);
+      }
+
+      public static com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores parseFrom(
+          byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws com.google.protobuf.InvalidProtocolBufferException {
+        return PARSER.parseFrom(data, extensionRegistry);
+      }
+
+      public static com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores parseFrom(
+          java.io.InputStream input) throws java.io.IOException {
+        return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+      }
+
+      public static com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores parseFrom(
+          java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+        return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+            PARSER, input, extensionRegistry);
+      }
+
+      public static com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores
+          parseDelimitedFrom(java.io.InputStream input) throws java.io.IOException {
+        return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+      }
+
+      public static com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores
+          parseDelimitedFrom(
+              java.io.InputStream input,
+              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+              throws java.io.IOException {
+        return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+            PARSER, input, extensionRegistry);
+      }
+
+      public static com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores parseFrom(
+          com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+        return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+      }
+
+      public static com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores parseFrom(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+        return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+            PARSER, input, extensionRegistry);
+      }
+
+      @java.lang.Override
+      public Builder newBuilderForType() {
+        return newBuilder();
+      }
+
+      public static Builder newBuilder() {
+        return DEFAULT_INSTANCE.toBuilder();
+      }
+
+      public static Builder newBuilder(
+          com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores prototype) {
+        return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+      }
+
+      @java.lang.Override
+      public Builder toBuilder() {
+        return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+      }
+
+      @java.lang.Override
+      protected Builder newBuilderForType(
+          com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+        Builder builder = new Builder(parent);
+        return builder;
+      }
+      /**
+       *
+       *
+       * 
+       * Image quality scores for the page image.
+       * 

+       *
+       * Protobuf type {@code google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores}
+       */
+      public static final class Builder
+          extends com.google.protobuf.GeneratedMessageV3.Builder
+          implements
+          // @@protoc_insertion_point(builder_implements:google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores)
+          com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScoresOrBuilder {
+        public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+          return com.google.cloud.documentai.v1beta2.DocumentProto
+              .internal_static_google_cloud_documentai_v1beta2_Document_Page_ImageQualityScores_descriptor;
+        }
+
+        @java.lang.Override
+        protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+            internalGetFieldAccessorTable() {
+          return com.google.cloud.documentai.v1beta2.DocumentProto
+              .internal_static_google_cloud_documentai_v1beta2_Document_Page_ImageQualityScores_fieldAccessorTable
+              .ensureFieldAccessorsInitialized(
+                  com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores.class,
+                  com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores.Builder
+                      .class);
+        }
+
+        // Construct using
+        // com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores.newBuilder()
+        private Builder() {}
+
+        private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+          super(parent);
+        }
+
+        @java.lang.Override
+        public Builder clear() {
+          super.clear();
+          bitField0_ = 0;
+          qualityScore_ = 0F;
+          if (detectedDefectsBuilder_ == null) {
+            detectedDefects_ = java.util.Collections.emptyList();
+          } else {
+            detectedDefects_ = null;
+            detectedDefectsBuilder_.clear();
+          }
+          bitField0_ = (bitField0_ & ~0x00000002);
+          return this;
+        }
+
+        @java.lang.Override
+        public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+          return com.google.cloud.documentai.v1beta2.DocumentProto
+              .internal_static_google_cloud_documentai_v1beta2_Document_Page_ImageQualityScores_descriptor;
+        }
+
+        @java.lang.Override
+        public com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores
+            getDefaultInstanceForType() {
+          return com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores
+              .getDefaultInstance();
+        }
+
+        @java.lang.Override
+        public com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores build() {
+          com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores result =
+              buildPartial();
+          if (!result.isInitialized()) {
+            throw newUninitializedMessageException(result);
+          }
+          return result;
+        }
+
+        @java.lang.Override
+        public com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores buildPartial() {
+          com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores result =
+              new com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores(this);
+          buildPartialRepeatedFields(result);
+          if (bitField0_ != 0) {
+            buildPartial0(result);
+          }
+          onBuilt();
+          return result;
+        }
+
+        private void buildPartialRepeatedFields(
+            com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores result) {
+          if (detectedDefectsBuilder_ == null) {
+            if (((bitField0_ & 0x00000002) != 0)) {
+              detectedDefects_ = java.util.Collections.unmodifiableList(detectedDefects_);
+              bitField0_ = (bitField0_ & ~0x00000002);
+            }
+            result.detectedDefects_ = detectedDefects_;
+          } else {
+            result.detectedDefects_ = detectedDefectsBuilder_.build();
+          }
+        }
+
+        private void buildPartial0(
+            com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores result) {
+          int from_bitField0_ = bitField0_;
+          if (((from_bitField0_ & 0x00000001) != 0)) {
+            result.qualityScore_ = qualityScore_;
+          }
+        }
+
+        @java.lang.Override
+        public Builder clone() {
+          return super.clone();
+        }
+
+        @java.lang.Override
+        public Builder setField(
+            com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+          return super.setField(field, value);
+        }
+
+        @java.lang.Override
+        public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+          return super.clearField(field);
+        }
+
+        @java.lang.Override
+        public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+          return super.clearOneof(oneof);
+        }
+
+        @java.lang.Override
+        public Builder setRepeatedField(
+            com.google.protobuf.Descriptors.FieldDescriptor field,
+            int index,
+            java.lang.Object value) {
+          return super.setRepeatedField(field, index, value);
+        }
+
+        @java.lang.Override
+        public Builder addRepeatedField(
+            com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+          return super.addRepeatedField(field, value);
+        }
+
+        @java.lang.Override
+        public Builder mergeFrom(com.google.protobuf.Message other) {
+          if (other
+              instanceof com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores) {
+            return mergeFrom(
+                (com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores) other);
+          } else {
+            super.mergeFrom(other);
+            return this;
+          }
+        }
+
+        public Builder mergeFrom(
+            com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores other) {
+          if (other
+              == com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores
+                  .getDefaultInstance()) return this;
+          if (other.getQualityScore() != 0F) {
+            setQualityScore(other.getQualityScore());
+          }
+          if (detectedDefectsBuilder_ == null) {
+            if (!other.detectedDefects_.isEmpty()) {
+              if (detectedDefects_.isEmpty()) {
+                detectedDefects_ = other.detectedDefects_;
+                bitField0_ = (bitField0_ & ~0x00000002);
+              } else {
+                ensureDetectedDefectsIsMutable();
+                detectedDefects_.addAll(other.detectedDefects_);
+              }
+              onChanged();
+            }
+          } else {
+            if (!other.detectedDefects_.isEmpty()) {
+              if (detectedDefectsBuilder_.isEmpty()) {
+                detectedDefectsBuilder_.dispose();
+                detectedDefectsBuilder_ = null;
+                detectedDefects_ = other.detectedDefects_;
+                bitField0_ = (bitField0_ & ~0x00000002);
+                detectedDefectsBuilder_ =
+                    com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders
+                        ? getDetectedDefectsFieldBuilder()
+                        : null;
+              } else {
+                detectedDefectsBuilder_.addAllMessages(other.detectedDefects_);
+              }
+            }
+          }
+          this.mergeUnknownFields(other.getUnknownFields());
+          onChanged();
+          return this;
+        }
+
+        @java.lang.Override
+        public final boolean isInitialized() {
+          return true;
+        }
+
+        @java.lang.Override
+        public Builder mergeFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws java.io.IOException {
+          if (extensionRegistry == null) {
+            throw new java.lang.NullPointerException();
+          }
+          try {
+            boolean done = false;
+            while (!done) {
+              int tag = input.readTag();
+              switch (tag) {
+                case 0:
+                  done = true;
+                  break;
+                case 13:
+                  {
+                    qualityScore_ = input.readFloat();
+                    bitField0_ |= 0x00000001;
+                    break;
+                  } // case 13
+                case 18:
+                  {
+                    com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores
+                            .DetectedDefect
+                        m =
+                            input.readMessage(
+                                com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores
+                                    .DetectedDefect.parser(),
+                                extensionRegistry);
+                    if (detectedDefectsBuilder_ == null) {
+                      ensureDetectedDefectsIsMutable();
+                      detectedDefects_.add(m);
+                    } else {
+                      detectedDefectsBuilder_.addMessage(m);
+                    }
+                    break;
+                  } // case 18
+                default:
+                  {
+                    if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                      done = true; // was an endgroup tag
+                    }
+                    break;
+                  } // default:
+              } // switch (tag)
+            } // while (!done)
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.unwrapIOException();
+          } finally {
+            onChanged();
+          } // finally
+          return this;
+        }
+
+        private int bitField0_;
+
+        private float qualityScore_;
+        /**
+         *
+         *
+         * 
+         * The overall quality score. Range `[0, 1]` where `1` is perfect quality.
+         * 

+         *
+         * float quality_score = 1;
+         *
+         * @return The qualityScore.
+         */
+        @java.lang.Override
+        public float getQualityScore() {
+          return qualityScore_;
+        }
+        /**
+         *
+         *
+         * 
+         * The overall quality score. Range `[0, 1]` where `1` is perfect quality.
+         * 

+         *
+         * float quality_score = 1;
+         *
+         * @param value The qualityScore to set.
+         * @return This builder for chaining.
+         */
+        public Builder setQualityScore(float value) {
+
+          qualityScore_ = value;
+          bitField0_ |= 0x00000001;
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * The overall quality score. Range `[0, 1]` where `1` is perfect quality.
+         * 

+         *
+         * float quality_score = 1;
+         *
+         * @return This builder for chaining.
+         */
+        public Builder clearQualityScore() {
+          bitField0_ = (bitField0_ & ~0x00000001);
+          qualityScore_ = 0F;
+          onChanged();
+          return this;
+        }
+
+        private java.util.List<
+                com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores.DetectedDefect>
+            detectedDefects_ = java.util.Collections.emptyList();
+
+        private void ensureDetectedDefectsIsMutable() {
+          if (!((bitField0_ & 0x00000002) != 0)) {
+            detectedDefects_ =
+                new java.util.ArrayList<
+                    com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores
+                        .DetectedDefect>(detectedDefects_);
+            bitField0_ |= 0x00000002;
+          }
+        }
+
+        private com.google.protobuf.RepeatedFieldBuilderV3<
+                com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores.DetectedDefect,
+                com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores.DetectedDefect
+                    .Builder,
+                com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores
+                    .DetectedDefectOrBuilder>
+            detectedDefectsBuilder_;
+
+        /**
+         *
+         *
+         * 
+         * A list of detected defects.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores.DetectedDefect detected_defects = 2;
+         * 
+         */
+        public java.util.List<
+                com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores.DetectedDefect>
+            getDetectedDefectsList() {
+          if (detectedDefectsBuilder_ == null) {
+            return java.util.Collections.unmodifiableList(detectedDefects_);
+          } else {
+            return detectedDefectsBuilder_.getMessageList();
+          }
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected defects.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores.DetectedDefect detected_defects = 2;
+         * 
+         */
+        public int getDetectedDefectsCount() {
+          if (detectedDefectsBuilder_ == null) {
+            return detectedDefects_.size();
+          } else {
+            return detectedDefectsBuilder_.getCount();
+          }
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected defects.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores.DetectedDefect detected_defects = 2;
+         * 
+         */
+        public com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores.DetectedDefect
+            getDetectedDefects(int index) {
+          if (detectedDefectsBuilder_ == null) {
+            return detectedDefects_.get(index);
+          } else {
+            return detectedDefectsBuilder_.getMessage(index);
+          }
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected defects.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores.DetectedDefect detected_defects = 2;
+         * 
+         */
+        public Builder setDetectedDefects(
+            int index,
+            com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores.DetectedDefect
+                value) {
+          if (detectedDefectsBuilder_ == null) {
+            if (value == null) {
+              throw new NullPointerException();
+            }
+            ensureDetectedDefectsIsMutable();
+            detectedDefects_.set(index, value);
+            onChanged();
+          } else {
+            detectedDefectsBuilder_.setMessage(index, value);
+          }
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected defects.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores.DetectedDefect detected_defects = 2;
+         * 
+         */
+        public Builder setDetectedDefects(
+            int index,
+            com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores.DetectedDefect
+                    .Builder
+                builderForValue) {
+          if (detectedDefectsBuilder_ == null) {
+            ensureDetectedDefectsIsMutable();
+            detectedDefects_.set(index, builderForValue.build());
+            onChanged();
+          } else {
+            detectedDefectsBuilder_.setMessage(index, builderForValue.build());
+          }
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected defects.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores.DetectedDefect detected_defects = 2;
+         * 
+         */
+        public Builder addDetectedDefects(
+            com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores.DetectedDefect
+                value) {
+          if (detectedDefectsBuilder_ == null) {
+            if (value == null) {
+              throw new NullPointerException();
+            }
+            ensureDetectedDefectsIsMutable();
+            detectedDefects_.add(value);
+            onChanged();
+          } else {
+            detectedDefectsBuilder_.addMessage(value);
+          }
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected defects.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores.DetectedDefect detected_defects = 2;
+         * 
+         */
+        public Builder addDetectedDefects(
+            int index,
+            com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores.DetectedDefect
+                value) {
+          if (detectedDefectsBuilder_ == null) {
+            if (value == null) {
+              throw new NullPointerException();
+            }
+            ensureDetectedDefectsIsMutable();
+            detectedDefects_.add(index, value);
+            onChanged();
+          } else {
+            detectedDefectsBuilder_.addMessage(index, value);
+          }
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected defects.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores.DetectedDefect detected_defects = 2;
+         * 
+         */
+        public Builder addDetectedDefects(
+            com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores.DetectedDefect
+                    .Builder
+                builderForValue) {
+          if (detectedDefectsBuilder_ == null) {
+            ensureDetectedDefectsIsMutable();
+            detectedDefects_.add(builderForValue.build());
+            onChanged();
+          } else {
+            detectedDefectsBuilder_.addMessage(builderForValue.build());
+          }
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected defects.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores.DetectedDefect detected_defects = 2;
+         * 
+         */
+        public Builder addDetectedDefects(
+            int index,
+            com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores.DetectedDefect
+                    .Builder
+                builderForValue) {
+          if (detectedDefectsBuilder_ == null) {
+            ensureDetectedDefectsIsMutable();
+            detectedDefects_.add(index, builderForValue.build());
+            onChanged();
+          } else {
+            detectedDefectsBuilder_.addMessage(index, builderForValue.build());
+          }
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected defects.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores.DetectedDefect detected_defects = 2;
+         * 
+         */
+        public Builder addAllDetectedDefects(
+            java.lang.Iterable<
+                    ? extends
+                        com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores
+                            .DetectedDefect>
+                values) {
+          if (detectedDefectsBuilder_ == null) {
+            ensureDetectedDefectsIsMutable();
+            com.google.protobuf.AbstractMessageLite.Builder.addAll(values, detectedDefects_);
+            onChanged();
+          } else {
+            detectedDefectsBuilder_.addAllMessages(values);
+          }
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected defects.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores.DetectedDefect detected_defects = 2;
+         * 
+         */
+        public Builder clearDetectedDefects() {
+          if (detectedDefectsBuilder_ == null) {
+            detectedDefects_ = java.util.Collections.emptyList();
+            bitField0_ = (bitField0_ & ~0x00000002);
+            onChanged();
+          } else {
+            detectedDefectsBuilder_.clear();
+          }
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected defects.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores.DetectedDefect detected_defects = 2;
+         * 
+         */
+        public Builder removeDetectedDefects(int index) {
+          if (detectedDefectsBuilder_ == null) {
+            ensureDetectedDefectsIsMutable();
+            detectedDefects_.remove(index);
+            onChanged();
+          } else {
+            detectedDefectsBuilder_.remove(index);
+          }
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected defects.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores.DetectedDefect detected_defects = 2;
+         * 
+         */
+        public com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores.DetectedDefect
+                .Builder
+            getDetectedDefectsBuilder(int index) {
+          return getDetectedDefectsFieldBuilder().getBuilder(index);
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected defects.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores.DetectedDefect detected_defects = 2;
+         * 
+         */
+        public com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores
+                .DetectedDefectOrBuilder
+            getDetectedDefectsOrBuilder(int index) {
+          if (detectedDefectsBuilder_ == null) {
+            return detectedDefects_.get(index);
+          } else {
+            return detectedDefectsBuilder_.getMessageOrBuilder(index);
+          }
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected defects.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores.DetectedDefect detected_defects = 2;
+         * 
+         */
+        public java.util.List<
+                ? extends
+                    com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores
+                        .DetectedDefectOrBuilder>
+            getDetectedDefectsOrBuilderList() {
+          if (detectedDefectsBuilder_ != null) {
+            return detectedDefectsBuilder_.getMessageOrBuilderList();
+          } else {
+            return java.util.Collections.unmodifiableList(detectedDefects_);
+          }
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected defects.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores.DetectedDefect detected_defects = 2;
+         * 
+         */
+        public com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores.DetectedDefect
+                .Builder
+            addDetectedDefectsBuilder() {
+          return getDetectedDefectsFieldBuilder()
+              .addBuilder(
+                  com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores
+                      .DetectedDefect.getDefaultInstance());
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected defects.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores.DetectedDefect detected_defects = 2;
+         * 
+         */
+        public com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores.DetectedDefect
+                .Builder
+            addDetectedDefectsBuilder(int index) {
+          return getDetectedDefectsFieldBuilder()
+              .addBuilder(
+                  index,
+                  com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores
+                      .DetectedDefect.getDefaultInstance());
+        }
+        /**
+         *
+         *
+         * 
+         * A list of detected defects.
+         * 

+         *
+         * 
+         * repeated .google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores.DetectedDefect detected_defects = 2;
+         * 
+         */
+        public java.util.List<
+                com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores.DetectedDefect
+                    .Builder>
+            getDetectedDefectsBuilderList() {
+          return getDetectedDefectsFieldBuilder().getBuilderList();
+        }
+
+        private com.google.protobuf.RepeatedFieldBuilderV3<
+                com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores.DetectedDefect,
+                com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores.DetectedDefect
+                    .Builder,
+                com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores
+                    .DetectedDefectOrBuilder>
+            getDetectedDefectsFieldBuilder() {
+          if (detectedDefectsBuilder_ == null) {
+            detectedDefectsBuilder_ =
+                new com.google.protobuf.RepeatedFieldBuilderV3<
+                    com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores
+                        .DetectedDefect,
+                    com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores
+                        .DetectedDefect.Builder,
+                    com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores
+                        .DetectedDefectOrBuilder>(
+                    detectedDefects_,
+                    ((bitField0_ & 0x00000002) != 0),
+                    getParentForChildren(),
+                    isClean());
+            detectedDefects_ = null;
+          }
+          return detectedDefectsBuilder_;
+        }
+
+        @java.lang.Override
+        public final Builder setUnknownFields(
+            final com.google.protobuf.UnknownFieldSet unknownFields) {
+          return super.setUnknownFields(unknownFields);
+        }
+
+        @java.lang.Override
+        public final Builder mergeUnknownFields(
+            final com.google.protobuf.UnknownFieldSet unknownFields) {
+          return super.mergeUnknownFields(unknownFields);
+        }
+
+        // @@protoc_insertion_point(builder_scope:google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores)
+      }
+
+      // @@protoc_insertion_point(class_scope:google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores)
+      private static final com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores
+          DEFAULT_INSTANCE;
+
+      static {
+        DEFAULT_INSTANCE =
+            new com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores();
+      }
+
+      public static com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores
+          getDefaultInstance() {
+        return DEFAULT_INSTANCE;
+      }
+
+      private static final com.google.protobuf.Parser PARSER =
+          new com.google.protobuf.AbstractParser() {
+            @java.lang.Override
+            public ImageQualityScores parsePartialFrom(
+                com.google.protobuf.CodedInputStream input,
+                com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+                throws com.google.protobuf.InvalidProtocolBufferException {
+              Builder builder = newBuilder();
+              try {
+                builder.mergeFrom(input, extensionRegistry);
+              } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+                throw e.setUnfinishedMessage(builder.buildPartial());
+              } catch (com.google.protobuf.UninitializedMessageException e) {
+                throw e.asInvalidProtocolBufferException()
+                    .setUnfinishedMessage(builder.buildPartial());
+              } catch (java.io.IOException e) {
+                throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                    .setUnfinishedMessage(builder.buildPartial());
+              }
+              return builder.buildPartial();
+            }
+          };
+
+      public static com.google.protobuf.Parser parser() {
+        return PARSER;
+      }
+
+      @java.lang.Override
+      public com.google.protobuf.Parser getParserForType() {
+        return PARSER;
+      }
+
+      @java.lang.Override
+      public com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores
+          getDefaultInstanceForType() {
+        return DEFAULT_INSTANCE;
+      }
+    }
+
+    public static final int PAGE_NUMBER_FIELD_NUMBER = 1;
+    private int pageNumber_ = 0;
+    /**
+     *
+     *
+     * 
+     * 1-based index for current
+     * [Page][google.cloud.documentai.v1beta2.Document.Page] in a parent
+     * [Document][google.cloud.documentai.v1beta2.Document]. Useful when a page
+     * is taken out of a [Document][google.cloud.documentai.v1beta2.Document]
+     * for individual processing.
+     * 

+     *
+     * int32 page_number = 1;
+     *
+     * @return The pageNumber.
+     */
+    @java.lang.Override
+    public int getPageNumber() {
+      return pageNumber_;
+    }
+
+    public static final int IMAGE_FIELD_NUMBER = 13;
+    private com.google.cloud.documentai.v1beta2.Document.Page.Image image_;
+    /**
+     *
+     *
+     * 
+     * Rendered image for this page. This image is preprocessed to remove any
+     * skew, rotation, and distortions such that the annotation bounding boxes
+     * can be upright and axis-aligned.
+     * 

+     *
+     * .google.cloud.documentai.v1beta2.Document.Page.Image image = 13;
+     *
+     * @return Whether the image field is set.
+     */
+    @java.lang.Override
+    public boolean hasImage() {
+      return image_ != null;
+    }
+    /**
+     *
+     *
+     * 
+     * Rendered image for this page. This image is preprocessed to remove any
+     * skew, rotation, and distortions such that the annotation bounding boxes
+     * can be upright and axis-aligned.
+     * 

+     *
+     * .google.cloud.documentai.v1beta2.Document.Page.Image image = 13;
+     *
+     * @return The image.
+     */
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta2.Document.Page.Image getImage() {
+      return image_ == null
+          ? com.google.cloud.documentai.v1beta2.Document.Page.Image.getDefaultInstance()
+          : image_;
+    }
+    /**
+     *
+     *
+     * 
+     * Rendered image for this page. This image is preprocessed to remove any
+     * skew, rotation, and distortions such that the annotation bounding boxes
+     * can be upright and axis-aligned.
+     * 

+     *
+     * .google.cloud.documentai.v1beta2.Document.Page.Image image = 13;
+     */
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta2.Document.Page.ImageOrBuilder getImageOrBuilder() {
+      return image_ == null
+          ? com.google.cloud.documentai.v1beta2.Document.Page.Image.getDefaultInstance()
+          : image_;
+    }
+
+    public static final int TRANSFORMS_FIELD_NUMBER = 14;
+
+    @SuppressWarnings("serial")
+    private java.util.List transforms_;
+    /**
+     *
+     *
+     * 
+     * Transformation matrices that were applied to the original document image
+     * to produce
+     * [Page.image][google.cloud.documentai.v1beta2.Document.Page.image].
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.Page.Matrix transforms = 14;
+     */
+    @java.lang.Override
+    public java.util.List
+        getTransformsList() {
+      return transforms_;
+    }
+    /**
+     *
+     *
+     * 
+     * Transformation matrices that were applied to the original document image
+     * to produce
+     * [Page.image][google.cloud.documentai.v1beta2.Document.Page.image].
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.Page.Matrix transforms = 14;
+     */
+    @java.lang.Override
+    public java.util.List<
+            ? extends com.google.cloud.documentai.v1beta2.Document.Page.MatrixOrBuilder>
+        getTransformsOrBuilderList() {
+      return transforms_;
+    }
+    /**
+     *
+     *
+     * 
+     * Transformation matrices that were applied to the original document image
+     * to produce
+     * [Page.image][google.cloud.documentai.v1beta2.Document.Page.image].
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.Page.Matrix transforms = 14;
+     */
+    @java.lang.Override
+    public int getTransformsCount() {
+      return transforms_.size();
+    }
+    /**
+     *
+     *
+     * 
+     * Transformation matrices that were applied to the original document image
+     * to produce
+     * [Page.image][google.cloud.documentai.v1beta2.Document.Page.image].
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.Page.Matrix transforms = 14;
+     */
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta2.Document.Page.Matrix getTransforms(int index) {
+      return transforms_.get(index);
+    }
+    /**
+     *
+     *
+     * 
+     * Transformation matrices that were applied to the original document image
+     * to produce
+     * [Page.image][google.cloud.documentai.v1beta2.Document.Page.image].
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.Page.Matrix transforms = 14;
+     */
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta2.Document.Page.MatrixOrBuilder getTransformsOrBuilder(
+        int index) {
+      return transforms_.get(index);
+    }
+
+    public static final int DIMENSION_FIELD_NUMBER = 2;
+    private com.google.cloud.documentai.v1beta2.Document.Page.Dimension dimension_;
+    /**
+     *
+     *
+     * 
+     * Physical dimension of the page.
+     * 

+     *
+     * .google.cloud.documentai.v1beta2.Document.Page.Dimension dimension = 2;
+     *
+     * @return Whether the dimension field is set.
+     */
+    @java.lang.Override
+    public boolean hasDimension() {
+      return dimension_ != null;
+    }
+    /**
+     *
+     *
+     * 
+     * Physical dimension of the page.
+     * 

+     *
+     * .google.cloud.documentai.v1beta2.Document.Page.Dimension dimension = 2;
+     *
+     * @return The dimension.
+     */
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta2.Document.Page.Dimension getDimension() {
+      return dimension_ == null
+          ? com.google.cloud.documentai.v1beta2.Document.Page.Dimension.getDefaultInstance()
+          : dimension_;
+    }
+    /**
+     *
+     *
+     * 
+     * Physical dimension of the page.
+     * 

+     *
+     * .google.cloud.documentai.v1beta2.Document.Page.Dimension dimension = 2;
+     */
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta2.Document.Page.DimensionOrBuilder
+        getDimensionOrBuilder() {
+      return dimension_ == null
+          ? com.google.cloud.documentai.v1beta2.Document.Page.Dimension.getDefaultInstance()
+          : dimension_;
+    }
+
+    public static final int LAYOUT_FIELD_NUMBER = 3;
+    private com.google.cloud.documentai.v1beta2.Document.Page.Layout layout_;
+    /**
+     *
+     *
+     * 
+     * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for the
+     * page.
+     * 

+     *
+     * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 3;
+     *
+     * @return Whether the layout field is set.
+     */
+    @java.lang.Override
+    public boolean hasLayout() {
+      return layout_ != null;
+    }
+    /**
+     *
+     *
+     * 
+     * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for the
+     * page.
+     * 

+     *
+     * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 3;
+     *
+     * @return The layout.
+     */
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta2.Document.Page.Layout getLayout() {
+      return layout_ == null
+          ? com.google.cloud.documentai.v1beta2.Document.Page.Layout.getDefaultInstance()
+          : layout_;
+    }
+    /**
+     *
+     *
+     * 
+     * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for the
+     * page.
+     * 

+     *
+     * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 3;
+     */
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder getLayoutOrBuilder() {
+      return layout_ == null
+          ? com.google.cloud.documentai.v1beta2.Document.Page.Layout.getDefaultInstance()
+          : layout_;
+    }
+
+    public static final int DETECTED_LANGUAGES_FIELD_NUMBER = 4;
+
+    @SuppressWarnings("serial")
+    private java.util.List
+        detectedLanguages_;
+    /**
+     *
+     *
+     * 
+     * A list of detected languages together with confidence.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
+     * 
+     */
+    @java.lang.Override
+    public java.util.List
+        getDetectedLanguagesList() {
+      return detectedLanguages_;
+    }
+    /**
+     *
+     *
+     * 
+     * A list of detected languages together with confidence.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
+     * 
+     */
+    @java.lang.Override
+    public java.util.List<
+            ? extends com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>
+        getDetectedLanguagesOrBuilderList() {
+      return detectedLanguages_;
+    }
+    /**
+     *
+     *
+     * 
+     * A list of detected languages together with confidence.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
+     * 
+     */
+    @java.lang.Override
+    public int getDetectedLanguagesCount() {
+      return detectedLanguages_.size();
+    }
+    /**
+     *
+     *
+     * 
+     * A list of detected languages together with confidence.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
+     * 
+     */
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage getDetectedLanguages(
+        int index) {
+      return detectedLanguages_.get(index);
+    }
+    /**
+     *
+     *
+     * 
+     * A list of detected languages together with confidence.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
+     * 
+     */
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder
+        getDetectedLanguagesOrBuilder(int index) {
+      return detectedLanguages_.get(index);
+    }
+
+    public static final int BLOCKS_FIELD_NUMBER = 5;
+
+    @SuppressWarnings("serial")
+    private java.util.List blocks_;
+    /**
+     *
+     *
+     * 
+     * A list of visually detected text blocks on the page.
+     * A block has a set of lines (collected into paragraphs) that have a common
+     * line-spacing and orientation.
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.Page.Block blocks = 5;
+     */
+    @java.lang.Override
+    public java.util.List getBlocksList() {
+      return blocks_;
+    }
+    /**
+     *
+     *
+     * 
+     * A list of visually detected text blocks on the page.
+     * A block has a set of lines (collected into paragraphs) that have a common
+     * line-spacing and orientation.
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.Page.Block blocks = 5;
+     */
+    @java.lang.Override
+    public java.util.List<
+            ? extends com.google.cloud.documentai.v1beta2.Document.Page.BlockOrBuilder>
+        getBlocksOrBuilderList() {
+      return blocks_;
+    }
+    /**
+     *
+     *
+     * 
+     * A list of visually detected text blocks on the page.
+     * A block has a set of lines (collected into paragraphs) that have a common
+     * line-spacing and orientation.
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.Page.Block blocks = 5;
+     */
+    @java.lang.Override
+    public int getBlocksCount() {
+      return blocks_.size();
+    }
+    /**
+     *
+     *
+     * 
+     * A list of visually detected text blocks on the page.
+     * A block has a set of lines (collected into paragraphs) that have a common
+     * line-spacing and orientation.
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.Page.Block blocks = 5;
+     */
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta2.Document.Page.Block getBlocks(int index) {
+      return blocks_.get(index);
+    }
+    /**
+     *
+     *
+     * 
+     * A list of visually detected text blocks on the page.
+     * A block has a set of lines (collected into paragraphs) that have a common
+     * line-spacing and orientation.
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.Page.Block blocks = 5;
+     */
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta2.Document.Page.BlockOrBuilder getBlocksOrBuilder(
+        int index) {
+      return blocks_.get(index);
+    }
+
+    public static final int PARAGRAPHS_FIELD_NUMBER = 6;
+
+    @SuppressWarnings("serial")
+    private java.util.List paragraphs_;
+    /**
+     *
+     *
+     * 
+     * A list of visually detected text paragraphs on the page.
+     * A collection of lines that a human would perceive as a paragraph.
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.Page.Paragraph paragraphs = 6;
+     * 
+     */
+    @java.lang.Override
+    public java.util.List
+        getParagraphsList() {
+      return paragraphs_;
+    }
+    /**
+     *
+     *
+     * 
+     * A list of visually detected text paragraphs on the page.
+     * A collection of lines that a human would perceive as a paragraph.
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.Page.Paragraph paragraphs = 6;
+     * 
+     */
+    @java.lang.Override
+    public java.util.List<
+            ? extends com.google.cloud.documentai.v1beta2.Document.Page.ParagraphOrBuilder>
+        getParagraphsOrBuilderList() {
+      return paragraphs_;
+    }
+    /**
+     *
+     *
+     * 
+     * A list of visually detected text paragraphs on the page.
+     * A collection of lines that a human would perceive as a paragraph.
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.Page.Paragraph paragraphs = 6;
+     * 
+     */
+    @java.lang.Override
+    public int getParagraphsCount() {
+      return paragraphs_.size();
+    }
+    /**
+     *
+     *
+     * 
+     * A list of visually detected text paragraphs on the page.
+     * A collection of lines that a human would perceive as a paragraph.
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.Page.Paragraph paragraphs = 6;
+     * 
+     */
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta2.Document.Page.Paragraph getParagraphs(int index) {
+      return paragraphs_.get(index);
+    }
+    /**
+     *
+     *
+     * 
+     * A list of visually detected text paragraphs on the page.
+     * A collection of lines that a human would perceive as a paragraph.
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.Page.Paragraph paragraphs = 6;
+     * 
+     */
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta2.Document.Page.ParagraphOrBuilder
+        getParagraphsOrBuilder(int index) {
+      return paragraphs_.get(index);
+    }
+
+    public static final int LINES_FIELD_NUMBER = 7;
+
+    @SuppressWarnings("serial")
+    private java.util.List lines_;
+    /**
+     *
+     *
+     * 
+     * A list of visually detected text lines on the page.
+     * A collection of tokens that a human would perceive as a line.
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.Page.Line lines = 7;
+     */
+    @java.lang.Override
+    public java.util.List getLinesList() {
+      return lines_;
+    }
+    /**
+     *
+     *
+     * 
+     * A list of visually detected text lines on the page.
+     * A collection of tokens that a human would perceive as a line.
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.Page.Line lines = 7;
+     */
+    @java.lang.Override
+    public java.util.List
+        getLinesOrBuilderList() {
+      return lines_;
+    }
+    /**
+     *
+     *
+     * 
+     * A list of visually detected text lines on the page.
+     * A collection of tokens that a human would perceive as a line.
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.Page.Line lines = 7;
+     */
+    @java.lang.Override
+    public int getLinesCount() {
+      return lines_.size();
+    }
+    /**
+     *
+     *
+     * 
+     * A list of visually detected text lines on the page.
+     * A collection of tokens that a human would perceive as a line.
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.Page.Line lines = 7;
+     */
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta2.Document.Page.Line getLines(int index) {
+      return lines_.get(index);
+    }
+    /**
+     *
+     *
+     * 
+     * A list of visually detected text lines on the page.
+     * A collection of tokens that a human would perceive as a line.
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.Page.Line lines = 7;
+     */
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta2.Document.Page.LineOrBuilder getLinesOrBuilder(
+        int index) {
+      return lines_.get(index);
+    }
+
+    public static final int TOKENS_FIELD_NUMBER = 8;
+
+    @SuppressWarnings("serial")
+    private java.util.List tokens_;
+    /**
+     *
+     *
+     * 
+     * A list of visually detected tokens on the page.
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.Page.Token tokens = 8;
+     */
+    @java.lang.Override
+    public java.util.List getTokensList() {
+      return tokens_;
+    }
+    /**
+     *
+     *
+     * 
+     * A list of visually detected tokens on the page.
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.Page.Token tokens = 8;
+     */
+    @java.lang.Override
+    public java.util.List<
+            ? extends com.google.cloud.documentai.v1beta2.Document.Page.TokenOrBuilder>
+        getTokensOrBuilderList() {
+      return tokens_;
+    }
+    /**
+     *
+     *
+     * 
+     * A list of visually detected tokens on the page.
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.Page.Token tokens = 8;
+     */
+    @java.lang.Override
+    public int getTokensCount() {
+      return tokens_.size();
+    }
+    /**
+     *
+     *
+     * 
+     * A list of visually detected tokens on the page.
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.Page.Token tokens = 8;
+     */
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta2.Document.Page.Token getTokens(int index) {
+      return tokens_.get(index);
+    }
+    /**
+     *
+     *
+     * 
+     * A list of visually detected tokens on the page.
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.Page.Token tokens = 8;
+     */
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta2.Document.Page.TokenOrBuilder getTokensOrBuilder(
+        int index) {
+      return tokens_.get(index);
+    }
+
+    public static final int VISUAL_ELEMENTS_FIELD_NUMBER = 9;
+
+    @SuppressWarnings("serial")
+    private java.util.List
+        visualElements_;
+    /**
+     *
+     *
+     * 
+     * A list of detected non-text visual elements e.g. checkbox,
+     * signature etc. on the page.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta2.Document.Page.VisualElement visual_elements = 9;
+     * 
+     */
+    @java.lang.Override
+    public java.util.List
+        getVisualElementsList() {
+      return visualElements_;
+    }
+    /**
+     *
+     *
+     * 
+     * A list of detected non-text visual elements e.g. checkbox,
+     * signature etc. on the page.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta2.Document.Page.VisualElement visual_elements = 9;
+     * 
+     */
+    @java.lang.Override
+    public java.util.List<
+            ? extends com.google.cloud.documentai.v1beta2.Document.Page.VisualElementOrBuilder>
+        getVisualElementsOrBuilderList() {
+      return visualElements_;
+    }
+    /**
+     *
+     *
+     * 
+     * A list of detected non-text visual elements e.g. checkbox,
+     * signature etc. on the page.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta2.Document.Page.VisualElement visual_elements = 9;
+     * 
+     */
+    @java.lang.Override
+    public int getVisualElementsCount() {
+      return visualElements_.size();
+    }
+    /**
+     *
+     *
+     * 
+     * A list of detected non-text visual elements e.g. checkbox,
+     * signature etc. on the page.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta2.Document.Page.VisualElement visual_elements = 9;
+     * 
+     */
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta2.Document.Page.VisualElement getVisualElements(
+        int index) {
+      return visualElements_.get(index);
+    }
+    /**
+     *
+     *
+     * 
+     * A list of detected non-text visual elements e.g. checkbox,
+     * signature etc. on the page.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta2.Document.Page.VisualElement visual_elements = 9;
+     * 
+     */
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta2.Document.Page.VisualElementOrBuilder
+        getVisualElementsOrBuilder(int index) {
+      return visualElements_.get(index);
+    }
+
+    public static final int TABLES_FIELD_NUMBER = 10;
+
+    @SuppressWarnings("serial")
+    private java.util.List tables_;
+    /**
+     *
+     *
+     * 
+     * A list of visually detected tables on the page.
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.Page.Table tables = 10;
+     */
+    @java.lang.Override
+    public java.util.List getTablesList() {
+      return tables_;
+    }
+    /**
+     *
+     *
+     * 
+     * A list of visually detected tables on the page.
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.Page.Table tables = 10;
+     */
+    @java.lang.Override
+    public java.util.List<
+            ? extends com.google.cloud.documentai.v1beta2.Document.Page.TableOrBuilder>
+        getTablesOrBuilderList() {
+      return tables_;
+    }
+    /**
+     *
+     *
+     * 
+     * A list of visually detected tables on the page.
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.Page.Table tables = 10;
+     */
+    @java.lang.Override
+    public int getTablesCount() {
+      return tables_.size();
+    }
+    /**
+     *
+     *
+     * 
+     * A list of visually detected tables on the page.
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.Page.Table tables = 10;
+     */
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta2.Document.Page.Table getTables(int index) {
+      return tables_.get(index);
+    }
+    /**
+     *
+     *
+     * 
+     * A list of visually detected tables on the page.
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.Page.Table tables = 10;
+     */
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta2.Document.Page.TableOrBuilder getTablesOrBuilder(
+        int index) {
+      return tables_.get(index);
+    }
+
+    public static final int FORM_FIELDS_FIELD_NUMBER = 11;
+
+    @SuppressWarnings("serial")
+    private java.util.List formFields_;
+    /**
+     *
+     *
+     * 
+     * A list of visually detected form fields on the page.
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.Page.FormField form_fields = 11;
+     * 
+     */
+    @java.lang.Override
+    public java.util.List
+        getFormFieldsList() {
+      return formFields_;
+    }
+    /**
+     *
+     *
+     * 
+     * A list of visually detected form fields on the page.
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.Page.FormField form_fields = 11;
+     * 
+     */
+    @java.lang.Override
+    public java.util.List<
+            ? extends com.google.cloud.documentai.v1beta2.Document.Page.FormFieldOrBuilder>
+        getFormFieldsOrBuilderList() {
+      return formFields_;
+    }
+    /**
+     *
+     *
+     * 
+     * A list of visually detected form fields on the page.
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.Page.FormField form_fields = 11;
+     * 
+     */
+    @java.lang.Override
+    public int getFormFieldsCount() {
+      return formFields_.size();
+    }
+    /**
+     *
+     *
+     * 
+     * A list of visually detected form fields on the page.
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.Page.FormField form_fields = 11;
+     * 
+     */
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta2.Document.Page.FormField getFormFields(int index) {
+      return formFields_.get(index);
+    }
+    /**
+     *
+     *
+     * 
+     * A list of visually detected form fields on the page.
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.Page.FormField form_fields = 11;
+     * 
+     */
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta2.Document.Page.FormFieldOrBuilder
+        getFormFieldsOrBuilder(int index) {
+      return formFields_.get(index);
+    }
+
+    public static final int SYMBOLS_FIELD_NUMBER = 12;
+
+    @SuppressWarnings("serial")
+    private java.util.List symbols_;
+    /**
+     *
+     *
+     * 
+     * A list of visually detected symbols on the page.
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.Page.Symbol symbols = 12;
+     */
+    @java.lang.Override
+    public java.util.List
+        getSymbolsList() {
+      return symbols_;
+    }
+    /**
+     *
+     *
+     * 
+     * A list of visually detected symbols on the page.
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.Page.Symbol symbols = 12;
+     */
+    @java.lang.Override
+    public java.util.List<
+            ? extends com.google.cloud.documentai.v1beta2.Document.Page.SymbolOrBuilder>
+        getSymbolsOrBuilderList() {
+      return symbols_;
+    }
+    /**
+     *
+     *
+     * 
+     * A list of visually detected symbols on the page.
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.Page.Symbol symbols = 12;
+     */
+    @java.lang.Override
+    public int getSymbolsCount() {
+      return symbols_.size();
+    }
+    /**
+     *
+     *
+     * 
+     * A list of visually detected symbols on the page.
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.Page.Symbol symbols = 12;
+     */
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta2.Document.Page.Symbol getSymbols(int index) {
+      return symbols_.get(index);
+    }
+    /**
+     *
+     *
+     * 
+     * A list of visually detected symbols on the page.
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.Page.Symbol symbols = 12;
+     */
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta2.Document.Page.SymbolOrBuilder getSymbolsOrBuilder(
+        int index) {
+      return symbols_.get(index);
+    }
+
+    public static final int DETECTED_BARCODES_FIELD_NUMBER = 15;
+
+    @SuppressWarnings("serial")
+    private java.util.List
+        detectedBarcodes_;
+    /**
+     *
+     *
+     * 
+     * A list of detected barcodes.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode detected_barcodes = 15;
+     * 
+     */
+    @java.lang.Override
+    public java.util.List
+        getDetectedBarcodesList() {
+      return detectedBarcodes_;
+    }
+    /**
+     *
+     *
+     * 
+     * A list of detected barcodes.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode detected_barcodes = 15;
+     * 
+     */
+    @java.lang.Override
+    public java.util.List<
+            ? extends com.google.cloud.documentai.v1beta2.Document.Page.DetectedBarcodeOrBuilder>
+        getDetectedBarcodesOrBuilderList() {
+      return detectedBarcodes_;
+    }
+    /**
+     *
+     *
+     * 
+     * A list of detected barcodes.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode detected_barcodes = 15;
+     * 
+     */
+    @java.lang.Override
+    public int getDetectedBarcodesCount() {
+      return detectedBarcodes_.size();
+    }
+    /**
+     *
+     *
+     * 
+     * A list of detected barcodes.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode detected_barcodes = 15;
+     * 
+     */
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode getDetectedBarcodes(
+        int index) {
+      return detectedBarcodes_.get(index);
+    }
+    /**
+     *
+     *
+     * 
+     * A list of detected barcodes.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode detected_barcodes = 15;
+     * 
+     */
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta2.Document.Page.DetectedBarcodeOrBuilder
+        getDetectedBarcodesOrBuilder(int index) {
+      return detectedBarcodes_.get(index);
+    }
+
+    public static final int IMAGE_QUALITY_SCORES_FIELD_NUMBER = 17;
+    private com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores
+        imageQualityScores_;
+    /**
+     *
+     *
+     * 
+     * Image quality scores.
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores image_quality_scores = 17;
+     * 
+     *
+     * @return Whether the imageQualityScores field is set.
+     */
+    @java.lang.Override
+    public boolean hasImageQualityScores() {
+      return imageQualityScores_ != null;
+    }
+    /**
+     *
+     *
+     * 
+     * Image quality scores.
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores image_quality_scores = 17;
+     * 
+     *
+     * @return The imageQualityScores.
+     */
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores
+        getImageQualityScores() {
+      return imageQualityScores_ == null
+          ? com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores
+              .getDefaultInstance()
+          : imageQualityScores_;
+    }
+    /**
+     *
+     *
+     * 
+     * Image quality scores.
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores image_quality_scores = 17;
+     * 
+     */
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScoresOrBuilder
+        getImageQualityScoresOrBuilder() {
+      return imageQualityScores_ == null
+          ? com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores
+              .getDefaultInstance()
+          : imageQualityScores_;
+    }
+
+    public static final int PROVENANCE_FIELD_NUMBER = 16;
+    private com.google.cloud.documentai.v1beta2.Document.Provenance provenance_;
+    /**
+     *
+     *
+     * 
+     * The history of this page.
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 16 [deprecated = true];
+     * 
+     *
+     * @deprecated google.cloud.documentai.v1beta2.Document.Page.provenance is deprecated. See
+     *     google/cloud/documentai/v1beta2/document.proto;l=577
+     * @return Whether the provenance field is set.
+     */
+    @java.lang.Override
+    @java.lang.Deprecated
+    public boolean hasProvenance() {
+      return provenance_ != null;
+    }
+    /**
+     *
+     *
+     * 
+     * The history of this page.
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 16 [deprecated = true];
+     * 
+     *
+     * @deprecated google.cloud.documentai.v1beta2.Document.Page.provenance is deprecated. See
+     *     google/cloud/documentai/v1beta2/document.proto;l=577
+     * @return The provenance.
+     */
+    @java.lang.Override
+    @java.lang.Deprecated
+    public com.google.cloud.documentai.v1beta2.Document.Provenance getProvenance() {
+      return provenance_ == null
+          ? com.google.cloud.documentai.v1beta2.Document.Provenance.getDefaultInstance()
+          : provenance_;
+    }
+    /**
+     *
+     *
+     * 
+     * The history of this page.
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 16 [deprecated = true];
+     * 
+     */
+    @java.lang.Override
+    @java.lang.Deprecated
+    public com.google.cloud.documentai.v1beta2.Document.ProvenanceOrBuilder
+        getProvenanceOrBuilder() {
+      return provenance_ == null
+          ? com.google.cloud.documentai.v1beta2.Document.Provenance.getDefaultInstance()
+          : provenance_;
+    }
+
+    private byte memoizedIsInitialized = -1;
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      byte isInitialized = memoizedIsInitialized;
+      if (isInitialized == 1) return true;
+      if (isInitialized == 0) return false;
+
+      memoizedIsInitialized = 1;
+      return true;
+    }
+
+    @java.lang.Override
+    public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+      if (pageNumber_ != 0) {
+        output.writeInt32(1, pageNumber_);
+      }
+      if (dimension_ != null) {
+        output.writeMessage(2, getDimension());
+      }
+      if (layout_ != null) {
+        output.writeMessage(3, getLayout());
+      }
+      for (int i = 0; i < detectedLanguages_.size(); i++) {
+        output.writeMessage(4, detectedLanguages_.get(i));
+      }
+      for (int i = 0; i < blocks_.size(); i++) {
+        output.writeMessage(5, blocks_.get(i));
+      }
+      for (int i = 0; i < paragraphs_.size(); i++) {
+        output.writeMessage(6, paragraphs_.get(i));
+      }
+      for (int i = 0; i < lines_.size(); i++) {
+        output.writeMessage(7, lines_.get(i));
+      }
+      for (int i = 0; i < tokens_.size(); i++) {
+        output.writeMessage(8, tokens_.get(i));
+      }
+      for (int i = 0; i < visualElements_.size(); i++) {
+        output.writeMessage(9, visualElements_.get(i));
+      }
+      for (int i = 0; i < tables_.size(); i++) {
+        output.writeMessage(10, tables_.get(i));
+      }
+      for (int i = 0; i < formFields_.size(); i++) {
+        output.writeMessage(11, formFields_.get(i));
+      }
+      for (int i = 0; i < symbols_.size(); i++) {
+        output.writeMessage(12, symbols_.get(i));
+      }
+      if (image_ != null) {
+        output.writeMessage(13, getImage());
+      }
+      for (int i = 0; i < transforms_.size(); i++) {
+        output.writeMessage(14, transforms_.get(i));
+      }
+      for (int i = 0; i < detectedBarcodes_.size(); i++) {
+        output.writeMessage(15, detectedBarcodes_.get(i));
+      }
+      if (provenance_ != null) {
+        output.writeMessage(16, getProvenance());
+      }
+      if (imageQualityScores_ != null) {
+        output.writeMessage(17, getImageQualityScores());
+      }
+      getUnknownFields().writeTo(output);
+    }
+
+    @java.lang.Override
+    public int getSerializedSize() {
+      int size = memoizedSize;
+      if (size != -1) return size;
+
+      size = 0;
+      if (pageNumber_ != 0) {
+        size += com.google.protobuf.CodedOutputStream.computeInt32Size(1, pageNumber_);
+      }
+      if (dimension_ != null) {
+        size += com.google.protobuf.CodedOutputStream.computeMessageSize(2, getDimension());
+      }
+      if (layout_ != null) {
+        size += com.google.protobuf.CodedOutputStream.computeMessageSize(3, getLayout());
+      }
+      for (int i = 0; i < detectedLanguages_.size(); i++) {
+        size +=
+            com.google.protobuf.CodedOutputStream.computeMessageSize(4, detectedLanguages_.get(i));
+      }
+      for (int i = 0; i < blocks_.size(); i++) {
+        size += com.google.protobuf.CodedOutputStream.computeMessageSize(5, blocks_.get(i));
+      }
+      for (int i = 0; i < paragraphs_.size(); i++) {
+        size += com.google.protobuf.CodedOutputStream.computeMessageSize(6, paragraphs_.get(i));
+      }
+      for (int i = 0; i < lines_.size(); i++) {
+        size += com.google.protobuf.CodedOutputStream.computeMessageSize(7, lines_.get(i));
+      }
+      for (int i = 0; i < tokens_.size(); i++) {
+        size += com.google.protobuf.CodedOutputStream.computeMessageSize(8, tokens_.get(i));
+      }
+      for (int i = 0; i < visualElements_.size(); i++) {
+        size += com.google.protobuf.CodedOutputStream.computeMessageSize(9, visualElements_.get(i));
+      }
+      for (int i = 0; i < tables_.size(); i++) {
+        size += com.google.protobuf.CodedOutputStream.computeMessageSize(10, tables_.get(i));
+      }
+      for (int i = 0; i < formFields_.size(); i++) {
+        size += com.google.protobuf.CodedOutputStream.computeMessageSize(11, formFields_.get(i));
+      }
+      for (int i = 0; i < symbols_.size(); i++) {
+        size += com.google.protobuf.CodedOutputStream.computeMessageSize(12, symbols_.get(i));
+      }
+      if (image_ != null) {
+        size += com.google.protobuf.CodedOutputStream.computeMessageSize(13, getImage());
+      }
+      for (int i = 0; i < transforms_.size(); i++) {
+        size += com.google.protobuf.CodedOutputStream.computeMessageSize(14, transforms_.get(i));
+      }
+      for (int i = 0; i < detectedBarcodes_.size(); i++) {
+        size +=
+            com.google.protobuf.CodedOutputStream.computeMessageSize(15, detectedBarcodes_.get(i));
+      }
+      if (provenance_ != null) {
+        size += com.google.protobuf.CodedOutputStream.computeMessageSize(16, getProvenance());
+      }
+      if (imageQualityScores_ != null) {
+        size +=
+            com.google.protobuf.CodedOutputStream.computeMessageSize(17, getImageQualityScores());
+      }
+      size += getUnknownFields().getSerializedSize();
+      memoizedSize = size;
+      return size;
+    }
+
+    @java.lang.Override
+    public boolean equals(final java.lang.Object obj) {
+      if (obj == this) {
+        return true;
+      }
+      if (!(obj instanceof com.google.cloud.documentai.v1beta2.Document.Page)) {
+        return super.equals(obj);
+      }
+      com.google.cloud.documentai.v1beta2.Document.Page other =
+          (com.google.cloud.documentai.v1beta2.Document.Page) obj;
+
+      if (getPageNumber() != other.getPageNumber()) return false;
+      if (hasImage() != other.hasImage()) return false;
+      if (hasImage()) {
+        if (!getImage().equals(other.getImage())) return false;
+      }
+      if (!getTransformsList().equals(other.getTransformsList())) return false;
+      if (hasDimension() != other.hasDimension()) return false;
+      if (hasDimension()) {
+        if (!getDimension().equals(other.getDimension())) return false;
+      }
+      if (hasLayout() != other.hasLayout()) return false;
+      if (hasLayout()) {
+        if (!getLayout().equals(other.getLayout())) return false;
+      }
+      if (!getDetectedLanguagesList().equals(other.getDetectedLanguagesList())) return false;
+      if (!getBlocksList().equals(other.getBlocksList())) return false;
+      if (!getParagraphsList().equals(other.getParagraphsList())) return false;
+      if (!getLinesList().equals(other.getLinesList())) return false;
+      if (!getTokensList().equals(other.getTokensList())) return false;
+      if (!getVisualElementsList().equals(other.getVisualElementsList())) return false;
+      if (!getTablesList().equals(other.getTablesList())) return false;
+      if (!getFormFieldsList().equals(other.getFormFieldsList())) return false;
+      if (!getSymbolsList().equals(other.getSymbolsList())) return false;
+      if (!getDetectedBarcodesList().equals(other.getDetectedBarcodesList())) return false;
+      if (hasImageQualityScores() != other.hasImageQualityScores()) return false;
+      if (hasImageQualityScores()) {
+        if (!getImageQualityScores().equals(other.getImageQualityScores())) return false;
+      }
+      if (hasProvenance() != other.hasProvenance()) return false;
+      if (hasProvenance()) {
+        if (!getProvenance().equals(other.getProvenance())) return false;
+      }
+      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
+      return true;
+    }
+
+    @java.lang.Override
+    public int hashCode() {
+      if (memoizedHashCode != 0) {
+        return memoizedHashCode;
+      }
+      int hash = 41;
+      hash = (19 * hash) + getDescriptor().hashCode();
+      hash = (37 * hash) + PAGE_NUMBER_FIELD_NUMBER;
+      hash = (53 * hash) + getPageNumber();
+      if (hasImage()) {
+        hash = (37 * hash) + IMAGE_FIELD_NUMBER;
+        hash = (53 * hash) + getImage().hashCode();
+      }
+      if (getTransformsCount() > 0) {
+        hash = (37 * hash) + TRANSFORMS_FIELD_NUMBER;
+        hash = (53 * hash) + getTransformsList().hashCode();
+      }
+      if (hasDimension()) {
+        hash = (37 * hash) + DIMENSION_FIELD_NUMBER;
+        hash = (53 * hash) + getDimension().hashCode();
+      }
+      if (hasLayout()) {
+        hash = (37 * hash) + LAYOUT_FIELD_NUMBER;
+        hash = (53 * hash) + getLayout().hashCode();
+      }
+      if (getDetectedLanguagesCount() > 0) {
+        hash = (37 * hash) + DETECTED_LANGUAGES_FIELD_NUMBER;
+        hash = (53 * hash) + getDetectedLanguagesList().hashCode();
+      }
+      if (getBlocksCount() > 0) {
+        hash = (37 * hash) + BLOCKS_FIELD_NUMBER;
+        hash = (53 * hash) + getBlocksList().hashCode();
+      }
+      if (getParagraphsCount() > 0) {
+        hash = (37 * hash) + PARAGRAPHS_FIELD_NUMBER;
+        hash = (53 * hash) + getParagraphsList().hashCode();
+      }
+      if (getLinesCount() > 0) {
+        hash = (37 * hash) + LINES_FIELD_NUMBER;
+        hash = (53 * hash) + getLinesList().hashCode();
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+                      ? getTokensFieldBuilder()
+                      : null;
+            } else {
+              tokensBuilder_.addAllMessages(other.tokens_);
+            }
+          }
+        }
+        if (visualElementsBuilder_ == null) {
+          if (!other.visualElements_.isEmpty()) {
+            if (visualElements_.isEmpty()) {
+              visualElements_ = other.visualElements_;
+              bitField0_ = (bitField0_ & ~0x00000400);
+            } else {
+              ensureVisualElementsIsMutable();
+              visualElements_.addAll(other.visualElements_);
+            }
+            onChanged();
+          }
+        } else {
+          if (!other.visualElements_.isEmpty()) {
+            if (visualElementsBuilder_.isEmpty()) {
+              visualElementsBuilder_.dispose();
+              visualElementsBuilder_ = null;
+              visualElements_ = other.visualElements_;
+              bitField0_ = (bitField0_ & ~0x00000400);
+              visualElementsBuilder_ =
+                  com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders
+                      ? getVisualElementsFieldBuilder()
+                      : null;
+            } else {
+              visualElementsBuilder_.addAllMessages(other.visualElements_);
+            }
+          }
+        }
+        if (tablesBuilder_ == null) {
+          if (!other.tables_.isEmpty()) {
+            if (tables_.isEmpty()) {
+              tables_ = other.tables_;
+              bitField0_ = (bitField0_ & ~0x00000800);
+            } else {
+              ensureTablesIsMutable();
+              tables_.addAll(other.tables_);
+            }
+            onChanged();
+          }
+        } else {
+          if (!other.tables_.isEmpty()) {
+            if (tablesBuilder_.isEmpty()) {
+              tablesBuilder_.dispose();
+              tablesBuilder_ = null;
+              tables_ = other.tables_;
+              bitField0_ = (bitField0_ & ~0x00000800);
+              tablesBuilder_ =
+                  com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders
+                      ? getTablesFieldBuilder()
+                      : null;
+            } else {
+              tablesBuilder_.addAllMessages(other.tables_);
+            }
+          }
+        }
+        if (formFieldsBuilder_ == null) {
+          if (!other.formFields_.isEmpty()) {
+            if (formFields_.isEmpty()) {
+              formFields_ = other.formFields_;
+              bitField0_ = (bitField0_ & ~0x00001000);
+            } else {
+              ensureFormFieldsIsMutable();
+              formFields_.addAll(other.formFields_);
+            }
+            onChanged();
+          }
+        } else {
+          if (!other.formFields_.isEmpty()) {
+            if (formFieldsBuilder_.isEmpty()) {
+              formFieldsBuilder_.dispose();
+              formFieldsBuilder_ = null;
+              formFields_ = other.formFields_;
+              bitField0_ = (bitField0_ & ~0x00001000);
+              formFieldsBuilder_ =
+                  com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders
+                      ? getFormFieldsFieldBuilder()
+                      : null;
+            } else {
+              formFieldsBuilder_.addAllMessages(other.formFields_);
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+              bitField0_ = (bitField0_ & ~0x00002000);
+            } else {
+              ensureSymbolsIsMutable();
+              symbols_.addAll(other.symbols_);
+            }
+            onChanged();
+          }
+        } else {
+          if (!other.symbols_.isEmpty()) {
+            if (symbolsBuilder_.isEmpty()) {
+              symbolsBuilder_.dispose();
+              symbolsBuilder_ = null;
+              symbols_ = other.symbols_;
+              bitField0_ = (bitField0_ & ~0x00002000);
+              symbolsBuilder_ =
+                  com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders
+                      ? getSymbolsFieldBuilder()
+                      : null;
+            } else {
+              symbolsBuilder_.addAllMessages(other.symbols_);
+            }
+          }
+        }
+        if (detectedBarcodesBuilder_ == null) {
+          if (!other.detectedBarcodes_.isEmpty()) {
+            if (detectedBarcodes_.isEmpty()) {
+              detectedBarcodes_ = other.detectedBarcodes_;
+              bitField0_ = (bitField0_ & ~0x00004000);
+            } else {
+              ensureDetectedBarcodesIsMutable();
+              detectedBarcodes_.addAll(other.detectedBarcodes_);
+            }
+            onChanged();
+          }
+        } else {
+          if (!other.detectedBarcodes_.isEmpty()) {
+            if (detectedBarcodesBuilder_.isEmpty()) {
+              detectedBarcodesBuilder_.dispose();
+              detectedBarcodesBuilder_ = null;
+              detectedBarcodes_ = other.detectedBarcodes_;
+              bitField0_ = (bitField0_ & ~0x00004000);
+              detectedBarcodesBuilder_ =
+                  com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders
+                      ? getDetectedBarcodesFieldBuilder()
+                      : null;
+            } else {
+              detectedBarcodesBuilder_.addAllMessages(other.detectedBarcodes_);
+            }
+          }
+        }
+        if (other.hasImageQualityScores()) {
+          mergeImageQualityScores(other.getImageQualityScores());
+        }
+        if (other.hasProvenance()) {
+          mergeProvenance(other.getProvenance());
+        }
+        this.mergeUnknownFields(other.getUnknownFields());
+        onChanged();
+        return this;
+      }
+
+      @java.lang.Override
+      public final boolean isInitialized() {
+        return true;
+      }
+
+      @java.lang.Override
+      public Builder mergeFrom(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+        if (extensionRegistry == null) {
+          throw new java.lang.NullPointerException();
+        }
+        try {
+          boolean done = false;
+          while (!done) {
+            int tag = input.readTag();
+            switch (tag) {
+              case 0:
+                done = true;
+                break;
+              case 8:
+                {
+                  pageNumber_ = input.readInt32();
+                  bitField0_ |= 0x00000001;
+                  break;
+                } // case 8
+              case 18:
+                {
+                  input.readMessage(getDimensionFieldBuilder().getBuilder(), extensionRegistry);
+                  bitField0_ |= 0x00000008;
+                  break;
+                } // case 18
+              case 26:
+                {
+                  input.readMessage(getLayoutFieldBuilder().getBuilder(), extensionRegistry);
+                  bitField0_ |= 0x00000010;
+                  break;
+                } // case 26
+              case 34:
+                {
+                  com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage m =
+                      input.readMessage(
+                          com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage
+                              .parser(),
+                          extensionRegistry);
+                  if (detectedLanguagesBuilder_ == null) {
+                    ensureDetectedLanguagesIsMutable();
+                    detectedLanguages_.add(m);
+                  } else {
+                    detectedLanguagesBuilder_.addMessage(m);
+                  }
+                  break;
+                } // case 34
+              case 42:
+                {
+                  com.google.cloud.documentai.v1beta2.Document.Page.Block m =
+                      input.readMessage(
+                          com.google.cloud.documentai.v1beta2.Document.Page.Block.parser(),
+                          extensionRegistry);
+                  if (blocksBuilder_ == null) {
+                    ensureBlocksIsMutable();
+                    blocks_.add(m);
+                  } else {
+                    blocksBuilder_.addMessage(m);
+                  }
+                  break;
+                } // case 42
+              case 50:
+                {
+                  com.google.cloud.documentai.v1beta2.Document.Page.Paragraph m =
+                      input.readMessage(
+                          com.google.cloud.documentai.v1beta2.Document.Page.Paragraph.parser(),
+                          extensionRegistry);
+                  if (paragraphsBuilder_ == null) {
+                    ensureParagraphsIsMutable();
+                    paragraphs_.add(m);
+                  } else {
+                    paragraphsBuilder_.addMessage(m);
+                  }
+                  break;
+                } // case 50
+              case 58:
+                {
+                  com.google.cloud.documentai.v1beta2.Document.Page.Line m =
+                      input.readMessage(
+                          com.google.cloud.documentai.v1beta2.Document.Page.Line.parser(),
+                          extensionRegistry);
+                  if (linesBuilder_ == null) {
+                    ensureLinesIsMutable();
+                    lines_.add(m);
+                  } else {
+                    linesBuilder_.addMessage(m);
+                  }
+                  break;
+                } // case 58
+              case 66:
+                {
+                  com.google.cloud.documentai.v1beta2.Document.Page.Token m =
+                      input.readMessage(
+                          com.google.cloud.documentai.v1beta2.Document.Page.Token.parser(),
+                          extensionRegistry);
+                  if (tokensBuilder_ == null) {
+                    ensureTokensIsMutable();
+                    tokens_.add(m);
+                  } else {
+                    tokensBuilder_.addMessage(m);
+                  }
+                  break;
+                } // case 66
+              case 74:
+                {
+                  com.google.cloud.documentai.v1beta2.Document.Page.VisualElement m =
+                      input.readMessage(
+                          com.google.cloud.documentai.v1beta2.Document.Page.VisualElement.parser(),
+                          extensionRegistry);
+                  if (visualElementsBuilder_ == null) {
+                    ensureVisualElementsIsMutable();
+                    visualElements_.add(m);
+                  } else {
+                    visualElementsBuilder_.addMessage(m);
+                  }
+                  break;
+                } // case 74
+              case 82:
+                {
+                  com.google.cloud.documentai.v1beta2.Document.Page.Table m =
+                      input.readMessage(
+                          com.google.cloud.documentai.v1beta2.Document.Page.Table.parser(),
+                          extensionRegistry);
+                  if (tablesBuilder_ == null) {
+                    ensureTablesIsMutable();
+                    tables_.add(m);
+                  } else {
+                    tablesBuilder_.addMessage(m);
+                  }
+                  break;
+                } // case 82
+              case 90:
+                {
+                  com.google.cloud.documentai.v1beta2.Document.Page.FormField m =
+                      input.readMessage(
+                          com.google.cloud.documentai.v1beta2.Document.Page.FormField.parser(),
+                          extensionRegistry);
+                  if (formFieldsBuilder_ == null) {
+                    ensureFormFieldsIsMutable();
+                    formFields_.add(m);
+                  } else {
+                    formFieldsBuilder_.addMessage(m);
+                  }
+                  break;
+                } // case 90
+              case 98:
+                {
+                  com.google.cloud.documentai.v1beta2.Document.Page.Symbol m =
+                      input.readMessage(
+                          com.google.cloud.documentai.v1beta2.Document.Page.Symbol.parser(),
+                          extensionRegistry);
+                  if (symbolsBuilder_ == null) {
+                    ensureSymbolsIsMutable();
+                    symbols_.add(m);
+                  } else {
+                    symbolsBuilder_.addMessage(m);
+                  }
+                  break;
+                } // case 98
+              case 106:
+                {
+                  input.readMessage(getImageFieldBuilder().getBuilder(), extensionRegistry);
+                  bitField0_ |= 0x00000002;
+                  break;
+                } // case 106
+              case 114:
+                {
+                  com.google.cloud.documentai.v1beta2.Document.Page.Matrix m =
+                      input.readMessage(
+                          com.google.cloud.documentai.v1beta2.Document.Page.Matrix.parser(),
+                          extensionRegistry);
+                  if (transformsBuilder_ == null) {
+                    ensureTransformsIsMutable();
+                    transforms_.add(m);
+                  } else {
+                    transformsBuilder_.addMessage(m);
+                  }
+                  break;
+                } // case 114
+              case 122:
+                {
+                  com.google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode m =
+                      input.readMessage(
+                          com.google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode
+                              .parser(),
+                          extensionRegistry);
+                  if (detectedBarcodesBuilder_ == null) {
+                    ensureDetectedBarcodesIsMutable();
+                    detectedBarcodes_.add(m);
+                  } else {
+                    detectedBarcodesBuilder_.addMessage(m);
+                  }
+                  break;
+                } // case 122
+              case 130:
+                {
+                  input.readMessage(getProvenanceFieldBuilder().getBuilder(), extensionRegistry);
+                  bitField0_ |= 0x00010000;
+                  break;
+                } // case 130
+              case 138:
+                {
+                  input.readMessage(
+                      getImageQualityScoresFieldBuilder().getBuilder(), extensionRegistry);
+                  bitField0_ |= 0x00008000;
+                  break;
+                } // case 138
+              default:
+                {
+                  if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                    done = true; // was an endgroup tag
+                  }
+                  break;
+                } // default:
+            } // switch (tag)
+          } // while (!done)
+        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          throw e.unwrapIOException();
+        } finally {
+          onChanged();
+        } // finally
+        return this;
+      }
+
+      private int bitField0_;
+
+      private int pageNumber_;
+      /**
+       *
+       *
+       * 
+       * 1-based index for current
+       * [Page][google.cloud.documentai.v1beta2.Document.Page] in a parent
+       * [Document][google.cloud.documentai.v1beta2.Document]. Useful when a page
+       * is taken out of a [Document][google.cloud.documentai.v1beta2.Document]
+       * for individual processing.
+       * 

+       *
+       * int32 page_number = 1;
+       *
+       * @return The pageNumber.
+       */
+      @java.lang.Override
+      public int getPageNumber() {
+        return pageNumber_;
+      }
+      /**
+       *
+       *
+       * 
+       * 1-based index for current
+       * [Page][google.cloud.documentai.v1beta2.Document.Page] in a parent
+       * [Document][google.cloud.documentai.v1beta2.Document]. Useful when a page
+       * is taken out of a [Document][google.cloud.documentai.v1beta2.Document]
+       * for individual processing.
+       * 

+       *
+       * int32 page_number = 1;
+       *
+       * @param value The pageNumber to set.
+       * @return This builder for chaining.
+       */
+      public Builder setPageNumber(int value) {
+
+        pageNumber_ = value;
+        bitField0_ |= 0x00000001;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * 1-based index for current
+       * [Page][google.cloud.documentai.v1beta2.Document.Page] in a parent
+       * [Document][google.cloud.documentai.v1beta2.Document]. Useful when a page
+       * is taken out of a [Document][google.cloud.documentai.v1beta2.Document]
+       * for individual processing.
+       * 

+       *
+       * int32 page_number = 1;
+       *
+       * @return This builder for chaining.
+       */
+      public Builder clearPageNumber() {
+        bitField0_ = (bitField0_ & ~0x00000001);
+        pageNumber_ = 0;
+        onChanged();
+        return this;
+      }
+
+      private com.google.cloud.documentai.v1beta2.Document.Page.Image image_;
+      private com.google.protobuf.SingleFieldBuilderV3<
+              com.google.cloud.documentai.v1beta2.Document.Page.Image,
+              com.google.cloud.documentai.v1beta2.Document.Page.Image.Builder,
+              com.google.cloud.documentai.v1beta2.Document.Page.ImageOrBuilder>
+          imageBuilder_;
+      /**
+       *
+       *
+       * 
+       * Rendered image for this page. This image is preprocessed to remove any
+       * skew, rotation, and distortions such that the annotation bounding boxes
+       * can be upright and axis-aligned.
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Page.Image image = 13;
+       *
+       * @return Whether the image field is set.
+       */
+      public boolean hasImage() {
+        return ((bitField0_ & 0x00000002) != 0);
+      }
+      /**
+       *
+       *
+       * 
+       * Rendered image for this page. This image is preprocessed to remove any
+       * skew, rotation, and distortions such that the annotation bounding boxes
+       * can be upright and axis-aligned.
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Page.Image image = 13;
+       *
+       * @return The image.
+       */
+      public com.google.cloud.documentai.v1beta2.Document.Page.Image getImage() {
+        if (imageBuilder_ == null) {
+          return image_ == null
+              ? com.google.cloud.documentai.v1beta2.Document.Page.Image.getDefaultInstance()
+              : image_;
+        } else {
+          return imageBuilder_.getMessage();
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * Rendered image for this page. This image is preprocessed to remove any
+       * skew, rotation, and distortions such that the annotation bounding boxes
+       * can be upright and axis-aligned.
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Page.Image image = 13;
+       */
+      public Builder setImage(com.google.cloud.documentai.v1beta2.Document.Page.Image value) {
+        if (imageBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          image_ = value;
+        } else {
+          imageBuilder_.setMessage(value);
+        }
+        bitField0_ |= 0x00000002;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * Rendered image for this page. This image is preprocessed to remove any
+       * skew, rotation, and distortions such that the annotation bounding boxes
+       * can be upright and axis-aligned.
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Page.Image image = 13;
+       */
+      public Builder setImage(
+          com.google.cloud.documentai.v1beta2.Document.Page.Image.Builder builderForValue) {
+        if (imageBuilder_ == null) {
+          image_ = builderForValue.build();
+        } else {
+          imageBuilder_.setMessage(builderForValue.build());
+        }
+        bitField0_ |= 0x00000002;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * Rendered image for this page. This image is preprocessed to remove any
+       * skew, rotation, and distortions such that the annotation bounding boxes
+       * can be upright and axis-aligned.
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Page.Image image = 13;
+       */
+      public Builder mergeImage(com.google.cloud.documentai.v1beta2.Document.Page.Image value) {
+        if (imageBuilder_ == null) {
+          if (((bitField0_ & 0x00000002) != 0)
+              && image_ != null
+              && image_
+                  != com.google.cloud.documentai.v1beta2.Document.Page.Image.getDefaultInstance()) {
+            getImageBuilder().mergeFrom(value);
+          } else {
+            image_ = value;
+          }
+        } else {
+          imageBuilder_.mergeFrom(value);
+        }
+        bitField0_ |= 0x00000002;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * Rendered image for this page. This image is preprocessed to remove any
+       * skew, rotation, and distortions such that the annotation bounding boxes
+       * can be upright and axis-aligned.
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Page.Image image = 13;
+       */
+      public Builder clearImage() {
+        bitField0_ = (bitField0_ & ~0x00000002);
+        image_ = null;
+        if (imageBuilder_ != null) {
+          imageBuilder_.dispose();
+          imageBuilder_ = null;
+        }
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * Rendered image for this page. This image is preprocessed to remove any
+       * skew, rotation, and distortions such that the annotation bounding boxes
+       * can be upright and axis-aligned.
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Page.Image image = 13;
+       */
+      public com.google.cloud.documentai.v1beta2.Document.Page.Image.Builder getImageBuilder() {
+        bitField0_ |= 0x00000002;
+        onChanged();
+        return getImageFieldBuilder().getBuilder();
+      }
+      /**
+       *
+       *
+       * 
+       * Rendered image for this page. This image is preprocessed to remove any
+       * skew, rotation, and distortions such that the annotation bounding boxes
+       * can be upright and axis-aligned.
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Page.Image image = 13;
+       */
+      public com.google.cloud.documentai.v1beta2.Document.Page.ImageOrBuilder getImageOrBuilder() {
+        if (imageBuilder_ != null) {
+          return imageBuilder_.getMessageOrBuilder();
+        } else {
+          return image_ == null
+              ? com.google.cloud.documentai.v1beta2.Document.Page.Image.getDefaultInstance()
+              : image_;
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * Rendered image for this page. This image is preprocessed to remove any
+       * skew, rotation, and distortions such that the annotation bounding boxes
+       * can be upright and axis-aligned.
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Page.Image image = 13;
+       */
+      private com.google.protobuf.SingleFieldBuilderV3<
+              com.google.cloud.documentai.v1beta2.Document.Page.Image,
+              com.google.cloud.documentai.v1beta2.Document.Page.Image.Builder,
+              com.google.cloud.documentai.v1beta2.Document.Page.ImageOrBuilder>
+          getImageFieldBuilder() {
+        if (imageBuilder_ == null) {
+          imageBuilder_ =
+              new com.google.protobuf.SingleFieldBuilderV3<
+                  com.google.cloud.documentai.v1beta2.Document.Page.Image,
+                  com.google.cloud.documentai.v1beta2.Document.Page.Image.Builder,
+                  com.google.cloud.documentai.v1beta2.Document.Page.ImageOrBuilder>(
+                  getImage(), getParentForChildren(), isClean());
+          image_ = null;
+        }
+        return imageBuilder_;
+      }
+
+      private java.util.List transforms_ =
+          java.util.Collections.emptyList();
+
+      private void ensureTransformsIsMutable() {
+        if (!((bitField0_ & 0x00000004) != 0)) {
+          transforms_ =
+              new java.util.ArrayList(
+                  transforms_);
+          bitField0_ |= 0x00000004;
+        }
+      }
+
+      private com.google.protobuf.RepeatedFieldBuilderV3<
+              com.google.cloud.documentai.v1beta2.Document.Page.Matrix,
+              com.google.cloud.documentai.v1beta2.Document.Page.Matrix.Builder,
+              com.google.cloud.documentai.v1beta2.Document.Page.MatrixOrBuilder>
+          transformsBuilder_;
+
+      /**
+       *
+       *
+       * 
+       * Transformation matrices that were applied to the original document image
+       * to produce
+       * [Page.image][google.cloud.documentai.v1beta2.Document.Page.image].
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Matrix transforms = 14;
+       * 
+       */
+      public java.util.List
+          getTransformsList() {
+        if (transformsBuilder_ == null) {
+          return java.util.Collections.unmodifiableList(transforms_);
+        } else {
+          return transformsBuilder_.getMessageList();
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * Transformation matrices that were applied to the original document image
+       * to produce
+       * [Page.image][google.cloud.documentai.v1beta2.Document.Page.image].
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Matrix transforms = 14;
+       * 
+       */
+      public int getTransformsCount() {
+        if (transformsBuilder_ == null) {
+          return transforms_.size();
+        } else {
+          return transformsBuilder_.getCount();
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * Transformation matrices that were applied to the original document image
+       * to produce
+       * [Page.image][google.cloud.documentai.v1beta2.Document.Page.image].
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Matrix transforms = 14;
+       * 
+       */
+      public com.google.cloud.documentai.v1beta2.Document.Page.Matrix getTransforms(int index) {
+        if (transformsBuilder_ == null) {
+          return transforms_.get(index);
+        } else {
+          return transformsBuilder_.getMessage(index);
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * Transformation matrices that were applied to the original document image
+       * to produce
+       * [Page.image][google.cloud.documentai.v1beta2.Document.Page.image].
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Matrix transforms = 14;
+       * 
+       */
+      public Builder setTransforms(
+          int index, com.google.cloud.documentai.v1beta2.Document.Page.Matrix value) {
+        if (transformsBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          ensureTransformsIsMutable();
+          transforms_.set(index, value);
+          onChanged();
+        } else {
+          transformsBuilder_.setMessage(index, value);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * Transformation matrices that were applied to the original document image
+       * to produce
+       * [Page.image][google.cloud.documentai.v1beta2.Document.Page.image].
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Matrix transforms = 14;
+       * 
+       */
+      public Builder setTransforms(
+          int index,
+          com.google.cloud.documentai.v1beta2.Document.Page.Matrix.Builder builderForValue) {
+        if (transformsBuilder_ == null) {
+          ensureTransformsIsMutable();
+          transforms_.set(index, builderForValue.build());
+          onChanged();
+        } else {
+          transformsBuilder_.setMessage(index, builderForValue.build());
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * Transformation matrices that were applied to the original document image
+       * to produce
+       * [Page.image][google.cloud.documentai.v1beta2.Document.Page.image].
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Matrix transforms = 14;
+       * 
+       */
+      public Builder addTransforms(com.google.cloud.documentai.v1beta2.Document.Page.Matrix value) {
+        if (transformsBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          ensureTransformsIsMutable();
+          transforms_.add(value);
+          onChanged();
+        } else {
+          transformsBuilder_.addMessage(value);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * Transformation matrices that were applied to the original document image
+       * to produce
+       * [Page.image][google.cloud.documentai.v1beta2.Document.Page.image].
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Matrix transforms = 14;
+       * 
+       */
+      public Builder addTransforms(
+          int index, com.google.cloud.documentai.v1beta2.Document.Page.Matrix value) {
+        if (transformsBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          ensureTransformsIsMutable();
+          transforms_.add(index, value);
+          onChanged();
+        } else {
+          transformsBuilder_.addMessage(index, value);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * Transformation matrices that were applied to the original document image
+       * to produce
+       * [Page.image][google.cloud.documentai.v1beta2.Document.Page.image].
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Matrix transforms = 14;
+       * 
+       */
+      public Builder addTransforms(
+          com.google.cloud.documentai.v1beta2.Document.Page.Matrix.Builder builderForValue) {
+        if (transformsBuilder_ == null) {
+          ensureTransformsIsMutable();
+          transforms_.add(builderForValue.build());
+          onChanged();
+        } else {
+          transformsBuilder_.addMessage(builderForValue.build());
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * Transformation matrices that were applied to the original document image
+       * to produce
+       * [Page.image][google.cloud.documentai.v1beta2.Document.Page.image].
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Matrix transforms = 14;
+       * 
+       */
+      public Builder addTransforms(
+          int index,
+          com.google.cloud.documentai.v1beta2.Document.Page.Matrix.Builder builderForValue) {
+        if (transformsBuilder_ == null) {
+          ensureTransformsIsMutable();
+          transforms_.add(index, builderForValue.build());
+          onChanged();
+        } else {
+          transformsBuilder_.addMessage(index, builderForValue.build());
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * Transformation matrices that were applied to the original document image
+       * to produce
+       * [Page.image][google.cloud.documentai.v1beta2.Document.Page.image].
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Matrix transforms = 14;
+       * 
+       */
+      public Builder addAllTransforms(
+          java.lang.Iterable
+              values) {
+        if (transformsBuilder_ == null) {
+          ensureTransformsIsMutable();
+          com.google.protobuf.AbstractMessageLite.Builder.addAll(values, transforms_);
+          onChanged();
+        } else {
+          transformsBuilder_.addAllMessages(values);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * Transformation matrices that were applied to the original document image
+       * to produce
+       * [Page.image][google.cloud.documentai.v1beta2.Document.Page.image].
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Matrix transforms = 14;
+       * 
+       */
+      public Builder clearTransforms() {
+        if (transformsBuilder_ == null) {
+          transforms_ = java.util.Collections.emptyList();
+          bitField0_ = (bitField0_ & ~0x00000004);
+          onChanged();
+        } else {
+          transformsBuilder_.clear();
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * Transformation matrices that were applied to the original document image
+       * to produce
+       * [Page.image][google.cloud.documentai.v1beta2.Document.Page.image].
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Matrix transforms = 14;
+       * 
+       */
+      public Builder removeTransforms(int index) {
+        if (transformsBuilder_ == null) {
+          ensureTransformsIsMutable();
+          transforms_.remove(index);
+          onChanged();
+        } else {
+          transformsBuilder_.remove(index);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * Transformation matrices that were applied to the original document image
+       * to produce
+       * [Page.image][google.cloud.documentai.v1beta2.Document.Page.image].
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Matrix transforms = 14;
+       * 
+       */
+      public com.google.cloud.documentai.v1beta2.Document.Page.Matrix.Builder getTransformsBuilder(
+          int index) {
+        return getTransformsFieldBuilder().getBuilder(index);
+      }
+      /**
+       *
+       *
+       * 
+       * Transformation matrices that were applied to the original document image
+       * to produce
+       * [Page.image][google.cloud.documentai.v1beta2.Document.Page.image].
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Matrix transforms = 14;
+       * 
+       */
+      public com.google.cloud.documentai.v1beta2.Document.Page.MatrixOrBuilder
+          getTransformsOrBuilder(int index) {
+        if (transformsBuilder_ == null) {
+          return transforms_.get(index);
+        } else {
+          return transformsBuilder_.getMessageOrBuilder(index);
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * Transformation matrices that were applied to the original document image
+       * to produce
+       * [Page.image][google.cloud.documentai.v1beta2.Document.Page.image].
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Matrix transforms = 14;
+       * 
+       */
+      public java.util.List<
+              ? extends com.google.cloud.documentai.v1beta2.Document.Page.MatrixOrBuilder>
+          getTransformsOrBuilderList() {
+        if (transformsBuilder_ != null) {
+          return transformsBuilder_.getMessageOrBuilderList();
+        } else {
+          return java.util.Collections.unmodifiableList(transforms_);
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * Transformation matrices that were applied to the original document image
+       * to produce
+       * [Page.image][google.cloud.documentai.v1beta2.Document.Page.image].
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Matrix transforms = 14;
+       * 
+       */
+      public com.google.cloud.documentai.v1beta2.Document.Page.Matrix.Builder
+          addTransformsBuilder() {
+        return getTransformsFieldBuilder()
+            .addBuilder(
+                com.google.cloud.documentai.v1beta2.Document.Page.Matrix.getDefaultInstance());
+      }
+      /**
+       *
+       *
+       * 
+       * Transformation matrices that were applied to the original document image
+       * to produce
+       * [Page.image][google.cloud.documentai.v1beta2.Document.Page.image].
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Matrix transforms = 14;
+       * 
+       */
+      public com.google.cloud.documentai.v1beta2.Document.Page.Matrix.Builder addTransformsBuilder(
+          int index) {
+        return getTransformsFieldBuilder()
+            .addBuilder(
+                index,
+                com.google.cloud.documentai.v1beta2.Document.Page.Matrix.getDefaultInstance());
+      }
+      /**
+       *
+       *
+       * 
+       * Transformation matrices that were applied to the original document image
+       * to produce
+       * [Page.image][google.cloud.documentai.v1beta2.Document.Page.image].
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Matrix transforms = 14;
+       * 
+       */
+      public java.util.List
+          getTransformsBuilderList() {
+        return getTransformsFieldBuilder().getBuilderList();
+      }
+
+      private com.google.protobuf.RepeatedFieldBuilderV3<
+              com.google.cloud.documentai.v1beta2.Document.Page.Matrix,
+              com.google.cloud.documentai.v1beta2.Document.Page.Matrix.Builder,
+              com.google.cloud.documentai.v1beta2.Document.Page.MatrixOrBuilder>
+          getTransformsFieldBuilder() {
+        if (transformsBuilder_ == null) {
+          transformsBuilder_ =
+              new com.google.protobuf.RepeatedFieldBuilderV3<
+                  com.google.cloud.documentai.v1beta2.Document.Page.Matrix,
+                  com.google.cloud.documentai.v1beta2.Document.Page.Matrix.Builder,
+                  com.google.cloud.documentai.v1beta2.Document.Page.MatrixOrBuilder>(
+                  transforms_, ((bitField0_ & 0x00000004) != 0), getParentForChildren(), isClean());
+          transforms_ = null;
+        }
+        return transformsBuilder_;
+      }
+
+      private com.google.cloud.documentai.v1beta2.Document.Page.Dimension dimension_;
+      private com.google.protobuf.SingleFieldBuilderV3<
+              com.google.cloud.documentai.v1beta2.Document.Page.Dimension,
+              com.google.cloud.documentai.v1beta2.Document.Page.Dimension.Builder,
+              com.google.cloud.documentai.v1beta2.Document.Page.DimensionOrBuilder>
+          dimensionBuilder_;
+      /**
+       *
+       *
+       * 
+       * Physical dimension of the page.
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Page.Dimension dimension = 2;
+       *
+       * @return Whether the dimension field is set.
+       */
+      public boolean hasDimension() {
+        return ((bitField0_ & 0x00000008) != 0);
+      }
+      /**
+       *
+       *
+       * 
+       * Physical dimension of the page.
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Page.Dimension dimension = 2;
+       *
+       * @return The dimension.
+       */
+      public com.google.cloud.documentai.v1beta2.Document.Page.Dimension getDimension() {
+        if (dimensionBuilder_ == null) {
+          return dimension_ == null
+              ? com.google.cloud.documentai.v1beta2.Document.Page.Dimension.getDefaultInstance()
+              : dimension_;
+        } else {
+          return dimensionBuilder_.getMessage();
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * Physical dimension of the page.
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Page.Dimension dimension = 2;
+       */
+      public Builder setDimension(
+          com.google.cloud.documentai.v1beta2.Document.Page.Dimension value) {
+        if (dimensionBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          dimension_ = value;
+        } else {
+          dimensionBuilder_.setMessage(value);
+        }
+        bitField0_ |= 0x00000008;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * Physical dimension of the page.
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Page.Dimension dimension = 2;
+       */
+      public Builder setDimension(
+          com.google.cloud.documentai.v1beta2.Document.Page.Dimension.Builder builderForValue) {
+        if (dimensionBuilder_ == null) {
+          dimension_ = builderForValue.build();
+        } else {
+          dimensionBuilder_.setMessage(builderForValue.build());
+        }
+        bitField0_ |= 0x00000008;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * Physical dimension of the page.
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Page.Dimension dimension = 2;
+       */
+      public Builder mergeDimension(
+          com.google.cloud.documentai.v1beta2.Document.Page.Dimension value) {
+        if (dimensionBuilder_ == null) {
+          if (((bitField0_ & 0x00000008) != 0)
+              && dimension_ != null
+              && dimension_
+                  != com.google.cloud.documentai.v1beta2.Document.Page.Dimension
+                      .getDefaultInstance()) {
+            getDimensionBuilder().mergeFrom(value);
+          } else {
+            dimension_ = value;
+          }
+        } else {
+          dimensionBuilder_.mergeFrom(value);
+        }
+        bitField0_ |= 0x00000008;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * Physical dimension of the page.
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Page.Dimension dimension = 2;
+       */
+      public Builder clearDimension() {
+        bitField0_ = (bitField0_ & ~0x00000008);
+        dimension_ = null;
+        if (dimensionBuilder_ != null) {
+          dimensionBuilder_.dispose();
+          dimensionBuilder_ = null;
+        }
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * Physical dimension of the page.
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Page.Dimension dimension = 2;
+       */
+      public com.google.cloud.documentai.v1beta2.Document.Page.Dimension.Builder
+          getDimensionBuilder() {
+        bitField0_ |= 0x00000008;
+        onChanged();
+        return getDimensionFieldBuilder().getBuilder();
+      }
+      /**
+       *
+       *
+       * 
+       * Physical dimension of the page.
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Page.Dimension dimension = 2;
+       */
+      public com.google.cloud.documentai.v1beta2.Document.Page.DimensionOrBuilder
+          getDimensionOrBuilder() {
+        if (dimensionBuilder_ != null) {
+          return dimensionBuilder_.getMessageOrBuilder();
+        } else {
+          return dimension_ == null
+              ? com.google.cloud.documentai.v1beta2.Document.Page.Dimension.getDefaultInstance()
+              : dimension_;
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * Physical dimension of the page.
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Page.Dimension dimension = 2;
+       */
+      private com.google.protobuf.SingleFieldBuilderV3<
+              com.google.cloud.documentai.v1beta2.Document.Page.Dimension,
+              com.google.cloud.documentai.v1beta2.Document.Page.Dimension.Builder,
+              com.google.cloud.documentai.v1beta2.Document.Page.DimensionOrBuilder>
+          getDimensionFieldBuilder() {
+        if (dimensionBuilder_ == null) {
+          dimensionBuilder_ =
+              new com.google.protobuf.SingleFieldBuilderV3<
+                  com.google.cloud.documentai.v1beta2.Document.Page.Dimension,
+                  com.google.cloud.documentai.v1beta2.Document.Page.Dimension.Builder,
+                  com.google.cloud.documentai.v1beta2.Document.Page.DimensionOrBuilder>(
+                  getDimension(), getParentForChildren(), isClean());
+          dimension_ = null;
+        }
+        return dimensionBuilder_;
+      }
+
+      private com.google.cloud.documentai.v1beta2.Document.Page.Layout layout_;
+      private com.google.protobuf.SingleFieldBuilderV3<
+              com.google.cloud.documentai.v1beta2.Document.Page.Layout,
+              com.google.cloud.documentai.v1beta2.Document.Page.Layout.Builder,
+              com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder>
+          layoutBuilder_;
+      /**
+       *
+       *
+       * 
+       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for the
+       * page.
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 3;
+       *
+       * @return Whether the layout field is set.
+       */
+      public boolean hasLayout() {
+        return ((bitField0_ & 0x00000010) != 0);
+      }
+      /**
+       *
+       *
+       * 
+       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for the
+       * page.
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 3;
+       *
+       * @return The layout.
+       */
+      public com.google.cloud.documentai.v1beta2.Document.Page.Layout getLayout() {
+        if (layoutBuilder_ == null) {
+          return layout_ == null
+              ? com.google.cloud.documentai.v1beta2.Document.Page.Layout.getDefaultInstance()
+              : layout_;
+        } else {
+          return layoutBuilder_.getMessage();
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for the
+       * page.
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 3;
+       */
+      public Builder setLayout(com.google.cloud.documentai.v1beta2.Document.Page.Layout value) {
+        if (layoutBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          layout_ = value;
+        } else {
+          layoutBuilder_.setMessage(value);
+        }
+        bitField0_ |= 0x00000010;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for the
+       * page.
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 3;
+       */
+      public Builder setLayout(
+          com.google.cloud.documentai.v1beta2.Document.Page.Layout.Builder builderForValue) {
+        if (layoutBuilder_ == null) {
+          layout_ = builderForValue.build();
+        } else {
+          layoutBuilder_.setMessage(builderForValue.build());
+        }
+        bitField0_ |= 0x00000010;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for the
+       * page.
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 3;
+       */
+      public Builder mergeLayout(com.google.cloud.documentai.v1beta2.Document.Page.Layout value) {
+        if (layoutBuilder_ == null) {
+          if (((bitField0_ & 0x00000010) != 0)
+              && layout_ != null
+              && layout_
+                  != com.google.cloud.documentai.v1beta2.Document.Page.Layout
+                      .getDefaultInstance()) {
+            getLayoutBuilder().mergeFrom(value);
+          } else {
+            layout_ = value;
+          }
+        } else {
+          layoutBuilder_.mergeFrom(value);
+        }
+        bitField0_ |= 0x00000010;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for the
+       * page.
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 3;
+       */
+      public Builder clearLayout() {
+        bitField0_ = (bitField0_ & ~0x00000010);
+        layout_ = null;
+        if (layoutBuilder_ != null) {
+          layoutBuilder_.dispose();
+          layoutBuilder_ = null;
+        }
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for the
+       * page.
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 3;
+       */
+      public com.google.cloud.documentai.v1beta2.Document.Page.Layout.Builder getLayoutBuilder() {
+        bitField0_ |= 0x00000010;
+        onChanged();
+        return getLayoutFieldBuilder().getBuilder();
+      }
+      /**
+       *
+       *
+       * 
+       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for the
+       * page.
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 3;
+       */
+      public com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder
+          getLayoutOrBuilder() {
+        if (layoutBuilder_ != null) {
+          return layoutBuilder_.getMessageOrBuilder();
+        } else {
+          return layout_ == null
+              ? com.google.cloud.documentai.v1beta2.Document.Page.Layout.getDefaultInstance()
+              : layout_;
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for the
+       * page.
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 3;
+       */
+      private com.google.protobuf.SingleFieldBuilderV3<
+              com.google.cloud.documentai.v1beta2.Document.Page.Layout,
+              com.google.cloud.documentai.v1beta2.Document.Page.Layout.Builder,
+              com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder>
+          getLayoutFieldBuilder() {
+        if (layoutBuilder_ == null) {
+          layoutBuilder_ =
+              new com.google.protobuf.SingleFieldBuilderV3<
+                  com.google.cloud.documentai.v1beta2.Document.Page.Layout,
+                  com.google.cloud.documentai.v1beta2.Document.Page.Layout.Builder,
+                  com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder>(
+                  getLayout(), getParentForChildren(), isClean());
+          layout_ = null;
+        }
+        return layoutBuilder_;
+      }
+
+      private java.util.List
+          detectedLanguages_ = java.util.Collections.emptyList();
+
+      private void ensureDetectedLanguagesIsMutable() {
+        if (!((bitField0_ & 0x00000020) != 0)) {
+          detectedLanguages_ =
+              new java.util.ArrayList<
+                  com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage>(
+                  detectedLanguages_);
+          bitField0_ |= 0x00000020;
+        }
+      }
+
+      private com.google.protobuf.RepeatedFieldBuilderV3<
+              com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage,
+              com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder,
+              com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>
+          detectedLanguagesBuilder_;
+
+      /**
+       *
+       *
+       * 
+       * A list of detected languages together with confidence.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
+       * 
+       */
+      public java.util.List
+          getDetectedLanguagesList() {
+        if (detectedLanguagesBuilder_ == null) {
+          return java.util.Collections.unmodifiableList(detectedLanguages_);
+        } else {
+          return detectedLanguagesBuilder_.getMessageList();
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * A list of detected languages together with confidence.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
+       * 
+       */
+      public int getDetectedLanguagesCount() {
+        if (detectedLanguagesBuilder_ == null) {
+          return detectedLanguages_.size();
+        } else {
+          return detectedLanguagesBuilder_.getCount();
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * A list of detected languages together with confidence.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
+       * 
+       */
+      public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage
+          getDetectedLanguages(int index) {
+        if (detectedLanguagesBuilder_ == null) {
+          return detectedLanguages_.get(index);
+        } else {
+          return detectedLanguagesBuilder_.getMessage(index);
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * A list of detected languages together with confidence.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
+       * 
+       */
+      public Builder setDetectedLanguages(
+          int index, com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value) {
+        if (detectedLanguagesBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          ensureDetectedLanguagesIsMutable();
+          detectedLanguages_.set(index, value);
+          onChanged();
+        } else {
+          detectedLanguagesBuilder_.setMessage(index, value);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of detected languages together with confidence.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
+       * 
+       */
+      public Builder setDetectedLanguages(
+          int index,
+          com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
+              builderForValue) {
+        if (detectedLanguagesBuilder_ == null) {
+          ensureDetectedLanguagesIsMutable();
+          detectedLanguages_.set(index, builderForValue.build());
+          onChanged();
+        } else {
+          detectedLanguagesBuilder_.setMessage(index, builderForValue.build());
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of detected languages together with confidence.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
+       * 
+       */
+      public Builder addDetectedLanguages(
+          com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value) {
+        if (detectedLanguagesBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          ensureDetectedLanguagesIsMutable();
+          detectedLanguages_.add(value);
+          onChanged();
+        } else {
+          detectedLanguagesBuilder_.addMessage(value);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of detected languages together with confidence.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
+       * 
+       */
+      public Builder addDetectedLanguages(
+          int index, com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value) {
+        if (detectedLanguagesBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          ensureDetectedLanguagesIsMutable();
+          detectedLanguages_.add(index, value);
+          onChanged();
+        } else {
+          detectedLanguagesBuilder_.addMessage(index, value);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of detected languages together with confidence.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
+       * 
+       */
+      public Builder addDetectedLanguages(
+          com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
+              builderForValue) {
+        if (detectedLanguagesBuilder_ == null) {
+          ensureDetectedLanguagesIsMutable();
+          detectedLanguages_.add(builderForValue.build());
+          onChanged();
+        } else {
+          detectedLanguagesBuilder_.addMessage(builderForValue.build());
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of detected languages together with confidence.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
+       * 
+       */
+      public Builder addDetectedLanguages(
+          int index,
+          com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
+              builderForValue) {
+        if (detectedLanguagesBuilder_ == null) {
+          ensureDetectedLanguagesIsMutable();
+          detectedLanguages_.add(index, builderForValue.build());
+          onChanged();
+        } else {
+          detectedLanguagesBuilder_.addMessage(index, builderForValue.build());
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of detected languages together with confidence.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
+       * 
+       */
+      public Builder addAllDetectedLanguages(
+          java.lang.Iterable<
+                  ? extends com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage>
+              values) {
+        if (detectedLanguagesBuilder_ == null) {
+          ensureDetectedLanguagesIsMutable();
+          com.google.protobuf.AbstractMessageLite.Builder.addAll(values, detectedLanguages_);
+          onChanged();
+        } else {
+          detectedLanguagesBuilder_.addAllMessages(values);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of detected languages together with confidence.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
+       * 
+       */
+      public Builder clearDetectedLanguages() {
+        if (detectedLanguagesBuilder_ == null) {
+          detectedLanguages_ = java.util.Collections.emptyList();
+          bitField0_ = (bitField0_ & ~0x00000020);
+          onChanged();
+        } else {
+          detectedLanguagesBuilder_.clear();
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of detected languages together with confidence.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
+       * 
+       */
+      public Builder removeDetectedLanguages(int index) {
+        if (detectedLanguagesBuilder_ == null) {
+          ensureDetectedLanguagesIsMutable();
+          detectedLanguages_.remove(index);
+          onChanged();
+        } else {
+          detectedLanguagesBuilder_.remove(index);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of detected languages together with confidence.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
+       * 
+       */
+      public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
+          getDetectedLanguagesBuilder(int index) {
+        return getDetectedLanguagesFieldBuilder().getBuilder(index);
+      }
+      /**
+       *
+       *
+       * 
+       * A list of detected languages together with confidence.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
+       * 
+       */
+      public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder
+          getDetectedLanguagesOrBuilder(int index) {
+        if (detectedLanguagesBuilder_ == null) {
+          return detectedLanguages_.get(index);
+        } else {
+          return detectedLanguagesBuilder_.getMessageOrBuilder(index);
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * A list of detected languages together with confidence.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
+       * 
+       */
+      public java.util.List<
+              ? extends com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>
+          getDetectedLanguagesOrBuilderList() {
+        if (detectedLanguagesBuilder_ != null) {
+          return detectedLanguagesBuilder_.getMessageOrBuilderList();
+        } else {
+          return java.util.Collections.unmodifiableList(detectedLanguages_);
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * A list of detected languages together with confidence.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
+       * 
+       */
+      public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
+          addDetectedLanguagesBuilder() {
+        return getDetectedLanguagesFieldBuilder()
+            .addBuilder(
+                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage
+                    .getDefaultInstance());
+      }
+      /**
+       *
+       *
+       * 
+       * A list of detected languages together with confidence.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
+       * 
+       */
+      public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
+          addDetectedLanguagesBuilder(int index) {
+        return getDetectedLanguagesFieldBuilder()
+            .addBuilder(
+                index,
+                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage
+                    .getDefaultInstance());
+      }
+      /**
+       *
+       *
+       * 
+       * A list of detected languages together with confidence.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
+       * 
+       */
+      public java.util.List<
+              com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder>
+          getDetectedLanguagesBuilderList() {
+        return getDetectedLanguagesFieldBuilder().getBuilderList();
+      }
+
+      private com.google.protobuf.RepeatedFieldBuilderV3<
+              com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage,
+              com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder,
+              com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>
+          getDetectedLanguagesFieldBuilder() {
+        if (detectedLanguagesBuilder_ == null) {
+          detectedLanguagesBuilder_ =
+              new com.google.protobuf.RepeatedFieldBuilderV3<
+                  com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage,
+                  com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder,
+                  com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>(
+                  detectedLanguages_,
+                  ((bitField0_ & 0x00000020) != 0),
+                  getParentForChildren(),
+                  isClean());
+          detectedLanguages_ = null;
+        }
+        return detectedLanguagesBuilder_;
+      }
+
+      private java.util.List blocks_ =
+          java.util.Collections.emptyList();
+
+      private void ensureBlocksIsMutable() {
+        if (!((bitField0_ & 0x00000040) != 0)) {
+          blocks_ =
+              new java.util.ArrayList(
+                  blocks_);
+          bitField0_ |= 0x00000040;
+        }
+      }
+
+      private com.google.protobuf.RepeatedFieldBuilderV3<
+              com.google.cloud.documentai.v1beta2.Document.Page.Block,
+              com.google.cloud.documentai.v1beta2.Document.Page.Block.Builder,
+              com.google.cloud.documentai.v1beta2.Document.Page.BlockOrBuilder>
+          blocksBuilder_;
+
+      /**
+       *
+       *
+       * 
+       * A list of visually detected text blocks on the page.
+       * A block has a set of lines (collected into paragraphs) that have a common
+       * line-spacing and orientation.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Block blocks = 5;
+       */
+      public java.util.List
+          getBlocksList() {
+        if (blocksBuilder_ == null) {
+          return java.util.Collections.unmodifiableList(blocks_);
+        } else {
+          return blocksBuilder_.getMessageList();
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected text blocks on the page.
+       * A block has a set of lines (collected into paragraphs) that have a common
+       * line-spacing and orientation.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Block blocks = 5;
+       */
+      public int getBlocksCount() {
+        if (blocksBuilder_ == null) {
+          return blocks_.size();
+        } else {
+          return blocksBuilder_.getCount();
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected text blocks on the page.
+       * A block has a set of lines (collected into paragraphs) that have a common
+       * line-spacing and orientation.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Block blocks = 5;
+       */
+      public com.google.cloud.documentai.v1beta2.Document.Page.Block getBlocks(int index) {
+        if (blocksBuilder_ == null) {
+          return blocks_.get(index);
+        } else {
+          return blocksBuilder_.getMessage(index);
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected text blocks on the page.
+       * A block has a set of lines (collected into paragraphs) that have a common
+       * line-spacing and orientation.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Block blocks = 5;
+       */
+      public Builder setBlocks(
+          int index, com.google.cloud.documentai.v1beta2.Document.Page.Block value) {
+        if (blocksBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          ensureBlocksIsMutable();
+          blocks_.set(index, value);
+          onChanged();
+        } else {
+          blocksBuilder_.setMessage(index, value);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected text blocks on the page.
+       * A block has a set of lines (collected into paragraphs) that have a common
+       * line-spacing and orientation.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Block blocks = 5;
+       */
+      public Builder setBlocks(
+          int index,
+          com.google.cloud.documentai.v1beta2.Document.Page.Block.Builder builderForValue) {
+        if (blocksBuilder_ == null) {
+          ensureBlocksIsMutable();
+          blocks_.set(index, builderForValue.build());
+          onChanged();
+        } else {
+          blocksBuilder_.setMessage(index, builderForValue.build());
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected text blocks on the page.
+       * A block has a set of lines (collected into paragraphs) that have a common
+       * line-spacing and orientation.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Block blocks = 5;
+       */
+      public Builder addBlocks(com.google.cloud.documentai.v1beta2.Document.Page.Block value) {
+        if (blocksBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          ensureBlocksIsMutable();
+          blocks_.add(value);
+          onChanged();
+        } else {
+          blocksBuilder_.addMessage(value);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected text blocks on the page.
+       * A block has a set of lines (collected into paragraphs) that have a common
+       * line-spacing and orientation.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Block blocks = 5;
+       */
+      public Builder addBlocks(
+          int index, com.google.cloud.documentai.v1beta2.Document.Page.Block value) {
+        if (blocksBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          ensureBlocksIsMutable();
+          blocks_.add(index, value);
+          onChanged();
+        } else {
+          blocksBuilder_.addMessage(index, value);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected text blocks on the page.
+       * A block has a set of lines (collected into paragraphs) that have a common
+       * line-spacing and orientation.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Block blocks = 5;
+       */
+      public Builder addBlocks(
+          com.google.cloud.documentai.v1beta2.Document.Page.Block.Builder builderForValue) {
+        if (blocksBuilder_ == null) {
+          ensureBlocksIsMutable();
+          blocks_.add(builderForValue.build());
+          onChanged();
+        } else {
+          blocksBuilder_.addMessage(builderForValue.build());
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected text blocks on the page.
+       * A block has a set of lines (collected into paragraphs) that have a common
+       * line-spacing and orientation.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Block blocks = 5;
+       */
+      public Builder addBlocks(
+          int index,
+          com.google.cloud.documentai.v1beta2.Document.Page.Block.Builder builderForValue) {
+        if (blocksBuilder_ == null) {
+          ensureBlocksIsMutable();
+          blocks_.add(index, builderForValue.build());
+          onChanged();
+        } else {
+          blocksBuilder_.addMessage(index, builderForValue.build());
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected text blocks on the page.
+       * A block has a set of lines (collected into paragraphs) that have a common
+       * line-spacing and orientation.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Block blocks = 5;
+       */
+      public Builder addAllBlocks(
+          java.lang.Iterable
+              values) {
+        if (blocksBuilder_ == null) {
+          ensureBlocksIsMutable();
+          com.google.protobuf.AbstractMessageLite.Builder.addAll(values, blocks_);
+          onChanged();
+        } else {
+          blocksBuilder_.addAllMessages(values);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected text blocks on the page.
+       * A block has a set of lines (collected into paragraphs) that have a common
+       * line-spacing and orientation.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Block blocks = 5;
+       */
+      public Builder clearBlocks() {
+        if (blocksBuilder_ == null) {
+          blocks_ = java.util.Collections.emptyList();
+          bitField0_ = (bitField0_ & ~0x00000040);
+          onChanged();
+        } else {
+          blocksBuilder_.clear();
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected text blocks on the page.
+       * A block has a set of lines (collected into paragraphs) that have a common
+       * line-spacing and orientation.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Block blocks = 5;
+       */
+      public Builder removeBlocks(int index) {
+        if (blocksBuilder_ == null) {
+          ensureBlocksIsMutable();
+          blocks_.remove(index);
+          onChanged();
+        } else {
+          blocksBuilder_.remove(index);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected text blocks on the page.
+       * A block has a set of lines (collected into paragraphs) that have a common
+       * line-spacing and orientation.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Block blocks = 5;
+       */
+      public com.google.cloud.documentai.v1beta2.Document.Page.Block.Builder getBlocksBuilder(
+          int index) {
+        return getBlocksFieldBuilder().getBuilder(index);
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected text blocks on the page.
+       * A block has a set of lines (collected into paragraphs) that have a common
+       * line-spacing and orientation.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Block blocks = 5;
+       */
+      public com.google.cloud.documentai.v1beta2.Document.Page.BlockOrBuilder getBlocksOrBuilder(
+          int index) {
+        if (blocksBuilder_ == null) {
+          return blocks_.get(index);
+        } else {
+          return blocksBuilder_.getMessageOrBuilder(index);
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected text blocks on the page.
+       * A block has a set of lines (collected into paragraphs) that have a common
+       * line-spacing and orientation.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Block blocks = 5;
+       */
+      public java.util.List<
+              ? extends com.google.cloud.documentai.v1beta2.Document.Page.BlockOrBuilder>
+          getBlocksOrBuilderList() {
+        if (blocksBuilder_ != null) {
+          return blocksBuilder_.getMessageOrBuilderList();
+        } else {
+          return java.util.Collections.unmodifiableList(blocks_);
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected text blocks on the page.
+       * A block has a set of lines (collected into paragraphs) that have a common
+       * line-spacing and orientation.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Block blocks = 5;
+       */
+      public com.google.cloud.documentai.v1beta2.Document.Page.Block.Builder addBlocksBuilder() {
+        return getBlocksFieldBuilder()
+            .addBuilder(
+                com.google.cloud.documentai.v1beta2.Document.Page.Block.getDefaultInstance());
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected text blocks on the page.
+       * A block has a set of lines (collected into paragraphs) that have a common
+       * line-spacing and orientation.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Block blocks = 5;
+       */
+      public com.google.cloud.documentai.v1beta2.Document.Page.Block.Builder addBlocksBuilder(
+          int index) {
+        return getBlocksFieldBuilder()
+            .addBuilder(
+                index,
+                com.google.cloud.documentai.v1beta2.Document.Page.Block.getDefaultInstance());
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected text blocks on the page.
+       * A block has a set of lines (collected into paragraphs) that have a common
+       * line-spacing and orientation.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Block blocks = 5;
+       */
+      public java.util.List
+          getBlocksBuilderList() {
+        return getBlocksFieldBuilder().getBuilderList();
+      }
+
+      private com.google.protobuf.RepeatedFieldBuilderV3<
+              com.google.cloud.documentai.v1beta2.Document.Page.Block,
+              com.google.cloud.documentai.v1beta2.Document.Page.Block.Builder,
+              com.google.cloud.documentai.v1beta2.Document.Page.BlockOrBuilder>
+          getBlocksFieldBuilder() {
+        if (blocksBuilder_ == null) {
+          blocksBuilder_ =
+              new com.google.protobuf.RepeatedFieldBuilderV3<
+                  com.google.cloud.documentai.v1beta2.Document.Page.Block,
+                  com.google.cloud.documentai.v1beta2.Document.Page.Block.Builder,
+                  com.google.cloud.documentai.v1beta2.Document.Page.BlockOrBuilder>(
+                  blocks_, ((bitField0_ & 0x00000040) != 0), getParentForChildren(), isClean());
+          blocks_ = null;
+        }
+        return blocksBuilder_;
+      }
+
+      private java.util.List
+          paragraphs_ = java.util.Collections.emptyList();
+
+      private void ensureParagraphsIsMutable() {
+        if (!((bitField0_ & 0x00000080) != 0)) {
+          paragraphs_ =
+              new java.util.ArrayList(
+                  paragraphs_);
+          bitField0_ |= 0x00000080;
+        }
+      }
+
+      private com.google.protobuf.RepeatedFieldBuilderV3<
+              com.google.cloud.documentai.v1beta2.Document.Page.Paragraph,
+              com.google.cloud.documentai.v1beta2.Document.Page.Paragraph.Builder,
+              com.google.cloud.documentai.v1beta2.Document.Page.ParagraphOrBuilder>
+          paragraphsBuilder_;
+
+      /**
+       *
+       *
+       * 
+       * A list of visually detected text paragraphs on the page.
+       * A collection of lines that a human would perceive as a paragraph.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Paragraph paragraphs = 6;
+       * 
+       */
+      public java.util.List
+          getParagraphsList() {
+        if (paragraphsBuilder_ == null) {
+          return java.util.Collections.unmodifiableList(paragraphs_);
+        } else {
+          return paragraphsBuilder_.getMessageList();
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected text paragraphs on the page.
+       * A collection of lines that a human would perceive as a paragraph.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Paragraph paragraphs = 6;
+       * 
+       */
+      public int getParagraphsCount() {
+        if (paragraphsBuilder_ == null) {
+          return paragraphs_.size();
+        } else {
+          return paragraphsBuilder_.getCount();
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected text paragraphs on the page.
+       * A collection of lines that a human would perceive as a paragraph.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Paragraph paragraphs = 6;
+       * 
+       */
+      public com.google.cloud.documentai.v1beta2.Document.Page.Paragraph getParagraphs(int index) {
+        if (paragraphsBuilder_ == null) {
+          return paragraphs_.get(index);
+        } else {
+          return paragraphsBuilder_.getMessage(index);
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected text paragraphs on the page.
+       * A collection of lines that a human would perceive as a paragraph.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Paragraph paragraphs = 6;
+       * 
+       */
+      public Builder setParagraphs(
+          int index, com.google.cloud.documentai.v1beta2.Document.Page.Paragraph value) {
+        if (paragraphsBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          ensureParagraphsIsMutable();
+          paragraphs_.set(index, value);
+          onChanged();
+        } else {
+          paragraphsBuilder_.setMessage(index, value);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected text paragraphs on the page.
+       * A collection of lines that a human would perceive as a paragraph.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Paragraph paragraphs = 6;
+       * 
+       */
+      public Builder setParagraphs(
+          int index,
+          com.google.cloud.documentai.v1beta2.Document.Page.Paragraph.Builder builderForValue) {
+        if (paragraphsBuilder_ == null) {
+          ensureParagraphsIsMutable();
+          paragraphs_.set(index, builderForValue.build());
+          onChanged();
+        } else {
+          paragraphsBuilder_.setMessage(index, builderForValue.build());
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected text paragraphs on the page.
+       * A collection of lines that a human would perceive as a paragraph.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Paragraph paragraphs = 6;
+       * 
+       */
+      public Builder addParagraphs(
+          com.google.cloud.documentai.v1beta2.Document.Page.Paragraph value) {
+        if (paragraphsBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          ensureParagraphsIsMutable();
+          paragraphs_.add(value);
+          onChanged();
+        } else {
+          paragraphsBuilder_.addMessage(value);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected text paragraphs on the page.
+       * A collection of lines that a human would perceive as a paragraph.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Paragraph paragraphs = 6;
+       * 
+       */
+      public Builder addParagraphs(
+          int index, com.google.cloud.documentai.v1beta2.Document.Page.Paragraph value) {
+        if (paragraphsBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          ensureParagraphsIsMutable();
+          paragraphs_.add(index, value);
+          onChanged();
+        } else {
+          paragraphsBuilder_.addMessage(index, value);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected text paragraphs on the page.
+       * A collection of lines that a human would perceive as a paragraph.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Paragraph paragraphs = 6;
+       * 
+       */
+      public Builder addParagraphs(
+          com.google.cloud.documentai.v1beta2.Document.Page.Paragraph.Builder builderForValue) {
+        if (paragraphsBuilder_ == null) {
+          ensureParagraphsIsMutable();
+          paragraphs_.add(builderForValue.build());
+          onChanged();
+        } else {
+          paragraphsBuilder_.addMessage(builderForValue.build());
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected text paragraphs on the page.
+       * A collection of lines that a human would perceive as a paragraph.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Paragraph paragraphs = 6;
+       * 
+       */
+      public Builder addParagraphs(
+          int index,
+          com.google.cloud.documentai.v1beta2.Document.Page.Paragraph.Builder builderForValue) {
+        if (paragraphsBuilder_ == null) {
+          ensureParagraphsIsMutable();
+          paragraphs_.add(index, builderForValue.build());
+          onChanged();
+        } else {
+          paragraphsBuilder_.addMessage(index, builderForValue.build());
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected text paragraphs on the page.
+       * A collection of lines that a human would perceive as a paragraph.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Paragraph paragraphs = 6;
+       * 
+       */
+      public Builder addAllParagraphs(
+          java.lang.Iterable
+              values) {
+        if (paragraphsBuilder_ == null) {
+          ensureParagraphsIsMutable();
+          com.google.protobuf.AbstractMessageLite.Builder.addAll(values, paragraphs_);
+          onChanged();
+        } else {
+          paragraphsBuilder_.addAllMessages(values);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected text paragraphs on the page.
+       * A collection of lines that a human would perceive as a paragraph.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Paragraph paragraphs = 6;
+       * 
+       */
+      public Builder clearParagraphs() {
+        if (paragraphsBuilder_ == null) {
+          paragraphs_ = java.util.Collections.emptyList();
+          bitField0_ = (bitField0_ & ~0x00000080);
+          onChanged();
+        } else {
+          paragraphsBuilder_.clear();
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected text paragraphs on the page.
+       * A collection of lines that a human would perceive as a paragraph.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Paragraph paragraphs = 6;
+       * 
+       */
+      public Builder removeParagraphs(int index) {
+        if (paragraphsBuilder_ == null) {
+          ensureParagraphsIsMutable();
+          paragraphs_.remove(index);
+          onChanged();
+        } else {
+          paragraphsBuilder_.remove(index);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected text paragraphs on the page.
+       * A collection of lines that a human would perceive as a paragraph.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Paragraph paragraphs = 6;
+       * 
+       */
+      public com.google.cloud.documentai.v1beta2.Document.Page.Paragraph.Builder
+          getParagraphsBuilder(int index) {
+        return getParagraphsFieldBuilder().getBuilder(index);
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected text paragraphs on the page.
+       * A collection of lines that a human would perceive as a paragraph.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Paragraph paragraphs = 6;
+       * 
+       */
+      public com.google.cloud.documentai.v1beta2.Document.Page.ParagraphOrBuilder
+          getParagraphsOrBuilder(int index) {
+        if (paragraphsBuilder_ == null) {
+          return paragraphs_.get(index);
+        } else {
+          return paragraphsBuilder_.getMessageOrBuilder(index);
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected text paragraphs on the page.
+       * A collection of lines that a human would perceive as a paragraph.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Paragraph paragraphs = 6;
+       * 
+       */
+      public java.util.List<
+              ? extends com.google.cloud.documentai.v1beta2.Document.Page.ParagraphOrBuilder>
+          getParagraphsOrBuilderList() {
+        if (paragraphsBuilder_ != null) {
+          return paragraphsBuilder_.getMessageOrBuilderList();
+        } else {
+          return java.util.Collections.unmodifiableList(paragraphs_);
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected text paragraphs on the page.
+       * A collection of lines that a human would perceive as a paragraph.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Paragraph paragraphs = 6;
+       * 
+       */
+      public com.google.cloud.documentai.v1beta2.Document.Page.Paragraph.Builder
+          addParagraphsBuilder() {
+        return getParagraphsFieldBuilder()
+            .addBuilder(
+                com.google.cloud.documentai.v1beta2.Document.Page.Paragraph.getDefaultInstance());
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected text paragraphs on the page.
+       * A collection of lines that a human would perceive as a paragraph.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Paragraph paragraphs = 6;
+       * 
+       */
+      public com.google.cloud.documentai.v1beta2.Document.Page.Paragraph.Builder
+          addParagraphsBuilder(int index) {
+        return getParagraphsFieldBuilder()
+            .addBuilder(
+                index,
+                com.google.cloud.documentai.v1beta2.Document.Page.Paragraph.getDefaultInstance());
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected text paragraphs on the page.
+       * A collection of lines that a human would perceive as a paragraph.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Paragraph paragraphs = 6;
+       * 
+       */
+      public java.util.List
+          getParagraphsBuilderList() {
+        return getParagraphsFieldBuilder().getBuilderList();
+      }
+
+      private com.google.protobuf.RepeatedFieldBuilderV3<
+              com.google.cloud.documentai.v1beta2.Document.Page.Paragraph,
+              com.google.cloud.documentai.v1beta2.Document.Page.Paragraph.Builder,
+              com.google.cloud.documentai.v1beta2.Document.Page.ParagraphOrBuilder>
+          getParagraphsFieldBuilder() {
+        if (paragraphsBuilder_ == null) {
+          paragraphsBuilder_ =
+              new com.google.protobuf.RepeatedFieldBuilderV3<
+                  com.google.cloud.documentai.v1beta2.Document.Page.Paragraph,
+                  com.google.cloud.documentai.v1beta2.Document.Page.Paragraph.Builder,
+                  com.google.cloud.documentai.v1beta2.Document.Page.ParagraphOrBuilder>(
+                  paragraphs_, ((bitField0_ & 0x00000080) != 0), getParentForChildren(), isClean());
+          paragraphs_ = null;
+        }
+        return paragraphsBuilder_;
+      }
+
+      private java.util.List lines_ =
+          java.util.Collections.emptyList();
+
+      private void ensureLinesIsMutable() {
+        if (!((bitField0_ & 0x00000100) != 0)) {
+          lines_ =
+              new java.util.ArrayList(
+                  lines_);
+          bitField0_ |= 0x00000100;
+        }
+      }
+
+      private com.google.protobuf.RepeatedFieldBuilderV3<
+              com.google.cloud.documentai.v1beta2.Document.Page.Line,
+              com.google.cloud.documentai.v1beta2.Document.Page.Line.Builder,
+              com.google.cloud.documentai.v1beta2.Document.Page.LineOrBuilder>
+          linesBuilder_;
+
+      /**
+       *
+       *
+       * 
+       * A list of visually detected text lines on the page.
+       * A collection of tokens that a human would perceive as a line.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Line lines = 7;
+       */
+      public java.util.List getLinesList() {
+        if (linesBuilder_ == null) {
+          return java.util.Collections.unmodifiableList(lines_);
+        } else {
+          return linesBuilder_.getMessageList();
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected text lines on the page.
+       * A collection of tokens that a human would perceive as a line.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Line lines = 7;
+       */
+      public int getLinesCount() {
+        if (linesBuilder_ == null) {
+          return lines_.size();
+        } else {
+          return linesBuilder_.getCount();
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected text lines on the page.
+       * A collection of tokens that a human would perceive as a line.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Line lines = 7;
+       */
+      public com.google.cloud.documentai.v1beta2.Document.Page.Line getLines(int index) {
+        if (linesBuilder_ == null) {
+          return lines_.get(index);
+        } else {
+          return linesBuilder_.getMessage(index);
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected text lines on the page.
+       * A collection of tokens that a human would perceive as a line.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Line lines = 7;
+       */
+      public Builder setLines(
+          int index, com.google.cloud.documentai.v1beta2.Document.Page.Line value) {
+        if (linesBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          ensureLinesIsMutable();
+          lines_.set(index, value);
+          onChanged();
+        } else {
+          linesBuilder_.setMessage(index, value);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected text lines on the page.
+       * A collection of tokens that a human would perceive as a line.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Line lines = 7;
+       */
+      public Builder setLines(
+          int index,
+          com.google.cloud.documentai.v1beta2.Document.Page.Line.Builder builderForValue) {
+        if (linesBuilder_ == null) {
+          ensureLinesIsMutable();
+          lines_.set(index, builderForValue.build());
+          onChanged();
+        } else {
+          linesBuilder_.setMessage(index, builderForValue.build());
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected text lines on the page.
+       * A collection of tokens that a human would perceive as a line.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Line lines = 7;
+       */
+      public Builder addLines(com.google.cloud.documentai.v1beta2.Document.Page.Line value) {
+        if (linesBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          ensureLinesIsMutable();
+          lines_.add(value);
+          onChanged();
+        } else {
+          linesBuilder_.addMessage(value);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected text lines on the page.
+       * A collection of tokens that a human would perceive as a line.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Line lines = 7;
+       */
+      public Builder addLines(
+          int index, com.google.cloud.documentai.v1beta2.Document.Page.Line value) {
+        if (linesBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          ensureLinesIsMutable();
+          lines_.add(index, value);
+          onChanged();
+        } else {
+          linesBuilder_.addMessage(index, value);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected text lines on the page.
+       * A collection of tokens that a human would perceive as a line.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Line lines = 7;
+       */
+      public Builder addLines(
+          com.google.cloud.documentai.v1beta2.Document.Page.Line.Builder builderForValue) {
+        if (linesBuilder_ == null) {
+          ensureLinesIsMutable();
+          lines_.add(builderForValue.build());
+          onChanged();
+        } else {
+          linesBuilder_.addMessage(builderForValue.build());
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected text lines on the page.
+       * A collection of tokens that a human would perceive as a line.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Line lines = 7;
+       */
+      public Builder addLines(
+          int index,
+          com.google.cloud.documentai.v1beta2.Document.Page.Line.Builder builderForValue) {
+        if (linesBuilder_ == null) {
+          ensureLinesIsMutable();
+          lines_.add(index, builderForValue.build());
+          onChanged();
+        } else {
+          linesBuilder_.addMessage(index, builderForValue.build());
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected text lines on the page.
+       * A collection of tokens that a human would perceive as a line.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Line lines = 7;
+       */
+      public Builder addAllLines(
+          java.lang.Iterable
+              values) {
+        if (linesBuilder_ == null) {
+          ensureLinesIsMutable();
+          com.google.protobuf.AbstractMessageLite.Builder.addAll(values, lines_);
+          onChanged();
+        } else {
+          linesBuilder_.addAllMessages(values);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected text lines on the page.
+       * A collection of tokens that a human would perceive as a line.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Line lines = 7;
+       */
+      public Builder clearLines() {
+        if (linesBuilder_ == null) {
+          lines_ = java.util.Collections.emptyList();
+          bitField0_ = (bitField0_ & ~0x00000100);
+          onChanged();
+        } else {
+          linesBuilder_.clear();
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected text lines on the page.
+       * A collection of tokens that a human would perceive as a line.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Line lines = 7;
+       */
+      public Builder removeLines(int index) {
+        if (linesBuilder_ == null) {
+          ensureLinesIsMutable();
+          lines_.remove(index);
+          onChanged();
+        } else {
+          linesBuilder_.remove(index);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected text lines on the page.
+       * A collection of tokens that a human would perceive as a line.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Line lines = 7;
+       */
+      public com.google.cloud.documentai.v1beta2.Document.Page.Line.Builder getLinesBuilder(
+          int index) {
+        return getLinesFieldBuilder().getBuilder(index);
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected text lines on the page.
+       * A collection of tokens that a human would perceive as a line.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Line lines = 7;
+       */
+      public com.google.cloud.documentai.v1beta2.Document.Page.LineOrBuilder getLinesOrBuilder(
+          int index) {
+        if (linesBuilder_ == null) {
+          return lines_.get(index);
+        } else {
+          return linesBuilder_.getMessageOrBuilder(index);
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected text lines on the page.
+       * A collection of tokens that a human would perceive as a line.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Line lines = 7;
+       */
+      public java.util.List<
+              ? extends com.google.cloud.documentai.v1beta2.Document.Page.LineOrBuilder>
+          getLinesOrBuilderList() {
+        if (linesBuilder_ != null) {
+          return linesBuilder_.getMessageOrBuilderList();
+        } else {
+          return java.util.Collections.unmodifiableList(lines_);
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected text lines on the page.
+       * A collection of tokens that a human would perceive as a line.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Line lines = 7;
+       */
+      public com.google.cloud.documentai.v1beta2.Document.Page.Line.Builder addLinesBuilder() {
+        return getLinesFieldBuilder()
+            .addBuilder(
+                com.google.cloud.documentai.v1beta2.Document.Page.Line.getDefaultInstance());
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected text lines on the page.
+       * A collection of tokens that a human would perceive as a line.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Line lines = 7;
+       */
+      public com.google.cloud.documentai.v1beta2.Document.Page.Line.Builder addLinesBuilder(
+          int index) {
+        return getLinesFieldBuilder()
+            .addBuilder(
+                index, com.google.cloud.documentai.v1beta2.Document.Page.Line.getDefaultInstance());
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected text lines on the page.
+       * A collection of tokens that a human would perceive as a line.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Line lines = 7;
+       */
+      public java.util.List
+          getLinesBuilderList() {
+        return getLinesFieldBuilder().getBuilderList();
+      }
+
+      private com.google.protobuf.RepeatedFieldBuilderV3<
+              com.google.cloud.documentai.v1beta2.Document.Page.Line,
+              com.google.cloud.documentai.v1beta2.Document.Page.Line.Builder,
+              com.google.cloud.documentai.v1beta2.Document.Page.LineOrBuilder>
+          getLinesFieldBuilder() {
+        if (linesBuilder_ == null) {
+          linesBuilder_ =
+              new com.google.protobuf.RepeatedFieldBuilderV3<
+                  com.google.cloud.documentai.v1beta2.Document.Page.Line,
+                  com.google.cloud.documentai.v1beta2.Document.Page.Line.Builder,
+                  com.google.cloud.documentai.v1beta2.Document.Page.LineOrBuilder>(
+                  lines_, ((bitField0_ & 0x00000100) != 0), getParentForChildren(), isClean());
+          lines_ = null;
+        }
+        return linesBuilder_;
+      }
+
+      private java.util.List tokens_ =
+          java.util.Collections.emptyList();
+
+      private void ensureTokensIsMutable() {
+        if (!((bitField0_ & 0x00000200) != 0)) {
+          tokens_ =
+              new java.util.ArrayList(
+                  tokens_);
+          bitField0_ |= 0x00000200;
+        }
+      }
+
+      private com.google.protobuf.RepeatedFieldBuilderV3<
+              com.google.cloud.documentai.v1beta2.Document.Page.Token,
+              com.google.cloud.documentai.v1beta2.Document.Page.Token.Builder,
+              com.google.cloud.documentai.v1beta2.Document.Page.TokenOrBuilder>
+          tokensBuilder_;
+
+      /**
+       *
+       *
+       * 
+       * A list of visually detected tokens on the page.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Token tokens = 8;
+       */
+      public java.util.List
+          getTokensList() {
+        if (tokensBuilder_ == null) {
+          return java.util.Collections.unmodifiableList(tokens_);
+        } else {
+          return tokensBuilder_.getMessageList();
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected tokens on the page.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Token tokens = 8;
+       */
+      public int getTokensCount() {
+        if (tokensBuilder_ == null) {
+          return tokens_.size();
+        } else {
+          return tokensBuilder_.getCount();
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected tokens on the page.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Token tokens = 8;
+       */
+      public com.google.cloud.documentai.v1beta2.Document.Page.Token getTokens(int index) {
+        if (tokensBuilder_ == null) {
+          return tokens_.get(index);
+        } else {
+          return tokensBuilder_.getMessage(index);
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected tokens on the page.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Token tokens = 8;
+       */
+      public Builder setTokens(
+          int index, com.google.cloud.documentai.v1beta2.Document.Page.Token value) {
+        if (tokensBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          ensureTokensIsMutable();
+          tokens_.set(index, value);
+          onChanged();
+        } else {
+          tokensBuilder_.setMessage(index, value);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected tokens on the page.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Token tokens = 8;
+       */
+      public Builder setTokens(
+          int index,
+          com.google.cloud.documentai.v1beta2.Document.Page.Token.Builder builderForValue) {
+        if (tokensBuilder_ == null) {
+          ensureTokensIsMutable();
+          tokens_.set(index, builderForValue.build());
+          onChanged();
+        } else {
+          tokensBuilder_.setMessage(index, builderForValue.build());
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected tokens on the page.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Token tokens = 8;
+       */
+      public Builder addTokens(com.google.cloud.documentai.v1beta2.Document.Page.Token value) {
+        if (tokensBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          ensureTokensIsMutable();
+          tokens_.add(value);
+          onChanged();
+        } else {
+          tokensBuilder_.addMessage(value);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected tokens on the page.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Token tokens = 8;
+       */
+      public Builder addTokens(
+          int index, com.google.cloud.documentai.v1beta2.Document.Page.Token value) {
+        if (tokensBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          ensureTokensIsMutable();
+          tokens_.add(index, value);
+          onChanged();
+        } else {
+          tokensBuilder_.addMessage(index, value);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected tokens on the page.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Token tokens = 8;
+       */
+      public Builder addTokens(
+          com.google.cloud.documentai.v1beta2.Document.Page.Token.Builder builderForValue) {
+        if (tokensBuilder_ == null) {
+          ensureTokensIsMutable();
+          tokens_.add(builderForValue.build());
+          onChanged();
+        } else {
+          tokensBuilder_.addMessage(builderForValue.build());
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected tokens on the page.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Token tokens = 8;
+       */
+      public Builder addTokens(
+          int index,
+          com.google.cloud.documentai.v1beta2.Document.Page.Token.Builder builderForValue) {
+        if (tokensBuilder_ == null) {
+          ensureTokensIsMutable();
+          tokens_.add(index, builderForValue.build());
+          onChanged();
+        } else {
+          tokensBuilder_.addMessage(index, builderForValue.build());
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected tokens on the page.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Token tokens = 8;
+       */
+      public Builder addAllTokens(
+          java.lang.Iterable
+              values) {
+        if (tokensBuilder_ == null) {
+          ensureTokensIsMutable();
+          com.google.protobuf.AbstractMessageLite.Builder.addAll(values, tokens_);
+          onChanged();
+        } else {
+          tokensBuilder_.addAllMessages(values);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected tokens on the page.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Token tokens = 8;
+       */
+      public Builder clearTokens() {
+        if (tokensBuilder_ == null) {
+          tokens_ = java.util.Collections.emptyList();
+          bitField0_ = (bitField0_ & ~0x00000200);
+          onChanged();
+        } else {
+          tokensBuilder_.clear();
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected tokens on the page.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Token tokens = 8;
+       */
+      public Builder removeTokens(int index) {
+        if (tokensBuilder_ == null) {
+          ensureTokensIsMutable();
+          tokens_.remove(index);
+          onChanged();
+        } else {
+          tokensBuilder_.remove(index);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected tokens on the page.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Token tokens = 8;
+       */
+      public com.google.cloud.documentai.v1beta2.Document.Page.Token.Builder getTokensBuilder(
+          int index) {
+        return getTokensFieldBuilder().getBuilder(index);
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected tokens on the page.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Token tokens = 8;
+       */
+      public com.google.cloud.documentai.v1beta2.Document.Page.TokenOrBuilder getTokensOrBuilder(
+          int index) {
+        if (tokensBuilder_ == null) {
+          return tokens_.get(index);
+        } else {
+          return tokensBuilder_.getMessageOrBuilder(index);
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected tokens on the page.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Token tokens = 8;
+       */
+      public java.util.List<
+              ? extends com.google.cloud.documentai.v1beta2.Document.Page.TokenOrBuilder>
+          getTokensOrBuilderList() {
+        if (tokensBuilder_ != null) {
+          return tokensBuilder_.getMessageOrBuilderList();
+        } else {
+          return java.util.Collections.unmodifiableList(tokens_);
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected tokens on the page.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Token tokens = 8;
+       */
+      public com.google.cloud.documentai.v1beta2.Document.Page.Token.Builder addTokensBuilder() {
+        return getTokensFieldBuilder()
+            .addBuilder(
+                com.google.cloud.documentai.v1beta2.Document.Page.Token.getDefaultInstance());
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected tokens on the page.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Token tokens = 8;
+       */
+      public com.google.cloud.documentai.v1beta2.Document.Page.Token.Builder addTokensBuilder(
+          int index) {
+        return getTokensFieldBuilder()
+            .addBuilder(
+                index,
+                com.google.cloud.documentai.v1beta2.Document.Page.Token.getDefaultInstance());
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected tokens on the page.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Token tokens = 8;
+       */
+      public java.util.List
+          getTokensBuilderList() {
+        return getTokensFieldBuilder().getBuilderList();
+      }
+
+      private com.google.protobuf.RepeatedFieldBuilderV3<
+              com.google.cloud.documentai.v1beta2.Document.Page.Token,
+              com.google.cloud.documentai.v1beta2.Document.Page.Token.Builder,
+              com.google.cloud.documentai.v1beta2.Document.Page.TokenOrBuilder>
+          getTokensFieldBuilder() {
+        if (tokensBuilder_ == null) {
+          tokensBuilder_ =
+              new com.google.protobuf.RepeatedFieldBuilderV3<
+                  com.google.cloud.documentai.v1beta2.Document.Page.Token,
+                  com.google.cloud.documentai.v1beta2.Document.Page.Token.Builder,
+                  com.google.cloud.documentai.v1beta2.Document.Page.TokenOrBuilder>(
+                  tokens_, ((bitField0_ & 0x00000200) != 0), getParentForChildren(), isClean());
+          tokens_ = null;
+        }
+        return tokensBuilder_;
+      }
+
+      private java.util.List
+          visualElements_ = java.util.Collections.emptyList();
+
+      private void ensureVisualElementsIsMutable() {
+        if (!((bitField0_ & 0x00000400) != 0)) {
+          visualElements_ =
+              new java.util.ArrayList<
+                  com.google.cloud.documentai.v1beta2.Document.Page.VisualElement>(visualElements_);
+          bitField0_ |= 0x00000400;
+        }
+      }
+
+      private com.google.protobuf.RepeatedFieldBuilderV3<
+              com.google.cloud.documentai.v1beta2.Document.Page.VisualElement,
+              com.google.cloud.documentai.v1beta2.Document.Page.VisualElement.Builder,
+              com.google.cloud.documentai.v1beta2.Document.Page.VisualElementOrBuilder>
+          visualElementsBuilder_;
+
+      /**
+       *
+       *
+       * 
+       * A list of detected non-text visual elements e.g. checkbox,
+       * signature etc. on the page.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.VisualElement visual_elements = 9;
+       * 
+       */
+      public java.util.List
+          getVisualElementsList() {
+        if (visualElementsBuilder_ == null) {
+          return java.util.Collections.unmodifiableList(visualElements_);
+        } else {
+          return visualElementsBuilder_.getMessageList();
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * A list of detected non-text visual elements e.g. checkbox,
+       * signature etc. on the page.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.VisualElement visual_elements = 9;
+       * 
+       */
+      public int getVisualElementsCount() {
+        if (visualElementsBuilder_ == null) {
+          return visualElements_.size();
+        } else {
+          return visualElementsBuilder_.getCount();
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * A list of detected non-text visual elements e.g. checkbox,
+       * signature etc. on the page.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.VisualElement visual_elements = 9;
+       * 
+       */
+      public com.google.cloud.documentai.v1beta2.Document.Page.VisualElement getVisualElements(
+          int index) {
+        if (visualElementsBuilder_ == null) {
+          return visualElements_.get(index);
+        } else {
+          return visualElementsBuilder_.getMessage(index);
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * A list of detected non-text visual elements e.g. checkbox,
+       * signature etc. on the page.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.VisualElement visual_elements = 9;
+       * 
+       */
+      public Builder setVisualElements(
+          int index, com.google.cloud.documentai.v1beta2.Document.Page.VisualElement value) {
+        if (visualElementsBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          ensureVisualElementsIsMutable();
+          visualElements_.set(index, value);
+          onChanged();
+        } else {
+          visualElementsBuilder_.setMessage(index, value);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of detected non-text visual elements e.g. checkbox,
+       * signature etc. on the page.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.VisualElement visual_elements = 9;
+       * 
+       */
+      public Builder setVisualElements(
+          int index,
+          com.google.cloud.documentai.v1beta2.Document.Page.VisualElement.Builder builderForValue) {
+        if (visualElementsBuilder_ == null) {
+          ensureVisualElementsIsMutable();
+          visualElements_.set(index, builderForValue.build());
+          onChanged();
+        } else {
+          visualElementsBuilder_.setMessage(index, builderForValue.build());
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of detected non-text visual elements e.g. checkbox,
+       * signature etc. on the page.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.VisualElement visual_elements = 9;
+       * 
+       */
+      public Builder addVisualElements(
+          com.google.cloud.documentai.v1beta2.Document.Page.VisualElement value) {
+        if (visualElementsBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          ensureVisualElementsIsMutable();
+          visualElements_.add(value);
+          onChanged();
+        } else {
+          visualElementsBuilder_.addMessage(value);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of detected non-text visual elements e.g. checkbox,
+       * signature etc. on the page.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.VisualElement visual_elements = 9;
+       * 
+       */
+      public Builder addVisualElements(
+          int index, com.google.cloud.documentai.v1beta2.Document.Page.VisualElement value) {
+        if (visualElementsBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          ensureVisualElementsIsMutable();
+          visualElements_.add(index, value);
+          onChanged();
+        } else {
+          visualElementsBuilder_.addMessage(index, value);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of detected non-text visual elements e.g. checkbox,
+       * signature etc. on the page.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.VisualElement visual_elements = 9;
+       * 
+       */
+      public Builder addVisualElements(
+          com.google.cloud.documentai.v1beta2.Document.Page.VisualElement.Builder builderForValue) {
+        if (visualElementsBuilder_ == null) {
+          ensureVisualElementsIsMutable();
+          visualElements_.add(builderForValue.build());
+          onChanged();
+        } else {
+          visualElementsBuilder_.addMessage(builderForValue.build());
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of detected non-text visual elements e.g. checkbox,
+       * signature etc. on the page.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.VisualElement visual_elements = 9;
+       * 
+       */
+      public Builder addVisualElements(
+          int index,
+          com.google.cloud.documentai.v1beta2.Document.Page.VisualElement.Builder builderForValue) {
+        if (visualElementsBuilder_ == null) {
+          ensureVisualElementsIsMutable();
+          visualElements_.add(index, builderForValue.build());
+          onChanged();
+        } else {
+          visualElementsBuilder_.addMessage(index, builderForValue.build());
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of detected non-text visual elements e.g. checkbox,
+       * signature etc. on the page.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.VisualElement visual_elements = 9;
+       * 
+       */
+      public Builder addAllVisualElements(
+          java.lang.Iterable<
+                  ? extends com.google.cloud.documentai.v1beta2.Document.Page.VisualElement>
+              values) {
+        if (visualElementsBuilder_ == null) {
+          ensureVisualElementsIsMutable();
+          com.google.protobuf.AbstractMessageLite.Builder.addAll(values, visualElements_);
+          onChanged();
+        } else {
+          visualElementsBuilder_.addAllMessages(values);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of detected non-text visual elements e.g. checkbox,
+       * signature etc. on the page.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.VisualElement visual_elements = 9;
+       * 
+       */
+      public Builder clearVisualElements() {
+        if (visualElementsBuilder_ == null) {
+          visualElements_ = java.util.Collections.emptyList();
+          bitField0_ = (bitField0_ & ~0x00000400);
+          onChanged();
+        } else {
+          visualElementsBuilder_.clear();
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of detected non-text visual elements e.g. checkbox,
+       * signature etc. on the page.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.VisualElement visual_elements = 9;
+       * 
+       */
+      public Builder removeVisualElements(int index) {
+        if (visualElementsBuilder_ == null) {
+          ensureVisualElementsIsMutable();
+          visualElements_.remove(index);
+          onChanged();
+        } else {
+          visualElementsBuilder_.remove(index);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of detected non-text visual elements e.g. checkbox,
+       * signature etc. on the page.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.VisualElement visual_elements = 9;
+       * 
+       */
+      public com.google.cloud.documentai.v1beta2.Document.Page.VisualElement.Builder
+          getVisualElementsBuilder(int index) {
+        return getVisualElementsFieldBuilder().getBuilder(index);
+      }
+      /**
+       *
+       *
+       * 
+       * A list of detected non-text visual elements e.g. checkbox,
+       * signature etc. on the page.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.VisualElement visual_elements = 9;
+       * 
+       */
+      public com.google.cloud.documentai.v1beta2.Document.Page.VisualElementOrBuilder
+          getVisualElementsOrBuilder(int index) {
+        if (visualElementsBuilder_ == null) {
+          return visualElements_.get(index);
+        } else {
+          return visualElementsBuilder_.getMessageOrBuilder(index);
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * A list of detected non-text visual elements e.g. checkbox,
+       * signature etc. on the page.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.VisualElement visual_elements = 9;
+       * 
+       */
+      public java.util.List<
+              ? extends com.google.cloud.documentai.v1beta2.Document.Page.VisualElementOrBuilder>
+          getVisualElementsOrBuilderList() {
+        if (visualElementsBuilder_ != null) {
+          return visualElementsBuilder_.getMessageOrBuilderList();
+        } else {
+          return java.util.Collections.unmodifiableList(visualElements_);
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * A list of detected non-text visual elements e.g. checkbox,
+       * signature etc. on the page.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.VisualElement visual_elements = 9;
+       * 
+       */
+      public com.google.cloud.documentai.v1beta2.Document.Page.VisualElement.Builder
+          addVisualElementsBuilder() {
+        return getVisualElementsFieldBuilder()
+            .addBuilder(
+                com.google.cloud.documentai.v1beta2.Document.Page.VisualElement
+                    .getDefaultInstance());
+      }
+      /**
+       *
+       *
+       * 
+       * A list of detected non-text visual elements e.g. checkbox,
+       * signature etc. on the page.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.VisualElement visual_elements = 9;
+       * 
+       */
+      public com.google.cloud.documentai.v1beta2.Document.Page.VisualElement.Builder
+          addVisualElementsBuilder(int index) {
+        return getVisualElementsFieldBuilder()
+            .addBuilder(
+                index,
+                com.google.cloud.documentai.v1beta2.Document.Page.VisualElement
+                    .getDefaultInstance());
+      }
+      /**
+       *
+       *
+       * 
+       * A list of detected non-text visual elements e.g. checkbox,
+       * signature etc. on the page.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.VisualElement visual_elements = 9;
+       * 
+       */
+      public java.util.List
+          getVisualElementsBuilderList() {
+        return getVisualElementsFieldBuilder().getBuilderList();
+      }
+
+      private com.google.protobuf.RepeatedFieldBuilderV3<
+              com.google.cloud.documentai.v1beta2.Document.Page.VisualElement,
+              com.google.cloud.documentai.v1beta2.Document.Page.VisualElement.Builder,
+              com.google.cloud.documentai.v1beta2.Document.Page.VisualElementOrBuilder>
+          getVisualElementsFieldBuilder() {
+        if (visualElementsBuilder_ == null) {
+          visualElementsBuilder_ =
+              new com.google.protobuf.RepeatedFieldBuilderV3<
+                  com.google.cloud.documentai.v1beta2.Document.Page.VisualElement,
+                  com.google.cloud.documentai.v1beta2.Document.Page.VisualElement.Builder,
+                  com.google.cloud.documentai.v1beta2.Document.Page.VisualElementOrBuilder>(
+                  visualElements_,
+                  ((bitField0_ & 0x00000400) != 0),
+                  getParentForChildren(),
+                  isClean());
+          visualElements_ = null;
+        }
+        return visualElementsBuilder_;
+      }
+
+      private java.util.List tables_ =
+          java.util.Collections.emptyList();
+
+      private void ensureTablesIsMutable() {
+        if (!((bitField0_ & 0x00000800) != 0)) {
+          tables_ =
+              new java.util.ArrayList(
+                  tables_);
+          bitField0_ |= 0x00000800;
+        }
+      }
+
+      private com.google.protobuf.RepeatedFieldBuilderV3<
+              com.google.cloud.documentai.v1beta2.Document.Page.Table,
+              com.google.cloud.documentai.v1beta2.Document.Page.Table.Builder,
+              com.google.cloud.documentai.v1beta2.Document.Page.TableOrBuilder>
+          tablesBuilder_;
+
+      /**
+       *
+       *
+       * 
+       * A list of visually detected tables on the page.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Table tables = 10;
+       */
+      public java.util.List
+          getTablesList() {
+        if (tablesBuilder_ == null) {
+          return java.util.Collections.unmodifiableList(tables_);
+        } else {
+          return tablesBuilder_.getMessageList();
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected tables on the page.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Table tables = 10;
+       */
+      public int getTablesCount() {
+        if (tablesBuilder_ == null) {
+          return tables_.size();
+        } else {
+          return tablesBuilder_.getCount();
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected tables on the page.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Table tables = 10;
+       */
+      public com.google.cloud.documentai.v1beta2.Document.Page.Table getTables(int index) {
+        if (tablesBuilder_ == null) {
+          return tables_.get(index);
+        } else {
+          return tablesBuilder_.getMessage(index);
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected tables on the page.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Table tables = 10;
+       */
+      public Builder setTables(
+          int index, com.google.cloud.documentai.v1beta2.Document.Page.Table value) {
+        if (tablesBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          ensureTablesIsMutable();
+          tables_.set(index, value);
+          onChanged();
+        } else {
+          tablesBuilder_.setMessage(index, value);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected tables on the page.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Table tables = 10;
+       */
+      public Builder setTables(
+          int index,
+          com.google.cloud.documentai.v1beta2.Document.Page.Table.Builder builderForValue) {
+        if (tablesBuilder_ == null) {
+          ensureTablesIsMutable();
+          tables_.set(index, builderForValue.build());
+          onChanged();
+        } else {
+          tablesBuilder_.setMessage(index, builderForValue.build());
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected tables on the page.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Table tables = 10;
+       */
+      public Builder addTables(com.google.cloud.documentai.v1beta2.Document.Page.Table value) {
+        if (tablesBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          ensureTablesIsMutable();
+          tables_.add(value);
+          onChanged();
+        } else {
+          tablesBuilder_.addMessage(value);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected tables on the page.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Table tables = 10;
+       */
+      public Builder addTables(
+          int index, com.google.cloud.documentai.v1beta2.Document.Page.Table value) {
+        if (tablesBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          ensureTablesIsMutable();
+          tables_.add(index, value);
+          onChanged();
+        } else {
+          tablesBuilder_.addMessage(index, value);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected tables on the page.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Table tables = 10;
+       */
+      public Builder addTables(
+          com.google.cloud.documentai.v1beta2.Document.Page.Table.Builder builderForValue) {
+        if (tablesBuilder_ == null) {
+          ensureTablesIsMutable();
+          tables_.add(builderForValue.build());
+          onChanged();
+        } else {
+          tablesBuilder_.addMessage(builderForValue.build());
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected tables on the page.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Table tables = 10;
+       */
+      public Builder addTables(
+          int index,
+          com.google.cloud.documentai.v1beta2.Document.Page.Table.Builder builderForValue) {
+        if (tablesBuilder_ == null) {
+          ensureTablesIsMutable();
+          tables_.add(index, builderForValue.build());
+          onChanged();
+        } else {
+          tablesBuilder_.addMessage(index, builderForValue.build());
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected tables on the page.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Table tables = 10;
+       */
+      public Builder addAllTables(
+          java.lang.Iterable
+              values) {
+        if (tablesBuilder_ == null) {
+          ensureTablesIsMutable();
+          com.google.protobuf.AbstractMessageLite.Builder.addAll(values, tables_);
+          onChanged();
+        } else {
+          tablesBuilder_.addAllMessages(values);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected tables on the page.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Table tables = 10;
+       */
+      public Builder clearTables() {
+        if (tablesBuilder_ == null) {
+          tables_ = java.util.Collections.emptyList();
+          bitField0_ = (bitField0_ & ~0x00000800);
+          onChanged();
+        } else {
+          tablesBuilder_.clear();
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected tables on the page.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Table tables = 10;
+       */
+      public Builder removeTables(int index) {
+        if (tablesBuilder_ == null) {
+          ensureTablesIsMutable();
+          tables_.remove(index);
+          onChanged();
+        } else {
+          tablesBuilder_.remove(index);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected tables on the page.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Table tables = 10;
+       */
+      public com.google.cloud.documentai.v1beta2.Document.Page.Table.Builder getTablesBuilder(
+          int index) {
+        return getTablesFieldBuilder().getBuilder(index);
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected tables on the page.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Table tables = 10;
+       */
+      public com.google.cloud.documentai.v1beta2.Document.Page.TableOrBuilder getTablesOrBuilder(
+          int index) {
+        if (tablesBuilder_ == null) {
+          return tables_.get(index);
+        } else {
+          return tablesBuilder_.getMessageOrBuilder(index);
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected tables on the page.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Table tables = 10;
+       */
+      public java.util.List<
+              ? extends com.google.cloud.documentai.v1beta2.Document.Page.TableOrBuilder>
+          getTablesOrBuilderList() {
+        if (tablesBuilder_ != null) {
+          return tablesBuilder_.getMessageOrBuilderList();
+        } else {
+          return java.util.Collections.unmodifiableList(tables_);
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected tables on the page.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Table tables = 10;
+       */
+      public com.google.cloud.documentai.v1beta2.Document.Page.Table.Builder addTablesBuilder() {
+        return getTablesFieldBuilder()
+            .addBuilder(
+                com.google.cloud.documentai.v1beta2.Document.Page.Table.getDefaultInstance());
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected tables on the page.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Table tables = 10;
+       */
+      public com.google.cloud.documentai.v1beta2.Document.Page.Table.Builder addTablesBuilder(
+          int index) {
+        return getTablesFieldBuilder()
+            .addBuilder(
+                index,
+                com.google.cloud.documentai.v1beta2.Document.Page.Table.getDefaultInstance());
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected tables on the page.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Table tables = 10;
+       */
+      public java.util.List
+          getTablesBuilderList() {
+        return getTablesFieldBuilder().getBuilderList();
+      }
+
+      private com.google.protobuf.RepeatedFieldBuilderV3<
+              com.google.cloud.documentai.v1beta2.Document.Page.Table,
+              com.google.cloud.documentai.v1beta2.Document.Page.Table.Builder,
+              com.google.cloud.documentai.v1beta2.Document.Page.TableOrBuilder>
+          getTablesFieldBuilder() {
+        if (tablesBuilder_ == null) {
+          tablesBuilder_ =
+              new com.google.protobuf.RepeatedFieldBuilderV3<
+                  com.google.cloud.documentai.v1beta2.Document.Page.Table,
+                  com.google.cloud.documentai.v1beta2.Document.Page.Table.Builder,
+                  com.google.cloud.documentai.v1beta2.Document.Page.TableOrBuilder>(
+                  tables_, ((bitField0_ & 0x00000800) != 0), getParentForChildren(), isClean());
+          tables_ = null;
+        }
+        return tablesBuilder_;
+      }
+
+      private java.util.List
+          formFields_ = java.util.Collections.emptyList();
+
+      private void ensureFormFieldsIsMutable() {
+        if (!((bitField0_ & 0x00001000) != 0)) {
+          formFields_ =
+              new java.util.ArrayList(
+                  formFields_);
+          bitField0_ |= 0x00001000;
+        }
+      }
+
+      private com.google.protobuf.RepeatedFieldBuilderV3<
+              com.google.cloud.documentai.v1beta2.Document.Page.FormField,
+              com.google.cloud.documentai.v1beta2.Document.Page.FormField.Builder,
+              com.google.cloud.documentai.v1beta2.Document.Page.FormFieldOrBuilder>
+          formFieldsBuilder_;
+
+      /**
+       *
+       *
+       * 
+       * A list of visually detected form fields on the page.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.FormField form_fields = 11;
+       * 
+       */
+      public java.util.List
+          getFormFieldsList() {
+        if (formFieldsBuilder_ == null) {
+          return java.util.Collections.unmodifiableList(formFields_);
+        } else {
+          return formFieldsBuilder_.getMessageList();
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected form fields on the page.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.FormField form_fields = 11;
+       * 
+       */
+      public int getFormFieldsCount() {
+        if (formFieldsBuilder_ == null) {
+          return formFields_.size();
+        } else {
+          return formFieldsBuilder_.getCount();
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected form fields on the page.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.FormField form_fields = 11;
+       * 
+       */
+      public com.google.cloud.documentai.v1beta2.Document.Page.FormField getFormFields(int index) {
+        if (formFieldsBuilder_ == null) {
+          return formFields_.get(index);
+        } else {
+          return formFieldsBuilder_.getMessage(index);
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected form fields on the page.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.FormField form_fields = 11;
+       * 
+       */
+      public Builder setFormFields(
+          int index, com.google.cloud.documentai.v1beta2.Document.Page.FormField value) {
+        if (formFieldsBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          ensureFormFieldsIsMutable();
+          formFields_.set(index, value);
+          onChanged();
+        } else {
+          formFieldsBuilder_.setMessage(index, value);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected form fields on the page.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.FormField form_fields = 11;
+       * 
+       */
+      public Builder setFormFields(
+          int index,
+          com.google.cloud.documentai.v1beta2.Document.Page.FormField.Builder builderForValue) {
+        if (formFieldsBuilder_ == null) {
+          ensureFormFieldsIsMutable();
+          formFields_.set(index, builderForValue.build());
+          onChanged();
+        } else {
+          formFieldsBuilder_.setMessage(index, builderForValue.build());
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected form fields on the page.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.FormField form_fields = 11;
+       * 
+       */
+      public Builder addFormFields(
+          com.google.cloud.documentai.v1beta2.Document.Page.FormField value) {
+        if (formFieldsBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          ensureFormFieldsIsMutable();
+          formFields_.add(value);
+          onChanged();
+        } else {
+          formFieldsBuilder_.addMessage(value);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected form fields on the page.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.FormField form_fields = 11;
+       * 
+       */
+      public Builder addFormFields(
+          int index, com.google.cloud.documentai.v1beta2.Document.Page.FormField value) {
+        if (formFieldsBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          ensureFormFieldsIsMutable();
+          formFields_.add(index, value);
+          onChanged();
+        } else {
+          formFieldsBuilder_.addMessage(index, value);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected form fields on the page.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.FormField form_fields = 11;
+       * 
+       */
+      public Builder addFormFields(
+          com.google.cloud.documentai.v1beta2.Document.Page.FormField.Builder builderForValue) {
+        if (formFieldsBuilder_ == null) {
+          ensureFormFieldsIsMutable();
+          formFields_.add(builderForValue.build());
+          onChanged();
+        } else {
+          formFieldsBuilder_.addMessage(builderForValue.build());
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected form fields on the page.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.FormField form_fields = 11;
+       * 
+       */
+      public Builder addFormFields(
+          int index,
+          com.google.cloud.documentai.v1beta2.Document.Page.FormField.Builder builderForValue) {
+        if (formFieldsBuilder_ == null) {
+          ensureFormFieldsIsMutable();
+          formFields_.add(index, builderForValue.build());
+          onChanged();
+        } else {
+          formFieldsBuilder_.addMessage(index, builderForValue.build());
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected form fields on the page.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.FormField form_fields = 11;
+       * 
+       */
+      public Builder addAllFormFields(
+          java.lang.Iterable
+              values) {
+        if (formFieldsBuilder_ == null) {
+          ensureFormFieldsIsMutable();
+          com.google.protobuf.AbstractMessageLite.Builder.addAll(values, formFields_);
+          onChanged();
+        } else {
+          formFieldsBuilder_.addAllMessages(values);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected form fields on the page.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.FormField form_fields = 11;
+       * 
+       */
+      public Builder clearFormFields() {
+        if (formFieldsBuilder_ == null) {
+          formFields_ = java.util.Collections.emptyList();
+          bitField0_ = (bitField0_ & ~0x00001000);
+          onChanged();
+        } else {
+          formFieldsBuilder_.clear();
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected form fields on the page.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.FormField form_fields = 11;
+       * 
+       */
+      public Builder removeFormFields(int index) {
+        if (formFieldsBuilder_ == null) {
+          ensureFormFieldsIsMutable();
+          formFields_.remove(index);
+          onChanged();
+        } else {
+          formFieldsBuilder_.remove(index);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected form fields on the page.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.FormField form_fields = 11;
+       * 
+       */
+      public com.google.cloud.documentai.v1beta2.Document.Page.FormField.Builder
+          getFormFieldsBuilder(int index) {
+        return getFormFieldsFieldBuilder().getBuilder(index);
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected form fields on the page.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.FormField form_fields = 11;
+       * 
+       */
+      public com.google.cloud.documentai.v1beta2.Document.Page.FormFieldOrBuilder
+          getFormFieldsOrBuilder(int index) {
+        if (formFieldsBuilder_ == null) {
+          return formFields_.get(index);
+        } else {
+          return formFieldsBuilder_.getMessageOrBuilder(index);
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected form fields on the page.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.FormField form_fields = 11;
+       * 
+       */
+      public java.util.List<
+              ? extends com.google.cloud.documentai.v1beta2.Document.Page.FormFieldOrBuilder>
+          getFormFieldsOrBuilderList() {
+        if (formFieldsBuilder_ != null) {
+          return formFieldsBuilder_.getMessageOrBuilderList();
+        } else {
+          return java.util.Collections.unmodifiableList(formFields_);
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected form fields on the page.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.FormField form_fields = 11;
+       * 
+       */
+      public com.google.cloud.documentai.v1beta2.Document.Page.FormField.Builder
+          addFormFieldsBuilder() {
+        return getFormFieldsFieldBuilder()
+            .addBuilder(
+                com.google.cloud.documentai.v1beta2.Document.Page.FormField.getDefaultInstance());
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected form fields on the page.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.FormField form_fields = 11;
+       * 
+       */
+      public com.google.cloud.documentai.v1beta2.Document.Page.FormField.Builder
+          addFormFieldsBuilder(int index) {
+        return getFormFieldsFieldBuilder()
+            .addBuilder(
+                index,
+                com.google.cloud.documentai.v1beta2.Document.Page.FormField.getDefaultInstance());
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected form fields on the page.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.FormField form_fields = 11;
+       * 
+       */
+      public java.util.List
+          getFormFieldsBuilderList() {
+        return getFormFieldsFieldBuilder().getBuilderList();
+      }
+
+      private com.google.protobuf.RepeatedFieldBuilderV3<
+              com.google.cloud.documentai.v1beta2.Document.Page.FormField,
+              com.google.cloud.documentai.v1beta2.Document.Page.FormField.Builder,
+              com.google.cloud.documentai.v1beta2.Document.Page.FormFieldOrBuilder>
+          getFormFieldsFieldBuilder() {
+        if (formFieldsBuilder_ == null) {
+          formFieldsBuilder_ =
+              new com.google.protobuf.RepeatedFieldBuilderV3<
+                  com.google.cloud.documentai.v1beta2.Document.Page.FormField,
+                  com.google.cloud.documentai.v1beta2.Document.Page.FormField.Builder,
+                  com.google.cloud.documentai.v1beta2.Document.Page.FormFieldOrBuilder>(
+                  formFields_, ((bitField0_ & 0x00001000) != 0), getParentForChildren(), isClean());
+          formFields_ = null;
+        }
+        return formFieldsBuilder_;
+      }
+
+      private java.util.List symbols_ =
+          java.util.Collections.emptyList();
+
+      private void ensureSymbolsIsMutable() {
+        if (!((bitField0_ & 0x00002000) != 0)) {
+          symbols_ =
+              new java.util.ArrayList(
+                  symbols_);
+          bitField0_ |= 0x00002000;
+        }
+      }
+
+      private com.google.protobuf.RepeatedFieldBuilderV3<
+              com.google.cloud.documentai.v1beta2.Document.Page.Symbol,
+              com.google.cloud.documentai.v1beta2.Document.Page.Symbol.Builder,
+              com.google.cloud.documentai.v1beta2.Document.Page.SymbolOrBuilder>
+          symbolsBuilder_;
+
+      /**
+       *
+       *
+       * 
+       * A list of visually detected symbols on the page.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Symbol symbols = 12;
+       */
+      public java.util.List
+          getSymbolsList() {
+        if (symbolsBuilder_ == null) {
+          return java.util.Collections.unmodifiableList(symbols_);
+        } else {
+          return symbolsBuilder_.getMessageList();
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected symbols on the page.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Symbol symbols = 12;
+       */
+      public int getSymbolsCount() {
+        if (symbolsBuilder_ == null) {
+          return symbols_.size();
+        } else {
+          return symbolsBuilder_.getCount();
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected symbols on the page.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Symbol symbols = 12;
+       */
+      public com.google.cloud.documentai.v1beta2.Document.Page.Symbol getSymbols(int index) {
+        if (symbolsBuilder_ == null) {
+          return symbols_.get(index);
+        } else {
+          return symbolsBuilder_.getMessage(index);
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected symbols on the page.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Symbol symbols = 12;
+       */
+      public Builder setSymbols(
+          int index, com.google.cloud.documentai.v1beta2.Document.Page.Symbol value) {
+        if (symbolsBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          ensureSymbolsIsMutable();
+          symbols_.set(index, value);
+          onChanged();
+        } else {
+          symbolsBuilder_.setMessage(index, value);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected symbols on the page.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Symbol symbols = 12;
+       */
+      public Builder setSymbols(
+          int index,
+          com.google.cloud.documentai.v1beta2.Document.Page.Symbol.Builder builderForValue) {
+        if (symbolsBuilder_ == null) {
+          ensureSymbolsIsMutable();
+          symbols_.set(index, builderForValue.build());
+          onChanged();
+        } else {
+          symbolsBuilder_.setMessage(index, builderForValue.build());
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected symbols on the page.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Symbol symbols = 12;
+       */
+      public Builder addSymbols(com.google.cloud.documentai.v1beta2.Document.Page.Symbol value) {
+        if (symbolsBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          ensureSymbolsIsMutable();
+          symbols_.add(value);
+          onChanged();
+        } else {
+          symbolsBuilder_.addMessage(value);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected symbols on the page.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Symbol symbols = 12;
+       */
+      public Builder addSymbols(
+          int index, com.google.cloud.documentai.v1beta2.Document.Page.Symbol value) {
+        if (symbolsBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          ensureSymbolsIsMutable();
+          symbols_.add(index, value);
+          onChanged();
+        } else {
+          symbolsBuilder_.addMessage(index, value);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected symbols on the page.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Symbol symbols = 12;
+       */
+      public Builder addSymbols(
+          com.google.cloud.documentai.v1beta2.Document.Page.Symbol.Builder builderForValue) {
+        if (symbolsBuilder_ == null) {
+          ensureSymbolsIsMutable();
+          symbols_.add(builderForValue.build());
+          onChanged();
+        } else {
+          symbolsBuilder_.addMessage(builderForValue.build());
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected symbols on the page.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Symbol symbols = 12;
+       */
+      public Builder addSymbols(
+          int index,
+          com.google.cloud.documentai.v1beta2.Document.Page.Symbol.Builder builderForValue) {
+        if (symbolsBuilder_ == null) {
+          ensureSymbolsIsMutable();
+          symbols_.add(index, builderForValue.build());
+          onChanged();
+        } else {
+          symbolsBuilder_.addMessage(index, builderForValue.build());
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected symbols on the page.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Symbol symbols = 12;
+       */
+      public Builder addAllSymbols(
+          java.lang.Iterable
+              values) {
+        if (symbolsBuilder_ == null) {
+          ensureSymbolsIsMutable();
+          com.google.protobuf.AbstractMessageLite.Builder.addAll(values, symbols_);
+          onChanged();
+        } else {
+          symbolsBuilder_.addAllMessages(values);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected symbols on the page.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Symbol symbols = 12;
+       */
+      public Builder clearSymbols() {
+        if (symbolsBuilder_ == null) {
+          symbols_ = java.util.Collections.emptyList();
+          bitField0_ = (bitField0_ & ~0x00002000);
+          onChanged();
+        } else {
+          symbolsBuilder_.clear();
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected symbols on the page.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Symbol symbols = 12;
+       */
+      public Builder removeSymbols(int index) {
+        if (symbolsBuilder_ == null) {
+          ensureSymbolsIsMutable();
+          symbols_.remove(index);
+          onChanged();
+        } else {
+          symbolsBuilder_.remove(index);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected symbols on the page.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Symbol symbols = 12;
+       */
+      public com.google.cloud.documentai.v1beta2.Document.Page.Symbol.Builder getSymbolsBuilder(
+          int index) {
+        return getSymbolsFieldBuilder().getBuilder(index);
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected symbols on the page.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Symbol symbols = 12;
+       */
+      public com.google.cloud.documentai.v1beta2.Document.Page.SymbolOrBuilder getSymbolsOrBuilder(
+          int index) {
+        if (symbolsBuilder_ == null) {
+          return symbols_.get(index);
+        } else {
+          return symbolsBuilder_.getMessageOrBuilder(index);
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected symbols on the page.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Symbol symbols = 12;
+       */
+      public java.util.List<
+              ? extends com.google.cloud.documentai.v1beta2.Document.Page.SymbolOrBuilder>
+          getSymbolsOrBuilderList() {
+        if (symbolsBuilder_ != null) {
+          return symbolsBuilder_.getMessageOrBuilderList();
+        } else {
+          return java.util.Collections.unmodifiableList(symbols_);
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected symbols on the page.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Symbol symbols = 12;
+       */
+      public com.google.cloud.documentai.v1beta2.Document.Page.Symbol.Builder addSymbolsBuilder() {
+        return getSymbolsFieldBuilder()
+            .addBuilder(
+                com.google.cloud.documentai.v1beta2.Document.Page.Symbol.getDefaultInstance());
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected symbols on the page.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Symbol symbols = 12;
+       */
+      public com.google.cloud.documentai.v1beta2.Document.Page.Symbol.Builder addSymbolsBuilder(
+          int index) {
+        return getSymbolsFieldBuilder()
+            .addBuilder(
+                index,
+                com.google.cloud.documentai.v1beta2.Document.Page.Symbol.getDefaultInstance());
+      }
+      /**
+       *
+       *
+       * 
+       * A list of visually detected symbols on the page.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.Symbol symbols = 12;
+       */
+      public java.util.List
+          getSymbolsBuilderList() {
+        return getSymbolsFieldBuilder().getBuilderList();
+      }
+
+      private com.google.protobuf.RepeatedFieldBuilderV3<
+              com.google.cloud.documentai.v1beta2.Document.Page.Symbol,
+              com.google.cloud.documentai.v1beta2.Document.Page.Symbol.Builder,
+              com.google.cloud.documentai.v1beta2.Document.Page.SymbolOrBuilder>
+          getSymbolsFieldBuilder() {
+        if (symbolsBuilder_ == null) {
+          symbolsBuilder_ =
+              new com.google.protobuf.RepeatedFieldBuilderV3<
+                  com.google.cloud.documentai.v1beta2.Document.Page.Symbol,
+                  com.google.cloud.documentai.v1beta2.Document.Page.Symbol.Builder,
+                  com.google.cloud.documentai.v1beta2.Document.Page.SymbolOrBuilder>(
+                  symbols_, ((bitField0_ & 0x00002000) != 0), getParentForChildren(), isClean());
+          symbols_ = null;
+        }
+        return symbolsBuilder_;
+      }
+
+      private java.util.List
+          detectedBarcodes_ = java.util.Collections.emptyList();
+
+      private void ensureDetectedBarcodesIsMutable() {
+        if (!((bitField0_ & 0x00004000) != 0)) {
+          detectedBarcodes_ =
+              new java.util.ArrayList<
+                  com.google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode>(
+                  detectedBarcodes_);
+          bitField0_ |= 0x00004000;
+        }
+      }
+
+      private com.google.protobuf.RepeatedFieldBuilderV3<
+              com.google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode,
+              com.google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode.Builder,
+              com.google.cloud.documentai.v1beta2.Document.Page.DetectedBarcodeOrBuilder>
+          detectedBarcodesBuilder_;
+
+      /**
+       *
+       *
+       * 
+       * A list of detected barcodes.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode detected_barcodes = 15;
+       * 
+       */
+      public java.util.List
+          getDetectedBarcodesList() {
+        if (detectedBarcodesBuilder_ == null) {
+          return java.util.Collections.unmodifiableList(detectedBarcodes_);
+        } else {
+          return detectedBarcodesBuilder_.getMessageList();
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * A list of detected barcodes.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode detected_barcodes = 15;
+       * 
+       */
+      public int getDetectedBarcodesCount() {
+        if (detectedBarcodesBuilder_ == null) {
+          return detectedBarcodes_.size();
+        } else {
+          return detectedBarcodesBuilder_.getCount();
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * A list of detected barcodes.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode detected_barcodes = 15;
+       * 
+       */
+      public com.google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode getDetectedBarcodes(
+          int index) {
+        if (detectedBarcodesBuilder_ == null) {
+          return detectedBarcodes_.get(index);
+        } else {
+          return detectedBarcodesBuilder_.getMessage(index);
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * A list of detected barcodes.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode detected_barcodes = 15;
+       * 
+       */
+      public Builder setDetectedBarcodes(
+          int index, com.google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode value) {
+        if (detectedBarcodesBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          ensureDetectedBarcodesIsMutable();
+          detectedBarcodes_.set(index, value);
+          onChanged();
+        } else {
+          detectedBarcodesBuilder_.setMessage(index, value);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of detected barcodes.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode detected_barcodes = 15;
+       * 
+       */
+      public Builder setDetectedBarcodes(
+          int index,
+          com.google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode.Builder
+              builderForValue) {
+        if (detectedBarcodesBuilder_ == null) {
+          ensureDetectedBarcodesIsMutable();
+          detectedBarcodes_.set(index, builderForValue.build());
+          onChanged();
+        } else {
+          detectedBarcodesBuilder_.setMessage(index, builderForValue.build());
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of detected barcodes.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode detected_barcodes = 15;
+       * 
+       */
+      public Builder addDetectedBarcodes(
+          com.google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode value) {
+        if (detectedBarcodesBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          ensureDetectedBarcodesIsMutable();
+          detectedBarcodes_.add(value);
+          onChanged();
+        } else {
+          detectedBarcodesBuilder_.addMessage(value);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of detected barcodes.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode detected_barcodes = 15;
+       * 
+       */
+      public Builder addDetectedBarcodes(
+          int index, com.google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode value) {
+        if (detectedBarcodesBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          ensureDetectedBarcodesIsMutable();
+          detectedBarcodes_.add(index, value);
+          onChanged();
+        } else {
+          detectedBarcodesBuilder_.addMessage(index, value);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of detected barcodes.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode detected_barcodes = 15;
+       * 
+       */
+      public Builder addDetectedBarcodes(
+          com.google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode.Builder
+              builderForValue) {
+        if (detectedBarcodesBuilder_ == null) {
+          ensureDetectedBarcodesIsMutable();
+          detectedBarcodes_.add(builderForValue.build());
+          onChanged();
+        } else {
+          detectedBarcodesBuilder_.addMessage(builderForValue.build());
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of detected barcodes.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode detected_barcodes = 15;
+       * 
+       */
+      public Builder addDetectedBarcodes(
+          int index,
+          com.google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode.Builder
+              builderForValue) {
+        if (detectedBarcodesBuilder_ == null) {
+          ensureDetectedBarcodesIsMutable();
+          detectedBarcodes_.add(index, builderForValue.build());
+          onChanged();
+        } else {
+          detectedBarcodesBuilder_.addMessage(index, builderForValue.build());
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of detected barcodes.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode detected_barcodes = 15;
+       * 
+       */
+      public Builder addAllDetectedBarcodes(
+          java.lang.Iterable<
+                  ? extends com.google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode>
+              values) {
+        if (detectedBarcodesBuilder_ == null) {
+          ensureDetectedBarcodesIsMutable();
+          com.google.protobuf.AbstractMessageLite.Builder.addAll(values, detectedBarcodes_);
+          onChanged();
+        } else {
+          detectedBarcodesBuilder_.addAllMessages(values);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of detected barcodes.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode detected_barcodes = 15;
+       * 
+       */
+      public Builder clearDetectedBarcodes() {
+        if (detectedBarcodesBuilder_ == null) {
+          detectedBarcodes_ = java.util.Collections.emptyList();
+          bitField0_ = (bitField0_ & ~0x00004000);
+          onChanged();
+        } else {
+          detectedBarcodesBuilder_.clear();
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of detected barcodes.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode detected_barcodes = 15;
+       * 
+       */
+      public Builder removeDetectedBarcodes(int index) {
+        if (detectedBarcodesBuilder_ == null) {
+          ensureDetectedBarcodesIsMutable();
+          detectedBarcodes_.remove(index);
+          onChanged();
+        } else {
+          detectedBarcodesBuilder_.remove(index);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * A list of detected barcodes.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode detected_barcodes = 15;
+       * 
+       */
+      public com.google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode.Builder
+          getDetectedBarcodesBuilder(int index) {
+        return getDetectedBarcodesFieldBuilder().getBuilder(index);
+      }
+      /**
+       *
+       *
+       * 
+       * A list of detected barcodes.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode detected_barcodes = 15;
+       * 
+       */
+      public com.google.cloud.documentai.v1beta2.Document.Page.DetectedBarcodeOrBuilder
+          getDetectedBarcodesOrBuilder(int index) {
+        if (detectedBarcodesBuilder_ == null) {
+          return detectedBarcodes_.get(index);
+        } else {
+          return detectedBarcodesBuilder_.getMessageOrBuilder(index);
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * A list of detected barcodes.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode detected_barcodes = 15;
+       * 
+       */
+      public java.util.List<
+              ? extends com.google.cloud.documentai.v1beta2.Document.Page.DetectedBarcodeOrBuilder>
+          getDetectedBarcodesOrBuilderList() {
+        if (detectedBarcodesBuilder_ != null) {
+          return detectedBarcodesBuilder_.getMessageOrBuilderList();
+        } else {
+          return java.util.Collections.unmodifiableList(detectedBarcodes_);
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * A list of detected barcodes.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode detected_barcodes = 15;
+       * 
+       */
+      public com.google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode.Builder
+          addDetectedBarcodesBuilder() {
+        return getDetectedBarcodesFieldBuilder()
+            .addBuilder(
+                com.google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode
+                    .getDefaultInstance());
+      }
+      /**
+       *
+       *
+       * 
+       * A list of detected barcodes.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode detected_barcodes = 15;
+       * 
+       */
+      public com.google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode.Builder
+          addDetectedBarcodesBuilder(int index) {
+        return getDetectedBarcodesFieldBuilder()
+            .addBuilder(
+                index,
+                com.google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode
+                    .getDefaultInstance());
+      }
+      /**
+       *
+       *
+       * 
+       * A list of detected barcodes.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode detected_barcodes = 15;
+       * 
+       */
+      public java.util.List<
+              com.google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode.Builder>
+          getDetectedBarcodesBuilderList() {
+        return getDetectedBarcodesFieldBuilder().getBuilderList();
+      }
+
+      private com.google.protobuf.RepeatedFieldBuilderV3<
+              com.google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode,
+              com.google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode.Builder,
+              com.google.cloud.documentai.v1beta2.Document.Page.DetectedBarcodeOrBuilder>
+          getDetectedBarcodesFieldBuilder() {
+        if (detectedBarcodesBuilder_ == null) {
+          detectedBarcodesBuilder_ =
+              new com.google.protobuf.RepeatedFieldBuilderV3<
+                  com.google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode,
+                  com.google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode.Builder,
+                  com.google.cloud.documentai.v1beta2.Document.Page.DetectedBarcodeOrBuilder>(
+                  detectedBarcodes_,
+                  ((bitField0_ & 0x00004000) != 0),
+                  getParentForChildren(),
+                  isClean());
+          detectedBarcodes_ = null;
+        }
+        return detectedBarcodesBuilder_;
+      }
+
+      private com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores
+          imageQualityScores_;
+      private com.google.protobuf.SingleFieldBuilderV3<
+              com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores,
+              com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores.Builder,
+              com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScoresOrBuilder>
+          imageQualityScoresBuilder_;
+      /**
+       *
+       *
+       * 
+       * Image quality scores.
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores image_quality_scores = 17;
+       * 
+       *
+       * @return Whether the imageQualityScores field is set.
+       */
+      public boolean hasImageQualityScores() {
+        return ((bitField0_ & 0x00008000) != 0);
+      }
+      /**
+       *
+       *
+       * 
+       * Image quality scores.
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores image_quality_scores = 17;
+       * 
+       *
+       * @return The imageQualityScores.
+       */
+      public com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores
+          getImageQualityScores() {
+        if (imageQualityScoresBuilder_ == null) {
+          return imageQualityScores_ == null
+              ? com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores
+                  .getDefaultInstance()
+              : imageQualityScores_;
+        } else {
+          return imageQualityScoresBuilder_.getMessage();
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * Image quality scores.
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores image_quality_scores = 17;
+       * 
+       */
+      public Builder setImageQualityScores(
+          com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores value) {
+        if (imageQualityScoresBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          imageQualityScores_ = value;
+        } else {
+          imageQualityScoresBuilder_.setMessage(value);
+        }
+        bitField0_ |= 0x00008000;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * Image quality scores.
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores image_quality_scores = 17;
+       * 
+       */
+      public Builder setImageQualityScores(
+          com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores.Builder
+              builderForValue) {
+        if (imageQualityScoresBuilder_ == null) {
+          imageQualityScores_ = builderForValue.build();
+        } else {
+          imageQualityScoresBuilder_.setMessage(builderForValue.build());
+        }
+        bitField0_ |= 0x00008000;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * Image quality scores.
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores image_quality_scores = 17;
+       * 
+       */
+      public Builder mergeImageQualityScores(
+          com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores value) {
+        if (imageQualityScoresBuilder_ == null) {
+          if (((bitField0_ & 0x00008000) != 0)
+              && imageQualityScores_ != null
+              && imageQualityScores_
+                  != com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores
+                      .getDefaultInstance()) {
+            getImageQualityScoresBuilder().mergeFrom(value);
+          } else {
+            imageQualityScores_ = value;
+          }
+        } else {
+          imageQualityScoresBuilder_.mergeFrom(value);
+        }
+        bitField0_ |= 0x00008000;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * Image quality scores.
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores image_quality_scores = 17;
+       * 
+       */
+      public Builder clearImageQualityScores() {
+        bitField0_ = (bitField0_ & ~0x00008000);
+        imageQualityScores_ = null;
+        if (imageQualityScoresBuilder_ != null) {
+          imageQualityScoresBuilder_.dispose();
+          imageQualityScoresBuilder_ = null;
+        }
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * Image quality scores.
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores image_quality_scores = 17;
+       * 
+       */
+      public com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores.Builder
+          getImageQualityScoresBuilder() {
+        bitField0_ |= 0x00008000;
+        onChanged();
+        return getImageQualityScoresFieldBuilder().getBuilder();
+      }
+      /**
+       *
+       *
+       * 
+       * Image quality scores.
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores image_quality_scores = 17;
+       * 
+       */
+      public com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScoresOrBuilder
+          getImageQualityScoresOrBuilder() {
+        if (imageQualityScoresBuilder_ != null) {
+          return imageQualityScoresBuilder_.getMessageOrBuilder();
+        } else {
+          return imageQualityScores_ == null
+              ? com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores
+                  .getDefaultInstance()
+              : imageQualityScores_;
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * Image quality scores.
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores image_quality_scores = 17;
+       * 
+       */
+      private com.google.protobuf.SingleFieldBuilderV3<
+              com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores,
+              com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores.Builder,
+              com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScoresOrBuilder>
+          getImageQualityScoresFieldBuilder() {
+        if (imageQualityScoresBuilder_ == null) {
+          imageQualityScoresBuilder_ =
+              new com.google.protobuf.SingleFieldBuilderV3<
+                  com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores,
+                  com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScores.Builder,
+                  com.google.cloud.documentai.v1beta2.Document.Page.ImageQualityScoresOrBuilder>(
+                  getImageQualityScores(), getParentForChildren(), isClean());
+          imageQualityScores_ = null;
+        }
+        return imageQualityScoresBuilder_;
+      }
+
+      private com.google.cloud.documentai.v1beta2.Document.Provenance provenance_;
+      private com.google.protobuf.SingleFieldBuilderV3<
+              com.google.cloud.documentai.v1beta2.Document.Provenance,
+              com.google.cloud.documentai.v1beta2.Document.Provenance.Builder,
+              com.google.cloud.documentai.v1beta2.Document.ProvenanceOrBuilder>
+          provenanceBuilder_;
+      /**
+       *
+       *
+       * 
+       * The history of this page.
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 16 [deprecated = true];
+       * 
+       *
+       * @deprecated google.cloud.documentai.v1beta2.Document.Page.provenance is deprecated. See
+       *     google/cloud/documentai/v1beta2/document.proto;l=577
+       * @return Whether the provenance field is set.
+       */
+      @java.lang.Deprecated
+      public boolean hasProvenance() {
+        return ((bitField0_ & 0x00010000) != 0);
+      }
+      /**
+       *
+       *
+       * 
+       * The history of this page.
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 16 [deprecated = true];
+       * 
+       *
+       * @deprecated google.cloud.documentai.v1beta2.Document.Page.provenance is deprecated. See
+       *     google/cloud/documentai/v1beta2/document.proto;l=577
+       * @return The provenance.
+       */
+      @java.lang.Deprecated
+      public com.google.cloud.documentai.v1beta2.Document.Provenance getProvenance() {
+        if (provenanceBuilder_ == null) {
+          return provenance_ == null
+              ? com.google.cloud.documentai.v1beta2.Document.Provenance.getDefaultInstance()
+              : provenance_;
+        } else {
+          return provenanceBuilder_.getMessage();
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * The history of this page.
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 16 [deprecated = true];
+       * 
+       */
+      @java.lang.Deprecated
+      public Builder setProvenance(com.google.cloud.documentai.v1beta2.Document.Provenance value) {
+        if (provenanceBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          provenance_ = value;
+        } else {
+          provenanceBuilder_.setMessage(value);
+        }
+        bitField0_ |= 0x00010000;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * The history of this page.
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 16 [deprecated = true];
+       * 
+       */
+      @java.lang.Deprecated
+      public Builder setProvenance(
+          com.google.cloud.documentai.v1beta2.Document.Provenance.Builder builderForValue) {
+        if (provenanceBuilder_ == null) {
+          provenance_ = builderForValue.build();
+        } else {
+          provenanceBuilder_.setMessage(builderForValue.build());
+        }
+        bitField0_ |= 0x00010000;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * The history of this page.
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 16 [deprecated = true];
+       * 
+       */
+      @java.lang.Deprecated
+      public Builder mergeProvenance(
+          com.google.cloud.documentai.v1beta2.Document.Provenance value) {
+        if (provenanceBuilder_ == null) {
+          if (((bitField0_ & 0x00010000) != 0)
+              && provenance_ != null
+              && provenance_
+                  != com.google.cloud.documentai.v1beta2.Document.Provenance.getDefaultInstance()) {
+            getProvenanceBuilder().mergeFrom(value);
+          } else {
+            provenance_ = value;
+          }
+        } else {
+          provenanceBuilder_.mergeFrom(value);
+        }
+        bitField0_ |= 0x00010000;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * The history of this page.
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 16 [deprecated = true];
+       * 
+       */
+      @java.lang.Deprecated
+      public Builder clearProvenance() {
+        bitField0_ = (bitField0_ & ~0x00010000);
+        provenance_ = null;
+        if (provenanceBuilder_ != null) {
+          provenanceBuilder_.dispose();
+          provenanceBuilder_ = null;
+        }
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * The history of this page.
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 16 [deprecated = true];
+       * 
+       */
+      @java.lang.Deprecated
+      public com.google.cloud.documentai.v1beta2.Document.Provenance.Builder
+          getProvenanceBuilder() {
+        bitField0_ |= 0x00010000;
+        onChanged();
+        return getProvenanceFieldBuilder().getBuilder();
+      }
+      /**
+       *
+       *
+       * 
+       * The history of this page.
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 16 [deprecated = true];
+       * 
+       */
+      @java.lang.Deprecated
+      public com.google.cloud.documentai.v1beta2.Document.ProvenanceOrBuilder
+          getProvenanceOrBuilder() {
+        if (provenanceBuilder_ != null) {
+          return provenanceBuilder_.getMessageOrBuilder();
+        } else {
+          return provenance_ == null
+              ? com.google.cloud.documentai.v1beta2.Document.Provenance.getDefaultInstance()
+              : provenance_;
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * The history of this page.
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 16 [deprecated = true];
+       * 
+       */
+      private com.google.protobuf.SingleFieldBuilderV3<
+              com.google.cloud.documentai.v1beta2.Document.Provenance,
+              com.google.cloud.documentai.v1beta2.Document.Provenance.Builder,
+              com.google.cloud.documentai.v1beta2.Document.ProvenanceOrBuilder>
+          getProvenanceFieldBuilder() {
+        if (provenanceBuilder_ == null) {
+          provenanceBuilder_ =
+              new com.google.protobuf.SingleFieldBuilderV3<
+                  com.google.cloud.documentai.v1beta2.Document.Provenance,
+                  com.google.cloud.documentai.v1beta2.Document.Provenance.Builder,
+                  com.google.cloud.documentai.v1beta2.Document.ProvenanceOrBuilder>(
+                  getProvenance(), getParentForChildren(), isClean());
+          provenance_ = null;
+        }
+        return provenanceBuilder_;
+      }
+
+      @java.lang.Override
+      public final Builder setUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.setUnknownFields(unknownFields);
+      }
+
+      @java.lang.Override
+      public final Builder mergeUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.mergeUnknownFields(unknownFields);
+      }
+
+      // @@protoc_insertion_point(builder_scope:google.cloud.documentai.v1beta2.Document.Page)
+    }
+
+    // @@protoc_insertion_point(class_scope:google.cloud.documentai.v1beta2.Document.Page)
+    private static final com.google.cloud.documentai.v1beta2.Document.Page DEFAULT_INSTANCE;
+
+    static {
+      DEFAULT_INSTANCE = new com.google.cloud.documentai.v1beta2.Document.Page();
+    }
+
+    public static com.google.cloud.documentai.v1beta2.Document.Page getDefaultInstance() {
+      return DEFAULT_INSTANCE;
+    }
+
+    private static final com.google.protobuf.Parser PARSER =
+        new com.google.protobuf.AbstractParser() {
+          @java.lang.Override
+          public Page parsePartialFrom(
+              com.google.protobuf.CodedInputStream input,
+              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+              throws com.google.protobuf.InvalidProtocolBufferException {
+            Builder builder = newBuilder();
+            try {
+              builder.mergeFrom(input, extensionRegistry);
+            } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+              throw e.setUnfinishedMessage(builder.buildPartial());
+            } catch (com.google.protobuf.UninitializedMessageException e) {
+              throw e.asInvalidProtocolBufferException()
+                  .setUnfinishedMessage(builder.buildPartial());
+            } catch (java.io.IOException e) {
+              throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                  .setUnfinishedMessage(builder.buildPartial());
+            }
+            return builder.buildPartial();
+          }
+        };
+
+    public static com.google.protobuf.Parser parser() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Parser getParserForType() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta2.Document.Page getDefaultInstanceForType() {
+      return DEFAULT_INSTANCE;
+    }
+  }
+
+  public interface EntityOrBuilder
+      extends
+      // @@protoc_insertion_point(interface_extends:google.cloud.documentai.v1beta2.Document.Entity)
+      com.google.protobuf.MessageOrBuilder {
+
+    /**
+     *
+     *
+     * 
+     * Optional. Provenance of the entity.
+     * Text anchor indexing into the
+     * [Document.text][google.cloud.documentai.v1beta2.Document.text].
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1beta2.Document.TextAnchor text_anchor = 1 [(.google.api.field_behavior) = OPTIONAL];
+     * 
+     *
+     * @return Whether the textAnchor field is set.
+     */
+    boolean hasTextAnchor();
+    /**
+     *
+     *
+     * 
+     * Optional. Provenance of the entity.
+     * Text anchor indexing into the
+     * [Document.text][google.cloud.documentai.v1beta2.Document.text].
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1beta2.Document.TextAnchor text_anchor = 1 [(.google.api.field_behavior) = OPTIONAL];
+     * 
+     *
+     * @return The textAnchor.
+     */
+    com.google.cloud.documentai.v1beta2.Document.TextAnchor getTextAnchor();
+    /**
+     *
+     *
+     * 
+     * Optional. Provenance of the entity.
+     * Text anchor indexing into the
+     * [Document.text][google.cloud.documentai.v1beta2.Document.text].
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1beta2.Document.TextAnchor text_anchor = 1 [(.google.api.field_behavior) = OPTIONAL];
+     * 
+     */
+    com.google.cloud.documentai.v1beta2.Document.TextAnchorOrBuilder getTextAnchorOrBuilder();
+
+    /**
+     *
+     *
+     * 
+     * Required. Entity type from a schema e.g. `Address`.
+     * 

+     *
+     * string type = 2 [(.google.api.field_behavior) = REQUIRED];
+     *
+     * @return The type.
+     */
+    java.lang.String getType();
+    /**
+     *
+     *
+     * 
+     * Required. Entity type from a schema e.g. `Address`.
+     * 

+     *
+     * string type = 2 [(.google.api.field_behavior) = REQUIRED];
+     *
+     * @return The bytes for type.
+     */
+    com.google.protobuf.ByteString getTypeBytes();
+
+    /**
+     *
+     *
+     * 
+     * Optional. Text value of the entity e.g. `1600 Amphitheatre Pkwy`.
+     * 

+     *
+     * string mention_text = 3 [(.google.api.field_behavior) = OPTIONAL];
+     *
+     * @return The mentionText.
+     */
+    java.lang.String getMentionText();
+    /**
+     *
+     *
+     * 
+     * Optional. Text value of the entity e.g. `1600 Amphitheatre Pkwy`.
+     * 

+     *
+     * string mention_text = 3 [(.google.api.field_behavior) = OPTIONAL];
+     *
+     * @return The bytes for mentionText.
+     */
+    com.google.protobuf.ByteString getMentionTextBytes();
+
+    /**
+     *
+     *
+     * 
+     * Optional. Deprecated.  Use `id` field instead.
+     * 

+     *
+     * string mention_id = 4 [(.google.api.field_behavior) = OPTIONAL];
+     *
+     * @return The mentionId.
+     */
+    java.lang.String getMentionId();
+    /**
+     *
+     *
+     * 
+     * Optional. Deprecated.  Use `id` field instead.
+     * 

+     *
+     * string mention_id = 4 [(.google.api.field_behavior) = OPTIONAL];
+     *
+     * @return The bytes for mentionId.
+     */
+    com.google.protobuf.ByteString getMentionIdBytes();
+
+    /**
+     *
+     *
+     * 
+     * Optional. Confidence of detected Schema entity. Range `[0, 1]`.
+     * 

+     *
+     * float confidence = 5 [(.google.api.field_behavior) = OPTIONAL];
+     *
+     * @return The confidence.
+     */
+    float getConfidence();
+
+    /**
+     *
+     *
+     * 
+     * Optional. Represents the provenance of this entity wrt. the location on
+     * the page where it was found.
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1beta2.Document.PageAnchor page_anchor = 6 [(.google.api.field_behavior) = OPTIONAL];
+     * 
+     *
+     * @return Whether the pageAnchor field is set.
+     */
+    boolean hasPageAnchor();
+    /**
+     *
+     *
+     * 
+     * Optional. Represents the provenance of this entity wrt. the location on
+     * the page where it was found.
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1beta2.Document.PageAnchor page_anchor = 6 [(.google.api.field_behavior) = OPTIONAL];
+     * 
+     *
+     * @return The pageAnchor.
+     */
+    com.google.cloud.documentai.v1beta2.Document.PageAnchor getPageAnchor();
+    /**
+     *
+     *
+     * 
+     * Optional. Represents the provenance of this entity wrt. the location on
+     * the page where it was found.
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1beta2.Document.PageAnchor page_anchor = 6 [(.google.api.field_behavior) = OPTIONAL];
+     * 
+     */
+    com.google.cloud.documentai.v1beta2.Document.PageAnchorOrBuilder getPageAnchorOrBuilder();
+
+    /**
+     *
+     *
+     * 
+     * Optional. Canonical id. This will be a unique value in the entity list
+     * for this document.
+     * 

+     *
+     * string id = 7 [(.google.api.field_behavior) = OPTIONAL];
+     *
+     * @return The id.
+     */
+    java.lang.String getId();
+    /**
+     *
+     *
+     * 
+     * Optional. Canonical id. This will be a unique value in the entity list
+     * for this document.
+     * 

+     *
+     * string id = 7 [(.google.api.field_behavior) = OPTIONAL];
+     *
+     * @return The bytes for id.
+     */
+    com.google.protobuf.ByteString getIdBytes();
+
+    /**
+     *
+     *
+     * 
+     * Optional. Normalized entity value. Absent if the extracted value could
+     * not be converted or the type (e.g. address) is not supported for certain
+     * parsers. This field is also only populated for certain supported document
+     * types.
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1beta2.Document.Entity.NormalizedValue normalized_value = 9 [(.google.api.field_behavior) = OPTIONAL];
+     * 
+     *
+     * @return Whether the normalizedValue field is set.
+     */
+    boolean hasNormalizedValue();
+    /**
+     *
+     *
+     * 
+     * Optional. Normalized entity value. Absent if the extracted value could
+     * not be converted or the type (e.g. address) is not supported for certain
+     * parsers. This field is also only populated for certain supported document
+     * types.
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1beta2.Document.Entity.NormalizedValue normalized_value = 9 [(.google.api.field_behavior) = OPTIONAL];
+     * 
+     *
+     * @return The normalizedValue.
+     */
+    com.google.cloud.documentai.v1beta2.Document.Entity.NormalizedValue getNormalizedValue();
+    /**
+     *
+     *
+     * 
+     * Optional. Normalized entity value. Absent if the extracted value could
+     * not be converted or the type (e.g. address) is not supported for certain
+     * parsers. This field is also only populated for certain supported document
+     * types.
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1beta2.Document.Entity.NormalizedValue normalized_value = 9 [(.google.api.field_behavior) = OPTIONAL];
+     * 
+     */
+    com.google.cloud.documentai.v1beta2.Document.Entity.NormalizedValueOrBuilder
+        getNormalizedValueOrBuilder();
+
+    /**
+     *
+     *
+     * 
+     * Optional. Entities can be nested to form a hierarchical data structure
+     * representing the content in the document.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta2.Document.Entity properties = 10 [(.google.api.field_behavior) = OPTIONAL];
+     * 
+     */
+    java.util.List getPropertiesList();
+    /**
+     *
+     *
+     * 
+     * Optional. Entities can be nested to form a hierarchical data structure
+     * representing the content in the document.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta2.Document.Entity properties = 10 [(.google.api.field_behavior) = OPTIONAL];
+     * 
+     */
+    com.google.cloud.documentai.v1beta2.Document.Entity getProperties(int index);
+    /**
+     *
+     *
+     * 
+     * Optional. Entities can be nested to form a hierarchical data structure
+     * representing the content in the document.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta2.Document.Entity properties = 10 [(.google.api.field_behavior) = OPTIONAL];
+     * 
+     */
+    int getPropertiesCount();
+    /**
+     *
+     *
+     * 
+     * Optional. Entities can be nested to form a hierarchical data structure
+     * representing the content in the document.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta2.Document.Entity properties = 10 [(.google.api.field_behavior) = OPTIONAL];
+     * 
+     */
+    java.util.List
+        getPropertiesOrBuilderList();
+    /**
+     *
+     *
+     * 
+     * Optional. Entities can be nested to form a hierarchical data structure
+     * representing the content in the document.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta2.Document.Entity properties = 10 [(.google.api.field_behavior) = OPTIONAL];
+     * 
+     */
+    com.google.cloud.documentai.v1beta2.Document.EntityOrBuilder getPropertiesOrBuilder(int index);
+
+    /**
+     *
+     *
+     * 
+     * Optional. The history of this annotation.
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 11 [(.google.api.field_behavior) = OPTIONAL];
+     * 
+     *
+     * @return Whether the provenance field is set.
+     */
+    boolean hasProvenance();
+    /**
+     *
+     *
+     * 
+     * Optional. The history of this annotation.
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 11 [(.google.api.field_behavior) = OPTIONAL];
+     * 
+     *
+     * @return The provenance.
+     */
+    com.google.cloud.documentai.v1beta2.Document.Provenance getProvenance();
+    /**
+     *
+     *
+     * 
+     * Optional. The history of this annotation.
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 11 [(.google.api.field_behavior) = OPTIONAL];
+     * 
+     */
+    com.google.cloud.documentai.v1beta2.Document.ProvenanceOrBuilder getProvenanceOrBuilder();
+
+    /**
+     *
+     *
+     * 
+     * Optional. Whether the entity will be redacted for de-identification
+     * purposes.
+     * 

+     *
+     * bool redacted = 12 [(.google.api.field_behavior) = OPTIONAL];
+     *
+     * @return The redacted.
+     */
+    boolean getRedacted();
+  }
+  /**
+   *
+   *
+   * 
+   * An entity that could be a phrase in the text or a property that belongs to
+   * the document. It is a known entity type, such as a person, an organization,
+   * or location.
+   * 

+   *
+   * Protobuf type {@code google.cloud.documentai.v1beta2.Document.Entity}
+   */
+  public static final class Entity extends com.google.protobuf.GeneratedMessageV3
+      implements
+      // @@protoc_insertion_point(message_implements:google.cloud.documentai.v1beta2.Document.Entity)
+      EntityOrBuilder {
+    private static final long serialVersionUID = 0L;
+    // Use Entity.newBuilder() to construct.
+    private Entity(com.google.protobuf.GeneratedMessageV3.Builder builder) {
+      super(builder);
+    }
+
+    private Entity() {
+      type_ = "";
+      mentionText_ = "";
+      mentionId_ = "";
+      id_ = "";
+      properties_ = java.util.Collections.emptyList();
+    }
+
+    @java.lang.Override
+    @SuppressWarnings({"unused"})
+    protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+      return new Entity();
+    }
+
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.documentai.v1beta2.DocumentProto
+          .internal_static_google_cloud_documentai_v1beta2_Document_Entity_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.documentai.v1beta2.DocumentProto
+          .internal_static_google_cloud_documentai_v1beta2_Document_Entity_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.documentai.v1beta2.Document.Entity.class,
+              com.google.cloud.documentai.v1beta2.Document.Entity.Builder.class);
+    }
+
+    public interface NormalizedValueOrBuilder
+        extends
+        // @@protoc_insertion_point(interface_extends:google.cloud.documentai.v1beta2.Document.Entity.NormalizedValue)
+        com.google.protobuf.MessageOrBuilder {
+
+      /**
+       *
+       *
+       * 
+       * Money value. See also:
+       * https://github.com/googleapis/googleapis/blob/master/google/type/money.proto
+       * 

+       *
+       * .google.type.Money money_value = 2;
+       *
+       * @return Whether the moneyValue field is set.
+       */
+      boolean hasMoneyValue();
+      /**
+       *
+       *
+       * 
+       * Money value. See also:
+       * https://github.com/googleapis/googleapis/blob/master/google/type/money.proto
+       * 

+       *
+       * .google.type.Money money_value = 2;
+       *
+       * @return The moneyValue.
+       */
+      com.google.type.Money getMoneyValue();
+      /**
+       *
+       *
+       * 
+       * Money value. See also:
+       * https://github.com/googleapis/googleapis/blob/master/google/type/money.proto
+       * 

+       *
+       * .google.type.Money money_value = 2;
+       */
+      com.google.type.MoneyOrBuilder getMoneyValueOrBuilder();
+
+      /**
+       *
+       *
+       * 
+       * Date value. Includes year, month, day. See also:
+       * https://github.com/googleapis/googleapis/blob/master/google/type/date.proto
+       * 

+       *
+       * .google.type.Date date_value = 3;
+       *
+       * @return Whether the dateValue field is set.
+       */
+      boolean hasDateValue();
+      /**
+       *
+       *
+       * 
+       * Date value. Includes year, month, day. See also:
+       * https://github.com/googleapis/googleapis/blob/master/google/type/date.proto
+       * 

+       *
+       * .google.type.Date date_value = 3;
+       *
+       * @return The dateValue.
+       */
+      com.google.type.Date getDateValue();
+      /**
+       *
+       *
+       * 
+       * Date value. Includes year, month, day. See also:
+       * https://github.com/googleapis/googleapis/blob/master/google/type/date.proto
+       * 

+       *
+       * .google.type.Date date_value = 3;
+       */
+      com.google.type.DateOrBuilder getDateValueOrBuilder();
+
+      /**
+       *
+       *
+       * 
+       * DateTime value. Includes date, time, and timezone. See also:
+       * https://github.com/googleapis/googleapis/blob/master/google/type/datetime.proto
+       * 

+       *
+       * .google.type.DateTime datetime_value = 4;
+       *
+       * @return Whether the datetimeValue field is set.
+       */
+      boolean hasDatetimeValue();
+      /**
+       *
+       *
+       * 
+       * DateTime value. Includes date, time, and timezone. See also:
+       * https://github.com/googleapis/googleapis/blob/master/google/type/datetime.proto
+       * 

+       *
+       * .google.type.DateTime datetime_value = 4;
+       *
+       * @return The datetimeValue.
+       */
+      com.google.type.DateTime getDatetimeValue();
+      /**
+       *
+       *
+       * 
+       * DateTime value. Includes date, time, and timezone. See also:
+       * https://github.com/googleapis/googleapis/blob/master/google/type/datetime.proto
+       * 

+       *
+       * .google.type.DateTime datetime_value = 4;
+       */
+      com.google.type.DateTimeOrBuilder getDatetimeValueOrBuilder();
+
+      /**
+       *
+       *
+       * 
+       * Postal address. See also:
+       * https://github.com/googleapis/googleapis/blob/master/google/type/postal_address.proto
+       * 

+       *
+       * .google.type.PostalAddress address_value = 5;
+       *
+       * @return Whether the addressValue field is set.
+       */
+      boolean hasAddressValue();
+      /**
+       *
+       *
+       * 
+       * Postal address. See also:
+       * https://github.com/googleapis/googleapis/blob/master/google/type/postal_address.proto
+       * 

+       *
+       * .google.type.PostalAddress address_value = 5;
+       *
+       * @return The addressValue.
+       */
+      com.google.type.PostalAddress getAddressValue();
+      /**
+       *
+       *
+       * 
+       * Postal address. See also:
+       * https://github.com/googleapis/googleapis/blob/master/google/type/postal_address.proto
+       * 

+       *
+       * .google.type.PostalAddress address_value = 5;
+       */
+      com.google.type.PostalAddressOrBuilder getAddressValueOrBuilder();
+
+      /**
+       *
+       *
+       * 
+       * Boolean value. Can be used for entities with binary values, or for
+       * checkboxes.
+       * 

+       *
+       * bool boolean_value = 6;
+       *
+       * @return Whether the booleanValue field is set.
+       */
+      boolean hasBooleanValue();
+      /**
+       *
+       *
+       * 
+       * Boolean value. Can be used for entities with binary values, or for
+       * checkboxes.
+       * 

+       *
+       * bool boolean_value = 6;
+       *
+       * @return The booleanValue.
+       */
+      boolean getBooleanValue();
+
+      /**
+       *
+       *
+       * 
+       * Integer value.
+       * 

+       *
+       * int32 integer_value = 7;
+       *
+       * @return Whether the integerValue field is set.
+       */
+      boolean hasIntegerValue();
+      /**
+       *
+       *
+       * 
+       * Integer value.
+       * 

+       *
+       * int32 integer_value = 7;
+       *
+       * @return The integerValue.
+       */
+      int getIntegerValue();
+
+      /**
+       *
+       *
+       * 
+       * Float value.
+       * 

+       *
+       * float float_value = 8;
+       *
+       * @return Whether the floatValue field is set.
+       */
+      boolean hasFloatValue();
+      /**
+       *
+       *
+       * 
+       * Float value.
+       * 

+       *
+       * float float_value = 8;
+       *
+       * @return The floatValue.
+       */
+      float getFloatValue();
+
+      /**
+       *
+       *
+       * 
+       * Optional. An optional field to store a normalized string.
+       * For some entity types, one of respective `structured_value` fields may
+       * also be populated. Also not all the types of `structured_value` will be
+       * normalized. For example, some processors may not generate `float`
+       * or `integer` normalized text by default.
+       *
+       * Below are sample formats mapped to structured values.
+       *
+       * - Money/Currency type (`money_value`) is in the ISO 4217 text format.
+       * - Date type (`date_value`) is in the ISO 8601 text format.
+       * - Datetime type (`datetime_value`) is in the ISO 8601 text format.
+       * 

+       *
+       * string text = 1 [(.google.api.field_behavior) = OPTIONAL];
+       *
+       * @return The text.
+       */
+      java.lang.String getText();
+      /**
+       *
+       *
+       * 
+       * Optional. An optional field to store a normalized string.
+       * For some entity types, one of respective `structured_value` fields may
+       * also be populated. Also not all the types of `structured_value` will be
+       * normalized. For example, some processors may not generate `float`
+       * or `integer` normalized text by default.
+       *
+       * Below are sample formats mapped to structured values.
+       *
+       * - Money/Currency type (`money_value`) is in the ISO 4217 text format.
+       * - Date type (`date_value`) is in the ISO 8601 text format.
+       * - Datetime type (`datetime_value`) is in the ISO 8601 text format.
+       * 

+       *
+       * string text = 1 [(.google.api.field_behavior) = OPTIONAL];
+       *
+       * @return The bytes for text.
+       */
+      com.google.protobuf.ByteString getTextBytes();
+
+      com.google.cloud.documentai.v1beta2.Document.Entity.NormalizedValue.StructuredValueCase
+          getStructuredValueCase();
+    }
+    /**
+     *
+     *
+     * 
+     * Parsed and normalized entity value.
+     * 

+     *
+     * Protobuf type {@code google.cloud.documentai.v1beta2.Document.Entity.NormalizedValue}
+     */
+    public static final class NormalizedValue extends com.google.protobuf.GeneratedMessageV3
+        implements
+        // @@protoc_insertion_point(message_implements:google.cloud.documentai.v1beta2.Document.Entity.NormalizedValue)
+        NormalizedValueOrBuilder {
+      private static final long serialVersionUID = 0L;
+      // Use NormalizedValue.newBuilder() to construct.
+      private NormalizedValue(com.google.protobuf.GeneratedMessageV3.Builder builder) {
+        super(builder);
+      }
+
+      private NormalizedValue() {
+        text_ = "";
+      }
+
+      @java.lang.Override
+      @SuppressWarnings({"unused"})
+      protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+        return new NormalizedValue();
+      }
+
+      public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+        return com.google.cloud.documentai.v1beta2.DocumentProto
+            .internal_static_google_cloud_documentai_v1beta2_Document_Entity_NormalizedValue_descriptor;
+      }
+
+      @java.lang.Override
+      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+          internalGetFieldAccessorTable() {
+        return com.google.cloud.documentai.v1beta2.DocumentProto
+            .internal_static_google_cloud_documentai_v1beta2_Document_Entity_NormalizedValue_fieldAccessorTable
+            .ensureFieldAccessorsInitialized(
+                com.google.cloud.documentai.v1beta2.Document.Entity.NormalizedValue.class,
+                com.google.cloud.documentai.v1beta2.Document.Entity.NormalizedValue.Builder.class);
+      }
+
+      private int structuredValueCase_ = 0;
+
+      @SuppressWarnings("serial")
+      private java.lang.Object structuredValue_;
+
+      public enum StructuredValueCase
+          implements
+              com.google.protobuf.Internal.EnumLite,
+              com.google.protobuf.AbstractMessage.InternalOneOfEnum {
+        MONEY_VALUE(2),
+        DATE_VALUE(3),
+        DATETIME_VALUE(4),
+        ADDRESS_VALUE(5),
+        BOOLEAN_VALUE(6),
+        INTEGER_VALUE(7),
+        FLOAT_VALUE(8),
+        STRUCTUREDVALUE_NOT_SET(0);
+        private final int value;
+
+        private StructuredValueCase(int value) {
+          this.value = value;
+        }
+        /**
+         * @param value The number of the enum to look for.
+         * @return The enum associated with the given number.
+         * @deprecated Use {@link #forNumber(int)} instead.
+         */
+        @java.lang.Deprecated
+        public static StructuredValueCase valueOf(int value) {
+          return forNumber(value);
+        }
+
+        public static StructuredValueCase forNumber(int value) {
+          switch (value) {
+            case 2:
+              return MONEY_VALUE;
+            case 3:
+              return DATE_VALUE;
+            case 4:
+              return DATETIME_VALUE;
+            case 5:
+              return ADDRESS_VALUE;
+            case 6:
+              return BOOLEAN_VALUE;
+            case 7:
+              return INTEGER_VALUE;
+            case 8:
+              return FLOAT_VALUE;
+            case 0:
+              return STRUCTUREDVALUE_NOT_SET;
+            default:
+              return null;
+          }
+        }
+
+        public int getNumber() {
+          return this.value;
+        }
+      };
+
+      public StructuredValueCase getStructuredValueCase() {
+        return StructuredValueCase.forNumber(structuredValueCase_);
+      }
+
+      public static final int MONEY_VALUE_FIELD_NUMBER = 2;
+      /**
+       *
+       *
+       * 
+       * Money value. See also:
+       * https://github.com/googleapis/googleapis/blob/master/google/type/money.proto
+       * 

+       *
+       * .google.type.Money money_value = 2;
+       *
+       * @return Whether the moneyValue field is set.
+       */
+      @java.lang.Override
+      public boolean hasMoneyValue() {
+        return structuredValueCase_ == 2;
+      }
+      /**
+       *
+       *
+       * 
+       * Money value. See also:
+       * https://github.com/googleapis/googleapis/blob/master/google/type/money.proto
+       * 

+       *
+       * .google.type.Money money_value = 2;
+       *
+       * @return The moneyValue.
+       */
+      @java.lang.Override
+      public com.google.type.Money getMoneyValue() {
+        if (structuredValueCase_ == 2) {
+          return (com.google.type.Money) structuredValue_;
+        }
+        return com.google.type.Money.getDefaultInstance();
+      }
+      /**
+       *
+       *
+       * 
+       * Money value. See also:
+       * https://github.com/googleapis/googleapis/blob/master/google/type/money.proto
+       * 

+       *
+       * .google.type.Money money_value = 2;
+       */
+      @java.lang.Override
+      public com.google.type.MoneyOrBuilder getMoneyValueOrBuilder() {
+        if (structuredValueCase_ == 2) {
+          return (com.google.type.Money) structuredValue_;
+        }
+        return com.google.type.Money.getDefaultInstance();
+      }
+
+      public static final int DATE_VALUE_FIELD_NUMBER = 3;
+      /**
+       *
+       *
+       * 
+       * Date value. Includes year, month, day. See also:
+       * https://github.com/googleapis/googleapis/blob/master/google/type/date.proto
+       * 

+       *
+       * .google.type.Date date_value = 3;
+       *
+       * @return Whether the dateValue field is set.
+       */
+      @java.lang.Override
+      public boolean hasDateValue() {
+        return structuredValueCase_ == 3;
+      }
+      /**
+       *
+       *
+       * 
+       * Date value. Includes year, month, day. See also:
+       * https://github.com/googleapis/googleapis/blob/master/google/type/date.proto
+       * 

+       *
+       * .google.type.Date date_value = 3;
+       *
+       * @return The dateValue.
+       */
+      @java.lang.Override
+      public com.google.type.Date getDateValue() {
+        if (structuredValueCase_ == 3) {
+          return (com.google.type.Date) structuredValue_;
+        }
+        return com.google.type.Date.getDefaultInstance();
+      }
+      /**
+       *
+       *
+       * 
+       * Date value. Includes year, month, day. See also:
+       * https://github.com/googleapis/googleapis/blob/master/google/type/date.proto
+       * 

+       *
+       * .google.type.Date date_value = 3;
+       */
+      @java.lang.Override
+      public com.google.type.DateOrBuilder getDateValueOrBuilder() {
+        if (structuredValueCase_ == 3) {
+          return (com.google.type.Date) structuredValue_;
+        }
+        return com.google.type.Date.getDefaultInstance();
+      }
+
+      public static final int DATETIME_VALUE_FIELD_NUMBER = 4;
+      /**
+       *
+       *
+       * 
+       * DateTime value. Includes date, time, and timezone. See also:
+       * https://github.com/googleapis/googleapis/blob/master/google/type/datetime.proto
+       * 

+       *
+       * .google.type.DateTime datetime_value = 4;
+       *
+       * @return Whether the datetimeValue field is set.
+       */
+      @java.lang.Override
+      public boolean hasDatetimeValue() {
+        return structuredValueCase_ == 4;
+      }
+      /**
+       *
+       *
+       * 
+       * DateTime value. Includes date, time, and timezone. See also:
+       * https://github.com/googleapis/googleapis/blob/master/google/type/datetime.proto
+       * 

+       *
+       * .google.type.DateTime datetime_value = 4;
+       *
+       * @return The datetimeValue.
+       */
+      @java.lang.Override
+      public com.google.type.DateTime getDatetimeValue() {
+        if (structuredValueCase_ == 4) {
+          return (com.google.type.DateTime) structuredValue_;
+        }
+        return com.google.type.DateTime.getDefaultInstance();
+      }
+      /**
+       *
+       *
+       * 
+       * DateTime value. Includes date, time, and timezone. See also:
+       * https://github.com/googleapis/googleapis/blob/master/google/type/datetime.proto
+       * 

+       *
+       * .google.type.DateTime datetime_value = 4;
+       */
+      @java.lang.Override
+      public com.google.type.DateTimeOrBuilder getDatetimeValueOrBuilder() {
+        if (structuredValueCase_ == 4) {
+          return (com.google.type.DateTime) structuredValue_;
+        }
+        return com.google.type.DateTime.getDefaultInstance();
+      }
+
+      public static final int ADDRESS_VALUE_FIELD_NUMBER = 5;
+      /**
+       *
+       *
+       * 
+       * Postal address. See also:
+       * https://github.com/googleapis/googleapis/blob/master/google/type/postal_address.proto
+       * 

+       *
+       * .google.type.PostalAddress address_value = 5;
+       *
+       * @return Whether the addressValue field is set.
+       */
+      @java.lang.Override
+      public boolean hasAddressValue() {
+        return structuredValueCase_ == 5;
+      }
+      /**
+       *
+       *
+       * 
+       * Postal address. See also:
+       * https://github.com/googleapis/googleapis/blob/master/google/type/postal_address.proto
+       * 

+       *
+       * .google.type.PostalAddress address_value = 5;
+       *
+       * @return The addressValue.
+       */
+      @java.lang.Override
+      public com.google.type.PostalAddress getAddressValue() {
+        if (structuredValueCase_ == 5) {
+          return (com.google.type.PostalAddress) structuredValue_;
+        }
+        return com.google.type.PostalAddress.getDefaultInstance();
+      }
+      /**
+       *
+       *
+       * 
+       * Postal address. See also:
+       * https://github.com/googleapis/googleapis/blob/master/google/type/postal_address.proto
+       * 

+       *
+       * .google.type.PostalAddress address_value = 5;
+       */
+      @java.lang.Override
+      public com.google.type.PostalAddressOrBuilder getAddressValueOrBuilder() {
+        if (structuredValueCase_ == 5) {
+          return (com.google.type.PostalAddress) structuredValue_;
+        }
+        return com.google.type.PostalAddress.getDefaultInstance();
+      }
+
+      public static final int BOOLEAN_VALUE_FIELD_NUMBER = 6;
+      /**
+       *
+       *
+       * 
+       * Boolean value. Can be used for entities with binary values, or for
+       * checkboxes.
+       * 

+       *
+       * bool boolean_value = 6;
+       *
+       * @return Whether the booleanValue field is set.
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+        public Builder mergeFrom(
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+                    structuredValueCase_ = 4;
+                    break;
+                  } // case 34
+                case 42:
+                  {
+                    input.readMessage(
+                        getAddressValueFieldBuilder().getBuilder(), extensionRegistry);
+                    structuredValueCase_ = 5;
+                    break;
+                  } // case 42
+                case 48:
+                  {
+                    structuredValue_ = input.readBool();
+                    structuredValueCase_ = 6;
+                    break;
+                  } // case 48
+                case 56:
+                  {
+                    structuredValue_ = input.readInt32();
+                    structuredValueCase_ = 7;
+                    break;
+                  } // case 56
+                case 69:
+                  {
+                    structuredValue_ = input.readFloat();
+                    structuredValueCase_ = 8;
+                    break;
+                  } // case 69
+                default:
+                  {
+                    if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                      done = true; // was an endgroup tag
+                    }
+                    break;
+                  } // default:
+              } // switch (tag)
+            } // while (!done)
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.unwrapIOException();
+          } finally {
+            onChanged();
+          } // finally
+          return this;
+        }
+
+        private int structuredValueCase_ = 0;
+        private java.lang.Object structuredValue_;
+
+        public StructuredValueCase getStructuredValueCase() {
+          return StructuredValueCase.forNumber(structuredValueCase_);
+        }
+
+        public Builder clearStructuredValue() {
+          structuredValueCase_ = 0;
+          structuredValue_ = null;
+          onChanged();
+          return this;
+        }
+
+        private int bitField0_;
+
+        private com.google.protobuf.SingleFieldBuilderV3<
+                com.google.type.Money,
+                com.google.type.Money.Builder,
+                com.google.type.MoneyOrBuilder>
+            moneyValueBuilder_;
+        /**
+         *
+         *
+         * 
+         * Money value. See also:
+         * https://github.com/googleapis/googleapis/blob/master/google/type/money.proto
+         * 

+         *
+         * .google.type.Money money_value = 2;
+         *
+         * @return Whether the moneyValue field is set.
+         */
+        @java.lang.Override
+        public boolean hasMoneyValue() {
+          return structuredValueCase_ == 2;
+        }
+        /**
+         *
+         *
+         * 
+         * Money value. See also:
+         * https://github.com/googleapis/googleapis/blob/master/google/type/money.proto
+         * 

+         *
+         * .google.type.Money money_value = 2;
+         *
+         * @return The moneyValue.
+         */
+        @java.lang.Override
+        public com.google.type.Money getMoneyValue() {
+          if (moneyValueBuilder_ == null) {
+            if (structuredValueCase_ == 2) {
+              return (com.google.type.Money) structuredValue_;
+            }
+            return com.google.type.Money.getDefaultInstance();
+          } else {
+            if (structuredValueCase_ == 2) {
+              return moneyValueBuilder_.getMessage();
+            }
+            return com.google.type.Money.getDefaultInstance();
+          }
+        }
+        /**
+         *
+         *
+         * 
+         * Money value. See also:
+         * https://github.com/googleapis/googleapis/blob/master/google/type/money.proto
+         * 

+         *
+         * .google.type.Money money_value = 2;
+         */
+        public Builder setMoneyValue(com.google.type.Money value) {
+          if (moneyValueBuilder_ == null) {
+            if (value == null) {
+              throw new NullPointerException();
+            }
+            structuredValue_ = value;
+            onChanged();
+          } else {
+            moneyValueBuilder_.setMessage(value);
           }
+          structuredValueCase_ = 2;
           return this;
         }
         /**
          *
          *
          * 
-         * Body rows of the table.
+         * Money value. See also:
+         * https://github.com/googleapis/googleapis/blob/master/google/type/money.proto
          * 

          *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow body_rows = 3;
-         * 
+         * .google.type.Money money_value = 2;
          */
-        public Builder addBodyRows(
-            int index,
-            com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow.Builder
-                builderForValue) {
-          if (bodyRowsBuilder_ == null) {
-            ensureBodyRowsIsMutable();
-            bodyRows_.add(index, builderForValue.build());
+        public Builder setMoneyValue(com.google.type.Money.Builder builderForValue) {
+          if (moneyValueBuilder_ == null) {
+            structuredValue_ = builderForValue.build();
             onChanged();
           } else {
-            bodyRowsBuilder_.addMessage(index, builderForValue.build());
+            moneyValueBuilder_.setMessage(builderForValue.build());
           }
+          structuredValueCase_ = 2;
           return this;
         }
         /**
          *
          *
          * 
-         * Body rows of the table.
+         * Money value. See also:
+         * https://github.com/googleapis/googleapis/blob/master/google/type/money.proto
          * 

          *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow body_rows = 3;
-         * 
+         * .google.type.Money money_value = 2;
          */
-        public Builder addAllBodyRows(
-            java.lang.Iterable<
-                    ? extends com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow>
-                values) {
-          if (bodyRowsBuilder_ == null) {
-            ensureBodyRowsIsMutable();
-            com.google.protobuf.AbstractMessageLite.Builder.addAll(values, bodyRows_);
+        public Builder mergeMoneyValue(com.google.type.Money value) {
+          if (moneyValueBuilder_ == null) {
+            if (structuredValueCase_ == 2
+                && structuredValue_ != com.google.type.Money.getDefaultInstance()) {
+              structuredValue_ =
+                  com.google.type.Money.newBuilder((com.google.type.Money) structuredValue_)
+                      .mergeFrom(value)
+                      .buildPartial();
+            } else {
+              structuredValue_ = value;
+            }
             onChanged();
           } else {
-            bodyRowsBuilder_.addAllMessages(values);
+            if (structuredValueCase_ == 2) {
+              moneyValueBuilder_.mergeFrom(value);
+            } else {
+              moneyValueBuilder_.setMessage(value);
+            }
           }
+          structuredValueCase_ = 2;
           return this;
         }
         /**
          *
          *
          * 
-         * Body rows of the table.
+         * Money value. See also:
+         * https://github.com/googleapis/googleapis/blob/master/google/type/money.proto
          * 

          *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow body_rows = 3;
-         * 
+         * .google.type.Money money_value = 2;
          */
-        public Builder clearBodyRows() {
-          if (bodyRowsBuilder_ == null) {
-            bodyRows_ = java.util.Collections.emptyList();
-            bitField0_ = (bitField0_ & ~0x00000004);
-            onChanged();
+        public Builder clearMoneyValue() {
+          if (moneyValueBuilder_ == null) {
+            if (structuredValueCase_ == 2) {
+              structuredValueCase_ = 0;
+              structuredValue_ = null;
+              onChanged();
+            }
           } else {
-            bodyRowsBuilder_.clear();
+            if (structuredValueCase_ == 2) {
+              structuredValueCase_ = 0;
+              structuredValue_ = null;
+            }
+            moneyValueBuilder_.clear();
           }
           return this;
         }
@@ -21390,6524 +47870,5034 @@ public Builder clearBodyRows() {
          *
          *
          * 
-         * Body rows of the table.
+         * Money value. See also:
+         * https://github.com/googleapis/googleapis/blob/master/google/type/money.proto
          * 

          *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow body_rows = 3;
-         * 
+         * .google.type.Money money_value = 2;
          */
-        public Builder removeBodyRows(int index) {
-          if (bodyRowsBuilder_ == null) {
-            ensureBodyRowsIsMutable();
-            bodyRows_.remove(index);
+        public com.google.type.Money.Builder getMoneyValueBuilder() {
+          return getMoneyValueFieldBuilder().getBuilder();
+        }
+        /**
+         *
+         *
+         * 
+         * Money value. See also:
+         * https://github.com/googleapis/googleapis/blob/master/google/type/money.proto
+         * 

+         *
+         * .google.type.Money money_value = 2;
+         */
+        @java.lang.Override
+        public com.google.type.MoneyOrBuilder getMoneyValueOrBuilder() {
+          if ((structuredValueCase_ == 2) && (moneyValueBuilder_ != null)) {
+            return moneyValueBuilder_.getMessageOrBuilder();
+          } else {
+            if (structuredValueCase_ == 2) {
+              return (com.google.type.Money) structuredValue_;
+            }
+            return com.google.type.Money.getDefaultInstance();
+          }
+        }
+        /**
+         *
+         *
+         * 
+         * Money value. See also:
+         * https://github.com/googleapis/googleapis/blob/master/google/type/money.proto
+         * 

+         *
+         * .google.type.Money money_value = 2;
+         */
+        private com.google.protobuf.SingleFieldBuilderV3<
+                com.google.type.Money,
+                com.google.type.Money.Builder,
+                com.google.type.MoneyOrBuilder>
+            getMoneyValueFieldBuilder() {
+          if (moneyValueBuilder_ == null) {
+            if (!(structuredValueCase_ == 2)) {
+              structuredValue_ = com.google.type.Money.getDefaultInstance();
+            }
+            moneyValueBuilder_ =
+                new com.google.protobuf.SingleFieldBuilderV3<
+                    com.google.type.Money,
+                    com.google.type.Money.Builder,
+                    com.google.type.MoneyOrBuilder>(
+                    (com.google.type.Money) structuredValue_, getParentForChildren(), isClean());
+            structuredValue_ = null;
+          }
+          structuredValueCase_ = 2;
+          onChanged();
+          return moneyValueBuilder_;
+        }
+
+        private com.google.protobuf.SingleFieldBuilderV3<
+                com.google.type.Date, com.google.type.Date.Builder, com.google.type.DateOrBuilder>
+            dateValueBuilder_;
+        /**
+         *
+         *
+         * 
+         * Date value. Includes year, month, day. See also:
+         * https://github.com/googleapis/googleapis/blob/master/google/type/date.proto
+         * 

+         *
+         * .google.type.Date date_value = 3;
+         *
+         * @return Whether the dateValue field is set.
+         */
+        @java.lang.Override
+        public boolean hasDateValue() {
+          return structuredValueCase_ == 3;
+        }
+        /**
+         *
+         *
+         * 
+         * Date value. Includes year, month, day. See also:
+         * https://github.com/googleapis/googleapis/blob/master/google/type/date.proto
+         * 

+         *
+         * .google.type.Date date_value = 3;
+         *
+         * @return The dateValue.
+         */
+        @java.lang.Override
+        public com.google.type.Date getDateValue() {
+          if (dateValueBuilder_ == null) {
+            if (structuredValueCase_ == 3) {
+              return (com.google.type.Date) structuredValue_;
+            }
+            return com.google.type.Date.getDefaultInstance();
+          } else {
+            if (structuredValueCase_ == 3) {
+              return dateValueBuilder_.getMessage();
+            }
+            return com.google.type.Date.getDefaultInstance();
+          }
+        }
+        /**
+         *
+         *
+         * 
+         * Date value. Includes year, month, day. See also:
+         * https://github.com/googleapis/googleapis/blob/master/google/type/date.proto
+         * 

+         *
+         * .google.type.Date date_value = 3;
+         */
+        public Builder setDateValue(com.google.type.Date value) {
+          if (dateValueBuilder_ == null) {
+            if (value == null) {
+              throw new NullPointerException();
+            }
+            structuredValue_ = value;
             onChanged();
           } else {
-            bodyRowsBuilder_.remove(index);
+            dateValueBuilder_.setMessage(value);
           }
+          structuredValueCase_ = 3;
           return this;
         }
         /**
          *
          *
          * 
-         * Body rows of the table.
+         * Date value. Includes year, month, day. See also:
+         * https://github.com/googleapis/googleapis/blob/master/google/type/date.proto
          * 

          *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow body_rows = 3;
-         * 
+         * .google.type.Date date_value = 3;
          */
-        public com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow.Builder
-            getBodyRowsBuilder(int index) {
-          return getBodyRowsFieldBuilder().getBuilder(index);
+        public Builder setDateValue(com.google.type.Date.Builder builderForValue) {
+          if (dateValueBuilder_ == null) {
+            structuredValue_ = builderForValue.build();
+            onChanged();
+          } else {
+            dateValueBuilder_.setMessage(builderForValue.build());
+          }
+          structuredValueCase_ = 3;
+          return this;
         }
         /**
          *
          *
          * 
-         * Body rows of the table.
+         * Date value. Includes year, month, day. See also:
+         * https://github.com/googleapis/googleapis/blob/master/google/type/date.proto
          * 

          *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow body_rows = 3;
-         * 
+         * .google.type.Date date_value = 3;
          */
-        public com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRowOrBuilder
-            getBodyRowsOrBuilder(int index) {
-          if (bodyRowsBuilder_ == null) {
-            return bodyRows_.get(index);
+        public Builder mergeDateValue(com.google.type.Date value) {
+          if (dateValueBuilder_ == null) {
+            if (structuredValueCase_ == 3
+                && structuredValue_ != com.google.type.Date.getDefaultInstance()) {
+              structuredValue_ =
+                  com.google.type.Date.newBuilder((com.google.type.Date) structuredValue_)
+                      .mergeFrom(value)
+                      .buildPartial();
+            } else {
+              structuredValue_ = value;
+            }
+            onChanged();
           } else {
-            return bodyRowsBuilder_.getMessageOrBuilder(index);
+            if (structuredValueCase_ == 3) {
+              dateValueBuilder_.mergeFrom(value);
+            } else {
+              dateValueBuilder_.setMessage(value);
+            }
           }
+          structuredValueCase_ = 3;
+          return this;
         }
         /**
          *
          *
          * 
-         * Body rows of the table.
+         * Date value. Includes year, month, day. See also:
+         * https://github.com/googleapis/googleapis/blob/master/google/type/date.proto
          * 

          *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow body_rows = 3;
-         * 
+         * .google.type.Date date_value = 3;
          */
-        public java.util.List<
-                ? extends com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRowOrBuilder>
-            getBodyRowsOrBuilderList() {
-          if (bodyRowsBuilder_ != null) {
-            return bodyRowsBuilder_.getMessageOrBuilderList();
+        public Builder clearDateValue() {
+          if (dateValueBuilder_ == null) {
+            if (structuredValueCase_ == 3) {
+              structuredValueCase_ = 0;
+              structuredValue_ = null;
+              onChanged();
+            }
           } else {
-            return java.util.Collections.unmodifiableList(bodyRows_);
+            if (structuredValueCase_ == 3) {
+              structuredValueCase_ = 0;
+              structuredValue_ = null;
+            }
+            dateValueBuilder_.clear();
           }
+          return this;
         }
         /**
          *
          *
          * 
-         * Body rows of the table.
+         * Date value. Includes year, month, day. See also:
+         * https://github.com/googleapis/googleapis/blob/master/google/type/date.proto
          * 

          *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow body_rows = 3;
-         * 
+         * .google.type.Date date_value = 3;
          */
-        public com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow.Builder
-            addBodyRowsBuilder() {
-          return getBodyRowsFieldBuilder()
-              .addBuilder(
-                  com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow
-                      .getDefaultInstance());
+        public com.google.type.Date.Builder getDateValueBuilder() {
+          return getDateValueFieldBuilder().getBuilder();
         }
         /**
          *
          *
          * 
-         * Body rows of the table.
+         * Date value. Includes year, month, day. See also:
+         * https://github.com/googleapis/googleapis/blob/master/google/type/date.proto
          * 

          *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow body_rows = 3;
-         * 
+         * .google.type.Date date_value = 3;
          */
-        public com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow.Builder
-            addBodyRowsBuilder(int index) {
-          return getBodyRowsFieldBuilder()
-              .addBuilder(
-                  index,
-                  com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow
-                      .getDefaultInstance());
+        @java.lang.Override
+        public com.google.type.DateOrBuilder getDateValueOrBuilder() {
+          if ((structuredValueCase_ == 3) && (dateValueBuilder_ != null)) {
+            return dateValueBuilder_.getMessageOrBuilder();
+          } else {
+            if (structuredValueCase_ == 3) {
+              return (com.google.type.Date) structuredValue_;
+            }
+            return com.google.type.Date.getDefaultInstance();
+          }
         }
         /**
          *
          *
          * 
-         * Body rows of the table.
+         * Date value. Includes year, month, day. See also:
+         * https://github.com/googleapis/googleapis/blob/master/google/type/date.proto
          * 

          *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.Table.TableRow body_rows = 3;
-         * 
+         * .google.type.Date date_value = 3;
          */
-        public java.util.List<
-                com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow.Builder>
-            getBodyRowsBuilderList() {
-          return getBodyRowsFieldBuilder().getBuilderList();
+        private com.google.protobuf.SingleFieldBuilderV3<
+                com.google.type.Date, com.google.type.Date.Builder, com.google.type.DateOrBuilder>
+            getDateValueFieldBuilder() {
+          if (dateValueBuilder_ == null) {
+            if (!(structuredValueCase_ == 3)) {
+              structuredValue_ = com.google.type.Date.getDefaultInstance();
+            }
+            dateValueBuilder_ =
+                new com.google.protobuf.SingleFieldBuilderV3<
+                    com.google.type.Date,
+                    com.google.type.Date.Builder,
+                    com.google.type.DateOrBuilder>(
+                    (com.google.type.Date) structuredValue_, getParentForChildren(), isClean());
+            structuredValue_ = null;
+          }
+          structuredValueCase_ = 3;
+          onChanged();
+          return dateValueBuilder_;
         }
 
-        private com.google.protobuf.RepeatedFieldBuilderV3<
-                com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow,
-                com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow.Builder,
-                com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRowOrBuilder>
-            getBodyRowsFieldBuilder() {
-          if (bodyRowsBuilder_ == null) {
-            bodyRowsBuilder_ =
-                new com.google.protobuf.RepeatedFieldBuilderV3<
-                    com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow,
-                    com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRow.Builder,
-                    com.google.cloud.documentai.v1beta2.Document.Page.Table.TableRowOrBuilder>(
-                    bodyRows_, ((bitField0_ & 0x00000004) != 0), getParentForChildren(), isClean());
-            bodyRows_ = null;
+        private com.google.protobuf.SingleFieldBuilderV3<
+                com.google.type.DateTime,
+                com.google.type.DateTime.Builder,
+                com.google.type.DateTimeOrBuilder>
+            datetimeValueBuilder_;
+        /**
+         *
+         *
+         * 
+         * DateTime value. Includes date, time, and timezone. See also:
+         * https://github.com/googleapis/googleapis/blob/master/google/type/datetime.proto
+         * 

+         *
+         * .google.type.DateTime datetime_value = 4;
+         *
+         * @return Whether the datetimeValue field is set.
+         */
+        @java.lang.Override
+        public boolean hasDatetimeValue() {
+          return structuredValueCase_ == 4;
+        }
+        /**
+         *
+         *
+         * 
+         * DateTime value. Includes date, time, and timezone. See also:
+         * https://github.com/googleapis/googleapis/blob/master/google/type/datetime.proto
+         * 

+         *
+         * .google.type.DateTime datetime_value = 4;
+         *
+         * @return The datetimeValue.
+         */
+        @java.lang.Override
+        public com.google.type.DateTime getDatetimeValue() {
+          if (datetimeValueBuilder_ == null) {
+            if (structuredValueCase_ == 4) {
+              return (com.google.type.DateTime) structuredValue_;
+            }
+            return com.google.type.DateTime.getDefaultInstance();
+          } else {
+            if (structuredValueCase_ == 4) {
+              return datetimeValueBuilder_.getMessage();
+            }
+            return com.google.type.DateTime.getDefaultInstance();
           }
-          return bodyRowsBuilder_;
         }
-
-        private java.util.List
-            detectedLanguages_ = java.util.Collections.emptyList();
-
-        private void ensureDetectedLanguagesIsMutable() {
-          if (!((bitField0_ & 0x00000008) != 0)) {
-            detectedLanguages_ =
-                new java.util.ArrayList<
-                    com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage>(
-                    detectedLanguages_);
-            bitField0_ |= 0x00000008;
+        /**
+         *
+         *
+         * 
+         * DateTime value. Includes date, time, and timezone. See also:
+         * https://github.com/googleapis/googleapis/blob/master/google/type/datetime.proto
+         * 

+         *
+         * .google.type.DateTime datetime_value = 4;
+         */
+        public Builder setDatetimeValue(com.google.type.DateTime value) {
+          if (datetimeValueBuilder_ == null) {
+            if (value == null) {
+              throw new NullPointerException();
+            }
+            structuredValue_ = value;
+            onChanged();
+          } else {
+            datetimeValueBuilder_.setMessage(value);
           }
+          structuredValueCase_ = 4;
+          return this;
         }
-
-        private com.google.protobuf.RepeatedFieldBuilderV3<
-                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage,
-                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder,
-                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>
-            detectedLanguagesBuilder_;
-
         /**
          *
          *
          * 
-         * A list of detected languages together with confidence.
+         * DateTime value. Includes date, time, and timezone. See also:
+         * https://github.com/googleapis/googleapis/blob/master/google/type/datetime.proto
          * 

          *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
-         * 
+         * .google.type.DateTime datetime_value = 4;
          */
-        public java.util.List
-            getDetectedLanguagesList() {
-          if (detectedLanguagesBuilder_ == null) {
-            return java.util.Collections.unmodifiableList(detectedLanguages_);
+        public Builder setDatetimeValue(com.google.type.DateTime.Builder builderForValue) {
+          if (datetimeValueBuilder_ == null) {
+            structuredValue_ = builderForValue.build();
+            onChanged();
           } else {
-            return detectedLanguagesBuilder_.getMessageList();
+            datetimeValueBuilder_.setMessage(builderForValue.build());
           }
+          structuredValueCase_ = 4;
+          return this;
         }
         /**
          *
          *
          * 
-         * A list of detected languages together with confidence.
+         * DateTime value. Includes date, time, and timezone. See also:
+         * https://github.com/googleapis/googleapis/blob/master/google/type/datetime.proto
          * 

          *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
-         * 
+         * .google.type.DateTime datetime_value = 4;
          */
-        public int getDetectedLanguagesCount() {
-          if (detectedLanguagesBuilder_ == null) {
-            return detectedLanguages_.size();
+        public Builder mergeDatetimeValue(com.google.type.DateTime value) {
+          if (datetimeValueBuilder_ == null) {
+            if (structuredValueCase_ == 4
+                && structuredValue_ != com.google.type.DateTime.getDefaultInstance()) {
+              structuredValue_ =
+                  com.google.type.DateTime.newBuilder((com.google.type.DateTime) structuredValue_)
+                      .mergeFrom(value)
+                      .buildPartial();
+            } else {
+              structuredValue_ = value;
+            }
+            onChanged();
           } else {
-            return detectedLanguagesBuilder_.getCount();
+            if (structuredValueCase_ == 4) {
+              datetimeValueBuilder_.mergeFrom(value);
+            } else {
+              datetimeValueBuilder_.setMessage(value);
+            }
           }
+          structuredValueCase_ = 4;
+          return this;
         }
         /**
          *
          *
          * 
-         * A list of detected languages together with confidence.
+         * DateTime value. Includes date, time, and timezone. See also:
+         * https://github.com/googleapis/googleapis/blob/master/google/type/datetime.proto
          * 

          *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
-         * 
+         * .google.type.DateTime datetime_value = 4;
          */
-        public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage
-            getDetectedLanguages(int index) {
-          if (detectedLanguagesBuilder_ == null) {
-            return detectedLanguages_.get(index);
+        public Builder clearDatetimeValue() {
+          if (datetimeValueBuilder_ == null) {
+            if (structuredValueCase_ == 4) {
+              structuredValueCase_ = 0;
+              structuredValue_ = null;
+              onChanged();
+            }
           } else {
-            return detectedLanguagesBuilder_.getMessage(index);
+            if (structuredValueCase_ == 4) {
+              structuredValueCase_ = 0;
+              structuredValue_ = null;
+            }
+            datetimeValueBuilder_.clear();
           }
+          return this;
         }
         /**
          *
          *
          * 
-         * A list of detected languages together with confidence.
+         * DateTime value. Includes date, time, and timezone. See also:
+         * https://github.com/googleapis/googleapis/blob/master/google/type/datetime.proto
          * 

          *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
-         * 
+         * .google.type.DateTime datetime_value = 4;
          */
-        public Builder setDetectedLanguages(
-            int index, com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value) {
-          if (detectedLanguagesBuilder_ == null) {
+        public com.google.type.DateTime.Builder getDatetimeValueBuilder() {
+          return getDatetimeValueFieldBuilder().getBuilder();
+        }
+        /**
+         *
+         *
+         * 
+         * DateTime value. Includes date, time, and timezone. See also:
+         * https://github.com/googleapis/googleapis/blob/master/google/type/datetime.proto
+         * 

+         *
+         * .google.type.DateTime datetime_value = 4;
+         */
+        @java.lang.Override
+        public com.google.type.DateTimeOrBuilder getDatetimeValueOrBuilder() {
+          if ((structuredValueCase_ == 4) && (datetimeValueBuilder_ != null)) {
+            return datetimeValueBuilder_.getMessageOrBuilder();
+          } else {
+            if (structuredValueCase_ == 4) {
+              return (com.google.type.DateTime) structuredValue_;
+            }
+            return com.google.type.DateTime.getDefaultInstance();
+          }
+        }
+        /**
+         *
+         *
+         * 
+         * DateTime value. Includes date, time, and timezone. See also:
+         * https://github.com/googleapis/googleapis/blob/master/google/type/datetime.proto
+         * 

+         *
+         * .google.type.DateTime datetime_value = 4;
+         */
+        private com.google.protobuf.SingleFieldBuilderV3<
+                com.google.type.DateTime,
+                com.google.type.DateTime.Builder,
+                com.google.type.DateTimeOrBuilder>
+            getDatetimeValueFieldBuilder() {
+          if (datetimeValueBuilder_ == null) {
+            if (!(structuredValueCase_ == 4)) {
+              structuredValue_ = com.google.type.DateTime.getDefaultInstance();
+            }
+            datetimeValueBuilder_ =
+                new com.google.protobuf.SingleFieldBuilderV3<
+                    com.google.type.DateTime,
+                    com.google.type.DateTime.Builder,
+                    com.google.type.DateTimeOrBuilder>(
+                    (com.google.type.DateTime) structuredValue_, getParentForChildren(), isClean());
+            structuredValue_ = null;
+          }
+          structuredValueCase_ = 4;
+          onChanged();
+          return datetimeValueBuilder_;
+        }
+
+        private com.google.protobuf.SingleFieldBuilderV3<
+                com.google.type.PostalAddress,
+                com.google.type.PostalAddress.Builder,
+                com.google.type.PostalAddressOrBuilder>
+            addressValueBuilder_;
+        /**
+         *
+         *
+         * 
+         * Postal address. See also:
+         * https://github.com/googleapis/googleapis/blob/master/google/type/postal_address.proto
+         * 

+         *
+         * .google.type.PostalAddress address_value = 5;
+         *
+         * @return Whether the addressValue field is set.
+         */
+        @java.lang.Override
+        public boolean hasAddressValue() {
+          return structuredValueCase_ == 5;
+        }
+        /**
+         *
+         *
+         * 
+         * Postal address. See also:
+         * https://github.com/googleapis/googleapis/blob/master/google/type/postal_address.proto
+         * 

+         *
+         * .google.type.PostalAddress address_value = 5;
+         *
+         * @return The addressValue.
+         */
+        @java.lang.Override
+        public com.google.type.PostalAddress getAddressValue() {
+          if (addressValueBuilder_ == null) {
+            if (structuredValueCase_ == 5) {
+              return (com.google.type.PostalAddress) structuredValue_;
+            }
+            return com.google.type.PostalAddress.getDefaultInstance();
+          } else {
+            if (structuredValueCase_ == 5) {
+              return addressValueBuilder_.getMessage();
+            }
+            return com.google.type.PostalAddress.getDefaultInstance();
+          }
+        }
+        /**
+         *
+         *
+         * 
+         * Postal address. See also:
+         * https://github.com/googleapis/googleapis/blob/master/google/type/postal_address.proto
+         * 

+         *
+         * .google.type.PostalAddress address_value = 5;
+         */
+        public Builder setAddressValue(com.google.type.PostalAddress value) {
+          if (addressValueBuilder_ == null) {
             if (value == null) {
               throw new NullPointerException();
             }
-            ensureDetectedLanguagesIsMutable();
-            detectedLanguages_.set(index, value);
+            structuredValue_ = value;
             onChanged();
           } else {
-            detectedLanguagesBuilder_.setMessage(index, value);
+            addressValueBuilder_.setMessage(value);
           }
+          structuredValueCase_ = 5;
           return this;
         }
         /**
          *
          *
          * 
-         * A list of detected languages together with confidence.
+         * Postal address. See also:
+         * https://github.com/googleapis/googleapis/blob/master/google/type/postal_address.proto
          * 

          *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
-         * 
+         * .google.type.PostalAddress address_value = 5;
          */
-        public Builder setDetectedLanguages(
-            int index,
-            com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
-                builderForValue) {
-          if (detectedLanguagesBuilder_ == null) {
-            ensureDetectedLanguagesIsMutable();
-            detectedLanguages_.set(index, builderForValue.build());
+        public Builder setAddressValue(com.google.type.PostalAddress.Builder builderForValue) {
+          if (addressValueBuilder_ == null) {
+            structuredValue_ = builderForValue.build();
             onChanged();
           } else {
-            detectedLanguagesBuilder_.setMessage(index, builderForValue.build());
+            addressValueBuilder_.setMessage(builderForValue.build());
           }
+          structuredValueCase_ = 5;
           return this;
         }
         /**
          *
          *
          * 
-         * A list of detected languages together with confidence.
+         * Postal address. See also:
+         * https://github.com/googleapis/googleapis/blob/master/google/type/postal_address.proto
          * 

          *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
-         * 
+         * .google.type.PostalAddress address_value = 5;
          */
-        public Builder addDetectedLanguages(
-            com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value) {
-          if (detectedLanguagesBuilder_ == null) {
-            if (value == null) {
-              throw new NullPointerException();
+        public Builder mergeAddressValue(com.google.type.PostalAddress value) {
+          if (addressValueBuilder_ == null) {
+            if (structuredValueCase_ == 5
+                && structuredValue_ != com.google.type.PostalAddress.getDefaultInstance()) {
+              structuredValue_ =
+                  com.google.type.PostalAddress.newBuilder(
+                          (com.google.type.PostalAddress) structuredValue_)
+                      .mergeFrom(value)
+                      .buildPartial();
+            } else {
+              structuredValue_ = value;
             }
-            ensureDetectedLanguagesIsMutable();
-            detectedLanguages_.add(value);
             onChanged();
           } else {
-            detectedLanguagesBuilder_.addMessage(value);
+            if (structuredValueCase_ == 5) {
+              addressValueBuilder_.mergeFrom(value);
+            } else {
+              addressValueBuilder_.setMessage(value);
+            }
+          }
+          structuredValueCase_ = 5;
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * Postal address. See also:
+         * https://github.com/googleapis/googleapis/blob/master/google/type/postal_address.proto
+         * 

+         *
+         * .google.type.PostalAddress address_value = 5;
+         */
+        public Builder clearAddressValue() {
+          if (addressValueBuilder_ == null) {
+            if (structuredValueCase_ == 5) {
+              structuredValueCase_ = 0;
+              structuredValue_ = null;
+              onChanged();
+            }
+          } else {
+            if (structuredValueCase_ == 5) {
+              structuredValueCase_ = 0;
+              structuredValue_ = null;
+            }
+            addressValueBuilder_.clear();
+          }
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * Postal address. See also:
+         * https://github.com/googleapis/googleapis/blob/master/google/type/postal_address.proto
+         * 

+         *
+         * .google.type.PostalAddress address_value = 5;
+         */
+        public com.google.type.PostalAddress.Builder getAddressValueBuilder() {
+          return getAddressValueFieldBuilder().getBuilder();
+        }
+        /**
+         *
+         *
+         * 
+         * Postal address. See also:
+         * https://github.com/googleapis/googleapis/blob/master/google/type/postal_address.proto
+         * 

+         *
+         * .google.type.PostalAddress address_value = 5;
+         */
+        @java.lang.Override
+        public com.google.type.PostalAddressOrBuilder getAddressValueOrBuilder() {
+          if ((structuredValueCase_ == 5) && (addressValueBuilder_ != null)) {
+            return addressValueBuilder_.getMessageOrBuilder();
+          } else {
+            if (structuredValueCase_ == 5) {
+              return (com.google.type.PostalAddress) structuredValue_;
+            }
+            return com.google.type.PostalAddress.getDefaultInstance();
+          }
+        }
+        /**
+         *
+         *
+         * 
+         * Postal address. See also:
+         * https://github.com/googleapis/googleapis/blob/master/google/type/postal_address.proto
+         * 

+         *
+         * .google.type.PostalAddress address_value = 5;
+         */
+        private com.google.protobuf.SingleFieldBuilderV3<
+                com.google.type.PostalAddress,
+                com.google.type.PostalAddress.Builder,
+                com.google.type.PostalAddressOrBuilder>
+            getAddressValueFieldBuilder() {
+          if (addressValueBuilder_ == null) {
+            if (!(structuredValueCase_ == 5)) {
+              structuredValue_ = com.google.type.PostalAddress.getDefaultInstance();
+            }
+            addressValueBuilder_ =
+                new com.google.protobuf.SingleFieldBuilderV3<
+                    com.google.type.PostalAddress,
+                    com.google.type.PostalAddress.Builder,
+                    com.google.type.PostalAddressOrBuilder>(
+                    (com.google.type.PostalAddress) structuredValue_,
+                    getParentForChildren(),
+                    isClean());
+            structuredValue_ = null;
+          }
+          structuredValueCase_ = 5;
+          onChanged();
+          return addressValueBuilder_;
+        }
+
+        /**
+         *
+         *
+         * 
+         * Boolean value. Can be used for entities with binary values, or for
+         * checkboxes.
+         * 

+         *
+         * bool boolean_value = 6;
+         *
+         * @return Whether the booleanValue field is set.
+         */
+        public boolean hasBooleanValue() {
+          return structuredValueCase_ == 6;
+        }
+        /**
+         *
+         *
+         * 
+         * Boolean value. Can be used for entities with binary values, or for
+         * checkboxes.
+         * 

+         *
+         * bool boolean_value = 6;
+         *
+         * @return The booleanValue.
+         */
+        public boolean getBooleanValue() {
+          if (structuredValueCase_ == 6) {
+            return (java.lang.Boolean) structuredValue_;
+          }
+          return false;
+        }
+        /**
+         *
+         *
+         * 
+         * Boolean value. Can be used for entities with binary values, or for
+         * checkboxes.
+         * 

+         *
+         * bool boolean_value = 6;
+         *
+         * @param value The booleanValue to set.
+         * @return This builder for chaining.
+         */
+        public Builder setBooleanValue(boolean value) {
+
+          structuredValueCase_ = 6;
+          structuredValue_ = value;
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * Boolean value. Can be used for entities with binary values, or for
+         * checkboxes.
+         * 

+         *
+         * bool boolean_value = 6;
+         *
+         * @return This builder for chaining.
+         */
+        public Builder clearBooleanValue() {
+          if (structuredValueCase_ == 6) {
+            structuredValueCase_ = 0;
+            structuredValue_ = null;
+            onChanged();
           }
           return this;
         }
+
+        /**
+         *
+         *
+         * 
+         * Integer value.
+         * 

+         *
+         * int32 integer_value = 7;
+         *
+         * @return Whether the integerValue field is set.
+         */
+        public boolean hasIntegerValue() {
+          return structuredValueCase_ == 7;
+        }
         /**
          *
          *
          * 
-         * A list of detected languages together with confidence.
+         * Integer value.
          * 

          *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
-         * 
+         * int32 integer_value = 7;
+         *
+         * @return The integerValue.
          */
-        public Builder addDetectedLanguages(
-            int index, com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value) {
-          if (detectedLanguagesBuilder_ == null) {
-            if (value == null) {
-              throw new NullPointerException();
-            }
-            ensureDetectedLanguagesIsMutable();
-            detectedLanguages_.add(index, value);
-            onChanged();
-          } else {
-            detectedLanguagesBuilder_.addMessage(index, value);
+        public int getIntegerValue() {
+          if (structuredValueCase_ == 7) {
+            return (java.lang.Integer) structuredValue_;
           }
-          return this;
+          return 0;
         }
         /**
          *
          *
          * 
-         * A list of detected languages together with confidence.
+         * Integer value.
          * 

          *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
-         * 
+         * int32 integer_value = 7;
+         *
+         * @param value The integerValue to set.
+         * @return This builder for chaining.
          */
-        public Builder addDetectedLanguages(
-            com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
-                builderForValue) {
-          if (detectedLanguagesBuilder_ == null) {
-            ensureDetectedLanguagesIsMutable();
-            detectedLanguages_.add(builderForValue.build());
-            onChanged();
-          } else {
-            detectedLanguagesBuilder_.addMessage(builderForValue.build());
-          }
+        public Builder setIntegerValue(int value) {
+
+          structuredValueCase_ = 7;
+          structuredValue_ = value;
+          onChanged();
           return this;
         }
         /**
          *
          *
          * 
-         * A list of detected languages together with confidence.
+         * Integer value.
          * 

          *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
-         * 
+         * int32 integer_value = 7;
+         *
+         * @return This builder for chaining.
          */
-        public Builder addDetectedLanguages(
-            int index,
-            com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
-                builderForValue) {
-          if (detectedLanguagesBuilder_ == null) {
-            ensureDetectedLanguagesIsMutable();
-            detectedLanguages_.add(index, builderForValue.build());
+        public Builder clearIntegerValue() {
+          if (structuredValueCase_ == 7) {
+            structuredValueCase_ = 0;
+            structuredValue_ = null;
             onChanged();
-          } else {
-            detectedLanguagesBuilder_.addMessage(index, builderForValue.build());
           }
           return this;
         }
+
         /**
          *
          *
          * 
-         * A list of detected languages together with confidence.
+         * Float value.
          * 

          *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
-         * 
+         * float float_value = 8;
+         *
+         * @return Whether the floatValue field is set.
          */
-        public Builder addAllDetectedLanguages(
-            java.lang.Iterable<
-                    ? extends com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage>
-                values) {
-          if (detectedLanguagesBuilder_ == null) {
-            ensureDetectedLanguagesIsMutable();
-            com.google.protobuf.AbstractMessageLite.Builder.addAll(values, detectedLanguages_);
-            onChanged();
-          } else {
-            detectedLanguagesBuilder_.addAllMessages(values);
-          }
-          return this;
+        public boolean hasFloatValue() {
+          return structuredValueCase_ == 8;
         }
         /**
          *
          *
          * 
-         * A list of detected languages together with confidence.
+         * Float value.
          * 

          *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
-         * 
+         * float float_value = 8;
+         *
+         * @return The floatValue.
          */
-        public Builder clearDetectedLanguages() {
-          if (detectedLanguagesBuilder_ == null) {
-            detectedLanguages_ = java.util.Collections.emptyList();
-            bitField0_ = (bitField0_ & ~0x00000008);
-            onChanged();
-          } else {
-            detectedLanguagesBuilder_.clear();
+        public float getFloatValue() {
+          if (structuredValueCase_ == 8) {
+            return (java.lang.Float) structuredValue_;
           }
-          return this;
+          return 0F;
         }
         /**
          *
          *
          * 
-         * A list of detected languages together with confidence.
+         * Float value.
          * 

          *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
-         * 
+         * float float_value = 8;
+         *
+         * @param value The floatValue to set.
+         * @return This builder for chaining.
          */
-        public Builder removeDetectedLanguages(int index) {
-          if (detectedLanguagesBuilder_ == null) {
-            ensureDetectedLanguagesIsMutable();
-            detectedLanguages_.remove(index);
-            onChanged();
-          } else {
-            detectedLanguagesBuilder_.remove(index);
-          }
+        public Builder setFloatValue(float value) {
+
+          structuredValueCase_ = 8;
+          structuredValue_ = value;
+          onChanged();
           return this;
         }
         /**
          *
          *
          * 
-         * A list of detected languages together with confidence.
+         * Float value.
          * 

          *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
-         * 
+         * float float_value = 8;
+         *
+         * @return This builder for chaining.
          */
-        public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
-            getDetectedLanguagesBuilder(int index) {
-          return getDetectedLanguagesFieldBuilder().getBuilder(index);
+        public Builder clearFloatValue() {
+          if (structuredValueCase_ == 8) {
+            structuredValueCase_ = 0;
+            structuredValue_ = null;
+            onChanged();
+          }
+          return this;
         }
+
+        private java.lang.Object text_ = "";
         /**
          *
          *
          * 
-         * A list of detected languages together with confidence.
+         * Optional. An optional field to store a normalized string.
+         * For some entity types, one of respective `structured_value` fields may
+         * also be populated. Also not all the types of `structured_value` will be
+         * normalized. For example, some processors may not generate `float`
+         * or `integer` normalized text by default.
+         *
+         * Below are sample formats mapped to structured values.
+         *
+         * - Money/Currency type (`money_value`) is in the ISO 4217 text format.
+         * - Date type (`date_value`) is in the ISO 8601 text format.
+         * - Datetime type (`datetime_value`) is in the ISO 8601 text format.
          * 

          *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
-         * 
+         * string text = 1 [(.google.api.field_behavior) = OPTIONAL];
+         *
+         * @return The text.
          */
-        public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder
-            getDetectedLanguagesOrBuilder(int index) {
-          if (detectedLanguagesBuilder_ == null) {
-            return detectedLanguages_.get(index);
+        public java.lang.String getText() {
+          java.lang.Object ref = text_;
+          if (!(ref instanceof java.lang.String)) {
+            com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+            java.lang.String s = bs.toStringUtf8();
+            text_ = s;
+            return s;
           } else {
-            return detectedLanguagesBuilder_.getMessageOrBuilder(index);
+            return (java.lang.String) ref;
           }
         }
         /**
          *
          *
          * 
-         * A list of detected languages together with confidence.
+         * Optional. An optional field to store a normalized string.
+         * For some entity types, one of respective `structured_value` fields may
+         * also be populated. Also not all the types of `structured_value` will be
+         * normalized. For example, some processors may not generate `float`
+         * or `integer` normalized text by default.
+         *
+         * Below are sample formats mapped to structured values.
+         *
+         * - Money/Currency type (`money_value`) is in the ISO 4217 text format.
+         * - Date type (`date_value`) is in the ISO 8601 text format.
+         * - Datetime type (`datetime_value`) is in the ISO 8601 text format.
          * 

          *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
-         * 
+         * string text = 1 [(.google.api.field_behavior) = OPTIONAL];
+         *
+         * @return The bytes for text.
          */
-        public java.util.List<
-                ? extends
-                    com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>
-            getDetectedLanguagesOrBuilderList() {
-          if (detectedLanguagesBuilder_ != null) {
-            return detectedLanguagesBuilder_.getMessageOrBuilderList();
+        public com.google.protobuf.ByteString getTextBytes() {
+          java.lang.Object ref = text_;
+          if (ref instanceof String) {
+            com.google.protobuf.ByteString b =
+                com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+            text_ = b;
+            return b;
           } else {
-            return java.util.Collections.unmodifiableList(detectedLanguages_);
+            return (com.google.protobuf.ByteString) ref;
           }
         }
         /**
          *
          *
          * 
-         * A list of detected languages together with confidence.
+         * Optional. An optional field to store a normalized string.
+         * For some entity types, one of respective `structured_value` fields may
+         * also be populated. Also not all the types of `structured_value` will be
+         * normalized. For example, some processors may not generate `float`
+         * or `integer` normalized text by default.
+         *
+         * Below are sample formats mapped to structured values.
+         *
+         * - Money/Currency type (`money_value`) is in the ISO 4217 text format.
+         * - Date type (`date_value`) is in the ISO 8601 text format.
+         * - Datetime type (`datetime_value`) is in the ISO 8601 text format.
          * 

          *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
-         * 
+         * string text = 1 [(.google.api.field_behavior) = OPTIONAL];
+         *
+         * @param value The text to set.
+         * @return This builder for chaining.
          */
-        public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
-            addDetectedLanguagesBuilder() {
-          return getDetectedLanguagesFieldBuilder()
-              .addBuilder(
-                  com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage
-                      .getDefaultInstance());
+        public Builder setText(java.lang.String value) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          text_ = value;
+          bitField0_ |= 0x00000080;
+          onChanged();
+          return this;
         }
         /**
          *
          *
          * 
-         * A list of detected languages together with confidence.
+         * Optional. An optional field to store a normalized string.
+         * For some entity types, one of respective `structured_value` fields may
+         * also be populated. Also not all the types of `structured_value` will be
+         * normalized. For example, some processors may not generate `float`
+         * or `integer` normalized text by default.
+         *
+         * Below are sample formats mapped to structured values.
+         *
+         * - Money/Currency type (`money_value`) is in the ISO 4217 text format.
+         * - Date type (`date_value`) is in the ISO 8601 text format.
+         * - Datetime type (`datetime_value`) is in the ISO 8601 text format.
          * 

          *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
-         * 
+         * string text = 1 [(.google.api.field_behavior) = OPTIONAL];
+         *
+         * @return This builder for chaining.
          */
-        public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
-            addDetectedLanguagesBuilder(int index) {
-          return getDetectedLanguagesFieldBuilder()
-              .addBuilder(
-                  index,
-                  com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage
-                      .getDefaultInstance());
+        public Builder clearText() {
+          text_ = getDefaultInstance().getText();
+          bitField0_ = (bitField0_ & ~0x00000080);
+          onChanged();
+          return this;
         }
         /**
          *
          *
          * 
-         * A list of detected languages together with confidence.
-         * 

+         * Optional. An optional field to store a normalized string.
+         * For some entity types, one of respective `structured_value` fields may
+         * also be populated. Also not all the types of `structured_value` will be
+         * normalized. For example, some processors may not generate `float`
+         * or `integer` normalized text by default.
          *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
-         * 
-         */
-        public java.util.List<
-                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder>
-            getDetectedLanguagesBuilderList() {
-          return getDetectedLanguagesFieldBuilder().getBuilderList();
-        }
-
-        private com.google.protobuf.RepeatedFieldBuilderV3<
-                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage,
-                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder,
-                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>
-            getDetectedLanguagesFieldBuilder() {
-          if (detectedLanguagesBuilder_ == null) {
-            detectedLanguagesBuilder_ =
-                new com.google.protobuf.RepeatedFieldBuilderV3<
-                    com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage,
-                    com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder,
-                    com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>(
-                    detectedLanguages_,
-                    ((bitField0_ & 0x00000008) != 0),
-                    getParentForChildren(),
-                    isClean());
-            detectedLanguages_ = null;
-          }
-          return detectedLanguagesBuilder_;
-        }
-
-        @java.lang.Override
-        public final Builder setUnknownFields(
-            final com.google.protobuf.UnknownFieldSet unknownFields) {
-          return super.setUnknownFields(unknownFields);
-        }
-
-        @java.lang.Override
-        public final Builder mergeUnknownFields(
-            final com.google.protobuf.UnknownFieldSet unknownFields) {
-          return super.mergeUnknownFields(unknownFields);
-        }
-
-        // @@protoc_insertion_point(builder_scope:google.cloud.documentai.v1beta2.Document.Page.Table)
-      }
-
-      // @@protoc_insertion_point(class_scope:google.cloud.documentai.v1beta2.Document.Page.Table)
-      private static final com.google.cloud.documentai.v1beta2.Document.Page.Table DEFAULT_INSTANCE;
-
-      static {
-        DEFAULT_INSTANCE = new com.google.cloud.documentai.v1beta2.Document.Page.Table();
-      }
-
-      public static com.google.cloud.documentai.v1beta2.Document.Page.Table getDefaultInstance() {
-        return DEFAULT_INSTANCE;
-      }
-
-      private static final com.google.protobuf.Parser
 PARSER =
-          new com.google.protobuf.AbstractParser
() {
-            @java.lang.Override
-            public Table parsePartialFrom(
-                com.google.protobuf.CodedInputStream input,
-                com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-                throws com.google.protobuf.InvalidProtocolBufferException {
-              Builder builder = newBuilder();
-              try {
-                builder.mergeFrom(input, extensionRegistry);
-              } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-                throw e.setUnfinishedMessage(builder.buildPartial());
-              } catch (com.google.protobuf.UninitializedMessageException e) {
-                throw e.asInvalidProtocolBufferException()
-                    .setUnfinishedMessage(builder.buildPartial());
-              } catch (java.io.IOException e) {
-                throw new com.google.protobuf.InvalidProtocolBufferException(e)
-                    .setUnfinishedMessage(builder.buildPartial());
-              }
-              return builder.buildPartial();
-            }
-          };
-
-      public static com.google.protobuf.Parser
 parser() {
-        return PARSER;
-      }
-
-      @java.lang.Override
-      public com.google.protobuf.Parser
 getParserForType() {
-        return PARSER;
-      }
-
-      @java.lang.Override
-      public com.google.cloud.documentai.v1beta2.Document.Page.Table getDefaultInstanceForType() {
-        return DEFAULT_INSTANCE;
-      }
-    }
-
-    public interface FormFieldOrBuilder
-        extends
-        // @@protoc_insertion_point(interface_extends:google.cloud.documentai.v1beta2.Document.Page.FormField)
-        com.google.protobuf.MessageOrBuilder {
-
-      /**
-       *
-       *
-       * 
-       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for the [FormField][google.cloud.documentai.v1beta2.Document.Page.FormField] name. e.g. `Address`, `Email`,
-       * `Grand total`, `Phone number`, etc.
-       * 

-       *
-       * .google.cloud.documentai.v1beta2.Document.Page.Layout field_name = 1;
-       *
-       * @return Whether the fieldName field is set.
-       */
-      boolean hasFieldName();
-      /**
-       *
-       *
-       * 
-       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for the [FormField][google.cloud.documentai.v1beta2.Document.Page.FormField] name. e.g. `Address`, `Email`,
-       * `Grand total`, `Phone number`, etc.
-       * 

-       *
-       * .google.cloud.documentai.v1beta2.Document.Page.Layout field_name = 1;
-       *
-       * @return The fieldName.
-       */
-      com.google.cloud.documentai.v1beta2.Document.Page.Layout getFieldName();
-      /**
-       *
-       *
-       * 
-       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for the [FormField][google.cloud.documentai.v1beta2.Document.Page.FormField] name. e.g. `Address`, `Email`,
-       * `Grand total`, `Phone number`, etc.
-       * 

-       *
-       * .google.cloud.documentai.v1beta2.Document.Page.Layout field_name = 1;
-       */
-      com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder getFieldNameOrBuilder();
-
-      /**
-       *
-       *
-       * 
-       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for the [FormField][google.cloud.documentai.v1beta2.Document.Page.FormField] value.
-       * 

-       *
-       * .google.cloud.documentai.v1beta2.Document.Page.Layout field_value = 2;
-       *
-       * @return Whether the fieldValue field is set.
-       */
-      boolean hasFieldValue();
-      /**
-       *
-       *
-       * 
-       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for the [FormField][google.cloud.documentai.v1beta2.Document.Page.FormField] value.
-       * 

-       *
-       * .google.cloud.documentai.v1beta2.Document.Page.Layout field_value = 2;
-       *
-       * @return The fieldValue.
-       */
-      com.google.cloud.documentai.v1beta2.Document.Page.Layout getFieldValue();
-      /**
-       *
-       *
-       * 
-       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for the [FormField][google.cloud.documentai.v1beta2.Document.Page.FormField] value.
-       * 

-       *
-       * .google.cloud.documentai.v1beta2.Document.Page.Layout field_value = 2;
-       */
-      com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder getFieldValueOrBuilder();
-
-      /**
-       *
-       *
-       * 
-       * A list of detected languages for name together with confidence.
-       * 

-       *
-       * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage name_detected_languages = 3;
-       * 
-       */
-      java.util.List
-          getNameDetectedLanguagesList();
-      /**
-       *
-       *
-       * 
-       * A list of detected languages for name together with confidence.
-       * 

-       *
-       * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage name_detected_languages = 3;
-       * 
-       */
-      com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage getNameDetectedLanguages(
-          int index);
-      /**
-       *
-       *
-       * 
-       * A list of detected languages for name together with confidence.
-       * 

-       *
-       * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage name_detected_languages = 3;
-       * 
-       */
-      int getNameDetectedLanguagesCount();
-      /**
-       *
-       *
-       * 
-       * A list of detected languages for name together with confidence.
-       * 

-       *
-       * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage name_detected_languages = 3;
-       * 
-       */
-      java.util.List<
-              ? extends com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>
-          getNameDetectedLanguagesOrBuilderList();
-      /**
-       *
-       *
-       * 
-       * A list of detected languages for name together with confidence.
-       * 

-       *
-       * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage name_detected_languages = 3;
-       * 
-       */
-      com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder
-          getNameDetectedLanguagesOrBuilder(int index);
-
-      /**
-       *
-       *
-       * 
-       * A list of detected languages for value together with confidence.
-       * 

-       *
-       * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value_detected_languages = 4;
-       * 
-       */
-      java.util.List
-          getValueDetectedLanguagesList();
-      /**
-       *
-       *
-       * 
-       * A list of detected languages for value together with confidence.
-       * 

-       *
-       * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value_detected_languages = 4;
-       * 
-       */
-      com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage getValueDetectedLanguages(
-          int index);
-      /**
-       *
-       *
-       * 
-       * A list of detected languages for value together with confidence.
-       * 

-       *
-       * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value_detected_languages = 4;
-       * 
-       */
-      int getValueDetectedLanguagesCount();
-      /**
-       *
-       *
-       * 
-       * A list of detected languages for value together with confidence.
-       * 

-       *
-       * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value_detected_languages = 4;
-       * 
-       */
-      java.util.List<
-              ? extends com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>
-          getValueDetectedLanguagesOrBuilderList();
-      /**
-       *
-       *
-       * 
-       * A list of detected languages for value together with confidence.
-       * 

-       *
-       * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value_detected_languages = 4;
-       * 
-       */
-      com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder
-          getValueDetectedLanguagesOrBuilder(int index);
-
-      /**
-       *
-       *
-       * 
-       * If the value is non-textual, this field represents the type. Current
-       * valid values are:
-       * - blank (this indicates the field_value is normal text)
-       * - "unfilled_checkbox"
-       * - "filled_checkbox"
-       * 

-       *
-       * string value_type = 5;
-       *
-       * @return The valueType.
-       */
-      java.lang.String getValueType();
-      /**
-       *
-       *
-       * 
-       * If the value is non-textual, this field represents the type. Current
-       * valid values are:
-       * - blank (this indicates the field_value is normal text)
-       * - "unfilled_checkbox"
-       * - "filled_checkbox"
-       * 

-       *
-       * string value_type = 5;
-       *
-       * @return The bytes for valueType.
-       */
-      com.google.protobuf.ByteString getValueTypeBytes();
+         * Below are sample formats mapped to structured values.
+         *
+         * - Money/Currency type (`money_value`) is in the ISO 4217 text format.
+         * - Date type (`date_value`) is in the ISO 8601 text format.
+         * - Datetime type (`datetime_value`) is in the ISO 8601 text format.
+         * 
+         *
+         * string text = 1 [(.google.api.field_behavior) = OPTIONAL];
+         *
+         * @param value The bytes for text to set.
+         * @return This builder for chaining.
+         */
+        public Builder setTextBytes(com.google.protobuf.ByteString value) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          checkByteStringIsUtf8(value);
+          text_ = value;
+          bitField0_ |= 0x00000080;
+          onChanged();
+          return this;
+        }
 
-      /**
-       *
-       *
-       * 
-       * An internal field, created for Labeling UI to export key text.
-       * 

-       *
-       * string corrected_key_text = 6;
-       *
-       * @return The correctedKeyText.
-       */
-      java.lang.String getCorrectedKeyText();
-      /**
-       *
-       *
-       * 
-       * An internal field, created for Labeling UI to export key text.
-       * 

-       *
-       * string corrected_key_text = 6;
-       *
-       * @return The bytes for correctedKeyText.
-       */
-      com.google.protobuf.ByteString getCorrectedKeyTextBytes();
+        @java.lang.Override
+        public final Builder setUnknownFields(
+            final com.google.protobuf.UnknownFieldSet unknownFields) {
+          return super.setUnknownFields(unknownFields);
+        }
 
-      /**
-       *
-       *
-       * 
-       * An internal field, created for Labeling UI to export value text.
-       * 

-       *
-       * string corrected_value_text = 7;
-       *
-       * @return The correctedValueText.
-       */
-      java.lang.String getCorrectedValueText();
-      /**
-       *
-       *
-       * 
-       * An internal field, created for Labeling UI to export value text.
-       * 

-       *
-       * string corrected_value_text = 7;
-       *
-       * @return The bytes for correctedValueText.
-       */
-      com.google.protobuf.ByteString getCorrectedValueTextBytes();
-    }
-    /**
-     *
-     *
-     * 
-     * A form field detected on the page.
-     * 

-     *
-     * Protobuf type {@code google.cloud.documentai.v1beta2.Document.Page.FormField}
-     */
-    public static final class FormField extends com.google.protobuf.GeneratedMessageV3
-        implements
-        // @@protoc_insertion_point(message_implements:google.cloud.documentai.v1beta2.Document.Page.FormField)
-        FormFieldOrBuilder {
-      private static final long serialVersionUID = 0L;
-      // Use FormField.newBuilder() to construct.
-      private FormField(com.google.protobuf.GeneratedMessageV3.Builder builder) {
-        super(builder);
-      }
+        @java.lang.Override
+        public final Builder mergeUnknownFields(
+            final com.google.protobuf.UnknownFieldSet unknownFields) {
+          return super.mergeUnknownFields(unknownFields);
+        }
 
-      private FormField() {
-        nameDetectedLanguages_ = java.util.Collections.emptyList();
-        valueDetectedLanguages_ = java.util.Collections.emptyList();
-        valueType_ = "";
-        correctedKeyText_ = "";
-        correctedValueText_ = "";
+        // @@protoc_insertion_point(builder_scope:google.cloud.documentai.v1beta2.Document.Entity.NormalizedValue)
       }
 
-      @java.lang.Override
-      @SuppressWarnings({"unused"})
-      protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
-        return new FormField();
-      }
+      // @@protoc_insertion_point(class_scope:google.cloud.documentai.v1beta2.Document.Entity.NormalizedValue)
+      private static final com.google.cloud.documentai.v1beta2.Document.Entity.NormalizedValue
+          DEFAULT_INSTANCE;
 
-      public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
-        return com.google.cloud.documentai.v1beta2.DocumentProto
-            .internal_static_google_cloud_documentai_v1beta2_Document_Page_FormField_descriptor;
+      static {
+        DEFAULT_INSTANCE =
+            new com.google.cloud.documentai.v1beta2.Document.Entity.NormalizedValue();
       }
 
-      @java.lang.Override
-      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
-          internalGetFieldAccessorTable() {
-        return com.google.cloud.documentai.v1beta2.DocumentProto
-            .internal_static_google_cloud_documentai_v1beta2_Document_Page_FormField_fieldAccessorTable
-            .ensureFieldAccessorsInitialized(
-                com.google.cloud.documentai.v1beta2.Document.Page.FormField.class,
-                com.google.cloud.documentai.v1beta2.Document.Page.FormField.Builder.class);
+      public static com.google.cloud.documentai.v1beta2.Document.Entity.NormalizedValue
+          getDefaultInstance() {
+        return DEFAULT_INSTANCE;
       }
 
-      public static final int FIELD_NAME_FIELD_NUMBER = 1;
-      private com.google.cloud.documentai.v1beta2.Document.Page.Layout fieldName_;
-      /**
-       *
-       *
-       * 
-       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for the [FormField][google.cloud.documentai.v1beta2.Document.Page.FormField] name. e.g. `Address`, `Email`,
-       * `Grand total`, `Phone number`, etc.
-       * 

-       *
-       * .google.cloud.documentai.v1beta2.Document.Page.Layout field_name = 1;
-       *
-       * @return Whether the fieldName field is set.
-       */
-      @java.lang.Override
-      public boolean hasFieldName() {
-        return fieldName_ != null;
-      }
-      /**
-       *
-       *
-       * 
-       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for the [FormField][google.cloud.documentai.v1beta2.Document.Page.FormField] name. e.g. `Address`, `Email`,
-       * `Grand total`, `Phone number`, etc.
-       * 

-       *
-       * .google.cloud.documentai.v1beta2.Document.Page.Layout field_name = 1;
-       *
-       * @return The fieldName.
-       */
-      @java.lang.Override
-      public com.google.cloud.documentai.v1beta2.Document.Page.Layout getFieldName() {
-        return fieldName_ == null
-            ? com.google.cloud.documentai.v1beta2.Document.Page.Layout.getDefaultInstance()
-            : fieldName_;
-      }
-      /**
-       *
-       *
-       * 
-       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for the [FormField][google.cloud.documentai.v1beta2.Document.Page.FormField] name. e.g. `Address`, `Email`,
-       * `Grand total`, `Phone number`, etc.
-       * 

-       *
-       * .google.cloud.documentai.v1beta2.Document.Page.Layout field_name = 1;
-       */
-      @java.lang.Override
-      public com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder
-          getFieldNameOrBuilder() {
-        return fieldName_ == null
-            ? com.google.cloud.documentai.v1beta2.Document.Page.Layout.getDefaultInstance()
-            : fieldName_;
-      }
+      private static final com.google.protobuf.Parser PARSER =
+          new com.google.protobuf.AbstractParser() {
+            @java.lang.Override
+            public NormalizedValue parsePartialFrom(
+                com.google.protobuf.CodedInputStream input,
+                com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+                throws com.google.protobuf.InvalidProtocolBufferException {
+              Builder builder = newBuilder();
+              try {
+                builder.mergeFrom(input, extensionRegistry);
+              } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+                throw e.setUnfinishedMessage(builder.buildPartial());
+              } catch (com.google.protobuf.UninitializedMessageException e) {
+                throw e.asInvalidProtocolBufferException()
+                    .setUnfinishedMessage(builder.buildPartial());
+              } catch (java.io.IOException e) {
+                throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                    .setUnfinishedMessage(builder.buildPartial());
+              }
+              return builder.buildPartial();
+            }
+          };
 
-      public static final int FIELD_VALUE_FIELD_NUMBER = 2;
-      private com.google.cloud.documentai.v1beta2.Document.Page.Layout fieldValue_;
-      /**
-       *
-       *
-       * 
-       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for the [FormField][google.cloud.documentai.v1beta2.Document.Page.FormField] value.
-       * 

-       *
-       * .google.cloud.documentai.v1beta2.Document.Page.Layout field_value = 2;
-       *
-       * @return Whether the fieldValue field is set.
-       */
-      @java.lang.Override
-      public boolean hasFieldValue() {
-        return fieldValue_ != null;
+      public static com.google.protobuf.Parser parser() {
+        return PARSER;
       }
-      /**
-       *
-       *
-       * 
-       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for the [FormField][google.cloud.documentai.v1beta2.Document.Page.FormField] value.
-       * 

-       *
-       * .google.cloud.documentai.v1beta2.Document.Page.Layout field_value = 2;
-       *
-       * @return The fieldValue.
-       */
+
       @java.lang.Override
-      public com.google.cloud.documentai.v1beta2.Document.Page.Layout getFieldValue() {
-        return fieldValue_ == null
-            ? com.google.cloud.documentai.v1beta2.Document.Page.Layout.getDefaultInstance()
-            : fieldValue_;
+      public com.google.protobuf.Parser getParserForType() {
+        return PARSER;
       }
-      /**
-       *
-       *
-       * 
-       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for the [FormField][google.cloud.documentai.v1beta2.Document.Page.FormField] value.
-       * 

-       *
-       * .google.cloud.documentai.v1beta2.Document.Page.Layout field_value = 2;
-       */
+
       @java.lang.Override
-      public com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder
-          getFieldValueOrBuilder() {
-        return fieldValue_ == null
-            ? com.google.cloud.documentai.v1beta2.Document.Page.Layout.getDefaultInstance()
-            : fieldValue_;
+      public com.google.cloud.documentai.v1beta2.Document.Entity.NormalizedValue
+          getDefaultInstanceForType() {
+        return DEFAULT_INSTANCE;
       }
+    }
 
-      public static final int NAME_DETECTED_LANGUAGES_FIELD_NUMBER = 3;
+    public static final int TEXT_ANCHOR_FIELD_NUMBER = 1;
+    private com.google.cloud.documentai.v1beta2.Document.TextAnchor textAnchor_;
+    /**
+     *
+     *
+     * 
+     * Optional. Provenance of the entity.
+     * Text anchor indexing into the
+     * [Document.text][google.cloud.documentai.v1beta2.Document.text].
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1beta2.Document.TextAnchor text_anchor = 1 [(.google.api.field_behavior) = OPTIONAL];
+     * 
+     *
+     * @return Whether the textAnchor field is set.
+     */
+    @java.lang.Override
+    public boolean hasTextAnchor() {
+      return textAnchor_ != null;
+    }
+    /**
+     *
+     *
+     * 
+     * Optional. Provenance of the entity.
+     * Text anchor indexing into the
+     * [Document.text][google.cloud.documentai.v1beta2.Document.text].
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1beta2.Document.TextAnchor text_anchor = 1 [(.google.api.field_behavior) = OPTIONAL];
+     * 
+     *
+     * @return The textAnchor.
+     */
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta2.Document.TextAnchor getTextAnchor() {
+      return textAnchor_ == null
+          ? com.google.cloud.documentai.v1beta2.Document.TextAnchor.getDefaultInstance()
+          : textAnchor_;
+    }
+    /**
+     *
+     *
+     * 
+     * Optional. Provenance of the entity.
+     * Text anchor indexing into the
+     * [Document.text][google.cloud.documentai.v1beta2.Document.text].
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1beta2.Document.TextAnchor text_anchor = 1 [(.google.api.field_behavior) = OPTIONAL];
+     * 
+     */
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta2.Document.TextAnchorOrBuilder
+        getTextAnchorOrBuilder() {
+      return textAnchor_ == null
+          ? com.google.cloud.documentai.v1beta2.Document.TextAnchor.getDefaultInstance()
+          : textAnchor_;
+    }
 
-      @SuppressWarnings("serial")
-      private java.util.List
-          nameDetectedLanguages_;
-      /**
-       *
-       *
-       * 
-       * A list of detected languages for name together with confidence.
-       * 

-       *
-       * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage name_detected_languages = 3;
-       * 
-       */
-      @java.lang.Override
-      public java.util.List
-          getNameDetectedLanguagesList() {
-        return nameDetectedLanguages_;
-      }
-      /**
-       *
-       *
-       * 
-       * A list of detected languages for name together with confidence.
-       * 

-       *
-       * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage name_detected_languages = 3;
-       * 
-       */
-      @java.lang.Override
-      public java.util.List<
-              ? extends com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>
-          getNameDetectedLanguagesOrBuilderList() {
-        return nameDetectedLanguages_;
-      }
-      /**
-       *
-       *
-       * 
-       * A list of detected languages for name together with confidence.
-       * 

-       *
-       * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage name_detected_languages = 3;
-       * 
-       */
-      @java.lang.Override
-      public int getNameDetectedLanguagesCount() {
-        return nameDetectedLanguages_.size();
-      }
-      /**
-       *
-       *
-       * 
-       * A list of detected languages for name together with confidence.
-       * 

-       *
-       * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage name_detected_languages = 3;
-       * 
-       */
-      @java.lang.Override
-      public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage
-          getNameDetectedLanguages(int index) {
-        return nameDetectedLanguages_.get(index);
+    public static final int TYPE_FIELD_NUMBER = 2;
+
+    @SuppressWarnings("serial")
+    private volatile java.lang.Object type_ = "";
+    /**
+     *
+     *
+     * 
+     * Required. Entity type from a schema e.g. `Address`.
+     * 

+     *
+     * string type = 2 [(.google.api.field_behavior) = REQUIRED];
+     *
+     * @return The type.
+     */
+    @java.lang.Override
+    public java.lang.String getType() {
+      java.lang.Object ref = type_;
+      if (ref instanceof java.lang.String) {
+        return (java.lang.String) ref;
+      } else {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        type_ = s;
+        return s;
       }
-      /**
-       *
-       *
-       * 
-       * A list of detected languages for name together with confidence.
-       * 

-       *
-       * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage name_detected_languages = 3;
-       * 
-       */
-      @java.lang.Override
-      public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder
-          getNameDetectedLanguagesOrBuilder(int index) {
-        return nameDetectedLanguages_.get(index);
+    }
+    /**
+     *
+     *
+     * 
+     * Required. Entity type from a schema e.g. `Address`.
+     * 

+     *
+     * string type = 2 [(.google.api.field_behavior) = REQUIRED];
+     *
+     * @return The bytes for type.
+     */
+    @java.lang.Override
+    public com.google.protobuf.ByteString getTypeBytes() {
+      java.lang.Object ref = type_;
+      if (ref instanceof java.lang.String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        type_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
       }
+    }
 
-      public static final int VALUE_DETECTED_LANGUAGES_FIELD_NUMBER = 4;
+    public static final int MENTION_TEXT_FIELD_NUMBER = 3;
 
-      @SuppressWarnings("serial")
-      private java.util.List
-          valueDetectedLanguages_;
-      /**
-       *
-       *
-       * 
-       * A list of detected languages for value together with confidence.
-       * 

-       *
-       * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value_detected_languages = 4;
-       * 
-       */
-      @java.lang.Override
-      public java.util.List
-          getValueDetectedLanguagesList() {
-        return valueDetectedLanguages_;
-      }
-      /**
-       *
-       *
-       * 
-       * A list of detected languages for value together with confidence.
-       * 

-       *
-       * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value_detected_languages = 4;
-       * 
-       */
-      @java.lang.Override
-      public java.util.List<
-              ? extends com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>
-          getValueDetectedLanguagesOrBuilderList() {
-        return valueDetectedLanguages_;
-      }
-      /**
-       *
-       *
-       * 
-       * A list of detected languages for value together with confidence.
-       * 

-       *
-       * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value_detected_languages = 4;
-       * 
-       */
-      @java.lang.Override
-      public int getValueDetectedLanguagesCount() {
-        return valueDetectedLanguages_.size();
-      }
-      /**
-       *
-       *
-       * 
-       * A list of detected languages for value together with confidence.
-       * 

-       *
-       * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value_detected_languages = 4;
-       * 
-       */
-      @java.lang.Override
-      public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage
-          getValueDetectedLanguages(int index) {
-        return valueDetectedLanguages_.get(index);
-      }
-      /**
-       *
-       *
-       * 
-       * A list of detected languages for value together with confidence.
-       * 

-       *
-       * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value_detected_languages = 4;
-       * 
-       */
-      @java.lang.Override
-      public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder
-          getValueDetectedLanguagesOrBuilder(int index) {
-        return valueDetectedLanguages_.get(index);
+    @SuppressWarnings("serial")
+    private volatile java.lang.Object mentionText_ = "";
+    /**
+     *
+     *
+     * 
+     * Optional. Text value of the entity e.g. `1600 Amphitheatre Pkwy`.
+     * 

+     *
+     * string mention_text = 3 [(.google.api.field_behavior) = OPTIONAL];
+     *
+     * @return The mentionText.
+     */
+    @java.lang.Override
+    public java.lang.String getMentionText() {
+      java.lang.Object ref = mentionText_;
+      if (ref instanceof java.lang.String) {
+        return (java.lang.String) ref;
+      } else {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        mentionText_ = s;
+        return s;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Optional. Text value of the entity e.g. `1600 Amphitheatre Pkwy`.
+     * 

+     *
+     * string mention_text = 3 [(.google.api.field_behavior) = OPTIONAL];
+     *
+     * @return The bytes for mentionText.
+     */
+    @java.lang.Override
+    public com.google.protobuf.ByteString getMentionTextBytes() {
+      java.lang.Object ref = mentionText_;
+      if (ref instanceof java.lang.String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        mentionText_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
       }
+    }
 
-      public static final int VALUE_TYPE_FIELD_NUMBER = 5;
+    public static final int MENTION_ID_FIELD_NUMBER = 4;
 
-      @SuppressWarnings("serial")
-      private volatile java.lang.Object valueType_ = "";
-      /**
-       *
-       *
-       * 
-       * If the value is non-textual, this field represents the type. Current
-       * valid values are:
-       * - blank (this indicates the field_value is normal text)
-       * - "unfilled_checkbox"
-       * - "filled_checkbox"
-       * 

-       *
-       * string value_type = 5;
-       *
-       * @return The valueType.
-       */
-      @java.lang.Override
-      public java.lang.String getValueType() {
-        java.lang.Object ref = valueType_;
-        if (ref instanceof java.lang.String) {
-          return (java.lang.String) ref;
-        } else {
-          com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
-          java.lang.String s = bs.toStringUtf8();
-          valueType_ = s;
-          return s;
-        }
+    @SuppressWarnings("serial")
+    private volatile java.lang.Object mentionId_ = "";
+    /**
+     *
+     *
+     * 
+     * Optional. Deprecated.  Use `id` field instead.
+     * 

+     *
+     * string mention_id = 4 [(.google.api.field_behavior) = OPTIONAL];
+     *
+     * @return The mentionId.
+     */
+    @java.lang.Override
+    public java.lang.String getMentionId() {
+      java.lang.Object ref = mentionId_;
+      if (ref instanceof java.lang.String) {
+        return (java.lang.String) ref;
+      } else {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        mentionId_ = s;
+        return s;
       }
-      /**
-       *
-       *
-       * 
-       * If the value is non-textual, this field represents the type. Current
-       * valid values are:
-       * - blank (this indicates the field_value is normal text)
-       * - "unfilled_checkbox"
-       * - "filled_checkbox"
-       * 

-       *
-       * string value_type = 5;
-       *
-       * @return The bytes for valueType.
-       */
-      @java.lang.Override
-      public com.google.protobuf.ByteString getValueTypeBytes() {
-        java.lang.Object ref = valueType_;
-        if (ref instanceof java.lang.String) {
-          com.google.protobuf.ByteString b =
-              com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
-          valueType_ = b;
-          return b;
-        } else {
-          return (com.google.protobuf.ByteString) ref;
-        }
+    }
+    /**
+     *
+     *
+     * 
+     * Optional. Deprecated.  Use `id` field instead.
+     * 

+     *
+     * string mention_id = 4 [(.google.api.field_behavior) = OPTIONAL];
+     *
+     * @return The bytes for mentionId.
+     */
+    @java.lang.Override
+    public com.google.protobuf.ByteString getMentionIdBytes() {
+      java.lang.Object ref = mentionId_;
+      if (ref instanceof java.lang.String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        mentionId_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
       }
+    }
 
-      public static final int CORRECTED_KEY_TEXT_FIELD_NUMBER = 6;
+    public static final int CONFIDENCE_FIELD_NUMBER = 5;
+    private float confidence_ = 0F;
+    /**
+     *
+     *
+     * 
+     * Optional. Confidence of detected Schema entity. Range `[0, 1]`.
+     * 

+     *
+     * float confidence = 5 [(.google.api.field_behavior) = OPTIONAL];
+     *
+     * @return The confidence.
+     */
+    @java.lang.Override
+    public float getConfidence() {
+      return confidence_;
+    }
 
-      @SuppressWarnings("serial")
-      private volatile java.lang.Object correctedKeyText_ = "";
-      /**
-       *
-       *
-       * 
-       * An internal field, created for Labeling UI to export key text.
-       * 

-       *
-       * string corrected_key_text = 6;
-       *
-       * @return The correctedKeyText.
-       */
-      @java.lang.Override
-      public java.lang.String getCorrectedKeyText() {
-        java.lang.Object ref = correctedKeyText_;
-        if (ref instanceof java.lang.String) {
-          return (java.lang.String) ref;
-        } else {
-          com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
-          java.lang.String s = bs.toStringUtf8();
-          correctedKeyText_ = s;
-          return s;
-        }
-      }
-      /**
-       *
-       *
-       * 
-       * An internal field, created for Labeling UI to export key text.
-       * 

-       *
-       * string corrected_key_text = 6;
-       *
-       * @return The bytes for correctedKeyText.
-       */
-      @java.lang.Override
-      public com.google.protobuf.ByteString getCorrectedKeyTextBytes() {
-        java.lang.Object ref = correctedKeyText_;
-        if (ref instanceof java.lang.String) {
-          com.google.protobuf.ByteString b =
-              com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
-          correctedKeyText_ = b;
-          return b;
-        } else {
-          return (com.google.protobuf.ByteString) ref;
-        }
-      }
+    public static final int PAGE_ANCHOR_FIELD_NUMBER = 6;
+    private com.google.cloud.documentai.v1beta2.Document.PageAnchor pageAnchor_;
+    /**
+     *
+     *
+     * 
+     * Optional. Represents the provenance of this entity wrt. the location on
+     * the page where it was found.
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1beta2.Document.PageAnchor page_anchor = 6 [(.google.api.field_behavior) = OPTIONAL];
+     * 
+     *
+     * @return Whether the pageAnchor field is set.
+     */
+    @java.lang.Override
+    public boolean hasPageAnchor() {
+      return pageAnchor_ != null;
+    }
+    /**
+     *
+     *
+     * 
+     * Optional. Represents the provenance of this entity wrt. the location on
+     * the page where it was found.
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1beta2.Document.PageAnchor page_anchor = 6 [(.google.api.field_behavior) = OPTIONAL];
+     * 
+     *
+     * @return The pageAnchor.
+     */
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta2.Document.PageAnchor getPageAnchor() {
+      return pageAnchor_ == null
+          ? com.google.cloud.documentai.v1beta2.Document.PageAnchor.getDefaultInstance()
+          : pageAnchor_;
+    }
+    /**
+     *
+     *
+     * 
+     * Optional. Represents the provenance of this entity wrt. the location on
+     * the page where it was found.
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1beta2.Document.PageAnchor page_anchor = 6 [(.google.api.field_behavior) = OPTIONAL];
+     * 
+     */
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta2.Document.PageAnchorOrBuilder
+        getPageAnchorOrBuilder() {
+      return pageAnchor_ == null
+          ? com.google.cloud.documentai.v1beta2.Document.PageAnchor.getDefaultInstance()
+          : pageAnchor_;
+    }
 
-      public static final int CORRECTED_VALUE_TEXT_FIELD_NUMBER = 7;
+    public static final int ID_FIELD_NUMBER = 7;
 
-      @SuppressWarnings("serial")
-      private volatile java.lang.Object correctedValueText_ = "";
-      /**
-       *
-       *
-       * 
-       * An internal field, created for Labeling UI to export value text.
-       * 

-       *
-       * string corrected_value_text = 7;
-       *
-       * @return The correctedValueText.
-       */
-      @java.lang.Override
-      public java.lang.String getCorrectedValueText() {
-        java.lang.Object ref = correctedValueText_;
-        if (ref instanceof java.lang.String) {
-          return (java.lang.String) ref;
-        } else {
-          com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
-          java.lang.String s = bs.toStringUtf8();
-          correctedValueText_ = s;
-          return s;
-        }
+    @SuppressWarnings("serial")
+    private volatile java.lang.Object id_ = "";
+    /**
+     *
+     *
+     * 
+     * Optional. Canonical id. This will be a unique value in the entity list
+     * for this document.
+     * 

+     *
+     * string id = 7 [(.google.api.field_behavior) = OPTIONAL];
+     *
+     * @return The id.
+     */
+    @java.lang.Override
+    public java.lang.String getId() {
+      java.lang.Object ref = id_;
+      if (ref instanceof java.lang.String) {
+        return (java.lang.String) ref;
+      } else {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        id_ = s;
+        return s;
       }
-      /**
-       *
-       *
-       * 
-       * An internal field, created for Labeling UI to export value text.
-       * 

-       *
-       * string corrected_value_text = 7;
-       *
-       * @return The bytes for correctedValueText.
-       */
-      @java.lang.Override
-      public com.google.protobuf.ByteString getCorrectedValueTextBytes() {
-        java.lang.Object ref = correctedValueText_;
-        if (ref instanceof java.lang.String) {
-          com.google.protobuf.ByteString b =
-              com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
-          correctedValueText_ = b;
-          return b;
-        } else {
-          return (com.google.protobuf.ByteString) ref;
-        }
+    }
+    /**
+     *
+     *
+     * 
+     * Optional. Canonical id. This will be a unique value in the entity list
+     * for this document.
+     * 

+     *
+     * string id = 7 [(.google.api.field_behavior) = OPTIONAL];
+     *
+     * @return The bytes for id.
+     */
+    @java.lang.Override
+    public com.google.protobuf.ByteString getIdBytes() {
+      java.lang.Object ref = id_;
+      if (ref instanceof java.lang.String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        id_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
       }
+    }
 
-      private byte memoizedIsInitialized = -1;
+    public static final int NORMALIZED_VALUE_FIELD_NUMBER = 9;
+    private com.google.cloud.documentai.v1beta2.Document.Entity.NormalizedValue normalizedValue_;
+    /**
+     *
+     *
+     * 
+     * Optional. Normalized entity value. Absent if the extracted value could
+     * not be converted or the type (e.g. address) is not supported for certain
+     * parsers. This field is also only populated for certain supported document
+     * types.
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1beta2.Document.Entity.NormalizedValue normalized_value = 9 [(.google.api.field_behavior) = OPTIONAL];
+     * 
+     *
+     * @return Whether the normalizedValue field is set.
+     */
+    @java.lang.Override
+    public boolean hasNormalizedValue() {
+      return normalizedValue_ != null;
+    }
+    /**
+     *
+     *
+     * 
+     * Optional. Normalized entity value. Absent if the extracted value could
+     * not be converted or the type (e.g. address) is not supported for certain
+     * parsers. This field is also only populated for certain supported document
+     * types.
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1beta2.Document.Entity.NormalizedValue normalized_value = 9 [(.google.api.field_behavior) = OPTIONAL];
+     * 
+     *
+     * @return The normalizedValue.
+     */
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta2.Document.Entity.NormalizedValue
+        getNormalizedValue() {
+      return normalizedValue_ == null
+          ? com.google.cloud.documentai.v1beta2.Document.Entity.NormalizedValue.getDefaultInstance()
+          : normalizedValue_;
+    }
+    /**
+     *
+     *
+     * 
+     * Optional. Normalized entity value. Absent if the extracted value could
+     * not be converted or the type (e.g. address) is not supported for certain
+     * parsers. This field is also only populated for certain supported document
+     * types.
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1beta2.Document.Entity.NormalizedValue normalized_value = 9 [(.google.api.field_behavior) = OPTIONAL];
+     * 
+     */
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta2.Document.Entity.NormalizedValueOrBuilder
+        getNormalizedValueOrBuilder() {
+      return normalizedValue_ == null
+          ? com.google.cloud.documentai.v1beta2.Document.Entity.NormalizedValue.getDefaultInstance()
+          : normalizedValue_;
+    }
 
-      @java.lang.Override
-      public final boolean isInitialized() {
-        byte isInitialized = memoizedIsInitialized;
-        if (isInitialized == 1) return true;
-        if (isInitialized == 0) return false;
+    public static final int PROPERTIES_FIELD_NUMBER = 10;
 
-        memoizedIsInitialized = 1;
-        return true;
-      }
+    @SuppressWarnings("serial")
+    private java.util.List properties_;
+    /**
+     *
+     *
+     * 
+     * Optional. Entities can be nested to form a hierarchical data structure
+     * representing the content in the document.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta2.Document.Entity properties = 10 [(.google.api.field_behavior) = OPTIONAL];
+     * 
+     */
+    @java.lang.Override
+    public java.util.List getPropertiesList() {
+      return properties_;
+    }
+    /**
+     *
+     *
+     * 
+     * Optional. Entities can be nested to form a hierarchical data structure
+     * representing the content in the document.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta2.Document.Entity properties = 10 [(.google.api.field_behavior) = OPTIONAL];
+     * 
+     */
+    @java.lang.Override
+    public java.util.List
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-            throw newUninitializedMessageException(result);
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-          return result;
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+    public static com.google.cloud.documentai.v1beta2.Document.Entity parseFrom(
+        com.google.protobuf.ByteString data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
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-        public com.google.cloud.documentai.v1beta2.Document.Page.FormField buildPartial() {
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-          buildPartialRepeatedFields(result);
-          if (bitField0_ != 0) {
-            buildPartial0(result);
-          }
-          onBuilt();
-          return result;
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+    public static com.google.cloud.documentai.v1beta2.Document.Entity parseFrom(
+        com.google.protobuf.ByteString data,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
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-          } else {
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-          }
-        }
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+    public static com.google.cloud.documentai.v1beta2.Document.Entity parseFrom(
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-        public Builder addRepeatedField(
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-          return super.addRepeatedField(field, value);
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+    public static com.google.cloud.documentai.v1beta2.Document.Entity parseFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
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+    @java.lang.Override
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-            bitField0_ |= 0x00000040;
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-          return this;
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+    public static Builder newBuilder() {
+      return DEFAULT_INSTANCE.toBuilder();
+    }
 
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+    public static Builder newBuilder(
+        com.google.cloud.documentai.v1beta2.Document.Entity prototype) {
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-        public Builder mergeFrom(
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-          return this;
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+    @java.lang.Override
+    public Builder toBuilder() {
+      return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+    }
 
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+    @java.lang.Override
+    protected Builder newBuilderForType(
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-         *
-         * .google.cloud.documentai.v1beta2.Document.Page.Layout field_name = 1;
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-        public com.google.cloud.documentai.v1beta2.Document.Page.Layout getFieldName() {
-          if (fieldNameBuilder_ == null) {
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-        public Builder setFieldValue(
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-          if (fieldValueBuilder_ == null) {
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-         * .google.cloud.documentai.v1beta2.Document.Page.Layout field_value = 2;
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-          if (fieldValueBuilder_ == null) {
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-          bitField0_ |= 0x00000002;
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-        /**
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-         * .google.cloud.documentai.v1beta2.Document.Page.Layout field_value = 2;
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-        public Builder mergeFieldValue(
-            com.google.cloud.documentai.v1beta2.Document.Page.Layout value) {
-          if (fieldValueBuilder_ == null) {
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-              getFieldValueBuilder().mergeFrom(value);
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-              fieldValue_ = value;
-            }
-          } else {
-            fieldValueBuilder_.mergeFrom(value);
-          }
-          bitField0_ |= 0x00000002;
-          onChanged();
-          return this;
+      // Construct using com.google.cloud.documentai.v1beta2.Document.Entity.newBuilder()
+      private Builder() {}
+
+      private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+        super(parent);
+      }
+
+      @java.lang.Override
+      public Builder clear() {
+        super.clear();
+        bitField0_ = 0;
+        textAnchor_ = null;
+        if (textAnchorBuilder_ != null) {
+          textAnchorBuilder_.dispose();
+          textAnchorBuilder_ = null;
         }
-        /**
-         *
-         *
-         * 
-         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for the [FormField][google.cloud.documentai.v1beta2.Document.Page.FormField] value.
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-        public Builder clearFieldValue() {
-          bitField0_ = (bitField0_ & ~0x00000002);
-          fieldValue_ = null;
-          if (fieldValueBuilder_ != null) {
-            fieldValueBuilder_.dispose();
-            fieldValueBuilder_ = null;
-          }
-          onChanged();
-          return this;
+        type_ = "";
+        mentionText_ = "";
+        mentionId_ = "";
+        confidence_ = 0F;
+        pageAnchor_ = null;
+        if (pageAnchorBuilder_ != null) {
+          pageAnchorBuilder_.dispose();
+          pageAnchorBuilder_ = null;
         }
-        /**
-         *
-         *
-         * 
-         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for the [FormField][google.cloud.documentai.v1beta2.Document.Page.FormField] value.
-         * 

-         *
-         * .google.cloud.documentai.v1beta2.Document.Page.Layout field_value = 2;
-         */
-        public com.google.cloud.documentai.v1beta2.Document.Page.Layout.Builder
-            getFieldValueBuilder() {
-          bitField0_ |= 0x00000002;
-          onChanged();
-          return getFieldValueFieldBuilder().getBuilder();
+        id_ = "";
+        normalizedValue_ = null;
+        if (normalizedValueBuilder_ != null) {
+          normalizedValueBuilder_.dispose();
+          normalizedValueBuilder_ = null;
         }
-        /**
-         *
-         *
-         * 
-         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for the [FormField][google.cloud.documentai.v1beta2.Document.Page.FormField] value.
-         * 

-         *
-         * .google.cloud.documentai.v1beta2.Document.Page.Layout field_value = 2;
-         */
-        public com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder
-            getFieldValueOrBuilder() {
-          if (fieldValueBuilder_ != null) {
-            return fieldValueBuilder_.getMessageOrBuilder();
-          } else {
-            return fieldValue_ == null
-                ? com.google.cloud.documentai.v1beta2.Document.Page.Layout.getDefaultInstance()
-                : fieldValue_;
-          }
+        if (propertiesBuilder_ == null) {
+          properties_ = java.util.Collections.emptyList();
+        } else {
+          properties_ = null;
+          propertiesBuilder_.clear();
         }
-        /**
-         *
-         *
-         * 
-         * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for the [FormField][google.cloud.documentai.v1beta2.Document.Page.FormField] value.
-         * 

-         *
-         * .google.cloud.documentai.v1beta2.Document.Page.Layout field_value = 2;
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-        private com.google.protobuf.SingleFieldBuilderV3<
-                com.google.cloud.documentai.v1beta2.Document.Page.Layout,
-                com.google.cloud.documentai.v1beta2.Document.Page.Layout.Builder,
-                com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder>
-            getFieldValueFieldBuilder() {
-          if (fieldValueBuilder_ == null) {
-            fieldValueBuilder_ =
-                new com.google.protobuf.SingleFieldBuilderV3<
-                    com.google.cloud.documentai.v1beta2.Document.Page.Layout,
-                    com.google.cloud.documentai.v1beta2.Document.Page.Layout.Builder,
-                    com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder>(
-                    getFieldValue(), getParentForChildren(), isClean());
-            fieldValue_ = null;
-          }
-          return fieldValueBuilder_;
+        bitField0_ = (bitField0_ & ~0x00000100);
+        provenance_ = null;
+        if (provenanceBuilder_ != null) {
+          provenanceBuilder_.dispose();
+          provenanceBuilder_ = null;
         }
+        redacted_ = false;
+        return this;
+      }
 
-        private java.util.List
-            nameDetectedLanguages_ = java.util.Collections.emptyList();
+      @java.lang.Override
+      public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+        return com.google.cloud.documentai.v1beta2.DocumentProto
+            .internal_static_google_cloud_documentai_v1beta2_Document_Entity_descriptor;
+      }
 
-        private void ensureNameDetectedLanguagesIsMutable() {
-          if (!((bitField0_ & 0x00000004) != 0)) {
-            nameDetectedLanguages_ =
-                new java.util.ArrayList<
-                    com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage>(
-                    nameDetectedLanguages_);
-            bitField0_ |= 0x00000004;
-          }
+      @java.lang.Override
+      public com.google.cloud.documentai.v1beta2.Document.Entity getDefaultInstanceForType() {
+        return com.google.cloud.documentai.v1beta2.Document.Entity.getDefaultInstance();
+      }
+
+      @java.lang.Override
+      public com.google.cloud.documentai.v1beta2.Document.Entity build() {
+        com.google.cloud.documentai.v1beta2.Document.Entity result = buildPartial();
+        if (!result.isInitialized()) {
+          throw newUninitializedMessageException(result);
         }
+        return result;
+      }
 
-        private com.google.protobuf.RepeatedFieldBuilderV3<
-                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage,
-                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder,
-                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>
-            nameDetectedLanguagesBuilder_;
+      @java.lang.Override
+      public com.google.cloud.documentai.v1beta2.Document.Entity buildPartial() {
+        com.google.cloud.documentai.v1beta2.Document.Entity result =
+            new com.google.cloud.documentai.v1beta2.Document.Entity(this);
+        buildPartialRepeatedFields(result);
+        if (bitField0_ != 0) {
+          buildPartial0(result);
+        }
+        onBuilt();
+        return result;
+      }
 
-        /**
-         *
-         *
-         * 
-         * A list of detected languages for name together with confidence.
-         * 

-         *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage name_detected_languages = 3;
-         * 
-         */
-        public java.util.List
-            getNameDetectedLanguagesList() {
-          if (nameDetectedLanguagesBuilder_ == null) {
-            return java.util.Collections.unmodifiableList(nameDetectedLanguages_);
-          } else {
-            return nameDetectedLanguagesBuilder_.getMessageList();
+      private void buildPartialRepeatedFields(
+          com.google.cloud.documentai.v1beta2.Document.Entity result) {
+        if (propertiesBuilder_ == null) {
+          if (((bitField0_ & 0x00000100) != 0)) {
+            properties_ = java.util.Collections.unmodifiableList(properties_);
+            bitField0_ = (bitField0_ & ~0x00000100);
           }
+          result.properties_ = properties_;
+        } else {
+          result.properties_ = propertiesBuilder_.build();
         }
-        /**
-         *
-         *
-         * 
-         * A list of detected languages for name together with confidence.
-         * 

-         *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage name_detected_languages = 3;
-         * 
-         */
-        public int getNameDetectedLanguagesCount() {
-          if (nameDetectedLanguagesBuilder_ == null) {
-            return nameDetectedLanguages_.size();
-          } else {
-            return nameDetectedLanguagesBuilder_.getCount();
-          }
+      }
+
+      private void buildPartial0(com.google.cloud.documentai.v1beta2.Document.Entity result) {
+        int from_bitField0_ = bitField0_;
+        if (((from_bitField0_ & 0x00000001) != 0)) {
+          result.textAnchor_ =
+              textAnchorBuilder_ == null ? textAnchor_ : textAnchorBuilder_.build();
         }
-        /**
-         *
-         *
-         * 
-         * A list of detected languages for name together with confidence.
-         * 

-         *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage name_detected_languages = 3;
-         * 
-         */
-        public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage
-            getNameDetectedLanguages(int index) {
-          if (nameDetectedLanguagesBuilder_ == null) {
-            return nameDetectedLanguages_.get(index);
-          } else {
-            return nameDetectedLanguagesBuilder_.getMessage(index);
-          }
+        if (((from_bitField0_ & 0x00000002) != 0)) {
+          result.type_ = type_;
         }
-        /**
-         *
-         *
-         * 
-         * A list of detected languages for name together with confidence.
-         * 

-         *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage name_detected_languages = 3;
-         * 
-         */
-        public Builder setNameDetectedLanguages(
-            int index, com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value) {
-          if (nameDetectedLanguagesBuilder_ == null) {
-            if (value == null) {
-              throw new NullPointerException();
-            }
-            ensureNameDetectedLanguagesIsMutable();
-            nameDetectedLanguages_.set(index, value);
-            onChanged();
-          } else {
-            nameDetectedLanguagesBuilder_.setMessage(index, value);
-          }
-          return this;
+        if (((from_bitField0_ & 0x00000004) != 0)) {
+          result.mentionText_ = mentionText_;
         }
-        /**
-         *
-         *
-         * 
-         * A list of detected languages for name together with confidence.
-         * 

-         *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage name_detected_languages = 3;
-         * 
-         */
-        public Builder setNameDetectedLanguages(
-            int index,
-            com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
-                builderForValue) {
-          if (nameDetectedLanguagesBuilder_ == null) {
-            ensureNameDetectedLanguagesIsMutable();
-            nameDetectedLanguages_.set(index, builderForValue.build());
-            onChanged();
-          } else {
-            nameDetectedLanguagesBuilder_.setMessage(index, builderForValue.build());
-          }
-          return this;
+        if (((from_bitField0_ & 0x00000008) != 0)) {
+          result.mentionId_ = mentionId_;
         }
-        /**
-         *
-         *
-         * 
-         * A list of detected languages for name together with confidence.
-         * 

-         *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage name_detected_languages = 3;
-         * 
-         */
-        public Builder addNameDetectedLanguages(
-            com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value) {
-          if (nameDetectedLanguagesBuilder_ == null) {
-            if (value == null) {
-              throw new NullPointerException();
-            }
-            ensureNameDetectedLanguagesIsMutable();
-            nameDetectedLanguages_.add(value);
-            onChanged();
-          } else {
-            nameDetectedLanguagesBuilder_.addMessage(value);
-          }
-          return this;
+        if (((from_bitField0_ & 0x00000010) != 0)) {
+          result.confidence_ = confidence_;
         }
-        /**
-         *
-         *
-         * 
-         * A list of detected languages for name together with confidence.
-         * 

-         *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage name_detected_languages = 3;
-         * 
-         */
-        public Builder addNameDetectedLanguages(
-            int index, com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value) {
-          if (nameDetectedLanguagesBuilder_ == null) {
-            if (value == null) {
-              throw new NullPointerException();
-            }
-            ensureNameDetectedLanguagesIsMutable();
-            nameDetectedLanguages_.add(index, value);
-            onChanged();
-          } else {
-            nameDetectedLanguagesBuilder_.addMessage(index, value);
-          }
-          return this;
+        if (((from_bitField0_ & 0x00000020) != 0)) {
+          result.pageAnchor_ =
+              pageAnchorBuilder_ == null ? pageAnchor_ : pageAnchorBuilder_.build();
         }
-        /**
-         *
-         *
-         * 
-         * A list of detected languages for name together with confidence.
-         * 

-         *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage name_detected_languages = 3;
-         * 
-         */
-        public Builder addNameDetectedLanguages(
-            com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
-                builderForValue) {
-          if (nameDetectedLanguagesBuilder_ == null) {
-            ensureNameDetectedLanguagesIsMutable();
-            nameDetectedLanguages_.add(builderForValue.build());
-            onChanged();
-          } else {
-            nameDetectedLanguagesBuilder_.addMessage(builderForValue.build());
-          }
-          return this;
+        if (((from_bitField0_ & 0x00000040) != 0)) {
+          result.id_ = id_;
         }
-        /**
-         *
-         *
-         * 
-         * A list of detected languages for name together with confidence.
-         * 

-         *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage name_detected_languages = 3;
-         * 
-         */
-        public Builder addNameDetectedLanguages(
-            int index,
-            com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
-                builderForValue) {
-          if (nameDetectedLanguagesBuilder_ == null) {
-            ensureNameDetectedLanguagesIsMutable();
-            nameDetectedLanguages_.add(index, builderForValue.build());
-            onChanged();
-          } else {
-            nameDetectedLanguagesBuilder_.addMessage(index, builderForValue.build());
-          }
-          return this;
+        if (((from_bitField0_ & 0x00000080) != 0)) {
+          result.normalizedValue_ =
+              normalizedValueBuilder_ == null ? normalizedValue_ : normalizedValueBuilder_.build();
         }
-        /**
-         *
-         *
-         * 
-         * A list of detected languages for name together with confidence.
-         * 

-         *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage name_detected_languages = 3;
-         * 
-         */
-        public Builder addAllNameDetectedLanguages(
-            java.lang.Iterable<
-                    ? extends com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage>
-                values) {
-          if (nameDetectedLanguagesBuilder_ == null) {
-            ensureNameDetectedLanguagesIsMutable();
-            com.google.protobuf.AbstractMessageLite.Builder.addAll(values, nameDetectedLanguages_);
-            onChanged();
-          } else {
-            nameDetectedLanguagesBuilder_.addAllMessages(values);
-          }
-          return this;
+        if (((from_bitField0_ & 0x00000200) != 0)) {
+          result.provenance_ =
+              provenanceBuilder_ == null ? provenance_ : provenanceBuilder_.build();
         }
-        /**
-         *
-         *
-         * 
-         * A list of detected languages for name together with confidence.
-         * 

-         *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage name_detected_languages = 3;
-         * 
-         */
-        public Builder clearNameDetectedLanguages() {
-          if (nameDetectedLanguagesBuilder_ == null) {
-            nameDetectedLanguages_ = java.util.Collections.emptyList();
-            bitField0_ = (bitField0_ & ~0x00000004);
-            onChanged();
-          } else {
-            nameDetectedLanguagesBuilder_.clear();
-          }
+        if (((from_bitField0_ & 0x00000400) != 0)) {
+          result.redacted_ = redacted_;
+        }
+      }
+
+      @java.lang.Override
+      public Builder clone() {
+        return super.clone();
+      }
+
+      @java.lang.Override
+      public Builder setField(
+          com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+        return super.setField(field, value);
+      }
+
+      @java.lang.Override
+      public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+        return super.clearField(field);
+      }
+
+      @java.lang.Override
+      public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+        return super.clearOneof(oneof);
+      }
+
+      @java.lang.Override
+      public Builder setRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field,
+          int index,
+          java.lang.Object value) {
+        return super.setRepeatedField(field, index, value);
+      }
+
+      @java.lang.Override
+      public Builder addRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+        return super.addRepeatedField(field, value);
+      }
+
+      @java.lang.Override
+      public Builder mergeFrom(com.google.protobuf.Message other) {
+        if (other instanceof com.google.cloud.documentai.v1beta2.Document.Entity) {
+          return mergeFrom((com.google.cloud.documentai.v1beta2.Document.Entity) other);
+        } else {
+          super.mergeFrom(other);
           return this;
         }
-        /**
-         *
-         *
-         * 
-         * A list of detected languages for name together with confidence.
-         * 

-         *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage name_detected_languages = 3;
-         * 
-         */
-        public Builder removeNameDetectedLanguages(int index) {
-          if (nameDetectedLanguagesBuilder_ == null) {
-            ensureNameDetectedLanguagesIsMutable();
-            nameDetectedLanguages_.remove(index);
-            onChanged();
-          } else {
-            nameDetectedLanguagesBuilder_.remove(index);
-          }
+      }
+
+      public Builder mergeFrom(com.google.cloud.documentai.v1beta2.Document.Entity other) {
+        if (other == com.google.cloud.documentai.v1beta2.Document.Entity.getDefaultInstance())
           return this;
+        if (other.hasTextAnchor()) {
+          mergeTextAnchor(other.getTextAnchor());
         }
-        /**
-         *
-         *
-         * 
-         * A list of detected languages for name together with confidence.
-         * 

-         *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage name_detected_languages = 3;
-         * 
-         */
-        public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
-            getNameDetectedLanguagesBuilder(int index) {
-          return getNameDetectedLanguagesFieldBuilder().getBuilder(index);
+        if (!other.getType().isEmpty()) {
+          type_ = other.type_;
+          bitField0_ |= 0x00000002;
+          onChanged();
         }
-        /**
-         *
-         *
-         * 
-         * A list of detected languages for name together with confidence.
-         * 

-         *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage name_detected_languages = 3;
-         * 
-         */
-        public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder
-            getNameDetectedLanguagesOrBuilder(int index) {
-          if (nameDetectedLanguagesBuilder_ == null) {
-            return nameDetectedLanguages_.get(index);
-          } else {
-            return nameDetectedLanguagesBuilder_.getMessageOrBuilder(index);
-          }
+        if (!other.getMentionText().isEmpty()) {
+          mentionText_ = other.mentionText_;
+          bitField0_ |= 0x00000004;
+          onChanged();
+        }
+        if (!other.getMentionId().isEmpty()) {
+          mentionId_ = other.mentionId_;
+          bitField0_ |= 0x00000008;
+          onChanged();
         }
-        /**
-         *
-         *
-         * 
-         * A list of detected languages for name together with confidence.
-         * 

-         *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage name_detected_languages = 3;
-         * 
-         */
-        public java.util.List<
-                ? extends
-                    com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>
-            getNameDetectedLanguagesOrBuilderList() {
-          if (nameDetectedLanguagesBuilder_ != null) {
-            return nameDetectedLanguagesBuilder_.getMessageOrBuilderList();
-          } else {
-            return java.util.Collections.unmodifiableList(nameDetectedLanguages_);
-          }
+        if (other.getConfidence() != 0F) {
+          setConfidence(other.getConfidence());
         }
-        /**
-         *
-         *
-         * 
-         * A list of detected languages for name together with confidence.
-         * 

-         *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage name_detected_languages = 3;
-         * 
-         */
-        public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
-            addNameDetectedLanguagesBuilder() {
-          return getNameDetectedLanguagesFieldBuilder()
-              .addBuilder(
-                  com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage
-                      .getDefaultInstance());
+        if (other.hasPageAnchor()) {
+          mergePageAnchor(other.getPageAnchor());
         }
-        /**
-         *
-         *
-         * 
-         * A list of detected languages for name together with confidence.
-         * 

-         *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage name_detected_languages = 3;
-         * 
-         */
-        public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
-            addNameDetectedLanguagesBuilder(int index) {
-          return getNameDetectedLanguagesFieldBuilder()
-              .addBuilder(
-                  index,
-                  com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage
-                      .getDefaultInstance());
+        if (!other.getId().isEmpty()) {
+          id_ = other.id_;
+          bitField0_ |= 0x00000040;
+          onChanged();
         }
-        /**
-         *
-         *
-         * 
-         * A list of detected languages for name together with confidence.
-         * 

-         *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage name_detected_languages = 3;
-         * 
-         */
-        public java.util.List<
-                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder>
-            getNameDetectedLanguagesBuilderList() {
-          return getNameDetectedLanguagesFieldBuilder().getBuilderList();
+        if (other.hasNormalizedValue()) {
+          mergeNormalizedValue(other.getNormalizedValue());
         }
-
-        private com.google.protobuf.RepeatedFieldBuilderV3<
-                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage,
-                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder,
-                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>
-            getNameDetectedLanguagesFieldBuilder() {
-          if (nameDetectedLanguagesBuilder_ == null) {
-            nameDetectedLanguagesBuilder_ =
-                new com.google.protobuf.RepeatedFieldBuilderV3<
-                    com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage,
-                    com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder,
-                    com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>(
-                    nameDetectedLanguages_,
-                    ((bitField0_ & 0x00000004) != 0),
-                    getParentForChildren(),
-                    isClean());
-            nameDetectedLanguages_ = null;
+        if (propertiesBuilder_ == null) {
+          if (!other.properties_.isEmpty()) {
+            if (properties_.isEmpty()) {
+              properties_ = other.properties_;
+              bitField0_ = (bitField0_ & ~0x00000100);
+            } else {
+              ensurePropertiesIsMutable();
+              properties_.addAll(other.properties_);
+            }
+            onChanged();
+          }
+        } else {
+          if (!other.properties_.isEmpty()) {
+            if (propertiesBuilder_.isEmpty()) {
+              propertiesBuilder_.dispose();
+              propertiesBuilder_ = null;
+              properties_ = other.properties_;
+              bitField0_ = (bitField0_ & ~0x00000100);
+              propertiesBuilder_ =
+                  com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders
+                      ? getPropertiesFieldBuilder()
+                      : null;
+            } else {
+              propertiesBuilder_.addAllMessages(other.properties_);
+            }
           }
-          return nameDetectedLanguagesBuilder_;
         }
+        if (other.hasProvenance()) {
+          mergeProvenance(other.getProvenance());
+        }
+        if (other.getRedacted() != false) {
+          setRedacted(other.getRedacted());
+        }
+        this.mergeUnknownFields(other.getUnknownFields());
+        onChanged();
+        return this;
+      }
 
-        private java.util.List
-            valueDetectedLanguages_ = java.util.Collections.emptyList();
+      @java.lang.Override
+      public final boolean isInitialized() {
+        return true;
+      }
 
-        private void ensureValueDetectedLanguagesIsMutable() {
-          if (!((bitField0_ & 0x00000008) != 0)) {
-            valueDetectedLanguages_ =
-                new java.util.ArrayList<
-                    com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage>(
-                    valueDetectedLanguages_);
-            bitField0_ |= 0x00000008;
-          }
+      @java.lang.Override
+      public Builder mergeFrom(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+        if (extensionRegistry == null) {
+          throw new java.lang.NullPointerException();
         }
+        try {
+          boolean done = false;
+          while (!done) {
+            int tag = input.readTag();
+            switch (tag) {
+              case 0:
+                done = true;
+                break;
+              case 10:
+                {
+                  input.readMessage(getTextAnchorFieldBuilder().getBuilder(), extensionRegistry);
+                  bitField0_ |= 0x00000001;
+                  break;
+                } // case 10
+              case 18:
+                {
+                  type_ = input.readStringRequireUtf8();
+                  bitField0_ |= 0x00000002;
+                  break;
+                } // case 18
+              case 26:
+                {
+                  mentionText_ = input.readStringRequireUtf8();
+                  bitField0_ |= 0x00000004;
+                  break;
+                } // case 26
+              case 34:
+                {
+                  mentionId_ = input.readStringRequireUtf8();
+                  bitField0_ |= 0x00000008;
+                  break;
+                } // case 34
+              case 45:
+                {
+                  confidence_ = input.readFloat();
+                  bitField0_ |= 0x00000010;
+                  break;
+                } // case 45
+              case 50:
+                {
+                  input.readMessage(getPageAnchorFieldBuilder().getBuilder(), extensionRegistry);
+                  bitField0_ |= 0x00000020;
+                  break;
+                } // case 50
+              case 58:
+                {
+                  id_ = input.readStringRequireUtf8();
+                  bitField0_ |= 0x00000040;
+                  break;
+                } // case 58
+              case 74:
+                {
+                  input.readMessage(
+                      getNormalizedValueFieldBuilder().getBuilder(), extensionRegistry);
+                  bitField0_ |= 0x00000080;
+                  break;
+                } // case 74
+              case 82:
+                {
+                  com.google.cloud.documentai.v1beta2.Document.Entity m =
+                      input.readMessage(
+                          com.google.cloud.documentai.v1beta2.Document.Entity.parser(),
+                          extensionRegistry);
+                  if (propertiesBuilder_ == null) {
+                    ensurePropertiesIsMutable();
+                    properties_.add(m);
+                  } else {
+                    propertiesBuilder_.addMessage(m);
+                  }
+                  break;
+                } // case 82
+              case 90:
+                {
+                  input.readMessage(getProvenanceFieldBuilder().getBuilder(), extensionRegistry);
+                  bitField0_ |= 0x00000200;
+                  break;
+                } // case 90
+              case 96:
+                {
+                  redacted_ = input.readBool();
+                  bitField0_ |= 0x00000400;
+                  break;
+                } // case 96
+              default:
+                {
+                  if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                    done = true; // was an endgroup tag
+                  }
+                  break;
+                } // default:
+            } // switch (tag)
+          } // while (!done)
+        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          throw e.unwrapIOException();
+        } finally {
+          onChanged();
+        } // finally
+        return this;
+      }
 
-        private com.google.protobuf.RepeatedFieldBuilderV3<
-                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage,
-                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder,
-                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>
-            valueDetectedLanguagesBuilder_;
+      private int bitField0_;
 
-        /**
-         *
-         *
-         * 
-         * A list of detected languages for value together with confidence.
-         * 

-         *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value_detected_languages = 4;
-         * 
-         */
-        public java.util.List
-            getValueDetectedLanguagesList() {
-          if (valueDetectedLanguagesBuilder_ == null) {
-            return java.util.Collections.unmodifiableList(valueDetectedLanguages_);
-          } else {
-            return valueDetectedLanguagesBuilder_.getMessageList();
-          }
+      private com.google.cloud.documentai.v1beta2.Document.TextAnchor textAnchor_;
+      private com.google.protobuf.SingleFieldBuilderV3<
+              com.google.cloud.documentai.v1beta2.Document.TextAnchor,
+              com.google.cloud.documentai.v1beta2.Document.TextAnchor.Builder,
+              com.google.cloud.documentai.v1beta2.Document.TextAnchorOrBuilder>
+          textAnchorBuilder_;
+      /**
+       *
+       *
+       * 
+       * Optional. Provenance of the entity.
+       * Text anchor indexing into the
+       * [Document.text][google.cloud.documentai.v1beta2.Document.text].
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta2.Document.TextAnchor text_anchor = 1 [(.google.api.field_behavior) = OPTIONAL];
+       * 
+       *
+       * @return Whether the textAnchor field is set.
+       */
+      public boolean hasTextAnchor() {
+        return ((bitField0_ & 0x00000001) != 0);
+      }
+      /**
+       *
+       *
+       * 
+       * Optional. Provenance of the entity.
+       * Text anchor indexing into the
+       * [Document.text][google.cloud.documentai.v1beta2.Document.text].
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta2.Document.TextAnchor text_anchor = 1 [(.google.api.field_behavior) = OPTIONAL];
+       * 
+       *
+       * @return The textAnchor.
+       */
+      public com.google.cloud.documentai.v1beta2.Document.TextAnchor getTextAnchor() {
+        if (textAnchorBuilder_ == null) {
+          return textAnchor_ == null
+              ? com.google.cloud.documentai.v1beta2.Document.TextAnchor.getDefaultInstance()
+              : textAnchor_;
+        } else {
+          return textAnchorBuilder_.getMessage();
         }
-        /**
-         *
-         *
-         * 
-         * A list of detected languages for value together with confidence.
-         * 

-         *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value_detected_languages = 4;
-         * 
-         */
-        public int getValueDetectedLanguagesCount() {
-          if (valueDetectedLanguagesBuilder_ == null) {
-            return valueDetectedLanguages_.size();
-          } else {
-            return valueDetectedLanguagesBuilder_.getCount();
+      }
+      /**
+       *
+       *
+       * 
+       * Optional. Provenance of the entity.
+       * Text anchor indexing into the
+       * [Document.text][google.cloud.documentai.v1beta2.Document.text].
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta2.Document.TextAnchor text_anchor = 1 [(.google.api.field_behavior) = OPTIONAL];
+       * 
+       */
+      public Builder setTextAnchor(com.google.cloud.documentai.v1beta2.Document.TextAnchor value) {
+        if (textAnchorBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
           }
+          textAnchor_ = value;
+        } else {
+          textAnchorBuilder_.setMessage(value);
         }
-        /**
-         *
-         *
-         * 
-         * A list of detected languages for value together with confidence.
-         * 

-         *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value_detected_languages = 4;
-         * 
-         */
-        public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage
-            getValueDetectedLanguages(int index) {
-          if (valueDetectedLanguagesBuilder_ == null) {
-            return valueDetectedLanguages_.get(index);
-          } else {
-            return valueDetectedLanguagesBuilder_.getMessage(index);
-          }
+        bitField0_ |= 0x00000001;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * Optional. Provenance of the entity.
+       * Text anchor indexing into the
+       * [Document.text][google.cloud.documentai.v1beta2.Document.text].
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta2.Document.TextAnchor text_anchor = 1 [(.google.api.field_behavior) = OPTIONAL];
+       * 
+       */
+      public Builder setTextAnchor(
+          com.google.cloud.documentai.v1beta2.Document.TextAnchor.Builder builderForValue) {
+        if (textAnchorBuilder_ == null) {
+          textAnchor_ = builderForValue.build();
+        } else {
+          textAnchorBuilder_.setMessage(builderForValue.build());
         }
-        /**
-         *
-         *
-         * 
-         * A list of detected languages for value together with confidence.
-         * 

-         *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value_detected_languages = 4;
-         * 
-         */
-        public Builder setValueDetectedLanguages(
-            int index, com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value) {
-          if (valueDetectedLanguagesBuilder_ == null) {
-            if (value == null) {
-              throw new NullPointerException();
-            }
-            ensureValueDetectedLanguagesIsMutable();
-            valueDetectedLanguages_.set(index, value);
-            onChanged();
+        bitField0_ |= 0x00000001;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * Optional. Provenance of the entity.
+       * Text anchor indexing into the
+       * [Document.text][google.cloud.documentai.v1beta2.Document.text].
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta2.Document.TextAnchor text_anchor = 1 [(.google.api.field_behavior) = OPTIONAL];
+       * 
+       */
+      public Builder mergeTextAnchor(
+          com.google.cloud.documentai.v1beta2.Document.TextAnchor value) {
+        if (textAnchorBuilder_ == null) {
+          if (((bitField0_ & 0x00000001) != 0)
+              && textAnchor_ != null
+              && textAnchor_
+                  != com.google.cloud.documentai.v1beta2.Document.TextAnchor.getDefaultInstance()) {
+            getTextAnchorBuilder().mergeFrom(value);
           } else {
-            valueDetectedLanguagesBuilder_.setMessage(index, value);
+            textAnchor_ = value;
           }
-          return this;
+        } else {
+          textAnchorBuilder_.mergeFrom(value);
         }
-        /**
-         *
-         *
-         * 
-         * A list of detected languages for value together with confidence.
-         * 

-         *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value_detected_languages = 4;
-         * 
-         */
-        public Builder setValueDetectedLanguages(
-            int index,
-            com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
-                builderForValue) {
-          if (valueDetectedLanguagesBuilder_ == null) {
-            ensureValueDetectedLanguagesIsMutable();
-            valueDetectedLanguages_.set(index, builderForValue.build());
-            onChanged();
-          } else {
-            valueDetectedLanguagesBuilder_.setMessage(index, builderForValue.build());
-          }
-          return this;
+        bitField0_ |= 0x00000001;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * Optional. Provenance of the entity.
+       * Text anchor indexing into the
+       * [Document.text][google.cloud.documentai.v1beta2.Document.text].
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta2.Document.TextAnchor text_anchor = 1 [(.google.api.field_behavior) = OPTIONAL];
+       * 
+       */
+      public Builder clearTextAnchor() {
+        bitField0_ = (bitField0_ & ~0x00000001);
+        textAnchor_ = null;
+        if (textAnchorBuilder_ != null) {
+          textAnchorBuilder_.dispose();
+          textAnchorBuilder_ = null;
         }
-        /**
-         *
-         *
-         * 
-         * A list of detected languages for value together with confidence.
-         * 

-         *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value_detected_languages = 4;
-         * 
-         */
-        public Builder addValueDetectedLanguages(
-            com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value) {
-          if (valueDetectedLanguagesBuilder_ == null) {
-            if (value == null) {
-              throw new NullPointerException();
-            }
-            ensureValueDetectedLanguagesIsMutable();
-            valueDetectedLanguages_.add(value);
-            onChanged();
-          } else {
-            valueDetectedLanguagesBuilder_.addMessage(value);
-          }
-          return this;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * Optional. Provenance of the entity.
+       * Text anchor indexing into the
+       * [Document.text][google.cloud.documentai.v1beta2.Document.text].
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta2.Document.TextAnchor text_anchor = 1 [(.google.api.field_behavior) = OPTIONAL];
+       * 
+       */
+      public com.google.cloud.documentai.v1beta2.Document.TextAnchor.Builder
+          getTextAnchorBuilder() {
+        bitField0_ |= 0x00000001;
+        onChanged();
+        return getTextAnchorFieldBuilder().getBuilder();
+      }
+      /**
+       *
+       *
+       * 
+       * Optional. Provenance of the entity.
+       * Text anchor indexing into the
+       * [Document.text][google.cloud.documentai.v1beta2.Document.text].
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta2.Document.TextAnchor text_anchor = 1 [(.google.api.field_behavior) = OPTIONAL];
+       * 
+       */
+      public com.google.cloud.documentai.v1beta2.Document.TextAnchorOrBuilder
+          getTextAnchorOrBuilder() {
+        if (textAnchorBuilder_ != null) {
+          return textAnchorBuilder_.getMessageOrBuilder();
+        } else {
+          return textAnchor_ == null
+              ? com.google.cloud.documentai.v1beta2.Document.TextAnchor.getDefaultInstance()
+              : textAnchor_;
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * Optional. Provenance of the entity.
+       * Text anchor indexing into the
+       * [Document.text][google.cloud.documentai.v1beta2.Document.text].
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta2.Document.TextAnchor text_anchor = 1 [(.google.api.field_behavior) = OPTIONAL];
+       * 
+       */
+      private com.google.protobuf.SingleFieldBuilderV3<
+              com.google.cloud.documentai.v1beta2.Document.TextAnchor,
+              com.google.cloud.documentai.v1beta2.Document.TextAnchor.Builder,
+              com.google.cloud.documentai.v1beta2.Document.TextAnchorOrBuilder>
+          getTextAnchorFieldBuilder() {
+        if (textAnchorBuilder_ == null) {
+          textAnchorBuilder_ =
+              new com.google.protobuf.SingleFieldBuilderV3<
+                  com.google.cloud.documentai.v1beta2.Document.TextAnchor,
+                  com.google.cloud.documentai.v1beta2.Document.TextAnchor.Builder,
+                  com.google.cloud.documentai.v1beta2.Document.TextAnchorOrBuilder>(
+                  getTextAnchor(), getParentForChildren(), isClean());
+          textAnchor_ = null;
         }
-        /**
-         *
-         *
-         * 
-         * A list of detected languages for value together with confidence.
-         * 

-         *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value_detected_languages = 4;
-         * 
-         */
-        public Builder addValueDetectedLanguages(
-            int index, com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value) {
-          if (valueDetectedLanguagesBuilder_ == null) {
-            if (value == null) {
-              throw new NullPointerException();
-            }
-            ensureValueDetectedLanguagesIsMutable();
-            valueDetectedLanguages_.add(index, value);
-            onChanged();
-          } else {
-            valueDetectedLanguagesBuilder_.addMessage(index, value);
-          }
-          return this;
+        return textAnchorBuilder_;
+      }
+
+      private java.lang.Object type_ = "";
+      /**
+       *
+       *
+       * 
+       * Required. Entity type from a schema e.g. `Address`.
+       * 

+       *
+       * string type = 2 [(.google.api.field_behavior) = REQUIRED];
+       *
+       * @return The type.
+       */
+      public java.lang.String getType() {
+        java.lang.Object ref = type_;
+        if (!(ref instanceof java.lang.String)) {
+          com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+          java.lang.String s = bs.toStringUtf8();
+          type_ = s;
+          return s;
+        } else {
+          return (java.lang.String) ref;
         }
-        /**
-         *
-         *
-         * 
-         * A list of detected languages for value together with confidence.
-         * 

-         *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value_detected_languages = 4;
-         * 
-         */
-        public Builder addValueDetectedLanguages(
-            com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
-                builderForValue) {
-          if (valueDetectedLanguagesBuilder_ == null) {
-            ensureValueDetectedLanguagesIsMutable();
-            valueDetectedLanguages_.add(builderForValue.build());
-            onChanged();
-          } else {
-            valueDetectedLanguagesBuilder_.addMessage(builderForValue.build());
-          }
-          return this;
+      }
+      /**
+       *
+       *
+       * 
+       * Required. Entity type from a schema e.g. `Address`.
+       * 

+       *
+       * string type = 2 [(.google.api.field_behavior) = REQUIRED];
+       *
+       * @return The bytes for type.
+       */
+      public com.google.protobuf.ByteString getTypeBytes() {
+        java.lang.Object ref = type_;
+        if (ref instanceof String) {
+          com.google.protobuf.ByteString b =
+              com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+          type_ = b;
+          return b;
+        } else {
+          return (com.google.protobuf.ByteString) ref;
         }
-        /**
-         *
-         *
-         * 
-         * A list of detected languages for value together with confidence.
-         * 

-         *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value_detected_languages = 4;
-         * 
-         */
-        public Builder addValueDetectedLanguages(
-            int index,
-            com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
-                builderForValue) {
-          if (valueDetectedLanguagesBuilder_ == null) {
-            ensureValueDetectedLanguagesIsMutable();
-            valueDetectedLanguages_.add(index, builderForValue.build());
-            onChanged();
-          } else {
-            valueDetectedLanguagesBuilder_.addMessage(index, builderForValue.build());
-          }
-          return this;
+      }
+      /**
+       *
+       *
+       * 
+       * Required. Entity type from a schema e.g. `Address`.
+       * 

+       *
+       * string type = 2 [(.google.api.field_behavior) = REQUIRED];
+       *
+       * @param value The type to set.
+       * @return This builder for chaining.
+       */
+      public Builder setType(java.lang.String value) {
+        if (value == null) {
+          throw new NullPointerException();
         }
-        /**
-         *
-         *
-         * 
-         * A list of detected languages for value together with confidence.
-         * 

-         *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value_detected_languages = 4;
-         * 
-         */
-        public Builder addAllValueDetectedLanguages(
-            java.lang.Iterable<
-                    ? extends com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage>
-                values) {
-          if (valueDetectedLanguagesBuilder_ == null) {
-            ensureValueDetectedLanguagesIsMutable();
-            com.google.protobuf.AbstractMessageLite.Builder.addAll(values, valueDetectedLanguages_);
-            onChanged();
-          } else {
-            valueDetectedLanguagesBuilder_.addAllMessages(values);
-          }
-          return this;
+        type_ = value;
+        bitField0_ |= 0x00000002;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * Required. Entity type from a schema e.g. `Address`.
+       * 

+       *
+       * string type = 2 [(.google.api.field_behavior) = REQUIRED];
+       *
+       * @return This builder for chaining.
+       */
+      public Builder clearType() {
+        type_ = getDefaultInstance().getType();
+        bitField0_ = (bitField0_ & ~0x00000002);
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * Required. Entity type from a schema e.g. `Address`.
+       * 

+       *
+       * string type = 2 [(.google.api.field_behavior) = REQUIRED];
+       *
+       * @param value The bytes for type to set.
+       * @return This builder for chaining.
+       */
+      public Builder setTypeBytes(com.google.protobuf.ByteString value) {
+        if (value == null) {
+          throw new NullPointerException();
         }
-        /**
-         *
-         *
-         * 
-         * A list of detected languages for value together with confidence.
-         * 

-         *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value_detected_languages = 4;
-         * 
-         */
-        public Builder clearValueDetectedLanguages() {
-          if (valueDetectedLanguagesBuilder_ == null) {
-            valueDetectedLanguages_ = java.util.Collections.emptyList();
-            bitField0_ = (bitField0_ & ~0x00000008);
-            onChanged();
-          } else {
-            valueDetectedLanguagesBuilder_.clear();
-          }
-          return this;
+        checkByteStringIsUtf8(value);
+        type_ = value;
+        bitField0_ |= 0x00000002;
+        onChanged();
+        return this;
+      }
+
+      private java.lang.Object mentionText_ = "";
+      /**
+       *
+       *
+       * 
+       * Optional. Text value of the entity e.g. `1600 Amphitheatre Pkwy`.
+       * 

+       *
+       * string mention_text = 3 [(.google.api.field_behavior) = OPTIONAL];
+       *
+       * @return The mentionText.
+       */
+      public java.lang.String getMentionText() {
+        java.lang.Object ref = mentionText_;
+        if (!(ref instanceof java.lang.String)) {
+          com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+          java.lang.String s = bs.toStringUtf8();
+          mentionText_ = s;
+          return s;
+        } else {
+          return (java.lang.String) ref;
         }
-        /**
-         *
-         *
-         * 
-         * A list of detected languages for value together with confidence.
-         * 

-         *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value_detected_languages = 4;
-         * 
-         */
-        public Builder removeValueDetectedLanguages(int index) {
-          if (valueDetectedLanguagesBuilder_ == null) {
-            ensureValueDetectedLanguagesIsMutable();
-            valueDetectedLanguages_.remove(index);
-            onChanged();
-          } else {
-            valueDetectedLanguagesBuilder_.remove(index);
-          }
-          return this;
+      }
+      /**
+       *
+       *
+       * 
+       * Optional. Text value of the entity e.g. `1600 Amphitheatre Pkwy`.
+       * 

+       *
+       * string mention_text = 3 [(.google.api.field_behavior) = OPTIONAL];
+       *
+       * @return The bytes for mentionText.
+       */
+      public com.google.protobuf.ByteString getMentionTextBytes() {
+        java.lang.Object ref = mentionText_;
+        if (ref instanceof String) {
+          com.google.protobuf.ByteString b =
+              com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+          mentionText_ = b;
+          return b;
+        } else {
+          return (com.google.protobuf.ByteString) ref;
         }
-        /**
-         *
-         *
-         * 
-         * A list of detected languages for value together with confidence.
-         * 

-         *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value_detected_languages = 4;
-         * 
-         */
-        public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
-            getValueDetectedLanguagesBuilder(int index) {
-          return getValueDetectedLanguagesFieldBuilder().getBuilder(index);
+      }
+      /**
+       *
+       *
+       * 
+       * Optional. Text value of the entity e.g. `1600 Amphitheatre Pkwy`.
+       * 

+       *
+       * string mention_text = 3 [(.google.api.field_behavior) = OPTIONAL];
+       *
+       * @param value The mentionText to set.
+       * @return This builder for chaining.
+       */
+      public Builder setMentionText(java.lang.String value) {
+        if (value == null) {
+          throw new NullPointerException();
         }
-        /**
-         *
-         *
-         * 
-         * A list of detected languages for value together with confidence.
-         * 

-         *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value_detected_languages = 4;
-         * 
-         */
-        public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder
-            getValueDetectedLanguagesOrBuilder(int index) {
-          if (valueDetectedLanguagesBuilder_ == null) {
-            return valueDetectedLanguages_.get(index);
-          } else {
-            return valueDetectedLanguagesBuilder_.getMessageOrBuilder(index);
-          }
+        mentionText_ = value;
+        bitField0_ |= 0x00000004;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * Optional. Text value of the entity e.g. `1600 Amphitheatre Pkwy`.
+       * 

+       *
+       * string mention_text = 3 [(.google.api.field_behavior) = OPTIONAL];
+       *
+       * @return This builder for chaining.
+       */
+      public Builder clearMentionText() {
+        mentionText_ = getDefaultInstance().getMentionText();
+        bitField0_ = (bitField0_ & ~0x00000004);
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * Optional. Text value of the entity e.g. `1600 Amphitheatre Pkwy`.
+       * 

+       *
+       * string mention_text = 3 [(.google.api.field_behavior) = OPTIONAL];
+       *
+       * @param value The bytes for mentionText to set.
+       * @return This builder for chaining.
+       */
+      public Builder setMentionTextBytes(com.google.protobuf.ByteString value) {
+        if (value == null) {
+          throw new NullPointerException();
         }
-        /**
-         *
-         *
-         * 
-         * A list of detected languages for value together with confidence.
-         * 

-         *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value_detected_languages = 4;
-         * 
-         */
-        public java.util.List<
-                ? extends
-                    com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>
-            getValueDetectedLanguagesOrBuilderList() {
-          if (valueDetectedLanguagesBuilder_ != null) {
-            return valueDetectedLanguagesBuilder_.getMessageOrBuilderList();
-          } else {
-            return java.util.Collections.unmodifiableList(valueDetectedLanguages_);
-          }
+        checkByteStringIsUtf8(value);
+        mentionText_ = value;
+        bitField0_ |= 0x00000004;
+        onChanged();
+        return this;
+      }
+
+      private java.lang.Object mentionId_ = "";
+      /**
+       *
+       *
+       * 
+       * Optional. Deprecated.  Use `id` field instead.
+       * 

+       *
+       * string mention_id = 4 [(.google.api.field_behavior) = OPTIONAL];
+       *
+       * @return The mentionId.
+       */
+      public java.lang.String getMentionId() {
+        java.lang.Object ref = mentionId_;
+        if (!(ref instanceof java.lang.String)) {
+          com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+          java.lang.String s = bs.toStringUtf8();
+          mentionId_ = s;
+          return s;
+        } else {
+          return (java.lang.String) ref;
         }
-        /**
-         *
-         *
-         * 
-         * A list of detected languages for value together with confidence.
-         * 

-         *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value_detected_languages = 4;
-         * 
-         */
-        public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
-            addValueDetectedLanguagesBuilder() {
-          return getValueDetectedLanguagesFieldBuilder()
-              .addBuilder(
-                  com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage
-                      .getDefaultInstance());
+      }
+      /**
+       *
+       *
+       * 
+       * Optional. Deprecated.  Use `id` field instead.
+       * 

+       *
+       * string mention_id = 4 [(.google.api.field_behavior) = OPTIONAL];
+       *
+       * @return The bytes for mentionId.
+       */
+      public com.google.protobuf.ByteString getMentionIdBytes() {
+        java.lang.Object ref = mentionId_;
+        if (ref instanceof String) {
+          com.google.protobuf.ByteString b =
+              com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+          mentionId_ = b;
+          return b;
+        } else {
+          return (com.google.protobuf.ByteString) ref;
         }
-        /**
-         *
-         *
-         * 
-         * A list of detected languages for value together with confidence.
-         * 

-         *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value_detected_languages = 4;
-         * 
-         */
-        public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
-            addValueDetectedLanguagesBuilder(int index) {
-          return getValueDetectedLanguagesFieldBuilder()
-              .addBuilder(
-                  index,
-                  com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage
-                      .getDefaultInstance());
+      }
+      /**
+       *
+       *
+       * 
+       * Optional. Deprecated.  Use `id` field instead.
+       * 

+       *
+       * string mention_id = 4 [(.google.api.field_behavior) = OPTIONAL];
+       *
+       * @param value The mentionId to set.
+       * @return This builder for chaining.
+       */
+      public Builder setMentionId(java.lang.String value) {
+        if (value == null) {
+          throw new NullPointerException();
         }
-        /**
-         *
-         *
-         * 
-         * A list of detected languages for value together with confidence.
-         * 

-         *
-         * 
-         * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value_detected_languages = 4;
-         * 
-         */
-        public java.util.List<
-                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder>
-            getValueDetectedLanguagesBuilderList() {
-          return getValueDetectedLanguagesFieldBuilder().getBuilderList();
+        mentionId_ = value;
+        bitField0_ |= 0x00000008;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * Optional. Deprecated.  Use `id` field instead.
+       * 

+       *
+       * string mention_id = 4 [(.google.api.field_behavior) = OPTIONAL];
+       *
+       * @return This builder for chaining.
+       */
+      public Builder clearMentionId() {
+        mentionId_ = getDefaultInstance().getMentionId();
+        bitField0_ = (bitField0_ & ~0x00000008);
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * Optional. Deprecated.  Use `id` field instead.
+       * 

+       *
+       * string mention_id = 4 [(.google.api.field_behavior) = OPTIONAL];
+       *
+       * @param value The bytes for mentionId to set.
+       * @return This builder for chaining.
+       */
+      public Builder setMentionIdBytes(com.google.protobuf.ByteString value) {
+        if (value == null) {
+          throw new NullPointerException();
         }
+        checkByteStringIsUtf8(value);
+        mentionId_ = value;
+        bitField0_ |= 0x00000008;
+        onChanged();
+        return this;
+      }
 
-        private com.google.protobuf.RepeatedFieldBuilderV3<
-                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage,
-                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder,
-                com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>
-            getValueDetectedLanguagesFieldBuilder() {
-          if (valueDetectedLanguagesBuilder_ == null) {
-            valueDetectedLanguagesBuilder_ =
-                new com.google.protobuf.RepeatedFieldBuilderV3<
-                    com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage,
-                    com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder,
-                    com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>(
-                    valueDetectedLanguages_,
-                    ((bitField0_ & 0x00000008) != 0),
-                    getParentForChildren(),
-                    isClean());
-            valueDetectedLanguages_ = null;
-          }
-          return valueDetectedLanguagesBuilder_;
-        }
+      private float confidence_;
+      /**
+       *
+       *
+       * 
+       * Optional. Confidence of detected Schema entity. Range `[0, 1]`.
+       * 

+       *
+       * float confidence = 5 [(.google.api.field_behavior) = OPTIONAL];
+       *
+       * @return The confidence.
+       */
+      @java.lang.Override
+      public float getConfidence() {
+        return confidence_;
+      }
+      /**
+       *
+       *
+       * 
+       * Optional. Confidence of detected Schema entity. Range `[0, 1]`.
+       * 

+       *
+       * float confidence = 5 [(.google.api.field_behavior) = OPTIONAL];
+       *
+       * @param value The confidence to set.
+       * @return This builder for chaining.
+       */
+      public Builder setConfidence(float value) {
 
-        private java.lang.Object valueType_ = "";
-        /**
-         *
-         *
-         * 
-         * If the value is non-textual, this field represents the type. Current
-         * valid values are:
-         * - blank (this indicates the field_value is normal text)
-         * - "unfilled_checkbox"
-         * - "filled_checkbox"
-         * 

-         *
-         * string value_type = 5;
-         *
-         * @return The valueType.
-         */
-        public java.lang.String getValueType() {
-          java.lang.Object ref = valueType_;
-          if (!(ref instanceof java.lang.String)) {
-            com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
-            java.lang.String s = bs.toStringUtf8();
-            valueType_ = s;
-            return s;
-          } else {
-            return (java.lang.String) ref;
-          }
-        }
-        /**
-         *
-         *
-         * 
-         * If the value is non-textual, this field represents the type. Current
-         * valid values are:
-         * - blank (this indicates the field_value is normal text)
-         * - "unfilled_checkbox"
-         * - "filled_checkbox"
-         * 

-         *
-         * string value_type = 5;
-         *
-         * @return The bytes for valueType.
-         */
-        public com.google.protobuf.ByteString getValueTypeBytes() {
-          java.lang.Object ref = valueType_;
-          if (ref instanceof String) {
-            com.google.protobuf.ByteString b =
-                com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
-            valueType_ = b;
-            return b;
-          } else {
-            return (com.google.protobuf.ByteString) ref;
-          }
+        confidence_ = value;
+        bitField0_ |= 0x00000010;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * Optional. Confidence of detected Schema entity. Range `[0, 1]`.
+       * 

+       *
+       * float confidence = 5 [(.google.api.field_behavior) = OPTIONAL];
+       *
+       * @return This builder for chaining.
+       */
+      public Builder clearConfidence() {
+        bitField0_ = (bitField0_ & ~0x00000010);
+        confidence_ = 0F;
+        onChanged();
+        return this;
+      }
+
+      private com.google.cloud.documentai.v1beta2.Document.PageAnchor pageAnchor_;
+      private com.google.protobuf.SingleFieldBuilderV3<
+              com.google.cloud.documentai.v1beta2.Document.PageAnchor,
+              com.google.cloud.documentai.v1beta2.Document.PageAnchor.Builder,
+              com.google.cloud.documentai.v1beta2.Document.PageAnchorOrBuilder>
+          pageAnchorBuilder_;
+      /**
+       *
+       *
+       * 
+       * Optional. Represents the provenance of this entity wrt. the location on
+       * the page where it was found.
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta2.Document.PageAnchor page_anchor = 6 [(.google.api.field_behavior) = OPTIONAL];
+       * 
+       *
+       * @return Whether the pageAnchor field is set.
+       */
+      public boolean hasPageAnchor() {
+        return ((bitField0_ & 0x00000020) != 0);
+      }
+      /**
+       *
+       *
+       * 
+       * Optional. Represents the provenance of this entity wrt. the location on
+       * the page where it was found.
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta2.Document.PageAnchor page_anchor = 6 [(.google.api.field_behavior) = OPTIONAL];
+       * 
+       *
+       * @return The pageAnchor.
+       */
+      public com.google.cloud.documentai.v1beta2.Document.PageAnchor getPageAnchor() {
+        if (pageAnchorBuilder_ == null) {
+          return pageAnchor_ == null
+              ? com.google.cloud.documentai.v1beta2.Document.PageAnchor.getDefaultInstance()
+              : pageAnchor_;
+        } else {
+          return pageAnchorBuilder_.getMessage();
         }
-        /**
-         *
-         *
-         * 
-         * If the value is non-textual, this field represents the type. Current
-         * valid values are:
-         * - blank (this indicates the field_value is normal text)
-         * - "unfilled_checkbox"
-         * - "filled_checkbox"
-         * 

-         *
-         * string value_type = 5;
-         *
-         * @param value The valueType to set.
-         * @return This builder for chaining.
-         */
-        public Builder setValueType(java.lang.String value) {
+      }
+      /**
+       *
+       *
+       * 
+       * Optional. Represents the provenance of this entity wrt. the location on
+       * the page where it was found.
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta2.Document.PageAnchor page_anchor = 6 [(.google.api.field_behavior) = OPTIONAL];
+       * 
+       */
+      public Builder setPageAnchor(com.google.cloud.documentai.v1beta2.Document.PageAnchor value) {
+        if (pageAnchorBuilder_ == null) {
           if (value == null) {
             throw new NullPointerException();
           }
-          valueType_ = value;
-          bitField0_ |= 0x00000010;
-          onChanged();
-          return this;
-        }
-        /**
-         *
-         *
-         * 
-         * If the value is non-textual, this field represents the type. Current
-         * valid values are:
-         * - blank (this indicates the field_value is normal text)
-         * - "unfilled_checkbox"
-         * - "filled_checkbox"
-         * 

-         *
-         * string value_type = 5;
-         *
-         * @return This builder for chaining.
-         */
-        public Builder clearValueType() {
-          valueType_ = getDefaultInstance().getValueType();
-          bitField0_ = (bitField0_ & ~0x00000010);
-          onChanged();
-          return this;
+          pageAnchor_ = value;
+        } else {
+          pageAnchorBuilder_.setMessage(value);
         }
-        /**
-         *
-         *
-         * 
-         * If the value is non-textual, this field represents the type. Current
-         * valid values are:
-         * - blank (this indicates the field_value is normal text)
-         * - "unfilled_checkbox"
-         * - "filled_checkbox"
-         * 

-         *
-         * string value_type = 5;
-         *
-         * @param value The bytes for valueType to set.
-         * @return This builder for chaining.
-         */
-        public Builder setValueTypeBytes(com.google.protobuf.ByteString value) {
-          if (value == null) {
-            throw new NullPointerException();
-          }
-          checkByteStringIsUtf8(value);
-          valueType_ = value;
-          bitField0_ |= 0x00000010;
-          onChanged();
-          return this;
+        bitField0_ |= 0x00000020;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * Optional. Represents the provenance of this entity wrt. the location on
+       * the page where it was found.
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta2.Document.PageAnchor page_anchor = 6 [(.google.api.field_behavior) = OPTIONAL];
+       * 
+       */
+      public Builder setPageAnchor(
+          com.google.cloud.documentai.v1beta2.Document.PageAnchor.Builder builderForValue) {
+        if (pageAnchorBuilder_ == null) {
+          pageAnchor_ = builderForValue.build();
+        } else {
+          pageAnchorBuilder_.setMessage(builderForValue.build());
         }
-
-        private java.lang.Object correctedKeyText_ = "";
-        /**
-         *
-         *
-         * 
-         * An internal field, created for Labeling UI to export key text.
-         * 

-         *
-         * string corrected_key_text = 6;
-         *
-         * @return The correctedKeyText.
-         */
-        public java.lang.String getCorrectedKeyText() {
-          java.lang.Object ref = correctedKeyText_;
-          if (!(ref instanceof java.lang.String)) {
-            com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
-            java.lang.String s = bs.toStringUtf8();
-            correctedKeyText_ = s;
-            return s;
+        bitField0_ |= 0x00000020;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * Optional. Represents the provenance of this entity wrt. the location on
+       * the page where it was found.
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta2.Document.PageAnchor page_anchor = 6 [(.google.api.field_behavior) = OPTIONAL];
+       * 
+       */
+      public Builder mergePageAnchor(
+          com.google.cloud.documentai.v1beta2.Document.PageAnchor value) {
+        if (pageAnchorBuilder_ == null) {
+          if (((bitField0_ & 0x00000020) != 0)
+              && pageAnchor_ != null
+              && pageAnchor_
+                  != com.google.cloud.documentai.v1beta2.Document.PageAnchor.getDefaultInstance()) {
+            getPageAnchorBuilder().mergeFrom(value);
           } else {
-            return (java.lang.String) ref;
+            pageAnchor_ = value;
           }
+        } else {
+          pageAnchorBuilder_.mergeFrom(value);
         }
-        /**
-         *
-         *
-         * 
-         * An internal field, created for Labeling UI to export key text.
-         * 

-         *
-         * string corrected_key_text = 6;
-         *
-         * @return The bytes for correctedKeyText.
-         */
-        public com.google.protobuf.ByteString getCorrectedKeyTextBytes() {
-          java.lang.Object ref = correctedKeyText_;
-          if (ref instanceof String) {
-            com.google.protobuf.ByteString b =
-                com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
-            correctedKeyText_ = b;
-            return b;
-          } else {
-            return (com.google.protobuf.ByteString) ref;
-          }
+        bitField0_ |= 0x00000020;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * Optional. Represents the provenance of this entity wrt. the location on
+       * the page where it was found.
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta2.Document.PageAnchor page_anchor = 6 [(.google.api.field_behavior) = OPTIONAL];
+       * 
+       */
+      public Builder clearPageAnchor() {
+        bitField0_ = (bitField0_ & ~0x00000020);
+        pageAnchor_ = null;
+        if (pageAnchorBuilder_ != null) {
+          pageAnchorBuilder_.dispose();
+          pageAnchorBuilder_ = null;
         }
-        /**
-         *
-         *
-         * 
-         * An internal field, created for Labeling UI to export key text.
-         * 

-         *
-         * string corrected_key_text = 6;
-         *
-         * @param value The correctedKeyText to set.
-         * @return This builder for chaining.
-         */
-        public Builder setCorrectedKeyText(java.lang.String value) {
-          if (value == null) {
-            throw new NullPointerException();
-          }
-          correctedKeyText_ = value;
-          bitField0_ |= 0x00000020;
-          onChanged();
-          return this;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * Optional. Represents the provenance of this entity wrt. the location on
+       * the page where it was found.
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta2.Document.PageAnchor page_anchor = 6 [(.google.api.field_behavior) = OPTIONAL];
+       * 
+       */
+      public com.google.cloud.documentai.v1beta2.Document.PageAnchor.Builder
+          getPageAnchorBuilder() {
+        bitField0_ |= 0x00000020;
+        onChanged();
+        return getPageAnchorFieldBuilder().getBuilder();
+      }
+      /**
+       *
+       *
+       * 
+       * Optional. Represents the provenance of this entity wrt. the location on
+       * the page where it was found.
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta2.Document.PageAnchor page_anchor = 6 [(.google.api.field_behavior) = OPTIONAL];
+       * 
+       */
+      public com.google.cloud.documentai.v1beta2.Document.PageAnchorOrBuilder
+          getPageAnchorOrBuilder() {
+        if (pageAnchorBuilder_ != null) {
+          return pageAnchorBuilder_.getMessageOrBuilder();
+        } else {
+          return pageAnchor_ == null
+              ? com.google.cloud.documentai.v1beta2.Document.PageAnchor.getDefaultInstance()
+              : pageAnchor_;
         }
-        /**
-         *
-         *
-         * 
-         * An internal field, created for Labeling UI to export key text.
-         * 

-         *
-         * string corrected_key_text = 6;
-         *
-         * @return This builder for chaining.
-         */
-        public Builder clearCorrectedKeyText() {
-          correctedKeyText_ = getDefaultInstance().getCorrectedKeyText();
-          bitField0_ = (bitField0_ & ~0x00000020);
-          onChanged();
-          return this;
+      }
+      /**
+       *
+       *
+       * 
+       * Optional. Represents the provenance of this entity wrt. the location on
+       * the page where it was found.
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta2.Document.PageAnchor page_anchor = 6 [(.google.api.field_behavior) = OPTIONAL];
+       * 
+       */
+      private com.google.protobuf.SingleFieldBuilderV3<
+              com.google.cloud.documentai.v1beta2.Document.PageAnchor,
+              com.google.cloud.documentai.v1beta2.Document.PageAnchor.Builder,
+              com.google.cloud.documentai.v1beta2.Document.PageAnchorOrBuilder>
+          getPageAnchorFieldBuilder() {
+        if (pageAnchorBuilder_ == null) {
+          pageAnchorBuilder_ =
+              new com.google.protobuf.SingleFieldBuilderV3<
+                  com.google.cloud.documentai.v1beta2.Document.PageAnchor,
+                  com.google.cloud.documentai.v1beta2.Document.PageAnchor.Builder,
+                  com.google.cloud.documentai.v1beta2.Document.PageAnchorOrBuilder>(
+                  getPageAnchor(), getParentForChildren(), isClean());
+          pageAnchor_ = null;
+        }
+        return pageAnchorBuilder_;
+      }
+
+      private java.lang.Object id_ = "";
+      /**
+       *
+       *
+       * 
+       * Optional. Canonical id. This will be a unique value in the entity list
+       * for this document.
+       * 

+       *
+       * string id = 7 [(.google.api.field_behavior) = OPTIONAL];
+       *
+       * @return The id.
+       */
+      public java.lang.String getId() {
+        java.lang.Object ref = id_;
+        if (!(ref instanceof java.lang.String)) {
+          com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+          java.lang.String s = bs.toStringUtf8();
+          id_ = s;
+          return s;
+        } else {
+          return (java.lang.String) ref;
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * Optional. Canonical id. This will be a unique value in the entity list
+       * for this document.
+       * 

+       *
+       * string id = 7 [(.google.api.field_behavior) = OPTIONAL];
+       *
+       * @return The bytes for id.
+       */
+      public com.google.protobuf.ByteString getIdBytes() {
+        java.lang.Object ref = id_;
+        if (ref instanceof String) {
+          com.google.protobuf.ByteString b =
+              com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+          id_ = b;
+          return b;
+        } else {
+          return (com.google.protobuf.ByteString) ref;
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * Optional. Canonical id. This will be a unique value in the entity list
+       * for this document.
+       * 

+       *
+       * string id = 7 [(.google.api.field_behavior) = OPTIONAL];
+       *
+       * @param value The id to set.
+       * @return This builder for chaining.
+       */
+      public Builder setId(java.lang.String value) {
+        if (value == null) {
+          throw new NullPointerException();
         }
-        /**
-         *
-         *
-         * 
-         * An internal field, created for Labeling UI to export key text.
-         * 

-         *
-         * string corrected_key_text = 6;
-         *
-         * @param value The bytes for correctedKeyText to set.
-         * @return This builder for chaining.
-         */
-        public Builder setCorrectedKeyTextBytes(com.google.protobuf.ByteString value) {
-          if (value == null) {
-            throw new NullPointerException();
-          }
-          checkByteStringIsUtf8(value);
-          correctedKeyText_ = value;
-          bitField0_ |= 0x00000020;
-          onChanged();
-          return this;
+        id_ = value;
+        bitField0_ |= 0x00000040;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * Optional. Canonical id. This will be a unique value in the entity list
+       * for this document.
+       * 

+       *
+       * string id = 7 [(.google.api.field_behavior) = OPTIONAL];
+       *
+       * @return This builder for chaining.
+       */
+      public Builder clearId() {
+        id_ = getDefaultInstance().getId();
+        bitField0_ = (bitField0_ & ~0x00000040);
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * Optional. Canonical id. This will be a unique value in the entity list
+       * for this document.
+       * 

+       *
+       * string id = 7 [(.google.api.field_behavior) = OPTIONAL];
+       *
+       * @param value The bytes for id to set.
+       * @return This builder for chaining.
+       */
+      public Builder setIdBytes(com.google.protobuf.ByteString value) {
+        if (value == null) {
+          throw new NullPointerException();
         }
+        checkByteStringIsUtf8(value);
+        id_ = value;
+        bitField0_ |= 0x00000040;
+        onChanged();
+        return this;
+      }
 
-        private java.lang.Object correctedValueText_ = "";
-        /**
-         *
-         *
-         * 
-         * An internal field, created for Labeling UI to export value text.
-         * 

-         *
-         * string corrected_value_text = 7;
-         *
-         * @return The correctedValueText.
-         */
-        public java.lang.String getCorrectedValueText() {
-          java.lang.Object ref = correctedValueText_;
-          if (!(ref instanceof java.lang.String)) {
-            com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
-            java.lang.String s = bs.toStringUtf8();
-            correctedValueText_ = s;
-            return s;
-          } else {
-            return (java.lang.String) ref;
-          }
-        }
-        /**
-         *
-         *
-         * 
-         * An internal field, created for Labeling UI to export value text.
-         * 

-         *
-         * string corrected_value_text = 7;
-         *
-         * @return The bytes for correctedValueText.
-         */
-        public com.google.protobuf.ByteString getCorrectedValueTextBytes() {
-          java.lang.Object ref = correctedValueText_;
-          if (ref instanceof String) {
-            com.google.protobuf.ByteString b =
-                com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
-            correctedValueText_ = b;
-            return b;
-          } else {
-            return (com.google.protobuf.ByteString) ref;
-          }
+      private com.google.cloud.documentai.v1beta2.Document.Entity.NormalizedValue normalizedValue_;
+      private com.google.protobuf.SingleFieldBuilderV3<
+              com.google.cloud.documentai.v1beta2.Document.Entity.NormalizedValue,
+              com.google.cloud.documentai.v1beta2.Document.Entity.NormalizedValue.Builder,
+              com.google.cloud.documentai.v1beta2.Document.Entity.NormalizedValueOrBuilder>
+          normalizedValueBuilder_;
+      /**
+       *
+       *
+       * 
+       * Optional. Normalized entity value. Absent if the extracted value could
+       * not be converted or the type (e.g. address) is not supported for certain
+       * parsers. This field is also only populated for certain supported document
+       * types.
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta2.Document.Entity.NormalizedValue normalized_value = 9 [(.google.api.field_behavior) = OPTIONAL];
+       * 
+       *
+       * @return Whether the normalizedValue field is set.
+       */
+      public boolean hasNormalizedValue() {
+        return ((bitField0_ & 0x00000080) != 0);
+      }
+      /**
+       *
+       *
+       * 
+       * Optional. Normalized entity value. Absent if the extracted value could
+       * not be converted or the type (e.g. address) is not supported for certain
+       * parsers. This field is also only populated for certain supported document
+       * types.
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta2.Document.Entity.NormalizedValue normalized_value = 9 [(.google.api.field_behavior) = OPTIONAL];
+       * 
+       *
+       * @return The normalizedValue.
+       */
+      public com.google.cloud.documentai.v1beta2.Document.Entity.NormalizedValue
+          getNormalizedValue() {
+        if (normalizedValueBuilder_ == null) {
+          return normalizedValue_ == null
+              ? com.google.cloud.documentai.v1beta2.Document.Entity.NormalizedValue
+                  .getDefaultInstance()
+              : normalizedValue_;
+        } else {
+          return normalizedValueBuilder_.getMessage();
         }
-        /**
-         *
-         *
-         * 
-         * An internal field, created for Labeling UI to export value text.
-         * 

-         *
-         * string corrected_value_text = 7;
-         *
-         * @param value The correctedValueText to set.
-         * @return This builder for chaining.
-         */
-        public Builder setCorrectedValueText(java.lang.String value) {
+      }
+      /**
+       *
+       *
+       * 
+       * Optional. Normalized entity value. Absent if the extracted value could
+       * not be converted or the type (e.g. address) is not supported for certain
+       * parsers. This field is also only populated for certain supported document
+       * types.
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta2.Document.Entity.NormalizedValue normalized_value = 9 [(.google.api.field_behavior) = OPTIONAL];
+       * 
+       */
+      public Builder setNormalizedValue(
+          com.google.cloud.documentai.v1beta2.Document.Entity.NormalizedValue value) {
+        if (normalizedValueBuilder_ == null) {
           if (value == null) {
             throw new NullPointerException();
           }
-          correctedValueText_ = value;
-          bitField0_ |= 0x00000040;
-          onChanged();
-          return this;
+          normalizedValue_ = value;
+        } else {
+          normalizedValueBuilder_.setMessage(value);
         }
-        /**
-         *
-         *
-         * 
-         * An internal field, created for Labeling UI to export value text.
-         * 

-         *
-         * string corrected_value_text = 7;
-         *
-         * @return This builder for chaining.
-         */
-        public Builder clearCorrectedValueText() {
-          correctedValueText_ = getDefaultInstance().getCorrectedValueText();
-          bitField0_ = (bitField0_ & ~0x00000040);
-          onChanged();
-          return this;
+        bitField0_ |= 0x00000080;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * Optional. Normalized entity value. Absent if the extracted value could
+       * not be converted or the type (e.g. address) is not supported for certain
+       * parsers. This field is also only populated for certain supported document
+       * types.
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta2.Document.Entity.NormalizedValue normalized_value = 9 [(.google.api.field_behavior) = OPTIONAL];
+       * 
+       */
+      public Builder setNormalizedValue(
+          com.google.cloud.documentai.v1beta2.Document.Entity.NormalizedValue.Builder
+              builderForValue) {
+        if (normalizedValueBuilder_ == null) {
+          normalizedValue_ = builderForValue.build();
+        } else {
+          normalizedValueBuilder_.setMessage(builderForValue.build());
         }
-        /**
-         *
-         *
-         * 
-         * An internal field, created for Labeling UI to export value text.
-         * 

-         *
-         * string corrected_value_text = 7;
-         *
-         * @param value The bytes for correctedValueText to set.
-         * @return This builder for chaining.
-         */
-        public Builder setCorrectedValueTextBytes(com.google.protobuf.ByteString value) {
-          if (value == null) {
-            throw new NullPointerException();
+        bitField0_ |= 0x00000080;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * Optional. Normalized entity value. Absent if the extracted value could
+       * not be converted or the type (e.g. address) is not supported for certain
+       * parsers. This field is also only populated for certain supported document
+       * types.
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta2.Document.Entity.NormalizedValue normalized_value = 9 [(.google.api.field_behavior) = OPTIONAL];
+       * 
+       */
+      public Builder mergeNormalizedValue(
+          com.google.cloud.documentai.v1beta2.Document.Entity.NormalizedValue value) {
+        if (normalizedValueBuilder_ == null) {
+          if (((bitField0_ & 0x00000080) != 0)
+              && normalizedValue_ != null
+              && normalizedValue_
+                  != com.google.cloud.documentai.v1beta2.Document.Entity.NormalizedValue
+                      .getDefaultInstance()) {
+            getNormalizedValueBuilder().mergeFrom(value);
+          } else {
+            normalizedValue_ = value;
           }
-          checkByteStringIsUtf8(value);
-          correctedValueText_ = value;
-          bitField0_ |= 0x00000040;
-          onChanged();
-          return this;
-        }
-
-        @java.lang.Override
-        public final Builder setUnknownFields(
-            final com.google.protobuf.UnknownFieldSet unknownFields) {
-          return super.setUnknownFields(unknownFields);
+        } else {
+          normalizedValueBuilder_.mergeFrom(value);
         }
-
-        @java.lang.Override
-        public final Builder mergeUnknownFields(
-            final com.google.protobuf.UnknownFieldSet unknownFields) {
-          return super.mergeUnknownFields(unknownFields);
+        bitField0_ |= 0x00000080;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * Optional. Normalized entity value. Absent if the extracted value could
+       * not be converted or the type (e.g. address) is not supported for certain
+       * parsers. This field is also only populated for certain supported document
+       * types.
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta2.Document.Entity.NormalizedValue normalized_value = 9 [(.google.api.field_behavior) = OPTIONAL];
+       * 
+       */
+      public Builder clearNormalizedValue() {
+        bitField0_ = (bitField0_ & ~0x00000080);
+        normalizedValue_ = null;
+        if (normalizedValueBuilder_ != null) {
+          normalizedValueBuilder_.dispose();
+          normalizedValueBuilder_ = null;
         }
-
-        // @@protoc_insertion_point(builder_scope:google.cloud.documentai.v1beta2.Document.Page.FormField)
+        onChanged();
+        return this;
       }
-
-      // @@protoc_insertion_point(class_scope:google.cloud.documentai.v1beta2.Document.Page.FormField)
-      private static final com.google.cloud.documentai.v1beta2.Document.Page.FormField
-          DEFAULT_INSTANCE;
-
-      static {
-        DEFAULT_INSTANCE = new com.google.cloud.documentai.v1beta2.Document.Page.FormField();
+      /**
+       *
+       *
+       * 
+       * Optional. Normalized entity value. Absent if the extracted value could
+       * not be converted or the type (e.g. address) is not supported for certain
+       * parsers. This field is also only populated for certain supported document
+       * types.
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta2.Document.Entity.NormalizedValue normalized_value = 9 [(.google.api.field_behavior) = OPTIONAL];
+       * 
+       */
+      public com.google.cloud.documentai.v1beta2.Document.Entity.NormalizedValue.Builder
+          getNormalizedValueBuilder() {
+        bitField0_ |= 0x00000080;
+        onChanged();
+        return getNormalizedValueFieldBuilder().getBuilder();
       }
-
-      public static com.google.cloud.documentai.v1beta2.Document.Page.FormField
-          getDefaultInstance() {
-        return DEFAULT_INSTANCE;
+      /**
+       *
+       *
+       * 
+       * Optional. Normalized entity value. Absent if the extracted value could
+       * not be converted or the type (e.g. address) is not supported for certain
+       * parsers. This field is also only populated for certain supported document
+       * types.
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta2.Document.Entity.NormalizedValue normalized_value = 9 [(.google.api.field_behavior) = OPTIONAL];
+       * 
+       */
+      public com.google.cloud.documentai.v1beta2.Document.Entity.NormalizedValueOrBuilder
+          getNormalizedValueOrBuilder() {
+        if (normalizedValueBuilder_ != null) {
+          return normalizedValueBuilder_.getMessageOrBuilder();
+        } else {
+          return normalizedValue_ == null
+              ? com.google.cloud.documentai.v1beta2.Document.Entity.NormalizedValue
+                  .getDefaultInstance()
+              : normalizedValue_;
+        }
       }
-
-      private static final com.google.protobuf.Parser PARSER =
-          new com.google.protobuf.AbstractParser() {
-            @java.lang.Override
-            public FormField parsePartialFrom(
-                com.google.protobuf.CodedInputStream input,
-                com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-                throws com.google.protobuf.InvalidProtocolBufferException {
-              Builder builder = newBuilder();
-              try {
-                builder.mergeFrom(input, extensionRegistry);
-              } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-                throw e.setUnfinishedMessage(builder.buildPartial());
-              } catch (com.google.protobuf.UninitializedMessageException e) {
-                throw e.asInvalidProtocolBufferException()
-                    .setUnfinishedMessage(builder.buildPartial());
-              } catch (java.io.IOException e) {
-                throw new com.google.protobuf.InvalidProtocolBufferException(e)
-                    .setUnfinishedMessage(builder.buildPartial());
-              }
-              return builder.buildPartial();
-            }
-          };
-
-      public static com.google.protobuf.Parser parser() {
-        return PARSER;
+      /**
+       *
+       *
+       * 
+       * Optional. Normalized entity value. Absent if the extracted value could
+       * not be converted or the type (e.g. address) is not supported for certain
+       * parsers. This field is also only populated for certain supported document
+       * types.
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta2.Document.Entity.NormalizedValue normalized_value = 9 [(.google.api.field_behavior) = OPTIONAL];
+       * 
+       */
+      private com.google.protobuf.SingleFieldBuilderV3<
+              com.google.cloud.documentai.v1beta2.Document.Entity.NormalizedValue,
+              com.google.cloud.documentai.v1beta2.Document.Entity.NormalizedValue.Builder,
+              com.google.cloud.documentai.v1beta2.Document.Entity.NormalizedValueOrBuilder>
+          getNormalizedValueFieldBuilder() {
+        if (normalizedValueBuilder_ == null) {
+          normalizedValueBuilder_ =
+              new com.google.protobuf.SingleFieldBuilderV3<
+                  com.google.cloud.documentai.v1beta2.Document.Entity.NormalizedValue,
+                  com.google.cloud.documentai.v1beta2.Document.Entity.NormalizedValue.Builder,
+                  com.google.cloud.documentai.v1beta2.Document.Entity.NormalizedValueOrBuilder>(
+                  getNormalizedValue(), getParentForChildren(), isClean());
+          normalizedValue_ = null;
+        }
+        return normalizedValueBuilder_;
       }
 
-      @java.lang.Override
-      public com.google.protobuf.Parser getParserForType() {
-        return PARSER;
-      }
+      private java.util.List properties_ =
+          java.util.Collections.emptyList();
 
-      @java.lang.Override
-      public com.google.cloud.documentai.v1beta2.Document.Page.FormField
-          getDefaultInstanceForType() {
-        return DEFAULT_INSTANCE;
+      private void ensurePropertiesIsMutable() {
+        if (!((bitField0_ & 0x00000100) != 0)) {
+          properties_ =
+              new java.util.ArrayList(
+                  properties_);
+          bitField0_ |= 0x00000100;
+        }
       }
-    }
 
-    public interface DetectedLanguageOrBuilder
-        extends
-        // @@protoc_insertion_point(interface_extends:google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage)
-        com.google.protobuf.MessageOrBuilder {
+      private com.google.protobuf.RepeatedFieldBuilderV3<
+              com.google.cloud.documentai.v1beta2.Document.Entity,
+              com.google.cloud.documentai.v1beta2.Document.Entity.Builder,
+              com.google.cloud.documentai.v1beta2.Document.EntityOrBuilder>
+          propertiesBuilder_;
 
       /**
        *
        *
        * 
-       * The BCP-47 language code, such as "en-US" or "sr-Latn". For more
-       * information, see
-       * http://www.unicode.org/reports/tr35/#Unicode_locale_identifier.
+       * Optional. Entities can be nested to form a hierarchical data structure
+       * representing the content in the document.
        * 

        *
-       * string language_code = 1;
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Entity properties = 10 [(.google.api.field_behavior) = OPTIONAL];
+       * 
+       */
+      public java.util.List
+          getPropertiesList() {
+        if (propertiesBuilder_ == null) {
+          return java.util.Collections.unmodifiableList(properties_);
+        } else {
+          return propertiesBuilder_.getMessageList();
+        }
+      }
+      /**
        *
-       * @return The languageCode.
+       *
+       * 
+       * Optional. Entities can be nested to form a hierarchical data structure
+       * representing the content in the document.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Entity properties = 10 [(.google.api.field_behavior) = OPTIONAL];
+       * 
        */
-      java.lang.String getLanguageCode();
+      public int getPropertiesCount() {
+        if (propertiesBuilder_ == null) {
+          return properties_.size();
+        } else {
+          return propertiesBuilder_.getCount();
+        }
+      }
       /**
        *
        *
        * 
-       * The BCP-47 language code, such as "en-US" or "sr-Latn". For more
-       * information, see
-       * http://www.unicode.org/reports/tr35/#Unicode_locale_identifier.
+       * Optional. Entities can be nested to form a hierarchical data structure
+       * representing the content in the document.
        * 

        *
-       * string language_code = 1;
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Entity properties = 10 [(.google.api.field_behavior) = OPTIONAL];
+       * 
+       */
+      public com.google.cloud.documentai.v1beta2.Document.Entity getProperties(int index) {
+        if (propertiesBuilder_ == null) {
+          return properties_.get(index);
+        } else {
+          return propertiesBuilder_.getMessage(index);
+        }
+      }
+      /**
        *
-       * @return The bytes for languageCode.
+       *
+       * 
+       * Optional. Entities can be nested to form a hierarchical data structure
+       * representing the content in the document.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Entity properties = 10 [(.google.api.field_behavior) = OPTIONAL];
+       * 
        */
-      com.google.protobuf.ByteString getLanguageCodeBytes();
-
+      public Builder setProperties(
+          int index, com.google.cloud.documentai.v1beta2.Document.Entity value) {
+        if (propertiesBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          ensurePropertiesIsMutable();
+          properties_.set(index, value);
+          onChanged();
+        } else {
+          propertiesBuilder_.setMessage(index, value);
+        }
+        return this;
+      }
       /**
        *
        *
        * 
-       * Confidence of detected language. Range [0, 1].
+       * Optional. Entities can be nested to form a hierarchical data structure
+       * representing the content in the document.
        * 

        *
-       * float confidence = 2;
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Entity properties = 10 [(.google.api.field_behavior) = OPTIONAL];
+       * 
+       */
+      public Builder setProperties(
+          int index, com.google.cloud.documentai.v1beta2.Document.Entity.Builder builderForValue) {
+        if (propertiesBuilder_ == null) {
+          ensurePropertiesIsMutable();
+          properties_.set(index, builderForValue.build());
+          onChanged();
+        } else {
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+       * 

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+       * Optional. Entities can be nested to form a hierarchical data structure
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+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Entity properties = 10 [(.google.api.field_behavior) = OPTIONAL];
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       /**
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-         * The BCP-47 language code, such as "en-US" or "sr-Latn". For more
-         * information, see
-         * http://www.unicode.org/reports/tr35/#Unicode_locale_identifier.
-         * 

-         *
-         * string language_code = 1;
-         *
-         * @return The languageCode.
-         */
-        public java.lang.String getLanguageCode() {
-          java.lang.Object ref = languageCode_;
-          if (!(ref instanceof java.lang.String)) {
-            com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
-            java.lang.String s = bs.toStringUtf8();
-            languageCode_ = s;
-            return s;
-          } else {
-            return (java.lang.String) ref;
-          }
-        }
-        /**
-         *
-         *
-         * 
-         * The BCP-47 language code, such as "en-US" or "sr-Latn". For more
-         * information, see
-         * http://www.unicode.org/reports/tr35/#Unicode_locale_identifier.
-         * 

-         *
-         * string language_code = 1;
-         *
-         * @return The bytes for languageCode.
-         */
-        public com.google.protobuf.ByteString getLanguageCodeBytes() {
-          java.lang.Object ref = languageCode_;
-          if (ref instanceof String) {
-            com.google.protobuf.ByteString b =
-                com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
-            languageCode_ = b;
-            return b;
-          } else {
-            return (com.google.protobuf.ByteString) ref;
-          }
-        }
-        /**
-         *
-         *
-         * 
-         * The BCP-47 language code, such as "en-US" or "sr-Latn". For more
-         * information, see
-         * http://www.unicode.org/reports/tr35/#Unicode_locale_identifier.
-         * 

-         *
-         * string language_code = 1;
-         *
-         * @param value The languageCode to set.
-         * @return This builder for chaining.
-         */
-        public Builder setLanguageCode(java.lang.String value) {
-          if (value == null) {
-            throw new NullPointerException();
-          }
-          languageCode_ = value;
-          bitField0_ |= 0x00000001;
-          onChanged();
-          return this;
+      public com.google.cloud.documentai.v1beta2.Document.Entity.Builder addPropertiesBuilder() {
+        return getPropertiesFieldBuilder()
+            .addBuilder(com.google.cloud.documentai.v1beta2.Document.Entity.getDefaultInstance());
+      }
+      /**
+       *
+       *
+       * 
+       * Optional. Entities can be nested to form a hierarchical data structure
+       * representing the content in the document.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Entity properties = 10 [(.google.api.field_behavior) = OPTIONAL];
+       * 
+       */
+      public com.google.cloud.documentai.v1beta2.Document.Entity.Builder addPropertiesBuilder(
+          int index) {
+        return getPropertiesFieldBuilder()
+            .addBuilder(
+                index, com.google.cloud.documentai.v1beta2.Document.Entity.getDefaultInstance());
+      }
+      /**
+       *
+       *
+       * 
+       * Optional. Entities can be nested to form a hierarchical data structure
+       * representing the content in the document.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Entity properties = 10 [(.google.api.field_behavior) = OPTIONAL];
+       * 
+       */
+      public java.util.List
+          getPropertiesBuilderList() {
+        return getPropertiesFieldBuilder().getBuilderList();
+      }
+
+      private com.google.protobuf.RepeatedFieldBuilderV3<
+              com.google.cloud.documentai.v1beta2.Document.Entity,
+              com.google.cloud.documentai.v1beta2.Document.Entity.Builder,
+              com.google.cloud.documentai.v1beta2.Document.EntityOrBuilder>
+          getPropertiesFieldBuilder() {
+        if (propertiesBuilder_ == null) {
+          propertiesBuilder_ =
+              new com.google.protobuf.RepeatedFieldBuilderV3<
+                  com.google.cloud.documentai.v1beta2.Document.Entity,
+                  com.google.cloud.documentai.v1beta2.Document.Entity.Builder,
+                  com.google.cloud.documentai.v1beta2.Document.EntityOrBuilder>(
+                  properties_, ((bitField0_ & 0x00000100) != 0), getParentForChildren(), isClean());
+          properties_ = null;
         }
-        /**
-         *
-         *
-         * 
-         * The BCP-47 language code, such as "en-US" or "sr-Latn". For more
-         * information, see
-         * http://www.unicode.org/reports/tr35/#Unicode_locale_identifier.
-         * 

-         *
-         * string language_code = 1;
-         *
-         * @return This builder for chaining.
-         */
-        public Builder clearLanguageCode() {
-          languageCode_ = getDefaultInstance().getLanguageCode();
-          bitField0_ = (bitField0_ & ~0x00000001);
-          onChanged();
-          return this;
+        return propertiesBuilder_;
+      }
+
+      private com.google.cloud.documentai.v1beta2.Document.Provenance provenance_;
+      private com.google.protobuf.SingleFieldBuilderV3<
+              com.google.cloud.documentai.v1beta2.Document.Provenance,
+              com.google.cloud.documentai.v1beta2.Document.Provenance.Builder,
+              com.google.cloud.documentai.v1beta2.Document.ProvenanceOrBuilder>
+          provenanceBuilder_;
+      /**
+       *
+       *
+       * 
+       * Optional. The history of this annotation.
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 11 [(.google.api.field_behavior) = OPTIONAL];
+       * 
+       *
+       * @return Whether the provenance field is set.
+       */
+      public boolean hasProvenance() {
+        return ((bitField0_ & 0x00000200) != 0);
+      }
+      /**
+       *
+       *
+       * 
+       * Optional. The history of this annotation.
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 11 [(.google.api.field_behavior) = OPTIONAL];
+       * 
+       *
+       * @return The provenance.
+       */
+      public com.google.cloud.documentai.v1beta2.Document.Provenance getProvenance() {
+        if (provenanceBuilder_ == null) {
+          return provenance_ == null
+              ? com.google.cloud.documentai.v1beta2.Document.Provenance.getDefaultInstance()
+              : provenance_;
+        } else {
+          return provenanceBuilder_.getMessage();
         }
-        /**
-         *
-         *
-         * 
-         * The BCP-47 language code, such as "en-US" or "sr-Latn". For more
-         * information, see
-         * http://www.unicode.org/reports/tr35/#Unicode_locale_identifier.
-         * 

-         *
-         * string language_code = 1;
-         *
-         * @param value The bytes for languageCode to set.
-         * @return This builder for chaining.
-         */
-        public Builder setLanguageCodeBytes(com.google.protobuf.ByteString value) {
+      }
+      /**
+       *
+       *
+       * 
+       * Optional. The history of this annotation.
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 11 [(.google.api.field_behavior) = OPTIONAL];
+       * 
+       */
+      public Builder setProvenance(com.google.cloud.documentai.v1beta2.Document.Provenance value) {
+        if (provenanceBuilder_ == null) {
           if (value == null) {
             throw new NullPointerException();
           }
-          checkByteStringIsUtf8(value);
-          languageCode_ = value;
-          bitField0_ |= 0x00000001;
-          onChanged();
-          return this;
+          provenance_ = value;
+        } else {
+          provenanceBuilder_.setMessage(value);
         }
-
-        private float confidence_;
-        /**
-         *
-         *
-         * 
-         * Confidence of detected language. Range [0, 1].
-         * 

-         *
-         * float confidence = 2;
-         *
-         * @return The confidence.
-         */
-        @java.lang.Override
-        public float getConfidence() {
-          return confidence_;
+        bitField0_ |= 0x00000200;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * Optional. The history of this annotation.
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 11 [(.google.api.field_behavior) = OPTIONAL];
+       * 
+       */
+      public Builder setProvenance(
+          com.google.cloud.documentai.v1beta2.Document.Provenance.Builder builderForValue) {
+        if (provenanceBuilder_ == null) {
+          provenance_ = builderForValue.build();
+        } else {
+          provenanceBuilder_.setMessage(builderForValue.build());
         }
-        /**
-         *
-         *
-         * 
-         * Confidence of detected language. Range [0, 1].
-         * 

-         *
-         * float confidence = 2;
-         *
-         * @param value The confidence to set.
-         * @return This builder for chaining.
-         */
-        public Builder setConfidence(float value) {
-
-          confidence_ = value;
-          bitField0_ |= 0x00000002;
-          onChanged();
-          return this;
+        bitField0_ |= 0x00000200;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * Optional. The history of this annotation.
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 11 [(.google.api.field_behavior) = OPTIONAL];
+       * 
+       */
+      public Builder mergeProvenance(
+          com.google.cloud.documentai.v1beta2.Document.Provenance value) {
+        if (provenanceBuilder_ == null) {
+          if (((bitField0_ & 0x00000200) != 0)
+              && provenance_ != null
+              && provenance_
+                  != com.google.cloud.documentai.v1beta2.Document.Provenance.getDefaultInstance()) {
+            getProvenanceBuilder().mergeFrom(value);
+          } else {
+            provenance_ = value;
+          }
+        } else {
+          provenanceBuilder_.mergeFrom(value);
         }
-        /**
-         *
-         *
-         * 
-         * Confidence of detected language. Range [0, 1].
-         * 

-         *
-         * float confidence = 2;
-         *
-         * @return This builder for chaining.
-         */
-        public Builder clearConfidence() {
-          bitField0_ = (bitField0_ & ~0x00000002);
-          confidence_ = 0F;
-          onChanged();
-          return this;
+        bitField0_ |= 0x00000200;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * Optional. The history of this annotation.
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 11 [(.google.api.field_behavior) = OPTIONAL];
+       * 
+       */
+      public Builder clearProvenance() {
+        bitField0_ = (bitField0_ & ~0x00000200);
+        provenance_ = null;
+        if (provenanceBuilder_ != null) {
+          provenanceBuilder_.dispose();
+          provenanceBuilder_ = null;
         }
-
-        @java.lang.Override
-        public final Builder setUnknownFields(
-            final com.google.protobuf.UnknownFieldSet unknownFields) {
-          return super.setUnknownFields(unknownFields);
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * Optional. The history of this annotation.
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 11 [(.google.api.field_behavior) = OPTIONAL];
+       * 
+       */
+      public com.google.cloud.documentai.v1beta2.Document.Provenance.Builder
+          getProvenanceBuilder() {
+        bitField0_ |= 0x00000200;
+        onChanged();
+        return getProvenanceFieldBuilder().getBuilder();
+      }
+      /**
+       *
+       *
+       * 
+       * Optional. The history of this annotation.
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 11 [(.google.api.field_behavior) = OPTIONAL];
+       * 
+       */
+      public com.google.cloud.documentai.v1beta2.Document.ProvenanceOrBuilder
+          getProvenanceOrBuilder() {
+        if (provenanceBuilder_ != null) {
+          return provenanceBuilder_.getMessageOrBuilder();
+        } else {
+          return provenance_ == null
+              ? com.google.cloud.documentai.v1beta2.Document.Provenance.getDefaultInstance()
+              : provenance_;
         }
-
-        @java.lang.Override
-        public final Builder mergeUnknownFields(
-            final com.google.protobuf.UnknownFieldSet unknownFields) {
-          return super.mergeUnknownFields(unknownFields);
+      }
+      /**
+       *
+       *
+       * 
+       * Optional. The history of this annotation.
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta2.Document.Provenance provenance = 11 [(.google.api.field_behavior) = OPTIONAL];
+       * 
+       */
+      private com.google.protobuf.SingleFieldBuilderV3<
+              com.google.cloud.documentai.v1beta2.Document.Provenance,
+              com.google.cloud.documentai.v1beta2.Document.Provenance.Builder,
+              com.google.cloud.documentai.v1beta2.Document.ProvenanceOrBuilder>
+          getProvenanceFieldBuilder() {
+        if (provenanceBuilder_ == null) {
+          provenanceBuilder_ =
+              new com.google.protobuf.SingleFieldBuilderV3<
+                  com.google.cloud.documentai.v1beta2.Document.Provenance,
+                  com.google.cloud.documentai.v1beta2.Document.Provenance.Builder,
+                  com.google.cloud.documentai.v1beta2.Document.ProvenanceOrBuilder>(
+                  getProvenance(), getParentForChildren(), isClean());
+          provenance_ = null;
         }
-
-        // @@protoc_insertion_point(builder_scope:google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage)
+        return provenanceBuilder_;
       }
 
-      // @@protoc_insertion_point(class_scope:google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage)
-      private static final com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage
-          DEFAULT_INSTANCE;
-
-      static {
-        DEFAULT_INSTANCE = new com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage();
+      private boolean redacted_;
+      /**
+       *
+       *
+       * 
+       * Optional. Whether the entity will be redacted for de-identification
+       * purposes.
+       * 

+       *
+       * bool redacted = 12 [(.google.api.field_behavior) = OPTIONAL];
+       *
+       * @return The redacted.
+       */
+      @java.lang.Override
+      public boolean getRedacted() {
+        return redacted_;
       }
+      /**
+       *
+       *
+       * 
+       * Optional. Whether the entity will be redacted for de-identification
+       * purposes.
+       * 

+       *
+       * bool redacted = 12 [(.google.api.field_behavior) = OPTIONAL];
+       *
+       * @param value The redacted to set.
+       * @return This builder for chaining.
+       */
+      public Builder setRedacted(boolean value) {
 
-      public static com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage
-          getDefaultInstance() {
-        return DEFAULT_INSTANCE;
+        redacted_ = value;
+        bitField0_ |= 0x00000400;
+        onChanged();
+        return this;
       }
-
-      private static final com.google.protobuf.Parser PARSER =
-          new com.google.protobuf.AbstractParser() {
-            @java.lang.Override
-            public DetectedLanguage parsePartialFrom(
-                com.google.protobuf.CodedInputStream input,
-                com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-                throws com.google.protobuf.InvalidProtocolBufferException {
-              Builder builder = newBuilder();
-              try {
-                builder.mergeFrom(input, extensionRegistry);
-              } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-                throw e.setUnfinishedMessage(builder.buildPartial());
-              } catch (com.google.protobuf.UninitializedMessageException e) {
-                throw e.asInvalidProtocolBufferException()
-                    .setUnfinishedMessage(builder.buildPartial());
-              } catch (java.io.IOException e) {
-                throw new com.google.protobuf.InvalidProtocolBufferException(e)
-                    .setUnfinishedMessage(builder.buildPartial());
-              }
-              return builder.buildPartial();
-            }
-          };
-
-      public static com.google.protobuf.Parser parser() {
-        return PARSER;
+      /**
+       *
+       *
+       * 
+       * Optional. Whether the entity will be redacted for de-identification
+       * purposes.
+       * 

+       *
+       * bool redacted = 12 [(.google.api.field_behavior) = OPTIONAL];
+       *
+       * @return This builder for chaining.
+       */
+      public Builder clearRedacted() {
+        bitField0_ = (bitField0_ & ~0x00000400);
+        redacted_ = false;
+        onChanged();
+        return this;
       }
 
       @java.lang.Override
-      public com.google.protobuf.Parser getParserForType() {
-        return PARSER;
+      public final Builder setUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.setUnknownFields(unknownFields);
       }
 
       @java.lang.Override
-      public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage
-          getDefaultInstanceForType() {
-        return DEFAULT_INSTANCE;
-      }
-    }
-
-    public static final int PAGE_NUMBER_FIELD_NUMBER = 1;
-    private int pageNumber_ = 0;
-    /**
-     *
-     *
-     * 
-     * 1-based index for current [Page][google.cloud.documentai.v1beta2.Document.Page] in a parent [Document][google.cloud.documentai.v1beta2.Document].
-     * Useful when a page is taken out of a [Document][google.cloud.documentai.v1beta2.Document] for individual
-     * processing.
-     * 

-     *
-     * int32 page_number = 1;
-     *
-     * @return The pageNumber.
-     */
-    @java.lang.Override
-    public int getPageNumber() {
-      return pageNumber_;
-    }
-
-    public static final int DIMENSION_FIELD_NUMBER = 2;
-    private com.google.cloud.documentai.v1beta2.Document.Page.Dimension dimension_;
-    /**
-     *
-     *
-     * 
-     * Physical dimension of the page.
-     * 

-     *
-     * .google.cloud.documentai.v1beta2.Document.Page.Dimension dimension = 2;
-     *
-     * @return Whether the dimension field is set.
-     */
-    @java.lang.Override
-    public boolean hasDimension() {
-      return dimension_ != null;
-    }
-    /**
-     *
-     *
-     * 
-     * Physical dimension of the page.
-     * 

-     *
-     * .google.cloud.documentai.v1beta2.Document.Page.Dimension dimension = 2;
-     *
-     * @return The dimension.
-     */
-    @java.lang.Override
-    public com.google.cloud.documentai.v1beta2.Document.Page.Dimension getDimension() {
-      return dimension_ == null
-          ? com.google.cloud.documentai.v1beta2.Document.Page.Dimension.getDefaultInstance()
-          : dimension_;
-    }
-    /**
-     *
-     *
-     * 
-     * Physical dimension of the page.
-     * 

-     *
-     * .google.cloud.documentai.v1beta2.Document.Page.Dimension dimension = 2;
-     */
-    @java.lang.Override
-    public com.google.cloud.documentai.v1beta2.Document.Page.DimensionOrBuilder
-        getDimensionOrBuilder() {
-      return dimension_ == null
-          ? com.google.cloud.documentai.v1beta2.Document.Page.Dimension.getDefaultInstance()
-          : dimension_;
-    }
-
-    public static final int LAYOUT_FIELD_NUMBER = 3;
-    private com.google.cloud.documentai.v1beta2.Document.Page.Layout layout_;
-    /**
-     *
-     *
-     * 
-     * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for the page.
-     * 

-     *
-     * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 3;
-     *
-     * @return Whether the layout field is set.
-     */
-    @java.lang.Override
-    public boolean hasLayout() {
-      return layout_ != null;
-    }
-    /**
-     *
-     *
-     * 
-     * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for the page.
-     * 

-     *
-     * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 3;
-     *
-     * @return The layout.
-     */
-    @java.lang.Override
-    public com.google.cloud.documentai.v1beta2.Document.Page.Layout getLayout() {
-      return layout_ == null
-          ? com.google.cloud.documentai.v1beta2.Document.Page.Layout.getDefaultInstance()
-          : layout_;
-    }
-    /**
-     *
-     *
-     * 
-     * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for the page.
-     * 

-     *
-     * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 3;
-     */
-    @java.lang.Override
-    public com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder getLayoutOrBuilder() {
-      return layout_ == null
-          ? com.google.cloud.documentai.v1beta2.Document.Page.Layout.getDefaultInstance()
-          : layout_;
-    }
-
-    public static final int DETECTED_LANGUAGES_FIELD_NUMBER = 4;
-
-    @SuppressWarnings("serial")
-    private java.util.List
-        detectedLanguages_;
-    /**
-     *
-     *
-     * 
-     * A list of detected languages together with confidence.
-     * 

-     *
-     * 
-     * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
-     * 
-     */
-    @java.lang.Override
-    public java.util.List
-        getDetectedLanguagesList() {
-      return detectedLanguages_;
-    }
-    /**
-     *
-     *
-     * 
-     * A list of detected languages together with confidence.
-     * 

-     *
-     * 
-     * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
-     * 
-     */
-    @java.lang.Override
-    public java.util.List<
-            ? extends com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>
-        getDetectedLanguagesOrBuilderList() {
-      return detectedLanguages_;
-    }
-    /**
-     *
-     *
-     * 
-     * A list of detected languages together with confidence.
-     * 

-     *
-     * 
-     * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
-     * 
-     */
-    @java.lang.Override
-    public int getDetectedLanguagesCount() {
-      return detectedLanguages_.size();
-    }
-    /**
-     *
-     *
-     * 
-     * A list of detected languages together with confidence.
-     * 

-     *
-     * 
-     * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
-     * 
-     */
-    @java.lang.Override
-    public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage getDetectedLanguages(
-        int index) {
-      return detectedLanguages_.get(index);
-    }
-    /**
-     *
-     *
-     * 
-     * A list of detected languages together with confidence.
-     * 

-     *
-     * 
-     * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
-     * 
-     */
-    @java.lang.Override
-    public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder
-        getDetectedLanguagesOrBuilder(int index) {
-      return detectedLanguages_.get(index);
+      public final Builder mergeUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.mergeUnknownFields(unknownFields);
+      }
+
+      // @@protoc_insertion_point(builder_scope:google.cloud.documentai.v1beta2.Document.Entity)
     }
 
-    public static final int BLOCKS_FIELD_NUMBER = 5;
+    // @@protoc_insertion_point(class_scope:google.cloud.documentai.v1beta2.Document.Entity)
+    private static final com.google.cloud.documentai.v1beta2.Document.Entity DEFAULT_INSTANCE;
 
-    @SuppressWarnings("serial")
-    private java.util.List blocks_;
-    /**
-     *
-     *
-     * 
-     * A list of visually detected text blocks on the page.
-     * A block has a set of lines (collected into paragraphs) that have a common
-     * line-spacing and orientation.
-     * 

-     *
-     * repeated .google.cloud.documentai.v1beta2.Document.Page.Block blocks = 5;
-     */
-    @java.lang.Override
-    public java.util.List getBlocksList() {
-      return blocks_;
-    }
-    /**
-     *
-     *
-     * 
-     * A list of visually detected text blocks on the page.
-     * A block has a set of lines (collected into paragraphs) that have a common
-     * line-spacing and orientation.
-     * 

-     *
-     * repeated .google.cloud.documentai.v1beta2.Document.Page.Block blocks = 5;
-     */
-    @java.lang.Override
-    public java.util.List<
-            ? extends com.google.cloud.documentai.v1beta2.Document.Page.BlockOrBuilder>
-        getBlocksOrBuilderList() {
-      return blocks_;
-    }
-    /**
-     *
-     *
-     * 
-     * A list of visually detected text blocks on the page.
-     * A block has a set of lines (collected into paragraphs) that have a common
-     * line-spacing and orientation.
-     * 

-     *
-     * repeated .google.cloud.documentai.v1beta2.Document.Page.Block blocks = 5;
-     */
-    @java.lang.Override
-    public int getBlocksCount() {
-      return blocks_.size();
-    }
-    /**
-     *
-     *
-     * 
-     * A list of visually detected text blocks on the page.
-     * A block has a set of lines (collected into paragraphs) that have a common
-     * line-spacing and orientation.
-     * 

-     *
-     * repeated .google.cloud.documentai.v1beta2.Document.Page.Block blocks = 5;
-     */
-    @java.lang.Override
-    public com.google.cloud.documentai.v1beta2.Document.Page.Block getBlocks(int index) {
-      return blocks_.get(index);
+    static {
+      DEFAULT_INSTANCE = new com.google.cloud.documentai.v1beta2.Document.Entity();
     }
-    /**
-     *
-     *
-     * 
-     * A list of visually detected text blocks on the page.
-     * A block has a set of lines (collected into paragraphs) that have a common
-     * line-spacing and orientation.
-     * 

-     *
-     * repeated .google.cloud.documentai.v1beta2.Document.Page.Block blocks = 5;
-     */
-    @java.lang.Override
-    public com.google.cloud.documentai.v1beta2.Document.Page.BlockOrBuilder getBlocksOrBuilder(
-        int index) {
-      return blocks_.get(index);
+
+    public static com.google.cloud.documentai.v1beta2.Document.Entity getDefaultInstance() {
+      return DEFAULT_INSTANCE;
     }
 
-    public static final int PARAGRAPHS_FIELD_NUMBER = 6;
+    private static final com.google.protobuf.Parser PARSER =
+        new com.google.protobuf.AbstractParser() {
+          @java.lang.Override
+          public Entity parsePartialFrom(
+              com.google.protobuf.CodedInputStream input,
+              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+              throws com.google.protobuf.InvalidProtocolBufferException {
+            Builder builder = newBuilder();
+            try {
+              builder.mergeFrom(input, extensionRegistry);
+            } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+              throw e.setUnfinishedMessage(builder.buildPartial());
+            } catch (com.google.protobuf.UninitializedMessageException e) {
+              throw e.asInvalidProtocolBufferException()
+                  .setUnfinishedMessage(builder.buildPartial());
+            } catch (java.io.IOException e) {
+              throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                  .setUnfinishedMessage(builder.buildPartial());
+            }
+            return builder.buildPartial();
+          }
+        };
 
-    @SuppressWarnings("serial")
-    private java.util.List paragraphs_;
-    /**
-     *
-     *
-     * 
-     * A list of visually detected text paragraphs on the page.
-     * A collection of lines that a human would perceive as a paragraph.
-     * 

-     *
-     * repeated .google.cloud.documentai.v1beta2.Document.Page.Paragraph paragraphs = 6;
-     * 
-     */
-    @java.lang.Override
-    public java.util.List
-        getParagraphsList() {
-      return paragraphs_;
-    }
-    /**
-     *
-     *
-     * 
-     * A list of visually detected text paragraphs on the page.
-     * A collection of lines that a human would perceive as a paragraph.
-     * 

-     *
-     * repeated .google.cloud.documentai.v1beta2.Document.Page.Paragraph paragraphs = 6;
-     * 
-     */
-    @java.lang.Override
-    public java.util.List<
-            ? extends com.google.cloud.documentai.v1beta2.Document.Page.ParagraphOrBuilder>
-        getParagraphsOrBuilderList() {
-      return paragraphs_;
-    }
-    /**
-     *
-     *
-     * 
-     * A list of visually detected text paragraphs on the page.
-     * A collection of lines that a human would perceive as a paragraph.
-     * 

-     *
-     * repeated .google.cloud.documentai.v1beta2.Document.Page.Paragraph paragraphs = 6;
-     * 
-     */
-    @java.lang.Override
-    public int getParagraphsCount() {
-      return paragraphs_.size();
+    public static com.google.protobuf.Parser parser() {
+      return PARSER;
     }
-    /**
-     *
-     *
-     * 
-     * A list of visually detected text paragraphs on the page.
-     * A collection of lines that a human would perceive as a paragraph.
-     * 

-     *
-     * repeated .google.cloud.documentai.v1beta2.Document.Page.Paragraph paragraphs = 6;
-     * 
-     */
+
     @java.lang.Override
-    public com.google.cloud.documentai.v1beta2.Document.Page.Paragraph getParagraphs(int index) {
-      return paragraphs_.get(index);
+    public com.google.protobuf.Parser getParserForType() {
+      return PARSER;
     }
-    /**
-     *
-     *
-     * 
-     * A list of visually detected text paragraphs on the page.
-     * A collection of lines that a human would perceive as a paragraph.
-     * 

-     *
-     * repeated .google.cloud.documentai.v1beta2.Document.Page.Paragraph paragraphs = 6;
-     * 
-     */
+
     @java.lang.Override
-    public com.google.cloud.documentai.v1beta2.Document.Page.ParagraphOrBuilder
-        getParagraphsOrBuilder(int index) {
-      return paragraphs_.get(index);
+    public com.google.cloud.documentai.v1beta2.Document.Entity getDefaultInstanceForType() {
+      return DEFAULT_INSTANCE;
     }
+  }
 
-    public static final int LINES_FIELD_NUMBER = 7;
+  public interface EntityRelationOrBuilder
+      extends
+      // @@protoc_insertion_point(interface_extends:google.cloud.documentai.v1beta2.Document.EntityRelation)
+      com.google.protobuf.MessageOrBuilder {
 
-    @SuppressWarnings("serial")
-    private java.util.List lines_;
-    /**
-     *
-     *
-     * 
-     * A list of visually detected text lines on the page.
-     * A collection of tokens that a human would perceive as a line.
-     * 

-     *
-     * repeated .google.cloud.documentai.v1beta2.Document.Page.Line lines = 7;
-     */
-    @java.lang.Override
-    public java.util.List getLinesList() {
-      return lines_;
-    }
     /**
      *
      *
      * 
-     * A list of visually detected text lines on the page.
-     * A collection of tokens that a human would perceive as a line.
+     * Subject entity id.
      * 

      *
-     * repeated .google.cloud.documentai.v1beta2.Document.Page.Line lines = 7;
-     */
-    @java.lang.Override
-    public java.util.List
-        getLinesOrBuilderList() {
-      return lines_;
-    }
-    /**
-     *
-     *
-     * 
-     * A list of visually detected text lines on the page.
-     * A collection of tokens that a human would perceive as a line.
-     * 

+     * string subject_id = 1;
      *
-     * repeated .google.cloud.documentai.v1beta2.Document.Page.Line lines = 7;
+     * @return The subjectId.
      */
-    @java.lang.Override
-    public int getLinesCount() {
-      return lines_.size();
-    }
+    java.lang.String getSubjectId();
     /**
      *
      *
      * 
-     * A list of visually detected text lines on the page.
-     * A collection of tokens that a human would perceive as a line.
+     * Subject entity id.
      * 

      *
-     * repeated .google.cloud.documentai.v1beta2.Document.Page.Line lines = 7;
-     */
-    @java.lang.Override
-    public com.google.cloud.documentai.v1beta2.Document.Page.Line getLines(int index) {
-      return lines_.get(index);
-    }
-    /**
-     *
-     *
-     * 
-     * A list of visually detected text lines on the page.
-     * A collection of tokens that a human would perceive as a line.
-     * 

+     * string subject_id = 1;
      *
-     * repeated .google.cloud.documentai.v1beta2.Document.Page.Line lines = 7;
+     * @return The bytes for subjectId.
      */
-    @java.lang.Override
-    public com.google.cloud.documentai.v1beta2.Document.Page.LineOrBuilder getLinesOrBuilder(
-        int index) {
-      return lines_.get(index);
-    }
-
-    public static final int TOKENS_FIELD_NUMBER = 8;
+    com.google.protobuf.ByteString getSubjectIdBytes();
 
-    @SuppressWarnings("serial")
-    private java.util.List tokens_;
     /**
      *
      *
      * 
-     * A list of visually detected tokens on the page.
-     * 

-     *
-     * repeated .google.cloud.documentai.v1beta2.Document.Page.Token tokens = 8;
-     */
-    @java.lang.Override
-    public java.util.List getTokensList() {
-      return tokens_;
-    }
-    /**
-     *
-     *
-     * 
-     * A list of visually detected tokens on the page.
+     * Object entity id.
      * 

      *
-     * repeated .google.cloud.documentai.v1beta2.Document.Page.Token tokens = 8;
-     */
-    @java.lang.Override
-    public java.util.List<
-            ? extends com.google.cloud.documentai.v1beta2.Document.Page.TokenOrBuilder>
-        getTokensOrBuilderList() {
-      return tokens_;
-    }
-    /**
-     *
-     *
-     * 
-     * A list of visually detected tokens on the page.
-     * 

+     * string object_id = 2;
      *
-     * repeated .google.cloud.documentai.v1beta2.Document.Page.Token tokens = 8;
+     * @return The objectId.
      */
-    @java.lang.Override
-    public int getTokensCount() {
-      return tokens_.size();
-    }
+    java.lang.String getObjectId();
     /**
      *
      *
      * 
-     * A list of visually detected tokens on the page.
+     * Object entity id.
      * 

      *
-     * repeated .google.cloud.documentai.v1beta2.Document.Page.Token tokens = 8;
-     */
-    @java.lang.Override
-    public com.google.cloud.documentai.v1beta2.Document.Page.Token getTokens(int index) {
-      return tokens_.get(index);
-    }
-    /**
-     *
-     *
-     * 
-     * A list of visually detected tokens on the page.
-     * 

+     * string object_id = 2;
      *
-     * repeated .google.cloud.documentai.v1beta2.Document.Page.Token tokens = 8;
+     * @return The bytes for objectId.
      */
-    @java.lang.Override
-    public com.google.cloud.documentai.v1beta2.Document.Page.TokenOrBuilder getTokensOrBuilder(
-        int index) {
-      return tokens_.get(index);
-    }
-
-    public static final int VISUAL_ELEMENTS_FIELD_NUMBER = 9;
+    com.google.protobuf.ByteString getObjectIdBytes();
 
-    @SuppressWarnings("serial")
-    private java.util.List
-        visualElements_;
-    /**
-     *
-     *
-     * 
-     * A list of detected non-text visual elements e.g. checkbox,
-     * signature etc. on the page.
-     * 

-     *
-     * 
-     * repeated .google.cloud.documentai.v1beta2.Document.Page.VisualElement visual_elements = 9;
-     * 
-     */
-    @java.lang.Override
-    public java.util.List
-        getVisualElementsList() {
-      return visualElements_;
-    }
     /**
      *
      *
      * 
-     * A list of detected non-text visual elements e.g. checkbox,
-     * signature etc. on the page.
+     * Relationship description.
      * 

      *
-     * 
-     * repeated .google.cloud.documentai.v1beta2.Document.Page.VisualElement visual_elements = 9;
-     * 
-     */
-    @java.lang.Override
-    public java.util.List<
-            ? extends com.google.cloud.documentai.v1beta2.Document.Page.VisualElementOrBuilder>
-        getVisualElementsOrBuilderList() {
-      return visualElements_;
-    }
-    /**
-     *
-     *
-     * 
-     * A list of detected non-text visual elements e.g. checkbox,
-     * signature etc. on the page.
-     * 

+     * string relation = 3;
      *
-     * 
-     * repeated .google.cloud.documentai.v1beta2.Document.Page.VisualElement visual_elements = 9;
-     * 
+     * @return The relation.
      */
-    @java.lang.Override
-    public int getVisualElementsCount() {
-      return visualElements_.size();
-    }
+    java.lang.String getRelation();
     /**
      *
      *
      * 
-     * A list of detected non-text visual elements e.g. checkbox,
-     * signature etc. on the page.
+     * Relationship description.
      * 

      *
-     * 
-     * repeated .google.cloud.documentai.v1beta2.Document.Page.VisualElement visual_elements = 9;
-     * 
-     */
-    @java.lang.Override
-    public com.google.cloud.documentai.v1beta2.Document.Page.VisualElement getVisualElements(
-        int index) {
-      return visualElements_.get(index);
-    }
-    /**
-     *
-     *
-     * 
-     * A list of detected non-text visual elements e.g. checkbox,
-     * signature etc. on the page.
-     * 

+     * string relation = 3;
      *
-     * 
-     * repeated .google.cloud.documentai.v1beta2.Document.Page.VisualElement visual_elements = 9;
-     * 
+     * @return The bytes for relation.
      */
-    @java.lang.Override
-    public com.google.cloud.documentai.v1beta2.Document.Page.VisualElementOrBuilder
-        getVisualElementsOrBuilder(int index) {
-      return visualElements_.get(index);
+    com.google.protobuf.ByteString getRelationBytes();
+  }
+  /**
+   *
+   *
+   * 
+   * Relationship between
+   * [Entities][google.cloud.documentai.v1beta2.Document.Entity].
+   * 

+   *
+   * Protobuf type {@code google.cloud.documentai.v1beta2.Document.EntityRelation}
+   */
+  public static final class EntityRelation extends com.google.protobuf.GeneratedMessageV3
+      implements
+      // @@protoc_insertion_point(message_implements:google.cloud.documentai.v1beta2.Document.EntityRelation)
+      EntityRelationOrBuilder {
+    private static final long serialVersionUID = 0L;
+    // Use EntityRelation.newBuilder() to construct.
+    private EntityRelation(com.google.protobuf.GeneratedMessageV3.Builder builder) {
+      super(builder);
     }
 
-    public static final int TABLES_FIELD_NUMBER = 10;
-
-    @SuppressWarnings("serial")
-    private java.util.List tables_;
-    /**
-     *
-     *
-     * 
-     * A list of visually detected tables on the page.
-     * 

-     *
-     * repeated .google.cloud.documentai.v1beta2.Document.Page.Table tables = 10;
-     */
-    @java.lang.Override
-    public java.util.List getTablesList() {
-      return tables_;
-    }
-    /**
-     *
-     *
-     * 
-     * A list of visually detected tables on the page.
-     * 

-     *
-     * repeated .google.cloud.documentai.v1beta2.Document.Page.Table tables = 10;
-     */
-    @java.lang.Override
-    public java.util.List<
-            ? extends com.google.cloud.documentai.v1beta2.Document.Page.TableOrBuilder>
-        getTablesOrBuilderList() {
-      return tables_;
+    private EntityRelation() {
+      subjectId_ = "";
+      objectId_ = "";
+      relation_ = "";
     }
-    /**
-     *
-     *
-     * 
-     * A list of visually detected tables on the page.
-     * 

-     *
-     * repeated .google.cloud.documentai.v1beta2.Document.Page.Table tables = 10;
-     */
+
     @java.lang.Override
-    public int getTablesCount() {
-      return tables_.size();
+    @SuppressWarnings({"unused"})
+    protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+      return new EntityRelation();
     }
-    /**
-     *
-     *
-     * 
-     * A list of visually detected tables on the page.
-     * 

-     *
-     * repeated .google.cloud.documentai.v1beta2.Document.Page.Table tables = 10;
-     */
-    @java.lang.Override
-    public com.google.cloud.documentai.v1beta2.Document.Page.Table getTables(int index) {
-      return tables_.get(index);
+
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.documentai.v1beta2.DocumentProto
+          .internal_static_google_cloud_documentai_v1beta2_Document_EntityRelation_descriptor;
     }
-    /**
-     *
-     *
-     * 
-     * A list of visually detected tables on the page.
-     * 

-     *
-     * repeated .google.cloud.documentai.v1beta2.Document.Page.Table tables = 10;
-     */
+
     @java.lang.Override
-    public com.google.cloud.documentai.v1beta2.Document.Page.TableOrBuilder getTablesOrBuilder(
-        int index) {
-      return tables_.get(index);
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.documentai.v1beta2.DocumentProto
+          .internal_static_google_cloud_documentai_v1beta2_Document_EntityRelation_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.documentai.v1beta2.Document.EntityRelation.class,
+              com.google.cloud.documentai.v1beta2.Document.EntityRelation.Builder.class);
     }
 
-    public static final int FORM_FIELDS_FIELD_NUMBER = 11;
+    public static final int SUBJECT_ID_FIELD_NUMBER = 1;
 
     @SuppressWarnings("serial")
-    private java.util.List formFields_;
+    private volatile java.lang.Object subjectId_ = "";
     /**
      *
      *
      * 
-     * A list of visually detected form fields on the page.
+     * Subject entity id.
      * 

      *
-     * repeated .google.cloud.documentai.v1beta2.Document.Page.FormField form_fields = 11;
-     * 
+     * string subject_id = 1;
+     *
+     * @return The subjectId.
      */
     @java.lang.Override
-    public java.util.List
-        getFormFieldsList() {
-      return formFields_;
+    public java.lang.String getSubjectId() {
+      java.lang.Object ref = subjectId_;
+      if (ref instanceof java.lang.String) {
+        return (java.lang.String) ref;
+      } else {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        subjectId_ = s;
+        return s;
+      }
     }
     /**
      *
      *
      * 
-     * A list of visually detected form fields on the page.
+     * Subject entity id.
      * 

      *
-     * repeated .google.cloud.documentai.v1beta2.Document.Page.FormField form_fields = 11;
-     * 
+     * string subject_id = 1;
+     *
+     * @return The bytes for subjectId.
      */
     @java.lang.Override
-    public java.util.List<
-            ? extends com.google.cloud.documentai.v1beta2.Document.Page.FormFieldOrBuilder>
-        getFormFieldsOrBuilderList() {
-      return formFields_;
+    public com.google.protobuf.ByteString getSubjectIdBytes() {
+      java.lang.Object ref = subjectId_;
+      if (ref instanceof java.lang.String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        subjectId_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
     }
+
+    public static final int OBJECT_ID_FIELD_NUMBER = 2;
+
+    @SuppressWarnings("serial")
+    private volatile java.lang.Object objectId_ = "";
     /**
      *
      *
      * 
-     * A list of visually detected form fields on the page.
+     * Object entity id.
      * 

      *
-     * repeated .google.cloud.documentai.v1beta2.Document.Page.FormField form_fields = 11;
-     * 
+     * string object_id = 2;
+     *
+     * @return The objectId.
      */
     @java.lang.Override
-    public int getFormFieldsCount() {
-      return formFields_.size();
+    public java.lang.String getObjectId() {
+      java.lang.Object ref = objectId_;
+      if (ref instanceof java.lang.String) {
+        return (java.lang.String) ref;
+      } else {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        objectId_ = s;
+        return s;
+      }
     }
     /**
      *
      *
      * 
-     * A list of visually detected form fields on the page.
+     * Object entity id.
      * 

      *
-     * repeated .google.cloud.documentai.v1beta2.Document.Page.FormField form_fields = 11;
-     * 
+     * string object_id = 2;
+     *
+     * @return The bytes for objectId.
      */
     @java.lang.Override
-    public com.google.cloud.documentai.v1beta2.Document.Page.FormField getFormFields(int index) {
-      return formFields_.get(index);
+    public com.google.protobuf.ByteString getObjectIdBytes() {
+      java.lang.Object ref = objectId_;
+      if (ref instanceof java.lang.String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        objectId_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
     }
+
+    public static final int RELATION_FIELD_NUMBER = 3;
+
+    @SuppressWarnings("serial")
+    private volatile java.lang.Object relation_ = "";
     /**
      *
      *
      * 
-     * A list of visually detected form fields on the page.
+     * Relationship description.
      * 

      *
-     * repeated .google.cloud.documentai.v1beta2.Document.Page.FormField form_fields = 11;
-     * 
+     * string relation = 3;
+     *
+     * @return The relation.
      */
     @java.lang.Override
-    public com.google.cloud.documentai.v1beta2.Document.Page.FormFieldOrBuilder
-        getFormFieldsOrBuilder(int index) {
-      return formFields_.get(index);
-    }
-
-    private byte memoizedIsInitialized = -1;
-
-    @java.lang.Override
-    public final boolean isInitialized() {
-      byte isInitialized = memoizedIsInitialized;
-      if (isInitialized == 1) return true;
-      if (isInitialized == 0) return false;
-
-      memoizedIsInitialized = 1;
-      return true;
-    }
-
-    @java.lang.Override
-    public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
-      if (pageNumber_ != 0) {
-        output.writeInt32(1, pageNumber_);
-      }
-      if (dimension_ != null) {
-        output.writeMessage(2, getDimension());
-      }
-      if (layout_ != null) {
-        output.writeMessage(3, getLayout());
-      }
-      for (int i = 0; i < detectedLanguages_.size(); i++) {
-        output.writeMessage(4, detectedLanguages_.get(i));
-      }
-      for (int i = 0; i < blocks_.size(); i++) {
-        output.writeMessage(5, blocks_.get(i));
-      }
-      for (int i = 0; i < paragraphs_.size(); i++) {
-        output.writeMessage(6, paragraphs_.get(i));
-      }
-      for (int i = 0; i < lines_.size(); i++) {
-        output.writeMessage(7, lines_.get(i));
-      }
-      for (int i = 0; i < tokens_.size(); i++) {
-        output.writeMessage(8, tokens_.get(i));
-      }
-      for (int i = 0; i < visualElements_.size(); i++) {
-        output.writeMessage(9, visualElements_.get(i));
-      }
-      for (int i = 0; i < tables_.size(); i++) {
-        output.writeMessage(10, tables_.get(i));
-      }
-      for (int i = 0; i < formFields_.size(); i++) {
-        output.writeMessage(11, formFields_.get(i));
-      }
-      getUnknownFields().writeTo(output);
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-            getDimensionBuilder().mergeFrom(value);
-          } else {
-            dimension_ = value;
-          }
-        } else {
-          dimensionBuilder_.mergeFrom(value);
+        if (((from_bitField0_ & 0x00000002) != 0)) {
+          result.objectId_ = objectId_;
         }
-        bitField0_ |= 0x00000002;
-        onChanged();
-        return this;
-      }
-      /**
-       *
-       *
-       * 
-       * Physical dimension of the page.
-       * 

-       *
-       * .google.cloud.documentai.v1beta2.Document.Page.Dimension dimension = 2;
-       */
-      public Builder clearDimension() {
-        bitField0_ = (bitField0_ & ~0x00000002);
-        dimension_ = null;
-        if (dimensionBuilder_ != null) {
-          dimensionBuilder_.dispose();
-          dimensionBuilder_ = null;
+        if (((from_bitField0_ & 0x00000004) != 0)) {
+          result.relation_ = relation_;
         }
-        onChanged();
-        return this;
       }
-      /**
-       *
-       *
-       * 
-       * Physical dimension of the page.
-       * 

-       *
-       * .google.cloud.documentai.v1beta2.Document.Page.Dimension dimension = 2;
-       */
-      public com.google.cloud.documentai.v1beta2.Document.Page.Dimension.Builder
-          getDimensionBuilder() {
-        bitField0_ |= 0x00000002;
-        onChanged();
-        return getDimensionFieldBuilder().getBuilder();
+
+      @java.lang.Override
+      public Builder clone() {
+        return super.clone();
       }
-      /**
-       *
-       *
-       * 
-       * Physical dimension of the page.
-       * 

-       *
-       * .google.cloud.documentai.v1beta2.Document.Page.Dimension dimension = 2;
-       */
-      public com.google.cloud.documentai.v1beta2.Document.Page.DimensionOrBuilder
-          getDimensionOrBuilder() {
-        if (dimensionBuilder_ != null) {
-          return dimensionBuilder_.getMessageOrBuilder();
-        } else {
-          return dimension_ == null
-              ? com.google.cloud.documentai.v1beta2.Document.Page.Dimension.getDefaultInstance()
-              : dimension_;
-        }
+
+      @java.lang.Override
+      public Builder setField(
+          com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+        return super.setField(field, value);
       }
-      /**
-       *
-       *
-       * 
-       * Physical dimension of the page.
-       * 

-       *
-       * .google.cloud.documentai.v1beta2.Document.Page.Dimension dimension = 2;
-       */
-      private com.google.protobuf.SingleFieldBuilderV3<
-              com.google.cloud.documentai.v1beta2.Document.Page.Dimension,
-              com.google.cloud.documentai.v1beta2.Document.Page.Dimension.Builder,
-              com.google.cloud.documentai.v1beta2.Document.Page.DimensionOrBuilder>
-          getDimensionFieldBuilder() {
-        if (dimensionBuilder_ == null) {
-          dimensionBuilder_ =
-              new com.google.protobuf.SingleFieldBuilderV3<
-                  com.google.cloud.documentai.v1beta2.Document.Page.Dimension,
-                  com.google.cloud.documentai.v1beta2.Document.Page.Dimension.Builder,
-                  com.google.cloud.documentai.v1beta2.Document.Page.DimensionOrBuilder>(
-                  getDimension(), getParentForChildren(), isClean());
-          dimension_ = null;
-        }
-        return dimensionBuilder_;
+
+      @java.lang.Override
+      public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+        return super.clearField(field);
+      }
+
+      @java.lang.Override
+      public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+        return super.clearOneof(oneof);
+      }
+
+      @java.lang.Override
+      public Builder setRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field,
+          int index,
+          java.lang.Object value) {
+        return super.setRepeatedField(field, index, value);
+      }
+
+      @java.lang.Override
+      public Builder addRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+        return super.addRepeatedField(field, value);
       }
 
-      private com.google.cloud.documentai.v1beta2.Document.Page.Layout layout_;
-      private com.google.protobuf.SingleFieldBuilderV3<
-              com.google.cloud.documentai.v1beta2.Document.Page.Layout,
-              com.google.cloud.documentai.v1beta2.Document.Page.Layout.Builder,
-              com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder>
-          layoutBuilder_;
-      /**
-       *
-       *
-       * 
-       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for the page.
-       * 

-       *
-       * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 3;
-       *
-       * @return Whether the layout field is set.
-       */
-      public boolean hasLayout() {
-        return ((bitField0_ & 0x00000004) != 0);
-      }
-      /**
-       *
-       *
-       * 
-       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for the page.
-       * 

-       *
-       * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 3;
-       *
-       * @return The layout.
-       */
-      public com.google.cloud.documentai.v1beta2.Document.Page.Layout getLayout() {
-        if (layoutBuilder_ == null) {
-          return layout_ == null
-              ? com.google.cloud.documentai.v1beta2.Document.Page.Layout.getDefaultInstance()
-              : layout_;
+      @java.lang.Override
+      public Builder mergeFrom(com.google.protobuf.Message other) {
+        if (other instanceof com.google.cloud.documentai.v1beta2.Document.EntityRelation) {
+          return mergeFrom((com.google.cloud.documentai.v1beta2.Document.EntityRelation) other);
         } else {
-          return layoutBuilder_.getMessage();
+          super.mergeFrom(other);
+          return this;
         }
       }
-      /**
-       *
-       *
-       * 
-       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for the page.
-       * 

-       *
-       * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 3;
-       */
-      public Builder setLayout(com.google.cloud.documentai.v1beta2.Document.Page.Layout value) {
-        if (layoutBuilder_ == null) {
-          if (value == null) {
-            throw new NullPointerException();
-          }
-          layout_ = value;
-        } else {
-          layoutBuilder_.setMessage(value);
+
+      public Builder mergeFrom(com.google.cloud.documentai.v1beta2.Document.EntityRelation other) {
+        if (other
+            == com.google.cloud.documentai.v1beta2.Document.EntityRelation.getDefaultInstance())
+          return this;
+        if (!other.getSubjectId().isEmpty()) {
+          subjectId_ = other.subjectId_;
+          bitField0_ |= 0x00000001;
+          onChanged();
         }
-        bitField0_ |= 0x00000004;
+        if (!other.getObjectId().isEmpty()) {
+          objectId_ = other.objectId_;
+          bitField0_ |= 0x00000002;
+          onChanged();
+        }
+        if (!other.getRelation().isEmpty()) {
+          relation_ = other.relation_;
+          bitField0_ |= 0x00000004;
+          onChanged();
+        }
+        this.mergeUnknownFields(other.getUnknownFields());
         onChanged();
         return this;
       }
+
+      @java.lang.Override
+      public final boolean isInitialized() {
+        return true;
+      }
+
+      @java.lang.Override
+      public Builder mergeFrom(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+        if (extensionRegistry == null) {
+          throw new java.lang.NullPointerException();
+        }
+        try {
+          boolean done = false;
+          while (!done) {
+            int tag = input.readTag();
+            switch (tag) {
+              case 0:
+                done = true;
+                break;
+              case 10:
+                {
+                  subjectId_ = input.readStringRequireUtf8();
+                  bitField0_ |= 0x00000001;
+                  break;
+                } // case 10
+              case 18:
+                {
+                  objectId_ = input.readStringRequireUtf8();
+                  bitField0_ |= 0x00000002;
+                  break;
+                } // case 18
+              case 26:
+                {
+                  relation_ = input.readStringRequireUtf8();
+                  bitField0_ |= 0x00000004;
+                  break;
+                } // case 26
+              default:
+                {
+                  if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                    done = true; // was an endgroup tag
+                  }
+                  break;
+                } // default:
+            } // switch (tag)
+          } // while (!done)
+        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          throw e.unwrapIOException();
+        } finally {
+          onChanged();
+        } // finally
+        return this;
+      }
+
+      private int bitField0_;
+
+      private java.lang.Object subjectId_ = "";
       /**
        *
        *
        * 
-       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for the page.
+       * Subject entity id.
        * 

        *
-       * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 3;
+       * string subject_id = 1;
+       *
+       * @return The subjectId.
        */
-      public Builder setLayout(
-          com.google.cloud.documentai.v1beta2.Document.Page.Layout.Builder builderForValue) {
-        if (layoutBuilder_ == null) {
-          layout_ = builderForValue.build();
+      public java.lang.String getSubjectId() {
+        java.lang.Object ref = subjectId_;
+        if (!(ref instanceof java.lang.String)) {
+          com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+          java.lang.String s = bs.toStringUtf8();
+          subjectId_ = s;
+          return s;
         } else {
-          layoutBuilder_.setMessage(builderForValue.build());
+          return (java.lang.String) ref;
         }
-        bitField0_ |= 0x00000004;
-        onChanged();
-        return this;
       }
       /**
        *
        *
        * 
-       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for the page.
+       * Subject entity id.
        * 

        *
-       * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 3;
+       * string subject_id = 1;
+       *
+       * @return The bytes for subjectId.
        */
-      public Builder mergeLayout(com.google.cloud.documentai.v1beta2.Document.Page.Layout value) {
-        if (layoutBuilder_ == null) {
-          if (((bitField0_ & 0x00000004) != 0)
-              && layout_ != null
-              && layout_
-                  != com.google.cloud.documentai.v1beta2.Document.Page.Layout
-                      .getDefaultInstance()) {
-            getLayoutBuilder().mergeFrom(value);
-          } else {
-            layout_ = value;
-          }
+      public com.google.protobuf.ByteString getSubjectIdBytes() {
+        java.lang.Object ref = subjectId_;
+        if (ref instanceof String) {
+          com.google.protobuf.ByteString b =
+              com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+          subjectId_ = b;
+          return b;
         } else {
-          layoutBuilder_.mergeFrom(value);
+          return (com.google.protobuf.ByteString) ref;
         }
-        bitField0_ |= 0x00000004;
-        onChanged();
-        return this;
       }
       /**
        *
        *
        * 
-       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for the page.
+       * Subject entity id.
        * 

        *
-       * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 3;
+       * string subject_id = 1;
+       *
+       * @param value The subjectId to set.
+       * @return This builder for chaining.
        */
-      public Builder clearLayout() {
-        bitField0_ = (bitField0_ & ~0x00000004);
-        layout_ = null;
-        if (layoutBuilder_ != null) {
-          layoutBuilder_.dispose();
-          layoutBuilder_ = null;
+      public Builder setSubjectId(java.lang.String value) {
+        if (value == null) {
+          throw new NullPointerException();
         }
+        subjectId_ = value;
+        bitField0_ |= 0x00000001;
         onChanged();
         return this;
       }
@@ -27915,1370 +52905,1828 @@ public Builder clearLayout() {
        *
        *
        * 
-       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for the page.
+       * Subject entity id.
        * 

        *
-       * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 3;
+       * string subject_id = 1;
+       *
+       * @return This builder for chaining.
        */
-      public com.google.cloud.documentai.v1beta2.Document.Page.Layout.Builder getLayoutBuilder() {
-        bitField0_ |= 0x00000004;
+      public Builder clearSubjectId() {
+        subjectId_ = getDefaultInstance().getSubjectId();
+        bitField0_ = (bitField0_ & ~0x00000001);
         onChanged();
-        return getLayoutFieldBuilder().getBuilder();
+        return this;
       }
       /**
        *
        *
        * 
-       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for the page.
+       * Subject entity id.
        * 

        *
-       * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 3;
-       */
-      public com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder
-          getLayoutOrBuilder() {
-        if (layoutBuilder_ != null) {
-          return layoutBuilder_.getMessageOrBuilder();
-        } else {
-          return layout_ == null
-              ? com.google.cloud.documentai.v1beta2.Document.Page.Layout.getDefaultInstance()
-              : layout_;
-        }
-      }
-      /**
-       *
-       *
-       * 
-       * [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for the page.
-       * 

+       * string subject_id = 1;
        *
-       * .google.cloud.documentai.v1beta2.Document.Page.Layout layout = 3;
+       * @param value The bytes for subjectId to set.
+       * @return This builder for chaining.
        */
-      private com.google.protobuf.SingleFieldBuilderV3<
-              com.google.cloud.documentai.v1beta2.Document.Page.Layout,
-              com.google.cloud.documentai.v1beta2.Document.Page.Layout.Builder,
-              com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder>
-          getLayoutFieldBuilder() {
-        if (layoutBuilder_ == null) {
-          layoutBuilder_ =
-              new com.google.protobuf.SingleFieldBuilderV3<
-                  com.google.cloud.documentai.v1beta2.Document.Page.Layout,
-                  com.google.cloud.documentai.v1beta2.Document.Page.Layout.Builder,
-                  com.google.cloud.documentai.v1beta2.Document.Page.LayoutOrBuilder>(
-                  getLayout(), getParentForChildren(), isClean());
-          layout_ = null;
-        }
-        return layoutBuilder_;
-      }
-
-      private java.util.List
-          detectedLanguages_ = java.util.Collections.emptyList();
-
-      private void ensureDetectedLanguagesIsMutable() {
-        if (!((bitField0_ & 0x00000008) != 0)) {
-          detectedLanguages_ =
-              new java.util.ArrayList<
-                  com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage>(
-                  detectedLanguages_);
-          bitField0_ |= 0x00000008;
+      public Builder setSubjectIdBytes(com.google.protobuf.ByteString value) {
+        if (value == null) {
+          throw new NullPointerException();
         }
+        checkByteStringIsUtf8(value);
+        subjectId_ = value;
+        bitField0_ |= 0x00000001;
+        onChanged();
+        return this;
       }
 
-      private com.google.protobuf.RepeatedFieldBuilderV3<
-              com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage,
-              com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder,
-              com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder>
-          detectedLanguagesBuilder_;
-
+      private java.lang.Object objectId_ = "";
       /**
        *
        *
        * 
-       * A list of detected languages together with confidence.
+       * Object entity id.
        * 

        *
-       * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
-       * 
-       */
-      public java.util.List
-          getDetectedLanguagesList() {
-        if (detectedLanguagesBuilder_ == null) {
-          return java.util.Collections.unmodifiableList(detectedLanguages_);
-        } else {
-          return detectedLanguagesBuilder_.getMessageList();
-        }
-      }
-      /**
-       *
-       *
-       * 
-       * A list of detected languages together with confidence.
-       * 

+       * string object_id = 2;
        *
-       * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
-       * 
+       * @return The objectId.
        */
-      public int getDetectedLanguagesCount() {
-        if (detectedLanguagesBuilder_ == null) {
-          return detectedLanguages_.size();
+      public java.lang.String getObjectId() {
+        java.lang.Object ref = objectId_;
+        if (!(ref instanceof java.lang.String)) {
+          com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+          java.lang.String s = bs.toStringUtf8();
+          objectId_ = s;
+          return s;
         } else {
-          return detectedLanguagesBuilder_.getCount();
+          return (java.lang.String) ref;
         }
       }
       /**
        *
        *
        * 
-       * A list of detected languages together with confidence.
+       * Object entity id.
        * 

        *
-       * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
-       * 
-       */
-      public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage
-          getDetectedLanguages(int index) {
-        if (detectedLanguagesBuilder_ == null) {
-          return detectedLanguages_.get(index);
-        } else {
-          return detectedLanguagesBuilder_.getMessage(index);
-        }
-      }
-      /**
-       *
-       *
-       * 
-       * A list of detected languages together with confidence.
-       * 

+       * string object_id = 2;
        *
-       * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
-       * 
+       * @return The bytes for objectId.
        */
-      public Builder setDetectedLanguages(
-          int index, com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value) {
-        if (detectedLanguagesBuilder_ == null) {
-          if (value == null) {
-            throw new NullPointerException();
-          }
-          ensureDetectedLanguagesIsMutable();
-          detectedLanguages_.set(index, value);
-          onChanged();
+      public com.google.protobuf.ByteString getObjectIdBytes() {
+        java.lang.Object ref = objectId_;
+        if (ref instanceof String) {
+          com.google.protobuf.ByteString b =
+              com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+          objectId_ = b;
+          return b;
         } else {
-          detectedLanguagesBuilder_.setMessage(index, value);
+          return (com.google.protobuf.ByteString) ref;
         }
-        return this;
       }
       /**
        *
        *
        * 
-       * A list of detected languages together with confidence.
+       * Object entity id.
        * 

        *
-       * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
-       * 
-       */
-      public Builder setDetectedLanguages(
-          int index,
-          com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
-              builderForValue) {
-        if (detectedLanguagesBuilder_ == null) {
-          ensureDetectedLanguagesIsMutable();
-          detectedLanguages_.set(index, builderForValue.build());
-          onChanged();
-        } else {
-          detectedLanguagesBuilder_.setMessage(index, builderForValue.build());
-        }
-        return this;
-      }
-      /**
-       *
-       *
-       * 
-       * A list of detected languages together with confidence.
-       * 

+       * string object_id = 2;
        *
-       * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
-       * 
+       * @param value The objectId to set.
+       * @return This builder for chaining.
        */
-      public Builder addDetectedLanguages(
-          com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value) {
-        if (detectedLanguagesBuilder_ == null) {
-          if (value == null) {
-            throw new NullPointerException();
-          }
-          ensureDetectedLanguagesIsMutable();
-          detectedLanguages_.add(value);
-          onChanged();
-        } else {
-          detectedLanguagesBuilder_.addMessage(value);
+      public Builder setObjectId(java.lang.String value) {
+        if (value == null) {
+          throw new NullPointerException();
         }
+        objectId_ = value;
+        bitField0_ |= 0x00000002;
+        onChanged();
         return this;
       }
       /**
        *
        *
        * 
-       * A list of detected languages together with confidence.
+       * Object entity id.
        * 

        *
-       * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
-       * 
+       * string object_id = 2;
+       *
+       * @return This builder for chaining.
        */
-      public Builder addDetectedLanguages(
-          int index, com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage value) {
-        if (detectedLanguagesBuilder_ == null) {
-          if (value == null) {
-            throw new NullPointerException();
-          }
-          ensureDetectedLanguagesIsMutable();
-          detectedLanguages_.add(index, value);
-          onChanged();
-        } else {
-          detectedLanguagesBuilder_.addMessage(index, value);
-        }
+      public Builder clearObjectId() {
+        objectId_ = getDefaultInstance().getObjectId();
+        bitField0_ = (bitField0_ & ~0x00000002);
+        onChanged();
         return this;
       }
       /**
        *
        *
        * 
-       * A list of detected languages together with confidence.
+       * Object entity id.
        * 

        *
-       * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
-       * 
+       * string object_id = 2;
+       *
+       * @param value The bytes for objectId to set.
+       * @return This builder for chaining.
        */
-      public Builder addDetectedLanguages(
-          com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
-              builderForValue) {
-        if (detectedLanguagesBuilder_ == null) {
-          ensureDetectedLanguagesIsMutable();
-          detectedLanguages_.add(builderForValue.build());
-          onChanged();
-        } else {
-          detectedLanguagesBuilder_.addMessage(builderForValue.build());
+      public Builder setObjectIdBytes(com.google.protobuf.ByteString value) {
+        if (value == null) {
+          throw new NullPointerException();
         }
+        checkByteStringIsUtf8(value);
+        objectId_ = value;
+        bitField0_ |= 0x00000002;
+        onChanged();
         return this;
       }
+
+      private java.lang.Object relation_ = "";
       /**
        *
        *
        * 
-       * A list of detected languages together with confidence.
+       * Relationship description.
        * 

        *
-       * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
-       * 
+       * string relation = 3;
+       *
+       * @return The relation.
        */
-      public Builder addDetectedLanguages(
-          int index,
-          com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
-              builderForValue) {
-        if (detectedLanguagesBuilder_ == null) {
-          ensureDetectedLanguagesIsMutable();
-          detectedLanguages_.add(index, builderForValue.build());
-          onChanged();
+      public java.lang.String getRelation() {
+        java.lang.Object ref = relation_;
+        if (!(ref instanceof java.lang.String)) {
+          com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+          java.lang.String s = bs.toStringUtf8();
+          relation_ = s;
+          return s;
         } else {
-          detectedLanguagesBuilder_.addMessage(index, builderForValue.build());
+          return (java.lang.String) ref;
         }
-        return this;
       }
       /**
        *
        *
        * 
-       * A list of detected languages together with confidence.
+       * Relationship description.
        * 

        *
-       * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
-       * 
+       * string relation = 3;
+       *
+       * @return The bytes for relation.
        */
-      public Builder addAllDetectedLanguages(
-          java.lang.Iterable<
-                  ? extends com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage>
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-        if (detectedLanguagesBuilder_ == null) {
-          ensureDetectedLanguagesIsMutable();
-          com.google.protobuf.AbstractMessageLite.Builder.addAll(values, detectedLanguages_);
-          onChanged();
+      public com.google.protobuf.ByteString getRelationBytes() {
+        java.lang.Object ref = relation_;
+        if (ref instanceof String) {
+          com.google.protobuf.ByteString b =
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+          relation_ = b;
+          return b;
         } else {
-          detectedLanguagesBuilder_.addAllMessages(values);
+          return (com.google.protobuf.ByteString) ref;
         }
-        return this;
       }
       /**
        *
        *
        * 
-       * A list of detected languages together with confidence.
+       * Relationship description.
        * 

        *
-       * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
-       * 
+       * string relation = 3;
+       *
+       * @param value The relation to set.
+       * @return This builder for chaining.
        */
-      public Builder clearDetectedLanguages() {
-        if (detectedLanguagesBuilder_ == null) {
-          detectedLanguages_ = java.util.Collections.emptyList();
-          bitField0_ = (bitField0_ & ~0x00000008);
-          onChanged();
-        } else {
-          detectedLanguagesBuilder_.clear();
+      public Builder setRelation(java.lang.String value) {
+        if (value == null) {
+          throw new NullPointerException();
         }
+        relation_ = value;
+        bitField0_ |= 0x00000004;
+        onChanged();
         return this;
       }
       /**
        *
        *
        * 
-       * A list of detected languages together with confidence.
+       * Relationship description.
        * 

        *
-       * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
-       * 
+       * string relation = 3;
+       *
+       * @return This builder for chaining.
        */
-      public Builder removeDetectedLanguages(int index) {
-        if (detectedLanguagesBuilder_ == null) {
-          ensureDetectedLanguagesIsMutable();
-          detectedLanguages_.remove(index);
-          onChanged();
-        } else {
-          detectedLanguagesBuilder_.remove(index);
-        }
+      public Builder clearRelation() {
+        relation_ = getDefaultInstance().getRelation();
+        bitField0_ = (bitField0_ & ~0x00000004);
+        onChanged();
         return this;
       }
       /**
        *
        *
        * 
-       * A list of detected languages together with confidence.
+       * Relationship description.
        * 

        *
-       * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
-       * 
+       * string relation = 3;
+       *
+       * @param value The bytes for relation to set.
+       * @return This builder for chaining.
        */
-      public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage.Builder
-          getDetectedLanguagesBuilder(int index) {
-        return getDetectedLanguagesFieldBuilder().getBuilder(index);
+      public Builder setRelationBytes(com.google.protobuf.ByteString value) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        checkByteStringIsUtf8(value);
+        relation_ = value;
+        bitField0_ |= 0x00000004;
+        onChanged();
+        return this;
+      }
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+      @java.lang.Override
+      public final Builder setUnknownFields(
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+        return super.setUnknownFields(unknownFields);
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+      @java.lang.Override
+      public final Builder mergeUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.mergeUnknownFields(unknownFields);
       }
+
+      // @@protoc_insertion_point(builder_scope:google.cloud.documentai.v1beta2.Document.EntityRelation)
+    }
+
+    // @@protoc_insertion_point(class_scope:google.cloud.documentai.v1beta2.Document.EntityRelation)
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+        DEFAULT_INSTANCE;
+
+    static {
+      DEFAULT_INSTANCE = new com.google.cloud.documentai.v1beta2.Document.EntityRelation();
+    }
+
+    public static com.google.cloud.documentai.v1beta2.Document.EntityRelation getDefaultInstance() {
+      return DEFAULT_INSTANCE;
+    }
+
+    private static final com.google.protobuf.Parser PARSER =
+        new com.google.protobuf.AbstractParser() {
+          @java.lang.Override
+          public EntityRelation parsePartialFrom(
+              com.google.protobuf.CodedInputStream input,
+              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+              throws com.google.protobuf.InvalidProtocolBufferException {
+            Builder builder = newBuilder();
+            try {
+              builder.mergeFrom(input, extensionRegistry);
+            } catch (com.google.protobuf.InvalidProtocolBufferException e) {
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+            } catch (com.google.protobuf.UninitializedMessageException e) {
+              throw e.asInvalidProtocolBufferException()
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+              throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                  .setUnfinishedMessage(builder.buildPartial());
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+            return builder.buildPartial();
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+    public static com.google.protobuf.Parser parser() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Parser getParserForType() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta2.Document.EntityRelation getDefaultInstanceForType() {
+      return DEFAULT_INSTANCE;
+    }
+  }
+
+  public interface TextAnchorOrBuilder
+      extends
+      // @@protoc_insertion_point(interface_extends:google.cloud.documentai.v1beta2.Document.TextAnchor)
+      com.google.protobuf.MessageOrBuilder {
+
+    /**
+     *
+     *
+     * 
+     * The text segments from the
+     * [Document.text][google.cloud.documentai.v1beta2.Document.text].
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta2.Document.TextAnchor.TextSegment text_segments = 1;
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+        getTextSegmentsList();
+    /**
+     *
+     *
+     * 
+     * The text segments from the
+     * [Document.text][google.cloud.documentai.v1beta2.Document.text].
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+     * 
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+    /**
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+     *
+     * 
+     * The text segments from the
+     * [Document.text][google.cloud.documentai.v1beta2.Document.text].
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+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta2.Document.TextAnchor.TextSegment text_segments = 1;
+     * 
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+    /**
+     *
+     *
+     * 
+     * The text segments from the
+     * [Document.text][google.cloud.documentai.v1beta2.Document.text].
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta2.Document.TextAnchor.TextSegment text_segments = 1;
+     * 
+     */
+    java.util.List<
+            ? extends com.google.cloud.documentai.v1beta2.Document.TextAnchor.TextSegmentOrBuilder>
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+    /**
+     *
+     *
+     * 
+     * The text segments from the
+     * [Document.text][google.cloud.documentai.v1beta2.Document.text].
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+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta2.Document.TextAnchor.TextSegment text_segments = 1;
+     * 
+     */
+    com.google.cloud.documentai.v1beta2.Document.TextAnchor.TextSegmentOrBuilder
+        getTextSegmentsOrBuilder(int index);
+
+    /**
+     *
+     *
+     * 
+     * Contains the content of the text span so that users do
+     * not have to look it up in the text_segments.  It is always
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+     * 

+     *
+     * string content = 2;
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+     */
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+    /**
+     *
+     *
+     * 
+     * Contains the content of the text span so that users do
+     * not have to look it up in the text_segments.  It is always
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+     * 

+     *
+     * string content = 2;
+     *
+     * @return The bytes for content.
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+  /**
+   *
+   *
+   * 
+   * Text reference indexing into the
+   * [Document.text][google.cloud.documentai.v1beta2.Document.text].
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+   *
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+      // @@protoc_insertion_point(message_implements:google.cloud.documentai.v1beta2.Document.TextAnchor)
+      TextAnchorOrBuilder {
+    private static final long serialVersionUID = 0L;
+    // Use TextAnchor.newBuilder() to construct.
+    private TextAnchor(com.google.protobuf.GeneratedMessageV3.Builder builder) {
+      super(builder);
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+
+    private TextAnchor() {
+      textSegments_ = java.util.Collections.emptyList();
+      content_ = "";
+    }
+
+    @java.lang.Override
+    @SuppressWarnings({"unused"})
+    protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+      return new TextAnchor();
+    }
+
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.documentai.v1beta2.DocumentProto
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+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.documentai.v1beta2.DocumentProto
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+
+    public interface TextSegmentOrBuilder
+        extends
+        // @@protoc_insertion_point(interface_extends:google.cloud.documentai.v1beta2.Document.TextAnchor.TextSegment)
+        com.google.protobuf.MessageOrBuilder {
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       /**
        *
        *
        * 
-       * A list of detected languages together with confidence.
+       * [TextSegment][google.cloud.documentai.v1beta2.Document.TextAnchor.TextSegment]
+       * start UTF-8 char index in the
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        *
-       * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
-       * 
+       * int64 start_index = 1;
+       *
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        */
-      public com.google.cloud.documentai.v1beta2.Document.Page.DetectedLanguageOrBuilder
-          getDetectedLanguagesOrBuilder(int index) {
-        if (detectedLanguagesBuilder_ == null) {
-          return detectedLanguages_.get(index);
-        } else {
-          return detectedLanguagesBuilder_.getMessageOrBuilder(index);
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-      }
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+
       /**
        *
        *
        * 
-       * A list of detected languages together with confidence.
+       * [TextSegment][google.cloud.documentai.v1beta2.Document.TextAnchor.TextSegment]
+       * half open end UTF-8 char index in the
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        * 

        *
-       * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
-       * 
+       * int64 end_index = 2;
+       *
+       * @return The endIndex.
        */
-      public java.util.List<
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-          getDetectedLanguagesOrBuilderList() {
-        if (detectedLanguagesBuilder_ != null) {
-          return detectedLanguagesBuilder_.getMessageOrBuilderList();
-        } else {
-          return java.util.Collections.unmodifiableList(detectedLanguages_);
-        }
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+    }
+    /**
+     *
+     *
+     * 
+     * A text segment in the
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+     * another document shard for large sharded documents. See
+     * [ShardInfo.text_offset][google.cloud.documentai.v1beta2.Document.ShardInfo.text_offset]
+     * 

+     *
+     * Protobuf type {@code google.cloud.documentai.v1beta2.Document.TextAnchor.TextSegment}
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+        // @@protoc_insertion_point(message_implements:google.cloud.documentai.v1beta2.Document.TextAnchor.TextSegment)
+        TextSegmentOrBuilder {
+      private static final long serialVersionUID = 0L;
+      // Use TextSegment.newBuilder() to construct.
+      private TextSegment(com.google.protobuf.GeneratedMessageV3.Builder builder) {
+        super(builder);
       }
+
+      private TextSegment() {}
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+      @java.lang.Override
+      @SuppressWarnings({"unused"})
+      protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+        return new TextSegment();
+      }
+
+      public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+        return com.google.cloud.documentai.v1beta2.DocumentProto
+            .internal_static_google_cloud_documentai_v1beta2_Document_TextAnchor_TextSegment_descriptor;
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+      @java.lang.Override
+      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
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       /**
        *
        *
        * 
-       * A list of detected languages together with confidence.
+       * [TextSegment][google.cloud.documentai.v1beta2.Document.TextAnchor.TextSegment]
+       * start UTF-8 char index in the
+       * [Document.text][google.cloud.documentai.v1beta2.Document.text].
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        *
-       * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
-       * 
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+       *
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        */
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+      public static final int END_INDEX_FIELD_NUMBER = 2;
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       /**
        *
        *
        * 
-       * A list of detected languages together with confidence.
+       * [TextSegment][google.cloud.documentai.v1beta2.Document.TextAnchor.TextSegment]
+       * half open end UTF-8 char index in the
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        * 

        *
-       * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.DetectedLanguage detected_languages = 4;
-       * 
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+        if (endIndex_ != 0L) {
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+      @java.lang.Override
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+        memoizedSize = size;
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+      @java.lang.Override
+      public boolean equals(final java.lang.Object obj) {
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+        if (getStartIndex() != other.getStartIndex()) return false;
+        if (getEndIndex() != other.getEndIndex()) return false;
+        if (!getUnknownFields().equals(other.getUnknownFields())) return false;
+        return true;
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+      @java.lang.Override
+      public int hashCode() {
+        if (memoizedHashCode != 0) {
+          return memoizedHashCode;
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+        int hash = 41;
+        hash = (19 * hash) + getDescriptor().hashCode();
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+        hash = (53 * hash) + com.google.protobuf.Internal.hashLong(getStartIndex());
+        hash = (37 * hash) + END_INDEX_FIELD_NUMBER;
+        hash = (53 * hash) + com.google.protobuf.Internal.hashLong(getEndIndex());
+        hash = (29 * hash) + getUnknownFields().hashCode();
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+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
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+      public static com.google.cloud.documentai.v1beta2.Document.TextAnchor.TextSegment parseFrom(
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+      public static com.google.cloud.documentai.v1beta2.Document.TextAnchor.TextSegment parseFrom(
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-          detectedLanguages_ = null;
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+      @java.lang.Override
+      public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+        return super.clearField(field);
       }
-      /**
-       *
-       *
-       * 
-       * A list of visually detected text paragraphs on the page.
-       * A collection of lines that a human would perceive as a paragraph.
-       * 

-       *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.Paragraph paragraphs = 6;
-       * 
-       */
-      public Builder clearParagraphs() {
-        if (paragraphsBuilder_ == null) {
-          paragraphs_ = java.util.Collections.emptyList();
-          bitField0_ = (bitField0_ & ~0x00000020);
-          onChanged();
-        } else {
-          paragraphsBuilder_.clear();
-        }
-        return this;
+
+      @java.lang.Override
+      public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+        return super.clearOneof(oneof);
       }
-      /**
-       *
-       *
-       * 
-       * A list of visually detected text paragraphs on the page.
-       * A collection of lines that a human would perceive as a paragraph.
-       * 

-       *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.Paragraph paragraphs = 6;
-       * 
-       */
-      public Builder removeParagraphs(int index) {
-        if (paragraphsBuilder_ == null) {
-          ensureParagraphsIsMutable();
-          paragraphs_.remove(index);
-          onChanged();
-        } else {
-          paragraphsBuilder_.remove(index);
-        }
-        return this;
+
+      @java.lang.Override
+      public Builder setRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field,
+          int index,
+          java.lang.Object value) {
+        return super.setRepeatedField(field, index, value);
       }
-      /**
-       *
-       *
-       * 
-       * A list of visually detected text paragraphs on the page.
-       * A collection of lines that a human would perceive as a paragraph.
-       * 

-       *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.Paragraph paragraphs = 6;
-       * 
-       */
-      public com.google.cloud.documentai.v1beta2.Document.Page.Paragraph.Builder
-          getParagraphsBuilder(int index) {
-        return getParagraphsFieldBuilder().getBuilder(index);
+
+      @java.lang.Override
+      public Builder addRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+        return super.addRepeatedField(field, value);
       }
-      /**
-       *
-       *
-       * 
-       * A list of visually detected text paragraphs on the page.
-       * A collection of lines that a human would perceive as a paragraph.
-       * 

-       *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.Paragraph paragraphs = 6;
-       * 
-       */
-      public com.google.cloud.documentai.v1beta2.Document.Page.ParagraphOrBuilder
-          getParagraphsOrBuilder(int index) {
-        if (paragraphsBuilder_ == null) {
-          return paragraphs_.get(index);
+
+      @java.lang.Override
+      public Builder mergeFrom(com.google.protobuf.Message other) {
+        if (other instanceof com.google.cloud.documentai.v1beta2.Document.TextAnchor) {
+          return mergeFrom((com.google.cloud.documentai.v1beta2.Document.TextAnchor) other);
         } else {
-          return paragraphsBuilder_.getMessageOrBuilder(index);
+          super.mergeFrom(other);
+          return this;
         }
       }
-      /**
-       *
-       *
-       * 
-       * A list of visually detected text paragraphs on the page.
-       * A collection of lines that a human would perceive as a paragraph.
-       * 

-       *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.Paragraph paragraphs = 6;
-       * 
-       */
-      public java.util.List<
-              ? extends com.google.cloud.documentai.v1beta2.Document.Page.ParagraphOrBuilder>
-          getParagraphsOrBuilderList() {
-        if (paragraphsBuilder_ != null) {
-          return paragraphsBuilder_.getMessageOrBuilderList();
+
+      public Builder mergeFrom(com.google.cloud.documentai.v1beta2.Document.TextAnchor other) {
+        if (other == com.google.cloud.documentai.v1beta2.Document.TextAnchor.getDefaultInstance())
+          return this;
+        if (textSegmentsBuilder_ == null) {
+          if (!other.textSegments_.isEmpty()) {
+            if (textSegments_.isEmpty()) {
+              textSegments_ = other.textSegments_;
+              bitField0_ = (bitField0_ & ~0x00000001);
+            } else {
+              ensureTextSegmentsIsMutable();
+              textSegments_.addAll(other.textSegments_);
+            }
+            onChanged();
+          }
         } else {
-          return java.util.Collections.unmodifiableList(paragraphs_);
+          if (!other.textSegments_.isEmpty()) {
+            if (textSegmentsBuilder_.isEmpty()) {
+              textSegmentsBuilder_.dispose();
+              textSegmentsBuilder_ = null;
+              textSegments_ = other.textSegments_;
+              bitField0_ = (bitField0_ & ~0x00000001);
+              textSegmentsBuilder_ =
+                  com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders
+                      ? getTextSegmentsFieldBuilder()
+                      : null;
+            } else {
+              textSegmentsBuilder_.addAllMessages(other.textSegments_);
+            }
+          }
         }
+        if (!other.getContent().isEmpty()) {
+          content_ = other.content_;
+          bitField0_ |= 0x00000002;
+          onChanged();
+        }
+        this.mergeUnknownFields(other.getUnknownFields());
+        onChanged();
+        return this;
       }
-      /**
-       *
-       *
-       * 
-       * A list of visually detected text paragraphs on the page.
-       * A collection of lines that a human would perceive as a paragraph.
-       * 

-       *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.Paragraph paragraphs = 6;
-       * 
-       */
-      public com.google.cloud.documentai.v1beta2.Document.Page.Paragraph.Builder
-          addParagraphsBuilder() {
-        return getParagraphsFieldBuilder()
-            .addBuilder(
-                com.google.cloud.documentai.v1beta2.Document.Page.Paragraph.getDefaultInstance());
-      }
-      /**
-       *
-       *
-       * 
-       * A list of visually detected text paragraphs on the page.
-       * A collection of lines that a human would perceive as a paragraph.
-       * 

-       *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.Paragraph paragraphs = 6;
-       * 
-       */
-      public com.google.cloud.documentai.v1beta2.Document.Page.Paragraph.Builder
-          addParagraphsBuilder(int index) {
-        return getParagraphsFieldBuilder()
-            .addBuilder(
-                index,
-                com.google.cloud.documentai.v1beta2.Document.Page.Paragraph.getDefaultInstance());
-      }
-      /**
-       *
-       *
-       * 
-       * A list of visually detected text paragraphs on the page.
-       * A collection of lines that a human would perceive as a paragraph.
-       * 

-       *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.Paragraph paragraphs = 6;
-       * 
-       */
-      public java.util.List
-          getParagraphsBuilderList() {
-        return getParagraphsFieldBuilder().getBuilderList();
+
+      @java.lang.Override
+      public final boolean isInitialized() {
+        return true;
       }
 
-      private com.google.protobuf.RepeatedFieldBuilderV3<
-              com.google.cloud.documentai.v1beta2.Document.Page.Paragraph,
-              com.google.cloud.documentai.v1beta2.Document.Page.Paragraph.Builder,
-              com.google.cloud.documentai.v1beta2.Document.Page.ParagraphOrBuilder>
-          getParagraphsFieldBuilder() {
-        if (paragraphsBuilder_ == null) {
-          paragraphsBuilder_ =
-              new com.google.protobuf.RepeatedFieldBuilderV3<
-                  com.google.cloud.documentai.v1beta2.Document.Page.Paragraph,
-                  com.google.cloud.documentai.v1beta2.Document.Page.Paragraph.Builder,
-                  com.google.cloud.documentai.v1beta2.Document.Page.ParagraphOrBuilder>(
-                  paragraphs_, ((bitField0_ & 0x00000020) != 0), getParentForChildren(), isClean());
-          paragraphs_ = null;
+      @java.lang.Override
+      public Builder mergeFrom(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+        if (extensionRegistry == null) {
+          throw new java.lang.NullPointerException();
         }
-        return paragraphsBuilder_;
+        try {
+          boolean done = false;
+          while (!done) {
+            int tag = input.readTag();
+            switch (tag) {
+              case 0:
+                done = true;
+                break;
+              case 10:
+                {
+                  com.google.cloud.documentai.v1beta2.Document.TextAnchor.TextSegment m =
+                      input.readMessage(
+                          com.google.cloud.documentai.v1beta2.Document.TextAnchor.TextSegment
+                              .parser(),
+                          extensionRegistry);
+                  if (textSegmentsBuilder_ == null) {
+                    ensureTextSegmentsIsMutable();
+                    textSegments_.add(m);
+                  } else {
+                    textSegmentsBuilder_.addMessage(m);
+                  }
+                  break;
+                } // case 10
+              case 18:
+                {
+                  content_ = input.readStringRequireUtf8();
+                  bitField0_ |= 0x00000002;
+                  break;
+                } // case 18
+              default:
+                {
+                  if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                    done = true; // was an endgroup tag
+                  }
+                  break;
+                } // default:
+            } // switch (tag)
+          } // while (!done)
+        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          throw e.unwrapIOException();
+        } finally {
+          onChanged();
+        } // finally
+        return this;
       }
 
-      private java.util.List lines_ =
-          java.util.Collections.emptyList();
+      private int bitField0_;
 
-      private void ensureLinesIsMutable() {
-        if (!((bitField0_ & 0x00000040) != 0)) {
-          lines_ =
-              new java.util.ArrayList(
-                  lines_);
-          bitField0_ |= 0x00000040;
+      private java.util.List
+          textSegments_ = java.util.Collections.emptyList();
+
+      private void ensureTextSegmentsIsMutable() {
+        if (!((bitField0_ & 0x00000001) != 0)) {
+          textSegments_ =
+              new java.util.ArrayList<
+                  com.google.cloud.documentai.v1beta2.Document.TextAnchor.TextSegment>(
+                  textSegments_);
+          bitField0_ |= 0x00000001;
         }
       }
 
       private com.google.protobuf.RepeatedFieldBuilderV3<
-              com.google.cloud.documentai.v1beta2.Document.Page.Line,
-              com.google.cloud.documentai.v1beta2.Document.Page.Line.Builder,
-              com.google.cloud.documentai.v1beta2.Document.Page.LineOrBuilder>
-          linesBuilder_;
+              com.google.cloud.documentai.v1beta2.Document.TextAnchor.TextSegment,
+              com.google.cloud.documentai.v1beta2.Document.TextAnchor.TextSegment.Builder,
+              com.google.cloud.documentai.v1beta2.Document.TextAnchor.TextSegmentOrBuilder>
+          textSegmentsBuilder_;
 
       /**
        *
        *
        * 
-       * A list of visually detected text lines on the page.
-       * A collection of tokens that a human would perceive as a line.
+       * The text segments from the
+       * [Document.text][google.cloud.documentai.v1beta2.Document.text].
        * 

        *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.Line lines = 7;
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.TextAnchor.TextSegment text_segments = 1;
+       * 
        */
-      public java.util.List getLinesList() {
-        if (linesBuilder_ == null) {
-          return java.util.Collections.unmodifiableList(lines_);
+      public java.util.List
+          getTextSegmentsList() {
+        if (textSegmentsBuilder_ == null) {
+          return java.util.Collections.unmodifiableList(textSegments_);
         } else {
-          return linesBuilder_.getMessageList();
+          return textSegmentsBuilder_.getMessageList();
         }
       }
       /**
        *
        *
        * 
-       * A list of visually detected text lines on the page.
-       * A collection of tokens that a human would perceive as a line.
+       * The text segments from the
+       * [Document.text][google.cloud.documentai.v1beta2.Document.text].
        * 

        *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.Line lines = 7;
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.TextAnchor.TextSegment text_segments = 1;
+       * 
        */
-      public int getLinesCount() {
-        if (linesBuilder_ == null) {
-          return lines_.size();
+      public int getTextSegmentsCount() {
+        if (textSegmentsBuilder_ == null) {
+          return textSegments_.size();
         } else {
-          return linesBuilder_.getCount();
+          return textSegmentsBuilder_.getCount();
         }
       }
       /**
        *
        *
        * 
-       * A list of visually detected text lines on the page.
-       * A collection of tokens that a human would perceive as a line.
+       * The text segments from the
+       * [Document.text][google.cloud.documentai.v1beta2.Document.text].
        * 

        *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.Line lines = 7;
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.TextAnchor.TextSegment text_segments = 1;
+       * 
        */
-      public com.google.cloud.documentai.v1beta2.Document.Page.Line getLines(int index) {
-        if (linesBuilder_ == null) {
-          return lines_.get(index);
+      public com.google.cloud.documentai.v1beta2.Document.TextAnchor.TextSegment getTextSegments(
+          int index) {
+        if (textSegmentsBuilder_ == null) {
+          return textSegments_.get(index);
         } else {
-          return linesBuilder_.getMessage(index);
+          return textSegmentsBuilder_.getMessage(index);
         }
       }
       /**
        *
        *
        * 
-       * A list of visually detected text lines on the page.
-       * A collection of tokens that a human would perceive as a line.
+       * The text segments from the
+       * [Document.text][google.cloud.documentai.v1beta2.Document.text].
        * 

        *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.Line lines = 7;
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.TextAnchor.TextSegment text_segments = 1;
+       * 
        */
-      public Builder setLines(
-          int index, com.google.cloud.documentai.v1beta2.Document.Page.Line value) {
-        if (linesBuilder_ == null) {
+      public Builder setTextSegments(
+          int index, com.google.cloud.documentai.v1beta2.Document.TextAnchor.TextSegment value) {
+        if (textSegmentsBuilder_ == null) {
           if (value == null) {
             throw new NullPointerException();
           }
-          ensureLinesIsMutable();
-          lines_.set(index, value);
+          ensureTextSegmentsIsMutable();
+          textSegments_.set(index, value);
           onChanged();
         } else {
-          linesBuilder_.setMessage(index, value);
+          textSegmentsBuilder_.setMessage(index, value);
         }
         return this;
       }
@@ -29286,21 +54734,24 @@ public Builder setLines(
        *
        *
        * 
-       * A list of visually detected text lines on the page.
-       * A collection of tokens that a human would perceive as a line.
+       * The text segments from the
+       * [Document.text][google.cloud.documentai.v1beta2.Document.text].
        * 

        *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.Line lines = 7;
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.TextAnchor.TextSegment text_segments = 1;
+       * 
        */
-      public Builder setLines(
+      public Builder setTextSegments(
           int index,
-          com.google.cloud.documentai.v1beta2.Document.Page.Line.Builder builderForValue) {
-        if (linesBuilder_ == null) {
-          ensureLinesIsMutable();
-          lines_.set(index, builderForValue.build());
+          com.google.cloud.documentai.v1beta2.Document.TextAnchor.TextSegment.Builder
+              builderForValue) {
+        if (textSegmentsBuilder_ == null) {
+          ensureTextSegmentsIsMutable();
+          textSegments_.set(index, builderForValue.build());
           onChanged();
         } else {
-          linesBuilder_.setMessage(index, builderForValue.build());
+          textSegmentsBuilder_.setMessage(index, builderForValue.build());
         }
         return this;
       }
@@ -29308,22 +54759,25 @@ public Builder setLines(
        *
        *
        * 
-       * A list of visually detected text lines on the page.
-       * A collection of tokens that a human would perceive as a line.
+       * The text segments from the
+       * [Document.text][google.cloud.documentai.v1beta2.Document.text].
        * 

        *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.Line lines = 7;
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.TextAnchor.TextSegment text_segments = 1;
+       * 
        */
-      public Builder addLines(com.google.cloud.documentai.v1beta2.Document.Page.Line value) {
-        if (linesBuilder_ == null) {
+      public Builder addTextSegments(
+          com.google.cloud.documentai.v1beta2.Document.TextAnchor.TextSegment value) {
+        if (textSegmentsBuilder_ == null) {
           if (value == null) {
             throw new NullPointerException();
           }
-          ensureLinesIsMutable();
-          lines_.add(value);
+          ensureTextSegmentsIsMutable();
+          textSegments_.add(value);
           onChanged();
         } else {
-          linesBuilder_.addMessage(value);
+          textSegmentsBuilder_.addMessage(value);
         }
         return this;
       }
@@ -29331,128 +54785,25 @@ public Builder addLines(com.google.cloud.documentai.v1beta2.Document.Page.Line v
        *
        *
        * 
-       * A list of visually detected text lines on the page.
-       * A collection of tokens that a human would perceive as a line.
+       * The text segments from the
+       * [Document.text][google.cloud.documentai.v1beta2.Document.text].
        * 

        *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.Line lines = 7;
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.TextAnchor.TextSegment text_segments = 1;
+       * 
        */
-      public Builder addLines(
-          int index, com.google.cloud.documentai.v1beta2.Document.Page.Line value) {
-        if (linesBuilder_ == null) {
+      public Builder addTextSegments(
+          int index, com.google.cloud.documentai.v1beta2.Document.TextAnchor.TextSegment value) {
+        if (textSegmentsBuilder_ == null) {
           if (value == null) {
             throw new NullPointerException();
           }
-          ensureLinesIsMutable();
-          lines_.add(index, value);
-          onChanged();
-        } else {
-          linesBuilder_.addMessage(index, value);
-        }
-        return this;
-      }
-      /**
-       *
-       *
-       * 
-       * A list of visually detected text lines on the page.
-       * A collection of tokens that a human would perceive as a line.
-       * 

-       *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.Line lines = 7;
-       */
-      public Builder addLines(
-          com.google.cloud.documentai.v1beta2.Document.Page.Line.Builder builderForValue) {
-        if (linesBuilder_ == null) {
-          ensureLinesIsMutable();
-          lines_.add(builderForValue.build());
-          onChanged();
-        } else {
-          linesBuilder_.addMessage(builderForValue.build());
-        }
-        return this;
-      }
-      /**
-       *
-       *
-       * 
-       * A list of visually detected text lines on the page.
-       * A collection of tokens that a human would perceive as a line.
-       * 

-       *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.Line lines = 7;
-       */
-      public Builder addLines(
-          int index,
-          com.google.cloud.documentai.v1beta2.Document.Page.Line.Builder builderForValue) {
-        if (linesBuilder_ == null) {
-          ensureLinesIsMutable();
-          lines_.add(index, builderForValue.build());
-          onChanged();
-        } else {
-          linesBuilder_.addMessage(index, builderForValue.build());
-        }
-        return this;
-      }
-      /**
-       *
-       *
-       * 
-       * A list of visually detected text lines on the page.
-       * A collection of tokens that a human would perceive as a line.
-       * 

-       *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.Line lines = 7;
-       */
-      public Builder addAllLines(
-          java.lang.Iterable
-              values) {
-        if (linesBuilder_ == null) {
-          ensureLinesIsMutable();
-          com.google.protobuf.AbstractMessageLite.Builder.addAll(values, lines_);
-          onChanged();
-        } else {
-          linesBuilder_.addAllMessages(values);
-        }
-        return this;
-      }
-      /**
-       *
-       *
-       * 
-       * A list of visually detected text lines on the page.
-       * A collection of tokens that a human would perceive as a line.
-       * 

-       *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.Line lines = 7;
-       */
-      public Builder clearLines() {
-        if (linesBuilder_ == null) {
-          lines_ = java.util.Collections.emptyList();
-          bitField0_ = (bitField0_ & ~0x00000040);
-          onChanged();
-        } else {
-          linesBuilder_.clear();
-        }
-        return this;
-      }
-      /**
-       *
-       *
-       * 
-       * A list of visually detected text lines on the page.
-       * A collection of tokens that a human would perceive as a line.
-       * 

-       *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.Line lines = 7;
-       */
-      public Builder removeLines(int index) {
-        if (linesBuilder_ == null) {
-          ensureLinesIsMutable();
-          lines_.remove(index);
+          ensureTextSegmentsIsMutable();
+          textSegments_.add(index, value);
           onChanged();
         } else {
-          linesBuilder_.remove(index);
+          textSegmentsBuilder_.addMessage(index, value);
         }
         return this;
       }
@@ -29460,203 +54811,95 @@ public Builder removeLines(int index) {
        *
        *
        * 
-       * A list of visually detected text lines on the page.
-       * A collection of tokens that a human would perceive as a line.
-       * 

-       *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.Line lines = 7;
-       */
-      public com.google.cloud.documentai.v1beta2.Document.Page.Line.Builder getLinesBuilder(
-          int index) {
-        return getLinesFieldBuilder().getBuilder(index);
-      }
-      /**
-       *
-       *
-       * 
-       * A list of visually detected text lines on the page.
-       * A collection of tokens that a human would perceive as a line.
-       * 

-       *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.Line lines = 7;
-       */
-      public com.google.cloud.documentai.v1beta2.Document.Page.LineOrBuilder getLinesOrBuilder(
-          int index) {
-        if (linesBuilder_ == null) {
-          return lines_.get(index);
-        } else {
-          return linesBuilder_.getMessageOrBuilder(index);
-        }
-      }
-      /**
-       *
-       *
-       * 
-       * A list of visually detected text lines on the page.
-       * A collection of tokens that a human would perceive as a line.
-       * 

-       *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.Line lines = 7;
-       */
-      public java.util.List<
-              ? extends com.google.cloud.documentai.v1beta2.Document.Page.LineOrBuilder>
-          getLinesOrBuilderList() {
-        if (linesBuilder_ != null) {
-          return linesBuilder_.getMessageOrBuilderList();
-        } else {
-          return java.util.Collections.unmodifiableList(lines_);
-        }
-      }
-      /**
-       *
-       *
-       * 
-       * A list of visually detected text lines on the page.
-       * A collection of tokens that a human would perceive as a line.
-       * 

-       *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.Line lines = 7;
-       */
-      public com.google.cloud.documentai.v1beta2.Document.Page.Line.Builder addLinesBuilder() {
-        return getLinesFieldBuilder()
-            .addBuilder(
-                com.google.cloud.documentai.v1beta2.Document.Page.Line.getDefaultInstance());
-      }
-      /**
-       *
-       *
-       * 
-       * A list of visually detected text lines on the page.
-       * A collection of tokens that a human would perceive as a line.
-       * 

-       *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.Line lines = 7;
-       */
-      public com.google.cloud.documentai.v1beta2.Document.Page.Line.Builder addLinesBuilder(
-          int index) {
-        return getLinesFieldBuilder()
-            .addBuilder(
-                index, com.google.cloud.documentai.v1beta2.Document.Page.Line.getDefaultInstance());
-      }
-      /**
-       *
-       *
-       * 
-       * A list of visually detected text lines on the page.
-       * A collection of tokens that a human would perceive as a line.
-       * 

-       *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.Line lines = 7;
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-      public java.util.List
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-        return getLinesFieldBuilder().getBuilderList();
-      }
-
-      private com.google.protobuf.RepeatedFieldBuilderV3<
-              com.google.cloud.documentai.v1beta2.Document.Page.Line,
-              com.google.cloud.documentai.v1beta2.Document.Page.Line.Builder,
-              com.google.cloud.documentai.v1beta2.Document.Page.LineOrBuilder>
-          getLinesFieldBuilder() {
-        if (linesBuilder_ == null) {
-          linesBuilder_ =
-              new com.google.protobuf.RepeatedFieldBuilderV3<
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-                  com.google.cloud.documentai.v1beta2.Document.Page.Line.Builder,
-                  com.google.cloud.documentai.v1beta2.Document.Page.LineOrBuilder>(
-                  lines_, ((bitField0_ & 0x00000040) != 0), getParentForChildren(), isClean());
-          lines_ = null;
-        }
-        return linesBuilder_;
-      }
-
-      private java.util.List tokens_ =
-          java.util.Collections.emptyList();
-
-      private void ensureTokensIsMutable() {
-        if (!((bitField0_ & 0x00000080) != 0)) {
-          tokens_ =
-              new java.util.ArrayList(
-                  tokens_);
-          bitField0_ |= 0x00000080;
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-
-      private com.google.protobuf.RepeatedFieldBuilderV3<
-              com.google.cloud.documentai.v1beta2.Document.Page.Token,
-              com.google.cloud.documentai.v1beta2.Document.Page.Token.Builder,
-              com.google.cloud.documentai.v1beta2.Document.Page.TokenOrBuilder>
-          tokensBuilder_;
-
-      /**
-       *
-       *
-       * 
-       * A list of visually detected tokens on the page.
+       * The text segments from the
+       * [Document.text][google.cloud.documentai.v1beta2.Document.text].
        * 

        *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.Token tokens = 8;
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.TextAnchor.TextSegment text_segments = 1;
+       * 
        */
-      public java.util.List
-          getTokensList() {
-        if (tokensBuilder_ == null) {
-          return java.util.Collections.unmodifiableList(tokens_);
+      public Builder addTextSegments(
+          com.google.cloud.documentai.v1beta2.Document.TextAnchor.TextSegment.Builder
+              builderForValue) {
+        if (textSegmentsBuilder_ == null) {
+          ensureTextSegmentsIsMutable();
+          textSegments_.add(builderForValue.build());
+          onChanged();
         } else {
-          return tokensBuilder_.getMessageList();
+          textSegmentsBuilder_.addMessage(builderForValue.build());
         }
+        return this;
       }
       /**
        *
        *
        * 
-       * A list of visually detected tokens on the page.
+       * The text segments from the
+       * [Document.text][google.cloud.documentai.v1beta2.Document.text].
        * 

        *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.Token tokens = 8;
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.TextAnchor.TextSegment text_segments = 1;
+       * 
        */
-      public int getTokensCount() {
-        if (tokensBuilder_ == null) {
-          return tokens_.size();
+      public Builder addTextSegments(
+          int index,
+          com.google.cloud.documentai.v1beta2.Document.TextAnchor.TextSegment.Builder
+              builderForValue) {
+        if (textSegmentsBuilder_ == null) {
+          ensureTextSegmentsIsMutable();
+          textSegments_.add(index, builderForValue.build());
+          onChanged();
         } else {
-          return tokensBuilder_.getCount();
+          textSegmentsBuilder_.addMessage(index, builderForValue.build());
         }
+        return this;
       }
       /**
        *
        *
        * 
-       * A list of visually detected tokens on the page.
+       * The text segments from the
+       * [Document.text][google.cloud.documentai.v1beta2.Document.text].
        * 

        *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.Token tokens = 8;
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.TextAnchor.TextSegment text_segments = 1;
+       * 
        */
-      public com.google.cloud.documentai.v1beta2.Document.Page.Token getTokens(int index) {
-        if (tokensBuilder_ == null) {
-          return tokens_.get(index);
+      public Builder addAllTextSegments(
+          java.lang.Iterable<
+                  ? extends com.google.cloud.documentai.v1beta2.Document.TextAnchor.TextSegment>
+              values) {
+        if (textSegmentsBuilder_ == null) {
+          ensureTextSegmentsIsMutable();
+          com.google.protobuf.AbstractMessageLite.Builder.addAll(values, textSegments_);
+          onChanged();
         } else {
-          return tokensBuilder_.getMessage(index);
+          textSegmentsBuilder_.addAllMessages(values);
         }
+        return this;
       }
       /**
        *
        *
        * 
-       * A list of visually detected tokens on the page.
+       * The text segments from the
+       * [Document.text][google.cloud.documentai.v1beta2.Document.text].
        * 

        *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.Token tokens = 8;
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.TextAnchor.TextSegment text_segments = 1;
+       * 
        */
-      public Builder setTokens(
-          int index, com.google.cloud.documentai.v1beta2.Document.Page.Token value) {
-        if (tokensBuilder_ == null) {
-          if (value == null) {
-            throw new NullPointerException();
-          }
-          ensureTokensIsMutable();
-          tokens_.set(index, value);
+      public Builder clearTextSegments() {
+        if (textSegmentsBuilder_ == null) {
+          textSegments_ = java.util.Collections.emptyList();
+          bitField0_ = (bitField0_ & ~0x00000001);
           onChanged();
         } else {
-          tokensBuilder_.setMessage(index, value);
+          textSegmentsBuilder_.clear();
         }
         return this;
       }
@@ -29664,20 +54907,21 @@ public Builder setTokens(
        *
        *
        * 
-       * A list of visually detected tokens on the page.
+       * The text segments from the
+       * [Document.text][google.cloud.documentai.v1beta2.Document.text].
        * 

        *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.Token tokens = 8;
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.TextAnchor.TextSegment text_segments = 1;
+       * 
        */
-      public Builder setTokens(
-          int index,
-          com.google.cloud.documentai.v1beta2.Document.Page.Token.Builder builderForValue) {
-        if (tokensBuilder_ == null) {
-          ensureTokensIsMutable();
-          tokens_.set(index, builderForValue.build());
+      public Builder removeTextSegments(int index) {
+        if (textSegmentsBuilder_ == null) {
+          ensureTextSegmentsIsMutable();
+          textSegments_.remove(index);
           onChanged();
         } else {
-          tokensBuilder_.setMessage(index, builderForValue.build());
+          textSegmentsBuilder_.remove(index);
         }
         return this;
       }
@@ -29685,2084 +54929,2323 @@ public Builder setTokens(
        *
        *
        * 
-       * A list of visually detected tokens on the page.
+       * The text segments from the
+       * [Document.text][google.cloud.documentai.v1beta2.Document.text].
        * 

        *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.Token tokens = 8;
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.TextAnchor.TextSegment text_segments = 1;
+       * 
        */
-      public Builder addTokens(com.google.cloud.documentai.v1beta2.Document.Page.Token value) {
-        if (tokensBuilder_ == null) {
-          if (value == null) {
-            throw new NullPointerException();
-          }
-          ensureTokensIsMutable();
-          tokens_.add(value);
-          onChanged();
-        } else {
-          tokensBuilder_.addMessage(value);
-        }
-        return this;
+      public com.google.cloud.documentai.v1beta2.Document.TextAnchor.TextSegment.Builder
+          getTextSegmentsBuilder(int index) {
+        return getTextSegmentsFieldBuilder().getBuilder(index);
       }
       /**
        *
        *
        * 
-       * A list of visually detected tokens on the page.
+       * The text segments from the
+       * [Document.text][google.cloud.documentai.v1beta2.Document.text].
        * 

        *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.Token tokens = 8;
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.TextAnchor.TextSegment text_segments = 1;
+       * 
        */
-      public Builder addTokens(
-          int index, com.google.cloud.documentai.v1beta2.Document.Page.Token value) {
-        if (tokensBuilder_ == null) {
-          if (value == null) {
-            throw new NullPointerException();
-          }
-          ensureTokensIsMutable();
-          tokens_.add(index, value);
-          onChanged();
+      public com.google.cloud.documentai.v1beta2.Document.TextAnchor.TextSegmentOrBuilder
+          getTextSegmentsOrBuilder(int index) {
+        if (textSegmentsBuilder_ == null) {
+          return textSegments_.get(index);
         } else {
-          tokensBuilder_.addMessage(index, value);
+          return textSegmentsBuilder_.getMessageOrBuilder(index);
         }
-        return this;
       }
       /**
        *
        *
        * 
-       * A list of visually detected tokens on the page.
+       * The text segments from the
+       * [Document.text][google.cloud.documentai.v1beta2.Document.text].
        * 

        *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.Token tokens = 8;
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.TextAnchor.TextSegment text_segments = 1;
+       * 
        */
-      public Builder addTokens(
-          com.google.cloud.documentai.v1beta2.Document.Page.Token.Builder builderForValue) {
-        if (tokensBuilder_ == null) {
-          ensureTokensIsMutable();
-          tokens_.add(builderForValue.build());
-          onChanged();
+      public java.util.List<
+              ? extends
+                  com.google.cloud.documentai.v1beta2.Document.TextAnchor.TextSegmentOrBuilder>
+          getTextSegmentsOrBuilderList() {
+        if (textSegmentsBuilder_ != null) {
+          return textSegmentsBuilder_.getMessageOrBuilderList();
         } else {
-          tokensBuilder_.addMessage(builderForValue.build());
+          return java.util.Collections.unmodifiableList(textSegments_);
         }
-        return this;
       }
       /**
        *
        *
        * 
-       * A list of visually detected tokens on the page.
+       * The text segments from the
+       * [Document.text][google.cloud.documentai.v1beta2.Document.text].
        * 

        *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.Token tokens = 8;
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.TextAnchor.TextSegment text_segments = 1;
+       * 
        */
-      public Builder addTokens(
-          int index,
-          com.google.cloud.documentai.v1beta2.Document.Page.Token.Builder builderForValue) {
-        if (tokensBuilder_ == null) {
-          ensureTokensIsMutable();
-          tokens_.add(index, builderForValue.build());
-          onChanged();
-        } else {
-          tokensBuilder_.addMessage(index, builderForValue.build());
+      public com.google.cloud.documentai.v1beta2.Document.TextAnchor.TextSegment.Builder
+          addTextSegmentsBuilder() {
+        return getTextSegmentsFieldBuilder()
+            .addBuilder(
+                com.google.cloud.documentai.v1beta2.Document.TextAnchor.TextSegment
+                    .getDefaultInstance());
+      }
+      /**
+       *
+       *
+       * 
+       * The text segments from the
+       * [Document.text][google.cloud.documentai.v1beta2.Document.text].
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.TextAnchor.TextSegment text_segments = 1;
+       * 
+       */
+      public com.google.cloud.documentai.v1beta2.Document.TextAnchor.TextSegment.Builder
+          addTextSegmentsBuilder(int index) {
+        return getTextSegmentsFieldBuilder()
+            .addBuilder(
+                index,
+                com.google.cloud.documentai.v1beta2.Document.TextAnchor.TextSegment
+                    .getDefaultInstance());
+      }
+      /**
+       *
+       *
+       * 
+       * The text segments from the
+       * [Document.text][google.cloud.documentai.v1beta2.Document.text].
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.TextAnchor.TextSegment text_segments = 1;
+       * 
+       */
+      public java.util.List<
+              com.google.cloud.documentai.v1beta2.Document.TextAnchor.TextSegment.Builder>
+          getTextSegmentsBuilderList() {
+        return getTextSegmentsFieldBuilder().getBuilderList();
+      }
+
+      private com.google.protobuf.RepeatedFieldBuilderV3<
+              com.google.cloud.documentai.v1beta2.Document.TextAnchor.TextSegment,
+              com.google.cloud.documentai.v1beta2.Document.TextAnchor.TextSegment.Builder,
+              com.google.cloud.documentai.v1beta2.Document.TextAnchor.TextSegmentOrBuilder>
+          getTextSegmentsFieldBuilder() {
+        if (textSegmentsBuilder_ == null) {
+          textSegmentsBuilder_ =
+              new com.google.protobuf.RepeatedFieldBuilderV3<
+                  com.google.cloud.documentai.v1beta2.Document.TextAnchor.TextSegment,
+                  com.google.cloud.documentai.v1beta2.Document.TextAnchor.TextSegment.Builder,
+                  com.google.cloud.documentai.v1beta2.Document.TextAnchor.TextSegmentOrBuilder>(
+                  textSegments_,
+                  ((bitField0_ & 0x00000001) != 0),
+                  getParentForChildren(),
+                  isClean());
+          textSegments_ = null;
         }
-        return this;
+        return textSegmentsBuilder_;
       }
+
+      private java.lang.Object content_ = "";
       /**
        *
        *
        * 
-       * A list of visually detected tokens on the page.
+       * Contains the content of the text span so that users do
+       * not have to look it up in the text_segments.  It is always
+       * populated for formFields.
        * 

        *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.Token tokens = 8;
+       * string content = 2;
+       *
+       * @return The content.
        */
-      public Builder addAllTokens(
-          java.lang.Iterable
-              values) {
-        if (tokensBuilder_ == null) {
-          ensureTokensIsMutable();
-          com.google.protobuf.AbstractMessageLite.Builder.addAll(values, tokens_);
-          onChanged();
+      public java.lang.String getContent() {
+        java.lang.Object ref = content_;
+        if (!(ref instanceof java.lang.String)) {
+          com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+          java.lang.String s = bs.toStringUtf8();
+          content_ = s;
+          return s;
         } else {
-          tokensBuilder_.addAllMessages(values);
+          return (java.lang.String) ref;
         }
-        return this;
       }
       /**
        *
        *
        * 
-       * A list of visually detected tokens on the page.
+       * Contains the content of the text span so that users do
+       * not have to look it up in the text_segments.  It is always
+       * populated for formFields.
        * 

        *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.Token tokens = 8;
+       * string content = 2;
+       *
+       * @return The bytes for content.
        */
-      public Builder clearTokens() {
-        if (tokensBuilder_ == null) {
-          tokens_ = java.util.Collections.emptyList();
-          bitField0_ = (bitField0_ & ~0x00000080);
-          onChanged();
+      public com.google.protobuf.ByteString getContentBytes() {
+        java.lang.Object ref = content_;
+        if (ref instanceof String) {
+          com.google.protobuf.ByteString b =
+              com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+          content_ = b;
+          return b;
         } else {
-          tokensBuilder_.clear();
+          return (com.google.protobuf.ByteString) ref;
         }
-        return this;
       }
       /**
        *
        *
        * 
-       * A list of visually detected tokens on the page.
+       * Contains the content of the text span so that users do
+       * not have to look it up in the text_segments.  It is always
+       * populated for formFields.
        * 

        *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.Token tokens = 8;
+       * string content = 2;
+       *
+       * @param value The content to set.
+       * @return This builder for chaining.
        */
-      public Builder removeTokens(int index) {
-        if (tokensBuilder_ == null) {
-          ensureTokensIsMutable();
-          tokens_.remove(index);
-          onChanged();
-        } else {
-          tokensBuilder_.remove(index);
+      public Builder setContent(java.lang.String value) {
+        if (value == null) {
+          throw new NullPointerException();
         }
+        content_ = value;
+        bitField0_ |= 0x00000002;
+        onChanged();
         return this;
       }
       /**
        *
        *
        * 
-       * A list of visually detected tokens on the page.
+       * Contains the content of the text span so that users do
+       * not have to look it up in the text_segments.  It is always
+       * populated for formFields.
        * 

        *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.Token tokens = 8;
+       * string content = 2;
+       *
+       * @return This builder for chaining.
        */
-      public com.google.cloud.documentai.v1beta2.Document.Page.Token.Builder getTokensBuilder(
-          int index) {
-        return getTokensFieldBuilder().getBuilder(index);
+      public Builder clearContent() {
+        content_ = getDefaultInstance().getContent();
+        bitField0_ = (bitField0_ & ~0x00000002);
+        onChanged();
+        return this;
       }
       /**
        *
        *
        * 
-       * A list of visually detected tokens on the page.
+       * Contains the content of the text span so that users do
+       * not have to look it up in the text_segments.  It is always
+       * populated for formFields.
        * 

        *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.Token tokens = 8;
+       * string content = 2;
+       *
+       * @param value The bytes for content to set.
+       * @return This builder for chaining.
        */
-      public com.google.cloud.documentai.v1beta2.Document.Page.TokenOrBuilder getTokensOrBuilder(
-          int index) {
-        if (tokensBuilder_ == null) {
-          return tokens_.get(index);
-        } else {
-          return tokensBuilder_.getMessageOrBuilder(index);
+      public Builder setContentBytes(com.google.protobuf.ByteString value) {
+        if (value == null) {
+          throw new NullPointerException();
         }
+        checkByteStringIsUtf8(value);
+        content_ = value;
+        bitField0_ |= 0x00000002;
+        onChanged();
+        return this;
+      }
+
+      @java.lang.Override
+      public final Builder setUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.setUnknownFields(unknownFields);
+      }
+
+      @java.lang.Override
+      public final Builder mergeUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.mergeUnknownFields(unknownFields);
       }
+
+      // @@protoc_insertion_point(builder_scope:google.cloud.documentai.v1beta2.Document.TextAnchor)
+    }
+
+    // @@protoc_insertion_point(class_scope:google.cloud.documentai.v1beta2.Document.TextAnchor)
+    private static final com.google.cloud.documentai.v1beta2.Document.TextAnchor DEFAULT_INSTANCE;
+
+    static {
+      DEFAULT_INSTANCE = new com.google.cloud.documentai.v1beta2.Document.TextAnchor();
+    }
+
+    public static com.google.cloud.documentai.v1beta2.Document.TextAnchor getDefaultInstance() {
+      return DEFAULT_INSTANCE;
+    }
+
+    private static final com.google.protobuf.Parser PARSER =
+        new com.google.protobuf.AbstractParser() {
+          @java.lang.Override
+          public TextAnchor parsePartialFrom(
+              com.google.protobuf.CodedInputStream input,
+              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+              throws com.google.protobuf.InvalidProtocolBufferException {
+            Builder builder = newBuilder();
+            try {
+              builder.mergeFrom(input, extensionRegistry);
+            } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+              throw e.setUnfinishedMessage(builder.buildPartial());
+            } catch (com.google.protobuf.UninitializedMessageException e) {
+              throw e.asInvalidProtocolBufferException()
+                  .setUnfinishedMessage(builder.buildPartial());
+            } catch (java.io.IOException e) {
+              throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                  .setUnfinishedMessage(builder.buildPartial());
+            }
+            return builder.buildPartial();
+          }
+        };
+
+    public static com.google.protobuf.Parser parser() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Parser getParserForType() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta2.Document.TextAnchor getDefaultInstanceForType() {
+      return DEFAULT_INSTANCE;
+    }
+  }
+
+  public interface PageAnchorOrBuilder
+      extends
+      // @@protoc_insertion_point(interface_extends:google.cloud.documentai.v1beta2.Document.PageAnchor)
+      com.google.protobuf.MessageOrBuilder {
+
+    /**
+     *
+     *
+     * 
+     * One or more references to visual page elements
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef page_refs = 1;
+     * 
+     */
+    java.util.List
+        getPageRefsList();
+    /**
+     *
+     *
+     * 
+     * One or more references to visual page elements
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef page_refs = 1;
+     * 
+     */
+    com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef getPageRefs(int index);
+    /**
+     *
+     *
+     * 
+     * One or more references to visual page elements
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef page_refs = 1;
+     * 
+     */
+    int getPageRefsCount();
+    /**
+     *
+     *
+     * 
+     * One or more references to visual page elements
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef page_refs = 1;
+     * 
+     */
+    java.util.List<
+            ? extends com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRefOrBuilder>
+        getPageRefsOrBuilderList();
+    /**
+     *
+     *
+     * 
+     * One or more references to visual page elements
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef page_refs = 1;
+     * 
+     */
+    com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRefOrBuilder getPageRefsOrBuilder(
+        int index);
+  }
+  /**
+   *
+   *
+   * 
+   * Referencing the visual context of the entity in the
+   * [Document.pages][google.cloud.documentai.v1beta2.Document.pages]. Page
+   * anchors can be cross-page, consist of multiple bounding polygons and
+   * optionally reference specific layout element types.
+   * 

+   *
+   * Protobuf type {@code google.cloud.documentai.v1beta2.Document.PageAnchor}
+   */
+  public static final class PageAnchor extends com.google.protobuf.GeneratedMessageV3
+      implements
+      // @@protoc_insertion_point(message_implements:google.cloud.documentai.v1beta2.Document.PageAnchor)
+      PageAnchorOrBuilder {
+    private static final long serialVersionUID = 0L;
+    // Use PageAnchor.newBuilder() to construct.
+    private PageAnchor(com.google.protobuf.GeneratedMessageV3.Builder builder) {
+      super(builder);
+    }
+
+    private PageAnchor() {
+      pageRefs_ = java.util.Collections.emptyList();
+    }
+
+    @java.lang.Override
+    @SuppressWarnings({"unused"})
+    protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+      return new PageAnchor();
+    }
+
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.documentai.v1beta2.DocumentProto
+          .internal_static_google_cloud_documentai_v1beta2_Document_PageAnchor_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.documentai.v1beta2.DocumentProto
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+        // @@protoc_insertion_point(interface_extends:google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef)
+        com.google.protobuf.MessageOrBuilder {
+
       /**
        *
        *
        * 
-       * A list of visually detected tokens on the page.
+       * Required. Index into the
+       * [Document.pages][google.cloud.documentai.v1beta2.Document.pages]
+       * element, for example using
+       * `[Document.pages][page_refs.page]` to locate the related page element.
+       * This field is skipped when its value is the default `0`. See
+       * https://developers.google.com/protocol-buffers/docs/proto3#json.
        * 

        *
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-      /**
-       *
-       *
-       * 
-       * A list of visually detected tokens on the page.
-       * 

+       * int64 page = 1 [(.google.api.field_behavior) = REQUIRED];
        *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.Token tokens = 8;
+       * @return The page.
        */
-      public com.google.cloud.documentai.v1beta2.Document.Page.Token.Builder addTokensBuilder() {
-        return getTokensFieldBuilder()
-            .addBuilder(
-                com.google.cloud.documentai.v1beta2.Document.Page.Token.getDefaultInstance());
-      }
+      long getPage();
+
       /**
        *
        *
        * 
-       * A list of visually detected tokens on the page.
+       * Optional. The type of the layout element that is being referenced if
+       * any.
        * 

        *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.Token tokens = 8;
-       */
-      public com.google.cloud.documentai.v1beta2.Document.Page.Token.Builder addTokensBuilder(
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-      }
-      /**
-       *
-       *
-       * 
-       * A list of visually detected tokens on the page.
-       * 

+       * 
+       * .google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef.LayoutType layout_type = 2 [(.google.api.field_behavior) = OPTIONAL];
+       * 
        *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.Token tokens = 8;
+       * @return The enum numeric value on the wire for layoutType.
        */
-      public java.util.List
-          getTokensBuilderList() {
-        return getTokensFieldBuilder().getBuilderList();
-      }
-
-      private com.google.protobuf.RepeatedFieldBuilderV3<
-              com.google.cloud.documentai.v1beta2.Document.Page.Token,
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-                  com.google.cloud.documentai.v1beta2.Document.Page.TokenOrBuilder>(
-                  tokens_, ((bitField0_ & 0x00000080) != 0), getParentForChildren(), isClean());
-          tokens_ = null;
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-        return tokensBuilder_;
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-
-      private java.util.List
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-
-      private void ensureVisualElementsIsMutable() {
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-          visualElements_ =
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-          bitField0_ |= 0x00000100;
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-
-      private com.google.protobuf.RepeatedFieldBuilderV3<
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-              com.google.cloud.documentai.v1beta2.Document.Page.VisualElement.Builder,
-              com.google.cloud.documentai.v1beta2.Document.Page.VisualElementOrBuilder>
-          visualElementsBuilder_;
-
+      int getLayoutTypeValue();
       /**
        *
        *
        * 
-       * A list of detected non-text visual elements e.g. checkbox,
-       * signature etc. on the page.
+       * Optional. The type of the layout element that is being referenced if
+       * any.
        * 

        *
        * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.VisualElement visual_elements = 9;
+       * .google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef.LayoutType layout_type = 2 [(.google.api.field_behavior) = OPTIONAL];
        * 
+       *
+       * @return The layoutType.
        */
-      public java.util.List
-          getVisualElementsList() {
-        if (visualElementsBuilder_ == null) {
-          return java.util.Collections.unmodifiableList(visualElements_);
-        } else {
-          return visualElementsBuilder_.getMessageList();
-        }
-      }
+      com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef.LayoutType getLayoutType();
+
       /**
        *
        *
        * 
-       * A list of detected non-text visual elements e.g. checkbox,
-       * signature etc. on the page.
+       * Optional. Deprecated.  Use
+       * [PageRef.bounding_poly][google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef.bounding_poly]
+       * instead.
        * 

        *
-       * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.VisualElement visual_elements = 9;
+       * string layout_id = 3 [deprecated = true, (.google.api.field_behavior) = OPTIONAL];
        * 
+       *
+       * @deprecated google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef.layout_id is
+       *     deprecated. See google/cloud/documentai/v1beta2/document.proto;l=782
+       * @return The layoutId.
        */
-      public int getVisualElementsCount() {
-        if (visualElementsBuilder_ == null) {
-          return visualElements_.size();
-        } else {
-          return visualElementsBuilder_.getCount();
-        }
-      }
+      @java.lang.Deprecated
+      java.lang.String getLayoutId();
       /**
        *
        *
        * 
-       * A list of detected non-text visual elements e.g. checkbox,
-       * signature etc. on the page.
+       * Optional. Deprecated.  Use
+       * [PageRef.bounding_poly][google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef.bounding_poly]
+       * instead.
        * 

        *
-       * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.VisualElement visual_elements = 9;
+       * string layout_id = 3 [deprecated = true, (.google.api.field_behavior) = OPTIONAL];
        * 
+       *
+       * @deprecated google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef.layout_id is
+       *     deprecated. See google/cloud/documentai/v1beta2/document.proto;l=782
+       * @return The bytes for layoutId.
        */
-      public com.google.cloud.documentai.v1beta2.Document.Page.VisualElement getVisualElements(
-          int index) {
-        if (visualElementsBuilder_ == null) {
-          return visualElements_.get(index);
-        } else {
-          return visualElementsBuilder_.getMessage(index);
-        }
-      }
+      @java.lang.Deprecated
+      com.google.protobuf.ByteString getLayoutIdBytes();
+
       /**
        *
        *
        * 
-       * A list of detected non-text visual elements e.g. checkbox,
-       * signature etc. on the page.
+       * Optional. Identifies the bounding polygon of a layout element on the
+       * page.
        * 

        *
        * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.VisualElement visual_elements = 9;
+       * .google.cloud.documentai.v1beta2.BoundingPoly bounding_poly = 4 [(.google.api.field_behavior) = OPTIONAL];
        * 
+       *
+       * @return Whether the boundingPoly field is set.
        */
-      public Builder setVisualElements(
-          int index, com.google.cloud.documentai.v1beta2.Document.Page.VisualElement value) {
-        if (visualElementsBuilder_ == null) {
-          if (value == null) {
-            throw new NullPointerException();
-          }
-          ensureVisualElementsIsMutable();
-          visualElements_.set(index, value);
-          onChanged();
-        } else {
-          visualElementsBuilder_.setMessage(index, value);
-        }
-        return this;
-      }
+      boolean hasBoundingPoly();
       /**
        *
        *
        * 
-       * A list of detected non-text visual elements e.g. checkbox,
-       * signature etc. on the page.
+       * Optional. Identifies the bounding polygon of a layout element on the
+       * page.
        * 

        *
        * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.VisualElement visual_elements = 9;
+       * .google.cloud.documentai.v1beta2.BoundingPoly bounding_poly = 4 [(.google.api.field_behavior) = OPTIONAL];
        * 
+       *
+       * @return The boundingPoly.
        */
-      public Builder setVisualElements(
-          int index,
-          com.google.cloud.documentai.v1beta2.Document.Page.VisualElement.Builder builderForValue) {
-        if (visualElementsBuilder_ == null) {
-          ensureVisualElementsIsMutable();
-          visualElements_.set(index, builderForValue.build());
-          onChanged();
-        } else {
-          visualElementsBuilder_.setMessage(index, builderForValue.build());
-        }
-        return this;
-      }
+      com.google.cloud.documentai.v1beta2.BoundingPoly getBoundingPoly();
       /**
        *
        *
        * 
-       * A list of detected non-text visual elements e.g. checkbox,
-       * signature etc. on the page.
+       * Optional. Identifies the bounding polygon of a layout element on the
+       * page.
        * 

        *
        * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.VisualElement visual_elements = 9;
+       * .google.cloud.documentai.v1beta2.BoundingPoly bounding_poly = 4 [(.google.api.field_behavior) = OPTIONAL];
        * 
        */
-      public Builder addVisualElements(
-          com.google.cloud.documentai.v1beta2.Document.Page.VisualElement value) {
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-          if (value == null) {
-            throw new NullPointerException();
-          }
-          ensureVisualElementsIsMutable();
-          visualElements_.add(value);
-          onChanged();
-        } else {
-          visualElementsBuilder_.addMessage(value);
-        }
-        return this;
-      }
+      com.google.cloud.documentai.v1beta2.BoundingPolyOrBuilder getBoundingPolyOrBuilder();
+
       /**
        *
        *
        * 
-       * A list of detected non-text visual elements e.g. checkbox,
-       * signature etc. on the page.
+       * Optional. Confidence of detected page element, if applicable. Range
+       * `[0, 1]`.
        * 

        *
-       * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.VisualElement visual_elements = 9;
-       * 
+       * float confidence = 5 [(.google.api.field_behavior) = OPTIONAL];
+       *
+       * @return The confidence.
        */
-      public Builder addVisualElements(
-          int index, com.google.cloud.documentai.v1beta2.Document.Page.VisualElement value) {
-        if (visualElementsBuilder_ == null) {
-          if (value == null) {
-            throw new NullPointerException();
-          }
-          ensureVisualElementsIsMutable();
-          visualElements_.add(index, value);
-          onChanged();
-        } else {
-          visualElementsBuilder_.addMessage(index, value);
-        }
-        return this;
+      float getConfidence();
+    }
+    /**
+     *
+     *
+     * 
+     * Represents a weak reference to a page element within a document.
+     * 

+     *
+     * Protobuf type {@code google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef}
+     */
+    public static final class PageRef extends com.google.protobuf.GeneratedMessageV3
+        implements
+        // @@protoc_insertion_point(message_implements:google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef)
+        PageRefOrBuilder {
+      private static final long serialVersionUID = 0L;
+      // Use PageRef.newBuilder() to construct.
+      private PageRef(com.google.protobuf.GeneratedMessageV3.Builder builder) {
+        super(builder);
+      }
+
+      private PageRef() {
+        layoutType_ = 0;
+        layoutId_ = "";
+      }
+
+      @java.lang.Override
+      @SuppressWarnings({"unused"})
+      protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+        return new PageRef();
+      }
+
+      public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+        return com.google.cloud.documentai.v1beta2.DocumentProto
+            .internal_static_google_cloud_documentai_v1beta2_Document_PageAnchor_PageRef_descriptor;
+      }
+
+      @java.lang.Override
+      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+          internalGetFieldAccessorTable() {
+        return com.google.cloud.documentai.v1beta2.DocumentProto
+            .internal_static_google_cloud_documentai_v1beta2_Document_PageAnchor_PageRef_fieldAccessorTable
+            .ensureFieldAccessorsInitialized(
+                com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef.class,
+                com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef.Builder.class);
       }
+
       /**
        *
        *
        * 
-       * A list of detected non-text visual elements e.g. checkbox,
-       * signature etc. on the page.
+       * The type of layout that is being referenced.
        * 

        *
-       * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.VisualElement visual_elements = 9;
-       * 
+       * Protobuf enum {@code
+       * google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef.LayoutType}
        */
-      public Builder addVisualElements(
-          com.google.cloud.documentai.v1beta2.Document.Page.VisualElement.Builder builderForValue) {
-        if (visualElementsBuilder_ == null) {
-          ensureVisualElementsIsMutable();
-          visualElements_.add(builderForValue.build());
-          onChanged();
-        } else {
-          visualElementsBuilder_.addMessage(builderForValue.build());
+      public enum LayoutType implements com.google.protobuf.ProtocolMessageEnum {
+        /**
+         *
+         *
+         * 
+         * Layout Unspecified.
+         * 

+         *
+         * LAYOUT_TYPE_UNSPECIFIED = 0;
+         */
+        LAYOUT_TYPE_UNSPECIFIED(0),
+        /**
+         *
+         *
+         * 
+         * References a
+         * [Page.blocks][google.cloud.documentai.v1beta2.Document.Page.blocks]
+         * element.
+         * 

+         *
+         * BLOCK = 1;
+         */
+        BLOCK(1),
+        /**
+         *
+         *
+         * 
+         * References a
+         * [Page.paragraphs][google.cloud.documentai.v1beta2.Document.Page.paragraphs]
+         * element.
+         * 

+         *
+         * PARAGRAPH = 2;
+         */
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+        /**
+         *
+         *
+         * 
+         * References a
+         * [Page.lines][google.cloud.documentai.v1beta2.Document.Page.lines]
+         * element.
+         * 

+         *
+         * LINE = 3;
+         */
+        LINE(3),
+        /**
+         *
+         *
+         * 
+         * References a
+         * [Page.tokens][google.cloud.documentai.v1beta2.Document.Page.tokens]
+         * element.
+         * 

+         *
+         * TOKEN = 4;
+         */
+        TOKEN(4),
+        /**
+         *
+         *
+         * 
+         * References a
+         * [Page.visual_elements][google.cloud.documentai.v1beta2.Document.Page.visual_elements]
+         * element.
+         * 

+         *
+         * VISUAL_ELEMENT = 5;
+         */
+        VISUAL_ELEMENT(5),
+        /**
+         *
+         *
+         * 
+         * Refrrences a
+         * [Page.tables][google.cloud.documentai.v1beta2.Document.Page.tables]
+         * element.
+         * 

+         *
+         * TABLE = 6;
+         */
+        TABLE(6),
+        /**
+         *
+         *
+         * 
+         * References a
+         * [Page.form_fields][google.cloud.documentai.v1beta2.Document.Page.form_fields]
+         * element.
+         * 

+         *
+         * FORM_FIELD = 7;
+         */
+        FORM_FIELD(7),
+        UNRECOGNIZED(-1),
+        ;
+
+        /**
+         *
+         *
+         * 
+         * Layout Unspecified.
+         * 

+         *
+         * LAYOUT_TYPE_UNSPECIFIED = 0;
+         */
+        public static final int LAYOUT_TYPE_UNSPECIFIED_VALUE = 0;
+        /**
+         *
+         *
+         * 
+         * References a
+         * [Page.blocks][google.cloud.documentai.v1beta2.Document.Page.blocks]
+         * element.
+         * 

+         *
+         * BLOCK = 1;
+         */
+        public static final int BLOCK_VALUE = 1;
+        /**
+         *
+         *
+         * 
+         * References a
+         * [Page.paragraphs][google.cloud.documentai.v1beta2.Document.Page.paragraphs]
+         * element.
+         * 

+         *
+         * PARAGRAPH = 2;
+         */
+        public static final int PARAGRAPH_VALUE = 2;
+        /**
+         *
+         *
+         * 
+         * References a
+         * [Page.lines][google.cloud.documentai.v1beta2.Document.Page.lines]
+         * element.
+         * 

+         *
+         * LINE = 3;
+         */
+        public static final int LINE_VALUE = 3;
+        /**
+         *
+         *
+         * 
+         * References a
+         * [Page.tokens][google.cloud.documentai.v1beta2.Document.Page.tokens]
+         * element.
+         * 

+         *
+         * TOKEN = 4;
+         */
+        public static final int TOKEN_VALUE = 4;
+        /**
+         *
+         *
+         * 
+         * References a
+         * [Page.visual_elements][google.cloud.documentai.v1beta2.Document.Page.visual_elements]
+         * element.
+         * 

+         *
+         * VISUAL_ELEMENT = 5;
+         */
+        public static final int VISUAL_ELEMENT_VALUE = 5;
+        /**
+         *
+         *
+         * 
+         * Refrrences a
+         * [Page.tables][google.cloud.documentai.v1beta2.Document.Page.tables]
+         * element.
+         * 

+         *
+         * TABLE = 6;
+         */
+        public static final int TABLE_VALUE = 6;
+        /**
+         *
+         *
+         * 
+         * References a
+         * [Page.form_fields][google.cloud.documentai.v1beta2.Document.Page.form_fields]
+         * element.
+         * 

+         *
+         * FORM_FIELD = 7;
+         */
+        public static final int FORM_FIELD_VALUE = 7;
+
+        public final int getNumber() {
+          if (this == UNRECOGNIZED) {
+            throw new java.lang.IllegalArgumentException(
+                "Can't get the number of an unknown enum value.");
+          }
+          return value;
+        }
+
+        /**
+         * @param value The numeric wire value of the corresponding enum entry.
+         * @return The enum associated with the given numeric wire value.
+         * @deprecated Use {@link #forNumber(int)} instead.
+         */
+        @java.lang.Deprecated
+        public static LayoutType valueOf(int value) {
+          return forNumber(value);
+        }
+
+        /**
+         * @param value The numeric wire value of the corresponding enum entry.
+         * @return The enum associated with the given numeric wire value.
+         */
+        public static LayoutType forNumber(int value) {
+          switch (value) {
+            case 0:
+              return LAYOUT_TYPE_UNSPECIFIED;
+            case 1:
+              return BLOCK;
+            case 2:
+              return PARAGRAPH;
+            case 3:
+              return LINE;
+            case 4:
+              return TOKEN;
+            case 5:
+              return VISUAL_ELEMENT;
+            case 6:
+              return TABLE;
+            case 7:
+              return FORM_FIELD;
+            default:
+              return null;
+          }
+        }
+
+        public static com.google.protobuf.Internal.EnumLiteMap internalGetValueMap() {
+          return internalValueMap;
+        }
+
+        private static final com.google.protobuf.Internal.EnumLiteMap internalValueMap =
+            new com.google.protobuf.Internal.EnumLiteMap() {
+              public LayoutType findValueByNumber(int number) {
+                return LayoutType.forNumber(number);
+              }
+            };
+
+        public final com.google.protobuf.Descriptors.EnumValueDescriptor getValueDescriptor() {
+          if (this == UNRECOGNIZED) {
+            throw new java.lang.IllegalStateException(
+                "Can't get the descriptor of an unrecognized enum value.");
+          }
+          return getDescriptor().getValues().get(ordinal());
+        }
+
+        public final com.google.protobuf.Descriptors.EnumDescriptor getDescriptorForType() {
+          return getDescriptor();
+        }
+
+        public static final com.google.protobuf.Descriptors.EnumDescriptor getDescriptor() {
+          return com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef.getDescriptor()
+              .getEnumTypes()
+              .get(0);
+        }
+
+        private static final LayoutType[] VALUES = values();
+
+        public static LayoutType valueOf(com.google.protobuf.Descriptors.EnumValueDescriptor desc) {
+          if (desc.getType() != getDescriptor()) {
+            throw new java.lang.IllegalArgumentException(
+                "EnumValueDescriptor is not for this type.");
+          }
+          if (desc.getIndex() == -1) {
+            return UNRECOGNIZED;
+          }
+          return VALUES[desc.getIndex()];
         }
-        return this;
+
+        private final int value;
+
+        private LayoutType(int value) {
+          this.value = value;
+        }
+
+        // @@protoc_insertion_point(enum_scope:google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef.LayoutType)
       }
+
+      public static final int PAGE_FIELD_NUMBER = 1;
+      private long page_ = 0L;
       /**
        *
        *
        * 
-       * A list of detected non-text visual elements e.g. checkbox,
-       * signature etc. on the page.
+       * Required. Index into the
+       * [Document.pages][google.cloud.documentai.v1beta2.Document.pages]
+       * element, for example using
+       * `[Document.pages][page_refs.page]` to locate the related page element.
+       * This field is skipped when its value is the default `0`. See
+       * https://developers.google.com/protocol-buffers/docs/proto3#json.
        * 

        *
-       * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.VisualElement visual_elements = 9;
-       * 
+       * int64 page = 1 [(.google.api.field_behavior) = REQUIRED];
+       *
+       * @return The page.
        */
-      public Builder addVisualElements(
-          int index,
-          com.google.cloud.documentai.v1beta2.Document.Page.VisualElement.Builder builderForValue) {
-        if (visualElementsBuilder_ == null) {
-          ensureVisualElementsIsMutable();
-          visualElements_.add(index, builderForValue.build());
-          onChanged();
-        } else {
-          visualElementsBuilder_.addMessage(index, builderForValue.build());
-        }
-        return this;
+      @java.lang.Override
+      public long getPage() {
+        return page_;
       }
+
+      public static final int LAYOUT_TYPE_FIELD_NUMBER = 2;
+      private int layoutType_ = 0;
       /**
        *
        *
        * 
-       * A list of detected non-text visual elements e.g. checkbox,
-       * signature etc. on the page.
+       * Optional. The type of the layout element that is being referenced if
+       * any.
        * 

        *
        * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.VisualElement visual_elements = 9;
+       * .google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef.LayoutType layout_type = 2 [(.google.api.field_behavior) = OPTIONAL];
        * 
+       *
+       * @return The enum numeric value on the wire for layoutType.
        */
-      public Builder addAllVisualElements(
-          java.lang.Iterable<
-                  ? extends com.google.cloud.documentai.v1beta2.Document.Page.VisualElement>
-              values) {
-        if (visualElementsBuilder_ == null) {
-          ensureVisualElementsIsMutable();
-          com.google.protobuf.AbstractMessageLite.Builder.addAll(values, visualElements_);
-          onChanged();
-        } else {
-          visualElementsBuilder_.addAllMessages(values);
-        }
-        return this;
+      @java.lang.Override
+      public int getLayoutTypeValue() {
+        return layoutType_;
       }
       /**
        *
        *
        * 
-       * A list of detected non-text visual elements e.g. checkbox,
-       * signature etc. on the page.
+       * Optional. The type of the layout element that is being referenced if
+       * any.
        * 

        *
        * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.VisualElement visual_elements = 9;
+       * .google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef.LayoutType layout_type = 2 [(.google.api.field_behavior) = OPTIONAL];
        * 
+       *
+       * @return The layoutType.
        */
-      public Builder clearVisualElements() {
-        if (visualElementsBuilder_ == null) {
-          visualElements_ = java.util.Collections.emptyList();
-          bitField0_ = (bitField0_ & ~0x00000100);
-          onChanged();
-        } else {
-          visualElementsBuilder_.clear();
-        }
-        return this;
+      @java.lang.Override
+      public com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef.LayoutType
+          getLayoutType() {
+        com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef.LayoutType result =
+            com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef.LayoutType.forNumber(
+                layoutType_);
+        return result == null
+            ? com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef.LayoutType
+                .UNRECOGNIZED
+            : result;
       }
+
+      public static final int LAYOUT_ID_FIELD_NUMBER = 3;
+
+      @SuppressWarnings("serial")
+      private volatile java.lang.Object layoutId_ = "";
       /**
        *
        *
        * 
-       * A list of detected non-text visual elements e.g. checkbox,
-       * signature etc. on the page.
+       * Optional. Deprecated.  Use
+       * [PageRef.bounding_poly][google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef.bounding_poly]
+       * instead.
        * 

        *
-       * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.VisualElement visual_elements = 9;
+       * string layout_id = 3 [deprecated = true, (.google.api.field_behavior) = OPTIONAL];
        * 
+       *
+       * @deprecated google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef.layout_id is
+       *     deprecated. See google/cloud/documentai/v1beta2/document.proto;l=782
+       * @return The layoutId.
        */
-      public Builder removeVisualElements(int index) {
-        if (visualElementsBuilder_ == null) {
-          ensureVisualElementsIsMutable();
-          visualElements_.remove(index);
-          onChanged();
+      @java.lang.Override
+      @java.lang.Deprecated
+      public java.lang.String getLayoutId() {
+        java.lang.Object ref = layoutId_;
+        if (ref instanceof java.lang.String) {
+          return (java.lang.String) ref;
         } else {
-          visualElementsBuilder_.remove(index);
+          com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+          java.lang.String s = bs.toStringUtf8();
+          layoutId_ = s;
+          return s;
         }
-        return this;
       }
       /**
        *
        *
        * 
-       * A list of detected non-text visual elements e.g. checkbox,
-       * signature etc. on the page.
+       * Optional. Deprecated.  Use
+       * [PageRef.bounding_poly][google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef.bounding_poly]
+       * instead.
        * 

        *
-       * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.VisualElement visual_elements = 9;
+       * string layout_id = 3 [deprecated = true, (.google.api.field_behavior) = OPTIONAL];
        * 
-       */
-      public com.google.cloud.documentai.v1beta2.Document.Page.VisualElement.Builder
-          getVisualElementsBuilder(int index) {
-        return getVisualElementsFieldBuilder().getBuilder(index);
-      }
-      /**
-       *
-       *
-       * 
-       * A list of detected non-text visual elements e.g. checkbox,
-       * signature etc. on the page.
-       * 

        *
-       * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.VisualElement visual_elements = 9;
-       * 
+       * @deprecated google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef.layout_id is
+       *     deprecated. See google/cloud/documentai/v1beta2/document.proto;l=782
+       * @return The bytes for layoutId.
        */
-      public com.google.cloud.documentai.v1beta2.Document.Page.VisualElementOrBuilder
-          getVisualElementsOrBuilder(int index) {
-        if (visualElementsBuilder_ == null) {
-          return visualElements_.get(index);
+      @java.lang.Override
+      @java.lang.Deprecated
+      public com.google.protobuf.ByteString getLayoutIdBytes() {
+        java.lang.Object ref = layoutId_;
+        if (ref instanceof java.lang.String) {
+          com.google.protobuf.ByteString b =
+              com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+          layoutId_ = b;
+          return b;
         } else {
-          return visualElementsBuilder_.getMessageOrBuilder(index);
+          return (com.google.protobuf.ByteString) ref;
         }
       }
+
+      public static final int BOUNDING_POLY_FIELD_NUMBER = 4;
+      private com.google.cloud.documentai.v1beta2.BoundingPoly boundingPoly_;
       /**
        *
        *
        * 
-       * A list of detected non-text visual elements e.g. checkbox,
-       * signature etc. on the page.
+       * Optional. Identifies the bounding polygon of a layout element on the
+       * page.
        * 

        *
        * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.VisualElement visual_elements = 9;
+       * .google.cloud.documentai.v1beta2.BoundingPoly bounding_poly = 4 [(.google.api.field_behavior) = OPTIONAL];
        * 
+       *
+       * @return Whether the boundingPoly field is set.
        */
-      public java.util.List<
-              ? extends com.google.cloud.documentai.v1beta2.Document.Page.VisualElementOrBuilder>
-          getVisualElementsOrBuilderList() {
-        if (visualElementsBuilder_ != null) {
-          return visualElementsBuilder_.getMessageOrBuilderList();
-        } else {
-          return java.util.Collections.unmodifiableList(visualElements_);
-        }
+      @java.lang.Override
+      public boolean hasBoundingPoly() {
+        return boundingPoly_ != null;
       }
       /**
        *
        *
        * 
-       * A list of detected non-text visual elements e.g. checkbox,
-       * signature etc. on the page.
+       * Optional. Identifies the bounding polygon of a layout element on the
+       * page.
        * 

        *
        * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.VisualElement visual_elements = 9;
+       * .google.cloud.documentai.v1beta2.BoundingPoly bounding_poly = 4 [(.google.api.field_behavior) = OPTIONAL];
        * 
+       *
+       * @return The boundingPoly.
        */
-      public com.google.cloud.documentai.v1beta2.Document.Page.VisualElement.Builder
-          addVisualElementsBuilder() {
-        return getVisualElementsFieldBuilder()
-            .addBuilder(
-                com.google.cloud.documentai.v1beta2.Document.Page.VisualElement
-                    .getDefaultInstance());
+      @java.lang.Override
+      public com.google.cloud.documentai.v1beta2.BoundingPoly getBoundingPoly() {
+        return boundingPoly_ == null
+            ? com.google.cloud.documentai.v1beta2.BoundingPoly.getDefaultInstance()
+            : boundingPoly_;
       }
       /**
        *
        *
        * 
-       * A list of detected non-text visual elements e.g. checkbox,
-       * signature etc. on the page.
+       * Optional. Identifies the bounding polygon of a layout element on the
+       * page.
        * 

        *
        * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.VisualElement visual_elements = 9;
+       * .google.cloud.documentai.v1beta2.BoundingPoly bounding_poly = 4 [(.google.api.field_behavior) = OPTIONAL];
        * 
        */
-      public com.google.cloud.documentai.v1beta2.Document.Page.VisualElement.Builder
-          addVisualElementsBuilder(int index) {
-        return getVisualElementsFieldBuilder()
-            .addBuilder(
-                index,
-                com.google.cloud.documentai.v1beta2.Document.Page.VisualElement
-                    .getDefaultInstance());
+      @java.lang.Override
+      public com.google.cloud.documentai.v1beta2.BoundingPolyOrBuilder getBoundingPolyOrBuilder() {
+        return boundingPoly_ == null
+            ? com.google.cloud.documentai.v1beta2.BoundingPoly.getDefaultInstance()
+            : boundingPoly_;
       }
+
+      public static final int CONFIDENCE_FIELD_NUMBER = 5;
+      private float confidence_ = 0F;
       /**
        *
        *
        * 
-       * A list of detected non-text visual elements e.g. checkbox,
-       * signature etc. on the page.
+       * Optional. Confidence of detected page element, if applicable. Range
+       * `[0, 1]`.
        * 

        *
-       * 
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.VisualElement visual_elements = 9;
-       * 
+       * float confidence = 5 [(.google.api.field_behavior) = OPTIONAL];
+       *
+       * @return The confidence.
        */
-      public java.util.List
-          getVisualElementsBuilderList() {
-        return getVisualElementsFieldBuilder().getBuilderList();
+      @java.lang.Override
+      public float getConfidence() {
+        return confidence_;
       }
 
-      private com.google.protobuf.RepeatedFieldBuilderV3<
-              com.google.cloud.documentai.v1beta2.Document.Page.VisualElement,
-              com.google.cloud.documentai.v1beta2.Document.Page.VisualElement.Builder,
-              com.google.cloud.documentai.v1beta2.Document.Page.VisualElementOrBuilder>
-          getVisualElementsFieldBuilder() {
-        if (visualElementsBuilder_ == null) {
-          visualElementsBuilder_ =
-              new com.google.protobuf.RepeatedFieldBuilderV3<
-                  com.google.cloud.documentai.v1beta2.Document.Page.VisualElement,
-                  com.google.cloud.documentai.v1beta2.Document.Page.VisualElement.Builder,
-                  com.google.cloud.documentai.v1beta2.Document.Page.VisualElementOrBuilder>(
-                  visualElements_,
-                  ((bitField0_ & 0x00000100) != 0),
-                  getParentForChildren(),
-                  isClean());
-          visualElements_ = null;
+      private byte memoizedIsInitialized = -1;
+
+      @java.lang.Override
+      public final boolean isInitialized() {
+        byte isInitialized = memoizedIsInitialized;
+        if (isInitialized == 1) return true;
+        if (isInitialized == 0) return false;
+
+        memoizedIsInitialized = 1;
+        return true;
+      }
+
+      @java.lang.Override
+      public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+        if (page_ != 0L) {
+          output.writeInt64(1, page_);
         }
-        return visualElementsBuilder_;
+        if (layoutType_
+            != com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef.LayoutType
+                .LAYOUT_TYPE_UNSPECIFIED
+                .getNumber()) {
+          output.writeEnum(2, layoutType_);
+        }
+        if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(layoutId_)) {
+          com.google.protobuf.GeneratedMessageV3.writeString(output, 3, layoutId_);
+        }
+        if (boundingPoly_ != null) {
+          output.writeMessage(4, getBoundingPoly());
+        }
+        if (java.lang.Float.floatToRawIntBits(confidence_) != 0) {
+          output.writeFloat(5, confidence_);
+        }
+        getUnknownFields().writeTo(output);
       }
 
-      private java.util.List tables_ =
-          java.util.Collections.emptyList();
+      @java.lang.Override
+      public int getSerializedSize() {
+        int size = memoizedSize;
+        if (size != -1) return size;
 
-      private void ensureTablesIsMutable() {
-        if (!((bitField0_ & 0x00000200) != 0)) {
-          tables_ =
-              new java.util.ArrayList(
-                  tables_);
-          bitField0_ |= 0x00000200;
+        size = 0;
+        if (page_ != 0L) {
+          size += com.google.protobuf.CodedOutputStream.computeInt64Size(1, page_);
+        }
+        if (layoutType_
+            != com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef.LayoutType
+                .LAYOUT_TYPE_UNSPECIFIED
+                .getNumber()) {
+          size += com.google.protobuf.CodedOutputStream.computeEnumSize(2, layoutType_);
+        }
+        if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(layoutId_)) {
+          size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, layoutId_);
+        }
+        if (boundingPoly_ != null) {
+          size += com.google.protobuf.CodedOutputStream.computeMessageSize(4, getBoundingPoly());
+        }
+        if (java.lang.Float.floatToRawIntBits(confidence_) != 0) {
+          size += com.google.protobuf.CodedOutputStream.computeFloatSize(5, confidence_);
         }
+        size += getUnknownFields().getSerializedSize();
+        memoizedSize = size;
+        return size;
       }
 
-      private com.google.protobuf.RepeatedFieldBuilderV3<
-              com.google.cloud.documentai.v1beta2.Document.Page.Table,
-              com.google.cloud.documentai.v1beta2.Document.Page.Table.Builder,
-              com.google.cloud.documentai.v1beta2.Document.Page.TableOrBuilder>
-          tablesBuilder_;
+      @java.lang.Override
+      public boolean equals(final java.lang.Object obj) {
+        if (obj == this) {
+          return true;
+        }
+        if (!(obj instanceof com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef)) {
+          return super.equals(obj);
+        }
+        com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef other =
+            (com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef) obj;
 
-      /**
-       *
-       *
-       * 
-       * A list of visually detected tables on the page.
-       * 

-       *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.Table tables = 10;
-       */
-      public java.util.List
-          getTablesList() {
-        if (tablesBuilder_ == null) {
-          return java.util.Collections.unmodifiableList(tables_);
-        } else {
-          return tablesBuilder_.getMessageList();
+        if (getPage() != other.getPage()) return false;
+        if (layoutType_ != other.layoutType_) return false;
+        if (!getLayoutId().equals(other.getLayoutId())) return false;
+        if (hasBoundingPoly() != other.hasBoundingPoly()) return false;
+        if (hasBoundingPoly()) {
+          if (!getBoundingPoly().equals(other.getBoundingPoly())) return false;
         }
+        if (java.lang.Float.floatToIntBits(getConfidence())
+            != java.lang.Float.floatToIntBits(other.getConfidence())) return false;
+        if (!getUnknownFields().equals(other.getUnknownFields())) return false;
+        return true;
       }
-      /**
-       *
-       *
-       * 
-       * A list of visually detected tables on the page.
-       * 

-       *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.Table tables = 10;
-       */
-      public int getTablesCount() {
-        if (tablesBuilder_ == null) {
-          return tables_.size();
-        } else {
-          return tablesBuilder_.getCount();
+
+      @java.lang.Override
+      public int hashCode() {
+        if (memoizedHashCode != 0) {
+          return memoizedHashCode;
         }
-      }
-      /**
-       *
-       *
-       * 
-       * A list of visually detected tables on the page.
-       * 

-       *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.Table tables = 10;
-       */
-      public com.google.cloud.documentai.v1beta2.Document.Page.Table getTables(int index) {
-        if (tablesBuilder_ == null) {
-          return tables_.get(index);
-        } else {
-          return tablesBuilder_.getMessage(index);
+        int hash = 41;
+        hash = (19 * hash) + getDescriptor().hashCode();
+        hash = (37 * hash) + PAGE_FIELD_NUMBER;
+        hash = (53 * hash) + com.google.protobuf.Internal.hashLong(getPage());
+        hash = (37 * hash) + LAYOUT_TYPE_FIELD_NUMBER;
+        hash = (53 * hash) + layoutType_;
+        hash = (37 * hash) + LAYOUT_ID_FIELD_NUMBER;
+        hash = (53 * hash) + getLayoutId().hashCode();
+        if (hasBoundingPoly()) {
+          hash = (37 * hash) + BOUNDING_POLY_FIELD_NUMBER;
+          hash = (53 * hash) + getBoundingPoly().hashCode();
         }
+        hash = (37 * hash) + CONFIDENCE_FIELD_NUMBER;
+        hash = (53 * hash) + java.lang.Float.floatToIntBits(getConfidence());
+        hash = (29 * hash) + getUnknownFields().hashCode();
+        memoizedHashCode = hash;
+        return hash;
       }
-      /**
-       *
-       *
-       * 
-       * A list of visually detected tables on the page.
-       * 

-       *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.Table tables = 10;
-       */
-      public Builder setTables(
-          int index, com.google.cloud.documentai.v1beta2.Document.Page.Table value) {
-        if (tablesBuilder_ == null) {
-          if (value == null) {
-            throw new NullPointerException();
-          }
-          ensureTablesIsMutable();
-          tables_.set(index, value);
-          onChanged();
-        } else {
-          tablesBuilder_.setMessage(index, value);
-        }
-        return this;
+
+      public static com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef parseFrom(
+          java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+        return PARSER.parseFrom(data);
       }
-      /**
-       *
-       *
-       * 
-       * A list of visually detected tables on the page.
-       * 

-       *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.Table tables = 10;
-       */
-      public Builder setTables(
-          int index,
-          com.google.cloud.documentai.v1beta2.Document.Page.Table.Builder builderForValue) {
-        if (tablesBuilder_ == null) {
-          ensureTablesIsMutable();
-          tables_.set(index, builderForValue.build());
-          onChanged();
-        } else {
-          tablesBuilder_.setMessage(index, builderForValue.build());
-        }
-        return this;
+
+      public static com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef parseFrom(
+          java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws com.google.protobuf.InvalidProtocolBufferException {
+        return PARSER.parseFrom(data, extensionRegistry);
+      }
+
+      public static com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef parseFrom(
+          com.google.protobuf.ByteString data)
+          throws com.google.protobuf.InvalidProtocolBufferException {
+        return PARSER.parseFrom(data);
+      }
+
+      public static com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef parseFrom(
+          com.google.protobuf.ByteString data,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws com.google.protobuf.InvalidProtocolBufferException {
+        return PARSER.parseFrom(data, extensionRegistry);
+      }
+
+      public static com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef parseFrom(
+          byte[] data) throws com.google.protobuf.InvalidProtocolBufferException {
+        return PARSER.parseFrom(data);
+      }
+
+      public static com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef parseFrom(
+          byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws com.google.protobuf.InvalidProtocolBufferException {
+        return PARSER.parseFrom(data, extensionRegistry);
+      }
+
+      public static com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef parseFrom(
+          java.io.InputStream input) throws java.io.IOException {
+        return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+      }
+
+      public static com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef parseFrom(
+          java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+        return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+            PARSER, input, extensionRegistry);
+      }
+
+      public static com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef
+          parseDelimitedFrom(java.io.InputStream input) throws java.io.IOException {
+        return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+      }
+
+      public static com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef
+          parseDelimitedFrom(
+              java.io.InputStream input,
+              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+              throws java.io.IOException {
+        return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+            PARSER, input, extensionRegistry);
+      }
+
+      public static com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef parseFrom(
+          com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+        return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+      }
+
+      public static com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef parseFrom(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+        return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+            PARSER, input, extensionRegistry);
+      }
+
+      @java.lang.Override
+      public Builder newBuilderForType() {
+        return newBuilder();
+      }
+
+      public static Builder newBuilder() {
+        return DEFAULT_INSTANCE.toBuilder();
+      }
+
+      public static Builder newBuilder(
+          com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef prototype) {
+        return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+      }
+
+      @java.lang.Override
+      public Builder toBuilder() {
+        return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+      }
+
+      @java.lang.Override
+      protected Builder newBuilderForType(
+          com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+        Builder builder = new Builder(parent);
+        return builder;
       }
       /**
        *
        *
        * 
-       * A list of visually detected tables on the page.
+       * Represents a weak reference to a page element within a document.
        * 

        *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.Table tables = 10;
+       * Protobuf type {@code google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef}
        */
-      public Builder addTables(com.google.cloud.documentai.v1beta2.Document.Page.Table value) {
-        if (tablesBuilder_ == null) {
-          if (value == null) {
-            throw new NullPointerException();
+      public static final class Builder
+          extends com.google.protobuf.GeneratedMessageV3.Builder
+          implements
+          // @@protoc_insertion_point(builder_implements:google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef)
+          com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRefOrBuilder {
+        public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+          return com.google.cloud.documentai.v1beta2.DocumentProto
+              .internal_static_google_cloud_documentai_v1beta2_Document_PageAnchor_PageRef_descriptor;
+        }
+
+        @java.lang.Override
+        protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+            internalGetFieldAccessorTable() {
+          return com.google.cloud.documentai.v1beta2.DocumentProto
+              .internal_static_google_cloud_documentai_v1beta2_Document_PageAnchor_PageRef_fieldAccessorTable
+              .ensureFieldAccessorsInitialized(
+                  com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef.class,
+                  com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef.Builder.class);
+        }
+
+        // Construct using
+        // com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef.newBuilder()
+        private Builder() {}
+
+        private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+          super(parent);
+        }
+
+        @java.lang.Override
+        public Builder clear() {
+          super.clear();
+          bitField0_ = 0;
+          page_ = 0L;
+          layoutType_ = 0;
+          layoutId_ = "";
+          boundingPoly_ = null;
+          if (boundingPolyBuilder_ != null) {
+            boundingPolyBuilder_.dispose();
+            boundingPolyBuilder_ = null;
           }
-          ensureTablesIsMutable();
-          tables_.add(value);
-          onChanged();
-        } else {
-          tablesBuilder_.addMessage(value);
+          confidence_ = 0F;
+          return this;
         }
-        return this;
-      }
-      /**
-       *
-       *
-       * 
-       * A list of visually detected tables on the page.
-       * 

-       *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.Table tables = 10;
-       */
-      public Builder addTables(
-          int index, com.google.cloud.documentai.v1beta2.Document.Page.Table value) {
-        if (tablesBuilder_ == null) {
-          if (value == null) {
-            throw new NullPointerException();
+
+        @java.lang.Override
+        public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+          return com.google.cloud.documentai.v1beta2.DocumentProto
+              .internal_static_google_cloud_documentai_v1beta2_Document_PageAnchor_PageRef_descriptor;
+        }
+
+        @java.lang.Override
+        public com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef
+            getDefaultInstanceForType() {
+          return com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef
+              .getDefaultInstance();
+        }
+
+        @java.lang.Override
+        public com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef build() {
+          com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef result = buildPartial();
+          if (!result.isInitialized()) {
+            throw newUninitializedMessageException(result);
           }
-          ensureTablesIsMutable();
-          tables_.add(index, value);
-          onChanged();
-        } else {
-          tablesBuilder_.addMessage(index, value);
+          return result;
         }
-        return this;
-      }
-      /**
-       *
-       *
-       * 
-       * A list of visually detected tables on the page.
-       * 

-       *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.Table tables = 10;
-       */
-      public Builder addTables(
-          com.google.cloud.documentai.v1beta2.Document.Page.Table.Builder builderForValue) {
-        if (tablesBuilder_ == null) {
-          ensureTablesIsMutable();
-          tables_.add(builderForValue.build());
-          onChanged();
-        } else {
-          tablesBuilder_.addMessage(builderForValue.build());
+
+        @java.lang.Override
+        public com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef buildPartial() {
+          com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef result =
+              new com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef(this);
+          if (bitField0_ != 0) {
+            buildPartial0(result);
+          }
+          onBuilt();
+          return result;
         }
-        return this;
-      }
-      /**
-       *
-       *
-       * 
-       * A list of visually detected tables on the page.
-       * 

-       *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.Table tables = 10;
-       */
-      public Builder addTables(
-          int index,
-          com.google.cloud.documentai.v1beta2.Document.Page.Table.Builder builderForValue) {
-        if (tablesBuilder_ == null) {
-          ensureTablesIsMutable();
-          tables_.add(index, builderForValue.build());
-          onChanged();
-        } else {
-          tablesBuilder_.addMessage(index, builderForValue.build());
+
+        private void buildPartial0(
+            com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef result) {
+          int from_bitField0_ = bitField0_;
+          if (((from_bitField0_ & 0x00000001) != 0)) {
+            result.page_ = page_;
+          }
+          if (((from_bitField0_ & 0x00000002) != 0)) {
+            result.layoutType_ = layoutType_;
+          }
+          if (((from_bitField0_ & 0x00000004) != 0)) {
+            result.layoutId_ = layoutId_;
+          }
+          if (((from_bitField0_ & 0x00000008) != 0)) {
+            result.boundingPoly_ =
+                boundingPolyBuilder_ == null ? boundingPoly_ : boundingPolyBuilder_.build();
+          }
+          if (((from_bitField0_ & 0x00000010) != 0)) {
+            result.confidence_ = confidence_;
+          }
         }
-        return this;
-      }
-      /**
-       *
-       *
-       * 
-       * A list of visually detected tables on the page.
-       * 

-       *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.Table tables = 10;
-       */
-      public Builder addAllTables(
-          java.lang.Iterable
-              values) {
-        if (tablesBuilder_ == null) {
-          ensureTablesIsMutable();
-          com.google.protobuf.AbstractMessageLite.Builder.addAll(values, tables_);
-          onChanged();
-        } else {
-          tablesBuilder_.addAllMessages(values);
+
+        @java.lang.Override
+        public Builder clone() {
+          return super.clone();
         }
-        return this;
-      }
-      /**
-       *
-       *
-       * 
-       * A list of visually detected tables on the page.
-       * 

-       *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.Table tables = 10;
-       */
-      public Builder clearTables() {
-        if (tablesBuilder_ == null) {
-          tables_ = java.util.Collections.emptyList();
-          bitField0_ = (bitField0_ & ~0x00000200);
-          onChanged();
-        } else {
-          tablesBuilder_.clear();
+
+        @java.lang.Override
+        public Builder setField(
+            com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+          return super.setField(field, value);
         }
-        return this;
-      }
-      /**
-       *
-       *
-       * 
-       * A list of visually detected tables on the page.
-       * 

-       *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.Table tables = 10;
-       */
-      public Builder removeTables(int index) {
-        if (tablesBuilder_ == null) {
-          ensureTablesIsMutable();
-          tables_.remove(index);
-          onChanged();
-        } else {
-          tablesBuilder_.remove(index);
+
+        @java.lang.Override
+        public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+          return super.clearField(field);
         }
-        return this;
-      }
-      /**
-       *
-       *
-       * 
-       * A list of visually detected tables on the page.
-       * 

-       *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.Table tables = 10;
-       */
-      public com.google.cloud.documentai.v1beta2.Document.Page.Table.Builder getTablesBuilder(
-          int index) {
-        return getTablesFieldBuilder().getBuilder(index);
-      }
-      /**
-       *
-       *
-       * 
-       * A list of visually detected tables on the page.
-       * 

-       *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.Table tables = 10;
-       */
-      public com.google.cloud.documentai.v1beta2.Document.Page.TableOrBuilder getTablesOrBuilder(
-          int index) {
-        if (tablesBuilder_ == null) {
-          return tables_.get(index);
-        } else {
-          return tablesBuilder_.getMessageOrBuilder(index);
+
+        @java.lang.Override
+        public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+          return super.clearOneof(oneof);
         }
-      }
-      /**
-       *
-       *
-       * 
-       * A list of visually detected tables on the page.
-       * 

-       *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.Table tables = 10;
-       */
-      public java.util.List<
-              ? extends com.google.cloud.documentai.v1beta2.Document.Page.TableOrBuilder>
-          getTablesOrBuilderList() {
-        if (tablesBuilder_ != null) {
-          return tablesBuilder_.getMessageOrBuilderList();
-        } else {
-          return java.util.Collections.unmodifiableList(tables_);
+
+        @java.lang.Override
+        public Builder setRepeatedField(
+            com.google.protobuf.Descriptors.FieldDescriptor field,
+            int index,
+            java.lang.Object value) {
+          return super.setRepeatedField(field, index, value);
         }
-      }
-      /**
-       *
-       *
-       * 
-       * A list of visually detected tables on the page.
-       * 

-       *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.Table tables = 10;
-       */
-      public com.google.cloud.documentai.v1beta2.Document.Page.Table.Builder addTablesBuilder() {
-        return getTablesFieldBuilder()
-            .addBuilder(
-                com.google.cloud.documentai.v1beta2.Document.Page.Table.getDefaultInstance());
-      }
-      /**
-       *
-       *
-       * 
-       * A list of visually detected tables on the page.
-       * 

-       *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.Table tables = 10;
-       */
-      public com.google.cloud.documentai.v1beta2.Document.Page.Table.Builder addTablesBuilder(
-          int index) {
-        return getTablesFieldBuilder()
-            .addBuilder(
-                index,
-                com.google.cloud.documentai.v1beta2.Document.Page.Table.getDefaultInstance());
-      }
-      /**
-       *
-       *
-       * 
-       * A list of visually detected tables on the page.
-       * 

-       *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.Table tables = 10;
-       */
-      public java.util.List
-          getTablesBuilderList() {
-        return getTablesFieldBuilder().getBuilderList();
-      }
 
-      private com.google.protobuf.RepeatedFieldBuilderV3<
-              com.google.cloud.documentai.v1beta2.Document.Page.Table,
-              com.google.cloud.documentai.v1beta2.Document.Page.Table.Builder,
-              com.google.cloud.documentai.v1beta2.Document.Page.TableOrBuilder>
-          getTablesFieldBuilder() {
-        if (tablesBuilder_ == null) {
-          tablesBuilder_ =
-              new com.google.protobuf.RepeatedFieldBuilderV3<
-                  com.google.cloud.documentai.v1beta2.Document.Page.Table,
-                  com.google.cloud.documentai.v1beta2.Document.Page.Table.Builder,
-                  com.google.cloud.documentai.v1beta2.Document.Page.TableOrBuilder>(
-                  tables_, ((bitField0_ & 0x00000200) != 0), getParentForChildren(), isClean());
-          tables_ = null;
+        @java.lang.Override
+        public Builder addRepeatedField(
+            com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+          return super.addRepeatedField(field, value);
         }
-        return tablesBuilder_;
-      }
 
-      private java.util.List
-          formFields_ = java.util.Collections.emptyList();
+        @java.lang.Override
+        public Builder mergeFrom(com.google.protobuf.Message other) {
+          if (other instanceof com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef) {
+            return mergeFrom(
+                (com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef) other);
+          } else {
+            super.mergeFrom(other);
+            return this;
+          }
+        }
 
-      private void ensureFormFieldsIsMutable() {
-        if (!((bitField0_ & 0x00000400) != 0)) {
-          formFields_ =
-              new java.util.ArrayList(
-                  formFields_);
-          bitField0_ |= 0x00000400;
+        public Builder mergeFrom(
+            com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef other) {
+          if (other
+              == com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef
+                  .getDefaultInstance()) return this;
+          if (other.getPage() != 0L) {
+            setPage(other.getPage());
+          }
+          if (other.layoutType_ != 0) {
+            setLayoutTypeValue(other.getLayoutTypeValue());
+          }
+          if (!other.getLayoutId().isEmpty()) {
+            layoutId_ = other.layoutId_;
+            bitField0_ |= 0x00000004;
+            onChanged();
+          }
+          if (other.hasBoundingPoly()) {
+            mergeBoundingPoly(other.getBoundingPoly());
+          }
+          if (other.getConfidence() != 0F) {
+            setConfidence(other.getConfidence());
+          }
+          this.mergeUnknownFields(other.getUnknownFields());
+          onChanged();
+          return this;
         }
-      }
 
-      private com.google.protobuf.RepeatedFieldBuilderV3<
-              com.google.cloud.documentai.v1beta2.Document.Page.FormField,
-              com.google.cloud.documentai.v1beta2.Document.Page.FormField.Builder,
-              com.google.cloud.documentai.v1beta2.Document.Page.FormFieldOrBuilder>
-          formFieldsBuilder_;
+        @java.lang.Override
+        public final boolean isInitialized() {
+          return true;
+        }
+
+        @java.lang.Override
+        public Builder mergeFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws java.io.IOException {
+          if (extensionRegistry == null) {
+            throw new java.lang.NullPointerException();
+          }
+          try {
+            boolean done = false;
+            while (!done) {
+              int tag = input.readTag();
+              switch (tag) {
+                case 0:
+                  done = true;
+                  break;
+                case 8:
+                  {
+                    page_ = input.readInt64();
+                    bitField0_ |= 0x00000001;
+                    break;
+                  } // case 8
+                case 16:
+                  {
+                    layoutType_ = input.readEnum();
+                    bitField0_ |= 0x00000002;
+                    break;
+                  } // case 16
+                case 26:
+                  {
+                    layoutId_ = input.readStringRequireUtf8();
+                    bitField0_ |= 0x00000004;
+                    break;
+                  } // case 26
+                case 34:
+                  {
+                    input.readMessage(
+                        getBoundingPolyFieldBuilder().getBuilder(), extensionRegistry);
+                    bitField0_ |= 0x00000008;
+                    break;
+                  } // case 34
+                case 45:
+                  {
+                    confidence_ = input.readFloat();
+                    bitField0_ |= 0x00000010;
+                    break;
+                  } // case 45
+                default:
+                  {
+                    if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                      done = true; // was an endgroup tag
+                    }
+                    break;
+                  } // default:
+              } // switch (tag)
+            } // while (!done)
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.unwrapIOException();
+          } finally {
+            onChanged();
+          } // finally
+          return this;
+        }
+
+        private int bitField0_;
+
+        private long page_;
+        /**
+         *
+         *
+         * 
+         * Required. Index into the
+         * [Document.pages][google.cloud.documentai.v1beta2.Document.pages]
+         * element, for example using
+         * `[Document.pages][page_refs.page]` to locate the related page element.
+         * This field is skipped when its value is the default `0`. See
+         * https://developers.google.com/protocol-buffers/docs/proto3#json.
+         * 

+         *
+         * int64 page = 1 [(.google.api.field_behavior) = REQUIRED];
+         *
+         * @return The page.
+         */
+        @java.lang.Override
+        public long getPage() {
+          return page_;
+        }
+        /**
+         *
+         *
+         * 
+         * Required. Index into the
+         * [Document.pages][google.cloud.documentai.v1beta2.Document.pages]
+         * element, for example using
+         * `[Document.pages][page_refs.page]` to locate the related page element.
+         * This field is skipped when its value is the default `0`. See
+         * https://developers.google.com/protocol-buffers/docs/proto3#json.
+         * 

+         *
+         * int64 page = 1 [(.google.api.field_behavior) = REQUIRED];
+         *
+         * @param value The page to set.
+         * @return This builder for chaining.
+         */
+        public Builder setPage(long value) {
+
+          page_ = value;
+          bitField0_ |= 0x00000001;
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * Required. Index into the
+         * [Document.pages][google.cloud.documentai.v1beta2.Document.pages]
+         * element, for example using
+         * `[Document.pages][page_refs.page]` to locate the related page element.
+         * This field is skipped when its value is the default `0`. See
+         * https://developers.google.com/protocol-buffers/docs/proto3#json.
+         * 

+         *
+         * int64 page = 1 [(.google.api.field_behavior) = REQUIRED];
+         *
+         * @return This builder for chaining.
+         */
+        public Builder clearPage() {
+          bitField0_ = (bitField0_ & ~0x00000001);
+          page_ = 0L;
+          onChanged();
+          return this;
+        }
 
-      /**
-       *
-       *
-       * 
-       * A list of visually detected form fields on the page.
-       * 

-       *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.FormField form_fields = 11;
-       * 
-       */
-      public java.util.List
-          getFormFieldsList() {
-        if (formFieldsBuilder_ == null) {
-          return java.util.Collections.unmodifiableList(formFields_);
-        } else {
-          return formFieldsBuilder_.getMessageList();
+        private int layoutType_ = 0;
+        /**
+         *
+         *
+         * 
+         * Optional. The type of the layout element that is being referenced if
+         * any.
+         * 

+         *
+         * 
+         * .google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef.LayoutType layout_type = 2 [(.google.api.field_behavior) = OPTIONAL];
+         * 
+         *
+         * @return The enum numeric value on the wire for layoutType.
+         */
+        @java.lang.Override
+        public int getLayoutTypeValue() {
+          return layoutType_;
         }
-      }
-      /**
-       *
-       *
-       * 
-       * A list of visually detected form fields on the page.
-       * 

-       *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.FormField form_fields = 11;
-       * 
-       */
-      public int getFormFieldsCount() {
-        if (formFieldsBuilder_ == null) {
-          return formFields_.size();
-        } else {
-          return formFieldsBuilder_.getCount();
+        /**
+         *
+         *
+         * 
+         * Optional. The type of the layout element that is being referenced if
+         * any.
+         * 

+         *
+         * 
+         * .google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef.LayoutType layout_type = 2 [(.google.api.field_behavior) = OPTIONAL];
+         * 
+         *
+         * @param value The enum numeric value on the wire for layoutType to set.
+         * @return This builder for chaining.
+         */
+        public Builder setLayoutTypeValue(int value) {
+          layoutType_ = value;
+          bitField0_ |= 0x00000002;
+          onChanged();
+          return this;
         }
-      }
-      /**
-       *
-       *
-       * 
-       * A list of visually detected form fields on the page.
-       * 

-       *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.FormField form_fields = 11;
-       * 
-       */
-      public com.google.cloud.documentai.v1beta2.Document.Page.FormField getFormFields(int index) {
-        if (formFieldsBuilder_ == null) {
-          return formFields_.get(index);
-        } else {
-          return formFieldsBuilder_.getMessage(index);
+        /**
+         *
+         *
+         * 
+         * Optional. The type of the layout element that is being referenced if
+         * any.
+         * 

+         *
+         * 
+         * .google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef.LayoutType layout_type = 2 [(.google.api.field_behavior) = OPTIONAL];
+         * 
+         *
+         * @return The layoutType.
+         */
+        @java.lang.Override
+        public com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef.LayoutType
+            getLayoutType() {
+          com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef.LayoutType result =
+              com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef.LayoutType.forNumber(
+                  layoutType_);
+          return result == null
+              ? com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef.LayoutType
+                  .UNRECOGNIZED
+              : result;
         }
-      }
-      /**
-       *
-       *
-       * 
-       * A list of visually detected form fields on the page.
-       * 

-       *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.FormField form_fields = 11;
-       * 
-       */
-      public Builder setFormFields(
-          int index, com.google.cloud.documentai.v1beta2.Document.Page.FormField value) {
-        if (formFieldsBuilder_ == null) {
+        /**
+         *
+         *
+         * 
+         * Optional. The type of the layout element that is being referenced if
+         * any.
+         * 

+         *
+         * 
+         * .google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef.LayoutType layout_type = 2 [(.google.api.field_behavior) = OPTIONAL];
+         * 
+         *
+         * @param value The layoutType to set.
+         * @return This builder for chaining.
+         */
+        public Builder setLayoutType(
+            com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef.LayoutType value) {
           if (value == null) {
             throw new NullPointerException();
           }
-          ensureFormFieldsIsMutable();
-          formFields_.set(index, value);
+          bitField0_ |= 0x00000002;
+          layoutType_ = value.getNumber();
           onChanged();
-        } else {
-          formFieldsBuilder_.setMessage(index, value);
+          return this;
         }
-        return this;
-      }
-      /**
-       *
-       *
-       * 
-       * A list of visually detected form fields on the page.
-       * 

-       *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.FormField form_fields = 11;
-       * 
-       */
-      public Builder setFormFields(
-          int index,
-          com.google.cloud.documentai.v1beta2.Document.Page.FormField.Builder builderForValue) {
-        if (formFieldsBuilder_ == null) {
-          ensureFormFieldsIsMutable();
-          formFields_.set(index, builderForValue.build());
+        /**
+         *
+         *
+         * 
+         * Optional. The type of the layout element that is being referenced if
+         * any.
+         * 

+         *
+         * 
+         * .google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef.LayoutType layout_type = 2 [(.google.api.field_behavior) = OPTIONAL];
+         * 
+         *
+         * @return This builder for chaining.
+         */
+        public Builder clearLayoutType() {
+          bitField0_ = (bitField0_ & ~0x00000002);
+          layoutType_ = 0;
           onChanged();
-        } else {
-          formFieldsBuilder_.setMessage(index, builderForValue.build());
+          return this;
         }
-        return this;
-      }
-      /**
-       *
-       *
-       * 
-       * A list of visually detected form fields on the page.
-       * 

-       *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.FormField form_fields = 11;
-       * 
-       */
-      public Builder addFormFields(
-          com.google.cloud.documentai.v1beta2.Document.Page.FormField value) {
-        if (formFieldsBuilder_ == null) {
+
+        private java.lang.Object layoutId_ = "";
+        /**
+         *
+         *
+         * 
+         * Optional. Deprecated.  Use
+         * [PageRef.bounding_poly][google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef.bounding_poly]
+         * instead.
+         * 

+         *
+         * string layout_id = 3 [deprecated = true, (.google.api.field_behavior) = OPTIONAL];
+         * 
+         *
+         * @deprecated google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef.layout_id is
+         *     deprecated. See google/cloud/documentai/v1beta2/document.proto;l=782
+         * @return The layoutId.
+         */
+        @java.lang.Deprecated
+        public java.lang.String getLayoutId() {
+          java.lang.Object ref = layoutId_;
+          if (!(ref instanceof java.lang.String)) {
+            com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+            java.lang.String s = bs.toStringUtf8();
+            layoutId_ = s;
+            return s;
+          } else {
+            return (java.lang.String) ref;
+          }
+        }
+        /**
+         *
+         *
+         * 
+         * Optional. Deprecated.  Use
+         * [PageRef.bounding_poly][google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef.bounding_poly]
+         * instead.
+         * 

+         *
+         * string layout_id = 3 [deprecated = true, (.google.api.field_behavior) = OPTIONAL];
+         * 
+         *
+         * @deprecated google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef.layout_id is
+         *     deprecated. See google/cloud/documentai/v1beta2/document.proto;l=782
+         * @return The bytes for layoutId.
+         */
+        @java.lang.Deprecated
+        public com.google.protobuf.ByteString getLayoutIdBytes() {
+          java.lang.Object ref = layoutId_;
+          if (ref instanceof String) {
+            com.google.protobuf.ByteString b =
+                com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+            layoutId_ = b;
+            return b;
+          } else {
+            return (com.google.protobuf.ByteString) ref;
+          }
+        }
+        /**
+         *
+         *
+         * 
+         * Optional. Deprecated.  Use
+         * [PageRef.bounding_poly][google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef.bounding_poly]
+         * instead.
+         * 

+         *
+         * string layout_id = 3 [deprecated = true, (.google.api.field_behavior) = OPTIONAL];
+         * 
+         *
+         * @deprecated google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef.layout_id is
+         *     deprecated. See google/cloud/documentai/v1beta2/document.proto;l=782
+         * @param value The layoutId to set.
+         * @return This builder for chaining.
+         */
+        @java.lang.Deprecated
+        public Builder setLayoutId(java.lang.String value) {
           if (value == null) {
             throw new NullPointerException();
           }
-          ensureFormFieldsIsMutable();
-          formFields_.add(value);
+          layoutId_ = value;
+          bitField0_ |= 0x00000004;
           onChanged();
-        } else {
-          formFieldsBuilder_.addMessage(value);
+          return this;
         }
-        return this;
-      }
-      /**
-       *
-       *
-       * 
-       * A list of visually detected form fields on the page.
-       * 

-       *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.FormField form_fields = 11;
-       * 
-       */
-      public Builder addFormFields(
-          int index, com.google.cloud.documentai.v1beta2.Document.Page.FormField value) {
-        if (formFieldsBuilder_ == null) {
+        /**
+         *
+         *
+         * 
+         * Optional. Deprecated.  Use
+         * [PageRef.bounding_poly][google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef.bounding_poly]
+         * instead.
+         * 

+         *
+         * string layout_id = 3 [deprecated = true, (.google.api.field_behavior) = OPTIONAL];
+         * 
+         *
+         * @deprecated google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef.layout_id is
+         *     deprecated. See google/cloud/documentai/v1beta2/document.proto;l=782
+         * @return This builder for chaining.
+         */
+        @java.lang.Deprecated
+        public Builder clearLayoutId() {
+          layoutId_ = getDefaultInstance().getLayoutId();
+          bitField0_ = (bitField0_ & ~0x00000004);
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * Optional. Deprecated.  Use
+         * [PageRef.bounding_poly][google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef.bounding_poly]
+         * instead.
+         * 

+         *
+         * string layout_id = 3 [deprecated = true, (.google.api.field_behavior) = OPTIONAL];
+         * 
+         *
+         * @deprecated google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef.layout_id is
+         *     deprecated. See google/cloud/documentai/v1beta2/document.proto;l=782
+         * @param value The bytes for layoutId to set.
+         * @return This builder for chaining.
+         */
+        @java.lang.Deprecated
+        public Builder setLayoutIdBytes(com.google.protobuf.ByteString value) {
           if (value == null) {
             throw new NullPointerException();
           }
-          ensureFormFieldsIsMutable();
-          formFields_.add(index, value);
+          checkByteStringIsUtf8(value);
+          layoutId_ = value;
+          bitField0_ |= 0x00000004;
           onChanged();
-        } else {
-          formFieldsBuilder_.addMessage(index, value);
+          return this;
         }
-        return this;
-      }
-      /**
-       *
-       *
-       * 
-       * A list of visually detected form fields on the page.
-       * 

-       *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.FormField form_fields = 11;
-       * 
-       */
-      public Builder addFormFields(
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-        if (formFieldsBuilder_ == null) {
-          ensureFormFieldsIsMutable();
-          formFields_.add(builderForValue.build());
-          onChanged();
-        } else {
-          formFieldsBuilder_.addMessage(builderForValue.build());
+
+        private com.google.cloud.documentai.v1beta2.BoundingPoly boundingPoly_;
+        private com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.documentai.v1beta2.BoundingPoly,
+                com.google.cloud.documentai.v1beta2.BoundingPoly.Builder,
+                com.google.cloud.documentai.v1beta2.BoundingPolyOrBuilder>
+            boundingPolyBuilder_;
+        /**
+         *
+         *
+         * 
+         * Optional. Identifies the bounding polygon of a layout element on the
+         * page.
+         * 

+         *
+         * 
+         * .google.cloud.documentai.v1beta2.BoundingPoly bounding_poly = 4 [(.google.api.field_behavior) = OPTIONAL];
+         * 
+         *
+         * @return Whether the boundingPoly field is set.
+         */
+        public boolean hasBoundingPoly() {
+          return ((bitField0_ & 0x00000008) != 0);
         }
-        return this;
-      }
-      /**
-       *
-       *
-       * 
-       * A list of visually detected form fields on the page.
-       * 

-       *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.FormField form_fields = 11;
-       * 
-       */
-      public Builder addFormFields(
-          int index,
-          com.google.cloud.documentai.v1beta2.Document.Page.FormField.Builder builderForValue) {
-        if (formFieldsBuilder_ == null) {
-          ensureFormFieldsIsMutable();
-          formFields_.add(index, builderForValue.build());
+        /**
+         *
+         *
+         * 
+         * Optional. Identifies the bounding polygon of a layout element on the
+         * page.
+         * 

+         *
+         * 
+         * .google.cloud.documentai.v1beta2.BoundingPoly bounding_poly = 4 [(.google.api.field_behavior) = OPTIONAL];
+         * 
+         *
+         * @return The boundingPoly.
+         */
+        public com.google.cloud.documentai.v1beta2.BoundingPoly getBoundingPoly() {
+          if (boundingPolyBuilder_ == null) {
+            return boundingPoly_ == null
+                ? com.google.cloud.documentai.v1beta2.BoundingPoly.getDefaultInstance()
+                : boundingPoly_;
+          } else {
+            return boundingPolyBuilder_.getMessage();
+          }
+        }
+        /**
+         *
+         *
+         * 
+         * Optional. Identifies the bounding polygon of a layout element on the
+         * page.
+         * 

+         *
+         * 
+         * .google.cloud.documentai.v1beta2.BoundingPoly bounding_poly = 4 [(.google.api.field_behavior) = OPTIONAL];
+         * 
+         */
+        public Builder setBoundingPoly(com.google.cloud.documentai.v1beta2.BoundingPoly value) {
+          if (boundingPolyBuilder_ == null) {
+            if (value == null) {
+              throw new NullPointerException();
+            }
+            boundingPoly_ = value;
+          } else {
+            boundingPolyBuilder_.setMessage(value);
+          }
+          bitField0_ |= 0x00000008;
           onChanged();
-        } else {
-          formFieldsBuilder_.addMessage(index, builderForValue.build());
+          return this;
         }
-        return this;
-      }
-      /**
-       *
-       *
-       * 
-       * A list of visually detected form fields on the page.
-       * 

-       *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.FormField form_fields = 11;
-       * 
-       */
-      public Builder addAllFormFields(
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-              values) {
-        if (formFieldsBuilder_ == null) {
-          ensureFormFieldsIsMutable();
-          com.google.protobuf.AbstractMessageLite.Builder.addAll(values, formFields_);
+        /**
+         *
+         *
+         * 
+         * Optional. Identifies the bounding polygon of a layout element on the
+         * page.
+         * 

+         *
+         * 
+         * .google.cloud.documentai.v1beta2.BoundingPoly bounding_poly = 4 [(.google.api.field_behavior) = OPTIONAL];
+         * 
+         */
+        public Builder setBoundingPoly(
+            com.google.cloud.documentai.v1beta2.BoundingPoly.Builder builderForValue) {
+          if (boundingPolyBuilder_ == null) {
+            boundingPoly_ = builderForValue.build();
+          } else {
+            boundingPolyBuilder_.setMessage(builderForValue.build());
+          }
+          bitField0_ |= 0x00000008;
           onChanged();
-        } else {
-          formFieldsBuilder_.addAllMessages(values);
+          return this;
         }
-        return this;
-      }
-      /**
-       *
-       *
-       * 
-       * A list of visually detected form fields on the page.
-       * 

-       *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.FormField form_fields = 11;
-       * 
-       */
-      public Builder clearFormFields() {
-        if (formFieldsBuilder_ == null) {
-          formFields_ = java.util.Collections.emptyList();
-          bitField0_ = (bitField0_ & ~0x00000400);
+        /**
+         *
+         *
+         * 
+         * Optional. Identifies the bounding polygon of a layout element on the
+         * page.
+         * 

+         *
+         * 
+         * .google.cloud.documentai.v1beta2.BoundingPoly bounding_poly = 4 [(.google.api.field_behavior) = OPTIONAL];
+         * 
+         */
+        public Builder mergeBoundingPoly(com.google.cloud.documentai.v1beta2.BoundingPoly value) {
+          if (boundingPolyBuilder_ == null) {
+            if (((bitField0_ & 0x00000008) != 0)
+                && boundingPoly_ != null
+                && boundingPoly_
+                    != com.google.cloud.documentai.v1beta2.BoundingPoly.getDefaultInstance()) {
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+          } else {
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+          }
+          bitField0_ |= 0x00000008;
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * Optional. Identifies the bounding polygon of a layout element on the
+         * page.
+         * 

+         *
+         * 
+         * .google.cloud.documentai.v1beta2.BoundingPoly bounding_poly = 4 [(.google.api.field_behavior) = OPTIONAL];
+         * 
+         */
+        public Builder clearBoundingPoly() {
+          bitField0_ = (bitField0_ & ~0x00000008);
+          boundingPoly_ = null;
+          if (boundingPolyBuilder_ != null) {
+            boundingPolyBuilder_.dispose();
+            boundingPolyBuilder_ = null;
+          }
           onChanged();
-        } else {
-          formFieldsBuilder_.clear();
+          return this;
         }
-        return this;
-      }
-      /**
-       *
-       *
-       * 
-       * A list of visually detected form fields on the page.
-       * 

-       *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.FormField form_fields = 11;
-       * 
-       */
-      public Builder removeFormFields(int index) {
-        if (formFieldsBuilder_ == null) {
-          ensureFormFieldsIsMutable();
-          formFields_.remove(index);
+        /**
+         *
+         *
+         * 
+         * Optional. Identifies the bounding polygon of a layout element on the
+         * page.
+         * 

+         *
+         * 
+         * .google.cloud.documentai.v1beta2.BoundingPoly bounding_poly = 4 [(.google.api.field_behavior) = OPTIONAL];
+         * 
+         */
+        public com.google.cloud.documentai.v1beta2.BoundingPoly.Builder getBoundingPolyBuilder() {
+          bitField0_ |= 0x00000008;
           onChanged();
-        } else {
-          formFieldsBuilder_.remove(index);
+          return getBoundingPolyFieldBuilder().getBuilder();
         }
-        return this;
-      }
-      /**
-       *
-       *
-       * 
-       * A list of visually detected form fields on the page.
-       * 

-       *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.FormField form_fields = 11;
-       * 
-       */
-      public com.google.cloud.documentai.v1beta2.Document.Page.FormField.Builder
-          getFormFieldsBuilder(int index) {
-        return getFormFieldsFieldBuilder().getBuilder(index);
-      }
-      /**
-       *
-       *
-       * 
-       * A list of visually detected form fields on the page.
-       * 

-       *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.FormField form_fields = 11;
-       * 
-       */
-      public com.google.cloud.documentai.v1beta2.Document.Page.FormFieldOrBuilder
-          getFormFieldsOrBuilder(int index) {
-        if (formFieldsBuilder_ == null) {
-          return formFields_.get(index);
-        } else {
-          return formFieldsBuilder_.getMessageOrBuilder(index);
+        /**
+         *
+         *
+         * 
+         * Optional. Identifies the bounding polygon of a layout element on the
+         * page.
+         * 

+         *
+         * 
+         * .google.cloud.documentai.v1beta2.BoundingPoly bounding_poly = 4 [(.google.api.field_behavior) = OPTIONAL];
+         * 
+         */
+        public com.google.cloud.documentai.v1beta2.BoundingPolyOrBuilder
+            getBoundingPolyOrBuilder() {
+          if (boundingPolyBuilder_ != null) {
+            return boundingPolyBuilder_.getMessageOrBuilder();
+          } else {
+            return boundingPoly_ == null
+                ? com.google.cloud.documentai.v1beta2.BoundingPoly.getDefaultInstance()
+                : boundingPoly_;
+          }
         }
-      }
-      /**
-       *
-       *
-       * 
-       * A list of visually detected form fields on the page.
-       * 

-       *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.FormField form_fields = 11;
-       * 
-       */
-      public java.util.List<
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-          getFormFieldsOrBuilderList() {
-        if (formFieldsBuilder_ != null) {
-          return formFieldsBuilder_.getMessageOrBuilderList();
-        } else {
-          return java.util.Collections.unmodifiableList(formFields_);
+        /**
+         *
+         *
+         * 
+         * Optional. Identifies the bounding polygon of a layout element on the
+         * page.
+         * 

+         *
+         * 
+         * .google.cloud.documentai.v1beta2.BoundingPoly bounding_poly = 4 [(.google.api.field_behavior) = OPTIONAL];
+         * 
+         */
+        private com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.documentai.v1beta2.BoundingPoly,
+                com.google.cloud.documentai.v1beta2.BoundingPoly.Builder,
+                com.google.cloud.documentai.v1beta2.BoundingPolyOrBuilder>
+            getBoundingPolyFieldBuilder() {
+          if (boundingPolyBuilder_ == null) {
+            boundingPolyBuilder_ =
+                new com.google.protobuf.SingleFieldBuilderV3<
+                    com.google.cloud.documentai.v1beta2.BoundingPoly,
+                    com.google.cloud.documentai.v1beta2.BoundingPoly.Builder,
+                    com.google.cloud.documentai.v1beta2.BoundingPolyOrBuilder>(
+                    getBoundingPoly(), getParentForChildren(), isClean());
+            boundingPoly_ = null;
+          }
+          return boundingPolyBuilder_;
         }
-      }
-      /**
-       *
-       *
-       * 
-       * A list of visually detected form fields on the page.
-       * 

-       *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.FormField form_fields = 11;
-       * 
-       */
-      public com.google.cloud.documentai.v1beta2.Document.Page.FormField.Builder
-          addFormFieldsBuilder() {
-        return getFormFieldsFieldBuilder()
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-      /**
-       *
-       *
-       * 
-       * A list of visually detected form fields on the page.
-       * 

-       *
-       * repeated .google.cloud.documentai.v1beta2.Document.Page.FormField form_fields = 11;
-       * 
-       */
-      public com.google.cloud.documentai.v1beta2.Document.Page.FormField.Builder
-          addFormFieldsBuilder(int index) {
-        return getFormFieldsFieldBuilder()
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-      /**
-       *
-       *
-       * 
-       * A list of visually detected form fields on the page.
-       * 

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-       * repeated .google.cloud.documentai.v1beta2.Document.Page.FormField form_fields = 11;
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-                  formFields_, ((bitField0_ & 0x00000400) != 0), getParentForChildren(), isClean());
-          formFields_ = null;
+        private float confidence_;
+        /**
+         *
+         *
+         * 
+         * Optional. Confidence of detected page element, if applicable. Range
+         * `[0, 1]`.
+         * 

+         *
+         * float confidence = 5 [(.google.api.field_behavior) = OPTIONAL];
+         *
+         * @return The confidence.
+         */
+        @java.lang.Override
+        public float getConfidence() {
+          return confidence_;
         }
-        return formFieldsBuilder_;
-      }
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-      @java.lang.Override
-      public final Builder setUnknownFields(
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-      @java.lang.Override
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-    public static com.google.cloud.documentai.v1beta2.Document.Page getDefaultInstance() {
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-    @java.lang.Override
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-    @java.lang.Override
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-    /**
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-     *
-     * 
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-     * Text anchor indexing into the [Document.text][google.cloud.documentai.v1beta2.Document.text].
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-     * Text anchor indexing into the [Document.text][google.cloud.documentai.v1beta2.Document.text].
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-    com.google.cloud.documentai.v1beta2.Document.TextAnchor getTextAnchor();
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-     *
-     * 
-     * Provenance of the entity.
-     * Text anchor indexing into the [Document.text][google.cloud.documentai.v1beta2.Document.text].
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-
-    /**
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-     *
-     * 
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-     * 

-     *
-     * string type = 2 [(.google.api.field_behavior) = REQUIRED];
-     *
-     * @return The type.
-     */
-    java.lang.String getType();
-    /**
-     *
-     *
-     * 
-     * Required. Entity type from a schema e.g. `Address`.
-     * 

-     *
-     * string type = 2 [(.google.api.field_behavior) = REQUIRED];
-     *
-     * @return The bytes for type.
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-    com.google.protobuf.ByteString getTypeBytes();
-
-    /**
-     *
-     *
-     * 
-     * Text value in the document e.g. `1600 Amphitheatre Pkwy`.
-     * 

-     *
-     * string mention_text = 3;
-     *
-     * @return The mentionText.
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-    java.lang.String getMentionText();
-    /**
-     *
-     *
-     * 
-     * Text value in the document e.g. `1600 Amphitheatre Pkwy`.
-     * 

-     *
-     * string mention_text = 3;
-     *
-     * @return The bytes for mentionText.
-     */
-    com.google.protobuf.ByteString getMentionTextBytes();
-
-    /**
-     *
-     *
-     * 
-     * Deprecated.  Use `id` field instead.
-     * 

-     *
-     * string mention_id = 4;
-     *
-     * @return The mentionId.
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-     *
-     * 
-     * Deprecated.  Use `id` field instead.
-     * 

-     *
-     * string mention_id = 4;
-     *
-     * @return The bytes for mentionId.
-     */
-    com.google.protobuf.ByteString getMentionIdBytes();
-
-    /**
-     *
-     *
-     * 
-     * Optional. Confidence of detected Schema entity. Range [0, 1].
-     * 

-     *
-     * float confidence = 5 [(.google.api.field_behavior) = OPTIONAL];
-     *
-     * @return The confidence.
-     */
-    float getConfidence();
-
-    /**
-     *
-     *
-     * 
-     * Optional. Represents the provenance of this entity wrt. the location on the
-     * page where it was found.
-     * 

-     *
-     * 
-     * .google.cloud.documentai.v1beta2.Document.PageAnchor page_anchor = 6 [(.google.api.field_behavior) = OPTIONAL];
-     * 
-     *
-     * @return Whether the pageAnchor field is set.
-     */
-    boolean hasPageAnchor();
-    /**
-     *
-     *
-     * 
-     * Optional. Represents the provenance of this entity wrt. the location on the
-     * page where it was found.
-     * 

-     *
-     * 
-     * .google.cloud.documentai.v1beta2.Document.PageAnchor page_anchor = 6 [(.google.api.field_behavior) = OPTIONAL];
-     * 
-     *
-     * @return The pageAnchor.
-     */
-    com.google.cloud.documentai.v1beta2.Document.PageAnchor getPageAnchor();
-    /**
-     *
-     *
-     * 
-     * Optional. Represents the provenance of this entity wrt. the location on the
-     * page where it was found.
-     * 

-     *
-     * 
-     * .google.cloud.documentai.v1beta2.Document.PageAnchor page_anchor = 6 [(.google.api.field_behavior) = OPTIONAL];
-     * 
-     */
-    com.google.cloud.documentai.v1beta2.Document.PageAnchorOrBuilder getPageAnchorOrBuilder();
-
-    /**
-     *
-     *
-     * 
-     * Optional. Canonical id. This will be a unique value in the entity list
-     * for this document.
-     * 

-     *
-     * string id = 7 [(.google.api.field_behavior) = OPTIONAL];
-     *
-     * @return The id.
-     */
-    java.lang.String getId();
-    /**
-     *
-     *
-     * 
-     * Optional. Canonical id. This will be a unique value in the entity list
-     * for this document.
-     * 

-     *
-     * string id = 7 [(.google.api.field_behavior) = OPTIONAL];
-     *
-     * @return The bytes for id.
-     */
-    com.google.protobuf.ByteString getIdBytes();
-  }
-  /**
-   *
-   *
-   * 
-   * A phrase in the text that is a known entity type, such as a person, an
-   * organization, or location.
-   * 

-   *
-   * Protobuf type {@code google.cloud.documentai.v1beta2.Document.Entity}
-   */
-  public static final class Entity extends com.google.protobuf.GeneratedMessageV3
-      implements
-      // @@protoc_insertion_point(message_implements:google.cloud.documentai.v1beta2.Document.Entity)
-      EntityOrBuilder {
-    private static final long serialVersionUID = 0L;
-    // Use Entity.newBuilder() to construct.
-    private Entity(com.google.protobuf.GeneratedMessageV3.Builder builder) {
-      super(builder);
-    }
-
-    private Entity() {
-      type_ = "";
-      mentionText_ = "";
-      mentionId_ = "";
-      id_ = "";
-    }
+        /**
+         *
+         *
+         * 
+         * Optional. Confidence of detected page element, if applicable. Range
+         * `[0, 1]`.
+         * 

+         *
+         * float confidence = 5 [(.google.api.field_behavior) = OPTIONAL];
+         *
+         * @param value The confidence to set.
+         * @return This builder for chaining.
+         */
+        public Builder setConfidence(float value) {
 
-    @java.lang.Override
-    @SuppressWarnings({"unused"})
-    protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
-      return new Entity();
-    }
+          confidence_ = value;
+          bitField0_ |= 0x00000010;
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * Optional. Confidence of detected page element, if applicable. Range
+         * `[0, 1]`.
+         * 

+         *
+         * float confidence = 5 [(.google.api.field_behavior) = OPTIONAL];
+         *
+         * @return This builder for chaining.
+         */
+        public Builder clearConfidence() {
+          bitField0_ = (bitField0_ & ~0x00000010);
+          confidence_ = 0F;
+          onChanged();
+          return this;
+        }
 
-    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
-      return com.google.cloud.documentai.v1beta2.DocumentProto
-          .internal_static_google_cloud_documentai_v1beta2_Document_Entity_descriptor;
-    }
+        @java.lang.Override
+        public final Builder setUnknownFields(
+            final com.google.protobuf.UnknownFieldSet unknownFields) {
+          return super.setUnknownFields(unknownFields);
+        }
 
-    @java.lang.Override
-    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
-        internalGetFieldAccessorTable() {
-      return com.google.cloud.documentai.v1beta2.DocumentProto
-          .internal_static_google_cloud_documentai_v1beta2_Document_Entity_fieldAccessorTable
-          .ensureFieldAccessorsInitialized(
-              com.google.cloud.documentai.v1beta2.Document.Entity.class,
-              com.google.cloud.documentai.v1beta2.Document.Entity.Builder.class);
-    }
+        @java.lang.Override
+        public final Builder mergeUnknownFields(
+            final com.google.protobuf.UnknownFieldSet unknownFields) {
+          return super.mergeUnknownFields(unknownFields);
+        }
 
-    public static final int TEXT_ANCHOR_FIELD_NUMBER = 1;
-    private com.google.cloud.documentai.v1beta2.Document.TextAnchor textAnchor_;
-    /**
-     *
-     *
-     * 
-     * Provenance of the entity.
-     * Text anchor indexing into the [Document.text][google.cloud.documentai.v1beta2.Document.text].
-     * 

-     *
-     * .google.cloud.documentai.v1beta2.Document.TextAnchor text_anchor = 1;
-     *
-     * @return Whether the textAnchor field is set.
-     */
-    @java.lang.Override
-    public boolean hasTextAnchor() {
-      return textAnchor_ != null;
-    }
-    /**
-     *
-     *
-     * 
-     * Provenance of the entity.
-     * Text anchor indexing into the [Document.text][google.cloud.documentai.v1beta2.Document.text].
-     * 

-     *
-     * .google.cloud.documentai.v1beta2.Document.TextAnchor text_anchor = 1;
-     *
-     * @return The textAnchor.
-     */
-    @java.lang.Override
-    public com.google.cloud.documentai.v1beta2.Document.TextAnchor getTextAnchor() {
-      return textAnchor_ == null
-          ? com.google.cloud.documentai.v1beta2.Document.TextAnchor.getDefaultInstance()
-          : textAnchor_;
-    }
-    /**
-     *
-     *
-     * 
-     * Provenance of the entity.
-     * Text anchor indexing into the [Document.text][google.cloud.documentai.v1beta2.Document.text].
-     * 

-     *
-     * .google.cloud.documentai.v1beta2.Document.TextAnchor text_anchor = 1;
-     */
-    @java.lang.Override
-    public com.google.cloud.documentai.v1beta2.Document.TextAnchorOrBuilder
-        getTextAnchorOrBuilder() {
-      return textAnchor_ == null
-          ? com.google.cloud.documentai.v1beta2.Document.TextAnchor.getDefaultInstance()
-          : textAnchor_;
-    }
+        // @@protoc_insertion_point(builder_scope:google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef)
+      }
 
-    public static final int TYPE_FIELD_NUMBER = 2;
+      // @@protoc_insertion_point(class_scope:google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef)
+      private static final com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef
+          DEFAULT_INSTANCE;
 
-    @SuppressWarnings("serial")
-    private volatile java.lang.Object type_ = "";
-    /**
-     *
-     *
-     * 
-     * Required. Entity type from a schema e.g. `Address`.
-     * 

-     *
-     * string type = 2 [(.google.api.field_behavior) = REQUIRED];
-     *
-     * @return The type.
-     */
-    @java.lang.Override
-    public java.lang.String getType() {
-      java.lang.Object ref = type_;
-      if (ref instanceof java.lang.String) {
-        return (java.lang.String) ref;
-      } else {
-        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
-        java.lang.String s = bs.toStringUtf8();
-        type_ = s;
-        return s;
+      static {
+        DEFAULT_INSTANCE = new com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef();
       }
-    }
-    /**
-     *
-     *
-     * 
-     * Required. Entity type from a schema e.g. `Address`.
-     * 

-     *
-     * string type = 2 [(.google.api.field_behavior) = REQUIRED];
-     *
-     * @return The bytes for type.
-     */
-    @java.lang.Override
-    public com.google.protobuf.ByteString getTypeBytes() {
-      java.lang.Object ref = type_;
-      if (ref instanceof java.lang.String) {
-        com.google.protobuf.ByteString b =
-            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
-        type_ = b;
-        return b;
-      } else {
-        return (com.google.protobuf.ByteString) ref;
+
+      public static com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef
+          getDefaultInstance() {
+        return DEFAULT_INSTANCE;
       }
-    }
 
-    public static final int MENTION_TEXT_FIELD_NUMBER = 3;
+      private static final com.google.protobuf.Parser PARSER =
+          new com.google.protobuf.AbstractParser() {
+            @java.lang.Override
+            public PageRef parsePartialFrom(
+                com.google.protobuf.CodedInputStream input,
+                com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+                throws com.google.protobuf.InvalidProtocolBufferException {
+              Builder builder = newBuilder();
+              try {
+                builder.mergeFrom(input, extensionRegistry);
+              } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+                throw e.setUnfinishedMessage(builder.buildPartial());
+              } catch (com.google.protobuf.UninitializedMessageException e) {
+                throw e.asInvalidProtocolBufferException()
+                    .setUnfinishedMessage(builder.buildPartial());
+              } catch (java.io.IOException e) {
+                throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                    .setUnfinishedMessage(builder.buildPartial());
+              }
+              return builder.buildPartial();
+            }
+          };
 
-    @SuppressWarnings("serial")
-    private volatile java.lang.Object mentionText_ = "";
-    /**
-     *
-     *
-     * 
-     * Text value in the document e.g. `1600 Amphitheatre Pkwy`.
-     * 

-     *
-     * string mention_text = 3;
-     *
-     * @return The mentionText.
-     */
-    @java.lang.Override
-    public java.lang.String getMentionText() {
-      java.lang.Object ref = mentionText_;
-      if (ref instanceof java.lang.String) {
-        return (java.lang.String) ref;
-      } else {
-        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
-        java.lang.String s = bs.toStringUtf8();
-        mentionText_ = s;
-        return s;
-      }
-    }
-    /**
-     *
-     *
-     * 
-     * Text value in the document e.g. `1600 Amphitheatre Pkwy`.
-     * 

-     *
-     * string mention_text = 3;
-     *
-     * @return The bytes for mentionText.
-     */
-    @java.lang.Override
-    public com.google.protobuf.ByteString getMentionTextBytes() {
-      java.lang.Object ref = mentionText_;
-      if (ref instanceof java.lang.String) {
-        com.google.protobuf.ByteString b =
-            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
-        mentionText_ = b;
-        return b;
-      } else {
-        return (com.google.protobuf.ByteString) ref;
+      public static com.google.protobuf.Parser parser() {
+        return PARSER;
       }
-    }
 
-    public static final int MENTION_ID_FIELD_NUMBER = 4;
-
-    @SuppressWarnings("serial")
-    private volatile java.lang.Object mentionId_ = "";
-    /**
-     *
-     *
-     * 
-     * Deprecated.  Use `id` field instead.
-     * 

-     *
-     * string mention_id = 4;
-     *
-     * @return The mentionId.
-     */
-    @java.lang.Override
-    public java.lang.String getMentionId() {
-      java.lang.Object ref = mentionId_;
-      if (ref instanceof java.lang.String) {
-        return (java.lang.String) ref;
-      } else {
-        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
-        java.lang.String s = bs.toStringUtf8();
-        mentionId_ = s;
-        return s;
+      @java.lang.Override
+      public com.google.protobuf.Parser getParserForType() {
+        return PARSER;
       }
-    }
-    /**
-     *
-     *
-     * 
-     * Deprecated.  Use `id` field instead.
-     * 

-     *
-     * string mention_id = 4;
-     *
-     * @return The bytes for mentionId.
-     */
-    @java.lang.Override
-    public com.google.protobuf.ByteString getMentionIdBytes() {
-      java.lang.Object ref = mentionId_;
-      if (ref instanceof java.lang.String) {
-        com.google.protobuf.ByteString b =
-            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
-        mentionId_ = b;
-        return b;
-      } else {
-        return (com.google.protobuf.ByteString) ref;
+
+      @java.lang.Override
+      public com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef
+          getDefaultInstanceForType() {
+        return DEFAULT_INSTANCE;
       }
     }
 
-    public static final int CONFIDENCE_FIELD_NUMBER = 5;
-    private float confidence_ = 0F;
-    /**
-     *
-     *
-     * 
-     * Optional. Confidence of detected Schema entity. Range [0, 1].
-     * 

-     *
-     * float confidence = 5 [(.google.api.field_behavior) = OPTIONAL];
-     *
-     * @return The confidence.
-     */
-    @java.lang.Override
-    public float getConfidence() {
-      return confidence_;
-    }
+    public static final int PAGE_REFS_FIELD_NUMBER = 1;
 
-    public static final int PAGE_ANCHOR_FIELD_NUMBER = 6;
-    private com.google.cloud.documentai.v1beta2.Document.PageAnchor pageAnchor_;
+    @SuppressWarnings("serial")
+    private java.util.List
+        pageRefs_;
     /**
      *
      *
      * 
-     * Optional. Represents the provenance of this entity wrt. the location on the
-     * page where it was found.
+     * One or more references to visual page elements
      * 

      *
-     * 
-     * .google.cloud.documentai.v1beta2.Document.PageAnchor page_anchor = 6 [(.google.api.field_behavior) = OPTIONAL];
+     * repeated .google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef page_refs = 1;
      * 
-     *
-     * @return Whether the pageAnchor field is set.
      */
     @java.lang.Override
-    public boolean hasPageAnchor() {
-      return pageAnchor_ != null;
+    public java.util.List
+        getPageRefsList() {
+      return pageRefs_;
     }
     /**
      *
      *
      * 
-     * Optional. Represents the provenance of this entity wrt. the location on the
-     * page where it was found.
+     * One or more references to visual page elements
      * 

      *
-     * 
-     * .google.cloud.documentai.v1beta2.Document.PageAnchor page_anchor = 6 [(.google.api.field_behavior) = OPTIONAL];
+     * repeated .google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef page_refs = 1;
      * 
-     *
-     * @return The pageAnchor.
      */
     @java.lang.Override
-    public com.google.cloud.documentai.v1beta2.Document.PageAnchor getPageAnchor() {
-      return pageAnchor_ == null
-          ? com.google.cloud.documentai.v1beta2.Document.PageAnchor.getDefaultInstance()
-          : pageAnchor_;
+    public java.util.List<
+            ? extends com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRefOrBuilder>
+        getPageRefsOrBuilderList() {
+      return pageRefs_;
     }
     /**
      *
      *
      * 
-     * Optional. Represents the provenance of this entity wrt. the location on the
-     * page where it was found.
+     * One or more references to visual page elements
      * 

      *
-     * 
-     * .google.cloud.documentai.v1beta2.Document.PageAnchor page_anchor = 6 [(.google.api.field_behavior) = OPTIONAL];
+     * repeated .google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef page_refs = 1;
      * 
      */
     @java.lang.Override
-    public com.google.cloud.documentai.v1beta2.Document.PageAnchorOrBuilder
-        getPageAnchorOrBuilder() {
-      return pageAnchor_ == null
-          ? com.google.cloud.documentai.v1beta2.Document.PageAnchor.getDefaultInstance()
-          : pageAnchor_;
+    public int getPageRefsCount() {
+      return pageRefs_.size();
     }
-
-    public static final int ID_FIELD_NUMBER = 7;
-
-    @SuppressWarnings("serial")
-    private volatile java.lang.Object id_ = "";
     /**
      *
      *
      * 
-     * Optional. Canonical id. This will be a unique value in the entity list
-     * for this document.
+     * One or more references to visual page elements
      * 

      *
-     * string id = 7 [(.google.api.field_behavior) = OPTIONAL];
-     *
-     * @return The id.
+     * repeated .google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef page_refs = 1;
+     * 
      */
     @java.lang.Override
-    public java.lang.String getId() {
-      java.lang.Object ref = id_;
-      if (ref instanceof java.lang.String) {
-        return (java.lang.String) ref;
-      } else {
-        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
-        java.lang.String s = bs.toStringUtf8();
-        id_ = s;
-        return s;
-      }
+    public com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef getPageRefs(int index) {
+      return pageRefs_.get(index);
     }
     /**
      *
      *
      * 
-     * Optional. Canonical id. This will be a unique value in the entity list
-     * for this document.
+     * One or more references to visual page elements
      * 

      *
-     * string id = 7 [(.google.api.field_behavior) = OPTIONAL];
-     *
-     * @return The bytes for id.
+     * repeated .google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef page_refs = 1;
+     * 
      */
     @java.lang.Override
-    public com.google.protobuf.ByteString getIdBytes() {
-      java.lang.Object ref = id_;
-      if (ref instanceof java.lang.String) {
-        com.google.protobuf.ByteString b =
-            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
-        id_ = b;
-        return b;
-      } else {
-        return (com.google.protobuf.ByteString) ref;
-      }
+    public com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRefOrBuilder
+        getPageRefsOrBuilder(int index) {
+      return pageRefs_.get(index);
     }
 
     private byte memoizedIsInitialized = -1;
@@ -31779,26 +57262,8 @@ public final boolean isInitialized() {
 
     @java.lang.Override
     public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
-      if (textAnchor_ != null) {
-        output.writeMessage(1, getTextAnchor());
-      }
-      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(type_)) {
-        com.google.protobuf.GeneratedMessageV3.writeString(output, 2, type_);
-      }
-      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(mentionText_)) {
-        com.google.protobuf.GeneratedMessageV3.writeString(output, 3, mentionText_);
-      }
-      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(mentionId_)) {
-        com.google.protobuf.GeneratedMessageV3.writeString(output, 4, mentionId_);
-      }
-      if (java.lang.Float.floatToRawIntBits(confidence_) != 0) {
-        output.writeFloat(5, confidence_);
-      }
-      if (pageAnchor_ != null) {
-        output.writeMessage(6, getPageAnchor());
-      }
-      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(id_)) {
-        com.google.protobuf.GeneratedMessageV3.writeString(output, 7, id_);
+      for (int i = 0; i < pageRefs_.size(); i++) {
+        output.writeMessage(1, pageRefs_.get(i));
       }
       getUnknownFields().writeTo(output);
     }
@@ -31809,26 +57274,8 @@ public int getSerializedSize() {
       if (size != -1) return size;
 
       size = 0;
-      if (textAnchor_ != null) {
-        size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, getTextAnchor());
-      }
-      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(type_)) {
-        size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, type_);
-      }
-      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(mentionText_)) {
-        size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, mentionText_);
-      }
-      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(mentionId_)) {
-        size += com.google.protobuf.GeneratedMessageV3.computeStringSize(4, mentionId_);
-      }
-      if (java.lang.Float.floatToRawIntBits(confidence_) != 0) {
-        size += com.google.protobuf.CodedOutputStream.computeFloatSize(5, confidence_);
-      }
-      if (pageAnchor_ != null) {
-        size += com.google.protobuf.CodedOutputStream.computeMessageSize(6, getPageAnchor());
-      }
-      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(id_)) {
-        size += com.google.protobuf.GeneratedMessageV3.computeStringSize(7, id_);
+      for (int i = 0; i < pageRefs_.size(); i++) {
+        size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, pageRefs_.get(i));
       }
       size += getUnknownFields().getSerializedSize();
       memoizedSize = size;
@@ -31840,26 +57287,13 @@ public boolean equals(final java.lang.Object obj) {
       if (obj == this) {
         return true;
       }
-      if (!(obj instanceof com.google.cloud.documentai.v1beta2.Document.Entity)) {
+      if (!(obj instanceof com.google.cloud.documentai.v1beta2.Document.PageAnchor)) {
         return super.equals(obj);
       }
-      com.google.cloud.documentai.v1beta2.Document.Entity other =
-          (com.google.cloud.documentai.v1beta2.Document.Entity) obj;
+      com.google.cloud.documentai.v1beta2.Document.PageAnchor other =
+          (com.google.cloud.documentai.v1beta2.Document.PageAnchor) obj;
 
-      if (hasTextAnchor() != other.hasTextAnchor()) return false;
-      if (hasTextAnchor()) {
-        if (!getTextAnchor().equals(other.getTextAnchor())) return false;
-      }
-      if (!getType().equals(other.getType())) return false;
-      if (!getMentionText().equals(other.getMentionText())) return false;
-      if (!getMentionId().equals(other.getMentionId())) return false;
-      if (java.lang.Float.floatToIntBits(getConfidence())
-          != java.lang.Float.floatToIntBits(other.getConfidence())) return false;
-      if (hasPageAnchor() != other.hasPageAnchor()) return false;
-      if (hasPageAnchor()) {
-        if (!getPageAnchor().equals(other.getPageAnchor())) return false;
-      }
-      if (!getId().equals(other.getId())) return false;
+      if (!getPageRefsList().equals(other.getPageRefsList())) return false;
       if (!getUnknownFields().equals(other.getUnknownFields())) return false;
       return true;
     }
@@ -31871,94 +57305,80 @@ public int hashCode() {
       }
       int hash = 41;
       hash = (19 * hash) + getDescriptor().hashCode();
-      if (hasTextAnchor()) {
-        hash = (37 * hash) + TEXT_ANCHOR_FIELD_NUMBER;
-        hash = (53 * hash) + getTextAnchor().hashCode();
-      }
-      hash = (37 * hash) + TYPE_FIELD_NUMBER;
-      hash = (53 * hash) + getType().hashCode();
-      hash = (37 * hash) + MENTION_TEXT_FIELD_NUMBER;
-      hash = (53 * hash) + getMentionText().hashCode();
-      hash = (37 * hash) + MENTION_ID_FIELD_NUMBER;
-      hash = (53 * hash) + getMentionId().hashCode();
-      hash = (37 * hash) + CONFIDENCE_FIELD_NUMBER;
-      hash = (53 * hash) + java.lang.Float.floatToIntBits(getConfidence());
-      if (hasPageAnchor()) {
-        hash = (37 * hash) + PAGE_ANCHOR_FIELD_NUMBER;
-        hash = (53 * hash) + getPageAnchor().hashCode();
+      if (getPageRefsCount() > 0) {
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+        hash = (53 * hash) + getPageRefsList().hashCode();
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-      hash = (53 * hash) + getId().hashCode();
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       memoizedHashCode = hash;
       return hash;
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-    public static com.google.cloud.documentai.v1beta2.Document.Entity parseFrom(
+    public static com.google.cloud.documentai.v1beta2.Document.PageAnchor parseFrom(
         java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
       return PARSER.parseFrom(data);
     }
 
-    public static com.google.cloud.documentai.v1beta2.Document.Entity parseFrom(
+    public static com.google.cloud.documentai.v1beta2.Document.PageAnchor parseFrom(
         java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws com.google.protobuf.InvalidProtocolBufferException {
       return PARSER.parseFrom(data, extensionRegistry);
     }
 
-    public static com.google.cloud.documentai.v1beta2.Document.Entity parseFrom(
+    public static com.google.cloud.documentai.v1beta2.Document.PageAnchor parseFrom(
         com.google.protobuf.ByteString data)
         throws com.google.protobuf.InvalidProtocolBufferException {
       return PARSER.parseFrom(data);
     }
 
-    public static com.google.cloud.documentai.v1beta2.Document.Entity parseFrom(
+    public static com.google.cloud.documentai.v1beta2.Document.PageAnchor parseFrom(
         com.google.protobuf.ByteString data,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws com.google.protobuf.InvalidProtocolBufferException {
       return PARSER.parseFrom(data, extensionRegistry);
     }
 
-    public static com.google.cloud.documentai.v1beta2.Document.Entity parseFrom(byte[] data)
+    public static com.google.cloud.documentai.v1beta2.Document.PageAnchor parseFrom(byte[] data)
         throws com.google.protobuf.InvalidProtocolBufferException {
       return PARSER.parseFrom(data);
     }
 
-    public static com.google.cloud.documentai.v1beta2.Document.Entity parseFrom(
+    public static com.google.cloud.documentai.v1beta2.Document.PageAnchor parseFrom(
         byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws com.google.protobuf.InvalidProtocolBufferException {
       return PARSER.parseFrom(data, extensionRegistry);
     }
 
-    public static com.google.cloud.documentai.v1beta2.Document.Entity parseFrom(
+    public static com.google.cloud.documentai.v1beta2.Document.PageAnchor parseFrom(
         java.io.InputStream input) throws java.io.IOException {
       return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
     }
 
-    public static com.google.cloud.documentai.v1beta2.Document.Entity parseFrom(
+    public static com.google.cloud.documentai.v1beta2.Document.PageAnchor parseFrom(
         java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
       return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
           PARSER, input, extensionRegistry);
     }
 
-    public static com.google.cloud.documentai.v1beta2.Document.Entity parseDelimitedFrom(
+    public static com.google.cloud.documentai.v1beta2.Document.PageAnchor parseDelimitedFrom(
         java.io.InputStream input) throws java.io.IOException {
       return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
     }
 
-    public static com.google.cloud.documentai.v1beta2.Document.Entity parseDelimitedFrom(
+    public static com.google.cloud.documentai.v1beta2.Document.PageAnchor parseDelimitedFrom(
         java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
       return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
           PARSER, input, extensionRegistry);
     }
 
-    public static com.google.cloud.documentai.v1beta2.Document.Entity parseFrom(
+    public static com.google.cloud.documentai.v1beta2.Document.PageAnchor parseFrom(
         com.google.protobuf.CodedInputStream input) throws java.io.IOException {
       return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
     }
 
-    public static com.google.cloud.documentai.v1beta2.Document.Entity parseFrom(
+    public static com.google.cloud.documentai.v1beta2.Document.PageAnchor parseFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
@@ -31976,7 +57396,7 @@ public static Builder newBuilder() {
     }
 
     public static Builder newBuilder(
-        com.google.cloud.documentai.v1beta2.Document.Entity prototype) {
+        com.google.cloud.documentai.v1beta2.Document.PageAnchor prototype) {
       return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
     }
 
@@ -31995,75 +57415,69 @@ protected Builder newBuilderForType(
      *
      *
      * 
-     * A phrase in the text that is a known entity type, such as a person, an
-     * organization, or location.
+     * Referencing the visual context of the entity in the
+     * [Document.pages][google.cloud.documentai.v1beta2.Document.pages]. Page
+     * anchors can be cross-page, consist of multiple bounding polygons and
+     * optionally reference specific layout element types.
      * 

      *
-     * Protobuf type {@code google.cloud.documentai.v1beta2.Document.Entity}
+     * Protobuf type {@code google.cloud.documentai.v1beta2.Document.PageAnchor}
      */
     public static final class Builder
         extends com.google.protobuf.GeneratedMessageV3.Builder
         implements
-        // @@protoc_insertion_point(builder_implements:google.cloud.documentai.v1beta2.Document.Entity)
-        com.google.cloud.documentai.v1beta2.Document.EntityOrBuilder {
+        // @@protoc_insertion_point(builder_implements:google.cloud.documentai.v1beta2.Document.PageAnchor)
+        com.google.cloud.documentai.v1beta2.Document.PageAnchorOrBuilder {
       public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
         return com.google.cloud.documentai.v1beta2.DocumentProto
-            .internal_static_google_cloud_documentai_v1beta2_Document_Entity_descriptor;
+            .internal_static_google_cloud_documentai_v1beta2_Document_PageAnchor_descriptor;
       }
 
       @java.lang.Override
       protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
           internalGetFieldAccessorTable() {
         return com.google.cloud.documentai.v1beta2.DocumentProto
-            .internal_static_google_cloud_documentai_v1beta2_Document_Entity_fieldAccessorTable
+            .internal_static_google_cloud_documentai_v1beta2_Document_PageAnchor_fieldAccessorTable
             .ensureFieldAccessorsInitialized(
-                com.google.cloud.documentai.v1beta2.Document.Entity.class,
-                com.google.cloud.documentai.v1beta2.Document.Entity.Builder.class);
-      }
-
-      // Construct using com.google.cloud.documentai.v1beta2.Document.Entity.newBuilder()
-      private Builder() {}
-
-      private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
-        super(parent);
+                com.google.cloud.documentai.v1beta2.Document.PageAnchor.class,
+                com.google.cloud.documentai.v1beta2.Document.PageAnchor.Builder.class);
       }
 
-      @java.lang.Override
-      public Builder clear() {
-        super.clear();
-        bitField0_ = 0;
-        textAnchor_ = null;
-        if (textAnchorBuilder_ != null) {
-          textAnchorBuilder_.dispose();
-          textAnchorBuilder_ = null;
-        }
-        type_ = "";
-        mentionText_ = "";
-        mentionId_ = "";
-        confidence_ = 0F;
-        pageAnchor_ = null;
-        if (pageAnchorBuilder_ != null) {
-          pageAnchorBuilder_.dispose();
-          pageAnchorBuilder_ = null;
+      // Construct using com.google.cloud.documentai.v1beta2.Document.PageAnchor.newBuilder()
+      private Builder() {}
+
+      private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+        super(parent);
+      }
+
+      @java.lang.Override
+      public Builder clear() {
+        super.clear();
+        bitField0_ = 0;
+        if (pageRefsBuilder_ == null) {
+          pageRefs_ = java.util.Collections.emptyList();
+        } else {
+          pageRefs_ = null;
+          pageRefsBuilder_.clear();
         }
-        id_ = "";
+        bitField0_ = (bitField0_ & ~0x00000001);
         return this;
       }
 
       @java.lang.Override
       public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
         return com.google.cloud.documentai.v1beta2.DocumentProto
-            .internal_static_google_cloud_documentai_v1beta2_Document_Entity_descriptor;
+            .internal_static_google_cloud_documentai_v1beta2_Document_PageAnchor_descriptor;
       }
 
       @java.lang.Override
-      public com.google.cloud.documentai.v1beta2.Document.Entity getDefaultInstanceForType() {
-        return com.google.cloud.documentai.v1beta2.Document.Entity.getDefaultInstance();
+      public com.google.cloud.documentai.v1beta2.Document.PageAnchor getDefaultInstanceForType() {
+        return com.google.cloud.documentai.v1beta2.Document.PageAnchor.getDefaultInstance();
       }
 
       @java.lang.Override
-      public com.google.cloud.documentai.v1beta2.Document.Entity build() {
-        com.google.cloud.documentai.v1beta2.Document.Entity result = buildPartial();
+      public com.google.cloud.documentai.v1beta2.Document.PageAnchor build() {
+        com.google.cloud.documentai.v1beta2.Document.PageAnchor result = buildPartial();
         if (!result.isInitialized()) {
           throw newUninitializedMessageException(result);
         }
@@ -32071,9 +57485,10 @@ public com.google.cloud.documentai.v1beta2.Document.Entity build() {
       }
 
       @java.lang.Override
-      public com.google.cloud.documentai.v1beta2.Document.Entity buildPartial() {
-        com.google.cloud.documentai.v1beta2.Document.Entity result =
-            new com.google.cloud.documentai.v1beta2.Document.Entity(this);
+      public com.google.cloud.documentai.v1beta2.Document.PageAnchor buildPartial() {
+        com.google.cloud.documentai.v1beta2.Document.PageAnchor result =
+            new com.google.cloud.documentai.v1beta2.Document.PageAnchor(this);
+        buildPartialRepeatedFields(result);
         if (bitField0_ != 0) {
           buildPartial0(result);
         }
@@ -32081,33 +57496,23 @@ public com.google.cloud.documentai.v1beta2.Document.Entity buildPartial() {
         return result;
       }
 
-      private void buildPartial0(com.google.cloud.documentai.v1beta2.Document.Entity result) {
-        int from_bitField0_ = bitField0_;
-        if (((from_bitField0_ & 0x00000001) != 0)) {
-          result.textAnchor_ =
-              textAnchorBuilder_ == null ? textAnchor_ : textAnchorBuilder_.build();
-        }
-        if (((from_bitField0_ & 0x00000002) != 0)) {
-          result.type_ = type_;
-        }
-        if (((from_bitField0_ & 0x00000004) != 0)) {
-          result.mentionText_ = mentionText_;
-        }
-        if (((from_bitField0_ & 0x00000008) != 0)) {
-          result.mentionId_ = mentionId_;
-        }
-        if (((from_bitField0_ & 0x00000010) != 0)) {
-          result.confidence_ = confidence_;
-        }
-        if (((from_bitField0_ & 0x00000020) != 0)) {
-          result.pageAnchor_ =
-              pageAnchorBuilder_ == null ? pageAnchor_ : pageAnchorBuilder_.build();
-        }
-        if (((from_bitField0_ & 0x00000040) != 0)) {
-          result.id_ = id_;
+      private void buildPartialRepeatedFields(
+          com.google.cloud.documentai.v1beta2.Document.PageAnchor result) {
+        if (pageRefsBuilder_ == null) {
+          if (((bitField0_ & 0x00000001) != 0)) {
+            pageRefs_ = java.util.Collections.unmodifiableList(pageRefs_);
+            bitField0_ = (bitField0_ & ~0x00000001);
+          }
+          result.pageRefs_ = pageRefs_;
+        } else {
+          result.pageRefs_ = pageRefsBuilder_.build();
         }
       }
 
+      private void buildPartial0(com.google.cloud.documentai.v1beta2.Document.PageAnchor result) {
+        int from_bitField0_ = bitField0_;
+      }
+
       @java.lang.Override
       public Builder clone() {
         return super.clone();
@@ -32138,1032 +57543,497 @@ public Builder setRepeatedField(
       }
 
       @java.lang.Override
-      public Builder addRepeatedField(
-          com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
-        return super.addRepeatedField(field, value);
-      }
-
-      @java.lang.Override
-      public Builder mergeFrom(com.google.protobuf.Message other) {
-        if (other instanceof com.google.cloud.documentai.v1beta2.Document.Entity) {
-          return mergeFrom((com.google.cloud.documentai.v1beta2.Document.Entity) other);
-        } else {
-          super.mergeFrom(other);
-          return this;
-        }
-      }
-
-      public Builder mergeFrom(com.google.cloud.documentai.v1beta2.Document.Entity other) {
-        if (other == com.google.cloud.documentai.v1beta2.Document.Entity.getDefaultInstance())
-          return this;
-        if (other.hasTextAnchor()) {
-          mergeTextAnchor(other.getTextAnchor());
-        }
-        if (!other.getType().isEmpty()) {
-          type_ = other.type_;
-          bitField0_ |= 0x00000002;
-          onChanged();
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-        if (!other.getMentionText().isEmpty()) {
-          mentionText_ = other.mentionText_;
-          bitField0_ |= 0x00000004;
-          onChanged();
-        }
-        if (!other.getMentionId().isEmpty()) {
-          mentionId_ = other.mentionId_;
-          bitField0_ |= 0x00000008;
-          onChanged();
-        }
-        if (other.getConfidence() != 0F) {
-          setConfidence(other.getConfidence());
-        }
-        if (other.hasPageAnchor()) {
-          mergePageAnchor(other.getPageAnchor());
-        }
-        if (!other.getId().isEmpty()) {
-          id_ = other.id_;
-          bitField0_ |= 0x00000040;
-          onChanged();
-        }
-        this.mergeUnknownFields(other.getUnknownFields());
-        onChanged();
-        return this;
-      }
-
-      @java.lang.Override
-      public final boolean isInitialized() {
-        return true;
-      }
-
-      @java.lang.Override
-      public Builder mergeFrom(
-          com.google.protobuf.CodedInputStream input,
-          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-          throws java.io.IOException {
-        if (extensionRegistry == null) {
-          throw new java.lang.NullPointerException();
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-                break;
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-                  bitField0_ |= 0x00000001;
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-                  bitField0_ |= 0x00000002;
-                  break;
-                } // case 18
-              case 26:
-                {
-                  mentionText_ = input.readStringRequireUtf8();
-                  bitField0_ |= 0x00000004;
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-                  mentionId_ = input.readStringRequireUtf8();
-                  bitField0_ |= 0x00000008;
-                  break;
-                } // case 34
-              case 45:
-                {
-                  confidence_ = input.readFloat();
-                  bitField0_ |= 0x00000010;
-                  break;
-                } // case 45
-              case 50:
-                {
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-                  bitField0_ |= 0x00000020;
-                  break;
-                } // case 50
-              case 58:
-                {
-                  id_ = input.readStringRequireUtf8();
-                  bitField0_ |= 0x00000040;
-                  break;
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-          } // while (!done)
-        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-          throw e.unwrapIOException();
-        } finally {
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-        } // finally
-        return this;
-      }
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-      private int bitField0_;
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-      private com.google.cloud.documentai.v1beta2.Document.TextAnchor textAnchor_;
-      private com.google.protobuf.SingleFieldBuilderV3<
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-              com.google.cloud.documentai.v1beta2.Document.TextAnchor.Builder,
-              com.google.cloud.documentai.v1beta2.Document.TextAnchorOrBuilder>
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-      /**
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-       * 
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-       * Text anchor indexing into the [Document.text][google.cloud.documentai.v1beta2.Document.text].
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-       *
-       * .google.cloud.documentai.v1beta2.Document.TextAnchor text_anchor = 1;
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-      public boolean hasTextAnchor() {
-        return ((bitField0_ & 0x00000001) != 0);
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-      /**
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-       *
-       * 
-       * Provenance of the entity.
-       * Text anchor indexing into the [Document.text][google.cloud.documentai.v1beta2.Document.text].
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-       *
-       * .google.cloud.documentai.v1beta2.Document.TextAnchor text_anchor = 1;
-       *
-       * @return The textAnchor.
-       */
-      public com.google.cloud.documentai.v1beta2.Document.TextAnchor getTextAnchor() {
-        if (textAnchorBuilder_ == null) {
-          return textAnchor_ == null
-              ? com.google.cloud.documentai.v1beta2.Document.TextAnchor.getDefaultInstance()
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-      /**
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-       *
-       * 
-       * Provenance of the entity.
-       * Text anchor indexing into the [Document.text][google.cloud.documentai.v1beta2.Document.text].
-       * 

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-      public Builder setTextAnchor(com.google.cloud.documentai.v1beta2.Document.TextAnchor value) {
-        if (textAnchorBuilder_ == null) {
-          if (value == null) {
-            throw new NullPointerException();
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-          textAnchor_ = value;
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-        bitField0_ |= 0x00000001;
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-       * 
-       * Provenance of the entity.
-       * Text anchor indexing into the [Document.text][google.cloud.documentai.v1beta2.Document.text].
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-       *
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-       */
-      public Builder setTextAnchor(
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-        if (textAnchorBuilder_ == null) {
-          textAnchor_ = builderForValue.build();
-        } else {
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-        bitField0_ |= 0x00000001;
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-      /**
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-       * Provenance of the entity.
-       * Text anchor indexing into the [Document.text][google.cloud.documentai.v1beta2.Document.text].
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-       *
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-      public Builder mergeTextAnchor(
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-        if (textAnchorBuilder_ == null) {
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-        bitField0_ |= 0x00000001;
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-      public Builder clearTextAnchor() {
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-        textAnchor_ = null;
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-          textAnchorBuilder_.dispose();
-          textAnchorBuilder_ = null;
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-      private com.google.protobuf.SingleFieldBuilderV3<
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-          return s;
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-          return (java.lang.String) ref;
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-       * 

-       *
-       * string type = 2 [(.google.api.field_behavior) = REQUIRED];
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+
+      @java.lang.Override
+      public Builder mergeFrom(com.google.protobuf.Message other) {
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-      public Builder setMentionText(java.lang.String value) {
-        if (value == null) {
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+      public Builder mergeFrom(com.google.cloud.documentai.v1beta2.Document.PageAnchor other) {
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-        mentionText_ = getDefaultInstance().getMentionText();
-        bitField0_ = (bitField0_ & ~0x00000004);
-        onChanged();
-        return this;
+
+      @java.lang.Override
+      public final boolean isInitialized() {
+        return true;
       }
-      /**
-       *
-       *
-       * 
-       * Text value in the document e.g. `1600 Amphitheatre Pkwy`.
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-       * @return This builder for chaining.
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-      public Builder setMentionTextBytes(com.google.protobuf.ByteString value) {
-        if (value == null) {
-          throw new NullPointerException();
+
+      @java.lang.Override
+      public Builder mergeFrom(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+        if (extensionRegistry == null) {
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-        checkByteStringIsUtf8(value);
-        mentionText_ = value;
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+                  if (pageRefsBuilder_ == null) {
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+                    pageRefs_.add(m);
+                  } else {
+                    pageRefsBuilder_.addMessage(m);
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-          java.lang.String s = bs.toStringUtf8();
-          mentionId_ = s;
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+      private int bitField0_;
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+      private java.util.List
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+      private void ensurePageRefsIsMutable() {
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+          bitField0_ |= 0x00000001;
         }
       }
+
+      private com.google.protobuf.RepeatedFieldBuilderV3<
+              com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef,
+              com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef.Builder,
+              com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRefOrBuilder>
+          pageRefsBuilder_;
+
       /**
        *
        *
        * 
-       * Deprecated.  Use `id` field instead.
+       * One or more references to visual page elements
        * 

        *
-       * string mention_id = 4;
-       *
-       * @return The bytes for mentionId.
+       * repeated .google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef page_refs = 1;
+       * 
        */
-      public com.google.protobuf.ByteString getMentionIdBytes() {
-        java.lang.Object ref = mentionId_;
-        if (ref instanceof String) {
-          com.google.protobuf.ByteString b =
-              com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
-          mentionId_ = b;
-          return b;
+      public java.util.List
+          getPageRefsList() {
+        if (pageRefsBuilder_ == null) {
+          return java.util.Collections.unmodifiableList(pageRefs_);
         } else {
-          return (com.google.protobuf.ByteString) ref;
+          return pageRefsBuilder_.getMessageList();
         }
       }
       /**
        *
        *
        * 
-       * Deprecated.  Use `id` field instead.
+       * One or more references to visual page elements
        * 

        *
-       * string mention_id = 4;
-       *
-       * @param value The mentionId to set.
-       * @return This builder for chaining.
+       * repeated .google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef page_refs = 1;
+       * 
        */
-      public Builder setMentionId(java.lang.String value) {
-        if (value == null) {
-          throw new NullPointerException();
+      public int getPageRefsCount() {
+        if (pageRefsBuilder_ == null) {
+          return pageRefs_.size();
+        } else {
+          return pageRefsBuilder_.getCount();
         }
-        mentionId_ = value;
-        bitField0_ |= 0x00000008;
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-        return this;
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-      /**
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-       *
-       * 
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-      public Builder clearMentionId() {
-        mentionId_ = getDefaultInstance().getMentionId();
-        bitField0_ = (bitField0_ & ~0x00000008);
-        onChanged();
-        return this;
       }
       /**
        *
        *
        * 
-       * Deprecated.  Use `id` field instead.
+       * One or more references to visual page elements
        * 

        *
-       * string mention_id = 4;
-       *
-       * @param value The bytes for mentionId to set.
-       * @return This builder for chaining.
+       * repeated .google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef page_refs = 1;
+       * 
        */
-      public Builder setMentionIdBytes(com.google.protobuf.ByteString value) {
-        if (value == null) {
-          throw new NullPointerException();
+      public com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef getPageRefs(
+          int index) {
+        if (pageRefsBuilder_ == null) {
+          return pageRefs_.get(index);
+        } else {
+          return pageRefsBuilder_.getMessage(index);
         }
-        checkByteStringIsUtf8(value);
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-        return this;
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-
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-       *
-       * @return The confidence.
-       */
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-      public float getConfidence() {
-        return confidence_;
-      }
-      /**
-       *
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-       * Optional. Confidence of detected Schema entity. Range [0, 1].
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-       *
-       * float confidence = 5 [(.google.api.field_behavior) = OPTIONAL];
-       *
-       * @param value The confidence to set.
-       * @return This builder for chaining.
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-      public Builder setConfidence(float value) {
-
-        confidence_ = value;
-        bitField0_ |= 0x00000010;
-        onChanged();
-        return this;
       }
       /**
        *
        *
        * 
-       * Optional. Confidence of detected Schema entity. Range [0, 1].
+       * One or more references to visual page elements
        * 

        *
-       * float confidence = 5 [(.google.api.field_behavior) = OPTIONAL];
-       *
-       * @return This builder for chaining.
+       * repeated .google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef page_refs = 1;
+       * 
        */
-      public Builder clearConfidence() {
-        bitField0_ = (bitField0_ & ~0x00000010);
-        confidence_ = 0F;
-        onChanged();
+      public Builder setPageRefs(
+          int index, com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef value) {
+        if (pageRefsBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          ensurePageRefsIsMutable();
+          pageRefs_.set(index, value);
+          onChanged();
+        } else {
+          pageRefsBuilder_.setMessage(index, value);
+        }
         return this;
       }
-
-      private com.google.cloud.documentai.v1beta2.Document.PageAnchor pageAnchor_;
-      private com.google.protobuf.SingleFieldBuilderV3<
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-              com.google.cloud.documentai.v1beta2.Document.PageAnchor.Builder,
-              com.google.cloud.documentai.v1beta2.Document.PageAnchorOrBuilder>
-          pageAnchorBuilder_;
       /**
        *
        *
        * 
-       * Optional. Represents the provenance of this entity wrt. the location on the
-       * page where it was found.
+       * One or more references to visual page elements
        * 

        *
-       * 
-       * .google.cloud.documentai.v1beta2.Document.PageAnchor page_anchor = 6 [(.google.api.field_behavior) = OPTIONAL];
+       * repeated .google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef page_refs = 1;
        * 
-       *
-       * @return Whether the pageAnchor field is set.
        */
-      public boolean hasPageAnchor() {
-        return ((bitField0_ & 0x00000020) != 0);
+      public Builder setPageRefs(
+          int index,
+          com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef.Builder builderForValue) {
+        if (pageRefsBuilder_ == null) {
+          ensurePageRefsIsMutable();
+          pageRefs_.set(index, builderForValue.build());
+          onChanged();
+        } else {
+          pageRefsBuilder_.setMessage(index, builderForValue.build());
+        }
+        return this;
       }
       /**
        *
        *
        * 
-       * Optional. Represents the provenance of this entity wrt. the location on the
-       * page where it was found.
+       * One or more references to visual page elements
        * 

        *
-       * 
-       * .google.cloud.documentai.v1beta2.Document.PageAnchor page_anchor = 6 [(.google.api.field_behavior) = OPTIONAL];
+       * repeated .google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef page_refs = 1;
        * 
-       *
-       * @return The pageAnchor.
        */
-      public com.google.cloud.documentai.v1beta2.Document.PageAnchor getPageAnchor() {
-        if (pageAnchorBuilder_ == null) {
-          return pageAnchor_ == null
-              ? com.google.cloud.documentai.v1beta2.Document.PageAnchor.getDefaultInstance()
-              : pageAnchor_;
+      public Builder addPageRefs(
+          com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef value) {
+        if (pageRefsBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          ensurePageRefsIsMutable();
+          pageRefs_.add(value);
+          onChanged();
         } else {
-          return pageAnchorBuilder_.getMessage();
+          pageRefsBuilder_.addMessage(value);
         }
+        return this;
       }
       /**
        *
        *
        * 
-       * Optional. Represents the provenance of this entity wrt. the location on the
-       * page where it was found.
+       * One or more references to visual page elements
        * 

        *
-       * 
-       * .google.cloud.documentai.v1beta2.Document.PageAnchor page_anchor = 6 [(.google.api.field_behavior) = OPTIONAL];
+       * repeated .google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef page_refs = 1;
        * 
        */
-      public Builder setPageAnchor(com.google.cloud.documentai.v1beta2.Document.PageAnchor value) {
-        if (pageAnchorBuilder_ == null) {
+      public Builder addPageRefs(
+          int index, com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef value) {
+        if (pageRefsBuilder_ == null) {
           if (value == null) {
             throw new NullPointerException();
           }
-          pageAnchor_ = value;
+          ensurePageRefsIsMutable();
+          pageRefs_.add(index, value);
+          onChanged();
         } else {
-          pageAnchorBuilder_.setMessage(value);
+          pageRefsBuilder_.addMessage(index, value);
         }
-        bitField0_ |= 0x00000020;
-        onChanged();
         return this;
       }
       /**
        *
        *
        * 
-       * Optional. Represents the provenance of this entity wrt. the location on the
-       * page where it was found.
+       * One or more references to visual page elements
        * 

        *
-       * 
-       * .google.cloud.documentai.v1beta2.Document.PageAnchor page_anchor = 6 [(.google.api.field_behavior) = OPTIONAL];
+       * repeated .google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef page_refs = 1;
        * 
        */
-      public Builder setPageAnchor(
-          com.google.cloud.documentai.v1beta2.Document.PageAnchor.Builder builderForValue) {
-        if (pageAnchorBuilder_ == null) {
-          pageAnchor_ = builderForValue.build();
+      public Builder addPageRefs(
+          com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef.Builder builderForValue) {
+        if (pageRefsBuilder_ == null) {
+          ensurePageRefsIsMutable();
+          pageRefs_.add(builderForValue.build());
+          onChanged();
         } else {
-          pageAnchorBuilder_.setMessage(builderForValue.build());
+          pageRefsBuilder_.addMessage(builderForValue.build());
         }
-        bitField0_ |= 0x00000020;
-        onChanged();
         return this;
       }
       /**
        *
        *
        * 
-       * Optional. Represents the provenance of this entity wrt. the location on the
-       * page where it was found.
+       * One or more references to visual page elements
        * 

        *
-       * 
-       * .google.cloud.documentai.v1beta2.Document.PageAnchor page_anchor = 6 [(.google.api.field_behavior) = OPTIONAL];
+       * repeated .google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef page_refs = 1;
        * 
        */
-      public Builder mergePageAnchor(
-          com.google.cloud.documentai.v1beta2.Document.PageAnchor value) {
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-            getPageAnchorBuilder().mergeFrom(value);
-          } else {
-            pageAnchor_ = value;
-          }
+      public Builder addPageRefs(
+          int index,
+          com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef.Builder builderForValue) {
+        if (pageRefsBuilder_ == null) {
+          ensurePageRefsIsMutable();
+          pageRefs_.add(index, builderForValue.build());
+          onChanged();
         } else {
-          pageAnchorBuilder_.mergeFrom(value);
+          pageRefsBuilder_.addMessage(index, builderForValue.build());
         }
-        bitField0_ |= 0x00000020;
-        onChanged();
         return this;
       }
       /**
        *
        *
        * 
-       * Optional. Represents the provenance of this entity wrt. the location on the
-       * page where it was found.
+       * One or more references to visual page elements
        * 

        *
-       * 
-       * .google.cloud.documentai.v1beta2.Document.PageAnchor page_anchor = 6 [(.google.api.field_behavior) = OPTIONAL];
+       * repeated .google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef page_refs = 1;
        * 
        */
-      public Builder clearPageAnchor() {
-        bitField0_ = (bitField0_ & ~0x00000020);
-        pageAnchor_ = null;
-        if (pageAnchorBuilder_ != null) {
-          pageAnchorBuilder_.dispose();
-          pageAnchorBuilder_ = null;
+      public Builder addAllPageRefs(
+          java.lang.Iterable<
+                  ? extends com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef>
+              values) {
+        if (pageRefsBuilder_ == null) {
+          ensurePageRefsIsMutable();
+          com.google.protobuf.AbstractMessageLite.Builder.addAll(values, pageRefs_);
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+        } else {
+          pageRefsBuilder_.addAllMessages(values);
         }
-        onChanged();
         return this;
       }
       /**
        *
        *
        * 
-       * Optional. Represents the provenance of this entity wrt. the location on the
-       * page where it was found.
+       * One or more references to visual page elements
        * 

        *
-       * 
-       * .google.cloud.documentai.v1beta2.Document.PageAnchor page_anchor = 6 [(.google.api.field_behavior) = OPTIONAL];
+       * repeated .google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef page_refs = 1;
        * 
        */
-      public com.google.cloud.documentai.v1beta2.Document.PageAnchor.Builder
-          getPageAnchorBuilder() {
-        bitField0_ |= 0x00000020;
-        onChanged();
-        return getPageAnchorFieldBuilder().getBuilder();
+      public Builder clearPageRefs() {
+        if (pageRefsBuilder_ == null) {
+          pageRefs_ = java.util.Collections.emptyList();
+          bitField0_ = (bitField0_ & ~0x00000001);
+          onChanged();
+        } else {
+          pageRefsBuilder_.clear();
+        }
+        return this;
       }
       /**
        *
        *
        * 
-       * Optional. Represents the provenance of this entity wrt. the location on the
-       * page where it was found.
+       * One or more references to visual page elements
        * 

        *
-       * 
-       * .google.cloud.documentai.v1beta2.Document.PageAnchor page_anchor = 6 [(.google.api.field_behavior) = OPTIONAL];
+       * repeated .google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef page_refs = 1;
        * 
        */
-      public com.google.cloud.documentai.v1beta2.Document.PageAnchorOrBuilder
-          getPageAnchorOrBuilder() {
-        if (pageAnchorBuilder_ != null) {
-          return pageAnchorBuilder_.getMessageOrBuilder();
+      public Builder removePageRefs(int index) {
+        if (pageRefsBuilder_ == null) {
+          ensurePageRefsIsMutable();
+          pageRefs_.remove(index);
+          onChanged();
         } else {
-          return pageAnchor_ == null
-              ? com.google.cloud.documentai.v1beta2.Document.PageAnchor.getDefaultInstance()
-              : pageAnchor_;
+          pageRefsBuilder_.remove(index);
         }
+        return this;
       }
       /**
        *
        *
        * 
-       * Optional. Represents the provenance of this entity wrt. the location on the
-       * page where it was found.
+       * One or more references to visual page elements
        * 

        *
-       * 
-       * .google.cloud.documentai.v1beta2.Document.PageAnchor page_anchor = 6 [(.google.api.field_behavior) = OPTIONAL];
+       * repeated .google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef page_refs = 1;
        * 
        */
-      private com.google.protobuf.SingleFieldBuilderV3<
-              com.google.cloud.documentai.v1beta2.Document.PageAnchor,
-              com.google.cloud.documentai.v1beta2.Document.PageAnchor.Builder,
-              com.google.cloud.documentai.v1beta2.Document.PageAnchorOrBuilder>
-          getPageAnchorFieldBuilder() {
-        if (pageAnchorBuilder_ == null) {
-          pageAnchorBuilder_ =
-              new com.google.protobuf.SingleFieldBuilderV3<
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-                  com.google.cloud.documentai.v1beta2.Document.PageAnchor.Builder,
-                  com.google.cloud.documentai.v1beta2.Document.PageAnchorOrBuilder>(
-                  getPageAnchor(), getParentForChildren(), isClean());
-          pageAnchor_ = null;
-        }
-        return pageAnchorBuilder_;
+      public com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef.Builder
+          getPageRefsBuilder(int index) {
+        return getPageRefsFieldBuilder().getBuilder(index);
       }
-
-      private java.lang.Object id_ = "";
       /**
        *
        *
        * 
-       * Optional. Canonical id. This will be a unique value in the entity list
-       * for this document.
+       * One or more references to visual page elements
        * 

        *
-       * string id = 7 [(.google.api.field_behavior) = OPTIONAL];
-       *
-       * @return The id.
+       * repeated .google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef page_refs = 1;
+       * 
        */
-      public java.lang.String getId() {
-        java.lang.Object ref = id_;
-        if (!(ref instanceof java.lang.String)) {
-          com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
-          java.lang.String s = bs.toStringUtf8();
-          id_ = s;
-          return s;
+      public com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRefOrBuilder
+          getPageRefsOrBuilder(int index) {
+        if (pageRefsBuilder_ == null) {
+          return pageRefs_.get(index);
         } else {
-          return (java.lang.String) ref;
+          return pageRefsBuilder_.getMessageOrBuilder(index);
         }
       }
       /**
        *
        *
        * 
-       * Optional. Canonical id. This will be a unique value in the entity list
-       * for this document.
+       * One or more references to visual page elements
        * 

        *
-       * string id = 7 [(.google.api.field_behavior) = OPTIONAL];
-       *
-       * @return The bytes for id.
+       * repeated .google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef page_refs = 1;
+       * 
        */
-      public com.google.protobuf.ByteString getIdBytes() {
-        java.lang.Object ref = id_;
-        if (ref instanceof String) {
-          com.google.protobuf.ByteString b =
-              com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
-          id_ = b;
-          return b;
+      public java.util.List<
+              ? extends com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRefOrBuilder>
+          getPageRefsOrBuilderList() {
+        if (pageRefsBuilder_ != null) {
+          return pageRefsBuilder_.getMessageOrBuilderList();
         } else {
-          return (com.google.protobuf.ByteString) ref;
+          return java.util.Collections.unmodifiableList(pageRefs_);
         }
       }
       /**
        *
        *
        * 
-       * Optional. Canonical id. This will be a unique value in the entity list
-       * for this document.
+       * One or more references to visual page elements
        * 

        *
-       * string id = 7 [(.google.api.field_behavior) = OPTIONAL];
-       *
-       * @param value The id to set.
-       * @return This builder for chaining.
+       * repeated .google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef page_refs = 1;
+       * 
        */
-      public Builder setId(java.lang.String value) {
-        if (value == null) {
-          throw new NullPointerException();
-        }
-        id_ = value;
-        bitField0_ |= 0x00000040;
-        onChanged();
-        return this;
+      public com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef.Builder
+          addPageRefsBuilder() {
+        return getPageRefsFieldBuilder()
+            .addBuilder(
+                com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef
+                    .getDefaultInstance());
       }
       /**
        *
        *
        * 
-       * Optional. Canonical id. This will be a unique value in the entity list
-       * for this document.
+       * One or more references to visual page elements
        * 

        *
-       * string id = 7 [(.google.api.field_behavior) = OPTIONAL];
-       *
-       * @return This builder for chaining.
+       * repeated .google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef page_refs = 1;
+       * 
        */
-      public Builder clearId() {
-        id_ = getDefaultInstance().getId();
-        bitField0_ = (bitField0_ & ~0x00000040);
-        onChanged();
-        return this;
+      public com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef.Builder
+          addPageRefsBuilder(int index) {
+        return getPageRefsFieldBuilder()
+            .addBuilder(
+                index,
+                com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef
+                    .getDefaultInstance());
       }
       /**
        *
        *
        * 
-       * Optional. Canonical id. This will be a unique value in the entity list
-       * for this document.
+       * One or more references to visual page elements
        * 

        *
-       * string id = 7 [(.google.api.field_behavior) = OPTIONAL];
-       *
-       * @param value The bytes for id to set.
-       * @return This builder for chaining.
+       * repeated .google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef page_refs = 1;
+       * 
        */
-      public Builder setIdBytes(com.google.protobuf.ByteString value) {
-        if (value == null) {
-          throw new NullPointerException();
+      public java.util.List
+          getPageRefsBuilderList() {
+        return getPageRefsFieldBuilder().getBuilderList();
+      }
+
+      private com.google.protobuf.RepeatedFieldBuilderV3<
+              com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef,
+              com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef.Builder,
+              com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRefOrBuilder>
+          getPageRefsFieldBuilder() {
+        if (pageRefsBuilder_ == null) {
+          pageRefsBuilder_ =
+              new com.google.protobuf.RepeatedFieldBuilderV3<
+                  com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef,
+                  com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef.Builder,
+                  com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRefOrBuilder>(
+                  pageRefs_, ((bitField0_ & 0x00000001) != 0), getParentForChildren(), isClean());
+          pageRefs_ = null;
         }
-        checkByteStringIsUtf8(value);
-        id_ = value;
-        bitField0_ |= 0x00000040;
-        onChanged();
-        return this;
+        return pageRefsBuilder_;
       }
 
       @java.lang.Override
@@ -33178,24 +58048,24 @@ public final Builder mergeUnknownFields(
         return super.mergeUnknownFields(unknownFields);
       }
 
-      // @@protoc_insertion_point(builder_scope:google.cloud.documentai.v1beta2.Document.Entity)
+      // @@protoc_insertion_point(builder_scope:google.cloud.documentai.v1beta2.Document.PageAnchor)
     }
 
-    // @@protoc_insertion_point(class_scope:google.cloud.documentai.v1beta2.Document.Entity)
-    private static final com.google.cloud.documentai.v1beta2.Document.Entity DEFAULT_INSTANCE;
+    // @@protoc_insertion_point(class_scope:google.cloud.documentai.v1beta2.Document.PageAnchor)
+    private static final com.google.cloud.documentai.v1beta2.Document.PageAnchor DEFAULT_INSTANCE;
 
     static {
-      DEFAULT_INSTANCE = new com.google.cloud.documentai.v1beta2.Document.Entity();
+      DEFAULT_INSTANCE = new com.google.cloud.documentai.v1beta2.Document.PageAnchor();
     }
 
-    public static com.google.cloud.documentai.v1beta2.Document.Entity getDefaultInstance() {
+    public static com.google.cloud.documentai.v1beta2.Document.PageAnchor getDefaultInstance() {
       return DEFAULT_INSTANCE;
     }
 
-    private static final com.google.protobuf.Parser PARSER =
-        new com.google.protobuf.AbstractParser() {
+    private static final com.google.protobuf.Parser PARSER =
+        new com.google.protobuf.AbstractParser() {
           @java.lang.Override
-          public Entity parsePartialFrom(
+          public PageAnchor parsePartialFrom(
               com.google.protobuf.CodedInputStream input,
               com.google.protobuf.ExtensionRegistryLite extensionRegistry)
               throws com.google.protobuf.InvalidProtocolBufferException {
@@ -33215,4498 +58085,6470 @@ public Entity parsePartialFrom(
           }
         };
 
-    public static com.google.protobuf.Parser parser() {
+    public static com.google.protobuf.Parser parser() {
       return PARSER;
     }
 
     @java.lang.Override
-    public com.google.protobuf.Parser getParserForType() {
+    public com.google.protobuf.Parser getParserForType() {
       return PARSER;
     }
 
     @java.lang.Override
-    public com.google.cloud.documentai.v1beta2.Document.Entity getDefaultInstanceForType() {
+    public com.google.cloud.documentai.v1beta2.Document.PageAnchor getDefaultInstanceForType() {
       return DEFAULT_INSTANCE;
     }
   }
 
-  public interface EntityRelationOrBuilder
+  public interface ProvenanceOrBuilder
       extends
-      // @@protoc_insertion_point(interface_extends:google.cloud.documentai.v1beta2.Document.EntityRelation)
+      // @@protoc_insertion_point(interface_extends:google.cloud.documentai.v1beta2.Document.Provenance)
       com.google.protobuf.MessageOrBuilder {
 
     /**
      *
      *
      * 
-     * Subject entity id.
-     * 

-     *
-     * string subject_id = 1;
-     *
-     * @return The subjectId.
-     */
-    java.lang.String getSubjectId();
-    /**
-     *
-     *
-     * 
-     * Subject entity id.
-     * 

-     *
-     * string subject_id = 1;
-     *
-     * @return The bytes for subjectId.
-     */
-    com.google.protobuf.ByteString getSubjectIdBytes();
-
-    /**
-     *
-     *
-     * 
-     * Object entity id.
-     * 

-     *
-     * string object_id = 2;
-     *
-     * @return The objectId.
-     */
-    java.lang.String getObjectId();
-    /**
-     *
-     *
-     * 
-     * Object entity id.
+     * The index of the revision that produced this element.
      * 

      *
-     * string object_id = 2;
+     * int32 revision = 1 [deprecated = true];
      *
-     * @return The bytes for objectId.
+     * @deprecated google.cloud.documentai.v1beta2.Document.Provenance.revision is deprecated. See
+     *     google/cloud/documentai/v1beta2/document.proto;l=849
+     * @return The revision.
      */
-    com.google.protobuf.ByteString getObjectIdBytes();
+    @java.lang.Deprecated
+    int getRevision();
 
     /**
      *
      *
      * 
-     * Relationship description.
-     * 

-     *
-     * string relation = 3;
-     *
-     * @return The relation.
-     */
-    java.lang.String getRelation();
-    /**
-     *
-     *
-     * 
-     * Relationship description.
+     * The Id of this operation.  Needs to be unique within the scope of the
+     * revision.
      * 

      *
-     * string relation = 3;
+     * int32 id = 2 [deprecated = true];
      *
-     * @return The bytes for relation.
+     * @deprecated google.cloud.documentai.v1beta2.Document.Provenance.id is deprecated. See
+     *     google/cloud/documentai/v1beta2/document.proto;l=853
+     * @return The id.
      */
-    com.google.protobuf.ByteString getRelationBytes();
-  }
-  /**
-   *
-   *
-   * 
-   * Relationship between [Entities][google.cloud.documentai.v1beta2.Document.Entity].
-   * 

-   *
-   * Protobuf type {@code google.cloud.documentai.v1beta2.Document.EntityRelation}
-   */
-  public static final class EntityRelation extends com.google.protobuf.GeneratedMessageV3
-      implements
-      // @@protoc_insertion_point(message_implements:google.cloud.documentai.v1beta2.Document.EntityRelation)
-      EntityRelationOrBuilder {
-    private static final long serialVersionUID = 0L;
-    // Use EntityRelation.newBuilder() to construct.
-    private EntityRelation(com.google.protobuf.GeneratedMessageV3.Builder builder) {
-      super(builder);
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-
-    private EntityRelation() {
-      subjectId_ = "";
-      objectId_ = "";
-      relation_ = "";
-    }
-
-    @java.lang.Override
-    @SuppressWarnings({"unused"})
-    protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
-      return new EntityRelation();
-    }
-
-    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
-      return com.google.cloud.documentai.v1beta2.DocumentProto
-          .internal_static_google_cloud_documentai_v1beta2_Document_EntityRelation_descriptor;
-    }
-
-    @java.lang.Override
-    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
-        internalGetFieldAccessorTable() {
-      return com.google.cloud.documentai.v1beta2.DocumentProto
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-          .ensureFieldAccessorsInitialized(
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-              com.google.cloud.documentai.v1beta2.Document.EntityRelation.Builder.class);
-    }
-
-    public static final int SUBJECT_ID_FIELD_NUMBER = 1;
+    @java.lang.Deprecated
+    int getId();
 
-    @SuppressWarnings("serial")
-    private volatile java.lang.Object subjectId_ = "";
-    /**
-     *
-     *
-     * 
-     * Subject entity id.
-     * 

-     *
-     * string subject_id = 1;
-     *
-     * @return The subjectId.
-     */
-    @java.lang.Override
-    public java.lang.String getSubjectId() {
-      java.lang.Object ref = subjectId_;
-      if (ref instanceof java.lang.String) {
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-        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
-        java.lang.String s = bs.toStringUtf8();
-        subjectId_ = s;
-        return s;
-      }
-    }
     /**
      *
      *
      * 
-     * Subject entity id.
+     * References to the original elements that are replaced.
      * 

      *
-     * string subject_id = 1;
-     *
-     * @return The bytes for subjectId.
+     * repeated .google.cloud.documentai.v1beta2.Document.Provenance.Parent parents = 3;
+     * 
      */
-    @java.lang.Override
-    public com.google.protobuf.ByteString getSubjectIdBytes() {
-      java.lang.Object ref = subjectId_;
-      if (ref instanceof java.lang.String) {
-        com.google.protobuf.ByteString b =
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-        subjectId_ = b;
-        return b;
-      } else {
-        return (com.google.protobuf.ByteString) ref;
-      }
-    }
-
-    public static final int OBJECT_ID_FIELD_NUMBER = 2;
-
-    @SuppressWarnings("serial")
-    private volatile java.lang.Object objectId_ = "";
+    java.util.List getParentsList();
     /**
      *
      *
      * 
-     * Object entity id.
+     * References to the original elements that are replaced.
      * 

      *
-     * string object_id = 2;
-     *
-     * @return The objectId.
+     * repeated .google.cloud.documentai.v1beta2.Document.Provenance.Parent parents = 3;
+     * 
      */
-    @java.lang.Override
-    public java.lang.String getObjectId() {
-      java.lang.Object ref = objectId_;
-      if (ref instanceof java.lang.String) {
-        return (java.lang.String) ref;
-      } else {
-        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
-        java.lang.String s = bs.toStringUtf8();
-        objectId_ = s;
-        return s;
-      }
-    }
+    com.google.cloud.documentai.v1beta2.Document.Provenance.Parent getParents(int index);
     /**
      *
      *
      * 
-     * Object entity id.
+     * References to the original elements that are replaced.
      * 

      *
-     * string object_id = 2;
-     *
-     * @return The bytes for objectId.
+     * repeated .google.cloud.documentai.v1beta2.Document.Provenance.Parent parents = 3;
+     * 
      */
-    @java.lang.Override
-    public com.google.protobuf.ByteString getObjectIdBytes() {
-      java.lang.Object ref = objectId_;
-      if (ref instanceof java.lang.String) {
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-        objectId_ = b;
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-      }
-    }
-
-    public static final int RELATION_FIELD_NUMBER = 3;
-
-    @SuppressWarnings("serial")
-    private volatile java.lang.Object relation_ = "";
+    int getParentsCount();
     /**
      *
      *
      * 
-     * Relationship description.
+     * References to the original elements that are replaced.
      * 

      *
-     * string relation = 3;
-     *
-     * @return The relation.
+     * repeated .google.cloud.documentai.v1beta2.Document.Provenance.Parent parents = 3;
+     * 
      */
-    @java.lang.Override
-    public java.lang.String getRelation() {
-      java.lang.Object ref = relation_;
-      if (ref instanceof java.lang.String) {
-        return (java.lang.String) ref;
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-        java.lang.String s = bs.toStringUtf8();
-        relation_ = s;
-        return s;
-      }
-    }
+    java.util.List<
+            ? extends com.google.cloud.documentai.v1beta2.Document.Provenance.ParentOrBuilder>
+        getParentsOrBuilderList();
     /**
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      *
      * 
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-     * string relation = 3;
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-    @java.lang.Override
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-      memoizedHashCode = hash;
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-    public static com.google.cloud.documentai.v1beta2.Document.EntityRelation parseFrom(
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-      return PARSER.parseFrom(data);
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-
-    public static com.google.cloud.documentai.v1beta2.Document.EntityRelation parseFrom(
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-    }
-
-    public static com.google.cloud.documentai.v1beta2.Document.EntityRelation parseFrom(
-        java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-        throws java.io.IOException {
-      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
-          PARSER, input, extensionRegistry);
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-
-    public static com.google.cloud.documentai.v1beta2.Document.EntityRelation parseDelimitedFrom(
-        java.io.InputStream input) throws java.io.IOException {
-      return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
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-
-    public static com.google.cloud.documentai.v1beta2.Document.EntityRelation parseDelimitedFrom(
-        java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-        throws java.io.IOException {
-      return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
-          PARSER, input, extensionRegistry);
-    }
+     * References to the original elements that are replaced.
+     * 
+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.Provenance.Parent parents = 3;
+     * 
+     */
+    com.google.cloud.documentai.v1beta2.Document.Provenance.ParentOrBuilder getParentsOrBuilder(
+        int index);
 
-    public static com.google.cloud.documentai.v1beta2.Document.EntityRelation parseFrom(
-        com.google.protobuf.CodedInputStream input) throws java.io.IOException {
-      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+    /**
+     *
+     *
+     * 
+     * The type of provenance operation.
+     * 

+     *
+     * .google.cloud.documentai.v1beta2.Document.Provenance.OperationType type = 4;
+     *
+     * @return The enum numeric value on the wire for type.
+     */
+    int getTypeValue();
+    /**
+     *
+     *
+     * 
+     * The type of provenance operation.
+     * 

+     *
+     * .google.cloud.documentai.v1beta2.Document.Provenance.OperationType type = 4;
+     *
+     * @return The type.
+     */
+    com.google.cloud.documentai.v1beta2.Document.Provenance.OperationType getType();
+  }
+  /**
+   *
+   *
+   * 
+   * Structure to identify provenance relationships between annotations in
+   * different revisions.
+   * 

+   *
+   * Protobuf type {@code google.cloud.documentai.v1beta2.Document.Provenance}
+   */
+  public static final class Provenance extends com.google.protobuf.GeneratedMessageV3
+      implements
+      // @@protoc_insertion_point(message_implements:google.cloud.documentai.v1beta2.Document.Provenance)
+      ProvenanceOrBuilder {
+    private static final long serialVersionUID = 0L;
+    // Use Provenance.newBuilder() to construct.
+    private Provenance(com.google.protobuf.GeneratedMessageV3.Builder builder) {
+      super(builder);
     }
 
-    public static com.google.cloud.documentai.v1beta2.Document.EntityRelation parseFrom(
-        com.google.protobuf.CodedInputStream input,
-        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-        throws java.io.IOException {
-      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
-          PARSER, input, extensionRegistry);
+    private Provenance() {
+      parents_ = java.util.Collections.emptyList();
+      type_ = 0;
     }
 
     @java.lang.Override
-    public Builder newBuilderForType() {
-      return newBuilder();
-    }
-
-    public static Builder newBuilder() {
-      return DEFAULT_INSTANCE.toBuilder();
+    @SuppressWarnings({"unused"})
+    protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+      return new Provenance();
     }
 
-    public static Builder newBuilder(
-        com.google.cloud.documentai.v1beta2.Document.EntityRelation prototype) {
-      return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.documentai.v1beta2.DocumentProto
+          .internal_static_google_cloud_documentai_v1beta2_Document_Provenance_descriptor;
     }
 
     @java.lang.Override
-    public Builder toBuilder() {
-      return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.documentai.v1beta2.DocumentProto
+          .internal_static_google_cloud_documentai_v1beta2_Document_Provenance_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.documentai.v1beta2.Document.Provenance.class,
+              com.google.cloud.documentai.v1beta2.Document.Provenance.Builder.class);
     }
 
-    @java.lang.Override
-    protected Builder newBuilderForType(
-        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
-      Builder builder = new Builder(parent);
-      return builder;
-    }
     /**
      *
      *
      * 
-     * Relationship between [Entities][google.cloud.documentai.v1beta2.Document.Entity].
+     * If a processor or agent does an explicit operation on existing elements.
      * 

      *
-     * Protobuf type {@code google.cloud.documentai.v1beta2.Document.EntityRelation}
+     * Protobuf enum {@code google.cloud.documentai.v1beta2.Document.Provenance.OperationType}
      */
-    public static final class Builder
-        extends com.google.protobuf.GeneratedMessageV3.Builder
-        implements
-        // @@protoc_insertion_point(builder_implements:google.cloud.documentai.v1beta2.Document.EntityRelation)
-        com.google.cloud.documentai.v1beta2.Document.EntityRelationOrBuilder {
-      public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
-        return com.google.cloud.documentai.v1beta2.DocumentProto
-            .internal_static_google_cloud_documentai_v1beta2_Document_EntityRelation_descriptor;
-      }
-
-      @java.lang.Override
-      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
-          internalGetFieldAccessorTable() {
-        return com.google.cloud.documentai.v1beta2.DocumentProto
-            .internal_static_google_cloud_documentai_v1beta2_Document_EntityRelation_fieldAccessorTable
-            .ensureFieldAccessorsInitialized(
-                com.google.cloud.documentai.v1beta2.Document.EntityRelation.class,
-                com.google.cloud.documentai.v1beta2.Document.EntityRelation.Builder.class);
-      }
-
-      // Construct using com.google.cloud.documentai.v1beta2.Document.EntityRelation.newBuilder()
-      private Builder() {}
-
-      private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
-        super(parent);
-      }
-
-      @java.lang.Override
-      public Builder clear() {
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-        bitField0_ = 0;
-        subjectId_ = "";
-        objectId_ = "";
-        relation_ = "";
-        return this;
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-
-      @java.lang.Override
-      public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
-        return com.google.cloud.documentai.v1beta2.DocumentProto
-            .internal_static_google_cloud_documentai_v1beta2_Document_EntityRelation_descriptor;
-      }
+    public enum OperationType implements com.google.protobuf.ProtocolMessageEnum {
+      /**
+       *
+       *
+       * 
+       * Operation type unspecified. If no operation is specified a provenance
+       * entry is simply used to match against a `parent`.
+       * 

+       *
+       * OPERATION_TYPE_UNSPECIFIED = 0;
+       */
+      OPERATION_TYPE_UNSPECIFIED(0),
+      /**
+       *
+       *
+       * 
+       * Add an element.
+       * 

+       *
+       * ADD = 1;
+       */
+      ADD(1),
+      /**
+       *
+       *
+       * 
+       * Remove an element identified by `parent`.
+       * 

+       *
+       * REMOVE = 2;
+       */
+      REMOVE(2),
+      /**
+       *
+       *
+       * 
+       * Updates any fields within the given provenance scope of the message. It
+       * overwrites the fields rather than replacing them.  Use this when you
+       * want to update a field value of an entity without also updating all the
+       * child properties.
+       * 

+       *
+       * UPDATE = 7;
+       */
+      UPDATE(7),
+      /**
+       *
+       *
+       * 
+       * Currently unused. Replace an element identified by `parent`.
+       * 

+       *
+       * REPLACE = 3;
+       */
+      REPLACE(3),
+      /**
+       *
+       *
+       * 
+       * Deprecated. Request human review for the element identified by
+       * `parent`.
+       * 

+       *
+       * EVAL_REQUESTED = 4 [deprecated = true];
+       */
+      @java.lang.Deprecated
+      EVAL_REQUESTED(4),
+      /**
+       *
+       *
+       * 
+       * Deprecated. Element is reviewed and approved at human review,
+       * confidence will be set to 1.0.
+       * 

+       *
+       * EVAL_APPROVED = 5 [deprecated = true];
+       */
+      @java.lang.Deprecated
+      EVAL_APPROVED(5),
+      /**
+       *
+       *
+       * 
+       * Deprecated. Element is skipped in the validation process.
+       * 

+       *
+       * EVAL_SKIPPED = 6 [deprecated = true];
+       */
+      @java.lang.Deprecated
+      EVAL_SKIPPED(6),
+      UNRECOGNIZED(-1),
+      ;
 
-      @java.lang.Override
-      public com.google.cloud.documentai.v1beta2.Document.EntityRelation
-          getDefaultInstanceForType() {
-        return com.google.cloud.documentai.v1beta2.Document.EntityRelation.getDefaultInstance();
-      }
+      /**
+       *
+       *
+       * 
+       * Operation type unspecified. If no operation is specified a provenance
+       * entry is simply used to match against a `parent`.
+       * 

+       *
+       * OPERATION_TYPE_UNSPECIFIED = 0;
+       */
+      public static final int OPERATION_TYPE_UNSPECIFIED_VALUE = 0;
+      /**
+       *
+       *
+       * 
+       * Add an element.
+       * 

+       *
+       * ADD = 1;
+       */
+      public static final int ADD_VALUE = 1;
+      /**
+       *
+       *
+       * 
+       * Remove an element identified by `parent`.
+       * 

+       *
+       * REMOVE = 2;
+       */
+      public static final int REMOVE_VALUE = 2;
+      /**
+       *
+       *
+       * 
+       * Updates any fields within the given provenance scope of the message. It
+       * overwrites the fields rather than replacing them.  Use this when you
+       * want to update a field value of an entity without also updating all the
+       * child properties.
+       * 

+       *
+       * UPDATE = 7;
+       */
+      public static final int UPDATE_VALUE = 7;
+      /**
+       *
+       *
+       * 
+       * Currently unused. Replace an element identified by `parent`.
+       * 

+       *
+       * REPLACE = 3;
+       */
+      public static final int REPLACE_VALUE = 3;
+      /**
+       *
+       *
+       * 
+       * Deprecated. Request human review for the element identified by
+       * `parent`.
+       * 

+       *
+       * EVAL_REQUESTED = 4 [deprecated = true];
+       */
+      @java.lang.Deprecated public static final int EVAL_REQUESTED_VALUE = 4;
+      /**
+       *
+       *
+       * 
+       * Deprecated. Element is reviewed and approved at human review,
+       * confidence will be set to 1.0.
+       * 

+       *
+       * EVAL_APPROVED = 5 [deprecated = true];
+       */
+      @java.lang.Deprecated public static final int EVAL_APPROVED_VALUE = 5;
+      /**
+       *
+       *
+       * 
+       * Deprecated. Element is skipped in the validation process.
+       * 

+       *
+       * EVAL_SKIPPED = 6 [deprecated = true];
+       */
+      @java.lang.Deprecated public static final int EVAL_SKIPPED_VALUE = 6;
 
-      @java.lang.Override
-      public com.google.cloud.documentai.v1beta2.Document.EntityRelation build() {
-        com.google.cloud.documentai.v1beta2.Document.EntityRelation result = buildPartial();
-        if (!result.isInitialized()) {
-          throw newUninitializedMessageException(result);
+      public final int getNumber() {
+        if (this == UNRECOGNIZED) {
+          throw new java.lang.IllegalArgumentException(
+              "Can't get the number of an unknown enum value.");
         }
-        return result;
+        return value;
       }
 
-      @java.lang.Override
-      public com.google.cloud.documentai.v1beta2.Document.EntityRelation buildPartial() {
-        com.google.cloud.documentai.v1beta2.Document.EntityRelation result =
-            new com.google.cloud.documentai.v1beta2.Document.EntityRelation(this);
-        if (bitField0_ != 0) {
-          buildPartial0(result);
-        }
-        onBuilt();
-        return result;
+      /**
+       * @param value The numeric wire value of the corresponding enum entry.
+       * @return The enum associated with the given numeric wire value.
+       * @deprecated Use {@link #forNumber(int)} instead.
+       */
+      @java.lang.Deprecated
+      public static OperationType valueOf(int value) {
+        return forNumber(value);
       }
 
-      private void buildPartial0(
-          com.google.cloud.documentai.v1beta2.Document.EntityRelation result) {
-        int from_bitField0_ = bitField0_;
-        if (((from_bitField0_ & 0x00000001) != 0)) {
-          result.subjectId_ = subjectId_;
-        }
-        if (((from_bitField0_ & 0x00000002) != 0)) {
-          result.objectId_ = objectId_;
-        }
-        if (((from_bitField0_ & 0x00000004) != 0)) {
-          result.relation_ = relation_;
+      /**
+       * @param value The numeric wire value of the corresponding enum entry.
+       * @return The enum associated with the given numeric wire value.
+       */
+      public static OperationType forNumber(int value) {
+        switch (value) {
+          case 0:
+            return OPERATION_TYPE_UNSPECIFIED;
+          case 1:
+            return ADD;
+          case 2:
+            return REMOVE;
+          case 7:
+            return UPDATE;
+          case 3:
+            return REPLACE;
+          case 4:
+            return EVAL_REQUESTED;
+          case 5:
+            return EVAL_APPROVED;
+          case 6:
+            return EVAL_SKIPPED;
+          default:
+            return null;
         }
       }
 
-      @java.lang.Override
-      public Builder clone() {
-        return super.clone();
-      }
-
-      @java.lang.Override
-      public Builder setField(
-          com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
-        return super.setField(field, value);
+      public static com.google.protobuf.Internal.EnumLiteMap internalGetValueMap() {
+        return internalValueMap;
       }
 
-      @java.lang.Override
-      public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
-        return super.clearField(field);
-      }
+      private static final com.google.protobuf.Internal.EnumLiteMap
+          internalValueMap =
+              new com.google.protobuf.Internal.EnumLiteMap() {
+                public OperationType findValueByNumber(int number) {
+                  return OperationType.forNumber(number);
+                }
+              };
 
-      @java.lang.Override
-      public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
-        return super.clearOneof(oneof);
+      public final com.google.protobuf.Descriptors.EnumValueDescriptor getValueDescriptor() {
+        if (this == UNRECOGNIZED) {
+          throw new java.lang.IllegalStateException(
+              "Can't get the descriptor of an unrecognized enum value.");
+        }
+        return getDescriptor().getValues().get(ordinal());
       }
 
-      @java.lang.Override
-      public Builder setRepeatedField(
-          com.google.protobuf.Descriptors.FieldDescriptor field,
-          int index,
-          java.lang.Object value) {
-        return super.setRepeatedField(field, index, value);
+      public final com.google.protobuf.Descriptors.EnumDescriptor getDescriptorForType() {
+        return getDescriptor();
       }
 
-      @java.lang.Override
-      public Builder addRepeatedField(
-          com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
-        return super.addRepeatedField(field, value);
+      public static final com.google.protobuf.Descriptors.EnumDescriptor getDescriptor() {
+        return com.google.cloud.documentai.v1beta2.Document.Provenance.getDescriptor()
+            .getEnumTypes()
+            .get(0);
       }
 
-      @java.lang.Override
-      public Builder mergeFrom(com.google.protobuf.Message other) {
-        if (other instanceof com.google.cloud.documentai.v1beta2.Document.EntityRelation) {
-          return mergeFrom((com.google.cloud.documentai.v1beta2.Document.EntityRelation) other);
-        } else {
-          super.mergeFrom(other);
-          return this;
-        }
-      }
+      private static final OperationType[] VALUES = values();
 
-      public Builder mergeFrom(com.google.cloud.documentai.v1beta2.Document.EntityRelation other) {
-        if (other
-            == com.google.cloud.documentai.v1beta2.Document.EntityRelation.getDefaultInstance())
-          return this;
-        if (!other.getSubjectId().isEmpty()) {
-          subjectId_ = other.subjectId_;
-          bitField0_ |= 0x00000001;
-          onChanged();
-        }
-        if (!other.getObjectId().isEmpty()) {
-          objectId_ = other.objectId_;
-          bitField0_ |= 0x00000002;
-          onChanged();
+      public static OperationType valueOf(
+          com.google.protobuf.Descriptors.EnumValueDescriptor desc) {
+        if (desc.getType() != getDescriptor()) {
+          throw new java.lang.IllegalArgumentException("EnumValueDescriptor is not for this type.");
         }
-        if (!other.getRelation().isEmpty()) {
-          relation_ = other.relation_;
-          bitField0_ |= 0x00000004;
-          onChanged();
+        if (desc.getIndex() == -1) {
+          return UNRECOGNIZED;
         }
-        this.mergeUnknownFields(other.getUnknownFields());
-        onChanged();
-        return this;
+        return VALUES[desc.getIndex()];
       }
 
-      @java.lang.Override
-      public final boolean isInitialized() {
-        return true;
-      }
+      private final int value;
 
-      @java.lang.Override
-      public Builder mergeFrom(
-          com.google.protobuf.CodedInputStream input,
-          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-          throws java.io.IOException {
-        if (extensionRegistry == null) {
-          throw new java.lang.NullPointerException();
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-        try {
-          boolean done = false;
-          while (!done) {
-            int tag = input.readTag();
-            switch (tag) {
-              case 0:
-                done = true;
-                break;
-              case 10:
-                {
-                  subjectId_ = input.readStringRequireUtf8();
-                  bitField0_ |= 0x00000001;
-                  break;
-                } // case 10
-              case 18:
-                {
-                  objectId_ = input.readStringRequireUtf8();
-                  bitField0_ |= 0x00000002;
-                  break;
-                } // case 18
-              case 26:
-                {
-                  relation_ = input.readStringRequireUtf8();
-                  bitField0_ |= 0x00000004;
-                  break;
-                } // case 26
-              default:
-                {
-                  if (!super.parseUnknownField(input, extensionRegistry, tag)) {
-                    done = true; // was an endgroup tag
-                  }
-                  break;
-                } // default:
-            } // switch (tag)
-          } // while (!done)
-        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-          throw e.unwrapIOException();
-        } finally {
-          onChanged();
-        } // finally
-        return this;
+      private OperationType(int value) {
+        this.value = value;
       }
 
-      private int bitField0_;
+      // @@protoc_insertion_point(enum_scope:google.cloud.documentai.v1beta2.Document.Provenance.OperationType)
+    }
+
+    public interface ParentOrBuilder
+        extends
+        // @@protoc_insertion_point(interface_extends:google.cloud.documentai.v1beta2.Document.Provenance.Parent)
+        com.google.protobuf.MessageOrBuilder {
 
-      private java.lang.Object subjectId_ = "";
       /**
        *
        *
        * 
-       * Subject entity id.
+       * The index of the index into current revision's parent_ids list.
        * 

        *
-       * string subject_id = 1;
+       * int32 revision = 1;
        *
-       * @return The subjectId.
+       * @return The revision.
        */
-      public java.lang.String getSubjectId() {
-        java.lang.Object ref = subjectId_;
-        if (!(ref instanceof java.lang.String)) {
-          com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
-          java.lang.String s = bs.toStringUtf8();
-          subjectId_ = s;
-          return s;
-        } else {
-          return (java.lang.String) ref;
-        }
-      }
+      int getRevision();
+
       /**
        *
        *
        * 
-       * Subject entity id.
+       * The index of the parent item in the corresponding item list (eg. list
+       * of entities, properties within entities, etc.) in the parent revision.
        * 

        *
-       * string subject_id = 1;
+       * int32 index = 3;
        *
-       * @return The bytes for subjectId.
+       * @return The index.
        */
-      public com.google.protobuf.ByteString getSubjectIdBytes() {
-        java.lang.Object ref = subjectId_;
-        if (ref instanceof String) {
-          com.google.protobuf.ByteString b =
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-          subjectId_ = b;
-          return b;
-        } else {
-          return (com.google.protobuf.ByteString) ref;
-        }
-      }
+      int getIndex();
+
       /**
        *
        *
        * 
-       * Subject entity id.
+       * The id of the parent provenance.
        * 

        *
-       * string subject_id = 1;
+       * int32 id = 2 [deprecated = true];
        *
-       * @param value The subjectId to set.
-       * @return This builder for chaining.
+       * @deprecated google.cloud.documentai.v1beta2.Document.Provenance.Parent.id is deprecated.
+       *     See google/cloud/documentai/v1beta2/document.proto;l=812
+       * @return The id.
        */
-      public Builder setSubjectId(java.lang.String value) {
-        if (value == null) {
-          throw new NullPointerException();
-        }
-        subjectId_ = value;
-        bitField0_ |= 0x00000001;
-        onChanged();
-        return this;
+      @java.lang.Deprecated
+      int getId();
+    }
+    /**
+     *
+     *
+     * 
+     * The parent element the current element is based on. Used for
+     * referencing/aligning, removal and replacement operations.
+     * 

+     *
+     * Protobuf type {@code google.cloud.documentai.v1beta2.Document.Provenance.Parent}
+     */
+    public static final class Parent extends com.google.protobuf.GeneratedMessageV3
+        implements
+        // @@protoc_insertion_point(message_implements:google.cloud.documentai.v1beta2.Document.Provenance.Parent)
+        ParentOrBuilder {
+      private static final long serialVersionUID = 0L;
+      // Use Parent.newBuilder() to construct.
+      private Parent(com.google.protobuf.GeneratedMessageV3.Builder builder) {
+        super(builder);
       }
-      /**
-       *
-       *
-       * 
-       * Subject entity id.
-       * 

-       *
-       * string subject_id = 1;
-       *
-       * @return This builder for chaining.
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-      public Builder clearSubjectId() {
-        subjectId_ = getDefaultInstance().getSubjectId();
-        bitField0_ = (bitField0_ & ~0x00000001);
-        onChanged();
-        return this;
+
+      private Parent() {}
+
+      @java.lang.Override
+      @SuppressWarnings({"unused"})
+      protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+        return new Parent();
       }
-      /**
-       *
-       *
-       * 
-       * Subject entity id.
-       * 

-       *
-       * string subject_id = 1;
-       *
-       * @param value The bytes for subjectId to set.
-       * @return This builder for chaining.
-       */
-      public Builder setSubjectIdBytes(com.google.protobuf.ByteString value) {
-        if (value == null) {
-          throw new NullPointerException();
-        }
-        checkByteStringIsUtf8(value);
-        subjectId_ = value;
-        bitField0_ |= 0x00000001;
-        onChanged();
-        return this;
+
+      public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+        return com.google.cloud.documentai.v1beta2.DocumentProto
+            .internal_static_google_cloud_documentai_v1beta2_Document_Provenance_Parent_descriptor;
       }
 
-      private java.lang.Object objectId_ = "";
-      /**
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-       *
-       * 
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+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Provenance.Parent parents = 3;
+       * 
+       */
+      public java.util.List
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-          return super.addRepeatedField(field, value);
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+      /**
+       *
+       *
+       * 
+       * References to the original elements that are replaced.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Provenance.Parent parents = 3;
+       * 
+       */
+      public int getParentsCount() {
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         }
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-        public Builder mergeFrom(com.google.protobuf.Message other) {
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-          } else {
-            super.mergeFrom(other);
-            return this;
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+      /**
+       *
+       *
+       * 
+       * References to the original elements that are replaced.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Provenance.Parent parents = 3;
+       * 
+       */
+      public com.google.cloud.documentai.v1beta2.Document.Provenance.Parent getParents(int index) {
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-          if (other.getStartIndex() != 0L) {
-            setStartIndex(other.getStartIndex());
-          }
-          if (other.getEndIndex() != 0L) {
-            setEndIndex(other.getEndIndex());
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+      /**
+       *
+       *
+       * 
+       * References to the original elements that are replaced.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Provenance.Parent parents = 3;
+       * 
+       */
+      public Builder setParents(
+          int index, com.google.cloud.documentai.v1beta2.Document.Provenance.Parent value) {
+        if (parentsBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
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-          this.mergeUnknownFields(other.getUnknownFields());
+          ensureParentsIsMutable();
+          parents_.set(index, value);
           onChanged();
-          return this;
+        } else {
+          parentsBuilder_.setMessage(index, value);
         }
-
-        @java.lang.Override
-        public final boolean isInitialized() {
-          return true;
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * References to the original elements that are replaced.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Provenance.Parent parents = 3;
+       * 
+       */
+      public Builder setParents(
+          int index,
+          com.google.cloud.documentai.v1beta2.Document.Provenance.Parent.Builder builderForValue) {
+        if (parentsBuilder_ == null) {
+          ensureParentsIsMutable();
+          parents_.set(index, builderForValue.build());
+          onChanged();
+        } else {
+          parentsBuilder_.setMessage(index, builderForValue.build());
         }
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-        @java.lang.Override
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-            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-            throws java.io.IOException {
-          if (extensionRegistry == null) {
-            throw new java.lang.NullPointerException();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * References to the original elements that are replaced.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Provenance.Parent parents = 3;
+       * 
+       */
+      public Builder addParents(
+          com.google.cloud.documentai.v1beta2.Document.Provenance.Parent value) {
+        if (parentsBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
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-          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-            throw e.unwrapIOException();
-          } finally {
-            onChanged();
-          } // finally
-          return this;
+          ensureParentsIsMutable();
+          parents_.add(value);
+          onChanged();
+        } else {
+          parentsBuilder_.addMessage(value);
         }
-
-        private int bitField0_;
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-         * [TextSegment][google.cloud.documentai.v1beta2.Document.TextAnchor.TextSegment] start UTF-8 char index in the [Document.text][google.cloud.documentai.v1beta2.Document.text].
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-         * int64 start_index = 1;
-         *
-         * @return The startIndex.
-         */
-        @java.lang.Override
-        public long getStartIndex() {
-          return startIndex_;
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * References to the original elements that are replaced.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Provenance.Parent parents = 3;
+       * 
+       */
+      public Builder addParents(
+          int index, com.google.cloud.documentai.v1beta2.Document.Provenance.Parent value) {
+        if (parentsBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          ensureParentsIsMutable();
+          parents_.add(index, value);
+          onChanged();
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+          parentsBuilder_.addMessage(index, value);
         }
-        /**
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-         *
-         * 
-         * [TextSegment][google.cloud.documentai.v1beta2.Document.TextAnchor.TextSegment] start UTF-8 char index in the [Document.text][google.cloud.documentai.v1beta2.Document.text].
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-         * @return This builder for chaining.
-         */
-        public Builder setStartIndex(long value) {
-
-          startIndex_ = value;
-          bitField0_ |= 0x00000001;
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * References to the original elements that are replaced.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Provenance.Parent parents = 3;
+       * 
+       */
+      public Builder addParents(
+          com.google.cloud.documentai.v1beta2.Document.Provenance.Parent.Builder builderForValue) {
+        if (parentsBuilder_ == null) {
+          ensureParentsIsMutable();
+          parents_.add(builderForValue.build());
           onChanged();
-          return this;
+        } else {
+          parentsBuilder_.addMessage(builderForValue.build());
         }
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-         *
-         * 
-         * [TextSegment][google.cloud.documentai.v1beta2.Document.TextAnchor.TextSegment] start UTF-8 char index in the [Document.text][google.cloud.documentai.v1beta2.Document.text].
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-         * @return This builder for chaining.
-         */
-        public Builder clearStartIndex() {
-          bitField0_ = (bitField0_ & ~0x00000001);
-          startIndex_ = 0L;
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * References to the original elements that are replaced.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Provenance.Parent parents = 3;
+       * 
+       */
+      public Builder addParents(
+          int index,
+          com.google.cloud.documentai.v1beta2.Document.Provenance.Parent.Builder builderForValue) {
+        if (parentsBuilder_ == null) {
+          ensureParentsIsMutable();
+          parents_.add(index, builderForValue.build());
           onChanged();
-          return this;
+        } else {
+          parentsBuilder_.addMessage(index, builderForValue.build());
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-         * 
-         * [TextSegment][google.cloud.documentai.v1beta2.Document.TextAnchor.TextSegment] half open end UTF-8 char index in the
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-         * int64 end_index = 2;
-         *
-         * @return The endIndex.
-         */
-        @java.lang.Override
-        public long getEndIndex() {
-          return endIndex_;
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * References to the original elements that are replaced.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Provenance.Parent parents = 3;
+       * 
+       */
+      public Builder addAllParents(
+          java.lang.Iterable<
+                  ? extends com.google.cloud.documentai.v1beta2.Document.Provenance.Parent>
+              values) {
+        if (parentsBuilder_ == null) {
+          ensureParentsIsMutable();
+          com.google.protobuf.AbstractMessageLite.Builder.addAll(values, parents_);
+          onChanged();
+        } else {
+          parentsBuilder_.addAllMessages(values);
         }
-        /**
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-         *
-         * 
-         * [TextSegment][google.cloud.documentai.v1beta2.Document.TextAnchor.TextSegment] half open end UTF-8 char index in the
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-         * @return This builder for chaining.
-         */
-        public Builder setEndIndex(long value) {
-
-          endIndex_ = value;
-          bitField0_ |= 0x00000002;
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * References to the original elements that are replaced.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Provenance.Parent parents = 3;
+       * 
+       */
+      public Builder clearParents() {
+        if (parentsBuilder_ == null) {
+          parents_ = java.util.Collections.emptyList();
+          bitField0_ = (bitField0_ & ~0x00000004);
           onChanged();
-          return this;
+        } else {
+          parentsBuilder_.clear();
         }
-        /**
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-         * 
-         * [TextSegment][google.cloud.documentai.v1beta2.Document.TextAnchor.TextSegment] half open end UTF-8 char index in the
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-         *
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-         * @return This builder for chaining.
-         */
-        public Builder clearEndIndex() {
-          bitField0_ = (bitField0_ & ~0x00000002);
-          endIndex_ = 0L;
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * References to the original elements that are replaced.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Provenance.Parent parents = 3;
+       * 
+       */
+      public Builder removeParents(int index) {
+        if (parentsBuilder_ == null) {
+          ensureParentsIsMutable();
+          parents_.remove(index);
           onChanged();
-          return this;
+        } else {
+          parentsBuilder_.remove(index);
         }
-
-        @java.lang.Override
-        public final Builder setUnknownFields(
-            final com.google.protobuf.UnknownFieldSet unknownFields) {
-          return super.setUnknownFields(unknownFields);
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * References to the original elements that are replaced.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Provenance.Parent parents = 3;
+       * 
+       */
+      public com.google.cloud.documentai.v1beta2.Document.Provenance.Parent.Builder
+          getParentsBuilder(int index) {
+        return getParentsFieldBuilder().getBuilder(index);
+      }
+      /**
+       *
+       *
+       * 
+       * References to the original elements that are replaced.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Provenance.Parent parents = 3;
+       * 
+       */
+      public com.google.cloud.documentai.v1beta2.Document.Provenance.ParentOrBuilder
+          getParentsOrBuilder(int index) {
+        if (parentsBuilder_ == null) {
+          return parents_.get(index);
+        } else {
+          return parentsBuilder_.getMessageOrBuilder(index);
         }
-
-        @java.lang.Override
-        public final Builder mergeUnknownFields(
-            final com.google.protobuf.UnknownFieldSet unknownFields) {
-          return super.mergeUnknownFields(unknownFields);
+      }
+      /**
+       *
+       *
+       * 
+       * References to the original elements that are replaced.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Provenance.Parent parents = 3;
+       * 
+       */
+      public java.util.List<
+              ? extends com.google.cloud.documentai.v1beta2.Document.Provenance.ParentOrBuilder>
+          getParentsOrBuilderList() {
+        if (parentsBuilder_ != null) {
+          return parentsBuilder_.getMessageOrBuilderList();
+        } else {
+          return java.util.Collections.unmodifiableList(parents_);
         }
-
-        // @@protoc_insertion_point(builder_scope:google.cloud.documentai.v1beta2.Document.TextAnchor.TextSegment)
       }
-
-      // @@protoc_insertion_point(class_scope:google.cloud.documentai.v1beta2.Document.TextAnchor.TextSegment)
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-          DEFAULT_INSTANCE;
-
-      static {
-        DEFAULT_INSTANCE =
-            new com.google.cloud.documentai.v1beta2.Document.TextAnchor.TextSegment();
+      /**
+       *
+       *
+       * 
+       * References to the original elements that are replaced.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Provenance.Parent parents = 3;
+       * 
+       */
+      public com.google.cloud.documentai.v1beta2.Document.Provenance.Parent.Builder
+          addParentsBuilder() {
+        return getParentsFieldBuilder()
+            .addBuilder(
+                com.google.cloud.documentai.v1beta2.Document.Provenance.Parent
+                    .getDefaultInstance());
       }
-
-      public static com.google.cloud.documentai.v1beta2.Document.TextAnchor.TextSegment
-          getDefaultInstance() {
-        return DEFAULT_INSTANCE;
+      /**
+       *
+       *
+       * 
+       * References to the original elements that are replaced.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Provenance.Parent parents = 3;
+       * 
+       */
+      public com.google.cloud.documentai.v1beta2.Document.Provenance.Parent.Builder
+          addParentsBuilder(int index) {
+        return getParentsFieldBuilder()
+            .addBuilder(
+                index,
+                com.google.cloud.documentai.v1beta2.Document.Provenance.Parent
+                    .getDefaultInstance());
+      }
+      /**
+       *
+       *
+       * 
+       * References to the original elements that are replaced.
+       * 

+       *
+       * repeated .google.cloud.documentai.v1beta2.Document.Provenance.Parent parents = 3;
+       * 
+       */
+      public java.util.List
+          getParentsBuilderList() {
+        return getParentsFieldBuilder().getBuilderList();
       }
 
-      private static final com.google.protobuf.Parser PARSER =
-          new com.google.protobuf.AbstractParser() {
-            @java.lang.Override
-            public TextSegment parsePartialFrom(
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-              Builder builder = newBuilder();
-              try {
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-                    .setUnfinishedMessage(builder.buildPartial());
-              } catch (java.io.IOException e) {
-                throw new com.google.protobuf.InvalidProtocolBufferException(e)
-                    .setUnfinishedMessage(builder.buildPartial());
-              }
-              return builder.buildPartial();
-            }
-          };
+      private com.google.protobuf.RepeatedFieldBuilderV3<
+              com.google.cloud.documentai.v1beta2.Document.Provenance.Parent,
+              com.google.cloud.documentai.v1beta2.Document.Provenance.Parent.Builder,
+              com.google.cloud.documentai.v1beta2.Document.Provenance.ParentOrBuilder>
+          getParentsFieldBuilder() {
+        if (parentsBuilder_ == null) {
+          parentsBuilder_ =
+              new com.google.protobuf.RepeatedFieldBuilderV3<
+                  com.google.cloud.documentai.v1beta2.Document.Provenance.Parent,
+                  com.google.cloud.documentai.v1beta2.Document.Provenance.Parent.Builder,
+                  com.google.cloud.documentai.v1beta2.Document.Provenance.ParentOrBuilder>(
+                  parents_, ((bitField0_ & 0x00000004) != 0), getParentForChildren(), isClean());
+          parents_ = null;
+        }
+        return parentsBuilder_;
+      }
 
-      public static com.google.protobuf.Parser parser() {
-        return PARSER;
+      private int type_ = 0;
+      /**
+       *
+       *
+       * 
+       * The type of provenance operation.
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Provenance.OperationType type = 4;
+       *
+       * @return The enum numeric value on the wire for type.
+       */
+      @java.lang.Override
+      public int getTypeValue() {
+        return type_;
+      }
+      /**
+       *
+       *
+       * 
+       * The type of provenance operation.
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Provenance.OperationType type = 4;
+       *
+       * @param value The enum numeric value on the wire for type to set.
+       * @return This builder for chaining.
+       */
+      public Builder setTypeValue(int value) {
+        type_ = value;
+        bitField0_ |= 0x00000008;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * The type of provenance operation.
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Provenance.OperationType type = 4;
+       *
+       * @return The type.
+       */
+      @java.lang.Override
+      public com.google.cloud.documentai.v1beta2.Document.Provenance.OperationType getType() {
+        com.google.cloud.documentai.v1beta2.Document.Provenance.OperationType result =
+            com.google.cloud.documentai.v1beta2.Document.Provenance.OperationType.forNumber(type_);
+        return result == null
+            ? com.google.cloud.documentai.v1beta2.Document.Provenance.OperationType.UNRECOGNIZED
+            : result;
+      }
+      /**
+       *
+       *
+       * 
+       * The type of provenance operation.
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Provenance.OperationType type = 4;
+       *
+       * @param value The type to set.
+       * @return This builder for chaining.
+       */
+      public Builder setType(
+          com.google.cloud.documentai.v1beta2.Document.Provenance.OperationType value) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        bitField0_ |= 0x00000008;
+        type_ = value.getNumber();
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * The type of provenance operation.
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Provenance.OperationType type = 4;
+       *
+       * @return This builder for chaining.
+       */
+      public Builder clearType() {
+        bitField0_ = (bitField0_ & ~0x00000008);
+        type_ = 0;
+        onChanged();
+        return this;
       }
 
       @java.lang.Override
-      public com.google.protobuf.Parser getParserForType() {
-        return PARSER;
+      public final Builder setUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.setUnknownFields(unknownFields);
       }
 
       @java.lang.Override
-      public com.google.cloud.documentai.v1beta2.Document.TextAnchor.TextSegment
-          getDefaultInstanceForType() {
-        return DEFAULT_INSTANCE;
+      public final Builder mergeUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.mergeUnknownFields(unknownFields);
       }
+
+      // @@protoc_insertion_point(builder_scope:google.cloud.documentai.v1beta2.Document.Provenance)
     }
 
-    public static final int TEXT_SEGMENTS_FIELD_NUMBER = 1;
+    // @@protoc_insertion_point(class_scope:google.cloud.documentai.v1beta2.Document.Provenance)
+    private static final com.google.cloud.documentai.v1beta2.Document.Provenance DEFAULT_INSTANCE;
+
+    static {
+      DEFAULT_INSTANCE = new com.google.cloud.documentai.v1beta2.Document.Provenance();
+    }
+
+    public static com.google.cloud.documentai.v1beta2.Document.Provenance getDefaultInstance() {
+      return DEFAULT_INSTANCE;
+    }
+
+    private static final com.google.protobuf.Parser PARSER =
+        new com.google.protobuf.AbstractParser() {
+          @java.lang.Override
+          public Provenance parsePartialFrom(
+              com.google.protobuf.CodedInputStream input,
+              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+              throws com.google.protobuf.InvalidProtocolBufferException {
+            Builder builder = newBuilder();
+            try {
+              builder.mergeFrom(input, extensionRegistry);
+            } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+              throw e.setUnfinishedMessage(builder.buildPartial());
+            } catch (com.google.protobuf.UninitializedMessageException e) {
+              throw e.asInvalidProtocolBufferException()
+                  .setUnfinishedMessage(builder.buildPartial());
+            } catch (java.io.IOException e) {
+              throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                  .setUnfinishedMessage(builder.buildPartial());
+            }
+            return builder.buildPartial();
+          }
+        };
+
+    public static com.google.protobuf.Parser parser() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Parser getParserForType() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta2.Document.Provenance getDefaultInstanceForType() {
+      return DEFAULT_INSTANCE;
+    }
+  }
+
+  public interface RevisionOrBuilder
+      extends
+      // @@protoc_insertion_point(interface_extends:google.cloud.documentai.v1beta2.Document.Revision)
+      com.google.protobuf.MessageOrBuilder {
+
+    /**
+     *
+     *
+     * 
+     * If the change was made by a person specify the name or id of that
+     * person.
+     * 

+     *
+     * string agent = 4;
+     *
+     * @return Whether the agent field is set.
+     */
+    boolean hasAgent();
+    /**
+     *
+     *
+     * 
+     * If the change was made by a person specify the name or id of that
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+     * 

+     *
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+     *
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+     *
+     * 
+     * If the change was made by a person specify the name or id of that
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+     * string agent = 4;
+     *
+     * @return The bytes for agent.
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+    /**
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+     *
+     * 
+     * If the annotation was made by processor identify the processor by its
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+     *
+     * 
+     * If the annotation was made by processor identify the processor by its
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+     * 

+     *
+     * string processor = 5;
+     *
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+    /**
+     *
+     *
+     * 
+     * If the annotation was made by processor identify the processor by its
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+     * 

+     *
+     * string processor = 5;
+     *
+     * @return The bytes for processor.
+     */
+    com.google.protobuf.ByteString getProcessorBytes();
+
+    /**
+     *
+     *
+     * 
+     * Id of the revision, internally generated by doc proto storage.
+     * Unique within the context of the document.
+     * 

+     *
+     * string id = 1;
+     *
+     * @return The id.
+     */
+    java.lang.String getId();
+    /**
+     *
+     *
+     * 
+     * Id of the revision, internally generated by doc proto storage.
+     * Unique within the context of the document.
+     * 

+     *
+     * string id = 1;
+     *
+     * @return The bytes for id.
+     */
+    com.google.protobuf.ByteString getIdBytes();
 
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-    private java.util.List
-        textSegments_;
     /**
      *
      *
      * 
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-     * 
+     * repeated int32 parent = 2 [deprecated = true];
+     *
+     * @deprecated google.cloud.documentai.v1beta2.Document.Revision.parent is deprecated. See
+     *     google/cloud/documentai/v1beta2/document.proto;l=892
+     * @return A list containing the parent.
      */
-    @java.lang.Override
-    public java.util.List
-        getTextSegmentsList() {
-      return textSegments_;
-    }
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+    java.util.List getParentList();
     /**
      *
      *
      * 
-     * The text segments from the [Document.text][google.cloud.documentai.v1beta2.Document.text].
+     * The revisions that this revision is based on.  This can include one or
+     * more parent (when documents are merged.)  This field represents the
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      * 

      *
-     * 
-     * repeated .google.cloud.documentai.v1beta2.Document.TextAnchor.TextSegment text_segments = 1;
-     * 
+     * repeated int32 parent = 2 [deprecated = true];
+     *
+     * @deprecated google.cloud.documentai.v1beta2.Document.Revision.parent is deprecated. See
+     *     google/cloud/documentai/v1beta2/document.proto;l=892
+     * @return The count of parent.
      */
-    @java.lang.Override
-    public java.util.List<
-            ? extends com.google.cloud.documentai.v1beta2.Document.TextAnchor.TextSegmentOrBuilder>
-        getTextSegmentsOrBuilderList() {
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+    int getParentCount();
     /**
      *
      *
      * 
-     * The text segments from the [Document.text][google.cloud.documentai.v1beta2.Document.text].
+     * The revisions that this revision is based on.  This can include one or
+     * more parent (when documents are merged.)  This field represents the
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      * 

      *
-     * 
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-     * 
+     * repeated int32 parent = 2 [deprecated = true];
+     *
+     * @deprecated google.cloud.documentai.v1beta2.Document.Revision.parent is deprecated. See
+     *     google/cloud/documentai/v1beta2/document.proto;l=892
+     * @param index The index of the element to return.
+     * @return The parent at the given index.
      */
-    @java.lang.Override
-    public int getTextSegmentsCount() {
-      return textSegments_.size();
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+    @java.lang.Deprecated
+    int getParent(int index);
+
     /**
      *
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      * 
-     * The text segments from the [Document.text][google.cloud.documentai.v1beta2.Document.text].
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      * 

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-     * 
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-    public com.google.cloud.documentai.v1beta2.Document.TextAnchor.TextSegment getTextSegments(
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+    java.util.List getParentIdsList();
     /**
      *
      *
      * 
-     * The text segments from the [Document.text][google.cloud.documentai.v1beta2.Document.text].
+     * The revisions that this revision is based on. Must include all the ids
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      * 

      *
-     * 
-     * repeated .google.cloud.documentai.v1beta2.Document.TextAnchor.TextSegment text_segments = 1;
-     * 
+     * repeated string parent_ids = 7;
+     *
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-    public com.google.cloud.documentai.v1beta2.Document.TextAnchor.TextSegmentOrBuilder
-        getTextSegmentsOrBuilder(int index) {
-      return textSegments_.get(index);
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+    int getParentIdsCount();
+    /**
+     *
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+     * 
+     * The revisions that this revision is based on. Must include all the ids
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+     * `provenance.parent.revision` fields that index into this field.
+     * 

+     *
+     * repeated string parent_ids = 7;
+     *
+     * @param index The index of the element to return.
+     * @return The parentIds at the given index.
+     */
+    java.lang.String getParentIds(int index);
+    /**
+     *
+     *
+     * 
+     * The revisions that this revision is based on. Must include all the ids
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+     * 

+     *
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+     *
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+     * @return The bytes of the parentIds at the given index.
+     */
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-    public static final int CONTENT_FIELD_NUMBER = 2;
+    /**
+     *
+     *
+     * 
+     * The time that the revision was created, internally generated by
+     * doc proto storage at the time of create.
+     * 

+     *
+     * .google.protobuf.Timestamp create_time = 3;
+     *
+     * @return Whether the createTime field is set.
+     */
+    boolean hasCreateTime();
+    /**
+     *
+     *
+     * 
+     * The time that the revision was created, internally generated by
+     * doc proto storage at the time of create.
+     * 

+     *
+     * .google.protobuf.Timestamp create_time = 3;
+     *
+     * @return The createTime.
+     */
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+    /**
+     *
+     *
+     * 
+     * The time that the revision was created, internally generated by
+     * doc proto storage at the time of create.
+     * 

+     *
+     * .google.protobuf.Timestamp create_time = 3;
+     */
+    com.google.protobuf.TimestampOrBuilder getCreateTimeOrBuilder();
 
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     /**
      *
      *
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-     * Contains the content of the text span so that users do
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      * 

      *
-     * string content = 2;
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      *
-     * @return The content.
+     * @return Whether the humanReview field is set.
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-    public java.lang.String getContent() {
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     /**
      *
      *
      * 
-     * Contains the content of the text span so that users do
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      * 

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      *
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+    com.google.cloud.documentai.v1beta2.Document.Revision.SourceCase getSourceCase();
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+   * 

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-       * @return This builder for chaining.
-       */
-      public Builder setContent(java.lang.String value) {
-        if (value == null) {
-          throw new NullPointerException();
+    }
+
+    public static final int PROCESSOR_FIELD_NUMBER = 5;
+    /**
+     *
+     *
+     * 
+     * If the annotation was made by processor identify the processor by its
+     * resource name.
+     * 

+     *
+     * string processor = 5;
+     *
+     * @return Whether the processor field is set.
+     */
+    public boolean hasProcessor() {
+      return sourceCase_ == 5;
+    }
+    /**
+     *
+     *
+     * 
+     * If the annotation was made by processor identify the processor by its
+     * resource name.
+     * 

+     *
+     * string processor = 5;
+     *
+     * @return The processor.
+     */
+    public java.lang.String getProcessor() {
+      java.lang.Object ref = "";
+      if (sourceCase_ == 5) {
+        ref = source_;
+      }
+      if (ref instanceof java.lang.String) {
+        return (java.lang.String) ref;
+      } else {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        if (sourceCase_ == 5) {
+          source_ = s;
         }
-        content_ = value;
-        bitField0_ |= 0x00000002;
-        onChanged();
-        return this;
+        return s;
       }
-      /**
-       *
-       *
-       * 
-       * Contains the content of the text span so that users do
-       * not have to look it up in the text_segments.
-       * 

-       *
-       * string content = 2;
-       *
-       * @return This builder for chaining.
-       */
-      public Builder clearContent() {
-        content_ = getDefaultInstance().getContent();
-        bitField0_ = (bitField0_ & ~0x00000002);
-        onChanged();
-        return this;
+    }
+    /**
+     *
+     *
+     * 
+     * If the annotation was made by processor identify the processor by its
+     * resource name.
+     * 

+     *
+     * string processor = 5;
+     *
+     * @return The bytes for processor.
+     */
+    public com.google.protobuf.ByteString getProcessorBytes() {
+      java.lang.Object ref = "";
+      if (sourceCase_ == 5) {
+        ref = source_;
       }
-      /**
-       *
-       *
-       * 
-       * Contains the content of the text span so that users do
-       * not have to look it up in the text_segments.
-       * 

-       *
-       * string content = 2;
-       *
-       * @param value The bytes for content to set.
-       * @return This builder for chaining.
-       */
-      public Builder setContentBytes(com.google.protobuf.ByteString value) {
-        if (value == null) {
-          throw new NullPointerException();
+      if (ref instanceof java.lang.String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        if (sourceCase_ == 5) {
+          source_ = b;
         }
-        checkByteStringIsUtf8(value);
-        content_ = value;
-        bitField0_ |= 0x00000002;
-        onChanged();
-        return this;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
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+    }
 
-      @java.lang.Override
-      public final Builder setUnknownFields(
-          final com.google.protobuf.UnknownFieldSet unknownFields) {
-        return super.setUnknownFields(unknownFields);
-      }
+    public static final int ID_FIELD_NUMBER = 1;
 
-      @java.lang.Override
-      public final Builder mergeUnknownFields(
-          final com.google.protobuf.UnknownFieldSet unknownFields) {
-        return super.mergeUnknownFields(unknownFields);
+    @SuppressWarnings("serial")
+    private volatile java.lang.Object id_ = "";
+    /**
+     *
+     *
+     * 
+     * Id of the revision, internally generated by doc proto storage.
+     * Unique within the context of the document.
+     * 

+     *
+     * string id = 1;
+     *
+     * @return The id.
+     */
+    @java.lang.Override
+    public java.lang.String getId() {
+      java.lang.Object ref = id_;
+      if (ref instanceof java.lang.String) {
+        return (java.lang.String) ref;
+      } else {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        id_ = s;
+        return s;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Id of the revision, internally generated by doc proto storage.
+     * Unique within the context of the document.
+     * 

+     *
+     * string id = 1;
+     *
+     * @return The bytes for id.
+     */
+    @java.lang.Override
+    public com.google.protobuf.ByteString getIdBytes() {
+      java.lang.Object ref = id_;
+      if (ref instanceof java.lang.String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        id_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
       }
-
-      // @@protoc_insertion_point(builder_scope:google.cloud.documentai.v1beta2.Document.TextAnchor)
     }
 
-    // @@protoc_insertion_point(class_scope:google.cloud.documentai.v1beta2.Document.TextAnchor)
-    private static final com.google.cloud.documentai.v1beta2.Document.TextAnchor DEFAULT_INSTANCE;
+    public static final int PARENT_FIELD_NUMBER = 2;
 
-    static {
-      DEFAULT_INSTANCE = new com.google.cloud.documentai.v1beta2.Document.TextAnchor();
+    @SuppressWarnings("serial")
+    private com.google.protobuf.Internal.IntList parent_;
+    /**
+     *
+     *
+     * 
+     * The revisions that this revision is based on.  This can include one or
+     * more parent (when documents are merged.)  This field represents the
+     * index into the `revisions` field.
+     * 

+     *
+     * repeated int32 parent = 2 [deprecated = true];
+     *
+     * @deprecated google.cloud.documentai.v1beta2.Document.Revision.parent is deprecated. See
+     *     google/cloud/documentai/v1beta2/document.proto;l=892
+     * @return A list containing the parent.
+     */
+    @java.lang.Override
+    @java.lang.Deprecated
+    public java.util.List getParentList() {
+      return parent_;
     }
-
-    public static com.google.cloud.documentai.v1beta2.Document.TextAnchor getDefaultInstance() {
-      return DEFAULT_INSTANCE;
+    /**
+     *
+     *
+     * 
+     * The revisions that this revision is based on.  This can include one or
+     * more parent (when documents are merged.)  This field represents the
+     * index into the `revisions` field.
+     * 

+     *
+     * repeated int32 parent = 2 [deprecated = true];
+     *
+     * @deprecated google.cloud.documentai.v1beta2.Document.Revision.parent is deprecated. See
+     *     google/cloud/documentai/v1beta2/document.proto;l=892
+     * @return The count of parent.
+     */
+    @java.lang.Deprecated
+    public int getParentCount() {
+      return parent_.size();
+    }
+    /**
+     *
+     *
+     * 
+     * The revisions that this revision is based on.  This can include one or
+     * more parent (when documents are merged.)  This field represents the
+     * index into the `revisions` field.
+     * 

+     *
+     * repeated int32 parent = 2 [deprecated = true];
+     *
+     * @deprecated google.cloud.documentai.v1beta2.Document.Revision.parent is deprecated. See
+     *     google/cloud/documentai/v1beta2/document.proto;l=892
+     * @param index The index of the element to return.
+     * @return The parent at the given index.
+     */
+    @java.lang.Deprecated
+    public int getParent(int index) {
+      return parent_.getInt(index);
     }
 
-    private static final com.google.protobuf.Parser PARSER =
-        new com.google.protobuf.AbstractParser() {
-          @java.lang.Override
-          public TextAnchor parsePartialFrom(
-              com.google.protobuf.CodedInputStream input,
-              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-              throws com.google.protobuf.InvalidProtocolBufferException {
-            Builder builder = newBuilder();
-            try {
-              builder.mergeFrom(input, extensionRegistry);
-            } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-              throw e.setUnfinishedMessage(builder.buildPartial());
-            } catch (com.google.protobuf.UninitializedMessageException e) {
-              throw e.asInvalidProtocolBufferException()
-                  .setUnfinishedMessage(builder.buildPartial());
-            } catch (java.io.IOException e) {
-              throw new com.google.protobuf.InvalidProtocolBufferException(e)
-                  .setUnfinishedMessage(builder.buildPartial());
-            }
-            return builder.buildPartial();
-          }
-        };
+    private int parentMemoizedSerializedSize = -1;
 
-    public static com.google.protobuf.Parser parser() {
-      return PARSER;
-    }
+    public static final int PARENT_IDS_FIELD_NUMBER = 7;
 
-    @java.lang.Override
-    public com.google.protobuf.Parser getParserForType() {
-      return PARSER;
+    @SuppressWarnings("serial")
+    private com.google.protobuf.LazyStringArrayList parentIds_ =
+        com.google.protobuf.LazyStringArrayList.emptyList();
+    /**
+     *
+     *
+     * 
+     * The revisions that this revision is based on. Must include all the ids
+     * that have anything to do with this revision - eg. there are
+     * `provenance.parent.revision` fields that index into this field.
+     * 

+     *
+     * repeated string parent_ids = 7;
+     *
+     * @return A list containing the parentIds.
+     */
+    public com.google.protobuf.ProtocolStringList getParentIdsList() {
+      return parentIds_;
+    }
+    /**
+     *
+     *
+     * 
+     * The revisions that this revision is based on. Must include all the ids
+     * that have anything to do with this revision - eg. there are
+     * `provenance.parent.revision` fields that index into this field.
+     * 

+     *
+     * repeated string parent_ids = 7;
+     *
+     * @return The count of parentIds.
+     */
+    public int getParentIdsCount() {
+      return parentIds_.size();
+    }
+    /**
+     *
+     *
+     * 
+     * The revisions that this revision is based on. Must include all the ids
+     * that have anything to do with this revision - eg. there are
+     * `provenance.parent.revision` fields that index into this field.
+     * 

+     *
+     * repeated string parent_ids = 7;
+     *
+     * @param index The index of the element to return.
+     * @return The parentIds at the given index.
+     */
+    public java.lang.String getParentIds(int index) {
+      return parentIds_.get(index);
+    }
+    /**
+     *
+     *
+     * 
+     * The revisions that this revision is based on. Must include all the ids
+     * that have anything to do with this revision - eg. there are
+     * `provenance.parent.revision` fields that index into this field.
+     * 

+     *
+     * repeated string parent_ids = 7;
+     *
+     * @param index The index of the value to return.
+     * @return The bytes of the parentIds at the given index.
+     */
+    public com.google.protobuf.ByteString getParentIdsBytes(int index) {
+      return parentIds_.getByteString(index);
     }
 
+    public static final int CREATE_TIME_FIELD_NUMBER = 3;
+    private com.google.protobuf.Timestamp createTime_;
+    /**
+     *
+     *
+     * 
+     * The time that the revision was created, internally generated by
+     * doc proto storage at the time of create.
+     * 

+     *
+     * .google.protobuf.Timestamp create_time = 3;
+     *
+     * @return Whether the createTime field is set.
+     */
     @java.lang.Override
-    public com.google.cloud.documentai.v1beta2.Document.TextAnchor getDefaultInstanceForType() {
-      return DEFAULT_INSTANCE;
+    public boolean hasCreateTime() {
+      return createTime_ != null;
     }
-  }
-
-  public interface PageAnchorOrBuilder
-      extends
-      // @@protoc_insertion_point(interface_extends:google.cloud.documentai.v1beta2.Document.PageAnchor)
-      com.google.protobuf.MessageOrBuilder {
-
     /**
      *
      *
      * 
-     * One or more references to visual page elements
+     * The time that the revision was created, internally generated by
+     * doc proto storage at the time of create.
      * 

      *
-     * repeated .google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef page_refs = 1;
-     * 
+     * .google.protobuf.Timestamp create_time = 3;
+     *
+     * @return The createTime.
      */
-    java.util.List
-        getPageRefsList();
+    @java.lang.Override
+    public com.google.protobuf.Timestamp getCreateTime() {
+      return createTime_ == null ? com.google.protobuf.Timestamp.getDefaultInstance() : createTime_;
+    }
     /**
      *
      *
      * 
-     * One or more references to visual page elements
+     * The time that the revision was created, internally generated by
+     * doc proto storage at the time of create.
      * 

      *
-     * repeated .google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef page_refs = 1;
-     * 
+     * .google.protobuf.Timestamp create_time = 3;
      */
-    com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef getPageRefs(int index);
+    @java.lang.Override
+    public com.google.protobuf.TimestampOrBuilder getCreateTimeOrBuilder() {
+      return createTime_ == null ? com.google.protobuf.Timestamp.getDefaultInstance() : createTime_;
+    }
+
+    public static final int HUMAN_REVIEW_FIELD_NUMBER = 6;
+    private com.google.cloud.documentai.v1beta2.Document.Revision.HumanReview humanReview_;
     /**
      *
      *
      * 
-     * One or more references to visual page elements
+     * Human Review information of this revision.
      * 

      *
-     * repeated .google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef page_refs = 1;
-     * 
+     * .google.cloud.documentai.v1beta2.Document.Revision.HumanReview human_review = 6;
+     *
+     * @return Whether the humanReview field is set.
      */
-    int getPageRefsCount();
+    @java.lang.Override
+    public boolean hasHumanReview() {
+      return humanReview_ != null;
+    }
     /**
      *
      *
      * 
-     * One or more references to visual page elements
+     * Human Review information of this revision.
      * 

      *
-     * repeated .google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef page_refs = 1;
-     * 
+     * .google.cloud.documentai.v1beta2.Document.Revision.HumanReview human_review = 6;
+     *
+     * @return The humanReview.
      */
-    java.util.List<
-            ? extends com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRefOrBuilder>
-        getPageRefsOrBuilderList();
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta2.Document.Revision.HumanReview getHumanReview() {
+      return humanReview_ == null
+          ? com.google.cloud.documentai.v1beta2.Document.Revision.HumanReview.getDefaultInstance()
+          : humanReview_;
+    }
     /**
      *
      *
      * 
-     * One or more references to visual page elements
+     * Human Review information of this revision.
      * 

      *
-     * repeated .google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef page_refs = 1;
-     * 
+     * .google.cloud.documentai.v1beta2.Document.Revision.HumanReview human_review = 6;
      */
-    com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRefOrBuilder getPageRefsOrBuilder(
-        int index);
-  }
-  /**
-   *
-   *
-   * 
-   * Referencing elements in [Document.pages][google.cloud.documentai.v1beta2.Document.pages].
-   * 

-   *
-   * Protobuf type {@code google.cloud.documentai.v1beta2.Document.PageAnchor}
-   */
-  public static final class PageAnchor extends com.google.protobuf.GeneratedMessageV3
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-      // @@protoc_insertion_point(message_implements:google.cloud.documentai.v1beta2.Document.PageAnchor)
-      PageAnchorOrBuilder {
-    private static final long serialVersionUID = 0L;
-    // Use PageAnchor.newBuilder() to construct.
-    private PageAnchor(com.google.protobuf.GeneratedMessageV3.Builder builder) {
-      super(builder);
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta2.Document.Revision.HumanReviewOrBuilder
+        getHumanReviewOrBuilder() {
+      return humanReview_ == null
+          ? com.google.cloud.documentai.v1beta2.Document.Revision.HumanReview.getDefaultInstance()
+          : humanReview_;
     }
 
-    private PageAnchor() {
-      pageRefs_ = java.util.Collections.emptyList();
+    private byte memoizedIsInitialized = -1;
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      byte isInitialized = memoizedIsInitialized;
+      if (isInitialized == 1) return true;
+      if (isInitialized == 0) return false;
+
+      memoizedIsInitialized = 1;
+      return true;
     }
 
     @java.lang.Override
-    @SuppressWarnings({"unused"})
-    protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
-      return new PageAnchor();
+    public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+      getSerializedSize();
+      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(id_)) {
+        com.google.protobuf.GeneratedMessageV3.writeString(output, 1, id_);
+      }
+      if (getParentList().size() > 0) {
+        output.writeUInt32NoTag(18);
+        output.writeUInt32NoTag(parentMemoizedSerializedSize);
+      }
+      for (int i = 0; i < parent_.size(); i++) {
+        output.writeInt32NoTag(parent_.getInt(i));
+      }
+      if (createTime_ != null) {
+        output.writeMessage(3, getCreateTime());
+      }
+      if (sourceCase_ == 4) {
+        com.google.protobuf.GeneratedMessageV3.writeString(output, 4, source_);
+      }
+      if (sourceCase_ == 5) {
+        com.google.protobuf.GeneratedMessageV3.writeString(output, 5, source_);
+      }
+      if (humanReview_ != null) {
+        output.writeMessage(6, getHumanReview());
+      }
+      for (int i = 0; i < parentIds_.size(); i++) {
+        com.google.protobuf.GeneratedMessageV3.writeString(output, 7, parentIds_.getRaw(i));
+      }
+      getUnknownFields().writeTo(output);
     }
 
-    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
-      return com.google.cloud.documentai.v1beta2.DocumentProto
-          .internal_static_google_cloud_documentai_v1beta2_Document_PageAnchor_descriptor;
+    @java.lang.Override
+    public int getSerializedSize() {
+      int size = memoizedSize;
+      if (size != -1) return size;
+
+      size = 0;
+      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(id_)) {
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+        for (int i = 0; i < parent_.size(); i++) {
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+        size += dataSize;
+        if (!getParentList().isEmpty()) {
+          size += 1;
+          size += com.google.protobuf.CodedOutputStream.computeInt32SizeNoTag(dataSize);
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+        parentMemoizedSerializedSize = dataSize;
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+      if (createTime_ != null) {
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+      if (sourceCase_ == 4) {
+        size += com.google.protobuf.GeneratedMessageV3.computeStringSize(4, source_);
+      }
+      if (sourceCase_ == 5) {
+        size += com.google.protobuf.GeneratedMessageV3.computeStringSize(5, source_);
+      }
+      if (humanReview_ != null) {
+        size += com.google.protobuf.CodedOutputStream.computeMessageSize(6, getHumanReview());
+      }
+      {
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+        for (int i = 0; i < parentIds_.size(); i++) {
+          dataSize += computeStringSizeNoTag(parentIds_.getRaw(i));
+        }
+        size += dataSize;
+        size += 1 * getParentIdsList().size();
+      }
+      size += getUnknownFields().getSerializedSize();
+      memoizedSize = size;
+      return size;
     }
 
     @java.lang.Override
-    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
-        internalGetFieldAccessorTable() {
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-          .internal_static_google_cloud_documentai_v1beta2_Document_PageAnchor_fieldAccessorTable
-          .ensureFieldAccessorsInitialized(
-              com.google.cloud.documentai.v1beta2.Document.PageAnchor.class,
-              com.google.cloud.documentai.v1beta2.Document.PageAnchor.Builder.class);
+    public boolean equals(final java.lang.Object obj) {
+      if (obj == this) {
+        return true;
+      }
+      if (!(obj instanceof com.google.cloud.documentai.v1beta2.Document.Revision)) {
+        return super.equals(obj);
+      }
+      com.google.cloud.documentai.v1beta2.Document.Revision other =
+          (com.google.cloud.documentai.v1beta2.Document.Revision) obj;
+
+      if (!getId().equals(other.getId())) return false;
+      if (!getParentList().equals(other.getParentList())) return false;
+      if (!getParentIdsList().equals(other.getParentIdsList())) return false;
+      if (hasCreateTime() != other.hasCreateTime()) return false;
+      if (hasCreateTime()) {
+        if (!getCreateTime().equals(other.getCreateTime())) return false;
+      }
+      if (hasHumanReview() != other.hasHumanReview()) return false;
+      if (hasHumanReview()) {
+        if (!getHumanReview().equals(other.getHumanReview())) return false;
+      }
+      if (!getSourceCase().equals(other.getSourceCase())) return false;
+      switch (sourceCase_) {
+        case 4:
+          if (!getAgent().equals(other.getAgent())) return false;
+          break;
+        case 5:
+          if (!getProcessor().equals(other.getProcessor())) return false;
+          break;
+        case 0:
+        default:
+      }
+      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
+      return true;
     }
 
-    public interface PageRefOrBuilder
-        extends
-        // @@protoc_insertion_point(interface_extends:google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef)
-        com.google.protobuf.MessageOrBuilder {
+    @java.lang.Override
+    public int hashCode() {
+      if (memoizedHashCode != 0) {
+        return memoizedHashCode;
+      }
+      int hash = 41;
+      hash = (19 * hash) + getDescriptor().hashCode();
+      hash = (37 * hash) + ID_FIELD_NUMBER;
+      hash = (53 * hash) + getId().hashCode();
+      if (getParentCount() > 0) {
+        hash = (37 * hash) + PARENT_FIELD_NUMBER;
+        hash = (53 * hash) + getParentList().hashCode();
+      }
+      if (getParentIdsCount() > 0) {
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+        hash = (53 * hash) + getParentIdsList().hashCode();
+      }
+      if (hasCreateTime()) {
+        hash = (37 * hash) + CREATE_TIME_FIELD_NUMBER;
+        hash = (53 * hash) + getCreateTime().hashCode();
+      }
+      if (hasHumanReview()) {
+        hash = (37 * hash) + HUMAN_REVIEW_FIELD_NUMBER;
+        hash = (53 * hash) + getHumanReview().hashCode();
+      }
+      switch (sourceCase_) {
+        case 4:
+          hash = (37 * hash) + AGENT_FIELD_NUMBER;
+          hash = (53 * hash) + getAgent().hashCode();
+          break;
+        case 5:
+          hash = (37 * hash) + PROCESSOR_FIELD_NUMBER;
+          hash = (53 * hash) + getProcessor().hashCode();
+          break;
+        case 0:
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+      }
+      hash = (29 * hash) + getUnknownFields().hashCode();
+      memoizedHashCode = hash;
+      return hash;
+    }
+
+    public static com.google.cloud.documentai.v1beta2.Document.Revision parseFrom(
+        java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.documentai.v1beta2.Document.Revision parseFrom(
+        java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.documentai.v1beta2.Document.Revision parseFrom(
+        com.google.protobuf.ByteString data)
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+       * If the change was made by a person specify the name or id of that
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+       * 
+       * If the change was made by a person specify the name or id of that
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+       * @return This builder for chaining.
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+      public Builder setAgent(java.lang.String value) {
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       /**
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       /**
        *
        *
        * 
-       * Optional. The type of the layout element that is being referenced.  If not
-       * specified the whole page is assumed to be referenced.
+       * If the change was made by a person specify the name or id of that
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        *
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-       * .google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef.LayoutType layout_type = 2 [(.google.api.field_behavior) = OPTIONAL];
-       * 
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+       * @param value The bytes for agent to set.
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       /**
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-       * Optional. The type of the layout element that is being referenced.  If not
-       * specified the whole page is assumed to be referenced.
+       * If the annotation was made by processor identify the processor by its
+       * resource name.
        * 

        *
-       * 
-       * .google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef.LayoutType layout_type = 2 [(.google.api.field_behavior) = OPTIONAL];
-       * 
+       * string processor = 5;
        *
-       * @return The layoutType.
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       @java.lang.Override
-      public com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef.LayoutType
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-        return result == null
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-      public static final int LAYOUT_ID_FIELD_NUMBER = 3;
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-       * specified.
+       * If the annotation was made by processor identify the processor by its
+       * resource name.
        * 

        *
-       * string layout_id = 3 [(.google.api.field_behavior) = OPTIONAL];
+       * string processor = 5;
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-       * @return The layoutId.
+       * @return The processor.
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-        java.lang.Object ref = layoutId_;
-        if (ref instanceof java.lang.String) {
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           com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
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-          layoutId_ = s;
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           return s;
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       /**
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-       * specified.
+       * If the annotation was made by processor identify the processor by its
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        * 

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-       * string layout_id = 3 [(.google.api.field_behavior) = OPTIONAL];
+       * string processor = 5;
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       @java.lang.Override
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-        if (ref instanceof java.lang.String) {
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+        if (sourceCase_ == 5) {
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+        }
+        if (ref instanceof String) {
           com.google.protobuf.ByteString b =
               com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
-          layoutId_ = b;
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           return b;
         } else {
           return (com.google.protobuf.ByteString) ref;
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+       * 
+       * If the annotation was made by processor identify the processor by its
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+       * 

+       *
+       * string processor = 5;
+       *
+       * @param value The processor to set.
+       * @return This builder for chaining.
+       */
+      public Builder setProcessor(java.lang.String value) {
+        if (value == null) {
+          throw new NullPointerException();
         }
-        getUnknownFields().writeTo(output);
+        sourceCase_ = 5;
+        source_ = value;
+        onChanged();
+        return this;
       }
-
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+      /**
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+       *
+       * 
+       * If the annotation was made by processor identify the processor by its
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+       * 

+       *
+       * string processor = 5;
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+      public Builder clearProcessor() {
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+       *
+       *
+       * 
+       * If the annotation was made by processor identify the processor by its
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+       * 

+       *
+       * string processor = 5;
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+       * @return This builder for chaining.
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-        if (!(obj instanceof com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef)) {
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+      private java.lang.Object id_ = "";
+      /**
+       *
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+       * 
+       * Id of the revision, internally generated by doc proto storage.
+       * Unique within the context of the document.
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+       *
+       * string id = 1;
+       *
+       * @return The id.
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       }
-
-      @java.lang.Override
-      public int hashCode() {
-        if (memoizedHashCode != 0) {
-          return memoizedHashCode;
+      /**
+       *
+       *
+       * 
+       * Id of the revision, internally generated by doc proto storage.
+       * Unique within the context of the document.
+       * 

+       *
+       * string id = 1;
+       *
+       * @return The bytes for id.
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+        java.lang.Object ref = id_;
+        if (ref instanceof String) {
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-        return PARSER.parseFrom(data);
+      /**
+       *
+       *
+       * 
+       * Id of the revision, internally generated by doc proto storage.
+       * Unique within the context of the document.
+       * 

+       *
+       * string id = 1;
+       *
+       * @param value The id to set.
+       * @return This builder for chaining.
+       */
+      public Builder setId(java.lang.String value) {
+        if (value == null) {
+          throw new NullPointerException();
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+        id_ = value;
+        bitField0_ |= 0x00000004;
+        onChanged();
+        return this;
       }
-
-      public static com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef parseFrom(
-          java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-          throws com.google.protobuf.InvalidProtocolBufferException {
-        return PARSER.parseFrom(data, extensionRegistry);
+      /**
+       *
+       *
+       * 
+       * Id of the revision, internally generated by doc proto storage.
+       * Unique within the context of the document.
+       * 

+       *
+       * string id = 1;
+       *
+       * @return This builder for chaining.
+       */
+      public Builder clearId() {
+        id_ = getDefaultInstance().getId();
+        bitField0_ = (bitField0_ & ~0x00000004);
+        onChanged();
+        return this;
       }
-
-      public static com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef parseFrom(
-          com.google.protobuf.ByteString data)
-          throws com.google.protobuf.InvalidProtocolBufferException {
-        return PARSER.parseFrom(data);
+      /**
+       *
+       *
+       * 
+       * Id of the revision, internally generated by doc proto storage.
+       * Unique within the context of the document.
+       * 

+       *
+       * string id = 1;
+       *
+       * @param value The bytes for id to set.
+       * @return This builder for chaining.
+       */
+      public Builder setIdBytes(com.google.protobuf.ByteString value) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        checkByteStringIsUtf8(value);
+        id_ = value;
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+        onChanged();
+        return this;
       }
 
-      public static com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef parseFrom(
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-          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-          throws com.google.protobuf.InvalidProtocolBufferException {
-        return PARSER.parseFrom(data, extensionRegistry);
-      }
+      private com.google.protobuf.Internal.IntList parent_ = emptyIntList();
 
-      public static com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef parseFrom(
-          byte[] data) throws com.google.protobuf.InvalidProtocolBufferException {
-        return PARSER.parseFrom(data);
+      private void ensureParentIsMutable() {
+        if (!((bitField0_ & 0x00000008) != 0)) {
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-          byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-          throws com.google.protobuf.InvalidProtocolBufferException {
-        return PARSER.parseFrom(data, extensionRegistry);
+      /**
+       *
+       *
+       * 
+       * The revisions that this revision is based on.  This can include one or
+       * more parent (when documents are merged.)  This field represents the
+       * index into the `revisions` field.
+       * 

+       *
+       * repeated int32 parent = 2 [deprecated = true];
+       *
+       * @deprecated google.cloud.documentai.v1beta2.Document.Revision.parent is deprecated. See
+       *     google/cloud/documentai/v1beta2/document.proto;l=892
+       * @return A list containing the parent.
+       */
+      @java.lang.Deprecated
+      public java.util.List getParentList() {
+        return ((bitField0_ & 0x00000008) != 0)
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       }
-
-      public static com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef parseFrom(
-          java.io.InputStream input) throws java.io.IOException {
-        return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+      /**
+       *
+       *
+       * 
+       * The revisions that this revision is based on.  This can include one or
+       * more parent (when documents are merged.)  This field represents the
+       * index into the `revisions` field.
+       * 

+       *
+       * repeated int32 parent = 2 [deprecated = true];
+       *
+       * @deprecated google.cloud.documentai.v1beta2.Document.Revision.parent is deprecated. See
+       *     google/cloud/documentai/v1beta2/document.proto;l=892
+       * @return The count of parent.
+       */
+      @java.lang.Deprecated
+      public int getParentCount() {
+        return parent_.size();
       }
-
-      public static com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef parseFrom(
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-          throws java.io.IOException {
-        return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
-            PARSER, input, extensionRegistry);
+      /**
+       *
+       *
+       * 
+       * The revisions that this revision is based on.  This can include one or
+       * more parent (when documents are merged.)  This field represents the
+       * index into the `revisions` field.
+       * 

+       *
+       * repeated int32 parent = 2 [deprecated = true];
+       *
+       * @deprecated google.cloud.documentai.v1beta2.Document.Revision.parent is deprecated. See
+       *     google/cloud/documentai/v1beta2/document.proto;l=892
+       * @param index The index of the element to return.
+       * @return The parent at the given index.
+       */
+      @java.lang.Deprecated
+      public int getParent(int index) {
+        return parent_.getInt(index);
       }
+      /**
+       *
+       *
+       * 
+       * The revisions that this revision is based on.  This can include one or
+       * more parent (when documents are merged.)  This field represents the
+       * index into the `revisions` field.
+       * 

+       *
+       * repeated int32 parent = 2 [deprecated = true];
+       *
+       * @deprecated google.cloud.documentai.v1beta2.Document.Revision.parent is deprecated. See
+       *     google/cloud/documentai/v1beta2/document.proto;l=892
+       * @param index The index to set the value at.
+       * @param value The parent to set.
+       * @return This builder for chaining.
+       */
+      @java.lang.Deprecated
+      public Builder setParent(int index, int value) {
 
-      public static com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef
-          parseDelimitedFrom(java.io.InputStream input) throws java.io.IOException {
-        return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+        ensureParentIsMutable();
+        parent_.setInt(index, value);
+        onChanged();
+        return this;
       }
+      /**
+       *
+       *
+       * 
+       * The revisions that this revision is based on.  This can include one or
+       * more parent (when documents are merged.)  This field represents the
+       * index into the `revisions` field.
+       * 

+       *
+       * repeated int32 parent = 2 [deprecated = true];
+       *
+       * @deprecated google.cloud.documentai.v1beta2.Document.Revision.parent is deprecated. See
+       *     google/cloud/documentai/v1beta2/document.proto;l=892
+       * @param value The parent to add.
+       * @return This builder for chaining.
+       */
+      @java.lang.Deprecated
+      public Builder addParent(int value) {
 
-      public static com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef
-          parseDelimitedFrom(
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-              throws java.io.IOException {
-        return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
-            PARSER, input, extensionRegistry);
+        ensureParentIsMutable();
+        parent_.addInt(value);
+        onChanged();
+        return this;
       }
-
-      public static com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef parseFrom(
-          com.google.protobuf.CodedInputStream input) throws java.io.IOException {
-        return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+      /**
+       *
+       *
+       * 
+       * The revisions that this revision is based on.  This can include one or
+       * more parent (when documents are merged.)  This field represents the
+       * index into the `revisions` field.
+       * 

+       *
+       * repeated int32 parent = 2 [deprecated = true];
+       *
+       * @deprecated google.cloud.documentai.v1beta2.Document.Revision.parent is deprecated. See
+       *     google/cloud/documentai/v1beta2/document.proto;l=892
+       * @param values The parent to add.
+       * @return This builder for chaining.
+       */
+      @java.lang.Deprecated
+      public Builder addAllParent(java.lang.Iterable values) {
+        ensureParentIsMutable();
+        com.google.protobuf.AbstractMessageLite.Builder.addAll(values, parent_);
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+      /**
+       *
+       *
+       * 
+       * The revisions that this revision is based on.  This can include one or
+       * more parent (when documents are merged.)  This field represents the
+       * index into the `revisions` field.
+       * 

+       *
+       * repeated int32 parent = 2 [deprecated = true];
+       *
+       * @deprecated google.cloud.documentai.v1beta2.Document.Revision.parent is deprecated. See
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+       * @return This builder for chaining.
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-          com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef prototype) {
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+      /**
+       *
+       *
+       * 
+       * The revisions that this revision is based on. Must include all the ids
+       * that have anything to do with this revision - eg. there are
+       * `provenance.parent.revision` fields that index into this field.
+       * 

+       *
+       * repeated string parent_ids = 7;
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-      @java.lang.Override
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-        return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+      /**
+       *
+       *
+       * 
+       * The revisions that this revision is based on. Must include all the ids
+       * that have anything to do with this revision - eg. there are
+       * `provenance.parent.revision` fields that index into this field.
+       * 

+       *
+       * repeated string parent_ids = 7;
+       *
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+       *
+       *
+       * 
+       * The revisions that this revision is based on. Must include all the ids
+       * that have anything to do with this revision - eg. there are
+       * `provenance.parent.revision` fields that index into this field.
+       * 

+       *
+       * repeated string parent_ids = 7;
+       *
+       * @param index The index of the element to return.
+       * @return The parentIds at the given index.
+       */
+      public java.lang.String getParentIds(int index) {
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       /**
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        * 
-       * Represents a weak reference to a page element within a document.
+       * The revisions that this revision is based on. Must include all the ids
+       * that have anything to do with this revision - eg. there are
+       * `provenance.parent.revision` fields that index into this field.
        * 

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-       * Protobuf type {@code google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef}
+       * repeated string parent_ids = 7;
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+      /**
+       *
+       *
+       * 
+       * The revisions that this revision is based on. Must include all the ids
+       * that have anything to do with this revision - eg. there are
+       * `provenance.parent.revision` fields that index into this field.
+       * 

+       *
+       * repeated string parent_ids = 7;
+       *
+       * @param index The index to set the value at.
+       * @param value The parentIds to set.
+       * @return This builder for chaining.
+       */
+      public Builder setParentIds(int index, java.lang.String value) {
+        if (value == null) {
+          throw new NullPointerException();
         }
-        /**
-         *
-         *
-         * 
-         * Required. Index into the [Document.pages][google.cloud.documentai.v1beta2.Document.pages] element
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-         *
-         * int64 page = 1 [(.google.api.field_behavior) = REQUIRED];
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-         */
-        public Builder setPage(long value) {
-
-          page_ = value;
-          bitField0_ |= 0x00000001;
-          onChanged();
-          return this;
+        ensureParentIdsIsMutable();
+        parentIds_.set(index, value);
+        bitField0_ |= 0x00000010;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * The revisions that this revision is based on. Must include all the ids
+       * that have anything to do with this revision - eg. there are
+       * `provenance.parent.revision` fields that index into this field.
+       * 

+       *
+       * repeated string parent_ids = 7;
+       *
+       * @param value The parentIds to add.
+       * @return This builder for chaining.
+       */
+      public Builder addParentIds(java.lang.String value) {
+        if (value == null) {
+          throw new NullPointerException();
         }
-        /**
-         *
-         *
-         * 
-         * Required. Index into the [Document.pages][google.cloud.documentai.v1beta2.Document.pages] element
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-         *
-         * int64 page = 1 [(.google.api.field_behavior) = REQUIRED];
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-         */
-        public Builder clearPage() {
-          bitField0_ = (bitField0_ & ~0x00000001);
-          page_ = 0L;
-          onChanged();
-          return this;
+        ensureParentIdsIsMutable();
+        parentIds_.add(value);
+        bitField0_ |= 0x00000010;
+        onChanged();
+        return this;
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+      /**
+       *
+       *
+       * 
+       * The revisions that this revision is based on. Must include all the ids
+       * that have anything to do with this revision - eg. there are
+       * `provenance.parent.revision` fields that index into this field.
+       * 

+       *
+       * repeated string parent_ids = 7;
+       *
+       * @param values The parentIds to add.
+       * @return This builder for chaining.
+       */
+      public Builder addAllParentIds(java.lang.Iterable values) {
+        ensureParentIdsIsMutable();
+        com.google.protobuf.AbstractMessageLite.Builder.addAll(values, parentIds_);
+        bitField0_ |= 0x00000010;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * The revisions that this revision is based on. Must include all the ids
+       * that have anything to do with this revision - eg. there are
+       * `provenance.parent.revision` fields that index into this field.
+       * 

+       *
+       * repeated string parent_ids = 7;
+       *
+       * @return This builder for chaining.
+       */
+      public Builder clearParentIds() {
+        parentIds_ = com.google.protobuf.LazyStringArrayList.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000010);
+        ;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * The revisions that this revision is based on. Must include all the ids
+       * that have anything to do with this revision - eg. there are
+       * `provenance.parent.revision` fields that index into this field.
+       * 

+       *
+       * repeated string parent_ids = 7;
+       *
+       * @param value The bytes of the parentIds to add.
+       * @return This builder for chaining.
+       */
+      public Builder addParentIdsBytes(com.google.protobuf.ByteString value) {
+        if (value == null) {
+          throw new NullPointerException();
         }
+        checkByteStringIsUtf8(value);
+        ensureParentIdsIsMutable();
+        parentIds_.add(value);
+        bitField0_ |= 0x00000010;
+        onChanged();
+        return this;
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-        private int layoutType_ = 0;
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-         * 

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-         * specified the whole page is assumed to be referenced.
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-         */
-        public Builder clearLayoutType() {
-          bitField0_ = (bitField0_ & ~0x00000002);
-          layoutType_ = 0;
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-          return this;
+      private com.google.protobuf.Timestamp createTime_;
+      private com.google.protobuf.SingleFieldBuilderV3<
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+       *
+       *
+       * 
+       * The time that the revision was created, internally generated by
+       * doc proto storage at the time of create.
+       * 

+       *
+       * .google.protobuf.Timestamp create_time = 3;
+       *
+       * @return Whether the createTime field is set.
+       */
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+      /**
+       *
+       *
+       * 
+       * The time that the revision was created, internally generated by
+       * doc proto storage at the time of create.
+       * 

+       *
+       * .google.protobuf.Timestamp create_time = 3;
+       *
+       * @return The createTime.
+       */
+      public com.google.protobuf.Timestamp getCreateTime() {
+        if (createTimeBuilder_ == null) {
+          return createTime_ == null
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+              : createTime_;
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-
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-            java.lang.String s = bs.toStringUtf8();
-            layoutId_ = s;
-            return s;
-          } else {
-            return (java.lang.String) ref;
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+      /**
+       *
+       *
+       * 
+       * The time that the revision was created, internally generated by
+       * doc proto storage at the time of create.
+       * 

+       *
+       * .google.protobuf.Timestamp create_time = 3;
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+      public Builder setCreateTime(com.google.protobuf.Timestamp value) {
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-        /**
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-            com.google.protobuf.ByteString b =
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-            layoutId_ = b;
-            return b;
+        bitField0_ |= 0x00000020;
+        onChanged();
+        return this;
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+      /**
+       *
+       *
+       * 
+       * The time that the revision was created, internally generated by
+       * doc proto storage at the time of create.
+       * 

+       *
+       * .google.protobuf.Timestamp create_time = 3;
+       */
+      public Builder setCreateTime(com.google.protobuf.Timestamp.Builder builderForValue) {
+        if (createTimeBuilder_ == null) {
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+          createTimeBuilder_.setMessage(builderForValue.build());
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+        bitField0_ |= 0x00000020;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * The time that the revision was created, internally generated by
+       * doc proto storage at the time of create.
+       * 

+       *
+       * .google.protobuf.Timestamp create_time = 3;
+       */
+      public Builder mergeCreateTime(com.google.protobuf.Timestamp value) {
+        if (createTimeBuilder_ == null) {
+          if (((bitField0_ & 0x00000020) != 0)
+              && createTime_ != null
+              && createTime_ != com.google.protobuf.Timestamp.getDefaultInstance()) {
+            getCreateTimeBuilder().mergeFrom(value);
           } else {
-            return (com.google.protobuf.ByteString) ref;
+            createTime_ = value;
           }
+        } else {
+          createTimeBuilder_.mergeFrom(value);
         }
-        /**
-         *
-         *
-         * 
-         * Optional. The [Page.Layout.id][google.cloud.documentai.v1beta2.Document.Page.Layout.id] on the page that this element
-         * references.  If [LayoutRef.type][] is specified this id must also be
-         * specified.
-         * 

-         *
-         * string layout_id = 3 [(.google.api.field_behavior) = OPTIONAL];
-         *
-         * @param value The layoutId to set.
-         * @return This builder for chaining.
-         */
-        public Builder setLayoutId(java.lang.String value) {
+        bitField0_ |= 0x00000020;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * The time that the revision was created, internally generated by
+       * doc proto storage at the time of create.
+       * 

+       *
+       * .google.protobuf.Timestamp create_time = 3;
+       */
+      public Builder clearCreateTime() {
+        bitField0_ = (bitField0_ & ~0x00000020);
+        createTime_ = null;
+        if (createTimeBuilder_ != null) {
+          createTimeBuilder_.dispose();
+          createTimeBuilder_ = null;
+        }
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * The time that the revision was created, internally generated by
+       * doc proto storage at the time of create.
+       * 

+       *
+       * .google.protobuf.Timestamp create_time = 3;
+       */
+      public com.google.protobuf.Timestamp.Builder getCreateTimeBuilder() {
+        bitField0_ |= 0x00000020;
+        onChanged();
+        return getCreateTimeFieldBuilder().getBuilder();
+      }
+      /**
+       *
+       *
+       * 
+       * The time that the revision was created, internally generated by
+       * doc proto storage at the time of create.
+       * 

+       *
+       * .google.protobuf.Timestamp create_time = 3;
+       */
+      public com.google.protobuf.TimestampOrBuilder getCreateTimeOrBuilder() {
+        if (createTimeBuilder_ != null) {
+          return createTimeBuilder_.getMessageOrBuilder();
+        } else {
+          return createTime_ == null
+              ? com.google.protobuf.Timestamp.getDefaultInstance()
+              : createTime_;
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * The time that the revision was created, internally generated by
+       * doc proto storage at the time of create.
+       * 

+       *
+       * .google.protobuf.Timestamp create_time = 3;
+       */
+      private com.google.protobuf.SingleFieldBuilderV3<
+              com.google.protobuf.Timestamp,
+              com.google.protobuf.Timestamp.Builder,
+              com.google.protobuf.TimestampOrBuilder>
+          getCreateTimeFieldBuilder() {
+        if (createTimeBuilder_ == null) {
+          createTimeBuilder_ =
+              new com.google.protobuf.SingleFieldBuilderV3<
+                  com.google.protobuf.Timestamp,
+                  com.google.protobuf.Timestamp.Builder,
+                  com.google.protobuf.TimestampOrBuilder>(
+                  getCreateTime(), getParentForChildren(), isClean());
+          createTime_ = null;
+        }
+        return createTimeBuilder_;
+      }
+
+      private com.google.cloud.documentai.v1beta2.Document.Revision.HumanReview humanReview_;
+      private com.google.protobuf.SingleFieldBuilderV3<
+              com.google.cloud.documentai.v1beta2.Document.Revision.HumanReview,
+              com.google.cloud.documentai.v1beta2.Document.Revision.HumanReview.Builder,
+              com.google.cloud.documentai.v1beta2.Document.Revision.HumanReviewOrBuilder>
+          humanReviewBuilder_;
+      /**
+       *
+       *
+       * 
+       * Human Review information of this revision.
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Revision.HumanReview human_review = 6;
+       * 
+       *
+       * @return Whether the humanReview field is set.
+       */
+      public boolean hasHumanReview() {
+        return ((bitField0_ & 0x00000040) != 0);
+      }
+      /**
+       *
+       *
+       * 
+       * Human Review information of this revision.
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Revision.HumanReview human_review = 6;
+       * 
+       *
+       * @return The humanReview.
+       */
+      public com.google.cloud.documentai.v1beta2.Document.Revision.HumanReview getHumanReview() {
+        if (humanReviewBuilder_ == null) {
+          return humanReview_ == null
+              ? com.google.cloud.documentai.v1beta2.Document.Revision.HumanReview
+                  .getDefaultInstance()
+              : humanReview_;
+        } else {
+          return humanReviewBuilder_.getMessage();
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * Human Review information of this revision.
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Revision.HumanReview human_review = 6;
+       * 
+       */
+      public Builder setHumanReview(
+          com.google.cloud.documentai.v1beta2.Document.Revision.HumanReview value) {
+        if (humanReviewBuilder_ == null) {
           if (value == null) {
             throw new NullPointerException();
           }
-          layoutId_ = value;
-          bitField0_ |= 0x00000004;
-          onChanged();
-          return this;
+          humanReview_ = value;
+        } else {
+          humanReviewBuilder_.setMessage(value);
         }
-        /**
-         *
-         *
-         * 
-         * Optional. The [Page.Layout.id][google.cloud.documentai.v1beta2.Document.Page.Layout.id] on the page that this element
-         * references.  If [LayoutRef.type][] is specified this id must also be
-         * specified.
-         * 

-         *
-         * string layout_id = 3 [(.google.api.field_behavior) = OPTIONAL];
-         *
-         * @return This builder for chaining.
-         */
-        public Builder clearLayoutId() {
-          layoutId_ = getDefaultInstance().getLayoutId();
-          bitField0_ = (bitField0_ & ~0x00000004);
-          onChanged();
-          return this;
+        bitField0_ |= 0x00000040;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * Human Review information of this revision.
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Revision.HumanReview human_review = 6;
+       * 
+       */
+      public Builder setHumanReview(
+          com.google.cloud.documentai.v1beta2.Document.Revision.HumanReview.Builder
+              builderForValue) {
+        if (humanReviewBuilder_ == null) {
+          humanReview_ = builderForValue.build();
+        } else {
+          humanReviewBuilder_.setMessage(builderForValue.build());
         }
-        /**
-         *
-         *
-         * 
-         * Optional. The [Page.Layout.id][google.cloud.documentai.v1beta2.Document.Page.Layout.id] on the page that this element
-         * references.  If [LayoutRef.type][] is specified this id must also be
-         * specified.
-         * 

-         *
-         * string layout_id = 3 [(.google.api.field_behavior) = OPTIONAL];
-         *
-         * @param value The bytes for layoutId to set.
-         * @return This builder for chaining.
-         */
-        public Builder setLayoutIdBytes(com.google.protobuf.ByteString value) {
-          if (value == null) {
-            throw new NullPointerException();
+        bitField0_ |= 0x00000040;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * Human Review information of this revision.
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Revision.HumanReview human_review = 6;
+       * 
+       */
+      public Builder mergeHumanReview(
+          com.google.cloud.documentai.v1beta2.Document.Revision.HumanReview value) {
+        if (humanReviewBuilder_ == null) {
+          if (((bitField0_ & 0x00000040) != 0)
+              && humanReview_ != null
+              && humanReview_
+                  != com.google.cloud.documentai.v1beta2.Document.Revision.HumanReview
+                      .getDefaultInstance()) {
+            getHumanReviewBuilder().mergeFrom(value);
+          } else {
+            humanReview_ = value;
           }
-          checkByteStringIsUtf8(value);
-          layoutId_ = value;
-          bitField0_ |= 0x00000004;
-          onChanged();
-          return this;
+        } else {
+          humanReviewBuilder_.mergeFrom(value);
         }
-
-        @java.lang.Override
-        public final Builder setUnknownFields(
-            final com.google.protobuf.UnknownFieldSet unknownFields) {
-          return super.setUnknownFields(unknownFields);
+        bitField0_ |= 0x00000040;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * Human Review information of this revision.
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Revision.HumanReview human_review = 6;
+       * 
+       */
+      public Builder clearHumanReview() {
+        bitField0_ = (bitField0_ & ~0x00000040);
+        humanReview_ = null;
+        if (humanReviewBuilder_ != null) {
+          humanReviewBuilder_.dispose();
+          humanReviewBuilder_ = null;
         }
-
-        @java.lang.Override
-        public final Builder mergeUnknownFields(
-            final com.google.protobuf.UnknownFieldSet unknownFields) {
-          return super.mergeUnknownFields(unknownFields);
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * Human Review information of this revision.
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Revision.HumanReview human_review = 6;
+       * 
+       */
+      public com.google.cloud.documentai.v1beta2.Document.Revision.HumanReview.Builder
+          getHumanReviewBuilder() {
+        bitField0_ |= 0x00000040;
+        onChanged();
+        return getHumanReviewFieldBuilder().getBuilder();
+      }
+      /**
+       *
+       *
+       * 
+       * Human Review information of this revision.
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Revision.HumanReview human_review = 6;
+       * 
+       */
+      public com.google.cloud.documentai.v1beta2.Document.Revision.HumanReviewOrBuilder
+          getHumanReviewOrBuilder() {
+        if (humanReviewBuilder_ != null) {
+          return humanReviewBuilder_.getMessageOrBuilder();
+        } else {
+          return humanReview_ == null
+              ? com.google.cloud.documentai.v1beta2.Document.Revision.HumanReview
+                  .getDefaultInstance()
+              : humanReview_;
         }
-
-        // @@protoc_insertion_point(builder_scope:google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef)
+      }
+      /**
+       *
+       *
+       * 
+       * Human Review information of this revision.
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.Revision.HumanReview human_review = 6;
+       * 
+       */
+      private com.google.protobuf.SingleFieldBuilderV3<
+              com.google.cloud.documentai.v1beta2.Document.Revision.HumanReview,
+              com.google.cloud.documentai.v1beta2.Document.Revision.HumanReview.Builder,
+              com.google.cloud.documentai.v1beta2.Document.Revision.HumanReviewOrBuilder>
+          getHumanReviewFieldBuilder() {
+        if (humanReviewBuilder_ == null) {
+          humanReviewBuilder_ =
+              new com.google.protobuf.SingleFieldBuilderV3<
+                  com.google.cloud.documentai.v1beta2.Document.Revision.HumanReview,
+                  com.google.cloud.documentai.v1beta2.Document.Revision.HumanReview.Builder,
+                  com.google.cloud.documentai.v1beta2.Document.Revision.HumanReviewOrBuilder>(
+                  getHumanReview(), getParentForChildren(), isClean());
+          humanReview_ = null;
+        }
+        return humanReviewBuilder_;
       }
 
-      // @@protoc_insertion_point(class_scope:google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef)
-      private static final com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef
-          DEFAULT_INSTANCE;
-
-      static {
-        DEFAULT_INSTANCE = new com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef();
+      @java.lang.Override
+      public final Builder setUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.setUnknownFields(unknownFields);
       }
 
-      public static com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef
-          getDefaultInstance() {
-        return DEFAULT_INSTANCE;
+      @java.lang.Override
+      public final Builder mergeUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.mergeUnknownFields(unknownFields);
       }
 
-      private static final com.google.protobuf.Parser PARSER =
-          new com.google.protobuf.AbstractParser() {
-            @java.lang.Override
-            public PageRef parsePartialFrom(
-                com.google.protobuf.CodedInputStream input,
-                com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-                throws com.google.protobuf.InvalidProtocolBufferException {
-              Builder builder = newBuilder();
-              try {
-                builder.mergeFrom(input, extensionRegistry);
-              } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-                throw e.setUnfinishedMessage(builder.buildPartial());
-              } catch (com.google.protobuf.UninitializedMessageException e) {
-                throw e.asInvalidProtocolBufferException()
-                    .setUnfinishedMessage(builder.buildPartial());
-              } catch (java.io.IOException e) {
-                throw new com.google.protobuf.InvalidProtocolBufferException(e)
-                    .setUnfinishedMessage(builder.buildPartial());
-              }
-              return builder.buildPartial();
+      // @@protoc_insertion_point(builder_scope:google.cloud.documentai.v1beta2.Document.Revision)
+    }
+
+    // @@protoc_insertion_point(class_scope:google.cloud.documentai.v1beta2.Document.Revision)
+    private static final com.google.cloud.documentai.v1beta2.Document.Revision DEFAULT_INSTANCE;
+
+    static {
+      DEFAULT_INSTANCE = new com.google.cloud.documentai.v1beta2.Document.Revision();
+    }
+
+    public static com.google.cloud.documentai.v1beta2.Document.Revision getDefaultInstance() {
+      return DEFAULT_INSTANCE;
+    }
+
+    private static final com.google.protobuf.Parser PARSER =
+        new com.google.protobuf.AbstractParser() {
+          @java.lang.Override
+          public Revision parsePartialFrom(
+              com.google.protobuf.CodedInputStream input,
+              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+              throws com.google.protobuf.InvalidProtocolBufferException {
+            Builder builder = newBuilder();
+            try {
+              builder.mergeFrom(input, extensionRegistry);
+            } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+              throw e.setUnfinishedMessage(builder.buildPartial());
+            } catch (com.google.protobuf.UninitializedMessageException e) {
+              throw e.asInvalidProtocolBufferException()
+                  .setUnfinishedMessage(builder.buildPartial());
+            } catch (java.io.IOException e) {
+              throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                  .setUnfinishedMessage(builder.buildPartial());
             }
-          };
+            return builder.buildPartial();
+          }
+        };
+
+    public static com.google.protobuf.Parser parser() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Parser getParserForType() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta2.Document.Revision getDefaultInstanceForType() {
+      return DEFAULT_INSTANCE;
+    }
+  }
+
+  public interface TextChangeOrBuilder
+      extends
+      // @@protoc_insertion_point(interface_extends:google.cloud.documentai.v1beta2.Document.TextChange)
+      com.google.protobuf.MessageOrBuilder {
+
+    /**
+     *
+     *
+     * 
+     * Provenance of the correction.
+     * Text anchor indexing into the
+     * [Document.text][google.cloud.documentai.v1beta2.Document.text].  There
+     * can only be a single `TextAnchor.text_segments` element.  If the start
+     * and end index of the text segment are the same, the text change is
+     * inserted before that index.
+     * 

+     *
+     * .google.cloud.documentai.v1beta2.Document.TextAnchor text_anchor = 1;
+     *
+     * @return Whether the textAnchor field is set.
+     */
+    boolean hasTextAnchor();
+    /**
+     *
+     *
+     * 
+     * Provenance of the correction.
+     * Text anchor indexing into the
+     * [Document.text][google.cloud.documentai.v1beta2.Document.text].  There
+     * can only be a single `TextAnchor.text_segments` element.  If the start
+     * and end index of the text segment are the same, the text change is
+     * inserted before that index.
+     * 

+     *
+     * .google.cloud.documentai.v1beta2.Document.TextAnchor text_anchor = 1;
+     *
+     * @return The textAnchor.
+     */
+    com.google.cloud.documentai.v1beta2.Document.TextAnchor getTextAnchor();
+    /**
+     *
+     *
+     * 
+     * Provenance of the correction.
+     * Text anchor indexing into the
+     * [Document.text][google.cloud.documentai.v1beta2.Document.text].  There
+     * can only be a single `TextAnchor.text_segments` element.  If the start
+     * and end index of the text segment are the same, the text change is
+     * inserted before that index.
+     * 

+     *
+     * .google.cloud.documentai.v1beta2.Document.TextAnchor text_anchor = 1;
+     */
+    com.google.cloud.documentai.v1beta2.Document.TextAnchorOrBuilder getTextAnchorOrBuilder();
+
+    /**
+     *
+     *
+     * 
+     * The text that replaces the text identified in the `text_anchor`.
+     * 

+     *
+     * string changed_text = 2;
+     *
+     * @return The changedText.
+     */
+    java.lang.String getChangedText();
+    /**
+     *
+     *
+     * 
+     * The text that replaces the text identified in the `text_anchor`.
+     * 

+     *
+     * string changed_text = 2;
+     *
+     * @return The bytes for changedText.
+     */
+    com.google.protobuf.ByteString getChangedTextBytes();
+
+    /**
+     *
+     *
+     * 
+     * The history of this annotation.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta2.Document.Provenance provenance = 3 [deprecated = true];
+     * 
+     */
+    @java.lang.Deprecated
+    java.util.List getProvenanceList();
+    /**
+     *
+     *
+     * 
+     * The history of this annotation.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta2.Document.Provenance provenance = 3 [deprecated = true];
+     * 
+     */
+    @java.lang.Deprecated
+    com.google.cloud.documentai.v1beta2.Document.Provenance getProvenance(int index);
+    /**
+     *
+     *
+     * 
+     * The history of this annotation.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta2.Document.Provenance provenance = 3 [deprecated = true];
+     * 
+     */
+    @java.lang.Deprecated
+    int getProvenanceCount();
+    /**
+     *
+     *
+     * 
+     * The history of this annotation.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta2.Document.Provenance provenance = 3 [deprecated = true];
+     * 
+     */
+    @java.lang.Deprecated
+    java.util.List
+        getProvenanceOrBuilderList();
+    /**
+     *
+     *
+     * 
+     * The history of this annotation.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta2.Document.Provenance provenance = 3 [deprecated = true];
+     * 
+     */
+    @java.lang.Deprecated
+    com.google.cloud.documentai.v1beta2.Document.ProvenanceOrBuilder getProvenanceOrBuilder(
+        int index);
+  }
+  /**
+   *
+   *
+   * 
+   * This message is used for text changes aka. OCR corrections.
+   * 

+   *
+   * Protobuf type {@code google.cloud.documentai.v1beta2.Document.TextChange}
+   */
+  public static final class TextChange extends com.google.protobuf.GeneratedMessageV3
+      implements
+      // @@protoc_insertion_point(message_implements:google.cloud.documentai.v1beta2.Document.TextChange)
+      TextChangeOrBuilder {
+    private static final long serialVersionUID = 0L;
+    // Use TextChange.newBuilder() to construct.
+    private TextChange(com.google.protobuf.GeneratedMessageV3.Builder builder) {
+      super(builder);
+    }
+
+    private TextChange() {
+      changedText_ = "";
+      provenance_ = java.util.Collections.emptyList();
+    }
+
+    @java.lang.Override
+    @SuppressWarnings({"unused"})
+    protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+      return new TextChange();
+    }
+
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.documentai.v1beta2.DocumentProto
+          .internal_static_google_cloud_documentai_v1beta2_Document_TextChange_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.documentai.v1beta2.DocumentProto
+          .internal_static_google_cloud_documentai_v1beta2_Document_TextChange_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.documentai.v1beta2.Document.TextChange.class,
+              com.google.cloud.documentai.v1beta2.Document.TextChange.Builder.class);
+    }
+
+    public static final int TEXT_ANCHOR_FIELD_NUMBER = 1;
+    private com.google.cloud.documentai.v1beta2.Document.TextAnchor textAnchor_;
+    /**
+     *
+     *
+     * 
+     * Provenance of the correction.
+     * Text anchor indexing into the
+     * [Document.text][google.cloud.documentai.v1beta2.Document.text].  There
+     * can only be a single `TextAnchor.text_segments` element.  If the start
+     * and end index of the text segment are the same, the text change is
+     * inserted before that index.
+     * 

+     *
+     * .google.cloud.documentai.v1beta2.Document.TextAnchor text_anchor = 1;
+     *
+     * @return Whether the textAnchor field is set.
+     */
+    @java.lang.Override
+    public boolean hasTextAnchor() {
+      return textAnchor_ != null;
+    }
+    /**
+     *
+     *
+     * 
+     * Provenance of the correction.
+     * Text anchor indexing into the
+     * [Document.text][google.cloud.documentai.v1beta2.Document.text].  There
+     * can only be a single `TextAnchor.text_segments` element.  If the start
+     * and end index of the text segment are the same, the text change is
+     * inserted before that index.
+     * 

+     *
+     * .google.cloud.documentai.v1beta2.Document.TextAnchor text_anchor = 1;
+     *
+     * @return The textAnchor.
+     */
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta2.Document.TextAnchor getTextAnchor() {
+      return textAnchor_ == null
+          ? com.google.cloud.documentai.v1beta2.Document.TextAnchor.getDefaultInstance()
+          : textAnchor_;
+    }
+    /**
+     *
+     *
+     * 
+     * Provenance of the correction.
+     * Text anchor indexing into the
+     * [Document.text][google.cloud.documentai.v1beta2.Document.text].  There
+     * can only be a single `TextAnchor.text_segments` element.  If the start
+     * and end index of the text segment are the same, the text change is
+     * inserted before that index.
+     * 

+     *
+     * .google.cloud.documentai.v1beta2.Document.TextAnchor text_anchor = 1;
+     */
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta2.Document.TextAnchorOrBuilder
+        getTextAnchorOrBuilder() {
+      return textAnchor_ == null
+          ? com.google.cloud.documentai.v1beta2.Document.TextAnchor.getDefaultInstance()
+          : textAnchor_;
+    }
 
-      public static com.google.protobuf.Parser parser() {
-        return PARSER;
-      }
+    public static final int CHANGED_TEXT_FIELD_NUMBER = 2;
 
-      @java.lang.Override
-      public com.google.protobuf.Parser getParserForType() {
-        return PARSER;
+    @SuppressWarnings("serial")
+    private volatile java.lang.Object changedText_ = "";
+    /**
+     *
+     *
+     * 
+     * The text that replaces the text identified in the `text_anchor`.
+     * 

+     *
+     * string changed_text = 2;
+     *
+     * @return The changedText.
+     */
+    @java.lang.Override
+    public java.lang.String getChangedText() {
+      java.lang.Object ref = changedText_;
+      if (ref instanceof java.lang.String) {
+        return (java.lang.String) ref;
+      } else {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        changedText_ = s;
+        return s;
       }
-
-      @java.lang.Override
-      public com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef
-          getDefaultInstanceForType() {
-        return DEFAULT_INSTANCE;
+    }
+    /**
+     *
+     *
+     * 
+     * The text that replaces the text identified in the `text_anchor`.
+     * 

+     *
+     * string changed_text = 2;
+     *
+     * @return The bytes for changedText.
+     */
+    @java.lang.Override
+    public com.google.protobuf.ByteString getChangedTextBytes() {
+      java.lang.Object ref = changedText_;
+      if (ref instanceof java.lang.String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        changedText_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
       }
     }
 
-    public static final int PAGE_REFS_FIELD_NUMBER = 1;
+    public static final int PROVENANCE_FIELD_NUMBER = 3;
 
     @SuppressWarnings("serial")
-    private java.util.List
-        pageRefs_;
+    private java.util.List provenance_;
     /**
      *
      *
      * 
-     * One or more references to visual page elements
+     * The history of this annotation.
      * 

      *
-     * repeated .google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef page_refs = 1;
+     * 
+     * repeated .google.cloud.documentai.v1beta2.Document.Provenance provenance = 3 [deprecated = true];
      * 
      */
     @java.lang.Override
-    public java.util.List
-        getPageRefsList() {
-      return pageRefs_;
+    @java.lang.Deprecated
+    public java.util.List
+        getProvenanceList() {
+      return provenance_;
     }
     /**
      *
      *
      * 
-     * One or more references to visual page elements
+     * The history of this annotation.
      * 

      *
-     * repeated .google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef page_refs = 1;
+     * 
+     * repeated .google.cloud.documentai.v1beta2.Document.Provenance provenance = 3 [deprecated = true];
      * 
      */
     @java.lang.Override
+    @java.lang.Deprecated
     public java.util.List<
-            ? extends com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRefOrBuilder>
-        getPageRefsOrBuilderList() {
-      return pageRefs_;
+            ? extends com.google.cloud.documentai.v1beta2.Document.ProvenanceOrBuilder>
+        getProvenanceOrBuilderList() {
+      return provenance_;
     }
     /**
      *
      *
      * 
-     * One or more references to visual page elements
+     * The history of this annotation.
      * 

      *
-     * repeated .google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef page_refs = 1;
+     * 
+     * repeated .google.cloud.documentai.v1beta2.Document.Provenance provenance = 3 [deprecated = true];
      * 
      */
     @java.lang.Override
-    public int getPageRefsCount() {
-      return pageRefs_.size();
+    @java.lang.Deprecated
+    public int getProvenanceCount() {
+      return provenance_.size();
     }
     /**
      *
      *
      * 
-     * One or more references to visual page elements
+     * The history of this annotation.
      * 

      *
-     * repeated .google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef page_refs = 1;
+     * 
+     * repeated .google.cloud.documentai.v1beta2.Document.Provenance provenance = 3 [deprecated = true];
      * 
      */
     @java.lang.Override
-    public com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef getPageRefs(int index) {
-      return pageRefs_.get(index);
+    @java.lang.Deprecated
+    public com.google.cloud.documentai.v1beta2.Document.Provenance getProvenance(int index) {
+      return provenance_.get(index);
     }
     /**
      *
      *
      * 
-     * One or more references to visual page elements
+     * The history of this annotation.
      * 

      *
-     * repeated .google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef page_refs = 1;
+     * 
+     * repeated .google.cloud.documentai.v1beta2.Document.Provenance provenance = 3 [deprecated = true];
      * 
      */
     @java.lang.Override
-    public com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRefOrBuilder
-        getPageRefsOrBuilder(int index) {
-      return pageRefs_.get(index);
+    @java.lang.Deprecated
+    public com.google.cloud.documentai.v1beta2.Document.ProvenanceOrBuilder getProvenanceOrBuilder(
+        int index) {
+      return provenance_.get(index);
     }
 
     private byte memoizedIsInitialized = -1;
@@ -37723,8 +64565,14 @@ public final boolean isInitialized() {
 
     @java.lang.Override
     public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
-      for (int i = 0; i < pageRefs_.size(); i++) {
-        output.writeMessage(1, pageRefs_.get(i));
+      if (textAnchor_ != null) {
+        output.writeMessage(1, getTextAnchor());
+      }
+      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(changedText_)) {
+        com.google.protobuf.GeneratedMessageV3.writeString(output, 2, changedText_);
+      }
+      for (int i = 0; i < provenance_.size(); i++) {
+        output.writeMessage(3, provenance_.get(i));
       }
       getUnknownFields().writeTo(output);
     }
@@ -37735,8 +64583,14 @@ public int getSerializedSize() {
       if (size != -1) return size;
 
       size = 0;
-      for (int i = 0; i < pageRefs_.size(); i++) {
-        size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, pageRefs_.get(i));
+      if (textAnchor_ != null) {
+        size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, getTextAnchor());
+      }
+      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(changedText_)) {
+        size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, changedText_);
+      }
+      for (int i = 0; i < provenance_.size(); i++) {
+        size += com.google.protobuf.CodedOutputStream.computeMessageSize(3, provenance_.get(i));
       }
       size += getUnknownFields().getSerializedSize();
       memoizedSize = size;
@@ -37748,13 +64602,18 @@ public boolean equals(final java.lang.Object obj) {
       if (obj == this) {
         return true;
       }
-      if (!(obj instanceof com.google.cloud.documentai.v1beta2.Document.PageAnchor)) {
+      if (!(obj instanceof com.google.cloud.documentai.v1beta2.Document.TextChange)) {
         return super.equals(obj);
       }
-      com.google.cloud.documentai.v1beta2.Document.PageAnchor other =
-          (com.google.cloud.documentai.v1beta2.Document.PageAnchor) obj;
+      com.google.cloud.documentai.v1beta2.Document.TextChange other =
+          (com.google.cloud.documentai.v1beta2.Document.TextChange) obj;
 
-      if (!getPageRefsList().equals(other.getPageRefsList())) return false;
+      if (hasTextAnchor() != other.hasTextAnchor()) return false;
+      if (hasTextAnchor()) {
+        if (!getTextAnchor().equals(other.getTextAnchor())) return false;
+      }
+      if (!getChangedText().equals(other.getChangedText())) return false;
+      if (!getProvenanceList().equals(other.getProvenanceList())) return false;
       if (!getUnknownFields().equals(other.getUnknownFields())) return false;
       return true;
     }
@@ -37766,80 +64625,86 @@ public int hashCode() {
       }
       int hash = 41;
       hash = (19 * hash) + getDescriptor().hashCode();
-      if (getPageRefsCount() > 0) {
-        hash = (37 * hash) + PAGE_REFS_FIELD_NUMBER;
-        hash = (53 * hash) + getPageRefsList().hashCode();
+      if (hasTextAnchor()) {
+        hash = (37 * hash) + TEXT_ANCHOR_FIELD_NUMBER;
+        hash = (53 * hash) + getTextAnchor().hashCode();
+      }
+      hash = (37 * hash) + CHANGED_TEXT_FIELD_NUMBER;
+      hash = (53 * hash) + getChangedText().hashCode();
+      if (getProvenanceCount() > 0) {
+        hash = (37 * hash) + PROVENANCE_FIELD_NUMBER;
+        hash = (53 * hash) + getProvenanceList().hashCode();
       }
       hash = (29 * hash) + getUnknownFields().hashCode();
       memoizedHashCode = hash;
       return hash;
     }
 
-    public static com.google.cloud.documentai.v1beta2.Document.PageAnchor parseFrom(
+    public static com.google.cloud.documentai.v1beta2.Document.TextChange parseFrom(
         java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
       return PARSER.parseFrom(data);
     }
 
-    public static com.google.cloud.documentai.v1beta2.Document.PageAnchor parseFrom(
+    public static com.google.cloud.documentai.v1beta2.Document.TextChange parseFrom(
         java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws com.google.protobuf.InvalidProtocolBufferException {
       return PARSER.parseFrom(data, extensionRegistry);
     }
 
-    public static com.google.cloud.documentai.v1beta2.Document.PageAnchor parseFrom(
+    public static com.google.cloud.documentai.v1beta2.Document.TextChange parseFrom(
         com.google.protobuf.ByteString data)
         throws com.google.protobuf.InvalidProtocolBufferException {
       return PARSER.parseFrom(data);
     }
 
-    public static com.google.cloud.documentai.v1beta2.Document.PageAnchor parseFrom(
+    public static com.google.cloud.documentai.v1beta2.Document.TextChange parseFrom(
         com.google.protobuf.ByteString data,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws com.google.protobuf.InvalidProtocolBufferException {
       return PARSER.parseFrom(data, extensionRegistry);
     }
 
-    public static com.google.cloud.documentai.v1beta2.Document.PageAnchor parseFrom(byte[] data)
+    public static com.google.cloud.documentai.v1beta2.Document.TextChange parseFrom(byte[] data)
         throws com.google.protobuf.InvalidProtocolBufferException {
       return PARSER.parseFrom(data);
     }
 
-    public static com.google.cloud.documentai.v1beta2.Document.PageAnchor parseFrom(
+    public static com.google.cloud.documentai.v1beta2.Document.TextChange parseFrom(
         byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws com.google.protobuf.InvalidProtocolBufferException {
       return PARSER.parseFrom(data, extensionRegistry);
     }
 
-    public static com.google.cloud.documentai.v1beta2.Document.PageAnchor parseFrom(
+    public static com.google.cloud.documentai.v1beta2.Document.TextChange parseFrom(
         java.io.InputStream input) throws java.io.IOException {
       return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
     }
 
-    public static com.google.cloud.documentai.v1beta2.Document.PageAnchor parseFrom(
+    public static com.google.cloud.documentai.v1beta2.Document.TextChange parseFrom(
         java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
       return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
           PARSER, input, extensionRegistry);
     }
 
-    public static com.google.cloud.documentai.v1beta2.Document.PageAnchor parseDelimitedFrom(
+    public static com.google.cloud.documentai.v1beta2.Document.TextChange parseDelimitedFrom(
         java.io.InputStream input) throws java.io.IOException {
       return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
     }
 
-    public static com.google.cloud.documentai.v1beta2.Document.PageAnchor parseDelimitedFrom(
+    public static com.google.cloud.documentai.v1beta2.Document.TextChange parseDelimitedFrom(
         java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
       return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
           PARSER, input, extensionRegistry);
     }
 
-    public static com.google.cloud.documentai.v1beta2.Document.PageAnchor parseFrom(
+    public static com.google.cloud.documentai.v1beta2.Document.TextChange parseFrom(
         com.google.protobuf.CodedInputStream input) throws java.io.IOException {
       return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
     }
 
-    public static com.google.cloud.documentai.v1beta2.Document.PageAnchor parseFrom(
+    public static com.google.cloud.documentai.v1beta2.Document.TextChange parseFrom(
         com.google.protobuf.CodedInputStream input,
         com.google.protobuf.ExtensionRegistryLite extensionRegistry)
         throws java.io.IOException {
@@ -37857,7 +64722,7 @@ public static Builder newBuilder() {
     }
 
     public static Builder newBuilder(
-        com.google.cloud.documentai.v1beta2.Document.PageAnchor prototype) {
+        com.google.cloud.documentai.v1beta2.Document.TextChange prototype) {
       return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
     }
 
@@ -37876,32 +64741,32 @@ protected Builder newBuilderForType(
      *
      *
      * 
-     * Referencing elements in [Document.pages][google.cloud.documentai.v1beta2.Document.pages].
+     * This message is used for text changes aka. OCR corrections.
      * 

      *
-     * Protobuf type {@code google.cloud.documentai.v1beta2.Document.PageAnchor}
+     * Protobuf type {@code google.cloud.documentai.v1beta2.Document.TextChange}
      */
     public static final class Builder
         extends com.google.protobuf.GeneratedMessageV3.Builder
         implements
-        // @@protoc_insertion_point(builder_implements:google.cloud.documentai.v1beta2.Document.PageAnchor)
-        com.google.cloud.documentai.v1beta2.Document.PageAnchorOrBuilder {
+        // @@protoc_insertion_point(builder_implements:google.cloud.documentai.v1beta2.Document.TextChange)
+        com.google.cloud.documentai.v1beta2.Document.TextChangeOrBuilder {
       public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
         return com.google.cloud.documentai.v1beta2.DocumentProto
-            .internal_static_google_cloud_documentai_v1beta2_Document_PageAnchor_descriptor;
+            .internal_static_google_cloud_documentai_v1beta2_Document_TextChange_descriptor;
       }
 
       @java.lang.Override
       protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
           internalGetFieldAccessorTable() {
         return com.google.cloud.documentai.v1beta2.DocumentProto
-            .internal_static_google_cloud_documentai_v1beta2_Document_PageAnchor_fieldAccessorTable
+            .internal_static_google_cloud_documentai_v1beta2_Document_TextChange_fieldAccessorTable
             .ensureFieldAccessorsInitialized(
-                com.google.cloud.documentai.v1beta2.Document.PageAnchor.class,
-                com.google.cloud.documentai.v1beta2.Document.PageAnchor.Builder.class);
+                com.google.cloud.documentai.v1beta2.Document.TextChange.class,
+                com.google.cloud.documentai.v1beta2.Document.TextChange.Builder.class);
       }
 
-      // Construct using com.google.cloud.documentai.v1beta2.Document.PageAnchor.newBuilder()
+      // Construct using com.google.cloud.documentai.v1beta2.Document.TextChange.newBuilder()
       private Builder() {}
 
       private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
@@ -37912,30 +64777,36 @@ private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
       public Builder clear() {
         super.clear();
         bitField0_ = 0;
-        if (pageRefsBuilder_ == null) {
-          pageRefs_ = java.util.Collections.emptyList();
+        textAnchor_ = null;
+        if (textAnchorBuilder_ != null) {
+          textAnchorBuilder_.dispose();
+          textAnchorBuilder_ = null;
+        }
+        changedText_ = "";
+        if (provenanceBuilder_ == null) {
+          provenance_ = java.util.Collections.emptyList();
         } else {
-          pageRefs_ = null;
-          pageRefsBuilder_.clear();
+          provenance_ = null;
+          provenanceBuilder_.clear();
         }
-        bitField0_ = (bitField0_ & ~0x00000001);
+        bitField0_ = (bitField0_ & ~0x00000004);
         return this;
       }
 
       @java.lang.Override
       public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
         return com.google.cloud.documentai.v1beta2.DocumentProto
-            .internal_static_google_cloud_documentai_v1beta2_Document_PageAnchor_descriptor;
+            .internal_static_google_cloud_documentai_v1beta2_Document_TextChange_descriptor;
       }
 
       @java.lang.Override
-      public com.google.cloud.documentai.v1beta2.Document.PageAnchor getDefaultInstanceForType() {
-        return com.google.cloud.documentai.v1beta2.Document.PageAnchor.getDefaultInstance();
+      public com.google.cloud.documentai.v1beta2.Document.TextChange getDefaultInstanceForType() {
+        return com.google.cloud.documentai.v1beta2.Document.TextChange.getDefaultInstance();
       }
 
       @java.lang.Override
-      public com.google.cloud.documentai.v1beta2.Document.PageAnchor build() {
-        com.google.cloud.documentai.v1beta2.Document.PageAnchor result = buildPartial();
+      public com.google.cloud.documentai.v1beta2.Document.TextChange build() {
+        com.google.cloud.documentai.v1beta2.Document.TextChange result = buildPartial();
         if (!result.isInitialized()) {
           throw newUninitializedMessageException(result);
         }
@@ -37943,9 +64814,9 @@ public com.google.cloud.documentai.v1beta2.Document.PageAnchor build() {
       }
 
       @java.lang.Override
-      public com.google.cloud.documentai.v1beta2.Document.PageAnchor buildPartial() {
-        com.google.cloud.documentai.v1beta2.Document.PageAnchor result =
-            new com.google.cloud.documentai.v1beta2.Document.PageAnchor(this);
+      public com.google.cloud.documentai.v1beta2.Document.TextChange buildPartial() {
+        com.google.cloud.documentai.v1beta2.Document.TextChange result =
+            new com.google.cloud.documentai.v1beta2.Document.TextChange(this);
         buildPartialRepeatedFields(result);
         if (bitField0_ != 0) {
           buildPartial0(result);
@@ -37955,20 +64826,27 @@ public com.google.cloud.documentai.v1beta2.Document.PageAnchor buildPartial() {
       }
 
       private void buildPartialRepeatedFields(
-          com.google.cloud.documentai.v1beta2.Document.PageAnchor result) {
-        if (pageRefsBuilder_ == null) {
-          if (((bitField0_ & 0x00000001) != 0)) {
-            pageRefs_ = java.util.Collections.unmodifiableList(pageRefs_);
-            bitField0_ = (bitField0_ & ~0x00000001);
+          com.google.cloud.documentai.v1beta2.Document.TextChange result) {
+        if (provenanceBuilder_ == null) {
+          if (((bitField0_ & 0x00000004) != 0)) {
+            provenance_ = java.util.Collections.unmodifiableList(provenance_);
+            bitField0_ = (bitField0_ & ~0x00000004);
           }
-          result.pageRefs_ = pageRefs_;
+          result.provenance_ = provenance_;
         } else {
-          result.pageRefs_ = pageRefsBuilder_.build();
+          result.provenance_ = provenanceBuilder_.build();
         }
       }
 
-      private void buildPartial0(com.google.cloud.documentai.v1beta2.Document.PageAnchor result) {
+      private void buildPartial0(com.google.cloud.documentai.v1beta2.Document.TextChange result) {
         int from_bitField0_ = bitField0_;
+        if (((from_bitField0_ & 0x00000001) != 0)) {
+          result.textAnchor_ =
+              textAnchorBuilder_ == null ? textAnchor_ : textAnchorBuilder_.build();
+        }
+        if (((from_bitField0_ & 0x00000002) != 0)) {
+          result.changedText_ = changedText_;
+        }
       }
 
       @java.lang.Override
@@ -38008,195 +64886,561 @@ public Builder addRepeatedField(
 
       @java.lang.Override
       public Builder mergeFrom(com.google.protobuf.Message other) {
-        if (other instanceof com.google.cloud.documentai.v1beta2.Document.PageAnchor) {
-          return mergeFrom((com.google.cloud.documentai.v1beta2.Document.PageAnchor) other);
+        if (other instanceof com.google.cloud.documentai.v1beta2.Document.TextChange) {
+          return mergeFrom((com.google.cloud.documentai.v1beta2.Document.TextChange) other);
         } else {
           super.mergeFrom(other);
           return this;
         }
       }
 
-      public Builder mergeFrom(com.google.cloud.documentai.v1beta2.Document.PageAnchor other) {
-        if (other == com.google.cloud.documentai.v1beta2.Document.PageAnchor.getDefaultInstance())
+      public Builder mergeFrom(com.google.cloud.documentai.v1beta2.Document.TextChange other) {
+        if (other == com.google.cloud.documentai.v1beta2.Document.TextChange.getDefaultInstance())
           return this;
-        if (pageRefsBuilder_ == null) {
-          if (!other.pageRefs_.isEmpty()) {
-            if (pageRefs_.isEmpty()) {
-              pageRefs_ = other.pageRefs_;
-              bitField0_ = (bitField0_ & ~0x00000001);
+        if (other.hasTextAnchor()) {
+          mergeTextAnchor(other.getTextAnchor());
+        }
+        if (!other.getChangedText().isEmpty()) {
+          changedText_ = other.changedText_;
+          bitField0_ |= 0x00000002;
+          onChanged();
+        }
+        if (provenanceBuilder_ == null) {
+          if (!other.provenance_.isEmpty()) {
+            if (provenance_.isEmpty()) {
+              provenance_ = other.provenance_;
+              bitField0_ = (bitField0_ & ~0x00000004);
             } else {
-              ensurePageRefsIsMutable();
-              pageRefs_.addAll(other.pageRefs_);
+              ensureProvenanceIsMutable();
+              provenance_.addAll(other.provenance_);
             }
             onChanged();
           }
         } else {
-          if (!other.pageRefs_.isEmpty()) {
-            if (pageRefsBuilder_.isEmpty()) {
-              pageRefsBuilder_.dispose();
-              pageRefsBuilder_ = null;
-              pageRefs_ = other.pageRefs_;
-              bitField0_ = (bitField0_ & ~0x00000001);
-              pageRefsBuilder_ =
+          if (!other.provenance_.isEmpty()) {
+            if (provenanceBuilder_.isEmpty()) {
+              provenanceBuilder_.dispose();
+              provenanceBuilder_ = null;
+              provenance_ = other.provenance_;
+              bitField0_ = (bitField0_ & ~0x00000004);
+              provenanceBuilder_ =
                   com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders
-                      ? getPageRefsFieldBuilder()
+                      ? getProvenanceFieldBuilder()
                       : null;
             } else {
-              pageRefsBuilder_.addAllMessages(other.pageRefs_);
+              provenanceBuilder_.addAllMessages(other.provenance_);
             }
           }
         }
-        this.mergeUnknownFields(other.getUnknownFields());
+        this.mergeUnknownFields(other.getUnknownFields());
+        onChanged();
+        return this;
+      }
+
+      @java.lang.Override
+      public final boolean isInitialized() {
+        return true;
+      }
+
+      @java.lang.Override
+      public Builder mergeFrom(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+        if (extensionRegistry == null) {
+          throw new java.lang.NullPointerException();
+        }
+        try {
+          boolean done = false;
+          while (!done) {
+            int tag = input.readTag();
+            switch (tag) {
+              case 0:
+                done = true;
+                break;
+              case 10:
+                {
+                  input.readMessage(getTextAnchorFieldBuilder().getBuilder(), extensionRegistry);
+                  bitField0_ |= 0x00000001;
+                  break;
+                } // case 10
+              case 18:
+                {
+                  changedText_ = input.readStringRequireUtf8();
+                  bitField0_ |= 0x00000002;
+                  break;
+                } // case 18
+              case 26:
+                {
+                  com.google.cloud.documentai.v1beta2.Document.Provenance m =
+                      input.readMessage(
+                          com.google.cloud.documentai.v1beta2.Document.Provenance.parser(),
+                          extensionRegistry);
+                  if (provenanceBuilder_ == null) {
+                    ensureProvenanceIsMutable();
+                    provenance_.add(m);
+                  } else {
+                    provenanceBuilder_.addMessage(m);
+                  }
+                  break;
+                } // case 26
+              default:
+                {
+                  if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                    done = true; // was an endgroup tag
+                  }
+                  break;
+                } // default:
+            } // switch (tag)
+          } // while (!done)
+        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          throw e.unwrapIOException();
+        } finally {
+          onChanged();
+        } // finally
+        return this;
+      }
+
+      private int bitField0_;
+
+      private com.google.cloud.documentai.v1beta2.Document.TextAnchor textAnchor_;
+      private com.google.protobuf.SingleFieldBuilderV3<
+              com.google.cloud.documentai.v1beta2.Document.TextAnchor,
+              com.google.cloud.documentai.v1beta2.Document.TextAnchor.Builder,
+              com.google.cloud.documentai.v1beta2.Document.TextAnchorOrBuilder>
+          textAnchorBuilder_;
+      /**
+       *
+       *
+       * 
+       * Provenance of the correction.
+       * Text anchor indexing into the
+       * [Document.text][google.cloud.documentai.v1beta2.Document.text].  There
+       * can only be a single `TextAnchor.text_segments` element.  If the start
+       * and end index of the text segment are the same, the text change is
+       * inserted before that index.
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.TextAnchor text_anchor = 1;
+       *
+       * @return Whether the textAnchor field is set.
+       */
+      public boolean hasTextAnchor() {
+        return ((bitField0_ & 0x00000001) != 0);
+      }
+      /**
+       *
+       *
+       * 
+       * Provenance of the correction.
+       * Text anchor indexing into the
+       * [Document.text][google.cloud.documentai.v1beta2.Document.text].  There
+       * can only be a single `TextAnchor.text_segments` element.  If the start
+       * and end index of the text segment are the same, the text change is
+       * inserted before that index.
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.TextAnchor text_anchor = 1;
+       *
+       * @return The textAnchor.
+       */
+      public com.google.cloud.documentai.v1beta2.Document.TextAnchor getTextAnchor() {
+        if (textAnchorBuilder_ == null) {
+          return textAnchor_ == null
+              ? com.google.cloud.documentai.v1beta2.Document.TextAnchor.getDefaultInstance()
+              : textAnchor_;
+        } else {
+          return textAnchorBuilder_.getMessage();
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * Provenance of the correction.
+       * Text anchor indexing into the
+       * [Document.text][google.cloud.documentai.v1beta2.Document.text].  There
+       * can only be a single `TextAnchor.text_segments` element.  If the start
+       * and end index of the text segment are the same, the text change is
+       * inserted before that index.
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.TextAnchor text_anchor = 1;
+       */
+      public Builder setTextAnchor(com.google.cloud.documentai.v1beta2.Document.TextAnchor value) {
+        if (textAnchorBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          textAnchor_ = value;
+        } else {
+          textAnchorBuilder_.setMessage(value);
+        }
+        bitField0_ |= 0x00000001;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * Provenance of the correction.
+       * Text anchor indexing into the
+       * [Document.text][google.cloud.documentai.v1beta2.Document.text].  There
+       * can only be a single `TextAnchor.text_segments` element.  If the start
+       * and end index of the text segment are the same, the text change is
+       * inserted before that index.
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.TextAnchor text_anchor = 1;
+       */
+      public Builder setTextAnchor(
+          com.google.cloud.documentai.v1beta2.Document.TextAnchor.Builder builderForValue) {
+        if (textAnchorBuilder_ == null) {
+          textAnchor_ = builderForValue.build();
+        } else {
+          textAnchorBuilder_.setMessage(builderForValue.build());
+        }
+        bitField0_ |= 0x00000001;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * Provenance of the correction.
+       * Text anchor indexing into the
+       * [Document.text][google.cloud.documentai.v1beta2.Document.text].  There
+       * can only be a single `TextAnchor.text_segments` element.  If the start
+       * and end index of the text segment are the same, the text change is
+       * inserted before that index.
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.TextAnchor text_anchor = 1;
+       */
+      public Builder mergeTextAnchor(
+          com.google.cloud.documentai.v1beta2.Document.TextAnchor value) {
+        if (textAnchorBuilder_ == null) {
+          if (((bitField0_ & 0x00000001) != 0)
+              && textAnchor_ != null
+              && textAnchor_
+                  != com.google.cloud.documentai.v1beta2.Document.TextAnchor.getDefaultInstance()) {
+            getTextAnchorBuilder().mergeFrom(value);
+          } else {
+            textAnchor_ = value;
+          }
+        } else {
+          textAnchorBuilder_.mergeFrom(value);
+        }
+        bitField0_ |= 0x00000001;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * Provenance of the correction.
+       * Text anchor indexing into the
+       * [Document.text][google.cloud.documentai.v1beta2.Document.text].  There
+       * can only be a single `TextAnchor.text_segments` element.  If the start
+       * and end index of the text segment are the same, the text change is
+       * inserted before that index.
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.TextAnchor text_anchor = 1;
+       */
+      public Builder clearTextAnchor() {
+        bitField0_ = (bitField0_ & ~0x00000001);
+        textAnchor_ = null;
+        if (textAnchorBuilder_ != null) {
+          textAnchorBuilder_.dispose();
+          textAnchorBuilder_ = null;
+        }
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * Provenance of the correction.
+       * Text anchor indexing into the
+       * [Document.text][google.cloud.documentai.v1beta2.Document.text].  There
+       * can only be a single `TextAnchor.text_segments` element.  If the start
+       * and end index of the text segment are the same, the text change is
+       * inserted before that index.
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.TextAnchor text_anchor = 1;
+       */
+      public com.google.cloud.documentai.v1beta2.Document.TextAnchor.Builder
+          getTextAnchorBuilder() {
+        bitField0_ |= 0x00000001;
+        onChanged();
+        return getTextAnchorFieldBuilder().getBuilder();
+      }
+      /**
+       *
+       *
+       * 
+       * Provenance of the correction.
+       * Text anchor indexing into the
+       * [Document.text][google.cloud.documentai.v1beta2.Document.text].  There
+       * can only be a single `TextAnchor.text_segments` element.  If the start
+       * and end index of the text segment are the same, the text change is
+       * inserted before that index.
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.TextAnchor text_anchor = 1;
+       */
+      public com.google.cloud.documentai.v1beta2.Document.TextAnchorOrBuilder
+          getTextAnchorOrBuilder() {
+        if (textAnchorBuilder_ != null) {
+          return textAnchorBuilder_.getMessageOrBuilder();
+        } else {
+          return textAnchor_ == null
+              ? com.google.cloud.documentai.v1beta2.Document.TextAnchor.getDefaultInstance()
+              : textAnchor_;
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * Provenance of the correction.
+       * Text anchor indexing into the
+       * [Document.text][google.cloud.documentai.v1beta2.Document.text].  There
+       * can only be a single `TextAnchor.text_segments` element.  If the start
+       * and end index of the text segment are the same, the text change is
+       * inserted before that index.
+       * 

+       *
+       * .google.cloud.documentai.v1beta2.Document.TextAnchor text_anchor = 1;
+       */
+      private com.google.protobuf.SingleFieldBuilderV3<
+              com.google.cloud.documentai.v1beta2.Document.TextAnchor,
+              com.google.cloud.documentai.v1beta2.Document.TextAnchor.Builder,
+              com.google.cloud.documentai.v1beta2.Document.TextAnchorOrBuilder>
+          getTextAnchorFieldBuilder() {
+        if (textAnchorBuilder_ == null) {
+          textAnchorBuilder_ =
+              new com.google.protobuf.SingleFieldBuilderV3<
+                  com.google.cloud.documentai.v1beta2.Document.TextAnchor,
+                  com.google.cloud.documentai.v1beta2.Document.TextAnchor.Builder,
+                  com.google.cloud.documentai.v1beta2.Document.TextAnchorOrBuilder>(
+                  getTextAnchor(), getParentForChildren(), isClean());
+          textAnchor_ = null;
+        }
+        return textAnchorBuilder_;
+      }
+
+      private java.lang.Object changedText_ = "";
+      /**
+       *
+       *
+       * 
+       * The text that replaces the text identified in the `text_anchor`.
+       * 

+       *
+       * string changed_text = 2;
+       *
+       * @return The changedText.
+       */
+      public java.lang.String getChangedText() {
+        java.lang.Object ref = changedText_;
+        if (!(ref instanceof java.lang.String)) {
+          com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+          java.lang.String s = bs.toStringUtf8();
+          changedText_ = s;
+          return s;
+        } else {
+          return (java.lang.String) ref;
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * The text that replaces the text identified in the `text_anchor`.
+       * 

+       *
+       * string changed_text = 2;
+       *
+       * @return The bytes for changedText.
+       */
+      public com.google.protobuf.ByteString getChangedTextBytes() {
+        java.lang.Object ref = changedText_;
+        if (ref instanceof String) {
+          com.google.protobuf.ByteString b =
+              com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+          changedText_ = b;
+          return b;
+        } else {
+          return (com.google.protobuf.ByteString) ref;
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * The text that replaces the text identified in the `text_anchor`.
+       * 

+       *
+       * string changed_text = 2;
+       *
+       * @param value The changedText to set.
+       * @return This builder for chaining.
+       */
+      public Builder setChangedText(java.lang.String value) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        changedText_ = value;
+        bitField0_ |= 0x00000002;
         onChanged();
         return this;
       }
-
-      @java.lang.Override
-      public final boolean isInitialized() {
-        return true;
+      /**
+       *
+       *
+       * 
+       * The text that replaces the text identified in the `text_anchor`.
+       * 

+       *
+       * string changed_text = 2;
+       *
+       * @return This builder for chaining.
+       */
+      public Builder clearChangedText() {
+        changedText_ = getDefaultInstance().getChangedText();
+        bitField0_ = (bitField0_ & ~0x00000002);
+        onChanged();
+        return this;
       }
-
-      @java.lang.Override
-      public Builder mergeFrom(
-          com.google.protobuf.CodedInputStream input,
-          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
-          throws java.io.IOException {
-        if (extensionRegistry == null) {
-          throw new java.lang.NullPointerException();
+      /**
+       *
+       *
+       * 
+       * The text that replaces the text identified in the `text_anchor`.
+       * 

+       *
+       * string changed_text = 2;
+       *
+       * @param value The bytes for changedText to set.
+       * @return This builder for chaining.
+       */
+      public Builder setChangedTextBytes(com.google.protobuf.ByteString value) {
+        if (value == null) {
+          throw new NullPointerException();
         }
-        try {
-          boolean done = false;
-          while (!done) {
-            int tag = input.readTag();
-            switch (tag) {
-              case 0:
-                done = true;
-                break;
-              case 10:
-                {
-                  com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef m =
-                      input.readMessage(
-                          com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef.parser(),
-                          extensionRegistry);
-                  if (pageRefsBuilder_ == null) {
-                    ensurePageRefsIsMutable();
-                    pageRefs_.add(m);
-                  } else {
-                    pageRefsBuilder_.addMessage(m);
-                  }
-                  break;
-                } // case 10
-              default:
-                {
-                  if (!super.parseUnknownField(input, extensionRegistry, tag)) {
-                    done = true; // was an endgroup tag
-                  }
-                  break;
-                } // default:
-            } // switch (tag)
-          } // while (!done)
-        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
-          throw e.unwrapIOException();
-        } finally {
-          onChanged();
-        } // finally
+        checkByteStringIsUtf8(value);
+        changedText_ = value;
+        bitField0_ |= 0x00000002;
+        onChanged();
         return this;
       }
 
-      private int bitField0_;
-
-      private java.util.List
-          pageRefs_ = java.util.Collections.emptyList();
+      private java.util.List provenance_ =
+          java.util.Collections.emptyList();
 
-      private void ensurePageRefsIsMutable() {
-        if (!((bitField0_ & 0x00000001) != 0)) {
-          pageRefs_ =
-              new java.util.ArrayList<
-                  com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef>(pageRefs_);
-          bitField0_ |= 0x00000001;
+      private void ensureProvenanceIsMutable() {
+        if (!((bitField0_ & 0x00000004) != 0)) {
+          provenance_ =
+              new java.util.ArrayList(
+                  provenance_);
+          bitField0_ |= 0x00000004;
         }
       }
 
       private com.google.protobuf.RepeatedFieldBuilderV3<
-              com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef,
-              com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef.Builder,
-              com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRefOrBuilder>
-          pageRefsBuilder_;
+              com.google.cloud.documentai.v1beta2.Document.Provenance,
+              com.google.cloud.documentai.v1beta2.Document.Provenance.Builder,
+              com.google.cloud.documentai.v1beta2.Document.ProvenanceOrBuilder>
+          provenanceBuilder_;
 
       /**
        *
        *
        * 
-       * One or more references to visual page elements
+       * The history of this annotation.
        * 

        *
-       * repeated .google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef page_refs = 1;
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Provenance provenance = 3 [deprecated = true];
        * 
        */
-      public java.util.List
-          getPageRefsList() {
-        if (pageRefsBuilder_ == null) {
-          return java.util.Collections.unmodifiableList(pageRefs_);
+      @java.lang.Deprecated
+      public java.util.List
+          getProvenanceList() {
+        if (provenanceBuilder_ == null) {
+          return java.util.Collections.unmodifiableList(provenance_);
         } else {
-          return pageRefsBuilder_.getMessageList();
+          return provenanceBuilder_.getMessageList();
         }
       }
       /**
        *
        *
        * 
-       * One or more references to visual page elements
+       * The history of this annotation.
        * 

        *
-       * repeated .google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef page_refs = 1;
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Provenance provenance = 3 [deprecated = true];
        * 
        */
-      public int getPageRefsCount() {
-        if (pageRefsBuilder_ == null) {
-          return pageRefs_.size();
+      @java.lang.Deprecated
+      public int getProvenanceCount() {
+        if (provenanceBuilder_ == null) {
+          return provenance_.size();
         } else {
-          return pageRefsBuilder_.getCount();
+          return provenanceBuilder_.getCount();
         }
       }
       /**
        *
        *
        * 
-       * One or more references to visual page elements
+       * The history of this annotation.
        * 

        *
-       * repeated .google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef page_refs = 1;
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Provenance provenance = 3 [deprecated = true];
        * 
        */
-      public com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef getPageRefs(
-          int index) {
-        if (pageRefsBuilder_ == null) {
-          return pageRefs_.get(index);
+      @java.lang.Deprecated
+      public com.google.cloud.documentai.v1beta2.Document.Provenance getProvenance(int index) {
+        if (provenanceBuilder_ == null) {
+          return provenance_.get(index);
         } else {
-          return pageRefsBuilder_.getMessage(index);
+          return provenanceBuilder_.getMessage(index);
         }
       }
       /**
        *
        *
        * 
-       * One or more references to visual page elements
+       * The history of this annotation.
        * 

        *
-       * repeated .google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef page_refs = 1;
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Provenance provenance = 3 [deprecated = true];
        * 
        */
-      public Builder setPageRefs(
-          int index, com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef value) {
-        if (pageRefsBuilder_ == null) {
+      @java.lang.Deprecated
+      public Builder setProvenance(
+          int index, com.google.cloud.documentai.v1beta2.Document.Provenance value) {
+        if (provenanceBuilder_ == null) {
           if (value == null) {
             throw new NullPointerException();
           }
-          ensurePageRefsIsMutable();
-          pageRefs_.set(index, value);
+          ensureProvenanceIsMutable();
+          provenance_.set(index, value);
           onChanged();
         } else {
-          pageRefsBuilder_.setMessage(index, value);
+          provenanceBuilder_.setMessage(index, value);
         }
         return this;
       }
@@ -38204,21 +65448,23 @@ public Builder setPageRefs(
        *
        *
        * 
-       * One or more references to visual page elements
+       * The history of this annotation.
        * 

        *
-       * repeated .google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef page_refs = 1;
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Provenance provenance = 3 [deprecated = true];
        * 
        */
-      public Builder setPageRefs(
+      @java.lang.Deprecated
+      public Builder setProvenance(
           int index,
-          com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef.Builder builderForValue) {
-        if (pageRefsBuilder_ == null) {
-          ensurePageRefsIsMutable();
-          pageRefs_.set(index, builderForValue.build());
+          com.google.cloud.documentai.v1beta2.Document.Provenance.Builder builderForValue) {
+        if (provenanceBuilder_ == null) {
+          ensureProvenanceIsMutable();
+          provenance_.set(index, builderForValue.build());
           onChanged();
         } else {
-          pageRefsBuilder_.setMessage(index, builderForValue.build());
+          provenanceBuilder_.setMessage(index, builderForValue.build());
         }
         return this;
       }
@@ -38226,23 +65472,24 @@ public Builder setPageRefs(
        *
        *
        * 
-       * One or more references to visual page elements
+       * The history of this annotation.
        * 

        *
-       * repeated .google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef page_refs = 1;
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Provenance provenance = 3 [deprecated = true];
        * 
        */
-      public Builder addPageRefs(
-          com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef value) {
-        if (pageRefsBuilder_ == null) {
+      @java.lang.Deprecated
+      public Builder addProvenance(com.google.cloud.documentai.v1beta2.Document.Provenance value) {
+        if (provenanceBuilder_ == null) {
           if (value == null) {
             throw new NullPointerException();
           }
-          ensurePageRefsIsMutable();
-          pageRefs_.add(value);
+          ensureProvenanceIsMutable();
+          provenance_.add(value);
           onChanged();
         } else {
-          pageRefsBuilder_.addMessage(value);
+          provenanceBuilder_.addMessage(value);
         }
         return this;
       }
@@ -38250,23 +65497,25 @@ public Builder addPageRefs(
        *
        *
        * 
-       * One or more references to visual page elements
+       * The history of this annotation.
        * 

        *
-       * repeated .google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef page_refs = 1;
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Provenance provenance = 3 [deprecated = true];
        * 
        */
-      public Builder addPageRefs(
-          int index, com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef value) {
-        if (pageRefsBuilder_ == null) {
+      @java.lang.Deprecated
+      public Builder addProvenance(
+          int index, com.google.cloud.documentai.v1beta2.Document.Provenance value) {
+        if (provenanceBuilder_ == null) {
           if (value == null) {
             throw new NullPointerException();
           }
-          ensurePageRefsIsMutable();
-          pageRefs_.add(index, value);
+          ensureProvenanceIsMutable();
+          provenance_.add(index, value);
           onChanged();
         } else {
-          pageRefsBuilder_.addMessage(index, value);
+          provenanceBuilder_.addMessage(index, value);
         }
         return this;
       }
@@ -38274,20 +65523,22 @@ public Builder addPageRefs(
        *
        *
        * 
-       * One or more references to visual page elements
+       * The history of this annotation.
        * 

        *
-       * repeated .google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef page_refs = 1;
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Provenance provenance = 3 [deprecated = true];
        * 
        */
-      public Builder addPageRefs(
-          com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef.Builder builderForValue) {
-        if (pageRefsBuilder_ == null) {
-          ensurePageRefsIsMutable();
-          pageRefs_.add(builderForValue.build());
+      @java.lang.Deprecated
+      public Builder addProvenance(
+          com.google.cloud.documentai.v1beta2.Document.Provenance.Builder builderForValue) {
+        if (provenanceBuilder_ == null) {
+          ensureProvenanceIsMutable();
+          provenance_.add(builderForValue.build());
           onChanged();
         } else {
-          pageRefsBuilder_.addMessage(builderForValue.build());
+          provenanceBuilder_.addMessage(builderForValue.build());
         }
         return this;
       }
@@ -38295,21 +65546,23 @@ public Builder addPageRefs(
        *
        *
        * 
-       * One or more references to visual page elements
+       * The history of this annotation.
        * 

        *
-       * repeated .google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef page_refs = 1;
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Provenance provenance = 3 [deprecated = true];
        * 
        */
-      public Builder addPageRefs(
+      @java.lang.Deprecated
+      public Builder addProvenance(
           int index,
-          com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef.Builder builderForValue) {
-        if (pageRefsBuilder_ == null) {
-          ensurePageRefsIsMutable();
-          pageRefs_.add(index, builderForValue.build());
+          com.google.cloud.documentai.v1beta2.Document.Provenance.Builder builderForValue) {
+        if (provenanceBuilder_ == null) {
+          ensureProvenanceIsMutable();
+          provenance_.add(index, builderForValue.build());
           onChanged();
         } else {
-          pageRefsBuilder_.addMessage(index, builderForValue.build());
+          provenanceBuilder_.addMessage(index, builderForValue.build());
         }
         return this;
       }
@@ -38317,22 +65570,23 @@ public Builder addPageRefs(
        *
        *
        * 
-       * One or more references to visual page elements
+       * The history of this annotation.
        * 

        *
-       * repeated .google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef page_refs = 1;
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Provenance provenance = 3 [deprecated = true];
        * 
        */
-      public Builder addAllPageRefs(
-          java.lang.Iterable<
-                  ? extends com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef>
+      @java.lang.Deprecated
+      public Builder addAllProvenance(
+          java.lang.Iterable
               values) {
-        if (pageRefsBuilder_ == null) {
-          ensurePageRefsIsMutable();
-          com.google.protobuf.AbstractMessageLite.Builder.addAll(values, pageRefs_);
+        if (provenanceBuilder_ == null) {
+          ensureProvenanceIsMutable();
+          com.google.protobuf.AbstractMessageLite.Builder.addAll(values, provenance_);
           onChanged();
         } else {
-          pageRefsBuilder_.addAllMessages(values);
+          provenanceBuilder_.addAllMessages(values);
         }
         return this;
       }
@@ -38340,19 +65594,21 @@ public Builder addAllPageRefs(
        *
        *
        * 
-       * One or more references to visual page elements
+       * The history of this annotation.
        * 

        *
-       * repeated .google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef page_refs = 1;
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Provenance provenance = 3 [deprecated = true];
        * 
        */
-      public Builder clearPageRefs() {
-        if (pageRefsBuilder_ == null) {
-          pageRefs_ = java.util.Collections.emptyList();
-          bitField0_ = (bitField0_ & ~0x00000001);
+      @java.lang.Deprecated
+      public Builder clearProvenance() {
+        if (provenanceBuilder_ == null) {
+          provenance_ = java.util.Collections.emptyList();
+          bitField0_ = (bitField0_ & ~0x00000004);
           onChanged();
         } else {
-          pageRefsBuilder_.clear();
+          provenanceBuilder_.clear();
         }
         return this;
       }
@@ -38360,19 +65616,21 @@ public Builder clearPageRefs() {
        *
        *
        * 
-       * One or more references to visual page elements
+       * The history of this annotation.
        * 

        *
-       * repeated .google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef page_refs = 1;
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Provenance provenance = 3 [deprecated = true];
        * 
        */
-      public Builder removePageRefs(int index) {
-        if (pageRefsBuilder_ == null) {
-          ensurePageRefsIsMutable();
-          pageRefs_.remove(index);
+      @java.lang.Deprecated
+      public Builder removeProvenance(int index) {
+        if (provenanceBuilder_ == null) {
+          ensureProvenanceIsMutable();
+          provenance_.remove(index);
           onChanged();
         } else {
-          pageRefsBuilder_.remove(index);
+          provenanceBuilder_.remove(index);
         }
         return this;
       }
@@ -38380,118 +65638,128 @@ public Builder removePageRefs(int index) {
        *
        *
        * 
-       * One or more references to visual page elements
+       * The history of this annotation.
        * 

        *
-       * repeated .google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef page_refs = 1;
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Provenance provenance = 3 [deprecated = true];
        * 
        */
-      public com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef.Builder
-          getPageRefsBuilder(int index) {
-        return getPageRefsFieldBuilder().getBuilder(index);
+      @java.lang.Deprecated
+      public com.google.cloud.documentai.v1beta2.Document.Provenance.Builder getProvenanceBuilder(
+          int index) {
+        return getProvenanceFieldBuilder().getBuilder(index);
       }
       /**
        *
        *
        * 
-       * One or more references to visual page elements
+       * The history of this annotation.
        * 

        *
-       * repeated .google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef page_refs = 1;
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Provenance provenance = 3 [deprecated = true];
        * 
        */
-      public com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRefOrBuilder
-          getPageRefsOrBuilder(int index) {
-        if (pageRefsBuilder_ == null) {
-          return pageRefs_.get(index);
+      @java.lang.Deprecated
+      public com.google.cloud.documentai.v1beta2.Document.ProvenanceOrBuilder
+          getProvenanceOrBuilder(int index) {
+        if (provenanceBuilder_ == null) {
+          return provenance_.get(index);
         } else {
-          return pageRefsBuilder_.getMessageOrBuilder(index);
+          return provenanceBuilder_.getMessageOrBuilder(index);
         }
       }
       /**
        *
        *
        * 
-       * One or more references to visual page elements
+       * The history of this annotation.
        * 

        *
-       * repeated .google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef page_refs = 1;
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Provenance provenance = 3 [deprecated = true];
        * 
        */
+      @java.lang.Deprecated
       public java.util.List<
-              ? extends com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRefOrBuilder>
-          getPageRefsOrBuilderList() {
-        if (pageRefsBuilder_ != null) {
-          return pageRefsBuilder_.getMessageOrBuilderList();
+              ? extends com.google.cloud.documentai.v1beta2.Document.ProvenanceOrBuilder>
+          getProvenanceOrBuilderList() {
+        if (provenanceBuilder_ != null) {
+          return provenanceBuilder_.getMessageOrBuilderList();
         } else {
-          return java.util.Collections.unmodifiableList(pageRefs_);
+          return java.util.Collections.unmodifiableList(provenance_);
         }
       }
       /**
        *
        *
        * 
-       * One or more references to visual page elements
+       * The history of this annotation.
        * 

        *
-       * repeated .google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef page_refs = 1;
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Provenance provenance = 3 [deprecated = true];
        * 
        */
-      public com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef.Builder
-          addPageRefsBuilder() {
-        return getPageRefsFieldBuilder()
+      @java.lang.Deprecated
+      public com.google.cloud.documentai.v1beta2.Document.Provenance.Builder
+          addProvenanceBuilder() {
+        return getProvenanceFieldBuilder()
             .addBuilder(
-                com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef
-                    .getDefaultInstance());
+                com.google.cloud.documentai.v1beta2.Document.Provenance.getDefaultInstance());
       }
       /**
        *
        *
        * 
-       * One or more references to visual page elements
+       * The history of this annotation.
        * 

        *
-       * repeated .google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef page_refs = 1;
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Provenance provenance = 3 [deprecated = true];
        * 
        */
-      public com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef.Builder
-          addPageRefsBuilder(int index) {
-        return getPageRefsFieldBuilder()
+      @java.lang.Deprecated
+      public com.google.cloud.documentai.v1beta2.Document.Provenance.Builder addProvenanceBuilder(
+          int index) {
+        return getProvenanceFieldBuilder()
             .addBuilder(
                 index,
-                com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef
-                    .getDefaultInstance());
+                com.google.cloud.documentai.v1beta2.Document.Provenance.getDefaultInstance());
       }
       /**
        *
        *
        * 
-       * One or more references to visual page elements
+       * The history of this annotation.
        * 

        *
-       * repeated .google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef page_refs = 1;
+       * 
+       * repeated .google.cloud.documentai.v1beta2.Document.Provenance provenance = 3 [deprecated = true];
        * 
        */
-      public java.util.List
-          getPageRefsBuilderList() {
-        return getPageRefsFieldBuilder().getBuilderList();
+      @java.lang.Deprecated
+      public java.util.List
+          getProvenanceBuilderList() {
+        return getProvenanceFieldBuilder().getBuilderList();
       }
 
       private com.google.protobuf.RepeatedFieldBuilderV3<
-              com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef,
-              com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef.Builder,
-              com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRefOrBuilder>
-          getPageRefsFieldBuilder() {
-        if (pageRefsBuilder_ == null) {
-          pageRefsBuilder_ =
+              com.google.cloud.documentai.v1beta2.Document.Provenance,
+              com.google.cloud.documentai.v1beta2.Document.Provenance.Builder,
+              com.google.cloud.documentai.v1beta2.Document.ProvenanceOrBuilder>
+          getProvenanceFieldBuilder() {
+        if (provenanceBuilder_ == null) {
+          provenanceBuilder_ =
               new com.google.protobuf.RepeatedFieldBuilderV3<
-                  com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef,
-                  com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef.Builder,
-                  com.google.cloud.documentai.v1beta2.Document.PageAnchor.PageRefOrBuilder>(
-                  pageRefs_, ((bitField0_ & 0x00000001) != 0), getParentForChildren(), isClean());
-          pageRefs_ = null;
+                  com.google.cloud.documentai.v1beta2.Document.Provenance,
+                  com.google.cloud.documentai.v1beta2.Document.Provenance.Builder,
+                  com.google.cloud.documentai.v1beta2.Document.ProvenanceOrBuilder>(
+                  provenance_, ((bitField0_ & 0x00000004) != 0), getParentForChildren(), isClean());
+          provenance_ = null;
         }
-        return pageRefsBuilder_;
+        return provenanceBuilder_;
       }
 
       @java.lang.Override
@@ -38506,24 +65774,24 @@ public final Builder mergeUnknownFields(
         return super.mergeUnknownFields(unknownFields);
       }
 
-      // @@protoc_insertion_point(builder_scope:google.cloud.documentai.v1beta2.Document.PageAnchor)
+      // @@protoc_insertion_point(builder_scope:google.cloud.documentai.v1beta2.Document.TextChange)
     }
 
-    // @@protoc_insertion_point(class_scope:google.cloud.documentai.v1beta2.Document.PageAnchor)
-    private static final com.google.cloud.documentai.v1beta2.Document.PageAnchor DEFAULT_INSTANCE;
+    // @@protoc_insertion_point(class_scope:google.cloud.documentai.v1beta2.Document.TextChange)
+    private static final com.google.cloud.documentai.v1beta2.Document.TextChange DEFAULT_INSTANCE;
 
     static {
-      DEFAULT_INSTANCE = new com.google.cloud.documentai.v1beta2.Document.PageAnchor();
+      DEFAULT_INSTANCE = new com.google.cloud.documentai.v1beta2.Document.TextChange();
     }
 
-    public static com.google.cloud.documentai.v1beta2.Document.PageAnchor getDefaultInstance() {
+    public static com.google.cloud.documentai.v1beta2.Document.TextChange getDefaultInstance() {
       return DEFAULT_INSTANCE;
     }
 
-    private static final com.google.protobuf.Parser PARSER =
-        new com.google.protobuf.AbstractParser() {
+    private static final com.google.protobuf.Parser PARSER =
+        new com.google.protobuf.AbstractParser() {
           @java.lang.Override
-          public PageAnchor parsePartialFrom(
+          public TextChange parsePartialFrom(
               com.google.protobuf.CodedInputStream input,
               com.google.protobuf.ExtensionRegistryLite extensionRegistry)
               throws com.google.protobuf.InvalidProtocolBufferException {
@@ -38543,17 +65811,17 @@ public PageAnchor parsePartialFrom(
           }
         };
 
-    public static com.google.protobuf.Parser parser() {
+    public static com.google.protobuf.Parser parser() {
       return PARSER;
     }
 
     @java.lang.Override
-    public com.google.protobuf.Parser getParserForType() {
+    public com.google.protobuf.Parser getParserForType() {
       return PARSER;
     }
 
     @java.lang.Override
-    public com.google.cloud.documentai.v1beta2.Document.PageAnchor getDefaultInstanceForType() {
+    public com.google.cloud.documentai.v1beta2.Document.TextChange getDefaultInstanceForType() {
       return DEFAULT_INSTANCE;
     }
   }
@@ -38612,14 +65880,13 @@ public SourceCase getSourceCase() {
    *
    *
    * 
-   * Currently supports Google Cloud Storage URI of the form
-   *    `gs://bucket_name/object_name`. Object versioning is not supported.
-   *    See [Google Cloud Storage Request
-   *    URIs](https://cloud.google.com/storage/docs/reference-uris) for more
-   *    info.
+   * Optional. Currently supports Google Cloud Storage URI of the form
+   * `gs://bucket_name/object_name`. Object versioning is not supported.
+   * For more information, refer to [Google Cloud Storage Request
+   * URIs](https://cloud.google.com/storage/docs/reference-uris).
    * 

    *
-   * string uri = 1;
+   * string uri = 1 [(.google.api.field_behavior) = OPTIONAL];
    *
    * @return Whether the uri field is set.
    */
@@ -38630,14 +65897,13 @@ public boolean hasUri() {
    *
    *
    * 
-   * Currently supports Google Cloud Storage URI of the form
-   *    `gs://bucket_name/object_name`. Object versioning is not supported.
-   *    See [Google Cloud Storage Request
-   *    URIs](https://cloud.google.com/storage/docs/reference-uris) for more
-   *    info.
+   * Optional. Currently supports Google Cloud Storage URI of the form
+   * `gs://bucket_name/object_name`. Object versioning is not supported.
+   * For more information, refer to [Google Cloud Storage Request
+   * URIs](https://cloud.google.com/storage/docs/reference-uris).
    * 

    *
-   * string uri = 1;
+   * string uri = 1 [(.google.api.field_behavior) = OPTIONAL];
    *
    * @return The uri.
    */
@@ -38661,14 +65927,13 @@ public java.lang.String getUri() {
    *
    *
    * 
-   * Currently supports Google Cloud Storage URI of the form
-   *    `gs://bucket_name/object_name`. Object versioning is not supported.
-   *    See [Google Cloud Storage Request
-   *    URIs](https://cloud.google.com/storage/docs/reference-uris) for more
-   *    info.
+   * Optional. Currently supports Google Cloud Storage URI of the form
+   * `gs://bucket_name/object_name`. Object versioning is not supported.
+   * For more information, refer to [Google Cloud Storage Request
+   * URIs](https://cloud.google.com/storage/docs/reference-uris).
    * 

    *
-   * string uri = 1;
+   * string uri = 1 [(.google.api.field_behavior) = OPTIONAL];
    *
    * @return The bytes for uri.
    */
@@ -38694,12 +65959,12 @@ public com.google.protobuf.ByteString getUriBytes() {
    *
    *
    * 
-   * Inline document content, represented as a stream of bytes.
+   * Optional. Inline document content, represented as a stream of bytes.
    * Note: As with all `bytes` fields, protobuffers use a pure binary
    * representation, whereas JSON representations use base64.
    * 

    *
-   * bytes content = 2;
+   * bytes content = 2 [(.google.api.field_behavior) = OPTIONAL];
    *
    * @return Whether the content field is set.
    */
@@ -38711,12 +65976,12 @@ public boolean hasContent() {
    *
    *
    * 
-   * Inline document content, represented as a stream of bytes.
+   * Optional. Inline document content, represented as a stream of bytes.
    * Note: As with all `bytes` fields, protobuffers use a pure binary
    * representation, whereas JSON representations use base64.
    * 

    *
-   * bytes content = 2;
+   * bytes content = 2 [(.google.api.field_behavior) = OPTIONAL];
    *
    * @return The content.
    */
@@ -38736,9 +66001,8 @@ public com.google.protobuf.ByteString getContent() {
    *
    *
    * 
-   * An IANA published MIME type (also referred to as media type). For more
-   * information, see
-   * https://www.iana.org/assignments/media-types/media-types.xhtml.
+   * An IANA published [media type (MIME
+   * type)](https://www.iana.org/assignments/media-types/media-types.xhtml).
    * 

    *
    * string mime_type = 3;
@@ -38761,9 +66025,8 @@ public java.lang.String getMimeType() {
    *
    *
    * 
-   * An IANA published MIME type (also referred to as media type). For more
-   * information, see
-   * https://www.iana.org/assignments/media-types/media-types.xhtml.
+   * An IANA published [media type (MIME
+   * type)](https://www.iana.org/assignments/media-types/media-types.xhtml).
    * 

    *
    * string mime_type = 3;
@@ -38791,10 +66054,10 @@ public com.google.protobuf.ByteString getMimeTypeBytes() {
    *
    *
    * 
-   * UTF-8 encoded text in reading order from the document.
+   * Optional. UTF-8 encoded text in reading order from the document.
    * 

    *
-   * string text = 4;
+   * string text = 4 [(.google.api.field_behavior) = OPTIONAL];
    *
    * @return The text.
    */
@@ -38814,10 +66077,10 @@ public java.lang.String getText() {
    *
    *
    * 
-   * UTF-8 encoded text in reading order from the document.
+   * Optional. UTF-8 encoded text in reading order from the document.
    * 

    *
-   * string text = 4;
+   * string text = 4 [(.google.api.field_behavior) = OPTIONAL];
    *
    * @return The bytes for text.
    */
@@ -38842,12 +66105,16 @@ public com.google.protobuf.ByteString getTextBytes() {
    *
    *
    * 
-   * Styles for the [Document.text][google.cloud.documentai.v1beta2.Document.text].
+   * Styles for the
+   * [Document.text][google.cloud.documentai.v1beta2.Document.text].
    * 

    *
-   * repeated .google.cloud.documentai.v1beta2.Document.Style text_styles = 5;
+   * 
+   * repeated .google.cloud.documentai.v1beta2.Document.Style text_styles = 5 [deprecated = true];
+   * 
    */
   @java.lang.Override
+  @java.lang.Deprecated
   public java.util.List getTextStylesList() {
     return textStyles_;
   }
@@ -38855,12 +66122,16 @@ public java.util.List getTex
    *
    *
    * 
-   * Styles for the [Document.text][google.cloud.documentai.v1beta2.Document.text].
+   * Styles for the
+   * [Document.text][google.cloud.documentai.v1beta2.Document.text].
    * 

    *
-   * repeated .google.cloud.documentai.v1beta2.Document.Style text_styles = 5;
+   * 
+   * repeated .google.cloud.documentai.v1beta2.Document.Style text_styles = 5 [deprecated = true];
+   * 
    */
   @java.lang.Override
+  @java.lang.Deprecated
   public java.util.List
       getTextStylesOrBuilderList() {
     return textStyles_;
@@ -38869,12 +66140,16 @@ public java.util.List getTex
    *
    *
    * 
-   * Styles for the [Document.text][google.cloud.documentai.v1beta2.Document.text].
+   * Styles for the
+   * [Document.text][google.cloud.documentai.v1beta2.Document.text].
    * 

    *
-   * repeated .google.cloud.documentai.v1beta2.Document.Style text_styles = 5;
+   * 
+   * repeated .google.cloud.documentai.v1beta2.Document.Style text_styles = 5 [deprecated = true];
+   * 
    */
   @java.lang.Override
+  @java.lang.Deprecated
   public int getTextStylesCount() {
     return textStyles_.size();
   }
@@ -38882,12 +66157,16 @@ public int getTextStylesCount() {
    *
    *
    * 
-   * Styles for the [Document.text][google.cloud.documentai.v1beta2.Document.text].
+   * Styles for the
+   * [Document.text][google.cloud.documentai.v1beta2.Document.text].
    * 

    *
-   * repeated .google.cloud.documentai.v1beta2.Document.Style text_styles = 5;
+   * 
+   * repeated .google.cloud.documentai.v1beta2.Document.Style text_styles = 5 [deprecated = true];
+   * 
    */
   @java.lang.Override
+  @java.lang.Deprecated
   public com.google.cloud.documentai.v1beta2.Document.Style getTextStyles(int index) {
     return textStyles_.get(index);
   }
@@ -38895,12 +66174,16 @@ public com.google.cloud.documentai.v1beta2.Document.Style getTextStyles(int inde
    *
    *
    * 
-   * Styles for the [Document.text][google.cloud.documentai.v1beta2.Document.text].
+   * Styles for the
+   * [Document.text][google.cloud.documentai.v1beta2.Document.text].
    * 

    *
-   * repeated .google.cloud.documentai.v1beta2.Document.Style text_styles = 5;
+   * 
+   * repeated .google.cloud.documentai.v1beta2.Document.Style text_styles = 5 [deprecated = true];
+   * 
    */
   @java.lang.Override
+  @java.lang.Deprecated
   public com.google.cloud.documentai.v1beta2.Document.StyleOrBuilder getTextStylesOrBuilder(
       int index) {
     return textStyles_.get(index);
@@ -38914,7 +66197,8 @@ public com.google.cloud.documentai.v1beta2.Document.StyleOrBuilder getTextStyles
    *
    *
    * 
-   * Visual page layout for the [Document][google.cloud.documentai.v1beta2.Document].
+   * Visual page layout for the
+   * [Document][google.cloud.documentai.v1beta2.Document].
    * 

    *
    * repeated .google.cloud.documentai.v1beta2.Document.Page pages = 6;
@@ -38927,7 +66211,8 @@ public java.util.List getPage
    *
    *
    * 
-   * Visual page layout for the [Document][google.cloud.documentai.v1beta2.Document].
+   * Visual page layout for the
+   * [Document][google.cloud.documentai.v1beta2.Document].
    * 

    *
    * repeated .google.cloud.documentai.v1beta2.Document.Page pages = 6;
@@ -38941,7 +66226,8 @@ public java.util.List getPage
    *
    *
    * 
-   * Visual page layout for the [Document][google.cloud.documentai.v1beta2.Document].
+   * Visual page layout for the
+   * [Document][google.cloud.documentai.v1beta2.Document].
    * 

    *
    * repeated .google.cloud.documentai.v1beta2.Document.Page pages = 6;
@@ -38954,7 +66240,8 @@ public int getPagesCount() {
    *
    *
    * 
-   * Visual page layout for the [Document][google.cloud.documentai.v1beta2.Document].
+   * Visual page layout for the
+   * [Document][google.cloud.documentai.v1beta2.Document].
    * 

    *
    * repeated .google.cloud.documentai.v1beta2.Document.Page pages = 6;
@@ -38967,7 +66254,8 @@ public com.google.cloud.documentai.v1beta2.Document.Page getPages(int index) {
    *
    *
    * 
-   * Visual page layout for the [Document][google.cloud.documentai.v1beta2.Document].
+   * Visual page layout for the
+   * [Document][google.cloud.documentai.v1beta2.Document].
    * 

    *
    * repeated .google.cloud.documentai.v1beta2.Document.Page pages = 6;
@@ -38985,8 +66273,9 @@ public com.google.cloud.documentai.v1beta2.Document.PageOrBuilder getPagesOrBuil
    *
    *
    * 
-   * A list of entities detected on [Document.text][google.cloud.documentai.v1beta2.Document.text]. For document shards,
-   * entities in this list may cross shard boundaries.
+   * A list of entities detected on
+   * [Document.text][google.cloud.documentai.v1beta2.Document.text]. For
+   * document shards, entities in this list may cross shard boundaries.
    * 

    *
    * repeated .google.cloud.documentai.v1beta2.Document.Entity entities = 7;
@@ -38999,8 +66288,9 @@ public java.util.List getEn
    *
    *
    * 
-   * A list of entities detected on [Document.text][google.cloud.documentai.v1beta2.Document.text]. For document shards,
-   * entities in this list may cross shard boundaries.
+   * A list of entities detected on
+   * [Document.text][google.cloud.documentai.v1beta2.Document.text]. For
+   * document shards, entities in this list may cross shard boundaries.
    * 

    *
    * repeated .google.cloud.documentai.v1beta2.Document.Entity entities = 7;
@@ -39014,8 +66304,9 @@ public java.util.List getEn
    *
    *
    * 
-   * A list of entities detected on [Document.text][google.cloud.documentai.v1beta2.Document.text]. For document shards,
-   * entities in this list may cross shard boundaries.
+   * A list of entities detected on
+   * [Document.text][google.cloud.documentai.v1beta2.Document.text]. For
+   * document shards, entities in this list may cross shard boundaries.
    * 

    *
    * repeated .google.cloud.documentai.v1beta2.Document.Entity entities = 7;
@@ -39028,8 +66319,9 @@ public int getEntitiesCount() {
    *
    *
    * 
-   * A list of entities detected on [Document.text][google.cloud.documentai.v1beta2.Document.text]. For document shards,
-   * entities in this list may cross shard boundaries.
+   * A list of entities detected on
+   * [Document.text][google.cloud.documentai.v1beta2.Document.text]. For
+   * document shards, entities in this list may cross shard boundaries.
    * 

    *
    * repeated .google.cloud.documentai.v1beta2.Document.Entity entities = 7;
@@ -39042,8 +66334,9 @@ public com.google.cloud.documentai.v1beta2.Document.Entity getEntities(int index
    *
    *
    * 
-   * A list of entities detected on [Document.text][google.cloud.documentai.v1beta2.Document.text]. For document shards,
-   * entities in this list may cross shard boundaries.
+   * A list of entities detected on
+   * [Document.text][google.cloud.documentai.v1beta2.Document.text]. For
+   * document shards, entities in this list may cross shard boundaries.
    * 

    *
    * repeated .google.cloud.documentai.v1beta2.Document.Entity entities = 7;
@@ -39063,7 +66356,8 @@ public com.google.cloud.documentai.v1beta2.Document.EntityOrBuilder getEntitiesO
    *
    *
    * 
-   * Relationship among [Document.entities][google.cloud.documentai.v1beta2.Document.entities].
+   * Placeholder.  Relationship among
+   * [Document.entities][google.cloud.documentai.v1beta2.Document.entities].
    * 

    *
    * repeated .google.cloud.documentai.v1beta2.Document.EntityRelation entity_relations = 8;
@@ -39078,7 +66372,8 @@ public com.google.cloud.documentai.v1beta2.Document.EntityOrBuilder getEntitiesO
    *
    *
    * 
-   * Relationship among [Document.entities][google.cloud.documentai.v1beta2.Document.entities].
+   * Placeholder.  Relationship among
+   * [Document.entities][google.cloud.documentai.v1beta2.Document.entities].
    * 

    *
    * repeated .google.cloud.documentai.v1beta2.Document.EntityRelation entity_relations = 8;
@@ -39094,7 +66389,8 @@ public com.google.cloud.documentai.v1beta2.Document.EntityOrBuilder getEntitiesO
    *
    *
    * 
-   * Relationship among [Document.entities][google.cloud.documentai.v1beta2.Document.entities].
+   * Placeholder.  Relationship among
+   * [Document.entities][google.cloud.documentai.v1beta2.Document.entities].
    * 

    *
    * repeated .google.cloud.documentai.v1beta2.Document.EntityRelation entity_relations = 8;
@@ -39108,7 +66404,8 @@ public int getEntityRelationsCount() {
    *
    *
    * 
-   * Relationship among [Document.entities][google.cloud.documentai.v1beta2.Document.entities].
+   * Placeholder.  Relationship among
+   * [Document.entities][google.cloud.documentai.v1beta2.Document.entities].
    * 

    *
    * repeated .google.cloud.documentai.v1beta2.Document.EntityRelation entity_relations = 8;
@@ -39122,7 +66419,8 @@ public com.google.cloud.documentai.v1beta2.Document.EntityRelation getEntityRela
    *
    *
    * 
-   * Relationship among [Document.entities][google.cloud.documentai.v1beta2.Document.entities].
+   * Placeholder.  Relationship among
+   * [Document.entities][google.cloud.documentai.v1beta2.Document.entities].
    * 

    *
    * repeated .google.cloud.documentai.v1beta2.Document.EntityRelation entity_relations = 8;
@@ -39134,6 +66432,94 @@ public com.google.cloud.documentai.v1beta2.Document.EntityRelation getEntityRela
     return entityRelations_.get(index);
   }
 
+  public static final int TEXT_CHANGES_FIELD_NUMBER = 14;
+
+  @SuppressWarnings("serial")
+  private java.util.List textChanges_;
+  /**
+   *
+   *
+   * 
+   * Placeholder.  A list of text corrections made to
+   * [Document.text][google.cloud.documentai.v1beta2.Document.text].  This is
+   * usually used for annotating corrections to OCR mistakes.  Text changes for
+   * a given revision may not overlap with each other.
+   * 

+   *
+   * repeated .google.cloud.documentai.v1beta2.Document.TextChange text_changes = 14;
+   */
+  @java.lang.Override
+  public java.util.List
+      getTextChangesList() {
+    return textChanges_;
+  }
+  /**
+   *
+   *
+   * 
+   * Placeholder.  A list of text corrections made to
+   * [Document.text][google.cloud.documentai.v1beta2.Document.text].  This is
+   * usually used for annotating corrections to OCR mistakes.  Text changes for
+   * a given revision may not overlap with each other.
+   * 

+   *
+   * repeated .google.cloud.documentai.v1beta2.Document.TextChange text_changes = 14;
+   */
+  @java.lang.Override
+  public java.util.List
+      getTextChangesOrBuilderList() {
+    return textChanges_;
+  }
+  /**
+   *
+   *
+   * 
+   * Placeholder.  A list of text corrections made to
+   * [Document.text][google.cloud.documentai.v1beta2.Document.text].  This is
+   * usually used for annotating corrections to OCR mistakes.  Text changes for
+   * a given revision may not overlap with each other.
+   * 

+   *
+   * repeated .google.cloud.documentai.v1beta2.Document.TextChange text_changes = 14;
+   */
+  @java.lang.Override
+  public int getTextChangesCount() {
+    return textChanges_.size();
+  }
+  /**
+   *
+   *
+   * 
+   * Placeholder.  A list of text corrections made to
+   * [Document.text][google.cloud.documentai.v1beta2.Document.text].  This is
+   * usually used for annotating corrections to OCR mistakes.  Text changes for
+   * a given revision may not overlap with each other.
+   * 

+   *
+   * repeated .google.cloud.documentai.v1beta2.Document.TextChange text_changes = 14;
+   */
+  @java.lang.Override
+  public com.google.cloud.documentai.v1beta2.Document.TextChange getTextChanges(int index) {
+    return textChanges_.get(index);
+  }
+  /**
+   *
+   *
+   * 
+   * Placeholder.  A list of text corrections made to
+   * [Document.text][google.cloud.documentai.v1beta2.Document.text].  This is
+   * usually used for annotating corrections to OCR mistakes.  Text changes for
+   * a given revision may not overlap with each other.
+   * 

+   *
+   * repeated .google.cloud.documentai.v1beta2.Document.TextChange text_changes = 14;
+   */
+  @java.lang.Override
+  public com.google.cloud.documentai.v1beta2.Document.TextChangeOrBuilder getTextChangesOrBuilder(
+      int index) {
+    return textChanges_.get(index);
+  }
+
   public static final int SHARD_INFO_FIELD_NUMBER = 9;
   private com.google.cloud.documentai.v1beta2.Document.ShardInfo shardInfo_;
   /**
@@ -39304,6 +66690,78 @@ public com.google.rpc.StatusOrBuilder getErrorOrBuilder() {
     return error_ == null ? com.google.rpc.Status.getDefaultInstance() : error_;
   }
 
+  public static final int REVISIONS_FIELD_NUMBER = 13;
+
+  @SuppressWarnings("serial")
+  private java.util.List revisions_;
+  /**
+   *
+   *
+   * 
+   * Placeholder. Revision history of this document.
+   * 

+   *
+   * repeated .google.cloud.documentai.v1beta2.Document.Revision revisions = 13;
+   */
+  @java.lang.Override
+  public java.util.List getRevisionsList() {
+    return revisions_;
+  }
+  /**
+   *
+   *
+   * 
+   * Placeholder. Revision history of this document.
+   * 

+   *
+   * repeated .google.cloud.documentai.v1beta2.Document.Revision revisions = 13;
+   */
+  @java.lang.Override
+  public java.util.List
+      getRevisionsOrBuilderList() {
+    return revisions_;
+  }
+  /**
+   *
+   *
+   * 
+   * Placeholder. Revision history of this document.
+   * 

+   *
+   * repeated .google.cloud.documentai.v1beta2.Document.Revision revisions = 13;
+   */
+  @java.lang.Override
+  public int getRevisionsCount() {
+    return revisions_.size();
+  }
+  /**
+   *
+   *
+   * 
+   * Placeholder. Revision history of this document.
+   * 

+   *
+   * repeated .google.cloud.documentai.v1beta2.Document.Revision revisions = 13;
+   */
+  @java.lang.Override
+  public com.google.cloud.documentai.v1beta2.Document.Revision getRevisions(int index) {
+    return revisions_.get(index);
+  }
+  /**
+   *
+   *
+   * 
+   * Placeholder. Revision history of this document.
+   * 

+   *
+   * repeated .google.cloud.documentai.v1beta2.Document.Revision revisions = 13;
+   */
+  @java.lang.Override
+  public com.google.cloud.documentai.v1beta2.Document.RevisionOrBuilder getRevisionsOrBuilder(
+      int index) {
+    return revisions_.get(index);
+  }
+
   private byte memoizedIsInitialized = -1;
 
   @java.lang.Override
@@ -39351,6 +66809,12 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     for (int i = 0; i < labels_.size(); i++) {
       output.writeMessage(11, labels_.get(i));
     }
+    for (int i = 0; i < revisions_.size(); i++) {
+      output.writeMessage(13, revisions_.get(i));
+    }
+    for (int i = 0; i < textChanges_.size(); i++) {
+      output.writeMessage(14, textChanges_.get(i));
+    }
     getUnknownFields().writeTo(output);
   }
 
@@ -39395,6 +66859,12 @@ public int getSerializedSize() {
     for (int i = 0; i < labels_.size(); i++) {
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(11, labels_.get(i));
     }
+    for (int i = 0; i < revisions_.size(); i++) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(13, revisions_.get(i));
+    }
+    for (int i = 0; i < textChanges_.size(); i++) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(14, textChanges_.get(i));
+    }
     size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
@@ -39417,6 +66887,7 @@ public boolean equals(final java.lang.Object obj) {
     if (!getPagesList().equals(other.getPagesList())) return false;
     if (!getEntitiesList().equals(other.getEntitiesList())) return false;
     if (!getEntityRelationsList().equals(other.getEntityRelationsList())) return false;
+    if (!getTextChangesList().equals(other.getTextChangesList())) return false;
     if (hasShardInfo() != other.hasShardInfo()) return false;
     if (hasShardInfo()) {
       if (!getShardInfo().equals(other.getShardInfo())) return false;
@@ -39426,6 +66897,7 @@ public boolean equals(final java.lang.Object obj) {
     if (hasError()) {
       if (!getError().equals(other.getError())) return false;
     }
+    if (!getRevisionsList().equals(other.getRevisionsList())) return false;
     if (!getSourceCase().equals(other.getSourceCase())) return false;
     switch (sourceCase_) {
       case 1:
@@ -39468,6 +66940,10 @@ public int hashCode() {
       hash = (37 * hash) + ENTITY_RELATIONS_FIELD_NUMBER;
       hash = (53 * hash) + getEntityRelationsList().hashCode();
     }
+    if (getTextChangesCount() > 0) {
+      hash = (37 * hash) + TEXT_CHANGES_FIELD_NUMBER;
+      hash = (53 * hash) + getTextChangesList().hashCode();
+    }
     if (hasShardInfo()) {
       hash = (37 * hash) + SHARD_INFO_FIELD_NUMBER;
       hash = (53 * hash) + getShardInfo().hashCode();
@@ -39480,6 +66956,10 @@ public int hashCode() {
       hash = (37 * hash) + ERROR_FIELD_NUMBER;
       hash = (53 * hash) + getError().hashCode();
     }
+    if (getRevisionsCount() > 0) {
+      hash = (37 * hash) + REVISIONS_FIELD_NUMBER;
+      hash = (53 * hash) + getRevisionsList().hashCode();
+    }
     switch (sourceCase_) {
       case 1:
         hash = (37 * hash) + URI_FIELD_NUMBER;
@@ -39596,11 +67076,10 @@ protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.Build
    *
    *
    * 
-   * Document represents the canonical document resource in Document Understanding
-   * AI.
-   * It is an interchange format that provides insights into documents and allows
-   * for collaboration between users and Document Understanding AI to iterate and
-   * optimize for quality.
+   * Document represents the canonical document resource in Document AI. It is an
+   * interchange format that provides insights into documents and allows for
+   * collaboration between users and Document AI to iterate and optimize for
+   * quality.
    * 

    *
    * Protobuf type {@code google.cloud.documentai.v1beta2.Document}
@@ -39665,6 +67144,13 @@ public Builder clear() {
         entityRelationsBuilder_.clear();
       }
       bitField0_ = (bitField0_ & ~0x00000080);
+      if (textChangesBuilder_ == null) {
+        textChanges_ = java.util.Collections.emptyList();
+      } else {
+        textChanges_ = null;
+        textChangesBuilder_.clear();
+      }
+      bitField0_ = (bitField0_ & ~0x00000100);
       shardInfo_ = null;
       if (shardInfoBuilder_ != null) {
         shardInfoBuilder_.dispose();
@@ -39676,12 +67162,19 @@ public Builder clear() {
         labels_ = null;
         labelsBuilder_.clear();
       }
-      bitField0_ = (bitField0_ & ~0x00000200);
+      bitField0_ = (bitField0_ & ~0x00000400);
       error_ = null;
       if (errorBuilder_ != null) {
         errorBuilder_.dispose();
         errorBuilder_ = null;
       }
+      if (revisionsBuilder_ == null) {
+        revisions_ = java.util.Collections.emptyList();
+      } else {
+        revisions_ = null;
+        revisionsBuilder_.clear();
+      }
+      bitField0_ = (bitField0_ & ~0x00001000);
       sourceCase_ = 0;
       source_ = null;
       return this;
@@ -39757,15 +67250,33 @@ private void buildPartialRepeatedFields(com.google.cloud.documentai.v1beta2.Docu
       } else {
         result.entityRelations_ = entityRelationsBuilder_.build();
       }
+      if (textChangesBuilder_ == null) {
+        if (((bitField0_ & 0x00000100) != 0)) {
+          textChanges_ = java.util.Collections.unmodifiableList(textChanges_);
+          bitField0_ = (bitField0_ & ~0x00000100);
+        }
+        result.textChanges_ = textChanges_;
+      } else {
+        result.textChanges_ = textChangesBuilder_.build();
+      }
       if (labelsBuilder_ == null) {
-        if (((bitField0_ & 0x00000200) != 0)) {
+        if (((bitField0_ & 0x00000400) != 0)) {
           labels_ = java.util.Collections.unmodifiableList(labels_);
-          bitField0_ = (bitField0_ & ~0x00000200);
+          bitField0_ = (bitField0_ & ~0x00000400);
         }
         result.labels_ = labels_;
       } else {
         result.labels_ = labelsBuilder_.build();
       }
+      if (revisionsBuilder_ == null) {
+        if (((bitField0_ & 0x00001000) != 0)) {
+          revisions_ = java.util.Collections.unmodifiableList(revisions_);
+          bitField0_ = (bitField0_ & ~0x00001000);
+        }
+        result.revisions_ = revisions_;
+      } else {
+        result.revisions_ = revisionsBuilder_.build();
+      }
     }
 
     private void buildPartial0(com.google.cloud.documentai.v1beta2.Document result) {
@@ -39776,10 +67287,10 @@ private void buildPartial0(com.google.cloud.documentai.v1beta2.Document result)
       if (((from_bitField0_ & 0x00000008) != 0)) {
         result.text_ = text_;
       }
-      if (((from_bitField0_ & 0x00000100) != 0)) {
+      if (((from_bitField0_ & 0x00000200) != 0)) {
         result.shardInfo_ = shardInfoBuilder_ == null ? shardInfo_ : shardInfoBuilder_.build();
       }
-      if (((from_bitField0_ & 0x00000400) != 0)) {
+      if (((from_bitField0_ & 0x00000800) != 0)) {
         result.error_ = errorBuilder_ == null ? error_ : errorBuilder_.build();
       }
     }
@@ -39952,6 +67463,33 @@ public Builder mergeFrom(com.google.cloud.documentai.v1beta2.Document other) {
           }
         }
       }
+      if (textChangesBuilder_ == null) {
+        if (!other.textChanges_.isEmpty()) {
+          if (textChanges_.isEmpty()) {
+            textChanges_ = other.textChanges_;
+            bitField0_ = (bitField0_ & ~0x00000100);
+          } else {
+            ensureTextChangesIsMutable();
+            textChanges_.addAll(other.textChanges_);
+          }
+          onChanged();
+        }
+      } else {
+        if (!other.textChanges_.isEmpty()) {
+          if (textChangesBuilder_.isEmpty()) {
+            textChangesBuilder_.dispose();
+            textChangesBuilder_ = null;
+            textChanges_ = other.textChanges_;
+            bitField0_ = (bitField0_ & ~0x00000100);
+            textChangesBuilder_ =
+                com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders
+                    ? getTextChangesFieldBuilder()
+                    : null;
+          } else {
+            textChangesBuilder_.addAllMessages(other.textChanges_);
+          }
+        }
+      }
       if (other.hasShardInfo()) {
         mergeShardInfo(other.getShardInfo());
       }
@@ -39959,7 +67497,7 @@ public Builder mergeFrom(com.google.cloud.documentai.v1beta2.Document other) {
         if (!other.labels_.isEmpty()) {
           if (labels_.isEmpty()) {
             labels_ = other.labels_;
-            bitField0_ = (bitField0_ & ~0x00000200);
+            bitField0_ = (bitField0_ & ~0x00000400);
           } else {
             ensureLabelsIsMutable();
             labels_.addAll(other.labels_);
@@ -39972,7 +67510,7 @@ public Builder mergeFrom(com.google.cloud.documentai.v1beta2.Document other) {
             labelsBuilder_.dispose();
             labelsBuilder_ = null;
             labels_ = other.labels_;
-            bitField0_ = (bitField0_ & ~0x00000200);
+            bitField0_ = (bitField0_ & ~0x00000400);
             labelsBuilder_ =
                 com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders
                     ? getLabelsFieldBuilder()
@@ -39985,6 +67523,33 @@ public Builder mergeFrom(com.google.cloud.documentai.v1beta2.Document other) {
       if (other.hasError()) {
         mergeError(other.getError());
       }
+      if (revisionsBuilder_ == null) {
+        if (!other.revisions_.isEmpty()) {
+          if (revisions_.isEmpty()) {
+            revisions_ = other.revisions_;
+            bitField0_ = (bitField0_ & ~0x00001000);
+          } else {
+            ensureRevisionsIsMutable();
+            revisions_.addAll(other.revisions_);
+          }
+          onChanged();
+        }
+      } else {
+        if (!other.revisions_.isEmpty()) {
+          if (revisionsBuilder_.isEmpty()) {
+            revisionsBuilder_.dispose();
+            revisionsBuilder_ = null;
+            revisions_ = other.revisions_;
+            bitField0_ = (bitField0_ & ~0x00001000);
+            revisionsBuilder_ =
+                com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders
+                    ? getRevisionsFieldBuilder()
+                    : null;
+          } else {
+            revisionsBuilder_.addAllMessages(other.revisions_);
+          }
+        }
+      }
       switch (other.getSourceCase()) {
         case URI:
           {
@@ -40113,13 +67678,13 @@ public Builder mergeFrom(
             case 74:
               {
                 input.readMessage(getShardInfoFieldBuilder().getBuilder(), extensionRegistry);
-                bitField0_ |= 0x00000100;
+                bitField0_ |= 0x00000200;
                 break;
               } // case 74
             case 82:
               {
                 input.readMessage(getErrorFieldBuilder().getBuilder(), extensionRegistry);
-                bitField0_ |= 0x00000400;
+                bitField0_ |= 0x00000800;
                 break;
               } // case 82
             case 90:
@@ -40136,6 +67701,34 @@ public Builder mergeFrom(
                 }
                 break;
               } // case 90
+            case 106:
+              {
+                com.google.cloud.documentai.v1beta2.Document.Revision m =
+                    input.readMessage(
+                        com.google.cloud.documentai.v1beta2.Document.Revision.parser(),
+                        extensionRegistry);
+                if (revisionsBuilder_ == null) {
+                  ensureRevisionsIsMutable();
+                  revisions_.add(m);
+                } else {
+                  revisionsBuilder_.addMessage(m);
+                }
+                break;
+              } // case 106
+            case 114:
+              {
+                com.google.cloud.documentai.v1beta2.Document.TextChange m =
+                    input.readMessage(
+                        com.google.cloud.documentai.v1beta2.Document.TextChange.parser(),
+                        extensionRegistry);
+                if (textChangesBuilder_ == null) {
+                  ensureTextChangesIsMutable();
+                  textChanges_.add(m);
+                } else {
+                  textChangesBuilder_.addMessage(m);
+                }
+                break;
+              } // case 114
             default:
               {
                 if (!super.parseUnknownField(input, extensionRegistry, tag)) {
@@ -40173,14 +67766,13 @@ public Builder clearSource() {
      *
      *
      * 
-     * Currently supports Google Cloud Storage URI of the form
-     *    `gs://bucket_name/object_name`. Object versioning is not supported.
-     *    See [Google Cloud Storage Request
-     *    URIs](https://cloud.google.com/storage/docs/reference-uris) for more
-     *    info.
+     * Optional. Currently supports Google Cloud Storage URI of the form
+     * `gs://bucket_name/object_name`. Object versioning is not supported.
+     * For more information, refer to [Google Cloud Storage Request
+     * URIs](https://cloud.google.com/storage/docs/reference-uris).
      * 

      *
-     * string uri = 1;
+     * string uri = 1 [(.google.api.field_behavior) = OPTIONAL];
      *
      * @return Whether the uri field is set.
      */
@@ -40192,14 +67784,13 @@ public boolean hasUri() {
      *
      *
      * 
-     * Currently supports Google Cloud Storage URI of the form
-     *    `gs://bucket_name/object_name`. Object versioning is not supported.
-     *    See [Google Cloud Storage Request
-     *    URIs](https://cloud.google.com/storage/docs/reference-uris) for more
-     *    info.
+     * Optional. Currently supports Google Cloud Storage URI of the form
+     * `gs://bucket_name/object_name`. Object versioning is not supported.
+     * For more information, refer to [Google Cloud Storage Request
+     * URIs](https://cloud.google.com/storage/docs/reference-uris).
      * 

      *
-     * string uri = 1;
+     * string uri = 1 [(.google.api.field_behavior) = OPTIONAL];
      *
      * @return The uri.
      */
@@ -40224,14 +67815,13 @@ public java.lang.String getUri() {
      *
      *
      * 
-     * Currently supports Google Cloud Storage URI of the form
-     *    `gs://bucket_name/object_name`. Object versioning is not supported.
-     *    See [Google Cloud Storage Request
-     *    URIs](https://cloud.google.com/storage/docs/reference-uris) for more
-     *    info.
+     * Optional. Currently supports Google Cloud Storage URI of the form
+     * `gs://bucket_name/object_name`. Object versioning is not supported.
+     * For more information, refer to [Google Cloud Storage Request
+     * URIs](https://cloud.google.com/storage/docs/reference-uris).
      * 

      *
-     * string uri = 1;
+     * string uri = 1 [(.google.api.field_behavior) = OPTIONAL];
      *
      * @return The bytes for uri.
      */
@@ -40256,14 +67846,13 @@ public com.google.protobuf.ByteString getUriBytes() {
      *
      *
      * 
-     * Currently supports Google Cloud Storage URI of the form
-     *    `gs://bucket_name/object_name`. Object versioning is not supported.
-     *    See [Google Cloud Storage Request
-     *    URIs](https://cloud.google.com/storage/docs/reference-uris) for more
-     *    info.
+     * Optional. Currently supports Google Cloud Storage URI of the form
+     * `gs://bucket_name/object_name`. Object versioning is not supported.
+     * For more information, refer to [Google Cloud Storage Request
+     * URIs](https://cloud.google.com/storage/docs/reference-uris).
      * 

      *
-     * string uri = 1;
+     * string uri = 1 [(.google.api.field_behavior) = OPTIONAL];
      *
      * @param value The uri to set.
      * @return This builder for chaining.
@@ -40281,14 +67870,13 @@ public Builder setUri(java.lang.String value) {
      *
      *
      * 
-     * Currently supports Google Cloud Storage URI of the form
-     *    `gs://bucket_name/object_name`. Object versioning is not supported.
-     *    See [Google Cloud Storage Request
-     *    URIs](https://cloud.google.com/storage/docs/reference-uris) for more
-     *    info.
+     * Optional. Currently supports Google Cloud Storage URI of the form
+     * `gs://bucket_name/object_name`. Object versioning is not supported.
+     * For more information, refer to [Google Cloud Storage Request
+     * URIs](https://cloud.google.com/storage/docs/reference-uris).
      * 

      *
-     * string uri = 1;
+     * string uri = 1 [(.google.api.field_behavior) = OPTIONAL];
      *
      * @return This builder for chaining.
      */
@@ -40304,14 +67892,13 @@ public Builder clearUri() {
      *
      *
      * 
-     * Currently supports Google Cloud Storage URI of the form
-     *    `gs://bucket_name/object_name`. Object versioning is not supported.
-     *    See [Google Cloud Storage Request
-     *    URIs](https://cloud.google.com/storage/docs/reference-uris) for more
-     *    info.
+     * Optional. Currently supports Google Cloud Storage URI of the form
+     * `gs://bucket_name/object_name`. Object versioning is not supported.
+     * For more information, refer to [Google Cloud Storage Request
+     * URIs](https://cloud.google.com/storage/docs/reference-uris).
      * 

      *
-     * string uri = 1;
+     * string uri = 1 [(.google.api.field_behavior) = OPTIONAL];
      *
      * @param value The bytes for uri to set.
      * @return This builder for chaining.
@@ -40331,12 +67918,12 @@ public Builder setUriBytes(com.google.protobuf.ByteString value) {
      *
      *
      * 
-     * Inline document content, represented as a stream of bytes.
+     * Optional. Inline document content, represented as a stream of bytes.
      * Note: As with all `bytes` fields, protobuffers use a pure binary
      * representation, whereas JSON representations use base64.
      * 

      *
-     * bytes content = 2;
+     * bytes content = 2 [(.google.api.field_behavior) = OPTIONAL];
      *
      * @return Whether the content field is set.
      */
@@ -40347,12 +67934,12 @@ public boolean hasContent() {
      *
      *
      * 
-     * Inline document content, represented as a stream of bytes.
+     * Optional. Inline document content, represented as a stream of bytes.
      * Note: As with all `bytes` fields, protobuffers use a pure binary
      * representation, whereas JSON representations use base64.
      * 

      *
-     * bytes content = 2;
+     * bytes content = 2 [(.google.api.field_behavior) = OPTIONAL];
      *
      * @return The content.
      */
@@ -40366,12 +67953,12 @@ public com.google.protobuf.ByteString getContent() {
      *
      *
      * 
-     * Inline document content, represented as a stream of bytes.
+     * Optional. Inline document content, represented as a stream of bytes.
      * Note: As with all `bytes` fields, protobuffers use a pure binary
      * representation, whereas JSON representations use base64.
      * 

      *
-     * bytes content = 2;
+     * bytes content = 2 [(.google.api.field_behavior) = OPTIONAL];
      *
      * @param value The content to set.
      * @return This builder for chaining.
@@ -40389,12 +67976,12 @@ public Builder setContent(com.google.protobuf.ByteString value) {
      *
      *
      * 
-     * Inline document content, represented as a stream of bytes.
+     * Optional. Inline document content, represented as a stream of bytes.
      * Note: As with all `bytes` fields, protobuffers use a pure binary
      * representation, whereas JSON representations use base64.
      * 

      *
-     * bytes content = 2;
+     * bytes content = 2 [(.google.api.field_behavior) = OPTIONAL];
      *
      * @return This builder for chaining.
      */
@@ -40412,9 +67999,8 @@ public Builder clearContent() {
      *
      *
      * 
-     * An IANA published MIME type (also referred to as media type). For more
-     * information, see
-     * https://www.iana.org/assignments/media-types/media-types.xhtml.
+     * An IANA published [media type (MIME
+     * type)](https://www.iana.org/assignments/media-types/media-types.xhtml).
      * 

      *
      * string mime_type = 3;
@@ -40436,9 +68022,8 @@ public java.lang.String getMimeType() {
      *
      *
      * 
-     * An IANA published MIME type (also referred to as media type). For more
-     * information, see
-     * https://www.iana.org/assignments/media-types/media-types.xhtml.
+     * An IANA published [media type (MIME
+     * type)](https://www.iana.org/assignments/media-types/media-types.xhtml).
      * 

      *
      * string mime_type = 3;
@@ -40460,9 +68045,8 @@ public com.google.protobuf.ByteString getMimeTypeBytes() {
      *
      *
      * 
-     * An IANA published MIME type (also referred to as media type). For more
-     * information, see
-     * https://www.iana.org/assignments/media-types/media-types.xhtml.
+     * An IANA published [media type (MIME
+     * type)](https://www.iana.org/assignments/media-types/media-types.xhtml).
      * 

      *
      * string mime_type = 3;
@@ -40483,9 +68067,8 @@ public Builder setMimeType(java.lang.String value) {
      *
      *
      * 
-     * An IANA published MIME type (also referred to as media type). For more
-     * information, see
-     * https://www.iana.org/assignments/media-types/media-types.xhtml.
+     * An IANA published [media type (MIME
+     * type)](https://www.iana.org/assignments/media-types/media-types.xhtml).
      * 

      *
      * string mime_type = 3;
@@ -40502,9 +68085,8 @@ public Builder clearMimeType() {
      *
      *
      * 
-     * An IANA published MIME type (also referred to as media type). For more
-     * information, see
-     * https://www.iana.org/assignments/media-types/media-types.xhtml.
+     * An IANA published [media type (MIME
+     * type)](https://www.iana.org/assignments/media-types/media-types.xhtml).
      * 

      *
      * string mime_type = 3;
@@ -40528,10 +68110,10 @@ public Builder setMimeTypeBytes(com.google.protobuf.ByteString value) {
      *
      *
      * 
-     * UTF-8 encoded text in reading order from the document.
+     * Optional. UTF-8 encoded text in reading order from the document.
      * 

      *
-     * string text = 4;
+     * string text = 4 [(.google.api.field_behavior) = OPTIONAL];
      *
      * @return The text.
      */
@@ -40550,10 +68132,10 @@ public java.lang.String getText() {
      *
      *
      * 
-     * UTF-8 encoded text in reading order from the document.
+     * Optional. UTF-8 encoded text in reading order from the document.
      * 

      *
-     * string text = 4;
+     * string text = 4 [(.google.api.field_behavior) = OPTIONAL];
      *
      * @return The bytes for text.
      */
@@ -40572,10 +68154,10 @@ public com.google.protobuf.ByteString getTextBytes() {
      *
      *
      * 
-     * UTF-8 encoded text in reading order from the document.
+     * Optional. UTF-8 encoded text in reading order from the document.
      * 

      *
-     * string text = 4;
+     * string text = 4 [(.google.api.field_behavior) = OPTIONAL];
      *
      * @param value The text to set.
      * @return This builder for chaining.
@@ -40593,10 +68175,10 @@ public Builder setText(java.lang.String value) {
      *
      *
      * 
-     * UTF-8 encoded text in reading order from the document.
+     * Optional. UTF-8 encoded text in reading order from the document.
      * 

      *
-     * string text = 4;
+     * string text = 4 [(.google.api.field_behavior) = OPTIONAL];
      *
      * @return This builder for chaining.
      */
@@ -40610,10 +68192,10 @@ public Builder clearText() {
      *
      *
      * 
-     * UTF-8 encoded text in reading order from the document.
+     * Optional. UTF-8 encoded text in reading order from the document.
      * 

      *
-     * string text = 4;
+     * string text = 4 [(.google.api.field_behavior) = OPTIONAL];
      *
      * @param value The bytes for text to set.
      * @return This builder for chaining.
@@ -40651,11 +68233,15 @@ private void ensureTextStylesIsMutable() {
      *
      *
      * 
-     * Styles for the [Document.text][google.cloud.documentai.v1beta2.Document.text].
+     * Styles for the
+     * [Document.text][google.cloud.documentai.v1beta2.Document.text].
      * 

      *
-     * repeated .google.cloud.documentai.v1beta2.Document.Style text_styles = 5;
+     * 
+     * repeated .google.cloud.documentai.v1beta2.Document.Style text_styles = 5 [deprecated = true];
+     * 
      */
+    @java.lang.Deprecated
     public java.util.List getTextStylesList() {
       if (textStylesBuilder_ == null) {
         return java.util.Collections.unmodifiableList(textStyles_);
@@ -40667,11 +68253,15 @@ public java.util.List getTex
      *
      *
      * 
-     * Styles for the [Document.text][google.cloud.documentai.v1beta2.Document.text].
+     * Styles for the
+     * [Document.text][google.cloud.documentai.v1beta2.Document.text].
      * 

      *
-     * repeated .google.cloud.documentai.v1beta2.Document.Style text_styles = 5;
+     * 
+     * repeated .google.cloud.documentai.v1beta2.Document.Style text_styles = 5 [deprecated = true];
+     * 
      */
+    @java.lang.Deprecated
     public int getTextStylesCount() {
       if (textStylesBuilder_ == null) {
         return textStyles_.size();
@@ -40683,11 +68273,15 @@ public int getTextStylesCount() {
      *
      *
      * 
-     * Styles for the [Document.text][google.cloud.documentai.v1beta2.Document.text].
+     * Styles for the
+     * [Document.text][google.cloud.documentai.v1beta2.Document.text].
      * 

      *
-     * repeated .google.cloud.documentai.v1beta2.Document.Style text_styles = 5;
+     * 
+     * repeated .google.cloud.documentai.v1beta2.Document.Style text_styles = 5 [deprecated = true];
+     * 
      */
+    @java.lang.Deprecated
     public com.google.cloud.documentai.v1beta2.Document.Style getTextStyles(int index) {
       if (textStylesBuilder_ == null) {
         return textStyles_.get(index);
@@ -40699,11 +68293,15 @@ public com.google.cloud.documentai.v1beta2.Document.Style getTextStyles(int inde
      *
      *
      * 
-     * Styles for the [Document.text][google.cloud.documentai.v1beta2.Document.text].
+     * Styles for the
+     * [Document.text][google.cloud.documentai.v1beta2.Document.text].
      * 

      *
-     * repeated .google.cloud.documentai.v1beta2.Document.Style text_styles = 5;
+     * 
+     * repeated .google.cloud.documentai.v1beta2.Document.Style text_styles = 5 [deprecated = true];
+     * 
      */
+    @java.lang.Deprecated
     public Builder setTextStyles(
         int index, com.google.cloud.documentai.v1beta2.Document.Style value) {
       if (textStylesBuilder_ == null) {
@@ -40722,11 +68320,15 @@ public Builder setTextStyles(
      *
      *
      * 
-     * Styles for the [Document.text][google.cloud.documentai.v1beta2.Document.text].
+     * Styles for the
+     * [Document.text][google.cloud.documentai.v1beta2.Document.text].
      * 

      *
-     * repeated .google.cloud.documentai.v1beta2.Document.Style text_styles = 5;
+     * 
+     * repeated .google.cloud.documentai.v1beta2.Document.Style text_styles = 5 [deprecated = true];
+     * 
      */
+    @java.lang.Deprecated
     public Builder setTextStyles(
         int index, com.google.cloud.documentai.v1beta2.Document.Style.Builder builderForValue) {
       if (textStylesBuilder_ == null) {
@@ -40742,11 +68344,15 @@ public Builder setTextStyles(
      *
      *
      * 
-     * Styles for the [Document.text][google.cloud.documentai.v1beta2.Document.text].
+     * Styles for the
+     * [Document.text][google.cloud.documentai.v1beta2.Document.text].
      * 

      *
-     * repeated .google.cloud.documentai.v1beta2.Document.Style text_styles = 5;
+     * 
+     * repeated .google.cloud.documentai.v1beta2.Document.Style text_styles = 5 [deprecated = true];
+     * 
      */
+    @java.lang.Deprecated
     public Builder addTextStyles(com.google.cloud.documentai.v1beta2.Document.Style value) {
       if (textStylesBuilder_ == null) {
         if (value == null) {
@@ -40764,11 +68370,15 @@ public Builder addTextStyles(com.google.cloud.documentai.v1beta2.Document.Style
      *
      *
      * 
-     * Styles for the [Document.text][google.cloud.documentai.v1beta2.Document.text].
+     * Styles for the
+     * [Document.text][google.cloud.documentai.v1beta2.Document.text].
      * 

      *
-     * repeated .google.cloud.documentai.v1beta2.Document.Style text_styles = 5;
+     * 
+     * repeated .google.cloud.documentai.v1beta2.Document.Style text_styles = 5 [deprecated = true];
+     * 
      */
+    @java.lang.Deprecated
     public Builder addTextStyles(
         int index, com.google.cloud.documentai.v1beta2.Document.Style value) {
       if (textStylesBuilder_ == null) {
@@ -40787,11 +68397,15 @@ public Builder addTextStyles(
      *
      *
      * 
-     * Styles for the [Document.text][google.cloud.documentai.v1beta2.Document.text].
+     * Styles for the
+     * [Document.text][google.cloud.documentai.v1beta2.Document.text].
      * 

      *
-     * repeated .google.cloud.documentai.v1beta2.Document.Style text_styles = 5;
+     * 
+     * repeated .google.cloud.documentai.v1beta2.Document.Style text_styles = 5 [deprecated = true];
+     * 
      */
+    @java.lang.Deprecated
     public Builder addTextStyles(
         com.google.cloud.documentai.v1beta2.Document.Style.Builder builderForValue) {
       if (textStylesBuilder_ == null) {
@@ -40807,11 +68421,15 @@ public Builder addTextStyles(
      *
      *
      * 
-     * Styles for the [Document.text][google.cloud.documentai.v1beta2.Document.text].
+     * Styles for the
+     * [Document.text][google.cloud.documentai.v1beta2.Document.text].
      * 

      *
-     * repeated .google.cloud.documentai.v1beta2.Document.Style text_styles = 5;
+     * 
+     * repeated .google.cloud.documentai.v1beta2.Document.Style text_styles = 5 [deprecated = true];
+     * 
      */
+    @java.lang.Deprecated
     public Builder addTextStyles(
         int index, com.google.cloud.documentai.v1beta2.Document.Style.Builder builderForValue) {
       if (textStylesBuilder_ == null) {
@@ -40827,11 +68445,15 @@ public Builder addTextStyles(
      *
      *
      * 
-     * Styles for the [Document.text][google.cloud.documentai.v1beta2.Document.text].
+     * Styles for the
+     * [Document.text][google.cloud.documentai.v1beta2.Document.text].
      * 

      *
-     * repeated .google.cloud.documentai.v1beta2.Document.Style text_styles = 5;
+     * 
+     * repeated .google.cloud.documentai.v1beta2.Document.Style text_styles = 5 [deprecated = true];
+     * 
      */
+    @java.lang.Deprecated
     public Builder addAllTextStyles(
         java.lang.Iterable values) {
       if (textStylesBuilder_ == null) {
@@ -40847,11 +68469,15 @@ public Builder addAllTextStyles(
      *
      *
      * 
-     * Styles for the [Document.text][google.cloud.documentai.v1beta2.Document.text].
+     * Styles for the
+     * [Document.text][google.cloud.documentai.v1beta2.Document.text].
      * 

      *
-     * repeated .google.cloud.documentai.v1beta2.Document.Style text_styles = 5;
+     * 
+     * repeated .google.cloud.documentai.v1beta2.Document.Style text_styles = 5 [deprecated = true];
+     * 
      */
+    @java.lang.Deprecated
     public Builder clearTextStyles() {
       if (textStylesBuilder_ == null) {
         textStyles_ = java.util.Collections.emptyList();
@@ -40866,11 +68492,15 @@ public Builder clearTextStyles() {
      *
      *
      * 
-     * Styles for the [Document.text][google.cloud.documentai.v1beta2.Document.text].
+     * Styles for the
+     * [Document.text][google.cloud.documentai.v1beta2.Document.text].
      * 

      *
-     * repeated .google.cloud.documentai.v1beta2.Document.Style text_styles = 5;
+     * 
+     * repeated .google.cloud.documentai.v1beta2.Document.Style text_styles = 5 [deprecated = true];
+     * 
      */
+    @java.lang.Deprecated
     public Builder removeTextStyles(int index) {
       if (textStylesBuilder_ == null) {
         ensureTextStylesIsMutable();
@@ -40885,11 +68515,15 @@ public Builder removeTextStyles(int index) {
      *
      *
      * 
-     * Styles for the [Document.text][google.cloud.documentai.v1beta2.Document.text].
+     * Styles for the
+     * [Document.text][google.cloud.documentai.v1beta2.Document.text].
      * 

      *
-     * repeated .google.cloud.documentai.v1beta2.Document.Style text_styles = 5;
+     * 
+     * repeated .google.cloud.documentai.v1beta2.Document.Style text_styles = 5 [deprecated = true];
+     * 
      */
+    @java.lang.Deprecated
     public com.google.cloud.documentai.v1beta2.Document.Style.Builder getTextStylesBuilder(
         int index) {
       return getTextStylesFieldBuilder().getBuilder(index);
@@ -40898,11 +68532,15 @@ public com.google.cloud.documentai.v1beta2.Document.Style.Builder getTextStylesB
      *
      *
      * 
-     * Styles for the [Document.text][google.cloud.documentai.v1beta2.Document.text].
+     * Styles for the
+     * [Document.text][google.cloud.documentai.v1beta2.Document.text].
      * 

      *
-     * repeated .google.cloud.documentai.v1beta2.Document.Style text_styles = 5;
+     * 
+     * repeated .google.cloud.documentai.v1beta2.Document.Style text_styles = 5 [deprecated = true];
+     * 
      */
+    @java.lang.Deprecated
     public com.google.cloud.documentai.v1beta2.Document.StyleOrBuilder getTextStylesOrBuilder(
         int index) {
       if (textStylesBuilder_ == null) {
@@ -40915,11 +68553,15 @@ public com.google.cloud.documentai.v1beta2.Document.StyleOrBuilder getTextStyles
      *
      *
      * 
-     * Styles for the [Document.text][google.cloud.documentai.v1beta2.Document.text].
+     * Styles for the
+     * [Document.text][google.cloud.documentai.v1beta2.Document.text].
      * 

      *
-     * repeated .google.cloud.documentai.v1beta2.Document.Style text_styles = 5;
+     * 
+     * repeated .google.cloud.documentai.v1beta2.Document.Style text_styles = 5 [deprecated = true];
+     * 
      */
+    @java.lang.Deprecated
     public java.util.List
         getTextStylesOrBuilderList() {
       if (textStylesBuilder_ != null) {
@@ -40932,11 +68574,15 @@ public com.google.cloud.documentai.v1beta2.Document.StyleOrBuilder getTextStyles
      *
      *
      * 
-     * Styles for the [Document.text][google.cloud.documentai.v1beta2.Document.text].
+     * Styles for the
+     * [Document.text][google.cloud.documentai.v1beta2.Document.text].
      * 

      *
-     * repeated .google.cloud.documentai.v1beta2.Document.Style text_styles = 5;
+     * 
+     * repeated .google.cloud.documentai.v1beta2.Document.Style text_styles = 5 [deprecated = true];
+     * 
      */
+    @java.lang.Deprecated
     public com.google.cloud.documentai.v1beta2.Document.Style.Builder addTextStylesBuilder() {
       return getTextStylesFieldBuilder()
           .addBuilder(com.google.cloud.documentai.v1beta2.Document.Style.getDefaultInstance());
@@ -40945,11 +68591,15 @@ public com.google.cloud.documentai.v1beta2.Document.Style.Builder addTextStylesB
      *
      *
      * 
-     * Styles for the [Document.text][google.cloud.documentai.v1beta2.Document.text].
+     * Styles for the
+     * [Document.text][google.cloud.documentai.v1beta2.Document.text].
      * 

      *
-     * repeated .google.cloud.documentai.v1beta2.Document.Style text_styles = 5;
+     * 
+     * repeated .google.cloud.documentai.v1beta2.Document.Style text_styles = 5 [deprecated = true];
+     * 
      */
+    @java.lang.Deprecated
     public com.google.cloud.documentai.v1beta2.Document.Style.Builder addTextStylesBuilder(
         int index) {
       return getTextStylesFieldBuilder()
@@ -40960,11 +68610,15 @@ public com.google.cloud.documentai.v1beta2.Document.Style.Builder addTextStylesB
      *
      *
      * 
-     * Styles for the [Document.text][google.cloud.documentai.v1beta2.Document.text].
+     * Styles for the
+     * [Document.text][google.cloud.documentai.v1beta2.Document.text].
      * 

      *
-     * repeated .google.cloud.documentai.v1beta2.Document.Style text_styles = 5;
+     * 
+     * repeated .google.cloud.documentai.v1beta2.Document.Style text_styles = 5 [deprecated = true];
+     * 
      */
+    @java.lang.Deprecated
     public java.util.List
         getTextStylesBuilderList() {
       return getTextStylesFieldBuilder().getBuilderList();
@@ -41007,7 +68661,8 @@ private void ensurePagesIsMutable() {
      *
      *
      * 
-     * Visual page layout for the [Document][google.cloud.documentai.v1beta2.Document].
+     * Visual page layout for the
+     * [Document][google.cloud.documentai.v1beta2.Document].
      * 

      *
      * repeated .google.cloud.documentai.v1beta2.Document.Page pages = 6;
@@ -41023,7 +68678,8 @@ public java.util.List getPage
      *
      *
      * 
-     * Visual page layout for the [Document][google.cloud.documentai.v1beta2.Document].
+     * Visual page layout for the
+     * [Document][google.cloud.documentai.v1beta2.Document].
      * 

      *
      * repeated .google.cloud.documentai.v1beta2.Document.Page pages = 6;
@@ -41039,7 +68695,8 @@ public int getPagesCount() {
      *
      *
      * 
-     * Visual page layout for the [Document][google.cloud.documentai.v1beta2.Document].
+     * Visual page layout for the
+     * [Document][google.cloud.documentai.v1beta2.Document].
      * 

      *
      * repeated .google.cloud.documentai.v1beta2.Document.Page pages = 6;
@@ -41055,7 +68712,8 @@ public com.google.cloud.documentai.v1beta2.Document.Page getPages(int index) {
      *
      *
      * 
-     * Visual page layout for the [Document][google.cloud.documentai.v1beta2.Document].
+     * Visual page layout for the
+     * [Document][google.cloud.documentai.v1beta2.Document].
      * 

      *
      * repeated .google.cloud.documentai.v1beta2.Document.Page pages = 6;
@@ -41077,7 +68735,8 @@ public Builder setPages(int index, com.google.cloud.documentai.v1beta2.Document.
      *
      *
      * 
-     * Visual page layout for the [Document][google.cloud.documentai.v1beta2.Document].
+     * Visual page layout for the
+     * [Document][google.cloud.documentai.v1beta2.Document].
      * 

      *
      * repeated .google.cloud.documentai.v1beta2.Document.Page pages = 6;
@@ -41097,7 +68756,8 @@ public Builder setPages(
      *
      *
      * 
-     * Visual page layout for the [Document][google.cloud.documentai.v1beta2.Document].
+     * Visual page layout for the
+     * [Document][google.cloud.documentai.v1beta2.Document].
      * 

      *
      * repeated .google.cloud.documentai.v1beta2.Document.Page pages = 6;
@@ -41119,7 +68779,8 @@ public Builder addPages(com.google.cloud.documentai.v1beta2.Document.Page value)
      *
      *
      * 
-     * Visual page layout for the [Document][google.cloud.documentai.v1beta2.Document].
+     * Visual page layout for the
+     * [Document][google.cloud.documentai.v1beta2.Document].
      * 

      *
      * repeated .google.cloud.documentai.v1beta2.Document.Page pages = 6;
@@ -41141,7 +68802,8 @@ public Builder addPages(int index, com.google.cloud.documentai.v1beta2.Document.
      *
      *
      * 
-     * Visual page layout for the [Document][google.cloud.documentai.v1beta2.Document].
+     * Visual page layout for the
+     * [Document][google.cloud.documentai.v1beta2.Document].
      * 

      *
      * repeated .google.cloud.documentai.v1beta2.Document.Page pages = 6;
@@ -41161,7 +68823,8 @@ public Builder addPages(
      *
      *
      * 
-     * Visual page layout for the [Document][google.cloud.documentai.v1beta2.Document].
+     * Visual page layout for the
+     * [Document][google.cloud.documentai.v1beta2.Document].
      * 

      *
      * repeated .google.cloud.documentai.v1beta2.Document.Page pages = 6;
@@ -41181,7 +68844,8 @@ public Builder addPages(
      *
      *
      * 
-     * Visual page layout for the [Document][google.cloud.documentai.v1beta2.Document].
+     * Visual page layout for the
+     * [Document][google.cloud.documentai.v1beta2.Document].
      * 

      *
      * repeated .google.cloud.documentai.v1beta2.Document.Page pages = 6;
@@ -41201,7 +68865,8 @@ public Builder addAllPages(
      *
      *
      * 
-     * Visual page layout for the [Document][google.cloud.documentai.v1beta2.Document].
+     * Visual page layout for the
+     * [Document][google.cloud.documentai.v1beta2.Document].
      * 

      *
      * repeated .google.cloud.documentai.v1beta2.Document.Page pages = 6;
@@ -41220,7 +68885,8 @@ public Builder clearPages() {
      *
      *
      * 
-     * Visual page layout for the [Document][google.cloud.documentai.v1beta2.Document].
+     * Visual page layout for the
+     * [Document][google.cloud.documentai.v1beta2.Document].
      * 

      *
      * repeated .google.cloud.documentai.v1beta2.Document.Page pages = 6;
@@ -41239,7 +68905,8 @@ public Builder removePages(int index) {
      *
      *
      * 
-     * Visual page layout for the [Document][google.cloud.documentai.v1beta2.Document].
+     * Visual page layout for the
+     * [Document][google.cloud.documentai.v1beta2.Document].
      * 

      *
      * repeated .google.cloud.documentai.v1beta2.Document.Page pages = 6;
@@ -41251,7 +68918,8 @@ public com.google.cloud.documentai.v1beta2.Document.Page.Builder getPagesBuilder
      *
      *
      * 
-     * Visual page layout for the [Document][google.cloud.documentai.v1beta2.Document].
+     * Visual page layout for the
+     * [Document][google.cloud.documentai.v1beta2.Document].
      * 

      *
      * repeated .google.cloud.documentai.v1beta2.Document.Page pages = 6;
@@ -41267,7 +68935,8 @@ public com.google.cloud.documentai.v1beta2.Document.PageOrBuilder getPagesOrBuil
      *
      *
      * 
-     * Visual page layout for the [Document][google.cloud.documentai.v1beta2.Document].
+     * Visual page layout for the
+     * [Document][google.cloud.documentai.v1beta2.Document].
      * 

      *
      * repeated .google.cloud.documentai.v1beta2.Document.Page pages = 6;
@@ -41284,7 +68953,8 @@ public com.google.cloud.documentai.v1beta2.Document.PageOrBuilder getPagesOrBuil
      *
      *
      * 
-     * Visual page layout for the [Document][google.cloud.documentai.v1beta2.Document].
+     * Visual page layout for the
+     * [Document][google.cloud.documentai.v1beta2.Document].
      * 

      *
      * repeated .google.cloud.documentai.v1beta2.Document.Page pages = 6;
@@ -41297,7 +68967,8 @@ public com.google.cloud.documentai.v1beta2.Document.Page.Builder addPagesBuilder
      *
      *
      * 
-     * Visual page layout for the [Document][google.cloud.documentai.v1beta2.Document].
+     * Visual page layout for the
+     * [Document][google.cloud.documentai.v1beta2.Document].
      * 

      *
      * repeated .google.cloud.documentai.v1beta2.Document.Page pages = 6;
@@ -41311,7 +68982,8 @@ public com.google.cloud.documentai.v1beta2.Document.Page.Builder addPagesBuilder
      *
      *
      * 
-     * Visual page layout for the [Document][google.cloud.documentai.v1beta2.Document].
+     * Visual page layout for the
+     * [Document][google.cloud.documentai.v1beta2.Document].
      * 

      *
      * repeated .google.cloud.documentai.v1beta2.Document.Page pages = 6;
@@ -41359,8 +69031,9 @@ private void ensureEntitiesIsMutable() {
      *
      *
      * 
-     * A list of entities detected on [Document.text][google.cloud.documentai.v1beta2.Document.text]. For document shards,
-     * entities in this list may cross shard boundaries.
+     * A list of entities detected on
+     * [Document.text][google.cloud.documentai.v1beta2.Document.text]. For
+     * document shards, entities in this list may cross shard boundaries.
      * 

      *
      * repeated .google.cloud.documentai.v1beta2.Document.Entity entities = 7;
@@ -41376,8 +69049,9 @@ public java.util.List getEn
      *
      *
      * 
-     * A list of entities detected on [Document.text][google.cloud.documentai.v1beta2.Document.text]. For document shards,
-     * entities in this list may cross shard boundaries.
+     * A list of entities detected on
+     * [Document.text][google.cloud.documentai.v1beta2.Document.text]. For
+     * document shards, entities in this list may cross shard boundaries.
      * 

      *
      * repeated .google.cloud.documentai.v1beta2.Document.Entity entities = 7;
@@ -41393,8 +69067,9 @@ public int getEntitiesCount() {
      *
      *
      * 
-     * A list of entities detected on [Document.text][google.cloud.documentai.v1beta2.Document.text]. For document shards,
-     * entities in this list may cross shard boundaries.
+     * A list of entities detected on
+     * [Document.text][google.cloud.documentai.v1beta2.Document.text]. For
+     * document shards, entities in this list may cross shard boundaries.
      * 

      *
      * repeated .google.cloud.documentai.v1beta2.Document.Entity entities = 7;
@@ -41410,8 +69085,9 @@ public com.google.cloud.documentai.v1beta2.Document.Entity getEntities(int index
      *
      *
      * 
-     * A list of entities detected on [Document.text][google.cloud.documentai.v1beta2.Document.text]. For document shards,
-     * entities in this list may cross shard boundaries.
+     * A list of entities detected on
+     * [Document.text][google.cloud.documentai.v1beta2.Document.text]. For
+     * document shards, entities in this list may cross shard boundaries.
      * 

      *
      * repeated .google.cloud.documentai.v1beta2.Document.Entity entities = 7;
@@ -41434,8 +69110,9 @@ public Builder setEntities(
      *
      *
      * 
-     * A list of entities detected on [Document.text][google.cloud.documentai.v1beta2.Document.text]. For document shards,
-     * entities in this list may cross shard boundaries.
+     * A list of entities detected on
+     * [Document.text][google.cloud.documentai.v1beta2.Document.text]. For
+     * document shards, entities in this list may cross shard boundaries.
      * 

      *
      * repeated .google.cloud.documentai.v1beta2.Document.Entity entities = 7;
@@ -41455,8 +69132,9 @@ public Builder setEntities(
      *
      *
      * 
-     * A list of entities detected on [Document.text][google.cloud.documentai.v1beta2.Document.text]. For document shards,
-     * entities in this list may cross shard boundaries.
+     * A list of entities detected on
+     * [Document.text][google.cloud.documentai.v1beta2.Document.text]. For
+     * document shards, entities in this list may cross shard boundaries.
      * 

      *
      * repeated .google.cloud.documentai.v1beta2.Document.Entity entities = 7;
@@ -41478,8 +69156,9 @@ public Builder addEntities(com.google.cloud.documentai.v1beta2.Document.Entity v
      *
      *
      * 
-     * A list of entities detected on [Document.text][google.cloud.documentai.v1beta2.Document.text]. For document shards,
-     * entities in this list may cross shard boundaries.
+     * A list of entities detected on
+     * [Document.text][google.cloud.documentai.v1beta2.Document.text]. For
+     * document shards, entities in this list may cross shard boundaries.
      * 

      *
      * repeated .google.cloud.documentai.v1beta2.Document.Entity entities = 7;
@@ -41502,8 +69181,9 @@ public Builder addEntities(
      *
      *
      * 
-     * A list of entities detected on [Document.text][google.cloud.documentai.v1beta2.Document.text]. For document shards,
-     * entities in this list may cross shard boundaries.
+     * A list of entities detected on
+     * [Document.text][google.cloud.documentai.v1beta2.Document.text]. For
+     * document shards, entities in this list may cross shard boundaries.
      * 

      *
      * repeated .google.cloud.documentai.v1beta2.Document.Entity entities = 7;
@@ -41523,8 +69203,9 @@ public Builder addEntities(
      *
      *
      * 
-     * A list of entities detected on [Document.text][google.cloud.documentai.v1beta2.Document.text]. For document shards,
-     * entities in this list may cross shard boundaries.
+     * A list of entities detected on
+     * [Document.text][google.cloud.documentai.v1beta2.Document.text]. For
+     * document shards, entities in this list may cross shard boundaries.
      * 

      *
      * repeated .google.cloud.documentai.v1beta2.Document.Entity entities = 7;
@@ -41544,8 +69225,9 @@ public Builder addEntities(
      *
      *
      * 
-     * A list of entities detected on [Document.text][google.cloud.documentai.v1beta2.Document.text]. For document shards,
-     * entities in this list may cross shard boundaries.
+     * A list of entities detected on
+     * [Document.text][google.cloud.documentai.v1beta2.Document.text]. For
+     * document shards, entities in this list may cross shard boundaries.
      * 

      *
      * repeated .google.cloud.documentai.v1beta2.Document.Entity entities = 7;
@@ -41565,8 +69247,9 @@ public Builder addAllEntities(
      *
      *
      * 
-     * A list of entities detected on [Document.text][google.cloud.documentai.v1beta2.Document.text]. For document shards,
-     * entities in this list may cross shard boundaries.
+     * A list of entities detected on
+     * [Document.text][google.cloud.documentai.v1beta2.Document.text]. For
+     * document shards, entities in this list may cross shard boundaries.
      * 

      *
      * repeated .google.cloud.documentai.v1beta2.Document.Entity entities = 7;
@@ -41585,8 +69268,9 @@ public Builder clearEntities() {
      *
      *
      * 
-     * A list of entities detected on [Document.text][google.cloud.documentai.v1beta2.Document.text]. For document shards,
-     * entities in this list may cross shard boundaries.
+     * A list of entities detected on
+     * [Document.text][google.cloud.documentai.v1beta2.Document.text]. For
+     * document shards, entities in this list may cross shard boundaries.
      * 

      *
      * repeated .google.cloud.documentai.v1beta2.Document.Entity entities = 7;
@@ -41605,8 +69289,9 @@ public Builder removeEntities(int index) {
      *
      *
      * 
-     * A list of entities detected on [Document.text][google.cloud.documentai.v1beta2.Document.text]. For document shards,
-     * entities in this list may cross shard boundaries.
+     * A list of entities detected on
+     * [Document.text][google.cloud.documentai.v1beta2.Document.text]. For
+     * document shards, entities in this list may cross shard boundaries.
      * 

      *
      * repeated .google.cloud.documentai.v1beta2.Document.Entity entities = 7;
@@ -41619,8 +69304,9 @@ public com.google.cloud.documentai.v1beta2.Document.Entity.Builder getEntitiesBu
      *
      *
      * 
-     * A list of entities detected on [Document.text][google.cloud.documentai.v1beta2.Document.text]. For document shards,
-     * entities in this list may cross shard boundaries.
+     * A list of entities detected on
+     * [Document.text][google.cloud.documentai.v1beta2.Document.text]. For
+     * document shards, entities in this list may cross shard boundaries.
      * 

      *
      * repeated .google.cloud.documentai.v1beta2.Document.Entity entities = 7;
@@ -41637,8 +69323,9 @@ public com.google.cloud.documentai.v1beta2.Document.EntityOrBuilder getEntitiesO
      *
      *
      * 
-     * A list of entities detected on [Document.text][google.cloud.documentai.v1beta2.Document.text]. For document shards,
-     * entities in this list may cross shard boundaries.
+     * A list of entities detected on
+     * [Document.text][google.cloud.documentai.v1beta2.Document.text]. For
+     * document shards, entities in this list may cross shard boundaries.
      * 

      *
      * repeated .google.cloud.documentai.v1beta2.Document.Entity entities = 7;
@@ -41655,8 +69342,9 @@ public com.google.cloud.documentai.v1beta2.Document.EntityOrBuilder getEntitiesO
      *
      *
      * 
-     * A list of entities detected on [Document.text][google.cloud.documentai.v1beta2.Document.text]. For document shards,
-     * entities in this list may cross shard boundaries.
+     * A list of entities detected on
+     * [Document.text][google.cloud.documentai.v1beta2.Document.text]. For
+     * document shards, entities in this list may cross shard boundaries.
      * 

      *
      * repeated .google.cloud.documentai.v1beta2.Document.Entity entities = 7;
@@ -41669,8 +69357,9 @@ public com.google.cloud.documentai.v1beta2.Document.Entity.Builder addEntitiesBu
      *
      *
      * 
-     * A list of entities detected on [Document.text][google.cloud.documentai.v1beta2.Document.text]. For document shards,
-     * entities in this list may cross shard boundaries.
+     * A list of entities detected on
+     * [Document.text][google.cloud.documentai.v1beta2.Document.text]. For
+     * document shards, entities in this list may cross shard boundaries.
      * 

      *
      * repeated .google.cloud.documentai.v1beta2.Document.Entity entities = 7;
@@ -41685,8 +69374,9 @@ public com.google.cloud.documentai.v1beta2.Document.Entity.Builder addEntitiesBu
      *
      *
      * 
-     * A list of entities detected on [Document.text][google.cloud.documentai.v1beta2.Document.text]. For document shards,
-     * entities in this list may cross shard boundaries.
+     * A list of entities detected on
+     * [Document.text][google.cloud.documentai.v1beta2.Document.text]. For
+     * document shards, entities in this list may cross shard boundaries.
      * 

      *
      * repeated .google.cloud.documentai.v1beta2.Document.Entity entities = 7;
@@ -41735,7 +69425,8 @@ private void ensureEntityRelationsIsMutable() {
      *
      *
      * 
-     * Relationship among [Document.entities][google.cloud.documentai.v1beta2.Document.entities].
+     * Placeholder.  Relationship among
+     * [Document.entities][google.cloud.documentai.v1beta2.Document.entities].
      * 

      *
      * repeated .google.cloud.documentai.v1beta2.Document.EntityRelation entity_relations = 8;
@@ -41753,7 +69444,8 @@ private void ensureEntityRelationsIsMutable() {
      *
      *
      * 
-     * Relationship among [Document.entities][google.cloud.documentai.v1beta2.Document.entities].
+     * Placeholder.  Relationship among
+     * [Document.entities][google.cloud.documentai.v1beta2.Document.entities].
      * 

      *
      * repeated .google.cloud.documentai.v1beta2.Document.EntityRelation entity_relations = 8;
@@ -41770,7 +69462,8 @@ public int getEntityRelationsCount() {
      *
      *
      * 
-     * Relationship among [Document.entities][google.cloud.documentai.v1beta2.Document.entities].
+     * Placeholder.  Relationship among
+     * [Document.entities][google.cloud.documentai.v1beta2.Document.entities].
      * 

      *
      * repeated .google.cloud.documentai.v1beta2.Document.EntityRelation entity_relations = 8;
@@ -41788,7 +69481,8 @@ public com.google.cloud.documentai.v1beta2.Document.EntityRelation getEntityRela
      *
      *
      * 
-     * Relationship among [Document.entities][google.cloud.documentai.v1beta2.Document.entities].
+     * Placeholder.  Relationship among
+     * [Document.entities][google.cloud.documentai.v1beta2.Document.entities].
      * 

      *
      * repeated .google.cloud.documentai.v1beta2.Document.EntityRelation entity_relations = 8;
@@ -41812,7 +69506,8 @@ public Builder setEntityRelations(
      *
      *
      * 
-     * Relationship among [Document.entities][google.cloud.documentai.v1beta2.Document.entities].
+     * Placeholder.  Relationship among
+     * [Document.entities][google.cloud.documentai.v1beta2.Document.entities].
      * 

      *
      * repeated .google.cloud.documentai.v1beta2.Document.EntityRelation entity_relations = 8;
@@ -41834,7 +69529,8 @@ public Builder setEntityRelations(
      *
      *
      * 
-     * Relationship among [Document.entities][google.cloud.documentai.v1beta2.Document.entities].
+     * Placeholder.  Relationship among
+     * [Document.entities][google.cloud.documentai.v1beta2.Document.entities].
      * 

      *
      * repeated .google.cloud.documentai.v1beta2.Document.EntityRelation entity_relations = 8;
@@ -41858,7 +69554,8 @@ public Builder addEntityRelations(
      *
      *
      * 
-     * Relationship among [Document.entities][google.cloud.documentai.v1beta2.Document.entities].
+     * Placeholder.  Relationship among
+     * [Document.entities][google.cloud.documentai.v1beta2.Document.entities].
      * 

      *
      * repeated .google.cloud.documentai.v1beta2.Document.EntityRelation entity_relations = 8;
@@ -41882,7 +69579,8 @@ public Builder addEntityRelations(
      *
      *
      * 
-     * Relationship among [Document.entities][google.cloud.documentai.v1beta2.Document.entities].
+     * Placeholder.  Relationship among
+     * [Document.entities][google.cloud.documentai.v1beta2.Document.entities].
      * 

      *
      * repeated .google.cloud.documentai.v1beta2.Document.EntityRelation entity_relations = 8;
@@ -41903,7 +69601,8 @@ public Builder addEntityRelations(
      *
      *
      * 
-     * Relationship among [Document.entities][google.cloud.documentai.v1beta2.Document.entities].
+     * Placeholder.  Relationship among
+     * [Document.entities][google.cloud.documentai.v1beta2.Document.entities].
      * 

      *
      * repeated .google.cloud.documentai.v1beta2.Document.EntityRelation entity_relations = 8;
@@ -41925,7 +69624,8 @@ public Builder addEntityRelations(
      *
      *
      * 
-     * Relationship among [Document.entities][google.cloud.documentai.v1beta2.Document.entities].
+     * Placeholder.  Relationship among
+     * [Document.entities][google.cloud.documentai.v1beta2.Document.entities].
      * 

      *
      * repeated .google.cloud.documentai.v1beta2.Document.EntityRelation entity_relations = 8;
@@ -41947,7 +69647,8 @@ public Builder addAllEntityRelations(
      *
      *
      * 
-     * Relationship among [Document.entities][google.cloud.documentai.v1beta2.Document.entities].
+     * Placeholder.  Relationship among
+     * [Document.entities][google.cloud.documentai.v1beta2.Document.entities].
      * 

      *
      * repeated .google.cloud.documentai.v1beta2.Document.EntityRelation entity_relations = 8;
@@ -41967,7 +69668,8 @@ public Builder clearEntityRelations() {
      *
      *
      * 
-     * Relationship among [Document.entities][google.cloud.documentai.v1beta2.Document.entities].
+     * Placeholder.  Relationship among
+     * [Document.entities][google.cloud.documentai.v1beta2.Document.entities].
      * 

      *
      * repeated .google.cloud.documentai.v1beta2.Document.EntityRelation entity_relations = 8;
@@ -41987,7 +69689,8 @@ public Builder removeEntityRelations(int index) {
      *
      *
      * 
-     * Relationship among [Document.entities][google.cloud.documentai.v1beta2.Document.entities].
+     * Placeholder.  Relationship among
+     * [Document.entities][google.cloud.documentai.v1beta2.Document.entities].
      * 

      *
      * repeated .google.cloud.documentai.v1beta2.Document.EntityRelation entity_relations = 8;
@@ -42001,7 +69704,8 @@ public Builder removeEntityRelations(int index) {
      *
      *
      * 
-     * Relationship among [Document.entities][google.cloud.documentai.v1beta2.Document.entities].
+     * Placeholder.  Relationship among
+     * [Document.entities][google.cloud.documentai.v1beta2.Document.entities].
      * 

      *
      * repeated .google.cloud.documentai.v1beta2.Document.EntityRelation entity_relations = 8;
@@ -42019,7 +69723,8 @@ public Builder removeEntityRelations(int index) {
      *
      *
      * 
-     * Relationship among [Document.entities][google.cloud.documentai.v1beta2.Document.entities].
+     * Placeholder.  Relationship among
+     * [Document.entities][google.cloud.documentai.v1beta2.Document.entities].
      * 

      *
      * repeated .google.cloud.documentai.v1beta2.Document.EntityRelation entity_relations = 8;
@@ -42038,7 +69743,8 @@ public Builder removeEntityRelations(int index) {
      *
      *
      * 
-     * Relationship among [Document.entities][google.cloud.documentai.v1beta2.Document.entities].
+     * Placeholder.  Relationship among
+     * [Document.entities][google.cloud.documentai.v1beta2.Document.entities].
      * 

      *
      * repeated .google.cloud.documentai.v1beta2.Document.EntityRelation entity_relations = 8;
@@ -42054,7 +69760,8 @@ public Builder removeEntityRelations(int index) {
      *
      *
      * 
-     * Relationship among [Document.entities][google.cloud.documentai.v1beta2.Document.entities].
+     * Placeholder.  Relationship among
+     * [Document.entities][google.cloud.documentai.v1beta2.Document.entities].
      * 

      *
      * repeated .google.cloud.documentai.v1beta2.Document.EntityRelation entity_relations = 8;
@@ -42071,7 +69778,8 @@ public Builder removeEntityRelations(int index) {
      *
      *
      * 
-     * Relationship among [Document.entities][google.cloud.documentai.v1beta2.Document.entities].
+     * Placeholder.  Relationship among
+     * [Document.entities][google.cloud.documentai.v1beta2.Document.entities].
      * 

      *
      * repeated .google.cloud.documentai.v1beta2.Document.EntityRelation entity_relations = 8;
@@ -42102,6 +69810,423 @@ public Builder removeEntityRelations(int index) {
       return entityRelationsBuilder_;
     }
 
+    private java.util.List textChanges_ =
+        java.util.Collections.emptyList();
+
+    private void ensureTextChangesIsMutable() {
+      if (!((bitField0_ & 0x00000100) != 0)) {
+        textChanges_ =
+            new java.util.ArrayList(
+                textChanges_);
+        bitField0_ |= 0x00000100;
+      }
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.documentai.v1beta2.Document.TextChange,
+            com.google.cloud.documentai.v1beta2.Document.TextChange.Builder,
+            com.google.cloud.documentai.v1beta2.Document.TextChangeOrBuilder>
+        textChangesBuilder_;
+
+    /**
+     *
+     *
+     * 
+     * Placeholder.  A list of text corrections made to
+     * [Document.text][google.cloud.documentai.v1beta2.Document.text].  This is
+     * usually used for annotating corrections to OCR mistakes.  Text changes for
+     * a given revision may not overlap with each other.
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.TextChange text_changes = 14;
+     */
+    public java.util.List
+        getTextChangesList() {
+      if (textChangesBuilder_ == null) {
+        return java.util.Collections.unmodifiableList(textChanges_);
+      } else {
+        return textChangesBuilder_.getMessageList();
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Placeholder.  A list of text corrections made to
+     * [Document.text][google.cloud.documentai.v1beta2.Document.text].  This is
+     * usually used for annotating corrections to OCR mistakes.  Text changes for
+     * a given revision may not overlap with each other.
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.TextChange text_changes = 14;
+     */
+    public int getTextChangesCount() {
+      if (textChangesBuilder_ == null) {
+        return textChanges_.size();
+      } else {
+        return textChangesBuilder_.getCount();
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Placeholder.  A list of text corrections made to
+     * [Document.text][google.cloud.documentai.v1beta2.Document.text].  This is
+     * usually used for annotating corrections to OCR mistakes.  Text changes for
+     * a given revision may not overlap with each other.
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.TextChange text_changes = 14;
+     */
+    public com.google.cloud.documentai.v1beta2.Document.TextChange getTextChanges(int index) {
+      if (textChangesBuilder_ == null) {
+        return textChanges_.get(index);
+      } else {
+        return textChangesBuilder_.getMessage(index);
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Placeholder.  A list of text corrections made to
+     * [Document.text][google.cloud.documentai.v1beta2.Document.text].  This is
+     * usually used for annotating corrections to OCR mistakes.  Text changes for
+     * a given revision may not overlap with each other.
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.TextChange text_changes = 14;
+     */
+    public Builder setTextChanges(
+        int index, com.google.cloud.documentai.v1beta2.Document.TextChange value) {
+      if (textChangesBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureTextChangesIsMutable();
+        textChanges_.set(index, value);
+        onChanged();
+      } else {
+        textChangesBuilder_.setMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Placeholder.  A list of text corrections made to
+     * [Document.text][google.cloud.documentai.v1beta2.Document.text].  This is
+     * usually used for annotating corrections to OCR mistakes.  Text changes for
+     * a given revision may not overlap with each other.
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.TextChange text_changes = 14;
+     */
+    public Builder setTextChanges(
+        int index,
+        com.google.cloud.documentai.v1beta2.Document.TextChange.Builder builderForValue) {
+      if (textChangesBuilder_ == null) {
+        ensureTextChangesIsMutable();
+        textChanges_.set(index, builderForValue.build());
+        onChanged();
+      } else {
+        textChangesBuilder_.setMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Placeholder.  A list of text corrections made to
+     * [Document.text][google.cloud.documentai.v1beta2.Document.text].  This is
+     * usually used for annotating corrections to OCR mistakes.  Text changes for
+     * a given revision may not overlap with each other.
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.TextChange text_changes = 14;
+     */
+    public Builder addTextChanges(com.google.cloud.documentai.v1beta2.Document.TextChange value) {
+      if (textChangesBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureTextChangesIsMutable();
+        textChanges_.add(value);
+        onChanged();
+      } else {
+        textChangesBuilder_.addMessage(value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Placeholder.  A list of text corrections made to
+     * [Document.text][google.cloud.documentai.v1beta2.Document.text].  This is
+     * usually used for annotating corrections to OCR mistakes.  Text changes for
+     * a given revision may not overlap with each other.
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.TextChange text_changes = 14;
+     */
+    public Builder addTextChanges(
+        int index, com.google.cloud.documentai.v1beta2.Document.TextChange value) {
+      if (textChangesBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureTextChangesIsMutable();
+        textChanges_.add(index, value);
+        onChanged();
+      } else {
+        textChangesBuilder_.addMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Placeholder.  A list of text corrections made to
+     * [Document.text][google.cloud.documentai.v1beta2.Document.text].  This is
+     * usually used for annotating corrections to OCR mistakes.  Text changes for
+     * a given revision may not overlap with each other.
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.TextChange text_changes = 14;
+     */
+    public Builder addTextChanges(
+        com.google.cloud.documentai.v1beta2.Document.TextChange.Builder builderForValue) {
+      if (textChangesBuilder_ == null) {
+        ensureTextChangesIsMutable();
+        textChanges_.add(builderForValue.build());
+        onChanged();
+      } else {
+        textChangesBuilder_.addMessage(builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Placeholder.  A list of text corrections made to
+     * [Document.text][google.cloud.documentai.v1beta2.Document.text].  This is
+     * usually used for annotating corrections to OCR mistakes.  Text changes for
+     * a given revision may not overlap with each other.
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.TextChange text_changes = 14;
+     */
+    public Builder addTextChanges(
+        int index,
+        com.google.cloud.documentai.v1beta2.Document.TextChange.Builder builderForValue) {
+      if (textChangesBuilder_ == null) {
+        ensureTextChangesIsMutable();
+        textChanges_.add(index, builderForValue.build());
+        onChanged();
+      } else {
+        textChangesBuilder_.addMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Placeholder.  A list of text corrections made to
+     * [Document.text][google.cloud.documentai.v1beta2.Document.text].  This is
+     * usually used for annotating corrections to OCR mistakes.  Text changes for
+     * a given revision may not overlap with each other.
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.TextChange text_changes = 14;
+     */
+    public Builder addAllTextChanges(
+        java.lang.Iterable
+            values) {
+      if (textChangesBuilder_ == null) {
+        ensureTextChangesIsMutable();
+        com.google.protobuf.AbstractMessageLite.Builder.addAll(values, textChanges_);
+        onChanged();
+      } else {
+        textChangesBuilder_.addAllMessages(values);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Placeholder.  A list of text corrections made to
+     * [Document.text][google.cloud.documentai.v1beta2.Document.text].  This is
+     * usually used for annotating corrections to OCR mistakes.  Text changes for
+     * a given revision may not overlap with each other.
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.TextChange text_changes = 14;
+     */
+    public Builder clearTextChanges() {
+      if (textChangesBuilder_ == null) {
+        textChanges_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000100);
+        onChanged();
+      } else {
+        textChangesBuilder_.clear();
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Placeholder.  A list of text corrections made to
+     * [Document.text][google.cloud.documentai.v1beta2.Document.text].  This is
+     * usually used for annotating corrections to OCR mistakes.  Text changes for
+     * a given revision may not overlap with each other.
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.TextChange text_changes = 14;
+     */
+    public Builder removeTextChanges(int index) {
+      if (textChangesBuilder_ == null) {
+        ensureTextChangesIsMutable();
+        textChanges_.remove(index);
+        onChanged();
+      } else {
+        textChangesBuilder_.remove(index);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Placeholder.  A list of text corrections made to
+     * [Document.text][google.cloud.documentai.v1beta2.Document.text].  This is
+     * usually used for annotating corrections to OCR mistakes.  Text changes for
+     * a given revision may not overlap with each other.
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.TextChange text_changes = 14;
+     */
+    public com.google.cloud.documentai.v1beta2.Document.TextChange.Builder getTextChangesBuilder(
+        int index) {
+      return getTextChangesFieldBuilder().getBuilder(index);
+    }
+    /**
+     *
+     *
+     * 
+     * Placeholder.  A list of text corrections made to
+     * [Document.text][google.cloud.documentai.v1beta2.Document.text].  This is
+     * usually used for annotating corrections to OCR mistakes.  Text changes for
+     * a given revision may not overlap with each other.
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.TextChange text_changes = 14;
+     */
+    public com.google.cloud.documentai.v1beta2.Document.TextChangeOrBuilder getTextChangesOrBuilder(
+        int index) {
+      if (textChangesBuilder_ == null) {
+        return textChanges_.get(index);
+      } else {
+        return textChangesBuilder_.getMessageOrBuilder(index);
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Placeholder.  A list of text corrections made to
+     * [Document.text][google.cloud.documentai.v1beta2.Document.text].  This is
+     * usually used for annotating corrections to OCR mistakes.  Text changes for
+     * a given revision may not overlap with each other.
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.TextChange text_changes = 14;
+     */
+    public java.util.List<
+            ? extends com.google.cloud.documentai.v1beta2.Document.TextChangeOrBuilder>
+        getTextChangesOrBuilderList() {
+      if (textChangesBuilder_ != null) {
+        return textChangesBuilder_.getMessageOrBuilderList();
+      } else {
+        return java.util.Collections.unmodifiableList(textChanges_);
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Placeholder.  A list of text corrections made to
+     * [Document.text][google.cloud.documentai.v1beta2.Document.text].  This is
+     * usually used for annotating corrections to OCR mistakes.  Text changes for
+     * a given revision may not overlap with each other.
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.TextChange text_changes = 14;
+     */
+    public com.google.cloud.documentai.v1beta2.Document.TextChange.Builder addTextChangesBuilder() {
+      return getTextChangesFieldBuilder()
+          .addBuilder(com.google.cloud.documentai.v1beta2.Document.TextChange.getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * 
+     * Placeholder.  A list of text corrections made to
+     * [Document.text][google.cloud.documentai.v1beta2.Document.text].  This is
+     * usually used for annotating corrections to OCR mistakes.  Text changes for
+     * a given revision may not overlap with each other.
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.TextChange text_changes = 14;
+     */
+    public com.google.cloud.documentai.v1beta2.Document.TextChange.Builder addTextChangesBuilder(
+        int index) {
+      return getTextChangesFieldBuilder()
+          .addBuilder(
+              index, com.google.cloud.documentai.v1beta2.Document.TextChange.getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * 
+     * Placeholder.  A list of text corrections made to
+     * [Document.text][google.cloud.documentai.v1beta2.Document.text].  This is
+     * usually used for annotating corrections to OCR mistakes.  Text changes for
+     * a given revision may not overlap with each other.
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.TextChange text_changes = 14;
+     */
+    public java.util.List
+        getTextChangesBuilderList() {
+      return getTextChangesFieldBuilder().getBuilderList();
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.documentai.v1beta2.Document.TextChange,
+            com.google.cloud.documentai.v1beta2.Document.TextChange.Builder,
+            com.google.cloud.documentai.v1beta2.Document.TextChangeOrBuilder>
+        getTextChangesFieldBuilder() {
+      if (textChangesBuilder_ == null) {
+        textChangesBuilder_ =
+            new com.google.protobuf.RepeatedFieldBuilderV3<
+                com.google.cloud.documentai.v1beta2.Document.TextChange,
+                com.google.cloud.documentai.v1beta2.Document.TextChange.Builder,
+                com.google.cloud.documentai.v1beta2.Document.TextChangeOrBuilder>(
+                textChanges_, ((bitField0_ & 0x00000100) != 0), getParentForChildren(), isClean());
+        textChanges_ = null;
+      }
+      return textChangesBuilder_;
+    }
+
     private com.google.cloud.documentai.v1beta2.Document.ShardInfo shardInfo_;
     private com.google.protobuf.SingleFieldBuilderV3<
             com.google.cloud.documentai.v1beta2.Document.ShardInfo,
@@ -42121,7 +70246,7 @@ public Builder removeEntityRelations(int index) {
      * @return Whether the shardInfo field is set.
      */
     public boolean hasShardInfo() {
-      return ((bitField0_ & 0x00000100) != 0);
+      return ((bitField0_ & 0x00000200) != 0);
     }
     /**
      *
@@ -42163,7 +70288,7 @@ public Builder setShardInfo(com.google.cloud.documentai.v1beta2.Document.ShardIn
       } else {
         shardInfoBuilder_.setMessage(value);
       }
-      bitField0_ |= 0x00000100;
+      bitField0_ |= 0x00000200;
       onChanged();
       return this;
     }
@@ -42184,7 +70309,7 @@ public Builder setShardInfo(
       } else {
         shardInfoBuilder_.setMessage(builderForValue.build());
       }
-      bitField0_ |= 0x00000100;
+      bitField0_ |= 0x00000200;
       onChanged();
       return this;
     }
@@ -42200,7 +70325,7 @@ public Builder setShardInfo(
      */
     public Builder mergeShardInfo(com.google.cloud.documentai.v1beta2.Document.ShardInfo value) {
       if (shardInfoBuilder_ == null) {
-        if (((bitField0_ & 0x00000100) != 0)
+        if (((bitField0_ & 0x00000200) != 0)
             && shardInfo_ != null
             && shardInfo_
                 != com.google.cloud.documentai.v1beta2.Document.ShardInfo.getDefaultInstance()) {
@@ -42211,7 +70336,7 @@ public Builder mergeShardInfo(com.google.cloud.documentai.v1beta2.Document.Shard
       } else {
         shardInfoBuilder_.mergeFrom(value);
       }
-      bitField0_ |= 0x00000100;
+      bitField0_ |= 0x00000200;
       onChanged();
       return this;
     }
@@ -42226,7 +70351,7 @@ public Builder mergeShardInfo(com.google.cloud.documentai.v1beta2.Document.Shard
      * .google.cloud.documentai.v1beta2.Document.ShardInfo shard_info = 9;
      */
     public Builder clearShardInfo() {
-      bitField0_ = (bitField0_ & ~0x00000100);
+      bitField0_ = (bitField0_ & ~0x00000200);
       shardInfo_ = null;
       if (shardInfoBuilder_ != null) {
         shardInfoBuilder_.dispose();
@@ -42246,7 +70371,7 @@ public Builder clearShardInfo() {
      * .google.cloud.documentai.v1beta2.Document.ShardInfo shard_info = 9;
      */
     public com.google.cloud.documentai.v1beta2.Document.ShardInfo.Builder getShardInfoBuilder() {
-      bitField0_ |= 0x00000100;
+      bitField0_ |= 0x00000200;
       onChanged();
       return getShardInfoFieldBuilder().getBuilder();
     }
@@ -42300,10 +70425,10 @@ public com.google.cloud.documentai.v1beta2.Document.ShardInfoOrBuilder getShardI
         java.util.Collections.emptyList();
 
     private void ensureLabelsIsMutable() {
-      if (!((bitField0_ & 0x00000200) != 0)) {
+      if (!((bitField0_ & 0x00000400) != 0)) {
         labels_ =
             new java.util.ArrayList(labels_);
-        bitField0_ |= 0x00000200;
+        bitField0_ |= 0x00000400;
       }
     }
 
@@ -42519,7 +70644,7 @@ public Builder addAllLabels(
     public Builder clearLabels() {
       if (labelsBuilder_ == null) {
         labels_ = java.util.Collections.emptyList();
-        bitField0_ = (bitField0_ & ~0x00000200);
+        bitField0_ = (bitField0_ & ~0x00000400);
         onChanged();
       } else {
         labelsBuilder_.clear();
@@ -42643,7 +70768,7 @@ public com.google.cloud.documentai.v1beta2.Document.Label.Builder addLabelsBuild
                 com.google.cloud.documentai.v1beta2.Document.Label,
                 com.google.cloud.documentai.v1beta2.Document.Label.Builder,
                 com.google.cloud.documentai.v1beta2.Document.LabelOrBuilder>(
-                labels_, ((bitField0_ & 0x00000200) != 0), getParentForChildren(), isClean());
+                labels_, ((bitField0_ & 0x00000400) != 0), getParentForChildren(), isClean());
         labels_ = null;
       }
       return labelsBuilder_;
@@ -42665,7 +70790,7 @@ public com.google.cloud.documentai.v1beta2.Document.Label.Builder addLabelsBuild
      * @return Whether the error field is set.
      */
     public boolean hasError() {
-      return ((bitField0_ & 0x00000400) != 0);
+      return ((bitField0_ & 0x00000800) != 0);
     }
     /**
      *
@@ -42703,7 +70828,7 @@ public Builder setError(com.google.rpc.Status value) {
       } else {
         errorBuilder_.setMessage(value);
       }
-      bitField0_ |= 0x00000400;
+      bitField0_ |= 0x00000800;
       onChanged();
       return this;
     }
@@ -42722,7 +70847,7 @@ public Builder setError(com.google.rpc.Status.Builder builderForValue) {
       } else {
         errorBuilder_.setMessage(builderForValue.build());
       }
-      bitField0_ |= 0x00000400;
+      bitField0_ |= 0x00000800;
       onChanged();
       return this;
     }
@@ -42737,7 +70862,7 @@ public Builder setError(com.google.rpc.Status.Builder builderForValue) {
      */
     public Builder mergeError(com.google.rpc.Status value) {
       if (errorBuilder_ == null) {
-        if (((bitField0_ & 0x00000400) != 0)
+        if (((bitField0_ & 0x00000800) != 0)
             && error_ != null
             && error_ != com.google.rpc.Status.getDefaultInstance()) {
           getErrorBuilder().mergeFrom(value);
@@ -42747,7 +70872,7 @@ public Builder mergeError(com.google.rpc.Status value) {
       } else {
         errorBuilder_.mergeFrom(value);
       }
-      bitField0_ |= 0x00000400;
+      bitField0_ |= 0x00000800;
       onChanged();
       return this;
     }
@@ -42761,7 +70886,7 @@ public Builder mergeError(com.google.rpc.Status value) {
      * .google.rpc.Status error = 10;
      */
     public Builder clearError() {
-      bitField0_ = (bitField0_ & ~0x00000400);
+      bitField0_ = (bitField0_ & ~0x00000800);
       error_ = null;
       if (errorBuilder_ != null) {
         errorBuilder_.dispose();
@@ -42780,7 +70905,7 @@ public Builder clearError() {
      * .google.rpc.Status error = 10;
      */
     public com.google.rpc.Status.Builder getErrorBuilder() {
-      bitField0_ |= 0x00000400;
+      bitField0_ |= 0x00000800;
       onChanged();
       return getErrorFieldBuilder().getBuilder();
     }
@@ -42823,6 +70948,366 @@ public com.google.rpc.StatusOrBuilder getErrorOrBuilder() {
       return errorBuilder_;
     }
 
+    private java.util.List revisions_ =
+        java.util.Collections.emptyList();
+
+    private void ensureRevisionsIsMutable() {
+      if (!((bitField0_ & 0x00001000) != 0)) {
+        revisions_ =
+            new java.util.ArrayList(
+                revisions_);
+        bitField0_ |= 0x00001000;
+      }
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.documentai.v1beta2.Document.Revision,
+            com.google.cloud.documentai.v1beta2.Document.Revision.Builder,
+            com.google.cloud.documentai.v1beta2.Document.RevisionOrBuilder>
+        revisionsBuilder_;
+
+    /**
+     *
+     *
+     * 
+     * Placeholder. Revision history of this document.
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.Revision revisions = 13;
+     */
+    public java.util.List
+        getRevisionsList() {
+      if (revisionsBuilder_ == null) {
+        return java.util.Collections.unmodifiableList(revisions_);
+      } else {
+        return revisionsBuilder_.getMessageList();
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Placeholder. Revision history of this document.
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.Revision revisions = 13;
+     */
+    public int getRevisionsCount() {
+      if (revisionsBuilder_ == null) {
+        return revisions_.size();
+      } else {
+        return revisionsBuilder_.getCount();
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Placeholder. Revision history of this document.
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.Revision revisions = 13;
+     */
+    public com.google.cloud.documentai.v1beta2.Document.Revision getRevisions(int index) {
+      if (revisionsBuilder_ == null) {
+        return revisions_.get(index);
+      } else {
+        return revisionsBuilder_.getMessage(index);
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Placeholder. Revision history of this document.
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.Revision revisions = 13;
+     */
+    public Builder setRevisions(
+        int index, com.google.cloud.documentai.v1beta2.Document.Revision value) {
+      if (revisionsBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureRevisionsIsMutable();
+        revisions_.set(index, value);
+        onChanged();
+      } else {
+        revisionsBuilder_.setMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Placeholder. Revision history of this document.
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.Revision revisions = 13;
+     */
+    public Builder setRevisions(
+        int index, com.google.cloud.documentai.v1beta2.Document.Revision.Builder builderForValue) {
+      if (revisionsBuilder_ == null) {
+        ensureRevisionsIsMutable();
+        revisions_.set(index, builderForValue.build());
+        onChanged();
+      } else {
+        revisionsBuilder_.setMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Placeholder. Revision history of this document.
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.Revision revisions = 13;
+     */
+    public Builder addRevisions(com.google.cloud.documentai.v1beta2.Document.Revision value) {
+      if (revisionsBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureRevisionsIsMutable();
+        revisions_.add(value);
+        onChanged();
+      } else {
+        revisionsBuilder_.addMessage(value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Placeholder. Revision history of this document.
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.Revision revisions = 13;
+     */
+    public Builder addRevisions(
+        int index, com.google.cloud.documentai.v1beta2.Document.Revision value) {
+      if (revisionsBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureRevisionsIsMutable();
+        revisions_.add(index, value);
+        onChanged();
+      } else {
+        revisionsBuilder_.addMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Placeholder. Revision history of this document.
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.Revision revisions = 13;
+     */
+    public Builder addRevisions(
+        com.google.cloud.documentai.v1beta2.Document.Revision.Builder builderForValue) {
+      if (revisionsBuilder_ == null) {
+        ensureRevisionsIsMutable();
+        revisions_.add(builderForValue.build());
+        onChanged();
+      } else {
+        revisionsBuilder_.addMessage(builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Placeholder. Revision history of this document.
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.Revision revisions = 13;
+     */
+    public Builder addRevisions(
+        int index, com.google.cloud.documentai.v1beta2.Document.Revision.Builder builderForValue) {
+      if (revisionsBuilder_ == null) {
+        ensureRevisionsIsMutable();
+        revisions_.add(index, builderForValue.build());
+        onChanged();
+      } else {
+        revisionsBuilder_.addMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Placeholder. Revision history of this document.
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.Revision revisions = 13;
+     */
+    public Builder addAllRevisions(
+        java.lang.Iterable
+            values) {
+      if (revisionsBuilder_ == null) {
+        ensureRevisionsIsMutable();
+        com.google.protobuf.AbstractMessageLite.Builder.addAll(values, revisions_);
+        onChanged();
+      } else {
+        revisionsBuilder_.addAllMessages(values);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Placeholder. Revision history of this document.
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.Revision revisions = 13;
+     */
+    public Builder clearRevisions() {
+      if (revisionsBuilder_ == null) {
+        revisions_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00001000);
+        onChanged();
+      } else {
+        revisionsBuilder_.clear();
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Placeholder. Revision history of this document.
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.Revision revisions = 13;
+     */
+    public Builder removeRevisions(int index) {
+      if (revisionsBuilder_ == null) {
+        ensureRevisionsIsMutable();
+        revisions_.remove(index);
+        onChanged();
+      } else {
+        revisionsBuilder_.remove(index);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Placeholder. Revision history of this document.
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.Revision revisions = 13;
+     */
+    public com.google.cloud.documentai.v1beta2.Document.Revision.Builder getRevisionsBuilder(
+        int index) {
+      return getRevisionsFieldBuilder().getBuilder(index);
+    }
+    /**
+     *
+     *
+     * 
+     * Placeholder. Revision history of this document.
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.Revision revisions = 13;
+     */
+    public com.google.cloud.documentai.v1beta2.Document.RevisionOrBuilder getRevisionsOrBuilder(
+        int index) {
+      if (revisionsBuilder_ == null) {
+        return revisions_.get(index);
+      } else {
+        return revisionsBuilder_.getMessageOrBuilder(index);
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Placeholder. Revision history of this document.
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.Revision revisions = 13;
+     */
+    public java.util.List
+        getRevisionsOrBuilderList() {
+      if (revisionsBuilder_ != null) {
+        return revisionsBuilder_.getMessageOrBuilderList();
+      } else {
+        return java.util.Collections.unmodifiableList(revisions_);
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Placeholder. Revision history of this document.
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.Revision revisions = 13;
+     */
+    public com.google.cloud.documentai.v1beta2.Document.Revision.Builder addRevisionsBuilder() {
+      return getRevisionsFieldBuilder()
+          .addBuilder(com.google.cloud.documentai.v1beta2.Document.Revision.getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * 
+     * Placeholder. Revision history of this document.
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.Revision revisions = 13;
+     */
+    public com.google.cloud.documentai.v1beta2.Document.Revision.Builder addRevisionsBuilder(
+        int index) {
+      return getRevisionsFieldBuilder()
+          .addBuilder(
+              index, com.google.cloud.documentai.v1beta2.Document.Revision.getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * 
+     * Placeholder. Revision history of this document.
+     * 

+     *
+     * repeated .google.cloud.documentai.v1beta2.Document.Revision revisions = 13;
+     */
+    public java.util.List
+        getRevisionsBuilderList() {
+      return getRevisionsFieldBuilder().getBuilderList();
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.documentai.v1beta2.Document.Revision,
+            com.google.cloud.documentai.v1beta2.Document.Revision.Builder,
+            com.google.cloud.documentai.v1beta2.Document.RevisionOrBuilder>
+        getRevisionsFieldBuilder() {
+      if (revisionsBuilder_ == null) {
+        revisionsBuilder_ =
+            new com.google.protobuf.RepeatedFieldBuilderV3<
+                com.google.cloud.documentai.v1beta2.Document.Revision,
+                com.google.cloud.documentai.v1beta2.Document.Revision.Builder,
+                com.google.cloud.documentai.v1beta2.Document.RevisionOrBuilder>(
+                revisions_, ((bitField0_ & 0x00001000) != 0), getParentForChildren(), isClean());
+        revisions_ = null;
+      }
+      return revisionsBuilder_;
+    }
+
     @java.lang.Override
     public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
       return super.setUnknownFields(unknownFields);
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/java/com/google/cloud/documentai/v1beta2/DocumentAiProto.java b/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/java/com/google/cloud/documentai/v1beta2/DocumentAiProto.java
index c19fd2066932..463f722584b2 100644
--- a/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/java/com/google/cloud/documentai/v1beta2/DocumentAiProto.java
+++ b/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/java/com/google/cloud/documentai/v1beta2/DocumentAiProto.java
@@ -111,85 +111,85 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
           + "ogle/protobuf/timestamp.proto\"\177\n\034BatchPr"
           + "ocessDocumentsRequest\022O\n\010requests\030\001 \003(\0132"
           + "7.google.cloud.documentai.v1beta2.Proces"
-          + "sDocumentRequestB\004\342A\001\002\022\016\n\006parent\030\002 \001(\t\"\346"
+          + "sDocumentRequestB\004\342A\001\002\022\016\n\006parent\030\002 \001(\t\"\340"
           + "\004\n\026ProcessDocumentRequest\022\016\n\006parent\030\t \001("
           + "\t\022H\n\014input_config\030\001 \001(\0132,.google.cloud.d"
-          + "ocumentai.v1beta2.InputConfigB\004\342A\001\002\022J\n\ro"
+          + "ocumentai.v1beta2.InputConfigB\004\342A\001\002\022D\n\ro"
           + "utput_config\030\002 \001(\0132-.google.cloud.docume"
-          + "ntai.v1beta2.OutputConfigB\004\342A\001\001\022\025\n\rdocum"
-          + "ent_type\030\003 \001(\t\022W\n\027table_extraction_param"
-          + "s\030\004 \001(\01326.google.cloud.documentai.v1beta"
-          + "2.TableExtractionParams\022U\n\026form_extracti"
-          + "on_params\030\005 \001(\01325.google.cloud.documenta"
-          + "i.v1beta2.FormExtractionParams\022Y\n\030entity"
-          + "_extraction_params\030\006 \001(\01327.google.cloud."
-          + "documentai.v1beta2.EntityExtractionParam"
-          + "s\022>\n\nocr_params\030\007 \001(\0132*.google.cloud.doc"
-          + "umentai.v1beta2.OcrParams\022D\n\rautoml_para"
-          + "ms\030\010 \001(\0132-.google.cloud.documentai.v1bet"
-          + "a2.AutoMlParams\"l\n\035BatchProcessDocuments"
-          + "Response\022K\n\tresponses\030\001 \003(\01328.google.clo"
-          + "ud.documentai.v1beta2.ProcessDocumentRes"
-          + "ponse\"\243\001\n\027ProcessDocumentResponse\022B\n\014inp"
-          + "ut_config\030\001 \001(\0132,.google.cloud.documenta"
-          + "i.v1beta2.InputConfig\022D\n\routput_config\030\002"
-          + " \001(\0132-.google.cloud.documentai.v1beta2.O"
-          + "utputConfig\"#\n\tOcrParams\022\026\n\016language_hin"
-          + "ts\030\001 \003(\t\"\255\001\n\025TableExtractionParams\022\017\n\007en"
-          + "abled\030\001 \001(\010\022P\n\021table_bound_hints\030\002 \003(\0132/"
-          + ".google.cloud.documentai.v1beta2.TableBo"
-          + "undHintB\004\342A\001\001\022\032\n\014header_hints\030\003 \003(\tB\004\342A\001"
-          + "\001\022\025\n\rmodel_version\030\004 \001(\t\"p\n\016TableBoundHi"
-          + "nt\022\031\n\013page_number\030\001 \001(\005B\004\342A\001\001\022C\n\014boundin"
-          + "g_box\030\002 \001(\0132-.google.cloud.documentai.v1"
-          + "beta2.BoundingPoly\"\217\001\n\024FormExtractionPar"
-          + "ams\022\017\n\007enabled\030\001 \001(\010\022O\n\024key_value_pair_h"
-          + "ints\030\002 \003(\01321.google.cloud.documentai.v1b"
-          + "eta2.KeyValuePairHint\022\025\n\rmodel_version\030\003"
-          + " \001(\t\"4\n\020KeyValuePairHint\022\013\n\003key\030\001 \001(\t\022\023\n"
-          + "\013value_types\030\002 \003(\t\"@\n\026EntityExtractionPa"
-          + "rams\022\017\n\007enabled\030\001 \001(\010\022\025\n\rmodel_version\030\002"
-          + " \001(\t\"\035\n\014AutoMlParams\022\r\n\005model\030\001 \001(\t\"\206\001\n\013"
-          + "InputConfig\022@\n\ngcs_source\030\001 \001(\0132*.google"
-          + ".cloud.documentai.v1beta2.GcsSourceH\000\022\022\n"
-          + "\010contents\030\003 \001(\014H\000\022\027\n\tmime_type\030\002 \001(\tB\004\342A"
-          + "\001\002B\010\n\006source\"\202\001\n\014OutputConfig\022J\n\017gcs_des"
-          + "tination\030\001 \001(\0132/.google.cloud.documentai"
-          + ".v1beta2.GcsDestinationH\000\022\027\n\017pages_per_s"
-          + "hard\030\002 \001(\005B\r\n\013destination\"\036\n\tGcsSource\022\021"
-          + "\n\003uri\030\001 \001(\tB\004\342A\001\002\"#\n\016GcsDestination\022\021\n\003u"
-          + "ri\030\001 \001(\tB\004\342A\001\002\"\307\002\n\021OperationMetadata\022G\n\005"
-          + "state\030\001 \001(\01628.google.cloud.documentai.v1"
-          + "beta2.OperationMetadata.State\022\025\n\rstate_m"
-          + "essage\030\002 \001(\t\022/\n\013create_time\030\003 \001(\0132\032.goog"
-          + "le.protobuf.Timestamp\022/\n\013update_time\030\004 \001"
-          + "(\0132\032.google.protobuf.Timestamp\"p\n\005State\022"
-          + "\025\n\021STATE_UNSPECIFIED\020\000\022\014\n\010ACCEPTED\020\001\022\013\n\007"
-          + "WAITING\020\002\022\013\n\007RUNNING\020\003\022\r\n\tSUCCEEDED\020\004\022\r\n"
-          + "\tCANCELLED\020\005\022\n\n\006FAILED\020\0062\240\005\n\034DocumentUnd"
-          + "erstandingService\022\274\002\n\025BatchProcessDocume"
-          + "nts\022=.google.cloud.documentai.v1beta2.Ba"
-          + "tchProcessDocumentsRequest\032\035.google.long"
-          + "running.Operation\"\304\001\312A2\n\035BatchProcessDoc"
-          + "umentsResponse\022\021OperationMetadata\332A\010requ"
-          + "ests\202\323\344\223\002~\"?/v1beta2/{parent=projects/*/"
-          + "locations/*}/documents:batchProcess:\001*Z8"
-          + "\"3/v1beta2/{parent=projects/*}/documents"
-          + ":batchProcess:\001*\022\361\001\n\017ProcessDocument\0227.g"
-          + "oogle.cloud.documentai.v1beta2.ProcessDo"
-          + "cumentRequest\032).google.cloud.documentai."
-          + "v1beta2.Document\"z\202\323\344\223\002t\":/v1beta2/{pare"
-          + "nt=projects/*/locations/*}/documents:pro"
-          + "cess:\001*Z3\"./v1beta2/{parent=projects/*}/"
-          + "documents:process:\001*\032M\312A\031documentai.goog"
-          + "leapis.com\322A.https://www.googleapis.com/"
-          + "auth/cloud-platformB\346\001\n#com.google.cloud"
-          + ".documentai.v1beta2B\017DocumentAiProtoP\001ZC"
-          + "cloud.google.com/go/documentai/apiv1beta"
-          + "2/documentaipb;documentaipb\252\002\037Google.Clo"
-          + "ud.DocumentAI.V1Beta2\312\002\037Google\\Cloud\\Doc"
-          + "umentAI\\V1beta2\352\002\"Google::Cloud::Documen"
-          + "tAI::V1beta2b\006proto3"
+          + "ntai.v1beta2.OutputConfig\022\025\n\rdocument_ty"
+          + "pe\030\003 \001(\t\022W\n\027table_extraction_params\030\004 \001("
+          + "\01326.google.cloud.documentai.v1beta2.Tabl"
+          + "eExtractionParams\022U\n\026form_extraction_par"
+          + "ams\030\005 \001(\01325.google.cloud.documentai.v1be"
+          + "ta2.FormExtractionParams\022Y\n\030entity_extra"
+          + "ction_params\030\006 \001(\01327.google.cloud.docume"
+          + "ntai.v1beta2.EntityExtractionParams\022>\n\no"
+          + "cr_params\030\007 \001(\0132*.google.cloud.documenta"
+          + "i.v1beta2.OcrParams\022D\n\rautoml_params\030\010 \001"
+          + "(\0132-.google.cloud.documentai.v1beta2.Aut"
+          + "oMlParams\"l\n\035BatchProcessDocumentsRespon"
+          + "se\022K\n\tresponses\030\001 \003(\01328.google.cloud.doc"
+          + "umentai.v1beta2.ProcessDocumentResponse\""
+          + "\243\001\n\027ProcessDocumentResponse\022B\n\014input_con"
+          + "fig\030\001 \001(\0132,.google.cloud.documentai.v1be"
+          + "ta2.InputConfig\022D\n\routput_config\030\002 \001(\0132-"
+          + ".google.cloud.documentai.v1beta2.OutputC"
+          + "onfig\"#\n\tOcrParams\022\026\n\016language_hints\030\001 \003"
+          + "(\t\"\255\001\n\025TableExtractionParams\022\017\n\007enabled\030"
+          + "\001 \001(\010\022P\n\021table_bound_hints\030\002 \003(\0132/.googl"
+          + "e.cloud.documentai.v1beta2.TableBoundHin"
+          + "tB\004\342A\001\001\022\032\n\014header_hints\030\003 \003(\tB\004\342A\001\001\022\025\n\rm"
+          + "odel_version\030\004 \001(\t\"p\n\016TableBoundHint\022\031\n\013"
+          + "page_number\030\001 \001(\005B\004\342A\001\001\022C\n\014bounding_box\030"
+          + "\002 \001(\0132-.google.cloud.documentai.v1beta2."
+          + "BoundingPoly\"\217\001\n\024FormExtractionParams\022\017\n"
+          + "\007enabled\030\001 \001(\010\022O\n\024key_value_pair_hints\030\002"
+          + " \003(\01321.google.cloud.documentai.v1beta2.K"
+          + "eyValuePairHint\022\025\n\rmodel_version\030\003 \001(\t\"4"
+          + "\n\020KeyValuePairHint\022\013\n\003key\030\001 \001(\t\022\023\n\013value"
+          + "_types\030\002 \003(\t\"@\n\026EntityExtractionParams\022\017"
+          + "\n\007enabled\030\001 \001(\010\022\025\n\rmodel_version\030\002 \001(\t\"\035"
+          + "\n\014AutoMlParams\022\r\n\005model\030\001 \001(\t\"\206\001\n\013InputC"
+          + "onfig\022@\n\ngcs_source\030\001 \001(\0132*.google.cloud"
+          + ".documentai.v1beta2.GcsSourceH\000\022\022\n\010conte"
+          + "nts\030\003 \001(\014H\000\022\027\n\tmime_type\030\002 \001(\tB\004\342A\001\002B\010\n\006"
+          + "source\"\202\001\n\014OutputConfig\022J\n\017gcs_destinati"
+          + "on\030\001 \001(\0132/.google.cloud.documentai.v1bet"
+          + "a2.GcsDestinationH\000\022\027\n\017pages_per_shard\030\002"
+          + " \001(\005B\r\n\013destination\"\036\n\tGcsSource\022\021\n\003uri\030"
+          + "\001 \001(\tB\004\342A\001\002\"#\n\016GcsDestination\022\021\n\003uri\030\001 \001"
+          + "(\tB\004\342A\001\002\"\307\002\n\021OperationMetadata\022G\n\005state\030"
+          + "\001 \001(\01628.google.cloud.documentai.v1beta2."
+          + "OperationMetadata.State\022\025\n\rstate_message"
+          + "\030\002 \001(\t\022/\n\013create_time\030\003 \001(\0132\032.google.pro"
+          + "tobuf.Timestamp\022/\n\013update_time\030\004 \001(\0132\032.g"
+          + "oogle.protobuf.Timestamp\"p\n\005State\022\025\n\021STA"
+          + "TE_UNSPECIFIED\020\000\022\014\n\010ACCEPTED\020\001\022\013\n\007WAITIN"
+          + "G\020\002\022\013\n\007RUNNING\020\003\022\r\n\tSUCCEEDED\020\004\022\r\n\tCANCE"
+          + "LLED\020\005\022\n\n\006FAILED\020\0062\240\005\n\034DocumentUnderstan"
+          + "dingService\022\274\002\n\025BatchProcessDocuments\022=."
+          + "google.cloud.documentai.v1beta2.BatchPro"
+          + "cessDocumentsRequest\032\035.google.longrunnin"
+          + "g.Operation\"\304\001\312A2\n\035BatchProcessDocuments"
+          + "Response\022\021OperationMetadata\332A\010requests\202\323"
+          + "\344\223\002~\"?/v1beta2/{parent=projects/*/locati"
+          + "ons/*}/documents:batchProcess:\001*Z8\"3/v1b"
+          + "eta2/{parent=projects/*}/documents:batch"
+          + "Process:\001*\022\361\001\n\017ProcessDocument\0227.google."
+          + "cloud.documentai.v1beta2.ProcessDocument"
+          + "Request\032).google.cloud.documentai.v1beta"
+          + "2.Document\"z\202\323\344\223\002t\":/v1beta2/{parent=pro"
+          + "jects/*/locations/*}/documents:process:\001"
+          + "*Z3\"./v1beta2/{parent=projects/*}/docume"
+          + "nts:process:\001*\032M\312A\031documentai.googleapis"
+          + ".com\322A.https://www.googleapis.com/auth/c"
+          + "loud-platformB\346\001\n#com.google.cloud.docum"
+          + "entai.v1beta2B\017DocumentAiProtoP\001ZCcloud."
+          + "google.com/go/documentai/apiv1beta2/docu"
+          + "mentaipb;documentaipb\252\002\037Google.Cloud.Doc"
+          + "umentAI.V1Beta2\312\002\037Google\\Cloud\\DocumentA"
+          + "I\\V1beta2\352\002\"Google::Cloud::DocumentAI::V"
+          + "1beta2b\006proto3"
     };
     descriptor =
         com.google.protobuf.Descriptors.FileDescriptor.internalBuildGeneratedFileFrom(
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/java/com/google/cloud/documentai/v1beta2/DocumentOrBuilder.java b/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/java/com/google/cloud/documentai/v1beta2/DocumentOrBuilder.java
index 6197a3e1b9a2..164834e7e8af 100644
--- a/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/java/com/google/cloud/documentai/v1beta2/DocumentOrBuilder.java
+++ b/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/java/com/google/cloud/documentai/v1beta2/DocumentOrBuilder.java
@@ -27,14 +27,13 @@ public interface DocumentOrBuilder
    *
    *
    * 
-   * Currently supports Google Cloud Storage URI of the form
-   *    `gs://bucket_name/object_name`. Object versioning is not supported.
-   *    See [Google Cloud Storage Request
-   *    URIs](https://cloud.google.com/storage/docs/reference-uris) for more
-   *    info.
+   * Optional. Currently supports Google Cloud Storage URI of the form
+   * `gs://bucket_name/object_name`. Object versioning is not supported.
+   * For more information, refer to [Google Cloud Storage Request
+   * URIs](https://cloud.google.com/storage/docs/reference-uris).
    * 

    *
-   * string uri = 1;
+   * string uri = 1 [(.google.api.field_behavior) = OPTIONAL];
    *
    * @return Whether the uri field is set.
    */
@@ -43,14 +42,13 @@ public interface DocumentOrBuilder
    *
    *
    * 
-   * Currently supports Google Cloud Storage URI of the form
-   *    `gs://bucket_name/object_name`. Object versioning is not supported.
-   *    See [Google Cloud Storage Request
-   *    URIs](https://cloud.google.com/storage/docs/reference-uris) for more
-   *    info.
+   * Optional. Currently supports Google Cloud Storage URI of the form
+   * `gs://bucket_name/object_name`. Object versioning is not supported.
+   * For more information, refer to [Google Cloud Storage Request
+   * URIs](https://cloud.google.com/storage/docs/reference-uris).
    * 

    *
-   * string uri = 1;
+   * string uri = 1 [(.google.api.field_behavior) = OPTIONAL];
    *
    * @return The uri.
    */
@@ -59,14 +57,13 @@ public interface DocumentOrBuilder
    *
    *
    * 
-   * Currently supports Google Cloud Storage URI of the form
-   *    `gs://bucket_name/object_name`. Object versioning is not supported.
-   *    See [Google Cloud Storage Request
-   *    URIs](https://cloud.google.com/storage/docs/reference-uris) for more
-   *    info.
+   * Optional. Currently supports Google Cloud Storage URI of the form
+   * `gs://bucket_name/object_name`. Object versioning is not supported.
+   * For more information, refer to [Google Cloud Storage Request
+   * URIs](https://cloud.google.com/storage/docs/reference-uris).
    * 

    *
-   * string uri = 1;
+   * string uri = 1 [(.google.api.field_behavior) = OPTIONAL];
    *
    * @return The bytes for uri.
    */
@@ -76,12 +73,12 @@ public interface DocumentOrBuilder
    *
    *
    * 
-   * Inline document content, represented as a stream of bytes.
+   * Optional. Inline document content, represented as a stream of bytes.
    * Note: As with all `bytes` fields, protobuffers use a pure binary
    * representation, whereas JSON representations use base64.
    * 

    *
-   * bytes content = 2;
+   * bytes content = 2 [(.google.api.field_behavior) = OPTIONAL];
    *
    * @return Whether the content field is set.
    */
@@ -90,12 +87,12 @@ public interface DocumentOrBuilder
    *
    *
    * 
-   * Inline document content, represented as a stream of bytes.
+   * Optional. Inline document content, represented as a stream of bytes.
    * Note: As with all `bytes` fields, protobuffers use a pure binary
    * representation, whereas JSON representations use base64.
    * 

    *
-   * bytes content = 2;
+   * bytes content = 2 [(.google.api.field_behavior) = OPTIONAL];
    *
    * @return The content.
    */
@@ -105,9 +102,8 @@ public interface DocumentOrBuilder
    *
    *
    * 
-   * An IANA published MIME type (also referred to as media type). For more
-   * information, see
-   * https://www.iana.org/assignments/media-types/media-types.xhtml.
+   * An IANA published [media type (MIME
+   * type)](https://www.iana.org/assignments/media-types/media-types.xhtml).
    * 

    *
    * string mime_type = 3;
@@ -119,9 +115,8 @@ public interface DocumentOrBuilder
    *
    *
    * 
-   * An IANA published MIME type (also referred to as media type). For more
-   * information, see
-   * https://www.iana.org/assignments/media-types/media-types.xhtml.
+   * An IANA published [media type (MIME
+   * type)](https://www.iana.org/assignments/media-types/media-types.xhtml).
    * 

    *
    * string mime_type = 3;
@@ -134,10 +129,10 @@ public interface DocumentOrBuilder
    *
    *
    * 
-   * UTF-8 encoded text in reading order from the document.
+   * Optional. UTF-8 encoded text in reading order from the document.
    * 

    *
-   * string text = 4;
+   * string text = 4 [(.google.api.field_behavior) = OPTIONAL];
    *
    * @return The text.
    */
@@ -146,10 +141,10 @@ public interface DocumentOrBuilder
    *
    *
    * 
-   * UTF-8 encoded text in reading order from the document.
+   * Optional. UTF-8 encoded text in reading order from the document.
    * 

    *
-   * string text = 4;
+   * string text = 4 [(.google.api.field_behavior) = OPTIONAL];
    *
    * @return The bytes for text.
    */
@@ -159,59 +154,80 @@ public interface DocumentOrBuilder
    *
    *
    * 
-   * Styles for the [Document.text][google.cloud.documentai.v1beta2.Document.text].
+   * Styles for the
+   * [Document.text][google.cloud.documentai.v1beta2.Document.text].
    * 

    *
-   * repeated .google.cloud.documentai.v1beta2.Document.Style text_styles = 5;
+   * 
+   * repeated .google.cloud.documentai.v1beta2.Document.Style text_styles = 5 [deprecated = true];
+   * 
    */
+  @java.lang.Deprecated
   java.util.List getTextStylesList();
   /**
    *
    *
    * 
-   * Styles for the [Document.text][google.cloud.documentai.v1beta2.Document.text].
+   * Styles for the
+   * [Document.text][google.cloud.documentai.v1beta2.Document.text].
    * 

    *
-   * repeated .google.cloud.documentai.v1beta2.Document.Style text_styles = 5;
+   * 
+   * repeated .google.cloud.documentai.v1beta2.Document.Style text_styles = 5 [deprecated = true];
+   * 
    */
+  @java.lang.Deprecated
   com.google.cloud.documentai.v1beta2.Document.Style getTextStyles(int index);
   /**
    *
    *
    * 
-   * Styles for the [Document.text][google.cloud.documentai.v1beta2.Document.text].
+   * Styles for the
+   * [Document.text][google.cloud.documentai.v1beta2.Document.text].
    * 

    *
-   * repeated .google.cloud.documentai.v1beta2.Document.Style text_styles = 5;
+   * 
+   * repeated .google.cloud.documentai.v1beta2.Document.Style text_styles = 5 [deprecated = true];
+   * 
    */
+  @java.lang.Deprecated
   int getTextStylesCount();
   /**
    *
    *
    * 
-   * Styles for the [Document.text][google.cloud.documentai.v1beta2.Document.text].
+   * Styles for the
+   * [Document.text][google.cloud.documentai.v1beta2.Document.text].
    * 

    *
-   * repeated .google.cloud.documentai.v1beta2.Document.Style text_styles = 5;
+   * 
+   * repeated .google.cloud.documentai.v1beta2.Document.Style text_styles = 5 [deprecated = true];
+   * 
    */
+  @java.lang.Deprecated
   java.util.List
       getTextStylesOrBuilderList();
   /**
    *
    *
    * 
-   * Styles for the [Document.text][google.cloud.documentai.v1beta2.Document.text].
+   * Styles for the
+   * [Document.text][google.cloud.documentai.v1beta2.Document.text].
    * 

    *
-   * repeated .google.cloud.documentai.v1beta2.Document.Style text_styles = 5;
+   * 
+   * repeated .google.cloud.documentai.v1beta2.Document.Style text_styles = 5 [deprecated = true];
+   * 
    */
+  @java.lang.Deprecated
   com.google.cloud.documentai.v1beta2.Document.StyleOrBuilder getTextStylesOrBuilder(int index);
 
   /**
    *
    *
    * 
-   * Visual page layout for the [Document][google.cloud.documentai.v1beta2.Document].
+   * Visual page layout for the
+   * [Document][google.cloud.documentai.v1beta2.Document].
    * 

    *
    * repeated .google.cloud.documentai.v1beta2.Document.Page pages = 6;
@@ -221,7 +237,8 @@ public interface DocumentOrBuilder
    *
    *
    * 
-   * Visual page layout for the [Document][google.cloud.documentai.v1beta2.Document].
+   * Visual page layout for the
+   * [Document][google.cloud.documentai.v1beta2.Document].
    * 

    *
    * repeated .google.cloud.documentai.v1beta2.Document.Page pages = 6;
@@ -231,7 +248,8 @@ public interface DocumentOrBuilder
    *
    *
    * 
-   * Visual page layout for the [Document][google.cloud.documentai.v1beta2.Document].
+   * Visual page layout for the
+   * [Document][google.cloud.documentai.v1beta2.Document].
    * 

    *
    * repeated .google.cloud.documentai.v1beta2.Document.Page pages = 6;
@@ -241,7 +259,8 @@ public interface DocumentOrBuilder
    *
    *
    * 
-   * Visual page layout for the [Document][google.cloud.documentai.v1beta2.Document].
+   * Visual page layout for the
+   * [Document][google.cloud.documentai.v1beta2.Document].
    * 

    *
    * repeated .google.cloud.documentai.v1beta2.Document.Page pages = 6;
@@ -252,7 +271,8 @@ public interface DocumentOrBuilder
    *
    *
    * 
-   * Visual page layout for the [Document][google.cloud.documentai.v1beta2.Document].
+   * Visual page layout for the
+   * [Document][google.cloud.documentai.v1beta2.Document].
    * 

    *
    * repeated .google.cloud.documentai.v1beta2.Document.Page pages = 6;
@@ -263,8 +283,9 @@ public interface DocumentOrBuilder
    *
    *
    * 
-   * A list of entities detected on [Document.text][google.cloud.documentai.v1beta2.Document.text]. For document shards,
-   * entities in this list may cross shard boundaries.
+   * A list of entities detected on
+   * [Document.text][google.cloud.documentai.v1beta2.Document.text]. For
+   * document shards, entities in this list may cross shard boundaries.
    * 

    *
    * repeated .google.cloud.documentai.v1beta2.Document.Entity entities = 7;
@@ -274,8 +295,9 @@ public interface DocumentOrBuilder
    *
    *
    * 
-   * A list of entities detected on [Document.text][google.cloud.documentai.v1beta2.Document.text]. For document shards,
-   * entities in this list may cross shard boundaries.
+   * A list of entities detected on
+   * [Document.text][google.cloud.documentai.v1beta2.Document.text]. For
+   * document shards, entities in this list may cross shard boundaries.
    * 

    *
    * repeated .google.cloud.documentai.v1beta2.Document.Entity entities = 7;
@@ -285,8 +307,9 @@ public interface DocumentOrBuilder
    *
    *
    * 
-   * A list of entities detected on [Document.text][google.cloud.documentai.v1beta2.Document.text]. For document shards,
-   * entities in this list may cross shard boundaries.
+   * A list of entities detected on
+   * [Document.text][google.cloud.documentai.v1beta2.Document.text]. For
+   * document shards, entities in this list may cross shard boundaries.
    * 

    *
    * repeated .google.cloud.documentai.v1beta2.Document.Entity entities = 7;
@@ -296,8 +319,9 @@ public interface DocumentOrBuilder
    *
    *
    * 
-   * A list of entities detected on [Document.text][google.cloud.documentai.v1beta2.Document.text]. For document shards,
-   * entities in this list may cross shard boundaries.
+   * A list of entities detected on
+   * [Document.text][google.cloud.documentai.v1beta2.Document.text]. For
+   * document shards, entities in this list may cross shard boundaries.
    * 

    *
    * repeated .google.cloud.documentai.v1beta2.Document.Entity entities = 7;
@@ -308,8 +332,9 @@ public interface DocumentOrBuilder
    *
    *
    * 
-   * A list of entities detected on [Document.text][google.cloud.documentai.v1beta2.Document.text]. For document shards,
-   * entities in this list may cross shard boundaries.
+   * A list of entities detected on
+   * [Document.text][google.cloud.documentai.v1beta2.Document.text]. For
+   * document shards, entities in this list may cross shard boundaries.
    * 

    *
    * repeated .google.cloud.documentai.v1beta2.Document.Entity entities = 7;
@@ -320,7 +345,8 @@ public interface DocumentOrBuilder
    *
    *
    * 
-   * Relationship among [Document.entities][google.cloud.documentai.v1beta2.Document.entities].
+   * Placeholder.  Relationship among
+   * [Document.entities][google.cloud.documentai.v1beta2.Document.entities].
    * 

    *
    * repeated .google.cloud.documentai.v1beta2.Document.EntityRelation entity_relations = 8;
@@ -332,7 +358,8 @@ public interface DocumentOrBuilder
    *
    *
    * 
-   * Relationship among [Document.entities][google.cloud.documentai.v1beta2.Document.entities].
+   * Placeholder.  Relationship among
+   * [Document.entities][google.cloud.documentai.v1beta2.Document.entities].
    * 

    *
    * repeated .google.cloud.documentai.v1beta2.Document.EntityRelation entity_relations = 8;
@@ -343,7 +370,8 @@ public interface DocumentOrBuilder
    *
    *
    * 
-   * Relationship among [Document.entities][google.cloud.documentai.v1beta2.Document.entities].
+   * Placeholder.  Relationship among
+   * [Document.entities][google.cloud.documentai.v1beta2.Document.entities].
    * 

    *
    * repeated .google.cloud.documentai.v1beta2.Document.EntityRelation entity_relations = 8;
@@ -354,7 +382,8 @@ public interface DocumentOrBuilder
    *
    *
    * 
-   * Relationship among [Document.entities][google.cloud.documentai.v1beta2.Document.entities].
+   * Placeholder.  Relationship among
+   * [Document.entities][google.cloud.documentai.v1beta2.Document.entities].
    * 

    *
    * repeated .google.cloud.documentai.v1beta2.Document.EntityRelation entity_relations = 8;
@@ -366,7 +395,8 @@ public interface DocumentOrBuilder
    *
    *
    * 
-   * Relationship among [Document.entities][google.cloud.documentai.v1beta2.Document.entities].
+   * Placeholder.  Relationship among
+   * [Document.entities][google.cloud.documentai.v1beta2.Document.entities].
    * 

    *
    * repeated .google.cloud.documentai.v1beta2.Document.EntityRelation entity_relations = 8;
@@ -375,6 +405,74 @@ public interface DocumentOrBuilder
   com.google.cloud.documentai.v1beta2.Document.EntityRelationOrBuilder getEntityRelationsOrBuilder(
       int index);
 
+  /**
+   *
+   *
+   * 
+   * Placeholder.  A list of text corrections made to
+   * [Document.text][google.cloud.documentai.v1beta2.Document.text].  This is
+   * usually used for annotating corrections to OCR mistakes.  Text changes for
+   * a given revision may not overlap with each other.
+   * 

+   *
+   * repeated .google.cloud.documentai.v1beta2.Document.TextChange text_changes = 14;
+   */
+  java.util.List getTextChangesList();
+  /**
+   *
+   *
+   * 
+   * Placeholder.  A list of text corrections made to
+   * [Document.text][google.cloud.documentai.v1beta2.Document.text].  This is
+   * usually used for annotating corrections to OCR mistakes.  Text changes for
+   * a given revision may not overlap with each other.
+   * 

+   *
+   * repeated .google.cloud.documentai.v1beta2.Document.TextChange text_changes = 14;
+   */
+  com.google.cloud.documentai.v1beta2.Document.TextChange getTextChanges(int index);
+  /**
+   *
+   *
+   * 
+   * Placeholder.  A list of text corrections made to
+   * [Document.text][google.cloud.documentai.v1beta2.Document.text].  This is
+   * usually used for annotating corrections to OCR mistakes.  Text changes for
+   * a given revision may not overlap with each other.
+   * 

+   *
+   * repeated .google.cloud.documentai.v1beta2.Document.TextChange text_changes = 14;
+   */
+  int getTextChangesCount();
+  /**
+   *
+   *
+   * 
+   * Placeholder.  A list of text corrections made to
+   * [Document.text][google.cloud.documentai.v1beta2.Document.text].  This is
+   * usually used for annotating corrections to OCR mistakes.  Text changes for
+   * a given revision may not overlap with each other.
+   * 

+   *
+   * repeated .google.cloud.documentai.v1beta2.Document.TextChange text_changes = 14;
+   */
+  java.util.List
+      getTextChangesOrBuilderList();
+  /**
+   *
+   *
+   * 
+   * Placeholder.  A list of text corrections made to
+   * [Document.text][google.cloud.documentai.v1beta2.Document.text].  This is
+   * usually used for annotating corrections to OCR mistakes.  Text changes for
+   * a given revision may not overlap with each other.
+   * 

+   *
+   * repeated .google.cloud.documentai.v1beta2.Document.TextChange text_changes = 14;
+   */
+  com.google.cloud.documentai.v1beta2.Document.TextChangeOrBuilder getTextChangesOrBuilder(
+      int index);
+
   /**
    *
    *
@@ -500,5 +598,57 @@ com.google.cloud.documentai.v1beta2.Document.EntityRelationOrBuilder getEntityRe
    */
   com.google.rpc.StatusOrBuilder getErrorOrBuilder();
 
+  /**
+   *
+   *
+   * 
+   * Placeholder. Revision history of this document.
+   * 

+   *
+   * repeated .google.cloud.documentai.v1beta2.Document.Revision revisions = 13;
+   */
+  java.util.List getRevisionsList();
+  /**
+   *
+   *
+   * 
+   * Placeholder. Revision history of this document.
+   * 

+   *
+   * repeated .google.cloud.documentai.v1beta2.Document.Revision revisions = 13;
+   */
+  com.google.cloud.documentai.v1beta2.Document.Revision getRevisions(int index);
+  /**
+   *
+   *
+   * 
+   * Placeholder. Revision history of this document.
+   * 

+   *
+   * repeated .google.cloud.documentai.v1beta2.Document.Revision revisions = 13;
+   */
+  int getRevisionsCount();
+  /**
+   *
+   *
+   * 
+   * Placeholder. Revision history of this document.
+   * 

+   *
+   * repeated .google.cloud.documentai.v1beta2.Document.Revision revisions = 13;
+   */
+  java.util.List
+      getRevisionsOrBuilderList();
+  /**
+   *
+   *
+   * 
+   * Placeholder. Revision history of this document.
+   * 

+   *
+   * repeated .google.cloud.documentai.v1beta2.Document.Revision revisions = 13;
+   */
+  com.google.cloud.documentai.v1beta2.Document.RevisionOrBuilder getRevisionsOrBuilder(int index);
+
   com.google.cloud.documentai.v1beta2.Document.SourceCase getSourceCase();
 }
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/java/com/google/cloud/documentai/v1beta2/DocumentProto.java b/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/java/com/google/cloud/documentai/v1beta2/DocumentProto.java
index 68b6116eb8ca..f92e5b4514e5 100644
--- a/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/java/com/google/cloud/documentai/v1beta2/DocumentProto.java
+++ b/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/java/com/google/cloud/documentai/v1beta2/DocumentProto.java
@@ -55,6 +55,14 @@ public static void registerAllExtensions(com.google.protobuf.ExtensionRegistry r
       internal_static_google_cloud_documentai_v1beta2_Document_Page_Dimension_descriptor;
   static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
       internal_static_google_cloud_documentai_v1beta2_Document_Page_Dimension_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_documentai_v1beta2_Document_Page_Image_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_documentai_v1beta2_Document_Page_Image_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_documentai_v1beta2_Document_Page_Matrix_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_documentai_v1beta2_Document_Page_Matrix_fieldAccessorTable;
   static final com.google.protobuf.Descriptors.Descriptor
       internal_static_google_cloud_documentai_v1beta2_Document_Page_Layout_descriptor;
   static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
@@ -79,6 +87,14 @@ public static void registerAllExtensions(com.google.protobuf.ExtensionRegistry r
       internal_static_google_cloud_documentai_v1beta2_Document_Page_Token_DetectedBreak_descriptor;
   static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
       internal_static_google_cloud_documentai_v1beta2_Document_Page_Token_DetectedBreak_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_documentai_v1beta2_Document_Page_Token_StyleInfo_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_documentai_v1beta2_Document_Page_Token_StyleInfo_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_documentai_v1beta2_Document_Page_Symbol_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_documentai_v1beta2_Document_Page_Symbol_fieldAccessorTable;
   static final com.google.protobuf.Descriptors.Descriptor
       internal_static_google_cloud_documentai_v1beta2_Document_Page_VisualElement_descriptor;
   static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
@@ -99,14 +115,30 @@ public static void registerAllExtensions(com.google.protobuf.ExtensionRegistry r
       internal_static_google_cloud_documentai_v1beta2_Document_Page_FormField_descriptor;
   static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
       internal_static_google_cloud_documentai_v1beta2_Document_Page_FormField_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_documentai_v1beta2_Document_Page_DetectedBarcode_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_documentai_v1beta2_Document_Page_DetectedBarcode_fieldAccessorTable;
   static final com.google.protobuf.Descriptors.Descriptor
       internal_static_google_cloud_documentai_v1beta2_Document_Page_DetectedLanguage_descriptor;
   static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
       internal_static_google_cloud_documentai_v1beta2_Document_Page_DetectedLanguage_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_documentai_v1beta2_Document_Page_ImageQualityScores_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_documentai_v1beta2_Document_Page_ImageQualityScores_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_documentai_v1beta2_Document_Page_ImageQualityScores_DetectedDefect_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_documentai_v1beta2_Document_Page_ImageQualityScores_DetectedDefect_fieldAccessorTable;
   static final com.google.protobuf.Descriptors.Descriptor
       internal_static_google_cloud_documentai_v1beta2_Document_Entity_descriptor;
   static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
       internal_static_google_cloud_documentai_v1beta2_Document_Entity_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_documentai_v1beta2_Document_Entity_NormalizedValue_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_documentai_v1beta2_Document_Entity_NormalizedValue_fieldAccessorTable;
   static final com.google.protobuf.Descriptors.Descriptor
       internal_static_google_cloud_documentai_v1beta2_Document_EntityRelation_descriptor;
   static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
@@ -127,6 +159,26 @@ public static void registerAllExtensions(com.google.protobuf.ExtensionRegistry r
       internal_static_google_cloud_documentai_v1beta2_Document_PageAnchor_PageRef_descriptor;
   static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
       internal_static_google_cloud_documentai_v1beta2_Document_PageAnchor_PageRef_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_documentai_v1beta2_Document_Provenance_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_documentai_v1beta2_Document_Provenance_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_documentai_v1beta2_Document_Provenance_Parent_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_documentai_v1beta2_Document_Provenance_Parent_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_documentai_v1beta2_Document_Revision_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_documentai_v1beta2_Document_Revision_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_documentai_v1beta2_Document_Revision_HumanReview_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_documentai_v1beta2_Document_Revision_HumanReview_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_documentai_v1beta2_Document_TextChange_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_documentai_v1beta2_Document_TextChange_fieldAccessorTable;
 
   public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
     return descriptor;
@@ -138,27 +190,36 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
     java.lang.String[] descriptorData = {
       "\n.google/cloud/documentai/v1beta2/docume"
           + "nt.proto\022\037google.cloud.documentai.v1beta"
-          + "2\032\037google/api/field_behavior.proto\032.goog"
-          + "le/cloud/documentai/v1beta2/geometry.pro"
+          + "2\032\037google/api/field_behavior.proto\032-goog"
+          + "le/cloud/documentai/v1beta2/barcode.prot"
+          + "o\032.google/cloud/documentai/v1beta2/geome"
+          + "try.proto\032\037google/protobuf/timestamp.pro"
           + "to\032\027google/rpc/status.proto\032\027google/type"
-          + "/color.proto\"\203+\n\010Document\022\r\n\003uri\030\001 \001(\tH\000"
-          + "\022\021\n\007content\030\002 \001(\014H\000\022\021\n\tmime_type\030\003 \001(\t\022\014"
-          + "\n\004text\030\004 \001(\t\022D\n\013text_styles\030\005 \003(\0132/.goog"
-          + "le.cloud.documentai.v1beta2.Document.Sty"
-          + "le\022=\n\005pages\030\006 \003(\0132..google.cloud.documen"
-          + "tai.v1beta2.Document.Page\022B\n\010entities\030\007 "
-          + "\003(\01320.google.cloud.documentai.v1beta2.Do"
-          + "cument.Entity\022R\n\020entity_relations\030\010 \003(\0132"
-          + "8.google.cloud.documentai.v1beta2.Docume"
-          + "nt.EntityRelation\022G\n\nshard_info\030\t \001(\01323."
-          + "google.cloud.documentai.v1beta2.Document"
-          + ".ShardInfo\022?\n\006labels\030\013 \003(\0132/.google.clou"
-          + "d.documentai.v1beta2.Document.Label\022!\n\005e"
-          + "rror\030\n \001(\0132\022.google.rpc.Status\032J\n\tShardI"
+          + "/color.proto\032\026google/type/date.proto\032\032go"
+          + "ogle/type/datetime.proto\032\027google/type/mo"
+          + "ney.proto\032 google/type/postal_address.pr"
+          + "oto\"\252I\n\010Document\022\023\n\003uri\030\001 \001(\tB\004\342A\001\001H\000\022\027\n"
+          + "\007content\030\002 \001(\014B\004\342A\001\001H\000\022\021\n\tmime_type\030\003 \001("
+          + "\t\022\022\n\004text\030\004 \001(\tB\004\342A\001\001\022H\n\013text_styles\030\005 \003"
+          + "(\0132/.google.cloud.documentai.v1beta2.Doc"
+          + "ument.StyleB\002\030\001\022=\n\005pages\030\006 \003(\0132..google."
+          + "cloud.documentai.v1beta2.Document.Page\022B"
+          + "\n\010entities\030\007 \003(\01320.google.cloud.document"
+          + "ai.v1beta2.Document.Entity\022R\n\020entity_rel"
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     descriptor =
         com.google.protobuf.Descriptors.FileDescriptor.internalBuildGeneratedFileFrom(
             descriptorData,
             new com.google.protobuf.Descriptors.FileDescriptor[] {
               com.google.api.FieldBehaviorProto.getDescriptor(),
+              com.google.cloud.documentai.v1beta2.BarcodeProto.getDescriptor(),
               com.google.cloud.documentai.v1beta2.GeometryProto.getDescriptor(),
+              com.google.protobuf.TimestampProto.getDescriptor(),
               com.google.rpc.StatusProto.getDescriptor(),
               com.google.type.ColorProto.getDescriptor(),
+              com.google.type.DateProto.getDescriptor(),
+              com.google.type.DateTimeProto.getDescriptor(),
+              com.google.type.MoneyProto.getDescriptor(),
+              com.google.type.PostalAddressProto.getDescriptor(),
             });
     internal_static_google_cloud_documentai_v1beta2_Document_descriptor =
         getDescriptor().getMessageTypes().get(0);
@@ -310,9 +469,11 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
               "Pages",
               "Entities",
               "EntityRelations",
+              "TextChanges",
               "ShardInfo",
               "Labels",
               "Error",
+              "Revisions",
               "Source",
             });
     internal_static_google_cloud_documentai_v1beta2_Document_ShardInfo_descriptor =
@@ -344,6 +505,7 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
               "TextStyle",
               "TextDecoration",
               "FontSize",
+              "FontFamily",
             });
     internal_static_google_cloud_documentai_v1beta2_Document_Style_FontSize_descriptor =
         internal_static_google_cloud_documentai_v1beta2_Document_Style_descriptor
@@ -362,6 +524,8 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
             internal_static_google_cloud_documentai_v1beta2_Document_Page_descriptor,
             new java.lang.String[] {
               "PageNumber",
+              "Image",
+              "Transforms",
               "Dimension",
               "Layout",
               "DetectedLanguages",
@@ -372,6 +536,10 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
               "VisualElements",
               "Tables",
               "FormFields",
+              "Symbols",
+              "DetectedBarcodes",
+              "ImageQualityScores",
+              "Provenance",
             });
     internal_static_google_cloud_documentai_v1beta2_Document_Page_Dimension_descriptor =
         internal_static_google_cloud_documentai_v1beta2_Document_Page_descriptor
@@ -383,55 +551,75 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
             new java.lang.String[] {
               "Width", "Height", "Unit",
             });
-    internal_static_google_cloud_documentai_v1beta2_Document_Page_Layout_descriptor =
+    internal_static_google_cloud_documentai_v1beta2_Document_Page_Image_descriptor =
         internal_static_google_cloud_documentai_v1beta2_Document_Page_descriptor
             .getNestedTypes()
             .get(1);
+    internal_static_google_cloud_documentai_v1beta2_Document_Page_Image_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_documentai_v1beta2_Document_Page_Image_descriptor,
+            new java.lang.String[] {
+              "Content", "MimeType", "Width", "Height",
+            });
+    internal_static_google_cloud_documentai_v1beta2_Document_Page_Matrix_descriptor =
+        internal_static_google_cloud_documentai_v1beta2_Document_Page_descriptor
+            .getNestedTypes()
+            .get(2);
+    internal_static_google_cloud_documentai_v1beta2_Document_Page_Matrix_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_documentai_v1beta2_Document_Page_Matrix_descriptor,
+            new java.lang.String[] {
+              "Rows", "Cols", "Type", "Data",
+            });
+    internal_static_google_cloud_documentai_v1beta2_Document_Page_Layout_descriptor =
+        internal_static_google_cloud_documentai_v1beta2_Document_Page_descriptor
+            .getNestedTypes()
+            .get(3);
     internal_static_google_cloud_documentai_v1beta2_Document_Page_Layout_fieldAccessorTable =
         new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
             internal_static_google_cloud_documentai_v1beta2_Document_Page_Layout_descriptor,
             new java.lang.String[] {
-              "TextAnchor", "Confidence", "BoundingPoly", "Orientation", "Id",
+              "TextAnchor", "Confidence", "BoundingPoly", "Orientation",
             });
     internal_static_google_cloud_documentai_v1beta2_Document_Page_Block_descriptor =
         internal_static_google_cloud_documentai_v1beta2_Document_Page_descriptor
             .getNestedTypes()
-            .get(2);
+            .get(4);
     internal_static_google_cloud_documentai_v1beta2_Document_Page_Block_fieldAccessorTable =
         new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
             internal_static_google_cloud_documentai_v1beta2_Document_Page_Block_descriptor,
             new java.lang.String[] {
-              "Layout", "DetectedLanguages",
+              "Layout", "DetectedLanguages", "Provenance",
             });
     internal_static_google_cloud_documentai_v1beta2_Document_Page_Paragraph_descriptor =
         internal_static_google_cloud_documentai_v1beta2_Document_Page_descriptor
             .getNestedTypes()
-            .get(3);
+            .get(5);
     internal_static_google_cloud_documentai_v1beta2_Document_Page_Paragraph_fieldAccessorTable =
         new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
             internal_static_google_cloud_documentai_v1beta2_Document_Page_Paragraph_descriptor,
             new java.lang.String[] {
-              "Layout", "DetectedLanguages",
+              "Layout", "DetectedLanguages", "Provenance",
             });
     internal_static_google_cloud_documentai_v1beta2_Document_Page_Line_descriptor =
         internal_static_google_cloud_documentai_v1beta2_Document_Page_descriptor
             .getNestedTypes()
-            .get(4);
+            .get(6);
     internal_static_google_cloud_documentai_v1beta2_Document_Page_Line_fieldAccessorTable =
         new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
             internal_static_google_cloud_documentai_v1beta2_Document_Page_Line_descriptor,
             new java.lang.String[] {
-              "Layout", "DetectedLanguages",
+              "Layout", "DetectedLanguages", "Provenance",
             });
     internal_static_google_cloud_documentai_v1beta2_Document_Page_Token_descriptor =
         internal_static_google_cloud_documentai_v1beta2_Document_Page_descriptor
             .getNestedTypes()
-            .get(5);
+            .get(7);
     internal_static_google_cloud_documentai_v1beta2_Document_Page_Token_fieldAccessorTable =
         new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
             internal_static_google_cloud_documentai_v1beta2_Document_Page_Token_descriptor,
             new java.lang.String[] {
-              "Layout", "DetectedBreak", "DetectedLanguages",
+              "Layout", "DetectedBreak", "DetectedLanguages", "Provenance", "StyleInfo",
             });
     internal_static_google_cloud_documentai_v1beta2_Document_Page_Token_DetectedBreak_descriptor =
         internal_static_google_cloud_documentai_v1beta2_Document_Page_Token_descriptor
@@ -443,10 +631,44 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
             new java.lang.String[] {
               "Type",
             });
+    internal_static_google_cloud_documentai_v1beta2_Document_Page_Token_StyleInfo_descriptor =
+        internal_static_google_cloud_documentai_v1beta2_Document_Page_Token_descriptor
+            .getNestedTypes()
+            .get(1);
+    internal_static_google_cloud_documentai_v1beta2_Document_Page_Token_StyleInfo_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_documentai_v1beta2_Document_Page_Token_StyleInfo_descriptor,
+            new java.lang.String[] {
+              "FontSize",
+              "PixelFontSize",
+              "LetterSpacing",
+              "FontType",
+              "Bold",
+              "Italic",
+              "Underlined",
+              "Strikeout",
+              "Subscript",
+              "Superscript",
+              "Smallcaps",
+              "FontWeight",
+              "Handwritten",
+              "TextColor",
+              "BackgroundColor",
+            });
+    internal_static_google_cloud_documentai_v1beta2_Document_Page_Symbol_descriptor =
+        internal_static_google_cloud_documentai_v1beta2_Document_Page_descriptor
+            .getNestedTypes()
+            .get(8);
+    internal_static_google_cloud_documentai_v1beta2_Document_Page_Symbol_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_documentai_v1beta2_Document_Page_Symbol_descriptor,
+            new java.lang.String[] {
+              "Layout", "DetectedLanguages",
+            });
     internal_static_google_cloud_documentai_v1beta2_Document_Page_VisualElement_descriptor =
         internal_static_google_cloud_documentai_v1beta2_Document_Page_descriptor
             .getNestedTypes()
-            .get(6);
+            .get(9);
     internal_static_google_cloud_documentai_v1beta2_Document_Page_VisualElement_fieldAccessorTable =
         new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
             internal_static_google_cloud_documentai_v1beta2_Document_Page_VisualElement_descriptor,
@@ -456,12 +678,12 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
     internal_static_google_cloud_documentai_v1beta2_Document_Page_Table_descriptor =
         internal_static_google_cloud_documentai_v1beta2_Document_Page_descriptor
             .getNestedTypes()
-            .get(7);
+            .get(10);
     internal_static_google_cloud_documentai_v1beta2_Document_Page_Table_fieldAccessorTable =
         new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
             internal_static_google_cloud_documentai_v1beta2_Document_Page_Table_descriptor,
             new java.lang.String[] {
-              "Layout", "HeaderRows", "BodyRows", "DetectedLanguages",
+              "Layout", "HeaderRows", "BodyRows", "DetectedLanguages", "Provenance",
             });
     internal_static_google_cloud_documentai_v1beta2_Document_Page_Table_TableRow_descriptor =
         internal_static_google_cloud_documentai_v1beta2_Document_Page_Table_descriptor
@@ -486,7 +708,7 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
     internal_static_google_cloud_documentai_v1beta2_Document_Page_FormField_descriptor =
         internal_static_google_cloud_documentai_v1beta2_Document_Page_descriptor
             .getNestedTypes()
-            .get(8);
+            .get(11);
     internal_static_google_cloud_documentai_v1beta2_Document_Page_FormField_fieldAccessorTable =
         new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
             internal_static_google_cloud_documentai_v1beta2_Document_Page_FormField_descriptor,
@@ -498,24 +720,83 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
               "ValueType",
               "CorrectedKeyText",
               "CorrectedValueText",
+              "Provenance",
+            });
+    internal_static_google_cloud_documentai_v1beta2_Document_Page_DetectedBarcode_descriptor =
+        internal_static_google_cloud_documentai_v1beta2_Document_Page_descriptor
+            .getNestedTypes()
+            .get(12);
+    internal_static_google_cloud_documentai_v1beta2_Document_Page_DetectedBarcode_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_documentai_v1beta2_Document_Page_DetectedBarcode_descriptor,
+            new java.lang.String[] {
+              "Layout", "Barcode",
             });
     internal_static_google_cloud_documentai_v1beta2_Document_Page_DetectedLanguage_descriptor =
         internal_static_google_cloud_documentai_v1beta2_Document_Page_descriptor
             .getNestedTypes()
-            .get(9);
+            .get(13);
     internal_static_google_cloud_documentai_v1beta2_Document_Page_DetectedLanguage_fieldAccessorTable =
         new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
             internal_static_google_cloud_documentai_v1beta2_Document_Page_DetectedLanguage_descriptor,
             new java.lang.String[] {
               "LanguageCode", "Confidence",
             });
+    internal_static_google_cloud_documentai_v1beta2_Document_Page_ImageQualityScores_descriptor =
+        internal_static_google_cloud_documentai_v1beta2_Document_Page_descriptor
+            .getNestedTypes()
+            .get(14);
+    internal_static_google_cloud_documentai_v1beta2_Document_Page_ImageQualityScores_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_documentai_v1beta2_Document_Page_ImageQualityScores_descriptor,
+            new java.lang.String[] {
+              "QualityScore", "DetectedDefects",
+            });
+    internal_static_google_cloud_documentai_v1beta2_Document_Page_ImageQualityScores_DetectedDefect_descriptor =
+        internal_static_google_cloud_documentai_v1beta2_Document_Page_ImageQualityScores_descriptor
+            .getNestedTypes()
+            .get(0);
+    internal_static_google_cloud_documentai_v1beta2_Document_Page_ImageQualityScores_DetectedDefect_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_documentai_v1beta2_Document_Page_ImageQualityScores_DetectedDefect_descriptor,
+            new java.lang.String[] {
+              "Type", "Confidence",
+            });
     internal_static_google_cloud_documentai_v1beta2_Document_Entity_descriptor =
         internal_static_google_cloud_documentai_v1beta2_Document_descriptor.getNestedTypes().get(4);
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             new java.lang.String[] {
-              "TextAnchor", "Type", "MentionText", "MentionId", "Confidence", "PageAnchor", "Id",
+              "TextAnchor",
+              "Type",
+              "MentionText",
+              "MentionId",
+              "Confidence",
+              "PageAnchor",
+              "Id",
+              "NormalizedValue",
+              "Properties",
+              "Provenance",
+              "Redacted",
+            });
+    internal_static_google_cloud_documentai_v1beta2_Document_Entity_NormalizedValue_descriptor =
+        internal_static_google_cloud_documentai_v1beta2_Document_Entity_descriptor
+            .getNestedTypes()
+            .get(0);
+    internal_static_google_cloud_documentai_v1beta2_Document_Entity_NormalizedValue_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_documentai_v1beta2_Document_Entity_NormalizedValue_descriptor,
+            new java.lang.String[] {
+              "MoneyValue",
+              "DateValue",
+              "DatetimeValue",
+              "AddressValue",
+              "BooleanValue",
+              "IntegerValue",
+              "FloatValue",
+              "Text",
+              "StructuredValue",
             });
     internal_static_google_cloud_documentai_v1beta2_Document_EntityRelation_descriptor =
         internal_static_google_cloud_documentai_v1beta2_Document_descriptor.getNestedTypes().get(5);
@@ -559,7 +840,60 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
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             internal_static_google_cloud_documentai_v1beta2_Document_PageAnchor_PageRef_descriptor,
             new java.lang.String[] {
-              "Page", "LayoutType", "LayoutId",
+              "Page", "LayoutType", "LayoutId", "BoundingPoly", "Confidence",
+            });
+    internal_static_google_cloud_documentai_v1beta2_Document_Provenance_descriptor =
+        internal_static_google_cloud_documentai_v1beta2_Document_descriptor.getNestedTypes().get(8);
+    internal_static_google_cloud_documentai_v1beta2_Document_Provenance_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_documentai_v1beta2_Document_Provenance_descriptor,
+            new java.lang.String[] {
+              "Revision", "Id", "Parents", "Type",
+            });
+    internal_static_google_cloud_documentai_v1beta2_Document_Provenance_Parent_descriptor =
+        internal_static_google_cloud_documentai_v1beta2_Document_Provenance_descriptor
+            .getNestedTypes()
+            .get(0);
+    internal_static_google_cloud_documentai_v1beta2_Document_Provenance_Parent_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_documentai_v1beta2_Document_Provenance_Parent_descriptor,
+            new java.lang.String[] {
+              "Revision", "Index", "Id",
+            });
+    internal_static_google_cloud_documentai_v1beta2_Document_Revision_descriptor =
+        internal_static_google_cloud_documentai_v1beta2_Document_descriptor.getNestedTypes().get(9);
+    internal_static_google_cloud_documentai_v1beta2_Document_Revision_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_documentai_v1beta2_Document_Revision_descriptor,
+            new java.lang.String[] {
+              "Agent",
+              "Processor",
+              "Id",
+              "Parent",
+              "ParentIds",
+              "CreateTime",
+              "HumanReview",
+              "Source",
+            });
+    internal_static_google_cloud_documentai_v1beta2_Document_Revision_HumanReview_descriptor =
+        internal_static_google_cloud_documentai_v1beta2_Document_Revision_descriptor
+            .getNestedTypes()
+            .get(0);
+    internal_static_google_cloud_documentai_v1beta2_Document_Revision_HumanReview_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_documentai_v1beta2_Document_Revision_HumanReview_descriptor,
+            new java.lang.String[] {
+              "State", "StateMessage",
+            });
+    internal_static_google_cloud_documentai_v1beta2_Document_TextChange_descriptor =
+        internal_static_google_cloud_documentai_v1beta2_Document_descriptor
+            .getNestedTypes()
+            .get(10);
+    internal_static_google_cloud_documentai_v1beta2_Document_TextChange_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_documentai_v1beta2_Document_TextChange_descriptor,
+            new java.lang.String[] {
+              "TextAnchor", "ChangedText", "Provenance",
             });
     com.google.protobuf.ExtensionRegistry registry =
         com.google.protobuf.ExtensionRegistry.newInstance();
@@ -567,9 +901,15 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
     com.google.protobuf.Descriptors.FileDescriptor.internalUpdateFileDescriptor(
         descriptor, registry);
     com.google.api.FieldBehaviorProto.getDescriptor();
+    com.google.cloud.documentai.v1beta2.BarcodeProto.getDescriptor();
     com.google.cloud.documentai.v1beta2.GeometryProto.getDescriptor();
+    com.google.protobuf.TimestampProto.getDescriptor();
     com.google.rpc.StatusProto.getDescriptor();
     com.google.type.ColorProto.getDescriptor();
+    com.google.type.DateProto.getDescriptor();
+    com.google.type.DateTimeProto.getDescriptor();
+    com.google.type.MoneyProto.getDescriptor();
+    com.google.type.PostalAddressProto.getDescriptor();
   }
 
   // @@protoc_insertion_point(outer_class_scope)
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/java/com/google/cloud/documentai/v1beta2/FormExtractionParams.java b/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/java/com/google/cloud/documentai/v1beta2/FormExtractionParams.java
index f09adb27ca20..faf75dc8df29 100644
--- a/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/java/com/google/cloud/documentai/v1beta2/FormExtractionParams.java
+++ b/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/java/com/google/cloud/documentai/v1beta2/FormExtractionParams.java
@@ -89,18 +89,7 @@ public boolean getEnabled() {
    *
    *
    * 
-   * User can provide pairs of (key text, value type) to improve the parsing
-   * result.
-   *
-   * For example, if a document has a field called "Date" that holds a date
-   * value and a field called "Amount" that may hold either a currency value
-   * (e.g., "$500.00") or a simple number value (e.g., "20"), you could use the
-   * following hints: [ {"key": "Date", value_types: [ "DATE"]}, {"key":
-   * "Amount", "value_types": [ "PRICE", "NUMBER" ]} ]
-   *
-   * If the value type is unknown, but you want to provide hints for the keys,
-   * you can leave the value_types field blank. e.g. {"key": "Date",
-   * "value_types": []}
+   * Reserved for future use.
    * 

    *
    * repeated .google.cloud.documentai.v1beta2.KeyValuePairHint key_value_pair_hints = 2;
@@ -115,18 +104,7 @@ public boolean getEnabled() {
    *
    *
    * 
-   * User can provide pairs of (key text, value type) to improve the parsing
-   * result.
-   *
-   * For example, if a document has a field called "Date" that holds a date
-   * value and a field called "Amount" that may hold either a currency value
-   * (e.g., "$500.00") or a simple number value (e.g., "20"), you could use the
-   * following hints: [ {"key": "Date", value_types: [ "DATE"]}, {"key":
-   * "Amount", "value_types": [ "PRICE", "NUMBER" ]} ]
-   *
-   * If the value type is unknown, but you want to provide hints for the keys,
-   * you can leave the value_types field blank. e.g. {"key": "Date",
-   * "value_types": []}
+   * Reserved for future use.
    * 

    *
    * repeated .google.cloud.documentai.v1beta2.KeyValuePairHint key_value_pair_hints = 2;
@@ -141,18 +119,7 @@ public boolean getEnabled() {
    *
    *
    * 
-   * User can provide pairs of (key text, value type) to improve the parsing
-   * result.
-   *
-   * For example, if a document has a field called "Date" that holds a date
-   * value and a field called "Amount" that may hold either a currency value
-   * (e.g., "$500.00") or a simple number value (e.g., "20"), you could use the
-   * following hints: [ {"key": "Date", value_types: [ "DATE"]}, {"key":
-   * "Amount", "value_types": [ "PRICE", "NUMBER" ]} ]
-   *
-   * If the value type is unknown, but you want to provide hints for the keys,
-   * you can leave the value_types field blank. e.g. {"key": "Date",
-   * "value_types": []}
+   * Reserved for future use.
    * 

    *
    * repeated .google.cloud.documentai.v1beta2.KeyValuePairHint key_value_pair_hints = 2;
@@ -166,18 +133,7 @@ public int getKeyValuePairHintsCount() {
    *
    *
    * 
-   * User can provide pairs of (key text, value type) to improve the parsing
-   * result.
-   *
-   * For example, if a document has a field called "Date" that holds a date
-   * value and a field called "Amount" that may hold either a currency value
-   * (e.g., "$500.00") or a simple number value (e.g., "20"), you could use the
-   * following hints: [ {"key": "Date", value_types: [ "DATE"]}, {"key":
-   * "Amount", "value_types": [ "PRICE", "NUMBER" ]} ]
-   *
-   * If the value type is unknown, but you want to provide hints for the keys,
-   * you can leave the value_types field blank. e.g. {"key": "Date",
-   * "value_types": []}
+   * Reserved for future use.
    * 

    *
    * repeated .google.cloud.documentai.v1beta2.KeyValuePairHint key_value_pair_hints = 2;
@@ -191,18 +147,7 @@ public com.google.cloud.documentai.v1beta2.KeyValuePairHint getKeyValuePairHints
    *
    *
    * 
-   * User can provide pairs of (key text, value type) to improve the parsing
-   * result.
-   *
-   * For example, if a document has a field called "Date" that holds a date
-   * value and a field called "Amount" that may hold either a currency value
-   * (e.g., "$500.00") or a simple number value (e.g., "20"), you could use the
-   * following hints: [ {"key": "Date", value_types: [ "DATE"]}, {"key":
-   * "Amount", "value_types": [ "PRICE", "NUMBER" ]} ]
-   *
-   * If the value type is unknown, but you want to provide hints for the keys,
-   * you can leave the value_types field blank. e.g. {"key": "Date",
-   * "value_types": []}
+   * Reserved for future use.
    * 

    *
    * repeated .google.cloud.documentai.v1beta2.KeyValuePairHint key_value_pair_hints = 2;
@@ -224,7 +169,7 @@ public com.google.cloud.documentai.v1beta2.KeyValuePairHint getKeyValuePairHints
    * 
    * Model version of the form extraction system. Default is
    * "builtin/stable". Specify "builtin/latest" for the latest model.
-   * For custom form models, specify: “custom/{model_name}". Model name
+   * For custom form models, specify: "custom/{model_name}". Model name
    * format is "bucket_name/path/to/modeldir" corresponding to
    * "gs://bucket_name/path/to/modeldir" where annotated examples are stored.
    * 

@@ -251,7 +196,7 @@ public java.lang.String getModelVersion() {
    * 
    * Model version of the form extraction system. Default is
    * "builtin/stable". Specify "builtin/latest" for the latest model.
-   * For custom form models, specify: “custom/{model_name}". Model name
+   * For custom form models, specify: "custom/{model_name}". Model name
    * format is "bucket_name/path/to/modeldir" corresponding to
    * "gs://bucket_name/path/to/modeldir" where annotated examples are stored.
    * 

@@ -787,18 +732,7 @@ private void ensureKeyValuePairHintsIsMutable() {
      *
      *
      * 
-     * User can provide pairs of (key text, value type) to improve the parsing
-     * result.
-     *
-     * For example, if a document has a field called "Date" that holds a date
-     * value and a field called "Amount" that may hold either a currency value
-     * (e.g., "$500.00") or a simple number value (e.g., "20"), you could use the
-     * following hints: [ {"key": "Date", value_types: [ "DATE"]}, {"key":
-     * "Amount", "value_types": [ "PRICE", "NUMBER" ]} ]
-     *
-     * If the value type is unknown, but you want to provide hints for the keys,
-     * you can leave the value_types field blank. e.g. {"key": "Date",
-     * "value_types": []}
+     * Reserved for future use.
      * 

      *
      * repeated .google.cloud.documentai.v1beta2.KeyValuePairHint key_value_pair_hints = 2;
@@ -816,18 +750,7 @@ private void ensureKeyValuePairHintsIsMutable() {
      *
      *
      * 
-     * User can provide pairs of (key text, value type) to improve the parsing
-     * result.
-     *
-     * For example, if a document has a field called "Date" that holds a date
-     * value and a field called "Amount" that may hold either a currency value
-     * (e.g., "$500.00") or a simple number value (e.g., "20"), you could use the
-     * following hints: [ {"key": "Date", value_types: [ "DATE"]}, {"key":
-     * "Amount", "value_types": [ "PRICE", "NUMBER" ]} ]
-     *
-     * If the value type is unknown, but you want to provide hints for the keys,
-     * you can leave the value_types field blank. e.g. {"key": "Date",
-     * "value_types": []}
+     * Reserved for future use.
      * 

      *
      * repeated .google.cloud.documentai.v1beta2.KeyValuePairHint key_value_pair_hints = 2;
@@ -844,18 +767,7 @@ public int getKeyValuePairHintsCount() {
      *
      *
      * 
-     * User can provide pairs of (key text, value type) to improve the parsing
-     * result.
-     *
-     * For example, if a document has a field called "Date" that holds a date
-     * value and a field called "Amount" that may hold either a currency value
-     * (e.g., "$500.00") or a simple number value (e.g., "20"), you could use the
-     * following hints: [ {"key": "Date", value_types: [ "DATE"]}, {"key":
-     * "Amount", "value_types": [ "PRICE", "NUMBER" ]} ]
-     *
-     * If the value type is unknown, but you want to provide hints for the keys,
-     * you can leave the value_types field blank. e.g. {"key": "Date",
-     * "value_types": []}
+     * Reserved for future use.
      * 

      *
      * repeated .google.cloud.documentai.v1beta2.KeyValuePairHint key_value_pair_hints = 2;
@@ -872,18 +784,7 @@ public com.google.cloud.documentai.v1beta2.KeyValuePairHint getKeyValuePairHints
      *
      *
      * 
-     * User can provide pairs of (key text, value type) to improve the parsing
-     * result.
-     *
-     * For example, if a document has a field called "Date" that holds a date
-     * value and a field called "Amount" that may hold either a currency value
-     * (e.g., "$500.00") or a simple number value (e.g., "20"), you could use the
-     * following hints: [ {"key": "Date", value_types: [ "DATE"]}, {"key":
-     * "Amount", "value_types": [ "PRICE", "NUMBER" ]} ]
-     *
-     * If the value type is unknown, but you want to provide hints for the keys,
-     * you can leave the value_types field blank. e.g. {"key": "Date",
-     * "value_types": []}
+     * Reserved for future use.
      * 

      *
      * repeated .google.cloud.documentai.v1beta2.KeyValuePairHint key_value_pair_hints = 2;
@@ -907,18 +808,7 @@ public Builder setKeyValuePairHints(
      *
      *
      * 
-     * User can provide pairs of (key text, value type) to improve the parsing
-     * result.
-     *
-     * For example, if a document has a field called "Date" that holds a date
-     * value and a field called "Amount" that may hold either a currency value
-     * (e.g., "$500.00") or a simple number value (e.g., "20"), you could use the
-     * following hints: [ {"key": "Date", value_types: [ "DATE"]}, {"key":
-     * "Amount", "value_types": [ "PRICE", "NUMBER" ]} ]
-     *
-     * If the value type is unknown, but you want to provide hints for the keys,
-     * you can leave the value_types field blank. e.g. {"key": "Date",
-     * "value_types": []}
+     * Reserved for future use.
      * 

      *
      * repeated .google.cloud.documentai.v1beta2.KeyValuePairHint key_value_pair_hints = 2;
@@ -939,18 +829,7 @@ public Builder setKeyValuePairHints(
      *
      *
      * 
-     * User can provide pairs of (key text, value type) to improve the parsing
-     * result.
-     *
-     * For example, if a document has a field called "Date" that holds a date
-     * value and a field called "Amount" that may hold either a currency value
-     * (e.g., "$500.00") or a simple number value (e.g., "20"), you could use the
-     * following hints: [ {"key": "Date", value_types: [ "DATE"]}, {"key":
-     * "Amount", "value_types": [ "PRICE", "NUMBER" ]} ]
-     *
-     * If the value type is unknown, but you want to provide hints for the keys,
-     * you can leave the value_types field blank. e.g. {"key": "Date",
-     * "value_types": []}
+     * Reserved for future use.
      * 

      *
      * repeated .google.cloud.documentai.v1beta2.KeyValuePairHint key_value_pair_hints = 2;
@@ -974,18 +853,7 @@ public Builder addKeyValuePairHints(
      *
      *
      * 
-     * User can provide pairs of (key text, value type) to improve the parsing
-     * result.
-     *
-     * For example, if a document has a field called "Date" that holds a date
-     * value and a field called "Amount" that may hold either a currency value
-     * (e.g., "$500.00") or a simple number value (e.g., "20"), you could use the
-     * following hints: [ {"key": "Date", value_types: [ "DATE"]}, {"key":
-     * "Amount", "value_types": [ "PRICE", "NUMBER" ]} ]
-     *
-     * If the value type is unknown, but you want to provide hints for the keys,
-     * you can leave the value_types field blank. e.g. {"key": "Date",
-     * "value_types": []}
+     * Reserved for future use.
      * 

      *
      * repeated .google.cloud.documentai.v1beta2.KeyValuePairHint key_value_pair_hints = 2;
@@ -1009,18 +877,7 @@ public Builder addKeyValuePairHints(
      *
      *
      * 
-     * User can provide pairs of (key text, value type) to improve the parsing
-     * result.
-     *
-     * For example, if a document has a field called "Date" that holds a date
-     * value and a field called "Amount" that may hold either a currency value
-     * (e.g., "$500.00") or a simple number value (e.g., "20"), you could use the
-     * following hints: [ {"key": "Date", value_types: [ "DATE"]}, {"key":
-     * "Amount", "value_types": [ "PRICE", "NUMBER" ]} ]
-     *
-     * If the value type is unknown, but you want to provide hints for the keys,
-     * you can leave the value_types field blank. e.g. {"key": "Date",
-     * "value_types": []}
+     * Reserved for future use.
      * 

      *
      * repeated .google.cloud.documentai.v1beta2.KeyValuePairHint key_value_pair_hints = 2;
@@ -1041,18 +898,7 @@ public Builder addKeyValuePairHints(
      *
      *
      * 
-     * User can provide pairs of (key text, value type) to improve the parsing
-     * result.
-     *
-     * For example, if a document has a field called "Date" that holds a date
-     * value and a field called "Amount" that may hold either a currency value
-     * (e.g., "$500.00") or a simple number value (e.g., "20"), you could use the
-     * following hints: [ {"key": "Date", value_types: [ "DATE"]}, {"key":
-     * "Amount", "value_types": [ "PRICE", "NUMBER" ]} ]
-     *
-     * If the value type is unknown, but you want to provide hints for the keys,
-     * you can leave the value_types field blank. e.g. {"key": "Date",
-     * "value_types": []}
+     * Reserved for future use.
      * 

      *
      * repeated .google.cloud.documentai.v1beta2.KeyValuePairHint key_value_pair_hints = 2;
@@ -1073,18 +919,7 @@ public Builder addKeyValuePairHints(
      *
      *
      * 
-     * User can provide pairs of (key text, value type) to improve the parsing
-     * result.
-     *
-     * For example, if a document has a field called "Date" that holds a date
-     * value and a field called "Amount" that may hold either a currency value
-     * (e.g., "$500.00") or a simple number value (e.g., "20"), you could use the
-     * following hints: [ {"key": "Date", value_types: [ "DATE"]}, {"key":
-     * "Amount", "value_types": [ "PRICE", "NUMBER" ]} ]
-     *
-     * If the value type is unknown, but you want to provide hints for the keys,
-     * you can leave the value_types field blank. e.g. {"key": "Date",
-     * "value_types": []}
+     * Reserved for future use.
      * 

      *
      * repeated .google.cloud.documentai.v1beta2.KeyValuePairHint key_value_pair_hints = 2;
@@ -1105,18 +940,7 @@ public Builder addAllKeyValuePairHints(
      *
      *
      * 
-     * User can provide pairs of (key text, value type) to improve the parsing
-     * result.
-     *
-     * For example, if a document has a field called "Date" that holds a date
-     * value and a field called "Amount" that may hold either a currency value
-     * (e.g., "$500.00") or a simple number value (e.g., "20"), you could use the
-     * following hints: [ {"key": "Date", value_types: [ "DATE"]}, {"key":
-     * "Amount", "value_types": [ "PRICE", "NUMBER" ]} ]
-     *
-     * If the value type is unknown, but you want to provide hints for the keys,
-     * you can leave the value_types field blank. e.g. {"key": "Date",
-     * "value_types": []}
+     * Reserved for future use.
      * 

      *
      * repeated .google.cloud.documentai.v1beta2.KeyValuePairHint key_value_pair_hints = 2;
@@ -1136,18 +960,7 @@ public Builder clearKeyValuePairHints() {
      *
      *
      * 
-     * User can provide pairs of (key text, value type) to improve the parsing
-     * result.
-     *
-     * For example, if a document has a field called "Date" that holds a date
-     * value and a field called "Amount" that may hold either a currency value
-     * (e.g., "$500.00") or a simple number value (e.g., "20"), you could use the
-     * following hints: [ {"key": "Date", value_types: [ "DATE"]}, {"key":
-     * "Amount", "value_types": [ "PRICE", "NUMBER" ]} ]
-     *
-     * If the value type is unknown, but you want to provide hints for the keys,
-     * you can leave the value_types field blank. e.g. {"key": "Date",
-     * "value_types": []}
+     * Reserved for future use.
      * 

      *
      * repeated .google.cloud.documentai.v1beta2.KeyValuePairHint key_value_pair_hints = 2;
@@ -1167,18 +980,7 @@ public Builder removeKeyValuePairHints(int index) {
      *
      *
      * 
-     * User can provide pairs of (key text, value type) to improve the parsing
-     * result.
-     *
-     * For example, if a document has a field called "Date" that holds a date
-     * value and a field called "Amount" that may hold either a currency value
-     * (e.g., "$500.00") or a simple number value (e.g., "20"), you could use the
-     * following hints: [ {"key": "Date", value_types: [ "DATE"]}, {"key":
-     * "Amount", "value_types": [ "PRICE", "NUMBER" ]} ]
-     *
-     * If the value type is unknown, but you want to provide hints for the keys,
-     * you can leave the value_types field blank. e.g. {"key": "Date",
-     * "value_types": []}
+     * Reserved for future use.
      * 

      *
      * repeated .google.cloud.documentai.v1beta2.KeyValuePairHint key_value_pair_hints = 2;
@@ -1192,18 +994,7 @@ public com.google.cloud.documentai.v1beta2.KeyValuePairHint.Builder getKeyValueP
      *
      *
      * 
-     * User can provide pairs of (key text, value type) to improve the parsing
-     * result.
-     *
-     * For example, if a document has a field called "Date" that holds a date
-     * value and a field called "Amount" that may hold either a currency value
-     * (e.g., "$500.00") or a simple number value (e.g., "20"), you could use the
-     * following hints: [ {"key": "Date", value_types: [ "DATE"]}, {"key":
-     * "Amount", "value_types": [ "PRICE", "NUMBER" ]} ]
-     *
-     * If the value type is unknown, but you want to provide hints for the keys,
-     * you can leave the value_types field blank. e.g. {"key": "Date",
-     * "value_types": []}
+     * Reserved for future use.
      * 

      *
      * repeated .google.cloud.documentai.v1beta2.KeyValuePairHint key_value_pair_hints = 2;
@@ -1221,18 +1012,7 @@ public com.google.cloud.documentai.v1beta2.KeyValuePairHint.Builder getKeyValueP
      *
      *
      * 
-     * User can provide pairs of (key text, value type) to improve the parsing
-     * result.
-     *
-     * For example, if a document has a field called "Date" that holds a date
-     * value and a field called "Amount" that may hold either a currency value
-     * (e.g., "$500.00") or a simple number value (e.g., "20"), you could use the
-     * following hints: [ {"key": "Date", value_types: [ "DATE"]}, {"key":
-     * "Amount", "value_types": [ "PRICE", "NUMBER" ]} ]
-     *
-     * If the value type is unknown, but you want to provide hints for the keys,
-     * you can leave the value_types field blank. e.g. {"key": "Date",
-     * "value_types": []}
+     * Reserved for future use.
      * 

      *
      * repeated .google.cloud.documentai.v1beta2.KeyValuePairHint key_value_pair_hints = 2;
@@ -1250,18 +1030,7 @@ public com.google.cloud.documentai.v1beta2.KeyValuePairHint.Builder getKeyValueP
      *
      *
      * 
-     * User can provide pairs of (key text, value type) to improve the parsing
-     * result.
-     *
-     * For example, if a document has a field called "Date" that holds a date
-     * value and a field called "Amount" that may hold either a currency value
-     * (e.g., "$500.00") or a simple number value (e.g., "20"), you could use the
-     * following hints: [ {"key": "Date", value_types: [ "DATE"]}, {"key":
-     * "Amount", "value_types": [ "PRICE", "NUMBER" ]} ]
-     *
-     * If the value type is unknown, but you want to provide hints for the keys,
-     * you can leave the value_types field blank. e.g. {"key": "Date",
-     * "value_types": []}
+     * Reserved for future use.
      * 

      *
      * repeated .google.cloud.documentai.v1beta2.KeyValuePairHint key_value_pair_hints = 2;
@@ -1276,18 +1045,7 @@ public com.google.cloud.documentai.v1beta2.KeyValuePairHint.Builder getKeyValueP
      *
      *
      * 
-     * User can provide pairs of (key text, value type) to improve the parsing
-     * result.
-     *
-     * For example, if a document has a field called "Date" that holds a date
-     * value and a field called "Amount" that may hold either a currency value
-     * (e.g., "$500.00") or a simple number value (e.g., "20"), you could use the
-     * following hints: [ {"key": "Date", value_types: [ "DATE"]}, {"key":
-     * "Amount", "value_types": [ "PRICE", "NUMBER" ]} ]
-     *
-     * If the value type is unknown, but you want to provide hints for the keys,
-     * you can leave the value_types field blank. e.g. {"key": "Date",
-     * "value_types": []}
+     * Reserved for future use.
      * 

      *
      * repeated .google.cloud.documentai.v1beta2.KeyValuePairHint key_value_pair_hints = 2;
@@ -1303,18 +1061,7 @@ public com.google.cloud.documentai.v1beta2.KeyValuePairHint.Builder addKeyValueP
      *
      *
      * 
-     * User can provide pairs of (key text, value type) to improve the parsing
-     * result.
-     *
-     * For example, if a document has a field called "Date" that holds a date
-     * value and a field called "Amount" that may hold either a currency value
-     * (e.g., "$500.00") or a simple number value (e.g., "20"), you could use the
-     * following hints: [ {"key": "Date", value_types: [ "DATE"]}, {"key":
-     * "Amount", "value_types": [ "PRICE", "NUMBER" ]} ]
-     *
-     * If the value type is unknown, but you want to provide hints for the keys,
-     * you can leave the value_types field blank. e.g. {"key": "Date",
-     * "value_types": []}
+     * Reserved for future use.
      * 

      *
      * repeated .google.cloud.documentai.v1beta2.KeyValuePairHint key_value_pair_hints = 2;
@@ -1352,7 +1099,7 @@ public com.google.cloud.documentai.v1beta2.KeyValuePairHint.Builder addKeyValueP
      * 
      * Model version of the form extraction system. Default is
      * "builtin/stable". Specify "builtin/latest" for the latest model.
-     * For custom form models, specify: “custom/{model_name}". Model name
+     * For custom form models, specify: "custom/{model_name}". Model name
      * format is "bucket_name/path/to/modeldir" corresponding to
      * "gs://bucket_name/path/to/modeldir" where annotated examples are stored.
      * 

@@ -1378,7 +1125,7 @@ public java.lang.String getModelVersion() {
      * 
      * Model version of the form extraction system. Default is
      * "builtin/stable". Specify "builtin/latest" for the latest model.
-     * For custom form models, specify: “custom/{model_name}". Model name
+     * For custom form models, specify: "custom/{model_name}". Model name
      * format is "bucket_name/path/to/modeldir" corresponding to
      * "gs://bucket_name/path/to/modeldir" where annotated examples are stored.
      * 

@@ -1404,7 +1151,7 @@ public com.google.protobuf.ByteString getModelVersionBytes() {
      * 
      * Model version of the form extraction system. Default is
      * "builtin/stable". Specify "builtin/latest" for the latest model.
-     * For custom form models, specify: “custom/{model_name}". Model name
+     * For custom form models, specify: "custom/{model_name}". Model name
      * format is "bucket_name/path/to/modeldir" corresponding to
      * "gs://bucket_name/path/to/modeldir" where annotated examples are stored.
      * 

@@ -1429,7 +1176,7 @@ public Builder setModelVersion(java.lang.String value) {
      * 
      * Model version of the form extraction system. Default is
      * "builtin/stable". Specify "builtin/latest" for the latest model.
-     * For custom form models, specify: “custom/{model_name}". Model name
+     * For custom form models, specify: "custom/{model_name}". Model name
      * format is "bucket_name/path/to/modeldir" corresponding to
      * "gs://bucket_name/path/to/modeldir" where annotated examples are stored.
      * 

@@ -1450,7 +1197,7 @@ public Builder clearModelVersion() {
      * 
      * Model version of the form extraction system. Default is
      * "builtin/stable". Specify "builtin/latest" for the latest model.
-     * For custom form models, specify: “custom/{model_name}". Model name
+     * For custom form models, specify: "custom/{model_name}". Model name
      * format is "bucket_name/path/to/modeldir" corresponding to
      * "gs://bucket_name/path/to/modeldir" where annotated examples are stored.
      * 

diff --git a/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/java/com/google/cloud/documentai/v1beta2/FormExtractionParamsOrBuilder.java b/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/java/com/google/cloud/documentai/v1beta2/FormExtractionParamsOrBuilder.java
index 9f5824737814..7eea32e402f7 100644
--- a/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/java/com/google/cloud/documentai/v1beta2/FormExtractionParamsOrBuilder.java
+++ b/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/java/com/google/cloud/documentai/v1beta2/FormExtractionParamsOrBuilder.java
@@ -40,18 +40,7 @@ public interface FormExtractionParamsOrBuilder
    *
    *
    * 
-   * User can provide pairs of (key text, value type) to improve the parsing
-   * result.
-   *
-   * For example, if a document has a field called "Date" that holds a date
-   * value and a field called "Amount" that may hold either a currency value
-   * (e.g., "$500.00") or a simple number value (e.g., "20"), you could use the
-   * following hints: [ {"key": "Date", value_types: [ "DATE"]}, {"key":
-   * "Amount", "value_types": [ "PRICE", "NUMBER" ]} ]
-   *
-   * If the value type is unknown, but you want to provide hints for the keys,
-   * you can leave the value_types field blank. e.g. {"key": "Date",
-   * "value_types": []}
+   * Reserved for future use.
    * 

    *
    * repeated .google.cloud.documentai.v1beta2.KeyValuePairHint key_value_pair_hints = 2;
@@ -62,18 +51,7 @@ public interface FormExtractionParamsOrBuilder
    *
    *
    * 
-   * User can provide pairs of (key text, value type) to improve the parsing
-   * result.
-   *
-   * For example, if a document has a field called "Date" that holds a date
-   * value and a field called "Amount" that may hold either a currency value
-   * (e.g., "$500.00") or a simple number value (e.g., "20"), you could use the
-   * following hints: [ {"key": "Date", value_types: [ "DATE"]}, {"key":
-   * "Amount", "value_types": [ "PRICE", "NUMBER" ]} ]
-   *
-   * If the value type is unknown, but you want to provide hints for the keys,
-   * you can leave the value_types field blank. e.g. {"key": "Date",
-   * "value_types": []}
+   * Reserved for future use.
    * 

    *
    * repeated .google.cloud.documentai.v1beta2.KeyValuePairHint key_value_pair_hints = 2;
@@ -84,18 +62,7 @@ public interface FormExtractionParamsOrBuilder
    *
    *
    * 
-   * User can provide pairs of (key text, value type) to improve the parsing
-   * result.
-   *
-   * For example, if a document has a field called "Date" that holds a date
-   * value and a field called "Amount" that may hold either a currency value
-   * (e.g., "$500.00") or a simple number value (e.g., "20"), you could use the
-   * following hints: [ {"key": "Date", value_types: [ "DATE"]}, {"key":
-   * "Amount", "value_types": [ "PRICE", "NUMBER" ]} ]
-   *
-   * If the value type is unknown, but you want to provide hints for the keys,
-   * you can leave the value_types field blank. e.g. {"key": "Date",
-   * "value_types": []}
+   * Reserved for future use.
    * 

    *
    * repeated .google.cloud.documentai.v1beta2.KeyValuePairHint key_value_pair_hints = 2;
@@ -106,18 +73,7 @@ public interface FormExtractionParamsOrBuilder
    *
    *
    * 
-   * User can provide pairs of (key text, value type) to improve the parsing
-   * result.
-   *
-   * For example, if a document has a field called "Date" that holds a date
-   * value and a field called "Amount" that may hold either a currency value
-   * (e.g., "$500.00") or a simple number value (e.g., "20"), you could use the
-   * following hints: [ {"key": "Date", value_types: [ "DATE"]}, {"key":
-   * "Amount", "value_types": [ "PRICE", "NUMBER" ]} ]
-   *
-   * If the value type is unknown, but you want to provide hints for the keys,
-   * you can leave the value_types field blank. e.g. {"key": "Date",
-   * "value_types": []}
+   * Reserved for future use.
    * 

    *
    * repeated .google.cloud.documentai.v1beta2.KeyValuePairHint key_value_pair_hints = 2;
@@ -129,18 +85,7 @@ public interface FormExtractionParamsOrBuilder
    *
    *
    * 
-   * User can provide pairs of (key text, value type) to improve the parsing
-   * result.
-   *
-   * For example, if a document has a field called "Date" that holds a date
-   * value and a field called "Amount" that may hold either a currency value
-   * (e.g., "$500.00") or a simple number value (e.g., "20"), you could use the
-   * following hints: [ {"key": "Date", value_types: [ "DATE"]}, {"key":
-   * "Amount", "value_types": [ "PRICE", "NUMBER" ]} ]
-   *
-   * If the value type is unknown, but you want to provide hints for the keys,
-   * you can leave the value_types field blank. e.g. {"key": "Date",
-   * "value_types": []}
+   * Reserved for future use.
    * 

    *
    * repeated .google.cloud.documentai.v1beta2.KeyValuePairHint key_value_pair_hints = 2;
@@ -155,7 +100,7 @@ com.google.cloud.documentai.v1beta2.KeyValuePairHintOrBuilder getKeyValuePairHin
    * 
    * Model version of the form extraction system. Default is
    * "builtin/stable". Specify "builtin/latest" for the latest model.
-   * For custom form models, specify: “custom/{model_name}". Model name
+   * For custom form models, specify: "custom/{model_name}". Model name
    * format is "bucket_name/path/to/modeldir" corresponding to
    * "gs://bucket_name/path/to/modeldir" where annotated examples are stored.
    * 

@@ -171,7 +116,7 @@ com.google.cloud.documentai.v1beta2.KeyValuePairHintOrBuilder getKeyValuePairHin
    * 
    * Model version of the form extraction system. Default is
    * "builtin/stable". Specify "builtin/latest" for the latest model.
-   * For custom form models, specify: “custom/{model_name}". Model name
+   * For custom form models, specify: "custom/{model_name}". Model name
    * format is "bucket_name/path/to/modeldir" corresponding to
    * "gs://bucket_name/path/to/modeldir" where annotated examples are stored.
    * 

diff --git a/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/java/com/google/cloud/documentai/v1beta2/InputConfig.java b/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/java/com/google/cloud/documentai/v1beta2/InputConfig.java
index 67135b02eb7b..a44d034bbc5b 100644
--- a/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/java/com/google/cloud/documentai/v1beta2/InputConfig.java
+++ b/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/java/com/google/cloud/documentai/v1beta2/InputConfig.java
@@ -216,11 +216,12 @@ public com.google.protobuf.ByteString getContents() {
    *
    *
    * 
-   * Required. Mimetype of the input. Current supported mimetypes are application/pdf,
-   * image/tiff, and image/gif.
-   * In addition, application/json type is supported for requests with
-   * [ProcessDocumentRequest.automl_params][google.cloud.documentai.v1beta2.ProcessDocumentRequest.automl_params] field set. The JSON file needs to
-   * be in [Document][google.cloud.documentai.v1beta2.Document] format.
+   * Required. Mimetype of the input. Current supported mimetypes are
+   * application/pdf, image/tiff, and image/gif. In addition, application/json
+   * type is supported for requests with
+   * [ProcessDocumentRequest.automl_params][google.cloud.documentai.v1beta2.ProcessDocumentRequest.automl_params]
+   * field set. The JSON file needs to be in
+   * [Document][google.cloud.documentai.v1beta2.Document] format.
    * 

    *
    * string mime_type = 2 [(.google.api.field_behavior) = REQUIRED];
@@ -243,11 +244,12 @@ public java.lang.String getMimeType() {
    *
    *
    * 
-   * Required. Mimetype of the input. Current supported mimetypes are application/pdf,
-   * image/tiff, and image/gif.
-   * In addition, application/json type is supported for requests with
-   * [ProcessDocumentRequest.automl_params][google.cloud.documentai.v1beta2.ProcessDocumentRequest.automl_params] field set. The JSON file needs to
-   * be in [Document][google.cloud.documentai.v1beta2.Document] format.
+   * Required. Mimetype of the input. Current supported mimetypes are
+   * application/pdf, image/tiff, and image/gif. In addition, application/json
+   * type is supported for requests with
+   * [ProcessDocumentRequest.automl_params][google.cloud.documentai.v1beta2.ProcessDocumentRequest.automl_params]
+   * field set. The JSON file needs to be in
+   * [Document][google.cloud.documentai.v1beta2.Document] format.
    * 

    *
    * string mime_type = 2 [(.google.api.field_behavior) = REQUIRED];
@@ -1015,11 +1017,12 @@ public Builder clearContents() {
      *
      *
      * 
-     * Required. Mimetype of the input. Current supported mimetypes are application/pdf,
-     * image/tiff, and image/gif.
-     * In addition, application/json type is supported for requests with
-     * [ProcessDocumentRequest.automl_params][google.cloud.documentai.v1beta2.ProcessDocumentRequest.automl_params] field set. The JSON file needs to
-     * be in [Document][google.cloud.documentai.v1beta2.Document] format.
+     * Required. Mimetype of the input. Current supported mimetypes are
+     * application/pdf, image/tiff, and image/gif. In addition, application/json
+     * type is supported for requests with
+     * [ProcessDocumentRequest.automl_params][google.cloud.documentai.v1beta2.ProcessDocumentRequest.automl_params]
+     * field set. The JSON file needs to be in
+     * [Document][google.cloud.documentai.v1beta2.Document] format.
      * 

      *
      * string mime_type = 2 [(.google.api.field_behavior) = REQUIRED];
@@ -1041,11 +1044,12 @@ public java.lang.String getMimeType() {
      *
      *
      * 
-     * Required. Mimetype of the input. Current supported mimetypes are application/pdf,
-     * image/tiff, and image/gif.
-     * In addition, application/json type is supported for requests with
-     * [ProcessDocumentRequest.automl_params][google.cloud.documentai.v1beta2.ProcessDocumentRequest.automl_params] field set. The JSON file needs to
-     * be in [Document][google.cloud.documentai.v1beta2.Document] format.
+     * Required. Mimetype of the input. Current supported mimetypes are
+     * application/pdf, image/tiff, and image/gif. In addition, application/json
+     * type is supported for requests with
+     * [ProcessDocumentRequest.automl_params][google.cloud.documentai.v1beta2.ProcessDocumentRequest.automl_params]
+     * field set. The JSON file needs to be in
+     * [Document][google.cloud.documentai.v1beta2.Document] format.
      * 

      *
      * string mime_type = 2 [(.google.api.field_behavior) = REQUIRED];
@@ -1067,11 +1071,12 @@ public com.google.protobuf.ByteString getMimeTypeBytes() {
      *
      *
      * 
-     * Required. Mimetype of the input. Current supported mimetypes are application/pdf,
-     * image/tiff, and image/gif.
-     * In addition, application/json type is supported for requests with
-     * [ProcessDocumentRequest.automl_params][google.cloud.documentai.v1beta2.ProcessDocumentRequest.automl_params] field set. The JSON file needs to
-     * be in [Document][google.cloud.documentai.v1beta2.Document] format.
+     * Required. Mimetype of the input. Current supported mimetypes are
+     * application/pdf, image/tiff, and image/gif. In addition, application/json
+     * type is supported for requests with
+     * [ProcessDocumentRequest.automl_params][google.cloud.documentai.v1beta2.ProcessDocumentRequest.automl_params]
+     * field set. The JSON file needs to be in
+     * [Document][google.cloud.documentai.v1beta2.Document] format.
      * 

      *
      * string mime_type = 2 [(.google.api.field_behavior) = REQUIRED];
@@ -1092,11 +1097,12 @@ public Builder setMimeType(java.lang.String value) {
      *
      *
      * 
-     * Required. Mimetype of the input. Current supported mimetypes are application/pdf,
-     * image/tiff, and image/gif.
-     * In addition, application/json type is supported for requests with
-     * [ProcessDocumentRequest.automl_params][google.cloud.documentai.v1beta2.ProcessDocumentRequest.automl_params] field set. The JSON file needs to
-     * be in [Document][google.cloud.documentai.v1beta2.Document] format.
+     * Required. Mimetype of the input. Current supported mimetypes are
+     * application/pdf, image/tiff, and image/gif. In addition, application/json
+     * type is supported for requests with
+     * [ProcessDocumentRequest.automl_params][google.cloud.documentai.v1beta2.ProcessDocumentRequest.automl_params]
+     * field set. The JSON file needs to be in
+     * [Document][google.cloud.documentai.v1beta2.Document] format.
      * 

      *
      * string mime_type = 2 [(.google.api.field_behavior) = REQUIRED];
@@ -1113,11 +1119,12 @@ public Builder clearMimeType() {
      *
      *
      * 
-     * Required. Mimetype of the input. Current supported mimetypes are application/pdf,
-     * image/tiff, and image/gif.
-     * In addition, application/json type is supported for requests with
-     * [ProcessDocumentRequest.automl_params][google.cloud.documentai.v1beta2.ProcessDocumentRequest.automl_params] field set. The JSON file needs to
-     * be in [Document][google.cloud.documentai.v1beta2.Document] format.
+     * Required. Mimetype of the input. Current supported mimetypes are
+     * application/pdf, image/tiff, and image/gif. In addition, application/json
+     * type is supported for requests with
+     * [ProcessDocumentRequest.automl_params][google.cloud.documentai.v1beta2.ProcessDocumentRequest.automl_params]
+     * field set. The JSON file needs to be in
+     * [Document][google.cloud.documentai.v1beta2.Document] format.
      * 

      *
      * string mime_type = 2 [(.google.api.field_behavior) = REQUIRED];
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/java/com/google/cloud/documentai/v1beta2/InputConfigOrBuilder.java b/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/java/com/google/cloud/documentai/v1beta2/InputConfigOrBuilder.java
index 0c369d20d90b..b9229cc9adc0 100644
--- a/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/java/com/google/cloud/documentai/v1beta2/InputConfigOrBuilder.java
+++ b/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/java/com/google/cloud/documentai/v1beta2/InputConfigOrBuilder.java
@@ -98,11 +98,12 @@ public interface InputConfigOrBuilder
    *
    *
    * 
-   * Required. Mimetype of the input. Current supported mimetypes are application/pdf,
-   * image/tiff, and image/gif.
-   * In addition, application/json type is supported for requests with
-   * [ProcessDocumentRequest.automl_params][google.cloud.documentai.v1beta2.ProcessDocumentRequest.automl_params] field set. The JSON file needs to
-   * be in [Document][google.cloud.documentai.v1beta2.Document] format.
+   * Required. Mimetype of the input. Current supported mimetypes are
+   * application/pdf, image/tiff, and image/gif. In addition, application/json
+   * type is supported for requests with
+   * [ProcessDocumentRequest.automl_params][google.cloud.documentai.v1beta2.ProcessDocumentRequest.automl_params]
+   * field set. The JSON file needs to be in
+   * [Document][google.cloud.documentai.v1beta2.Document] format.
    * 

    *
    * string mime_type = 2 [(.google.api.field_behavior) = REQUIRED];
@@ -114,11 +115,12 @@ public interface InputConfigOrBuilder
    *
    *
    * 
-   * Required. Mimetype of the input. Current supported mimetypes are application/pdf,
-   * image/tiff, and image/gif.
-   * In addition, application/json type is supported for requests with
-   * [ProcessDocumentRequest.automl_params][google.cloud.documentai.v1beta2.ProcessDocumentRequest.automl_params] field set. The JSON file needs to
-   * be in [Document][google.cloud.documentai.v1beta2.Document] format.
+   * Required. Mimetype of the input. Current supported mimetypes are
+   * application/pdf, image/tiff, and image/gif. In addition, application/json
+   * type is supported for requests with
+   * [ProcessDocumentRequest.automl_params][google.cloud.documentai.v1beta2.ProcessDocumentRequest.automl_params]
+   * field set. The JSON file needs to be in
+   * [Document][google.cloud.documentai.v1beta2.Document] format.
    * 

    *
    * string mime_type = 2 [(.google.api.field_behavior) = REQUIRED];
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/java/com/google/cloud/documentai/v1beta2/KeyValuePairHint.java b/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/java/com/google/cloud/documentai/v1beta2/KeyValuePairHint.java
index 5676c34be7e5..fbb250c32610 100644
--- a/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/java/com/google/cloud/documentai/v1beta2/KeyValuePairHint.java
+++ b/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/java/com/google/cloud/documentai/v1beta2/KeyValuePairHint.java
@@ -22,7 +22,7 @@
  *
  *
  * 
- * User-provided hint for key value pair.
+ * Reserved for future use.
  * 

  *
  * Protobuf type {@code google.cloud.documentai.v1beta2.KeyValuePairHint}
@@ -369,7 +369,7 @@ protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.Build
    *
    *
    * 
-   * User-provided hint for key value pair.
+   * Reserved for future use.
    * 

    *
    * Protobuf type {@code google.cloud.documentai.v1beta2.KeyValuePairHint}
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/java/com/google/cloud/documentai/v1beta2/NormalizedVertex.java b/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/java/com/google/cloud/documentai/v1beta2/NormalizedVertex.java
index 86af9ac45aab..75bb1c3a6b55 100644
--- a/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/java/com/google/cloud/documentai/v1beta2/NormalizedVertex.java
+++ b/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/java/com/google/cloud/documentai/v1beta2/NormalizedVertex.java
@@ -86,7 +86,7 @@ public float getX() {
    *
    *
    * 
-   * Y coordinate.
+   * Y coordinate (starts from the top of the image).
    * 

    *
    * float y = 2;
@@ -522,7 +522,7 @@ public Builder clearX() {
      *
      *
      * 
-     * Y coordinate.
+     * Y coordinate (starts from the top of the image).
      * 

      *
      * float y = 2;
@@ -537,7 +537,7 @@ public float getY() {
      *
      *
      * 
-     * Y coordinate.
+     * Y coordinate (starts from the top of the image).
      * 

      *
      * float y = 2;
@@ -556,7 +556,7 @@ public Builder setY(float value) {
      *
      *
      * 
-     * Y coordinate.
+     * Y coordinate (starts from the top of the image).
      * 

      *
      * float y = 2;
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/java/com/google/cloud/documentai/v1beta2/NormalizedVertexOrBuilder.java b/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/java/com/google/cloud/documentai/v1beta2/NormalizedVertexOrBuilder.java
index abbb3e19affd..ef947b547c85 100644
--- a/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/java/com/google/cloud/documentai/v1beta2/NormalizedVertexOrBuilder.java
+++ b/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/java/com/google/cloud/documentai/v1beta2/NormalizedVertexOrBuilder.java
@@ -40,7 +40,7 @@ public interface NormalizedVertexOrBuilder
    *
    *
    * 
-   * Y coordinate.
+   * Y coordinate (starts from the top of the image).
    * 

    *
    * float y = 2;
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/java/com/google/cloud/documentai/v1beta2/ProcessDocumentRequest.java b/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/java/com/google/cloud/documentai/v1beta2/ProcessDocumentRequest.java
index b04b52afffe4..2cb56b07adff 100644
--- a/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/java/com/google/cloud/documentai/v1beta2/ProcessDocumentRequest.java
+++ b/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/java/com/google/cloud/documentai/v1beta2/ProcessDocumentRequest.java
@@ -186,13 +186,11 @@ public com.google.cloud.documentai.v1beta2.InputConfigOrBuilder getInputConfigOr
    *
    *
    * 
-   * Optional. The desired output location. This field is only needed in
+   * The desired output location. This field is only needed in
    * BatchProcessDocumentsRequest.
    * 

    *
-   * 
-   * .google.cloud.documentai.v1beta2.OutputConfig output_config = 2 [(.google.api.field_behavior) = OPTIONAL];
-   * 
+   * .google.cloud.documentai.v1beta2.OutputConfig output_config = 2;
    *
    * @return Whether the outputConfig field is set.
    */
@@ -204,13 +202,11 @@ public boolean hasOutputConfig() {
    *
    *
    * 
-   * Optional. The desired output location. This field is only needed in
+   * The desired output location. This field is only needed in
    * BatchProcessDocumentsRequest.
    * 

    *
-   * 
-   * .google.cloud.documentai.v1beta2.OutputConfig output_config = 2 [(.google.api.field_behavior) = OPTIONAL];
-   * 
+   * .google.cloud.documentai.v1beta2.OutputConfig output_config = 2;
    *
    * @return The outputConfig.
    */
@@ -224,13 +220,11 @@ public com.google.cloud.documentai.v1beta2.OutputConfig getOutputConfig() {
    *
    *
    * 
-   * Optional. The desired output location. This field is only needed in
+   * The desired output location. This field is only needed in
    * BatchProcessDocumentsRequest.
    * 

    *
-   * 
-   * .google.cloud.documentai.v1beta2.OutputConfig output_config = 2 [(.google.api.field_behavior) = OPTIONAL];
-   * 
+   * .google.cloud.documentai.v1beta2.OutputConfig output_config = 2;
    */
   @java.lang.Override
   public com.google.cloud.documentai.v1beta2.OutputConfigOrBuilder getOutputConfigOrBuilder() {
@@ -1514,13 +1508,11 @@ public com.google.cloud.documentai.v1beta2.InputConfigOrBuilder getInputConfigOr
      *
      *
      * 
-     * Optional. The desired output location. This field is only needed in
+     * The desired output location. This field is only needed in
      * BatchProcessDocumentsRequest.
      * 

      *
-     * 
-     * .google.cloud.documentai.v1beta2.OutputConfig output_config = 2 [(.google.api.field_behavior) = OPTIONAL];
-     * 
+     * .google.cloud.documentai.v1beta2.OutputConfig output_config = 2;
      *
      * @return Whether the outputConfig field is set.
      */
@@ -1531,13 +1523,11 @@ public boolean hasOutputConfig() {
      *
      *
      * 
-     * Optional. The desired output location. This field is only needed in
+     * The desired output location. This field is only needed in
      * BatchProcessDocumentsRequest.
      * 

      *
-     * 
-     * .google.cloud.documentai.v1beta2.OutputConfig output_config = 2 [(.google.api.field_behavior) = OPTIONAL];
-     * 
+     * .google.cloud.documentai.v1beta2.OutputConfig output_config = 2;
      *
      * @return The outputConfig.
      */
@@ -1554,13 +1544,11 @@ public com.google.cloud.documentai.v1beta2.OutputConfig getOutputConfig() {
      *
      *
      * 
-     * Optional. The desired output location. This field is only needed in
+     * The desired output location. This field is only needed in
      * BatchProcessDocumentsRequest.
      * 

      *
-     * 
-     * .google.cloud.documentai.v1beta2.OutputConfig output_config = 2 [(.google.api.field_behavior) = OPTIONAL];
-     * 
+     * .google.cloud.documentai.v1beta2.OutputConfig output_config = 2;
      */
     public Builder setOutputConfig(com.google.cloud.documentai.v1beta2.OutputConfig value) {
       if (outputConfigBuilder_ == null) {
@@ -1579,13 +1567,11 @@ public Builder setOutputConfig(com.google.cloud.documentai.v1beta2.OutputConfig
      *
      *
      * 
-     * Optional. The desired output location. This field is only needed in
+     * The desired output location. This field is only needed in
      * BatchProcessDocumentsRequest.
      * 

      *
-     * 
-     * .google.cloud.documentai.v1beta2.OutputConfig output_config = 2 [(.google.api.field_behavior) = OPTIONAL];
-     * 
+     * .google.cloud.documentai.v1beta2.OutputConfig output_config = 2;
      */
     public Builder setOutputConfig(
         com.google.cloud.documentai.v1beta2.OutputConfig.Builder builderForValue) {
@@ -1602,13 +1588,11 @@ public Builder setOutputConfig(
      *
      *
      * 
-     * Optional. The desired output location. This field is only needed in
+     * The desired output location. This field is only needed in
      * BatchProcessDocumentsRequest.
      * 

      *
-     * 
-     * .google.cloud.documentai.v1beta2.OutputConfig output_config = 2 [(.google.api.field_behavior) = OPTIONAL];
-     * 
+     * .google.cloud.documentai.v1beta2.OutputConfig output_config = 2;
      */
     public Builder mergeOutputConfig(com.google.cloud.documentai.v1beta2.OutputConfig value) {
       if (outputConfigBuilder_ == null) {
@@ -1631,13 +1615,11 @@ public Builder mergeOutputConfig(com.google.cloud.documentai.v1beta2.OutputConfi
      *
      *
      * 
-     * Optional. The desired output location. This field is only needed in
+     * The desired output location. This field is only needed in
      * BatchProcessDocumentsRequest.
      * 

      *
-     * 
-     * .google.cloud.documentai.v1beta2.OutputConfig output_config = 2 [(.google.api.field_behavior) = OPTIONAL];
-     * 
+     * .google.cloud.documentai.v1beta2.OutputConfig output_config = 2;
      */
     public Builder clearOutputConfig() {
       bitField0_ = (bitField0_ & ~0x00000004);
@@ -1653,13 +1635,11 @@ public Builder clearOutputConfig() {
      *
      *
      * 
-     * Optional. The desired output location. This field is only needed in
+     * The desired output location. This field is only needed in
      * BatchProcessDocumentsRequest.
      * 

      *
-     * 
-     * .google.cloud.documentai.v1beta2.OutputConfig output_config = 2 [(.google.api.field_behavior) = OPTIONAL];
-     * 
+     * .google.cloud.documentai.v1beta2.OutputConfig output_config = 2;
      */
     public com.google.cloud.documentai.v1beta2.OutputConfig.Builder getOutputConfigBuilder() {
       bitField0_ |= 0x00000004;
@@ -1670,13 +1650,11 @@ public com.google.cloud.documentai.v1beta2.OutputConfig.Builder getOutputConfigB
      *
      *
      * 
-     * Optional. The desired output location. This field is only needed in
+     * The desired output location. This field is only needed in
      * BatchProcessDocumentsRequest.
      * 

      *
-     * 
-     * .google.cloud.documentai.v1beta2.OutputConfig output_config = 2 [(.google.api.field_behavior) = OPTIONAL];
-     * 
+     * .google.cloud.documentai.v1beta2.OutputConfig output_config = 2;
      */
     public com.google.cloud.documentai.v1beta2.OutputConfigOrBuilder getOutputConfigOrBuilder() {
       if (outputConfigBuilder_ != null) {
@@ -1691,13 +1669,11 @@ public com.google.cloud.documentai.v1beta2.OutputConfigOrBuilder getOutputConfig
      *
      *
      * 
-     * Optional. The desired output location. This field is only needed in
+     * The desired output location. This field is only needed in
      * BatchProcessDocumentsRequest.
      * 

      *
-     * 
-     * .google.cloud.documentai.v1beta2.OutputConfig output_config = 2 [(.google.api.field_behavior) = OPTIONAL];
-     * 
+     * .google.cloud.documentai.v1beta2.OutputConfig output_config = 2;
      */
     private com.google.protobuf.SingleFieldBuilderV3<
             com.google.cloud.documentai.v1beta2.OutputConfig,
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/java/com/google/cloud/documentai/v1beta2/ProcessDocumentRequestOrBuilder.java b/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/java/com/google/cloud/documentai/v1beta2/ProcessDocumentRequestOrBuilder.java
index 8a1dca9797ed..9245196abd57 100644
--- a/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/java/com/google/cloud/documentai/v1beta2/ProcessDocumentRequestOrBuilder.java
+++ b/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/java/com/google/cloud/documentai/v1beta2/ProcessDocumentRequestOrBuilder.java
@@ -103,13 +103,11 @@ public interface ProcessDocumentRequestOrBuilder
    *
    *
    * 
-   * Optional. The desired output location. This field is only needed in
+   * The desired output location. This field is only needed in
    * BatchProcessDocumentsRequest.
    * 

    *
-   * 
-   * .google.cloud.documentai.v1beta2.OutputConfig output_config = 2 [(.google.api.field_behavior) = OPTIONAL];
-   * 
+   * .google.cloud.documentai.v1beta2.OutputConfig output_config = 2;
    *
    * @return Whether the outputConfig field is set.
    */
@@ -118,13 +116,11 @@ public interface ProcessDocumentRequestOrBuilder
    *
    *
    * 
-   * Optional. The desired output location. This field is only needed in
+   * The desired output location. This field is only needed in
    * BatchProcessDocumentsRequest.
    * 

    *
-   * 
-   * .google.cloud.documentai.v1beta2.OutputConfig output_config = 2 [(.google.api.field_behavior) = OPTIONAL];
-   * 
+   * .google.cloud.documentai.v1beta2.OutputConfig output_config = 2;
    *
    * @return The outputConfig.
    */
@@ -133,13 +129,11 @@ public interface ProcessDocumentRequestOrBuilder
    *
    *
    * 
-   * Optional. The desired output location. This field is only needed in
+   * The desired output location. This field is only needed in
    * BatchProcessDocumentsRequest.
    * 

    *
-   * 
-   * .google.cloud.documentai.v1beta2.OutputConfig output_config = 2 [(.google.api.field_behavior) = OPTIONAL];
-   * 
+   * .google.cloud.documentai.v1beta2.OutputConfig output_config = 2;
    */
   com.google.cloud.documentai.v1beta2.OutputConfigOrBuilder getOutputConfigOrBuilder();
 
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/java/com/google/cloud/documentai/v1beta2/TableExtractionParams.java b/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/java/com/google/cloud/documentai/v1beta2/TableExtractionParams.java
index 054e4c81c77b..6f944912a7d2 100644
--- a/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/java/com/google/cloud/documentai/v1beta2/TableExtractionParams.java
+++ b/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/java/com/google/cloud/documentai/v1beta2/TableExtractionParams.java
@@ -179,8 +179,7 @@ public com.google.cloud.documentai.v1beta2.TableBoundHintOrBuilder getTableBound
    *
    *
    * 
-   * Optional. Table header hints. The extraction will bias towards producing
-   * these terms as table headers, which may improve accuracy.
+   * Optional. Reserved for future use.
    * 

    *
    * repeated string header_hints = 3 [(.google.api.field_behavior) = OPTIONAL];
@@ -194,8 +193,7 @@ public com.google.protobuf.ProtocolStringList getHeaderHintsList() {
    *
    *
    * 
-   * Optional. Table header hints. The extraction will bias towards producing
-   * these terms as table headers, which may improve accuracy.
+   * Optional. Reserved for future use.
    * 

    *
    * repeated string header_hints = 3 [(.google.api.field_behavior) = OPTIONAL];
@@ -209,8 +207,7 @@ public int getHeaderHintsCount() {
    *
    *
    * 
-   * Optional. Table header hints. The extraction will bias towards producing
-   * these terms as table headers, which may improve accuracy.
+   * Optional. Reserved for future use.
    * 

    *
    * repeated string header_hints = 3 [(.google.api.field_behavior) = OPTIONAL];
@@ -225,8 +222,7 @@ public java.lang.String getHeaderHints(int index) {
    *
    *
    * 
-   * Optional. Table header hints. The extraction will bias towards producing
-   * these terms as table headers, which may improve accuracy.
+   * Optional. Reserved for future use.
    * 

    *
    * repeated string header_hints = 3 [(.google.api.field_behavior) = OPTIONAL];
@@ -1249,8 +1245,7 @@ private void ensureHeaderHintsIsMutable() {
      *
      *
      * 
-     * Optional. Table header hints. The extraction will bias towards producing
-     * these terms as table headers, which may improve accuracy.
+     * Optional. Reserved for future use.
      * 

      *
      * repeated string header_hints = 3 [(.google.api.field_behavior) = OPTIONAL];
@@ -1265,8 +1260,7 @@ public com.google.protobuf.ProtocolStringList getHeaderHintsList() {
      *
      *
      * 
-     * Optional. Table header hints. The extraction will bias towards producing
-     * these terms as table headers, which may improve accuracy.
+     * Optional. Reserved for future use.
      * 

      *
      * repeated string header_hints = 3 [(.google.api.field_behavior) = OPTIONAL];
@@ -1280,8 +1274,7 @@ public int getHeaderHintsCount() {
      *
      *
      * 
-     * Optional. Table header hints. The extraction will bias towards producing
-     * these terms as table headers, which may improve accuracy.
+     * Optional. Reserved for future use.
      * 

      *
      * repeated string header_hints = 3 [(.google.api.field_behavior) = OPTIONAL];
@@ -1296,8 +1289,7 @@ public java.lang.String getHeaderHints(int index) {
      *
      *
      * 
-     * Optional. Table header hints. The extraction will bias towards producing
-     * these terms as table headers, which may improve accuracy.
+     * Optional. Reserved for future use.
      * 

      *
      * repeated string header_hints = 3 [(.google.api.field_behavior) = OPTIONAL];
@@ -1312,8 +1304,7 @@ public com.google.protobuf.ByteString getHeaderHintsBytes(int index) {
      *
      *
      * 
-     * Optional. Table header hints. The extraction will bias towards producing
-     * these terms as table headers, which may improve accuracy.
+     * Optional. Reserved for future use.
      * 

      *
      * repeated string header_hints = 3 [(.google.api.field_behavior) = OPTIONAL];
@@ -1336,8 +1327,7 @@ public Builder setHeaderHints(int index, java.lang.String value) {
      *
      *
      * 
-     * Optional. Table header hints. The extraction will bias towards producing
-     * these terms as table headers, which may improve accuracy.
+     * Optional. Reserved for future use.
      * 

      *
      * repeated string header_hints = 3 [(.google.api.field_behavior) = OPTIONAL];
@@ -1359,8 +1349,7 @@ public Builder addHeaderHints(java.lang.String value) {
      *
      *
      * 
-     * Optional. Table header hints. The extraction will bias towards producing
-     * these terms as table headers, which may improve accuracy.
+     * Optional. Reserved for future use.
      * 

      *
      * repeated string header_hints = 3 [(.google.api.field_behavior) = OPTIONAL];
@@ -1379,8 +1368,7 @@ public Builder addAllHeaderHints(java.lang.Iterable values) {
      *
      *
      * 
-     * Optional. Table header hints. The extraction will bias towards producing
-     * these terms as table headers, which may improve accuracy.
+     * Optional. Reserved for future use.
      * 

      *
      * repeated string header_hints = 3 [(.google.api.field_behavior) = OPTIONAL];
@@ -1398,8 +1386,7 @@ public Builder clearHeaderHints() {
      *
      *
      * 
-     * Optional. Table header hints. The extraction will bias towards producing
-     * these terms as table headers, which may improve accuracy.
+     * Optional. Reserved for future use.
      * 

      *
      * repeated string header_hints = 3 [(.google.api.field_behavior) = OPTIONAL];
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/java/com/google/cloud/documentai/v1beta2/TableExtractionParamsOrBuilder.java b/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/java/com/google/cloud/documentai/v1beta2/TableExtractionParamsOrBuilder.java
index 6e7ee8c09981..2ecafee1d849 100644
--- a/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/java/com/google/cloud/documentai/v1beta2/TableExtractionParamsOrBuilder.java
+++ b/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/java/com/google/cloud/documentai/v1beta2/TableExtractionParamsOrBuilder.java
@@ -108,8 +108,7 @@ com.google.cloud.documentai.v1beta2.TableBoundHintOrBuilder getTableBoundHintsOr
    *
    *
    * 
-   * Optional. Table header hints. The extraction will bias towards producing
-   * these terms as table headers, which may improve accuracy.
+   * Optional. Reserved for future use.
    * 

    *
    * repeated string header_hints = 3 [(.google.api.field_behavior) = OPTIONAL];
@@ -121,8 +120,7 @@ com.google.cloud.documentai.v1beta2.TableBoundHintOrBuilder getTableBoundHintsOr
    *
    *
    * 
-   * Optional. Table header hints. The extraction will bias towards producing
-   * these terms as table headers, which may improve accuracy.
+   * Optional. Reserved for future use.
    * 

    *
    * repeated string header_hints = 3 [(.google.api.field_behavior) = OPTIONAL];
@@ -134,8 +132,7 @@ com.google.cloud.documentai.v1beta2.TableBoundHintOrBuilder getTableBoundHintsOr
    *
    *
    * 
-   * Optional. Table header hints. The extraction will bias towards producing
-   * these terms as table headers, which may improve accuracy.
+   * Optional. Reserved for future use.
    * 

    *
    * repeated string header_hints = 3 [(.google.api.field_behavior) = OPTIONAL];
@@ -148,8 +145,7 @@ com.google.cloud.documentai.v1beta2.TableBoundHintOrBuilder getTableBoundHintsOr
    *
    *
    * 
-   * Optional. Table header hints. The extraction will bias towards producing
-   * these terms as table headers, which may improve accuracy.
+   * Optional. Reserved for future use.
    * 

    *
    * repeated string header_hints = 3 [(.google.api.field_behavior) = OPTIONAL];
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/java/com/google/cloud/documentai/v1beta2/Vertex.java b/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/java/com/google/cloud/documentai/v1beta2/Vertex.java
index f5d2d50bbdcd..fc0ff9440103 100644
--- a/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/java/com/google/cloud/documentai/v1beta2/Vertex.java
+++ b/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/java/com/google/cloud/documentai/v1beta2/Vertex.java
@@ -85,7 +85,7 @@ public int getX() {
    *
    *
    * 
-   * Y coordinate.
+   * Y coordinate (starts from the top of the image).
    * 

    *
    * int32 y = 2;
@@ -517,7 +517,7 @@ public Builder clearX() {
      *
      *
      * 
-     * Y coordinate.
+     * Y coordinate (starts from the top of the image).
      * 

      *
      * int32 y = 2;
@@ -532,7 +532,7 @@ public int getY() {
      *
      *
      * 
-     * Y coordinate.
+     * Y coordinate (starts from the top of the image).
      * 

      *
      * int32 y = 2;
@@ -551,7 +551,7 @@ public Builder setY(int value) {
      *
      *
      * 
-     * Y coordinate.
+     * Y coordinate (starts from the top of the image).
      * 

      *
      * int32 y = 2;
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/java/com/google/cloud/documentai/v1beta2/VertexOrBuilder.java b/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/java/com/google/cloud/documentai/v1beta2/VertexOrBuilder.java
index e131a6454a2e..37ba0077976a 100644
--- a/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/java/com/google/cloud/documentai/v1beta2/VertexOrBuilder.java
+++ b/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/java/com/google/cloud/documentai/v1beta2/VertexOrBuilder.java
@@ -40,7 +40,7 @@ public interface VertexOrBuilder
    *
    *
    * 
-   * Y coordinate.
+   * Y coordinate (starts from the top of the image).
    * 

    *
    * int32 y = 2;
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/proto/google/cloud/documentai/v1beta2/barcode.proto b/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/proto/google/cloud/documentai/v1beta2/barcode.proto
new file mode 100644
index 000000000000..9de123e17029
--- /dev/null
+++ b/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/proto/google/cloud/documentai/v1beta2/barcode.proto
@@ -0,0 +1,69 @@
+// Copyright 2023 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+syntax = "proto3";
+
+package google.cloud.documentai.v1beta2;
+
+option csharp_namespace = "Google.Cloud.DocumentAI.V1Beta2";
+option go_package = "cloud.google.com/go/documentai/apiv1beta2/documentaipb;documentaipb";
+option java_multiple_files = true;
+option java_outer_classname = "BarcodeProto";
+option java_package = "com.google.cloud.documentai.v1beta2";
+option php_namespace = "Google\\Cloud\\DocumentAI\\V1beta2";
+option ruby_package = "Google::Cloud::DocumentAI::V1beta2";
+
+// Encodes the detailed information of a barcode.
+message Barcode {
+  // Format of a barcode.
+  // The supported formats are:
+  //
+  // - `CODE_128`: Code 128 type.
+  // - `CODE_39`: Code 39 type.
+  // - `CODE_93`: Code 93 type.
+  // - `CODABAR`: Codabar type.
+  // - `DATA_MATRIX`: 2D Data Matrix type.
+  // - `ITF`: ITF type.
+  // - `EAN_13`: EAN-13 type.
+  // - `EAN_8`: EAN-8 type.
+  // - `QR_CODE`: 2D QR code type.
+  // - `UPC_A`: UPC-A type.
+  // - `UPC_E`: UPC-E type.
+  // - `PDF417`: PDF417 type.
+  // - `AZTEC`: 2D Aztec code type.
+  // - `DATABAR`: GS1 DataBar code type.
+  string format = 1;
+
+  // Value format describes the format of the value that a barcode
+  // encodes.
+  // The supported formats are:
+  //
+  // - `CONTACT_INFO`: Contact information.
+  // - `EMAIL`: Email address.
+  // - `ISBN`: ISBN identifier.
+  // - `PHONE`: Phone number.
+  // - `PRODUCT`: Product.
+  // - `SMS`: SMS message.
+  // - `TEXT`: Text string.
+  // - `URL`: URL address.
+  // - `WIFI`: Wifi information.
+  // - `GEO`: Geo-localization.
+  // - `CALENDAR_EVENT`: Calendar event.
+  // - `DRIVER_LICENSE`: Driver's license.
+  string value_format = 2;
+
+  // Raw value encoded in the barcode.
+  // For example: `'MEBKM:TITLE:Google;URL:https://www.google.com;;'`.
+  string raw_value = 3;
+}
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/proto/google/cloud/documentai/v1beta2/document.proto b/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/proto/google/cloud/documentai/v1beta2/document.proto
index bcf457112a02..7e97a6e59359 100644
--- a/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/proto/google/cloud/documentai/v1beta2/document.proto
+++ b/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/proto/google/cloud/documentai/v1beta2/document.proto
@@ -1,4 +1,4 @@
-// Copyright 2020 Google LLC
+// Copyright 2023 Google LLC
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
@@ -17,9 +17,15 @@ syntax = "proto3";
 package google.cloud.documentai.v1beta2;
 
 import "google/api/field_behavior.proto";
+import "google/cloud/documentai/v1beta2/barcode.proto";
 import "google/cloud/documentai/v1beta2/geometry.proto";
+import "google/protobuf/timestamp.proto";
 import "google/rpc/status.proto";
 import "google/type/color.proto";
+import "google/type/date.proto";
+import "google/type/datetime.proto";
+import "google/type/money.proto";
+import "google/type/postal_address.proto";
 
 option csharp_namespace = "Google.Cloud.DocumentAI.V1Beta2";
 option go_package = "cloud.google.com/go/documentai/apiv1beta2/documentaipb;documentaipb";
@@ -29,11 +35,10 @@ option java_package = "com.google.cloud.documentai.v1beta2";
 option php_namespace = "Google\\Cloud\\DocumentAI\\V1beta2";
 option ruby_package = "Google::Cloud::DocumentAI::V1beta2";
 
-// Document represents the canonical document resource in Document Understanding
-// AI.
-// It is an interchange format that provides insights into documents and allows
-// for collaboration between users and Document Understanding AI to iterate and
-// optimize for quality.
+// Document represents the canonical document resource in Document AI. It is an
+// interchange format that provides insights into documents and allows for
+// collaboration between users and Document AI to iterate and optimize for
+// quality.
 message Document {
   // For a large document, sharding may be performed to produce several
   // document shards. Each document shard contains this field to detail which
@@ -45,15 +50,17 @@ message Document {
     // Total number of shards.
     int64 shard_count = 2;
 
-    // The index of the first character in [Document.text][google.cloud.documentai.v1beta2.Document.text] in the overall
-    // document global text.
+    // The index of the first character in
+    // [Document.text][google.cloud.documentai.v1beta2.Document.text] in the
+    // overall document global text.
     int64 text_offset = 3;
   }
 
   // Label attaches schema information and/or other metadata to segments within
-  // a [Document][google.cloud.documentai.v1beta2.Document]. Multiple [Label][google.cloud.documentai.v1beta2.Document.Label]s on a single field can denote either
-  // different labels, different instances of the same label created at
-  // different times, or some combination of both.
+  // a [Document][google.cloud.documentai.v1beta2.Document]. Multiple
+  // [Label][google.cloud.documentai.v1beta2.Document.Label]s on a single field
+  // can denote either different labels, different instances of the same label
+  // created at different times, or some combination of both.
   message Label {
     // Provenance of the label.
     oneof source {
@@ -83,11 +90,13 @@ message Document {
       // Font size for the text.
       float size = 1;
 
-      // Unit for the font size. Follows CSS naming (in, px, pt, etc.).
+      // Unit for the font size. Follows CSS naming (such as `in`, `px`, and
+      // `pt`).
       string unit = 2;
     }
 
-    // Text anchor indexing into the [Document.text][google.cloud.documentai.v1beta2.Document.text].
+    // Text anchor indexing into the
+    // [Document.text][google.cloud.documentai.v1beta2.Document.text].
     TextAnchor text_anchor = 1;
 
     // Text color.
@@ -96,21 +105,26 @@ message Document {
     // Text background color.
     google.type.Color background_color = 3;
 
-    // Font weight. Possible values are normal, bold, bolder, and lighter.
-    // https://www.w3schools.com/cssref/pr_font_weight.asp
+    // [Font weight](https://www.w3schools.com/cssref/pr_font_weight.asp).
+    // Possible values are `normal`, `bold`, `bolder`, and `lighter`.
     string font_weight = 4;
 
-    // Text style. Possible values are normal, italic, and oblique.
-    // https://www.w3schools.com/cssref/pr_font_font-style.asp
+    // [Text style](https://www.w3schools.com/cssref/pr_font_font-style.asp).
+    // Possible values are `normal`, `italic`, and `oblique`.
     string text_style = 5;
 
-    // Text decoration. Follows CSS standard.
-    //   
-    // https://www.w3schools.com/cssref/pr_text_text-decoration.asp
+    // [Text
+    // decoration](https://www.w3schools.com/cssref/pr_text_text-decoration.asp).
+    // Follows CSS standard.  
+    // 
     string text_decoration = 6;
 
     // Font size.
     FontSize font_size = 7;
+
+    // Font family such as `Arial`, `Times New Roman`.
+    // https://www.w3schools.com/cssref/pr_font_font-family.asp
+    string font_family = 8;
   }
 
   // A page in a [Document][google.cloud.documentai.v1beta2.Document].
@@ -127,6 +141,42 @@ message Document {
       string unit = 3;
     }
 
+    // Rendered image contents for this page.
+    message Image {
+      // Raw byte content of the image.
+      bytes content = 1;
+
+      // Encoding [media type (MIME
+      // type)](https://www.iana.org/assignments/media-types/media-types.xhtml)
+      // for the image.
+      string mime_type = 2;
+
+      // Width of the image in pixels.
+      int32 width = 3;
+
+      // Height of the image in pixels.
+      int32 height = 4;
+    }
+
+    // Representation for transformation matrix, intended to be compatible and
+    // used with OpenCV format for image manipulation.
+    message Matrix {
+      // Number of rows in the matrix.
+      int32 rows = 1;
+
+      // Number of columns in the matrix.
+      int32 cols = 2;
+
+      // This encodes information about what data type the matrix uses.
+      // For example, 0 (CV_8U) is an unsigned 8-bit image. For the full list
+      // of OpenCV primitive data types, please refer to
+      // https://docs.opencv.org/4.3.0/d1/d1b/group__core__hal__interface.html
+      int32 type = 3;
+
+      // The matrix data.
+      bytes data = 4;
+    }
+
     // Visual element describing a layout unit on a page.
     message Layout {
       // Detected human reading orientation.
@@ -150,56 +200,71 @@ message Document {
         PAGE_LEFT = 4;
       }
 
-      // Text anchor indexing into the [Document.text][google.cloud.documentai.v1beta2.Document.text].
+      // Text anchor indexing into the
+      // [Document.text][google.cloud.documentai.v1beta2.Document.text].
       TextAnchor text_anchor = 1;
 
-      // Confidence of the current [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] within context of the object this
-      // layout is for. e.g. confidence can be for a single token, a table,
-      // a visual element, etc. depending on context. Range [0, 1].
+      // Confidence of the current
+      // [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] within
+      // context of the object this layout is for. e.g. confidence can be for a
+      // single token, a table, a visual element, etc. depending on context.
+      // Range `[0, 1]`.
       float confidence = 2;
 
-      // The bounding polygon for the [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout].
+      // The bounding polygon for the
+      // [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout].
       BoundingPoly bounding_poly = 3;
 
-      // Detected orientation for the [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout].
+      // Detected orientation for the
+      // [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout].
       Orientation orientation = 4;
-
-      // Optional. This is the identifier used by referencing [PageAnchor][google.cloud.documentai.v1beta2.Document.PageAnchor]s.
-      string id = 5 [(google.api.field_behavior) = OPTIONAL];
     }
 
     // A block has a set of lines (collected into paragraphs) that have a
     // common line-spacing and orientation.
     message Block {
-      // [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [Block][google.cloud.documentai.v1beta2.Document.Page.Block].
+      // [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+      // [Block][google.cloud.documentai.v1beta2.Document.Page.Block].
       Layout layout = 1;
 
       // A list of detected languages together with confidence.
       repeated DetectedLanguage detected_languages = 2;
+
+      // The history of this annotation.
+      Provenance provenance = 3 [deprecated = true];
     }
 
     // A collection of lines that a human would perceive as a paragraph.
     message Paragraph {
-      // [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [Paragraph][google.cloud.documentai.v1beta2.Document.Page.Paragraph].
+      // [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+      // [Paragraph][google.cloud.documentai.v1beta2.Document.Page.Paragraph].
       Layout layout = 1;
 
       // A list of detected languages together with confidence.
       repeated DetectedLanguage detected_languages = 2;
+
+      // The  history of this annotation.
+      Provenance provenance = 3 [deprecated = true];
     }
 
     // A collection of tokens that a human would perceive as a line.
     // Does not cross column boundaries, can be horizontal, vertical, etc.
     message Line {
-      // [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [Line][google.cloud.documentai.v1beta2.Document.Page.Line].
+      // [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+      // [Line][google.cloud.documentai.v1beta2.Document.Page.Line].
       Layout layout = 1;
 
       // A list of detected languages together with confidence.
       repeated DetectedLanguage detected_languages = 2;
+
+      // The  history of this annotation.
+      Provenance provenance = 3 [deprecated = true];
     }
 
     // A detected token.
     message Token {
-      // Detected break at the end of a [Token][google.cloud.documentai.v1beta2.Document.Page.Token].
+      // Detected break at the end of a
+      // [Token][google.cloud.documentai.v1beta2.Document.Page.Token].
       message DetectedBreak {
         // Enum to denote the type of break found.
         enum Type {
@@ -220,23 +285,96 @@ message Document {
         Type type = 1;
       }
 
-      // [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [Token][google.cloud.documentai.v1beta2.Document.Page.Token].
+      // Font and other text style attributes.
+      message StyleInfo {
+        // Font size in points (`1` point is `¹⁄₇₂` inches).
+        int32 font_size = 1;
+
+        // Font size in pixels, equal to _unrounded
+        // [font_size][google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo.font_size]_
+        // * _resolution_ ÷ `72.0`.
+        double pixel_font_size = 2;
+
+        // Letter spacing in points.
+        double letter_spacing = 3;
+
+        // Name or style of the font.
+        string font_type = 4;
+
+        // Whether the text is bold (equivalent to
+        // [font_weight][google.cloud.documentai.v1beta2.Document.Page.Token.StyleInfo.font_weight]
+        // is at least `700`).
+        bool bold = 5;
+
+        // Whether the text is italic.
+        bool italic = 6;
+
+        // Whether the text is underlined.
+        bool underlined = 7;
+
+        // Whether the text is strikethrough.
+        bool strikeout = 8;
+
+        // Whether the text is a subscript.
+        bool subscript = 9;
+
+        // Whether the text is a superscript.
+        bool superscript = 10;
+
+        // Whether the text is in small caps.
+        bool smallcaps = 11;
+
+        // TrueType weight on a scale `100` (thin) to `1000` (ultra-heavy).
+        // Normal is `400`, bold is `700`.
+        int32 font_weight = 12;
+
+        // Whether the text is handwritten.
+        bool handwritten = 13;
+
+        // Color of the text.
+        google.type.Color text_color = 14;
+
+        // Color of the background.
+        google.type.Color background_color = 15;
+      }
+
+      // [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+      // [Token][google.cloud.documentai.v1beta2.Document.Page.Token].
       Layout layout = 1;
 
-      // Detected break at the end of a [Token][google.cloud.documentai.v1beta2.Document.Page.Token].
+      // Detected break at the end of a
+      // [Token][google.cloud.documentai.v1beta2.Document.Page.Token].
       DetectedBreak detected_break = 2;
 
       // A list of detected languages together with confidence.
       repeated DetectedLanguage detected_languages = 3;
+
+      // The history of this annotation.
+      Provenance provenance = 4 [deprecated = true];
+
+      // Text style attributes.
+      StyleInfo style_info = 5;
+    }
+
+    // A detected symbol.
+    message Symbol {
+      // [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+      // [Symbol][google.cloud.documentai.v1beta2.Document.Page.Symbol].
+      Layout layout = 1;
+
+      // A list of detected languages together with confidence.
+      repeated DetectedLanguage detected_languages = 2;
     }
 
     // Detected non-text visual elements e.g. checkbox, signature etc. on the
     // page.
     message VisualElement {
-      // [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [VisualElement][google.cloud.documentai.v1beta2.Document.Page.VisualElement].
+      // [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+      // [VisualElement][google.cloud.documentai.v1beta2.Document.Page.VisualElement].
       Layout layout = 1;
 
-      // Type of the [VisualElement][google.cloud.documentai.v1beta2.Document.Page.VisualElement].
+      // Type of the
+      // [VisualElement][google.cloud.documentai.v1beta2.Document.Page.VisualElement].
       string type = 2;
 
       // A list of detected languages together with confidence.
@@ -253,7 +391,8 @@ message Document {
 
       // A cell representation inside the table.
       message TableCell {
-        // [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [TableCell][google.cloud.documentai.v1beta2.Document.Page.Table.TableCell].
+        // [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+        // [TableCell][google.cloud.documentai.v1beta2.Document.Page.Table.TableCell].
         Layout layout = 1;
 
         // How many rows this cell spans.
@@ -266,7 +405,8 @@ message Document {
         repeated DetectedLanguage detected_languages = 4;
       }
 
-      // [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for [Table][google.cloud.documentai.v1beta2.Document.Page.Table].
+      // [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+      // [Table][google.cloud.documentai.v1beta2.Document.Page.Table].
       Layout layout = 1;
 
       // Header rows of the table.
@@ -277,15 +417,21 @@ message Document {
 
       // A list of detected languages together with confidence.
       repeated DetectedLanguage detected_languages = 4;
+
+      // The history of this table.
+      Provenance provenance = 5 [deprecated = true];
     }
 
     // A form field detected on the page.
     message FormField {
-      // [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for the [FormField][google.cloud.documentai.v1beta2.Document.Page.FormField] name. e.g. `Address`, `Email`,
-      // `Grand total`, `Phone number`, etc.
+      // [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for the
+      // [FormField][google.cloud.documentai.v1beta2.Document.Page.FormField]
+      // name. e.g. `Address`, `Email`, `Grand total`, `Phone number`, etc.
       Layout field_name = 1;
 
-      // [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for the [FormField][google.cloud.documentai.v1beta2.Document.Page.FormField] value.
+      // [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for the
+      // [FormField][google.cloud.documentai.v1beta2.Document.Page.FormField]
+      // value.
       Layout field_value = 2;
 
       // A list of detected languages for name together with confidence.
@@ -296,38 +442,98 @@ message Document {
 
       // If the value is non-textual, this field represents the type. Current
       // valid values are:
-      // - blank (this indicates the field_value is normal text)
-      // - "unfilled_checkbox"
-      // - "filled_checkbox"
+      //
+      // - blank (this indicates the `field_value` is normal text)
+      // - `unfilled_checkbox`
+      // - `filled_checkbox`
       string value_type = 5;
 
-      // An internal field, created for Labeling UI to export key text.
+      // Created for Labeling UI to export key text.
+      // If corrections were made to the text identified by the
+      // `field_name.text_anchor`, this field will contain the correction.
       string corrected_key_text = 6;
 
-      // An internal field, created for Labeling UI to export value text.
+      // Created for Labeling UI to export value text.
+      // If corrections were made to the text identified by the
+      // `field_value.text_anchor`, this field will contain the correction.
       string corrected_value_text = 7;
+
+      // The history of this annotation.
+      Provenance provenance = 8;
+    }
+
+    // A detected barcode.
+    message DetectedBarcode {
+      // [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for
+      // [DetectedBarcode][google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode].
+      Layout layout = 1;
+
+      // Detailed barcode information of the
+      // [DetectedBarcode][google.cloud.documentai.v1beta2.Document.Page.DetectedBarcode].
+      Barcode barcode = 2;
     }
 
     // Detected language for a structural component.
     message DetectedLanguage {
-      // The BCP-47 language code, such as "en-US" or "sr-Latn". For more
-      // information, see
-      // http://www.unicode.org/reports/tr35/#Unicode_locale_identifier.
+      // The [BCP-47 language
+      // code](https://www.unicode.org/reports/tr35/#Unicode_locale_identifier),
+      // such as `en-US` or `sr-Latn`.
       string language_code = 1;
 
-      // Confidence of detected language. Range [0, 1].
+      // Confidence of detected language. Range `[0, 1]`.
       float confidence = 2;
     }
 
-    // 1-based index for current [Page][google.cloud.documentai.v1beta2.Document.Page] in a parent [Document][google.cloud.documentai.v1beta2.Document].
-    // Useful when a page is taken out of a [Document][google.cloud.documentai.v1beta2.Document] for individual
-    // processing.
+    // Image quality scores for the page image.
+    message ImageQualityScores {
+      // Image Quality Defects
+      message DetectedDefect {
+        // Name of the defect type. Supported values are:
+        //
+        // - `quality/defect_blurry`
+        // - `quality/defect_noisy`
+        // - `quality/defect_dark`
+        // - `quality/defect_faint`
+        // - `quality/defect_text_too_small`
+        // - `quality/defect_document_cutoff`
+        // - `quality/defect_text_cutoff`
+        // - `quality/defect_glare`
+        string type = 1;
+
+        // Confidence of detected defect. Range `[0, 1]` where `1` indicates
+        // strong confidence that the defect exists.
+        float confidence = 2;
+      }
+
+      // The overall quality score. Range `[0, 1]` where `1` is perfect quality.
+      float quality_score = 1;
+
+      // A list of detected defects.
+      repeated DetectedDefect detected_defects = 2;
+    }
+
+    // 1-based index for current
+    // [Page][google.cloud.documentai.v1beta2.Document.Page] in a parent
+    // [Document][google.cloud.documentai.v1beta2.Document]. Useful when a page
+    // is taken out of a [Document][google.cloud.documentai.v1beta2.Document]
+    // for individual processing.
     int32 page_number = 1;
 
+    // Rendered image for this page. This image is preprocessed to remove any
+    // skew, rotation, and distortions such that the annotation bounding boxes
+    // can be upright and axis-aligned.
+    Image image = 13;
+
+    // Transformation matrices that were applied to the original document image
+    // to produce
+    // [Page.image][google.cloud.documentai.v1beta2.Document.Page.image].
+    repeated Matrix transforms = 14;
+
     // Physical dimension of the page.
     Dimension dimension = 2;
 
-    // [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for the page.
+    // [Layout][google.cloud.documentai.v1beta2.Document.Page.Layout] for the
+    // page.
     Layout layout = 3;
 
     // A list of detected languages together with confidence.
@@ -358,37 +564,118 @@ message Document {
 
     // A list of visually detected form fields on the page.
     repeated FormField form_fields = 11;
+
+    // A list of visually detected symbols on the page.
+    repeated Symbol symbols = 12;
+
+    // A list of detected barcodes.
+    repeated DetectedBarcode detected_barcodes = 15;
+
+    // Image quality scores.
+    ImageQualityScores image_quality_scores = 17;
+
+    // The history of this page.
+    Provenance provenance = 16 [deprecated = true];
   }
 
-  // A phrase in the text that is a known entity type, such as a person, an
-  // organization, or location.
+  // An entity that could be a phrase in the text or a property that belongs to
+  // the document. It is a known entity type, such as a person, an organization,
+  // or location.
   message Entity {
-    // Provenance of the entity.
-    // Text anchor indexing into the [Document.text][google.cloud.documentai.v1beta2.Document.text].
-    TextAnchor text_anchor = 1;
+    // Parsed and normalized entity value.
+    message NormalizedValue {
+      // An optional structured entity value.
+      // Must match entity type defined in schema if
+      // known. If this field is present, the `text` field could also be
+      // populated.
+      oneof structured_value {
+        // Money value. See also:
+        // https://github.com/googleapis/googleapis/blob/master/google/type/money.proto
+        google.type.Money money_value = 2;
+
+        // Date value. Includes year, month, day. See also:
+        // https://github.com/googleapis/googleapis/blob/master/google/type/date.proto
+        google.type.Date date_value = 3;
+
+        // DateTime value. Includes date, time, and timezone. See also:
+        // https://github.com/googleapis/googleapis/blob/master/google/type/datetime.proto
+        google.type.DateTime datetime_value = 4;
+
+        // Postal address. See also:
+        // https://github.com/googleapis/googleapis/blob/master/google/type/postal_address.proto
+        google.type.PostalAddress address_value = 5;
+
+        // Boolean value. Can be used for entities with binary values, or for
+        // checkboxes.
+        bool boolean_value = 6;
+
+        // Integer value.
+        int32 integer_value = 7;
+
+        // Float value.
+        float float_value = 8;
+      }
+
+      // Optional. An optional field to store a normalized string.
+      // For some entity types, one of respective `structured_value` fields may
+      // also be populated. Also not all the types of `structured_value` will be
+      // normalized. For example, some processors may not generate `float`
+      // or `integer` normalized text by default.
+      //
+      // Below are sample formats mapped to structured values.
+      //
+      // - Money/Currency type (`money_value`) is in the ISO 4217 text format.
+      // - Date type (`date_value`) is in the ISO 8601 text format.
+      // - Datetime type (`datetime_value`) is in the ISO 8601 text format.
+      string text = 1 [(google.api.field_behavior) = OPTIONAL];
+    }
+
+    // Optional. Provenance of the entity.
+    // Text anchor indexing into the
+    // [Document.text][google.cloud.documentai.v1beta2.Document.text].
+    TextAnchor text_anchor = 1 [(google.api.field_behavior) = OPTIONAL];
 
     // Required. Entity type from a schema e.g. `Address`.
     string type = 2 [(google.api.field_behavior) = REQUIRED];
 
-    // Text value in the document e.g. `1600 Amphitheatre Pkwy`.
-    string mention_text = 3;
+    // Optional. Text value of the entity e.g. `1600 Amphitheatre Pkwy`.
+    string mention_text = 3 [(google.api.field_behavior) = OPTIONAL];
 
-    // Deprecated.  Use `id` field instead.
-    string mention_id = 4;
+    // Optional. Deprecated.  Use `id` field instead.
+    string mention_id = 4 [(google.api.field_behavior) = OPTIONAL];
 
-    // Optional. Confidence of detected Schema entity. Range [0, 1].
+    // Optional. Confidence of detected Schema entity. Range `[0, 1]`.
     float confidence = 5 [(google.api.field_behavior) = OPTIONAL];
 
-    // Optional. Represents the provenance of this entity wrt. the location on the
-    // page where it was found.
+    // Optional. Represents the provenance of this entity wrt. the location on
+    // the page where it was found.
     PageAnchor page_anchor = 6 [(google.api.field_behavior) = OPTIONAL];
 
     // Optional. Canonical id. This will be a unique value in the entity list
     // for this document.
     string id = 7 [(google.api.field_behavior) = OPTIONAL];
+
+    // Optional. Normalized entity value. Absent if the extracted value could
+    // not be converted or the type (e.g. address) is not supported for certain
+    // parsers. This field is also only populated for certain supported document
+    // types.
+    NormalizedValue normalized_value = 9
+        [(google.api.field_behavior) = OPTIONAL];
+
+    // Optional. Entities can be nested to form a hierarchical data structure
+    // representing the content in the document.
+    repeated Entity properties = 10 [(google.api.field_behavior) = OPTIONAL];
+
+    // Optional. The history of this annotation.
+    Provenance provenance = 11 [(google.api.field_behavior) = OPTIONAL];
+
+    // Optional. Whether the entity will be redacted for de-identification
+    // purposes.
+    bool redacted = 12 [(google.api.field_behavior) = OPTIONAL];
   }
 
-  // Relationship between [Entities][google.cloud.documentai.v1beta2.Document.Entity].
+  // Relationship between
+  // [Entities][google.cloud.documentai.v1beta2.Document.Entity].
   message EntityRelation {
     // Subject entity id.
     string subject_id = 1;
@@ -400,29 +687,40 @@ message Document {
     string relation = 3;
   }
 
-  // Text reference indexing into the [Document.text][google.cloud.documentai.v1beta2.Document.text].
+  // Text reference indexing into the
+  // [Document.text][google.cloud.documentai.v1beta2.Document.text].
   message TextAnchor {
-    // A text segment in the [Document.text][google.cloud.documentai.v1beta2.Document.text]. The indices may be out of bounds
-    // which indicate that the text extends into another document shard for
-    // large sharded documents. See [ShardInfo.text_offset][google.cloud.documentai.v1beta2.Document.ShardInfo.text_offset]
+    // A text segment in the
+    // [Document.text][google.cloud.documentai.v1beta2.Document.text]. The
+    // indices may be out of bounds which indicate that the text extends into
+    // another document shard for large sharded documents. See
+    // [ShardInfo.text_offset][google.cloud.documentai.v1beta2.Document.ShardInfo.text_offset]
     message TextSegment {
-      // [TextSegment][google.cloud.documentai.v1beta2.Document.TextAnchor.TextSegment] start UTF-8 char index in the [Document.text][google.cloud.documentai.v1beta2.Document.text].
+      // [TextSegment][google.cloud.documentai.v1beta2.Document.TextAnchor.TextSegment]
+      // start UTF-8 char index in the
+      // [Document.text][google.cloud.documentai.v1beta2.Document.text].
       int64 start_index = 1;
 
-      // [TextSegment][google.cloud.documentai.v1beta2.Document.TextAnchor.TextSegment] half open end UTF-8 char index in the
+      // [TextSegment][google.cloud.documentai.v1beta2.Document.TextAnchor.TextSegment]
+      // half open end UTF-8 char index in the
       // [Document.text][google.cloud.documentai.v1beta2.Document.text].
       int64 end_index = 2;
     }
 
-    // The text segments from the [Document.text][google.cloud.documentai.v1beta2.Document.text].
+    // The text segments from the
+    // [Document.text][google.cloud.documentai.v1beta2.Document.text].
     repeated TextSegment text_segments = 1;
 
     // Contains the content of the text span so that users do
-    // not have to look it up in the text_segments.
+    // not have to look it up in the text_segments.  It is always
+    // populated for formFields.
     string content = 2;
   }
 
-  // Referencing elements in [Document.pages][google.cloud.documentai.v1beta2.Document.pages].
+  // Referencing the visual context of the entity in the
+  // [Document.pages][google.cloud.documentai.v1beta2.Document.pages]. Page
+  // anchors can be cross-page, consist of multiple bounding polygons and
+  // optionally reference specific layout element types.
   message PageAnchor {
     // Represents a weak reference to a page element within a document.
     message PageRef {
@@ -431,81 +729,243 @@ message Document {
         // Layout Unspecified.
         LAYOUT_TYPE_UNSPECIFIED = 0;
 
-        // References a [Page.blocks][google.cloud.documentai.v1beta2.Document.Page.blocks] element.
+        // References a
+        // [Page.blocks][google.cloud.documentai.v1beta2.Document.Page.blocks]
+        // element.
         BLOCK = 1;
 
-        // References a [Page.paragraphs][google.cloud.documentai.v1beta2.Document.Page.paragraphs] element.
+        // References a
+        // [Page.paragraphs][google.cloud.documentai.v1beta2.Document.Page.paragraphs]
+        // element.
         PARAGRAPH = 2;
 
-        // References a [Page.lines][google.cloud.documentai.v1beta2.Document.Page.lines] element.
+        // References a
+        // [Page.lines][google.cloud.documentai.v1beta2.Document.Page.lines]
+        // element.
         LINE = 3;
 
-        // References a [Page.tokens][google.cloud.documentai.v1beta2.Document.Page.tokens] element.
+        // References a
+        // [Page.tokens][google.cloud.documentai.v1beta2.Document.Page.tokens]
+        // element.
         TOKEN = 4;
 
-        // References a [Page.visual_elements][google.cloud.documentai.v1beta2.Document.Page.visual_elements] element.
+        // References a
+        // [Page.visual_elements][google.cloud.documentai.v1beta2.Document.Page.visual_elements]
+        // element.
         VISUAL_ELEMENT = 5;
 
-        // Refrrences a [Page.tables][google.cloud.documentai.v1beta2.Document.Page.tables] element.
+        // Refrrences a
+        // [Page.tables][google.cloud.documentai.v1beta2.Document.Page.tables]
+        // element.
         TABLE = 6;
 
-        // References a [Page.form_fields][google.cloud.documentai.v1beta2.Document.Page.form_fields] element.
+        // References a
+        // [Page.form_fields][google.cloud.documentai.v1beta2.Document.Page.form_fields]
+        // element.
         FORM_FIELD = 7;
       }
 
-      // Required. Index into the [Document.pages][google.cloud.documentai.v1beta2.Document.pages] element
+      // Required. Index into the
+      // [Document.pages][google.cloud.documentai.v1beta2.Document.pages]
+      // element, for example using
+      // `[Document.pages][page_refs.page]` to locate the related page element.
+      // This field is skipped when its value is the default `0`. See
+      // https://developers.google.com/protocol-buffers/docs/proto3#json.
       int64 page = 1 [(google.api.field_behavior) = REQUIRED];
 
-      // Optional. The type of the layout element that is being referenced.  If not
-      // specified the whole page is assumed to be referenced.
+      // Optional. The type of the layout element that is being referenced if
+      // any.
       LayoutType layout_type = 2 [(google.api.field_behavior) = OPTIONAL];
 
-      // Optional. The [Page.Layout.id][google.cloud.documentai.v1beta2.Document.Page.Layout.id] on the page that this element
-      // references.  If [LayoutRef.type][] is specified this id must also be
-      // specified.
-      string layout_id = 3 [(google.api.field_behavior) = OPTIONAL];
+      // Optional. Deprecated.  Use
+      // [PageRef.bounding_poly][google.cloud.documentai.v1beta2.Document.PageAnchor.PageRef.bounding_poly]
+      // instead.
+      string layout_id = 3
+          [deprecated = true, (google.api.field_behavior) = OPTIONAL];
+
+      // Optional. Identifies the bounding polygon of a layout element on the
+      // page.
+      BoundingPoly bounding_poly = 4 [(google.api.field_behavior) = OPTIONAL];
+
+      // Optional. Confidence of detected page element, if applicable. Range
+      // `[0, 1]`.
+      float confidence = 5 [(google.api.field_behavior) = OPTIONAL];
     }
 
     // One or more references to visual page elements
     repeated PageRef page_refs = 1;
   }
 
+  // Structure to identify provenance relationships between annotations in
+  // different revisions.
+  message Provenance {
+    // The parent element the current element is based on. Used for
+    // referencing/aligning, removal and replacement operations.
+    message Parent {
+      // The index of the index into current revision's parent_ids list.
+      int32 revision = 1;
+
+      // The index of the parent item in the corresponding item list (eg. list
+      // of entities, properties within entities, etc.) in the parent revision.
+      int32 index = 3;
+
+      // The id of the parent provenance.
+      int32 id = 2 [deprecated = true];
+    }
+
+    // If a processor or agent does an explicit operation on existing elements.
+    enum OperationType {
+      // Operation type unspecified. If no operation is specified a provenance
+      // entry is simply used to match against a `parent`.
+      OPERATION_TYPE_UNSPECIFIED = 0;
+
+      // Add an element.
+      ADD = 1;
+
+      // Remove an element identified by `parent`.
+      REMOVE = 2;
+
+      // Updates any fields within the given provenance scope of the message. It
+      // overwrites the fields rather than replacing them.  Use this when you
+      // want to update a field value of an entity without also updating all the
+      // child properties.
+      UPDATE = 7;
+
+      // Currently unused. Replace an element identified by `parent`.
+      REPLACE = 3;
+
+      // Deprecated. Request human review for the element identified by
+      // `parent`.
+      EVAL_REQUESTED = 4 [deprecated = true];
+
+      // Deprecated. Element is reviewed and approved at human review,
+      // confidence will be set to 1.0.
+      EVAL_APPROVED = 5 [deprecated = true];
+
+      // Deprecated. Element is skipped in the validation process.
+      EVAL_SKIPPED = 6 [deprecated = true];
+    }
+
+    // The index of the revision that produced this element.
+    int32 revision = 1 [deprecated = true];
+
+    // The Id of this operation.  Needs to be unique within the scope of the
+    // revision.
+    int32 id = 2 [deprecated = true];
+
+    // References to the original elements that are replaced.
+    repeated Parent parents = 3;
+
+    // The type of provenance operation.
+    OperationType type = 4;
+  }
+
+  // Contains past or forward revisions of this document.
+  message Revision {
+    // Human Review information of the document.
+    message HumanReview {
+      // Human review state. e.g. `requested`, `succeeded`, `rejected`.
+      string state = 1;
+
+      // A message providing more details about the current state of processing.
+      // For example, the rejection reason when the state is `rejected`.
+      string state_message = 2;
+    }
+
+    // Who/what made the change
+    oneof source {
+      // If the change was made by a person specify the name or id of that
+      // person.
+      string agent = 4;
+
+      // If the annotation was made by processor identify the processor by its
+      // resource name.
+      string processor = 5;
+    }
+
+    // Id of the revision, internally generated by doc proto storage.
+    // Unique within the context of the document.
+    string id = 1;
+
+    // The revisions that this revision is based on.  This can include one or
+    // more parent (when documents are merged.)  This field represents the
+    // index into the `revisions` field.
+    repeated int32 parent = 2 [deprecated = true];
+
+    // The revisions that this revision is based on. Must include all the ids
+    // that have anything to do with this revision - eg. there are
+    // `provenance.parent.revision` fields that index into this field.
+    repeated string parent_ids = 7;
+
+    // The time that the revision was created, internally generated by
+    // doc proto storage at the time of create.
+    google.protobuf.Timestamp create_time = 3;
+
+    // Human Review information of this revision.
+    HumanReview human_review = 6;
+  }
+
+  // This message is used for text changes aka. OCR corrections.
+  message TextChange {
+    // Provenance of the correction.
+    // Text anchor indexing into the
+    // [Document.text][google.cloud.documentai.v1beta2.Document.text].  There
+    // can only be a single `TextAnchor.text_segments` element.  If the start
+    // and end index of the text segment are the same, the text change is
+    // inserted before that index.
+    TextAnchor text_anchor = 1;
+
+    // The text that replaces the text identified in the `text_anchor`.
+    string changed_text = 2;
+
+    // The history of this annotation.
+    repeated Provenance provenance = 3 [deprecated = true];
+  }
+
   // Original source document from the user.
   oneof source {
-    // Currently supports Google Cloud Storage URI of the form
-    //    `gs://bucket_name/object_name`. Object versioning is not supported.
-    //    See [Google Cloud Storage Request
-    //    URIs](https://cloud.google.com/storage/docs/reference-uris) for more
-    //    info.
-    string uri = 1;
-
-    // Inline document content, represented as a stream of bytes.
+    // Optional. Currently supports Google Cloud Storage URI of the form
+    // `gs://bucket_name/object_name`. Object versioning is not supported.
+    // For more information, refer to [Google Cloud Storage Request
+    // URIs](https://cloud.google.com/storage/docs/reference-uris).
+    string uri = 1 [(google.api.field_behavior) = OPTIONAL];
+
+    // Optional. Inline document content, represented as a stream of bytes.
     // Note: As with all `bytes` fields, protobuffers use a pure binary
     // representation, whereas JSON representations use base64.
-    bytes content = 2;
+    bytes content = 2 [(google.api.field_behavior) = OPTIONAL];
   }
 
-  // An IANA published MIME type (also referred to as media type). For more
-  // information, see
-  // https://www.iana.org/assignments/media-types/media-types.xhtml.
+  // An IANA published [media type (MIME
+  // type)](https://www.iana.org/assignments/media-types/media-types.xhtml).
   string mime_type = 3;
 
-  // UTF-8 encoded text in reading order from the document.
-  string text = 4;
+  // Optional. UTF-8 encoded text in reading order from the document.
+  string text = 4 [(google.api.field_behavior) = OPTIONAL];
 
-  // Styles for the [Document.text][google.cloud.documentai.v1beta2.Document.text].
-  repeated Style text_styles = 5;
+  // Styles for the
+  // [Document.text][google.cloud.documentai.v1beta2.Document.text].
+  repeated Style text_styles = 5 [deprecated = true];
 
-  // Visual page layout for the [Document][google.cloud.documentai.v1beta2.Document].
+  // Visual page layout for the
+  // [Document][google.cloud.documentai.v1beta2.Document].
   repeated Page pages = 6;
 
-  // A list of entities detected on [Document.text][google.cloud.documentai.v1beta2.Document.text]. For document shards,
-  // entities in this list may cross shard boundaries.
+  // A list of entities detected on
+  // [Document.text][google.cloud.documentai.v1beta2.Document.text]. For
+  // document shards, entities in this list may cross shard boundaries.
   repeated Entity entities = 7;
 
-  // Relationship among [Document.entities][google.cloud.documentai.v1beta2.Document.entities].
+  // Placeholder.  Relationship among
+  // [Document.entities][google.cloud.documentai.v1beta2.Document.entities].
   repeated EntityRelation entity_relations = 8;
 
+  // Placeholder.  A list of text corrections made to
+  // [Document.text][google.cloud.documentai.v1beta2.Document.text].  This is
+  // usually used for annotating corrections to OCR mistakes.  Text changes for
+  // a given revision may not overlap with each other.
+  repeated TextChange text_changes = 14;
+
   // Information about the sharding if this document is sharded part of a larger
   // document. If the document is not sharded, this message is not specified.
   ShardInfo shard_info = 9;
@@ -515,4 +975,7 @@ message Document {
 
   // Any error that occurred while processing this document.
   google.rpc.Status error = 10;
+
+  // Placeholder. Revision history of this document.
+  repeated Revision revisions = 13;
 }
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/proto/google/cloud/documentai/v1beta2/document_understanding.proto b/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/proto/google/cloud/documentai/v1beta2/document_understanding.proto
index 19cb22da6a41..cdfff1bd01b9 100644
--- a/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/proto/google/cloud/documentai/v1beta2/document_understanding.proto
+++ b/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/proto/google/cloud/documentai/v1beta2/document_understanding.proto
@@ -1,4 +1,4 @@
-// Copyright 2020 Google LLC
+// Copyright 2023 Google LLC
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
@@ -37,11 +37,13 @@ option ruby_package = "Google::Cloud::DocumentAI::V1beta2";
 // computer vision, and translation.
 service DocumentUnderstandingService {
   option (google.api.default_host) = "documentai.googleapis.com";
-  option (google.api.oauth_scopes) = "https://www.googleapis.com/auth/cloud-platform";
+  option (google.api.oauth_scopes) =
+      "https://www.googleapis.com/auth/cloud-platform";
 
   // LRO endpoint to batch process many documents. The output is written
   // to Cloud Storage as JSON in the [Document] format.
-  rpc BatchProcessDocuments(BatchProcessDocumentsRequest) returns (google.longrunning.Operation) {
+  rpc BatchProcessDocuments(BatchProcessDocumentsRequest)
+      returns (google.longrunning.Operation) {
     option (google.api.http) = {
       post: "/v1beta2/{parent=projects/*/locations/*}/documents:batchProcess"
       body: "*"
@@ -74,7 +76,8 @@ service DocumentUnderstandingService {
 // is written to Cloud Storage as JSON in the [Document] format.
 message BatchProcessDocumentsRequest {
   // Required. Individual requests for each document.
-  repeated ProcessDocumentRequest requests = 1 [(google.api.field_behavior) = REQUIRED];
+  repeated ProcessDocumentRequest requests = 1
+      [(google.api.field_behavior) = REQUIRED];
 
   // Target project and location to make a call.
   //
@@ -97,9 +100,9 @@ message ProcessDocumentRequest {
   // Required. Information about the input file.
   InputConfig input_config = 1 [(google.api.field_behavior) = REQUIRED];
 
-  // Optional. The desired output location. This field is only needed in
+  // The desired output location. This field is only needed in
   // BatchProcessDocumentsRequest.
-  OutputConfig output_config = 2 [(google.api.field_behavior) = OPTIONAL];
+  OutputConfig output_config = 2;
 
   // Specifies a known document type for deeper structure detection. Valid
   // values are currently "general" and "invoice". If not provided, "general"\
@@ -165,10 +168,10 @@ message TableExtractionParams {
 
   // Optional. Table bounding box hints that can be provided to complex cases
   // which our algorithm cannot locate the table(s) in.
-  repeated TableBoundHint table_bound_hints = 2 [(google.api.field_behavior) = OPTIONAL];
+  repeated TableBoundHint table_bound_hints = 2
+      [(google.api.field_behavior) = OPTIONAL];
 
-  // Optional. Table header hints. The extraction will bias towards producing
-  // these terms as table headers, which may improve accuracy.
+  // Optional. Reserved for future use.
   repeated string header_hints = 3 [(google.api.field_behavior) = OPTIONAL];
 
   // Model version of the table extraction system. Default is "builtin/stable".
@@ -193,29 +196,18 @@ message FormExtractionParams {
   // Whether to enable form extraction.
   bool enabled = 1;
 
-  // User can provide pairs of (key text, value type) to improve the parsing
-  // result.
-  //
-  // For example, if a document has a field called "Date" that holds a date
-  // value and a field called "Amount" that may hold either a currency value
-  // (e.g., "$500.00") or a simple number value (e.g., "20"), you could use the
-  // following hints: [ {"key": "Date", value_types: [ "DATE"]}, {"key":
-  // "Amount", "value_types": [ "PRICE", "NUMBER" ]} ]
-  //
-  // If the value type is unknown, but you want to provide hints for the keys,
-  // you can leave the value_types field blank. e.g. {"key": "Date",
-  // "value_types": []}
+  // Reserved for future use.
   repeated KeyValuePairHint key_value_pair_hints = 2;
 
   // Model version of the form extraction system. Default is
   // "builtin/stable". Specify "builtin/latest" for the latest model.
-  // For custom form models, specify: “custom/{model_name}". Model name
+  // For custom form models, specify: "custom/{model_name}". Model name
   // format is "bucket_name/path/to/modeldir" corresponding to
   // "gs://bucket_name/path/to/modeldir" where annotated examples are stored.
   string model_version = 3;
 }
 
-// User-provided hint for key value pair.
+// Reserved for future use.
 message KeyValuePairHint {
   // The key text for the hint.
   string key = 1;
@@ -261,11 +253,12 @@ message InputConfig {
     bytes contents = 3;
   }
 
-  // Required. Mimetype of the input. Current supported mimetypes are application/pdf,
-  // image/tiff, and image/gif.
-  // In addition, application/json type is supported for requests with
-  // [ProcessDocumentRequest.automl_params][google.cloud.documentai.v1beta2.ProcessDocumentRequest.automl_params] field set. The JSON file needs to
-  // be in [Document][google.cloud.documentai.v1beta2.Document] format.
+  // Required. Mimetype of the input. Current supported mimetypes are
+  // application/pdf, image/tiff, and image/gif. In addition, application/json
+  // type is supported for requests with
+  // [ProcessDocumentRequest.automl_params][google.cloud.documentai.v1beta2.ProcessDocumentRequest.automl_params]
+  // field set. The JSON file needs to be in
+  // [Document][google.cloud.documentai.v1beta2.Document] format.
   string mime_type = 2 [(google.api.field_behavior) = REQUIRED];
 }
 
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/proto/google/cloud/documentai/v1beta2/geometry.proto b/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/proto/google/cloud/documentai/v1beta2/geometry.proto
index 060e5105912f..5f24584604b0 100644
--- a/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/proto/google/cloud/documentai/v1beta2/geometry.proto
+++ b/java-document-ai/proto-google-cloud-document-ai-v1beta2/src/main/proto/google/cloud/documentai/v1beta2/geometry.proto
@@ -1,4 +1,4 @@
-// Copyright 2020 Google LLC
+// Copyright 2023 Google LLC
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
@@ -16,7 +16,6 @@ syntax = "proto3";
 
 package google.cloud.documentai.v1beta2;
 
-
 option csharp_namespace = "Google.Cloud.DocumentAI.V1Beta2";
 option go_package = "cloud.google.com/go/documentai/apiv1beta2/documentaipb;documentaipb";
 option java_multiple_files = true;
@@ -31,7 +30,7 @@ message Vertex {
   // X coordinate.
   int32 x = 1;
 
-  // Y coordinate.
+  // Y coordinate (starts from the top of the image).
   int32 y = 2;
 }
 
@@ -42,7 +41,7 @@ message NormalizedVertex {
   // X coordinate.
   float x = 1;
 
-  // Y coordinate.
+  // Y coordinate (starts from the top of the image).
   float y = 2;
 }
 
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/BatchDatasetDocuments.java b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/BatchDatasetDocuments.java
new file mode 100644
index 000000000000..d88b6bafd805
--- /dev/null
+++ b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/BatchDatasetDocuments.java
@@ -0,0 +1,2237 @@
+/*
+ * Copyright 2023 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/documentai/v1beta3/dataset.proto
+
+package com.google.cloud.documentai.v1beta3;
+
+/**
+ *
+ *
+ * 
+ * Dataset documents that the batch operation will be applied to.
+ * 

+ *
+ * Protobuf type {@code google.cloud.documentai.v1beta3.BatchDatasetDocuments}
+ */
+public final class BatchDatasetDocuments extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.documentai.v1beta3.BatchDatasetDocuments)
+    BatchDatasetDocumentsOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use BatchDatasetDocuments.newBuilder() to construct.
+  private BatchDatasetDocuments(com.google.protobuf.GeneratedMessageV3.Builder builder) {
+    super(builder);
+  }
+
+  private BatchDatasetDocuments() {}
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new BatchDatasetDocuments();
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.documentai.v1beta3.DatasetProto
+        .internal_static_google_cloud_documentai_v1beta3_BatchDatasetDocuments_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.documentai.v1beta3.DatasetProto
+        .internal_static_google_cloud_documentai_v1beta3_BatchDatasetDocuments_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.class,
+            com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.Builder.class);
+  }
+
+  public interface IndividualDocumentIdsOrBuilder
+      extends
+      // @@protoc_insertion_point(interface_extends:google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds)
+      com.google.protobuf.MessageOrBuilder {
+
+    /**
+     *
+     *
+     * 
+     * Required. List of Document IDs indicating where the actual documents are
+     * stored.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta3.DocumentId document_ids = 1 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    java.util.List getDocumentIdsList();
+    /**
+     *
+     *
+     * 
+     * Required. List of Document IDs indicating where the actual documents are
+     * stored.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta3.DocumentId document_ids = 1 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    com.google.cloud.documentai.v1beta3.DocumentId getDocumentIds(int index);
+    /**
+     *
+     *
+     * 
+     * Required. List of Document IDs indicating where the actual documents are
+     * stored.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta3.DocumentId document_ids = 1 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    int getDocumentIdsCount();
+    /**
+     *
+     *
+     * 
+     * Required. List of Document IDs indicating where the actual documents are
+     * stored.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta3.DocumentId document_ids = 1 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    java.util.List
+        getDocumentIdsOrBuilderList();
+    /**
+     *
+     *
+     * 
+     * Required. List of Document IDs indicating where the actual documents are
+     * stored.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta3.DocumentId document_ids = 1 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    com.google.cloud.documentai.v1beta3.DocumentIdOrBuilder getDocumentIdsOrBuilder(int index);
+  }
+  /**
+   *
+   *
+   * 
+   * List of individual DocumentIds.
+   * 

+   *
+   * Protobuf type {@code
+   * google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds}
+   */
+  public static final class IndividualDocumentIds extends com.google.protobuf.GeneratedMessageV3
+      implements
+      // @@protoc_insertion_point(message_implements:google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds)
+      IndividualDocumentIdsOrBuilder {
+    private static final long serialVersionUID = 0L;
+    // Use IndividualDocumentIds.newBuilder() to construct.
+    private IndividualDocumentIds(com.google.protobuf.GeneratedMessageV3.Builder builder) {
+      super(builder);
+    }
+
+    private IndividualDocumentIds() {
+      documentIds_ = java.util.Collections.emptyList();
+    }
+
+    @java.lang.Override
+    @SuppressWarnings({"unused"})
+    protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+      return new IndividualDocumentIds();
+    }
+
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.documentai.v1beta3.DatasetProto
+          .internal_static_google_cloud_documentai_v1beta3_BatchDatasetDocuments_IndividualDocumentIds_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.documentai.v1beta3.DatasetProto
+          .internal_static_google_cloud_documentai_v1beta3_BatchDatasetDocuments_IndividualDocumentIds_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds.class,
+              com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds
+                  .Builder.class);
+    }
+
+    public static final int DOCUMENT_IDS_FIELD_NUMBER = 1;
+
+    @SuppressWarnings("serial")
+    private java.util.List documentIds_;
+    /**
+     *
+     *
+     * 
+     * Required. List of Document IDs indicating where the actual documents are
+     * stored.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta3.DocumentId document_ids = 1 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    @java.lang.Override
+    public java.util.List getDocumentIdsList() {
+      return documentIds_;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. List of Document IDs indicating where the actual documents are
+     * stored.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta3.DocumentId document_ids = 1 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    @java.lang.Override
+    public java.util.List
+        getDocumentIdsOrBuilderList() {
+      return documentIds_;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. List of Document IDs indicating where the actual documents are
+     * stored.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta3.DocumentId document_ids = 1 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    @java.lang.Override
+    public int getDocumentIdsCount() {
+      return documentIds_.size();
+    }
+    /**
+     *
+     *
+     * 
+     * Required. List of Document IDs indicating where the actual documents are
+     * stored.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta3.DocumentId document_ids = 1 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta3.DocumentId getDocumentIds(int index) {
+      return documentIds_.get(index);
+    }
+    /**
+     *
+     *
+     * 
+     * Required. List of Document IDs indicating where the actual documents are
+     * stored.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta3.DocumentId document_ids = 1 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta3.DocumentIdOrBuilder getDocumentIdsOrBuilder(
+        int index) {
+      return documentIds_.get(index);
+    }
+
+    private byte memoizedIsInitialized = -1;
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      byte isInitialized = memoizedIsInitialized;
+      if (isInitialized == 1) return true;
+      if (isInitialized == 0) return false;
+
+      memoizedIsInitialized = 1;
+      return true;
+    }
+
+    @java.lang.Override
+    public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+      for (int i = 0; i < documentIds_.size(); i++) {
+        output.writeMessage(1, documentIds_.get(i));
+      }
+      getUnknownFields().writeTo(output);
+    }
+
+    @java.lang.Override
+    public int getSerializedSize() {
+      int size = memoizedSize;
+      if (size != -1) return size;
+
+      size = 0;
+      for (int i = 0; i < documentIds_.size(); i++) {
+        size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, documentIds_.get(i));
+      }
+      size += getUnknownFields().getSerializedSize();
+      memoizedSize = size;
+      return size;
+    }
+
+    @java.lang.Override
+    public boolean equals(final java.lang.Object obj) {
+      if (obj == this) {
+        return true;
+      }
+      if (!(obj
+          instanceof
+          com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds)) {
+        return super.equals(obj);
+      }
+      com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds other =
+          (com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds) obj;
+
+      if (!getDocumentIdsList().equals(other.getDocumentIdsList())) return false;
+      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
+      return true;
+    }
+
+    @java.lang.Override
+    public int hashCode() {
+      if (memoizedHashCode != 0) {
+        return memoizedHashCode;
+      }
+      int hash = 41;
+      hash = (19 * hash) + getDescriptor().hashCode();
+      if (getDocumentIdsCount() > 0) {
+        hash = (37 * hash) + DOCUMENT_IDS_FIELD_NUMBER;
+        hash = (53 * hash) + getDocumentIdsList().hashCode();
+      }
+      hash = (29 * hash) + getUnknownFields().hashCode();
+      memoizedHashCode = hash;
+      return hash;
+    }
+
+    public static com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds
+        parseFrom(java.nio.ByteBuffer data)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds
+        parseFrom(
+            java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds
+        parseFrom(com.google.protobuf.ByteString data)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds
+        parseFrom(
+            com.google.protobuf.ByteString data,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds
+        parseFrom(byte[] data) throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds
+        parseFrom(byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds
+        parseFrom(java.io.InputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds
+        parseFrom(
+            java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    public static com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds
+        parseDelimitedFrom(java.io.InputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds
+        parseDelimitedFrom(
+            java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    public static com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds
+        parseFrom(com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds
+        parseFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    @java.lang.Override
+    public Builder newBuilderForType() {
+      return newBuilder();
+    }
+
+    public static Builder newBuilder() {
+      return DEFAULT_INSTANCE.toBuilder();
+    }
+
+    public static Builder newBuilder(
+        com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds prototype) {
+      return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+    }
+
+    @java.lang.Override
+    public Builder toBuilder() {
+      return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+    }
+
+    @java.lang.Override
+    protected Builder newBuilderForType(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      Builder builder = new Builder(parent);
+      return builder;
+    }
+    /**
+     *
+     *
+     * 
+     * List of individual DocumentIds.
+     * 

+     *
+     * Protobuf type {@code
+     * google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds}
+     */
+    public static final class Builder
+        extends com.google.protobuf.GeneratedMessageV3.Builder
+        implements
+        // @@protoc_insertion_point(builder_implements:google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds)
+        com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIdsOrBuilder {
+      public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+        return com.google.cloud.documentai.v1beta3.DatasetProto
+            .internal_static_google_cloud_documentai_v1beta3_BatchDatasetDocuments_IndividualDocumentIds_descriptor;
+      }
+
+      @java.lang.Override
+      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+          internalGetFieldAccessorTable() {
+        return com.google.cloud.documentai.v1beta3.DatasetProto
+            .internal_static_google_cloud_documentai_v1beta3_BatchDatasetDocuments_IndividualDocumentIds_fieldAccessorTable
+            .ensureFieldAccessorsInitialized(
+                com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds
+                    .class,
+                com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds
+                    .Builder.class);
+      }
+
+      // Construct using
+      // com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds.newBuilder()
+      private Builder() {}
+
+      private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+        super(parent);
+      }
+
+      @java.lang.Override
+      public Builder clear() {
+        super.clear();
+        bitField0_ = 0;
+        if (documentIdsBuilder_ == null) {
+          documentIds_ = java.util.Collections.emptyList();
+        } else {
+          documentIds_ = null;
+          documentIdsBuilder_.clear();
+        }
+        bitField0_ = (bitField0_ & ~0x00000001);
+        return this;
+      }
+
+      @java.lang.Override
+      public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+        return com.google.cloud.documentai.v1beta3.DatasetProto
+            .internal_static_google_cloud_documentai_v1beta3_BatchDatasetDocuments_IndividualDocumentIds_descriptor;
+      }
+
+      @java.lang.Override
+      public com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds
+          getDefaultInstanceForType() {
+        return com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds
+            .getDefaultInstance();
+      }
+
+      @java.lang.Override
+      public com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds
+          build() {
+        com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds result =
+            buildPartial();
+        if (!result.isInitialized()) {
+          throw newUninitializedMessageException(result);
+        }
+        return result;
+      }
+
+      @java.lang.Override
+      public com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds
+          buildPartial() {
+        com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds result =
+            new com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds(
+                this);
+        buildPartialRepeatedFields(result);
+        if (bitField0_ != 0) {
+          buildPartial0(result);
+        }
+        onBuilt();
+        return result;
+      }
+
+      private void buildPartialRepeatedFields(
+          com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds result) {
+        if (documentIdsBuilder_ == null) {
+          if (((bitField0_ & 0x00000001) != 0)) {
+            documentIds_ = java.util.Collections.unmodifiableList(documentIds_);
+            bitField0_ = (bitField0_ & ~0x00000001);
+          }
+          result.documentIds_ = documentIds_;
+        } else {
+          result.documentIds_ = documentIdsBuilder_.build();
+        }
+      }
+
+      private void buildPartial0(
+          com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds result) {
+        int from_bitField0_ = bitField0_;
+      }
+
+      @java.lang.Override
+      public Builder clone() {
+        return super.clone();
+      }
+
+      @java.lang.Override
+      public Builder setField(
+          com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+        return super.setField(field, value);
+      }
+
+      @java.lang.Override
+      public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+        return super.clearField(field);
+      }
+
+      @java.lang.Override
+      public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+        return super.clearOneof(oneof);
+      }
+
+      @java.lang.Override
+      public Builder setRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field,
+          int index,
+          java.lang.Object value) {
+        return super.setRepeatedField(field, index, value);
+      }
+
+      @java.lang.Override
+      public Builder addRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+        return super.addRepeatedField(field, value);
+      }
+
+      @java.lang.Override
+      public Builder mergeFrom(com.google.protobuf.Message other) {
+        if (other
+            instanceof
+            com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds) {
+          return mergeFrom(
+              (com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds)
+                  other);
+        } else {
+          super.mergeFrom(other);
+          return this;
+        }
+      }
+
+      public Builder mergeFrom(
+          com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds other) {
+        if (other
+            == com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds
+                .getDefaultInstance()) return this;
+        if (documentIdsBuilder_ == null) {
+          if (!other.documentIds_.isEmpty()) {
+            if (documentIds_.isEmpty()) {
+              documentIds_ = other.documentIds_;
+              bitField0_ = (bitField0_ & ~0x00000001);
+            } else {
+              ensureDocumentIdsIsMutable();
+              documentIds_.addAll(other.documentIds_);
+            }
+            onChanged();
+          }
+        } else {
+          if (!other.documentIds_.isEmpty()) {
+            if (documentIdsBuilder_.isEmpty()) {
+              documentIdsBuilder_.dispose();
+              documentIdsBuilder_ = null;
+              documentIds_ = other.documentIds_;
+              bitField0_ = (bitField0_ & ~0x00000001);
+              documentIdsBuilder_ =
+                  com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders
+                      ? getDocumentIdsFieldBuilder()
+                      : null;
+            } else {
+              documentIdsBuilder_.addAllMessages(other.documentIds_);
+            }
+          }
+        }
+        this.mergeUnknownFields(other.getUnknownFields());
+        onChanged();
+        return this;
+      }
+
+      @java.lang.Override
+      public final boolean isInitialized() {
+        return true;
+      }
+
+      @java.lang.Override
+      public Builder mergeFrom(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+        if (extensionRegistry == null) {
+          throw new java.lang.NullPointerException();
+        }
+        try {
+          boolean done = false;
+          while (!done) {
+            int tag = input.readTag();
+            switch (tag) {
+              case 0:
+                done = true;
+                break;
+              case 10:
+                {
+                  com.google.cloud.documentai.v1beta3.DocumentId m =
+                      input.readMessage(
+                          com.google.cloud.documentai.v1beta3.DocumentId.parser(),
+                          extensionRegistry);
+                  if (documentIdsBuilder_ == null) {
+                    ensureDocumentIdsIsMutable();
+                    documentIds_.add(m);
+                  } else {
+                    documentIdsBuilder_.addMessage(m);
+                  }
+                  break;
+                } // case 10
+              default:
+                {
+                  if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                    done = true; // was an endgroup tag
+                  }
+                  break;
+                } // default:
+            } // switch (tag)
+          } // while (!done)
+        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          throw e.unwrapIOException();
+        } finally {
+          onChanged();
+        } // finally
+        return this;
+      }
+
+      private int bitField0_;
+
+      private java.util.List documentIds_ =
+          java.util.Collections.emptyList();
+
+      private void ensureDocumentIdsIsMutable() {
+        if (!((bitField0_ & 0x00000001) != 0)) {
+          documentIds_ =
+              new java.util.ArrayList(documentIds_);
+          bitField0_ |= 0x00000001;
+        }
+      }
+
+      private com.google.protobuf.RepeatedFieldBuilderV3<
+              com.google.cloud.documentai.v1beta3.DocumentId,
+              com.google.cloud.documentai.v1beta3.DocumentId.Builder,
+              com.google.cloud.documentai.v1beta3.DocumentIdOrBuilder>
+          documentIdsBuilder_;
+
+      /**
+       *
+       *
+       * 
+       * Required. List of Document IDs indicating where the actual documents are
+       * stored.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta3.DocumentId document_ids = 1 [(.google.api.field_behavior) = REQUIRED];
+       * 
+       */
+      public java.util.List getDocumentIdsList() {
+        if (documentIdsBuilder_ == null) {
+          return java.util.Collections.unmodifiableList(documentIds_);
+        } else {
+          return documentIdsBuilder_.getMessageList();
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * Required. List of Document IDs indicating where the actual documents are
+       * stored.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta3.DocumentId document_ids = 1 [(.google.api.field_behavior) = REQUIRED];
+       * 
+       */
+      public int getDocumentIdsCount() {
+        if (documentIdsBuilder_ == null) {
+          return documentIds_.size();
+        } else {
+          return documentIdsBuilder_.getCount();
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * Required. List of Document IDs indicating where the actual documents are
+       * stored.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta3.DocumentId document_ids = 1 [(.google.api.field_behavior) = REQUIRED];
+       * 
+       */
+      public com.google.cloud.documentai.v1beta3.DocumentId getDocumentIds(int index) {
+        if (documentIdsBuilder_ == null) {
+          return documentIds_.get(index);
+        } else {
+          return documentIdsBuilder_.getMessage(index);
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * Required. List of Document IDs indicating where the actual documents are
+       * stored.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta3.DocumentId document_ids = 1 [(.google.api.field_behavior) = REQUIRED];
+       * 
+       */
+      public Builder setDocumentIds(
+          int index, com.google.cloud.documentai.v1beta3.DocumentId value) {
+        if (documentIdsBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          ensureDocumentIdsIsMutable();
+          documentIds_.set(index, value);
+          onChanged();
+        } else {
+          documentIdsBuilder_.setMessage(index, value);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * Required. List of Document IDs indicating where the actual documents are
+       * stored.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta3.DocumentId document_ids = 1 [(.google.api.field_behavior) = REQUIRED];
+       * 
+       */
+      public Builder setDocumentIds(
+          int index, com.google.cloud.documentai.v1beta3.DocumentId.Builder builderForValue) {
+        if (documentIdsBuilder_ == null) {
+          ensureDocumentIdsIsMutable();
+          documentIds_.set(index, builderForValue.build());
+          onChanged();
+        } else {
+          documentIdsBuilder_.setMessage(index, builderForValue.build());
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * Required. List of Document IDs indicating where the actual documents are
+       * stored.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta3.DocumentId document_ids = 1 [(.google.api.field_behavior) = REQUIRED];
+       * 
+       */
+      public Builder addDocumentIds(com.google.cloud.documentai.v1beta3.DocumentId value) {
+        if (documentIdsBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          ensureDocumentIdsIsMutable();
+          documentIds_.add(value);
+          onChanged();
+        } else {
+          documentIdsBuilder_.addMessage(value);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * Required. List of Document IDs indicating where the actual documents are
+       * stored.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta3.DocumentId document_ids = 1 [(.google.api.field_behavior) = REQUIRED];
+       * 
+       */
+      public Builder addDocumentIds(
+          int index, com.google.cloud.documentai.v1beta3.DocumentId value) {
+        if (documentIdsBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          ensureDocumentIdsIsMutable();
+          documentIds_.add(index, value);
+          onChanged();
+        } else {
+          documentIdsBuilder_.addMessage(index, value);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * Required. List of Document IDs indicating where the actual documents are
+       * stored.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta3.DocumentId document_ids = 1 [(.google.api.field_behavior) = REQUIRED];
+       * 
+       */
+      public Builder addDocumentIds(
+          com.google.cloud.documentai.v1beta3.DocumentId.Builder builderForValue) {
+        if (documentIdsBuilder_ == null) {
+          ensureDocumentIdsIsMutable();
+          documentIds_.add(builderForValue.build());
+          onChanged();
+        } else {
+          documentIdsBuilder_.addMessage(builderForValue.build());
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * Required. List of Document IDs indicating where the actual documents are
+       * stored.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta3.DocumentId document_ids = 1 [(.google.api.field_behavior) = REQUIRED];
+       * 
+       */
+      public Builder addDocumentIds(
+          int index, com.google.cloud.documentai.v1beta3.DocumentId.Builder builderForValue) {
+        if (documentIdsBuilder_ == null) {
+          ensureDocumentIdsIsMutable();
+          documentIds_.add(index, builderForValue.build());
+          onChanged();
+        } else {
+          documentIdsBuilder_.addMessage(index, builderForValue.build());
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * Required. List of Document IDs indicating where the actual documents are
+       * stored.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta3.DocumentId document_ids = 1 [(.google.api.field_behavior) = REQUIRED];
+       * 
+       */
+      public Builder addAllDocumentIds(
+          java.lang.Iterable values) {
+        if (documentIdsBuilder_ == null) {
+          ensureDocumentIdsIsMutable();
+          com.google.protobuf.AbstractMessageLite.Builder.addAll(values, documentIds_);
+          onChanged();
+        } else {
+          documentIdsBuilder_.addAllMessages(values);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * Required. List of Document IDs indicating where the actual documents are
+       * stored.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta3.DocumentId document_ids = 1 [(.google.api.field_behavior) = REQUIRED];
+       * 
+       */
+      public Builder clearDocumentIds() {
+        if (documentIdsBuilder_ == null) {
+          documentIds_ = java.util.Collections.emptyList();
+          bitField0_ = (bitField0_ & ~0x00000001);
+          onChanged();
+        } else {
+          documentIdsBuilder_.clear();
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * Required. List of Document IDs indicating where the actual documents are
+       * stored.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta3.DocumentId document_ids = 1 [(.google.api.field_behavior) = REQUIRED];
+       * 
+       */
+      public Builder removeDocumentIds(int index) {
+        if (documentIdsBuilder_ == null) {
+          ensureDocumentIdsIsMutable();
+          documentIds_.remove(index);
+          onChanged();
+        } else {
+          documentIdsBuilder_.remove(index);
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * Required. List of Document IDs indicating where the actual documents are
+       * stored.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta3.DocumentId document_ids = 1 [(.google.api.field_behavior) = REQUIRED];
+       * 
+       */
+      public com.google.cloud.documentai.v1beta3.DocumentId.Builder getDocumentIdsBuilder(
+          int index) {
+        return getDocumentIdsFieldBuilder().getBuilder(index);
+      }
+      /**
+       *
+       *
+       * 
+       * Required. List of Document IDs indicating where the actual documents are
+       * stored.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta3.DocumentId document_ids = 1 [(.google.api.field_behavior) = REQUIRED];
+       * 
+       */
+      public com.google.cloud.documentai.v1beta3.DocumentIdOrBuilder getDocumentIdsOrBuilder(
+          int index) {
+        if (documentIdsBuilder_ == null) {
+          return documentIds_.get(index);
+        } else {
+          return documentIdsBuilder_.getMessageOrBuilder(index);
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * Required. List of Document IDs indicating where the actual documents are
+       * stored.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta3.DocumentId document_ids = 1 [(.google.api.field_behavior) = REQUIRED];
+       * 
+       */
+      public java.util.List
+          getDocumentIdsOrBuilderList() {
+        if (documentIdsBuilder_ != null) {
+          return documentIdsBuilder_.getMessageOrBuilderList();
+        } else {
+          return java.util.Collections.unmodifiableList(documentIds_);
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * Required. List of Document IDs indicating where the actual documents are
+       * stored.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta3.DocumentId document_ids = 1 [(.google.api.field_behavior) = REQUIRED];
+       * 
+       */
+      public com.google.cloud.documentai.v1beta3.DocumentId.Builder addDocumentIdsBuilder() {
+        return getDocumentIdsFieldBuilder()
+            .addBuilder(com.google.cloud.documentai.v1beta3.DocumentId.getDefaultInstance());
+      }
+      /**
+       *
+       *
+       * 
+       * Required. List of Document IDs indicating where the actual documents are
+       * stored.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta3.DocumentId document_ids = 1 [(.google.api.field_behavior) = REQUIRED];
+       * 
+       */
+      public com.google.cloud.documentai.v1beta3.DocumentId.Builder addDocumentIdsBuilder(
+          int index) {
+        return getDocumentIdsFieldBuilder()
+            .addBuilder(index, com.google.cloud.documentai.v1beta3.DocumentId.getDefaultInstance());
+      }
+      /**
+       *
+       *
+       * 
+       * Required. List of Document IDs indicating where the actual documents are
+       * stored.
+       * 

+       *
+       * 
+       * repeated .google.cloud.documentai.v1beta3.DocumentId document_ids = 1 [(.google.api.field_behavior) = REQUIRED];
+       * 
+       */
+      public java.util.List
+          getDocumentIdsBuilderList() {
+        return getDocumentIdsFieldBuilder().getBuilderList();
+      }
+
+      private com.google.protobuf.RepeatedFieldBuilderV3<
+              com.google.cloud.documentai.v1beta3.DocumentId,
+              com.google.cloud.documentai.v1beta3.DocumentId.Builder,
+              com.google.cloud.documentai.v1beta3.DocumentIdOrBuilder>
+          getDocumentIdsFieldBuilder() {
+        if (documentIdsBuilder_ == null) {
+          documentIdsBuilder_ =
+              new com.google.protobuf.RepeatedFieldBuilderV3<
+                  com.google.cloud.documentai.v1beta3.DocumentId,
+                  com.google.cloud.documentai.v1beta3.DocumentId.Builder,
+                  com.google.cloud.documentai.v1beta3.DocumentIdOrBuilder>(
+                  documentIds_,
+                  ((bitField0_ & 0x00000001) != 0),
+                  getParentForChildren(),
+                  isClean());
+          documentIds_ = null;
+        }
+        return documentIdsBuilder_;
+      }
+
+      @java.lang.Override
+      public final Builder setUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.setUnknownFields(unknownFields);
+      }
+
+      @java.lang.Override
+      public final Builder mergeUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.mergeUnknownFields(unknownFields);
+      }
+
+      // @@protoc_insertion_point(builder_scope:google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds)
+    }
+
+    // @@protoc_insertion_point(class_scope:google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds)
+    private static final com.google.cloud.documentai.v1beta3.BatchDatasetDocuments
+            .IndividualDocumentIds
+        DEFAULT_INSTANCE;
+
+    static {
+      DEFAULT_INSTANCE =
+          new com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds();
+    }
+
+    public static com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds
+        getDefaultInstance() {
+      return DEFAULT_INSTANCE;
+    }
+
+    private static final com.google.protobuf.Parser PARSER =
+        new com.google.protobuf.AbstractParser() {
+          @java.lang.Override
+          public IndividualDocumentIds parsePartialFrom(
+              com.google.protobuf.CodedInputStream input,
+              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+              throws com.google.protobuf.InvalidProtocolBufferException {
+            Builder builder = newBuilder();
+            try {
+              builder.mergeFrom(input, extensionRegistry);
+            } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+              throw e.setUnfinishedMessage(builder.buildPartial());
+            } catch (com.google.protobuf.UninitializedMessageException e) {
+              throw e.asInvalidProtocolBufferException()
+                  .setUnfinishedMessage(builder.buildPartial());
+            } catch (java.io.IOException e) {
+              throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                  .setUnfinishedMessage(builder.buildPartial());
+            }
+            return builder.buildPartial();
+          }
+        };
+
+    public static com.google.protobuf.Parser parser() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Parser getParserForType() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds
+        getDefaultInstanceForType() {
+      return DEFAULT_INSTANCE;
+    }
+  }
+
+  private int criteriaCase_ = 0;
+
+  @SuppressWarnings("serial")
+  private java.lang.Object criteria_;
+
+  public enum CriteriaCase
+      implements
+          com.google.protobuf.Internal.EnumLite,
+          com.google.protobuf.AbstractMessage.InternalOneOfEnum {
+    INDIVIDUAL_DOCUMENT_IDS(1),
+    FILTER(2),
+    CRITERIA_NOT_SET(0);
+    private final int value;
+
+    private CriteriaCase(int value) {
+      this.value = value;
+    }
+    /**
+     * @param value The number of the enum to look for.
+     * @return The enum associated with the given number.
+     * @deprecated Use {@link #forNumber(int)} instead.
+     */
+    @java.lang.Deprecated
+    public static CriteriaCase valueOf(int value) {
+      return forNumber(value);
+    }
+
+    public static CriteriaCase forNumber(int value) {
+      switch (value) {
+        case 1:
+          return INDIVIDUAL_DOCUMENT_IDS;
+        case 2:
+          return FILTER;
+        case 0:
+          return CRITERIA_NOT_SET;
+        default:
+          return null;
+      }
+    }
+
+    public int getNumber() {
+      return this.value;
+    }
+  };
+
+  public CriteriaCase getCriteriaCase() {
+    return CriteriaCase.forNumber(criteriaCase_);
+  }
+
+  public static final int INDIVIDUAL_DOCUMENT_IDS_FIELD_NUMBER = 1;
+  /**
+   *
+   *
+   * 
+   * Document identifiers.
+   * 

+   *
+   * 
+   * .google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds individual_document_ids = 1;
+   * 
+   *
+   * @return Whether the individualDocumentIds field is set.
+   */
+  @java.lang.Override
+  public boolean hasIndividualDocumentIds() {
+    return criteriaCase_ == 1;
+  }
+  /**
+   *
+   *
+   * 
+   * Document identifiers.
+   * 

+   *
+   * 
+   * .google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds individual_document_ids = 1;
+   * 
+   *
+   * @return The individualDocumentIds.
+   */
+  @java.lang.Override
+  public com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds
+      getIndividualDocumentIds() {
+    if (criteriaCase_ == 1) {
+      return (com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds)
+          criteria_;
+    }
+    return com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds
+        .getDefaultInstance();
+  }
+  /**
+   *
+   *
+   * 
+   * Document identifiers.
+   * 

+   *
+   * 
+   * .google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds individual_document_ids = 1;
+   * 
+   */
+  @java.lang.Override
+  public com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIdsOrBuilder
+      getIndividualDocumentIdsOrBuilder() {
+    if (criteriaCase_ == 1) {
+      return (com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds)
+          criteria_;
+    }
+    return com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds
+        .getDefaultInstance();
+  }
+
+  public static final int FILTER_FIELD_NUMBER = 2;
+  /**
+   *
+   *
+   * 
+   * A filter matching the documents.
+   * Follows the same format and restriction as
+   * [google.cloud.documentai.master.ListDocumentsRequest.filter].
+   * 

+   *
+   * string filter = 2;
+   *
+   * @return Whether the filter field is set.
+   */
+  public boolean hasFilter() {
+    return criteriaCase_ == 2;
+  }
+  /**
+   *
+   *
+   * 
+   * A filter matching the documents.
+   * Follows the same format and restriction as
+   * [google.cloud.documentai.master.ListDocumentsRequest.filter].
+   * 

+   *
+   * string filter = 2;
+   *
+   * @return The filter.
+   */
+  public java.lang.String getFilter() {
+    java.lang.Object ref = "";
+    if (criteriaCase_ == 2) {
+      ref = criteria_;
+    }
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      if (criteriaCase_ == 2) {
+        criteria_ = s;
+      }
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * 
+   * A filter matching the documents.
+   * Follows the same format and restriction as
+   * [google.cloud.documentai.master.ListDocumentsRequest.filter].
+   * 

+   *
+   * string filter = 2;
+   *
+   * @return The bytes for filter.
+   */
+  public com.google.protobuf.ByteString getFilterBytes() {
+    java.lang.Object ref = "";
+    if (criteriaCase_ == 2) {
+      ref = criteria_;
+    }
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      if (criteriaCase_ == 2) {
+        criteria_ = b;
+      }
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (criteriaCase_ == 1) {
+      output.writeMessage(
+          1,
+          (com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds)
+              criteria_);
+    }
+    if (criteriaCase_ == 2) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 2, criteria_);
+    }
+    getUnknownFields().writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (criteriaCase_ == 1) {
+      size +=
+          com.google.protobuf.CodedOutputStream.computeMessageSize(
+              1,
+              (com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds)
+                  criteria_);
+    }
+    if (criteriaCase_ == 2) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, criteria_);
+    }
+    size += getUnknownFields().getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.documentai.v1beta3.BatchDatasetDocuments)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.documentai.v1beta3.BatchDatasetDocuments other =
+        (com.google.cloud.documentai.v1beta3.BatchDatasetDocuments) obj;
+
+    if (!getCriteriaCase().equals(other.getCriteriaCase())) return false;
+    switch (criteriaCase_) {
+      case 1:
+        if (!getIndividualDocumentIds().equals(other.getIndividualDocumentIds())) return false;
+        break;
+      case 2:
+        if (!getFilter().equals(other.getFilter())) return false;
+        break;
+      case 0:
+      default:
+    }
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    switch (criteriaCase_) {
+      case 1:
+        hash = (37 * hash) + INDIVIDUAL_DOCUMENT_IDS_FIELD_NUMBER;
+        hash = (53 * hash) + getIndividualDocumentIds().hashCode();
+        break;
+      case 2:
+        hash = (37 * hash) + FILTER_FIELD_NUMBER;
+        hash = (53 * hash) + getFilter().hashCode();
+        break;
+      case 0:
+      default:
+    }
+    hash = (29 * hash) + getUnknownFields().hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.documentai.v1beta3.BatchDatasetDocuments parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.BatchDatasetDocuments parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.BatchDatasetDocuments parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.BatchDatasetDocuments parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.BatchDatasetDocuments parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.BatchDatasetDocuments parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.BatchDatasetDocuments parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.BatchDatasetDocuments parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.BatchDatasetDocuments parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.BatchDatasetDocuments parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.BatchDatasetDocuments parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.BatchDatasetDocuments parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.documentai.v1beta3.BatchDatasetDocuments prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * 
+   * Dataset documents that the batch operation will be applied to.
+   * 

+   *
+   * Protobuf type {@code google.cloud.documentai.v1beta3.BatchDatasetDocuments}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.documentai.v1beta3.BatchDatasetDocuments)
+      com.google.cloud.documentai.v1beta3.BatchDatasetDocumentsOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.documentai.v1beta3.DatasetProto
+          .internal_static_google_cloud_documentai_v1beta3_BatchDatasetDocuments_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.documentai.v1beta3.DatasetProto
+          .internal_static_google_cloud_documentai_v1beta3_BatchDatasetDocuments_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.class,
+              com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.Builder.class);
+    }
+
+    // Construct using com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.newBuilder()
+    private Builder() {}
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      bitField0_ = 0;
+      if (individualDocumentIdsBuilder_ != null) {
+        individualDocumentIdsBuilder_.clear();
+      }
+      criteriaCase_ = 0;
+      criteria_ = null;
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.documentai.v1beta3.DatasetProto
+          .internal_static_google_cloud_documentai_v1beta3_BatchDatasetDocuments_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta3.BatchDatasetDocuments getDefaultInstanceForType() {
+      return com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta3.BatchDatasetDocuments build() {
+      com.google.cloud.documentai.v1beta3.BatchDatasetDocuments result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta3.BatchDatasetDocuments buildPartial() {
+      com.google.cloud.documentai.v1beta3.BatchDatasetDocuments result =
+          new com.google.cloud.documentai.v1beta3.BatchDatasetDocuments(this);
+      if (bitField0_ != 0) {
+        buildPartial0(result);
+      }
+      buildPartialOneofs(result);
+      onBuilt();
+      return result;
+    }
+
+    private void buildPartial0(com.google.cloud.documentai.v1beta3.BatchDatasetDocuments result) {
+      int from_bitField0_ = bitField0_;
+    }
+
+    private void buildPartialOneofs(
+        com.google.cloud.documentai.v1beta3.BatchDatasetDocuments result) {
+      result.criteriaCase_ = criteriaCase_;
+      result.criteria_ = this.criteria_;
+      if (criteriaCase_ == 1 && individualDocumentIdsBuilder_ != null) {
+        result.criteria_ = individualDocumentIdsBuilder_.build();
+      }
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.documentai.v1beta3.BatchDatasetDocuments) {
+        return mergeFrom((com.google.cloud.documentai.v1beta3.BatchDatasetDocuments) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.documentai.v1beta3.BatchDatasetDocuments other) {
+      if (other == com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.getDefaultInstance())
+        return this;
+      switch (other.getCriteriaCase()) {
+        case INDIVIDUAL_DOCUMENT_IDS:
+          {
+            mergeIndividualDocumentIds(other.getIndividualDocumentIds());
+            break;
+          }
+        case FILTER:
+          {
+            criteriaCase_ = 2;
+            criteria_ = other.criteria_;
+            onChanged();
+            break;
+          }
+        case CRITERIA_NOT_SET:
+          {
+            break;
+          }
+      }
+      this.mergeUnknownFields(other.getUnknownFields());
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
+      try {
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                input.readMessage(
+                    getIndividualDocumentIdsFieldBuilder().getBuilder(), extensionRegistry);
+                criteriaCase_ = 1;
+                break;
+              } // case 10
+            case 18:
+              {
+                java.lang.String s = input.readStringRequireUtf8();
+                criteriaCase_ = 2;
+                criteria_ = s;
+                break;
+              } // case 18
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        throw e.unwrapIOException();
+      } finally {
+        onChanged();
+      } // finally
+      return this;
+    }
+
+    private int criteriaCase_ = 0;
+    private java.lang.Object criteria_;
+
+    public CriteriaCase getCriteriaCase() {
+      return CriteriaCase.forNumber(criteriaCase_);
+    }
+
+    public Builder clearCriteria() {
+      criteriaCase_ = 0;
+      criteria_ = null;
+      onChanged();
+      return this;
+    }
+
+    private int bitField0_;
+
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds,
+            com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds.Builder,
+            com.google.cloud.documentai.v1beta3.BatchDatasetDocuments
+                .IndividualDocumentIdsOrBuilder>
+        individualDocumentIdsBuilder_;
+    /**
+     *
+     *
+     * 
+     * Document identifiers.
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds individual_document_ids = 1;
+     * 
+     *
+     * @return Whether the individualDocumentIds field is set.
+     */
+    @java.lang.Override
+    public boolean hasIndividualDocumentIds() {
+      return criteriaCase_ == 1;
+    }
+    /**
+     *
+     *
+     * 
+     * Document identifiers.
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds individual_document_ids = 1;
+     * 
+     *
+     * @return The individualDocumentIds.
+     */
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds
+        getIndividualDocumentIds() {
+      if (individualDocumentIdsBuilder_ == null) {
+        if (criteriaCase_ == 1) {
+          return (com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds)
+              criteria_;
+        }
+        return com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds
+            .getDefaultInstance();
+      } else {
+        if (criteriaCase_ == 1) {
+          return individualDocumentIdsBuilder_.getMessage();
+        }
+        return com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds
+            .getDefaultInstance();
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Document identifiers.
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds individual_document_ids = 1;
+     * 
+     */
+    public Builder setIndividualDocumentIds(
+        com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds value) {
+      if (individualDocumentIdsBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        criteria_ = value;
+        onChanged();
+      } else {
+        individualDocumentIdsBuilder_.setMessage(value);
+      }
+      criteriaCase_ = 1;
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Document identifiers.
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds individual_document_ids = 1;
+     * 
+     */
+    public Builder setIndividualDocumentIds(
+        com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds.Builder
+            builderForValue) {
+      if (individualDocumentIdsBuilder_ == null) {
+        criteria_ = builderForValue.build();
+        onChanged();
+      } else {
+        individualDocumentIdsBuilder_.setMessage(builderForValue.build());
+      }
+      criteriaCase_ = 1;
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Document identifiers.
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds individual_document_ids = 1;
+     * 
+     */
+    public Builder mergeIndividualDocumentIds(
+        com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds value) {
+      if (individualDocumentIdsBuilder_ == null) {
+        if (criteriaCase_ == 1
+            && criteria_
+                != com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds
+                    .getDefaultInstance()) {
+          criteria_ =
+              com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds
+                  .newBuilder(
+                      (com.google.cloud.documentai.v1beta3.BatchDatasetDocuments
+                              .IndividualDocumentIds)
+                          criteria_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          criteria_ = value;
+        }
+        onChanged();
+      } else {
+        if (criteriaCase_ == 1) {
+          individualDocumentIdsBuilder_.mergeFrom(value);
+        } else {
+          individualDocumentIdsBuilder_.setMessage(value);
+        }
+      }
+      criteriaCase_ = 1;
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Document identifiers.
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds individual_document_ids = 1;
+     * 
+     */
+    public Builder clearIndividualDocumentIds() {
+      if (individualDocumentIdsBuilder_ == null) {
+        if (criteriaCase_ == 1) {
+          criteriaCase_ = 0;
+          criteria_ = null;
+          onChanged();
+        }
+      } else {
+        if (criteriaCase_ == 1) {
+          criteriaCase_ = 0;
+          criteria_ = null;
+        }
+        individualDocumentIdsBuilder_.clear();
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Document identifiers.
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds individual_document_ids = 1;
+     * 
+     */
+    public com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds.Builder
+        getIndividualDocumentIdsBuilder() {
+      return getIndividualDocumentIdsFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * 
+     * Document identifiers.
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds individual_document_ids = 1;
+     * 
+     */
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIdsOrBuilder
+        getIndividualDocumentIdsOrBuilder() {
+      if ((criteriaCase_ == 1) && (individualDocumentIdsBuilder_ != null)) {
+        return individualDocumentIdsBuilder_.getMessageOrBuilder();
+      } else {
+        if (criteriaCase_ == 1) {
+          return (com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds)
+              criteria_;
+        }
+        return com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds
+            .getDefaultInstance();
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Document identifiers.
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds individual_document_ids = 1;
+     * 
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds,
+            com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds.Builder,
+            com.google.cloud.documentai.v1beta3.BatchDatasetDocuments
+                .IndividualDocumentIdsOrBuilder>
+        getIndividualDocumentIdsFieldBuilder() {
+      if (individualDocumentIdsBuilder_ == null) {
+        if (!(criteriaCase_ == 1)) {
+          criteria_ =
+              com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds
+                  .getDefaultInstance();
+        }
+        individualDocumentIdsBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds,
+                com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds
+                    .Builder,
+                com.google.cloud.documentai.v1beta3.BatchDatasetDocuments
+                    .IndividualDocumentIdsOrBuilder>(
+                (com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds)
+                    criteria_,
+                getParentForChildren(),
+                isClean());
+        criteria_ = null;
+      }
+      criteriaCase_ = 1;
+      onChanged();
+      return individualDocumentIdsBuilder_;
+    }
+
+    /**
+     *
+     *
+     * 
+     * A filter matching the documents.
+     * Follows the same format and restriction as
+     * [google.cloud.documentai.master.ListDocumentsRequest.filter].
+     * 

+     *
+     * string filter = 2;
+     *
+     * @return Whether the filter field is set.
+     */
+    @java.lang.Override
+    public boolean hasFilter() {
+      return criteriaCase_ == 2;
+    }
+    /**
+     *
+     *
+     * 
+     * A filter matching the documents.
+     * Follows the same format and restriction as
+     * [google.cloud.documentai.master.ListDocumentsRequest.filter].
+     * 

+     *
+     * string filter = 2;
+     *
+     * @return The filter.
+     */
+    @java.lang.Override
+    public java.lang.String getFilter() {
+      java.lang.Object ref = "";
+      if (criteriaCase_ == 2) {
+        ref = criteria_;
+      }
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        if (criteriaCase_ == 2) {
+          criteria_ = s;
+        }
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * A filter matching the documents.
+     * Follows the same format and restriction as
+     * [google.cloud.documentai.master.ListDocumentsRequest.filter].
+     * 

+     *
+     * string filter = 2;
+     *
+     * @return The bytes for filter.
+     */
+    @java.lang.Override
+    public com.google.protobuf.ByteString getFilterBytes() {
+      java.lang.Object ref = "";
+      if (criteriaCase_ == 2) {
+        ref = criteria_;
+      }
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        if (criteriaCase_ == 2) {
+          criteria_ = b;
+        }
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * A filter matching the documents.
+     * Follows the same format and restriction as
+     * [google.cloud.documentai.master.ListDocumentsRequest.filter].
+     * 

+     *
+     * string filter = 2;
+     *
+     * @param value The filter to set.
+     * @return This builder for chaining.
+     */
+    public Builder setFilter(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      criteriaCase_ = 2;
+      criteria_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * A filter matching the documents.
+     * Follows the same format and restriction as
+     * [google.cloud.documentai.master.ListDocumentsRequest.filter].
+     * 

+     *
+     * string filter = 2;
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearFilter() {
+      if (criteriaCase_ == 2) {
+        criteriaCase_ = 0;
+        criteria_ = null;
+        onChanged();
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * A filter matching the documents.
+     * Follows the same format and restriction as
+     * [google.cloud.documentai.master.ListDocumentsRequest.filter].
+     * 

+     *
+     * string filter = 2;
+     *
+     * @param value The bytes for filter to set.
+     * @return This builder for chaining.
+     */
+    public Builder setFilterBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+      criteriaCase_ = 2;
+      criteria_ = value;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.documentai.v1beta3.BatchDatasetDocuments)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.documentai.v1beta3.BatchDatasetDocuments)
+  private static final com.google.cloud.documentai.v1beta3.BatchDatasetDocuments DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.documentai.v1beta3.BatchDatasetDocuments();
+  }
+
+  public static com.google.cloud.documentai.v1beta3.BatchDatasetDocuments getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser PARSER =
+      new com.google.protobuf.AbstractParser() {
+        @java.lang.Override
+        public BatchDatasetDocuments parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
+        }
+      };
+
+  public static com.google.protobuf.Parser parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.documentai.v1beta3.BatchDatasetDocuments getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/BatchDatasetDocumentsOrBuilder.java b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/BatchDatasetDocumentsOrBuilder.java
new file mode 100644
index 000000000000..97bad679f8e8
--- /dev/null
+++ b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/BatchDatasetDocumentsOrBuilder.java
@@ -0,0 +1,113 @@
+/*
+ * Copyright 2023 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/documentai/v1beta3/dataset.proto
+
+package com.google.cloud.documentai.v1beta3;
+
+public interface BatchDatasetDocumentsOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.documentai.v1beta3.BatchDatasetDocuments)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * 
+   * Document identifiers.
+   * 

+   *
+   * 
+   * .google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds individual_document_ids = 1;
+   * 
+   *
+   * @return Whether the individualDocumentIds field is set.
+   */
+  boolean hasIndividualDocumentIds();
+  /**
+   *
+   *
+   * 
+   * Document identifiers.
+   * 

+   *
+   * 
+   * .google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds individual_document_ids = 1;
+   * 
+   *
+   * @return The individualDocumentIds.
+   */
+  com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds
+      getIndividualDocumentIds();
+  /**
+   *
+   *
+   * 
+   * Document identifiers.
+   * 

+   *
+   * 
+   * .google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIds individual_document_ids = 1;
+   * 
+   */
+  com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.IndividualDocumentIdsOrBuilder
+      getIndividualDocumentIdsOrBuilder();
+
+  /**
+   *
+   *
+   * 
+   * A filter matching the documents.
+   * Follows the same format and restriction as
+   * [google.cloud.documentai.master.ListDocumentsRequest.filter].
+   * 

+   *
+   * string filter = 2;
+   *
+   * @return Whether the filter field is set.
+   */
+  boolean hasFilter();
+  /**
+   *
+   *
+   * 
+   * A filter matching the documents.
+   * Follows the same format and restriction as
+   * [google.cloud.documentai.master.ListDocumentsRequest.filter].
+   * 

+   *
+   * string filter = 2;
+   *
+   * @return The filter.
+   */
+  java.lang.String getFilter();
+  /**
+   *
+   *
+   * 
+   * A filter matching the documents.
+   * Follows the same format and restriction as
+   * [google.cloud.documentai.master.ListDocumentsRequest.filter].
+   * 

+   *
+   * string filter = 2;
+   *
+   * @return The bytes for filter.
+   */
+  com.google.protobuf.ByteString getFilterBytes();
+
+  com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.CriteriaCase getCriteriaCase();
+}
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/BatchDeleteDocumentsMetadata.java b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/BatchDeleteDocumentsMetadata.java
new file mode 100644
index 000000000000..4c021f659a3b
--- /dev/null
+++ b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/BatchDeleteDocumentsMetadata.java
@@ -0,0 +1,2603 @@
+/*
+ * Copyright 2023 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/documentai/v1beta3/document_service.proto
+
+package com.google.cloud.documentai.v1beta3;
+
+/** Protobuf type {@code google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata} */
+public final class BatchDeleteDocumentsMetadata extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata)
+    BatchDeleteDocumentsMetadataOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use BatchDeleteDocumentsMetadata.newBuilder() to construct.
+  private BatchDeleteDocumentsMetadata(com.google.protobuf.GeneratedMessageV3.Builder builder) {
+    super(builder);
+  }
+
+  private BatchDeleteDocumentsMetadata() {
+    individualBatchDeleteStatuses_ = java.util.Collections.emptyList();
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new BatchDeleteDocumentsMetadata();
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.documentai.v1beta3.DocumentAiDocumentService
+        .internal_static_google_cloud_documentai_v1beta3_BatchDeleteDocumentsMetadata_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.documentai.v1beta3.DocumentAiDocumentService
+        .internal_static_google_cloud_documentai_v1beta3_BatchDeleteDocumentsMetadata_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata.class,
+            com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata.Builder.class);
+  }
+
+  public interface IndividualBatchDeleteStatusOrBuilder
+      extends
+      // @@protoc_insertion_point(interface_extends:google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata.IndividualBatchDeleteStatus)
+      com.google.protobuf.MessageOrBuilder {
+
+    /**
+     *
+     *
+     * 
+     * The document id of the document.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.DocumentId document_id = 1;
+     *
+     * @return Whether the documentId field is set.
+     */
+    boolean hasDocumentId();
+    /**
+     *
+     *
+     * 
+     * The document id of the document.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.DocumentId document_id = 1;
+     *
+     * @return The documentId.
+     */
+    com.google.cloud.documentai.v1beta3.DocumentId getDocumentId();
+    /**
+     *
+     *
+     * 
+     * The document id of the document.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.DocumentId document_id = 1;
+     */
+    com.google.cloud.documentai.v1beta3.DocumentIdOrBuilder getDocumentIdOrBuilder();
+
+    /**
+     *
+     *
+     * 
+     * The status of deleting the document in storage.
+     * 

+     *
+     * .google.rpc.Status status = 2;
+     *
+     * @return Whether the status field is set.
+     */
+    boolean hasStatus();
+    /**
+     *
+     *
+     * 
+     * The status of deleting the document in storage.
+     * 

+     *
+     * .google.rpc.Status status = 2;
+     *
+     * @return The status.
+     */
+    com.google.rpc.Status getStatus();
+    /**
+     *
+     *
+     * 
+     * The status of deleting the document in storage.
+     * 

+     *
+     * .google.rpc.Status status = 2;
+     */
+    com.google.rpc.StatusOrBuilder getStatusOrBuilder();
+  }
+  /**
+   *
+   *
+   * 
+   * The status of each individual document in the batch delete process.
+   * 

+   *
+   * Protobuf type {@code
+   * google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata.IndividualBatchDeleteStatus}
+   */
+  public static final class IndividualBatchDeleteStatus
+      extends com.google.protobuf.GeneratedMessageV3
+      implements
+      // @@protoc_insertion_point(message_implements:google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata.IndividualBatchDeleteStatus)
+      IndividualBatchDeleteStatusOrBuilder {
+    private static final long serialVersionUID = 0L;
+    // Use IndividualBatchDeleteStatus.newBuilder() to construct.
+    private IndividualBatchDeleteStatus(com.google.protobuf.GeneratedMessageV3.Builder builder) {
+      super(builder);
+    }
+
+    private IndividualBatchDeleteStatus() {}
+
+    @java.lang.Override
+    @SuppressWarnings({"unused"})
+    protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+      return new IndividualBatchDeleteStatus();
+    }
+
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.documentai.v1beta3.DocumentAiDocumentService
+          .internal_static_google_cloud_documentai_v1beta3_BatchDeleteDocumentsMetadata_IndividualBatchDeleteStatus_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.documentai.v1beta3.DocumentAiDocumentService
+          .internal_static_google_cloud_documentai_v1beta3_BatchDeleteDocumentsMetadata_IndividualBatchDeleteStatus_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata
+                  .IndividualBatchDeleteStatus.class,
+              com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata
+                  .IndividualBatchDeleteStatus.Builder.class);
+    }
+
+    public static final int DOCUMENT_ID_FIELD_NUMBER = 1;
+    private com.google.cloud.documentai.v1beta3.DocumentId documentId_;
+    /**
+     *
+     *
+     * 
+     * The document id of the document.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.DocumentId document_id = 1;
+     *
+     * @return Whether the documentId field is set.
+     */
+    @java.lang.Override
+    public boolean hasDocumentId() {
+      return documentId_ != null;
+    }
+    /**
+     *
+     *
+     * 
+     * The document id of the document.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.DocumentId document_id = 1;
+     *
+     * @return The documentId.
+     */
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta3.DocumentId getDocumentId() {
+      return documentId_ == null
+          ? com.google.cloud.documentai.v1beta3.DocumentId.getDefaultInstance()
+          : documentId_;
+    }
+    /**
+     *
+     *
+     * 
+     * The document id of the document.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.DocumentId document_id = 1;
+     */
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta3.DocumentIdOrBuilder getDocumentIdOrBuilder() {
+      return documentId_ == null
+          ? com.google.cloud.documentai.v1beta3.DocumentId.getDefaultInstance()
+          : documentId_;
+    }
+
+    public static final int STATUS_FIELD_NUMBER = 2;
+    private com.google.rpc.Status status_;
+    /**
+     *
+     *
+     * 
+     * The status of deleting the document in storage.
+     * 

+     *
+     * .google.rpc.Status status = 2;
+     *
+     * @return Whether the status field is set.
+     */
+    @java.lang.Override
+    public boolean hasStatus() {
+      return status_ != null;
+    }
+    /**
+     *
+     *
+     * 
+     * The status of deleting the document in storage.
+     * 

+     *
+     * .google.rpc.Status status = 2;
+     *
+     * @return The status.
+     */
+    @java.lang.Override
+    public com.google.rpc.Status getStatus() {
+      return status_ == null ? com.google.rpc.Status.getDefaultInstance() : status_;
+    }
+    /**
+     *
+     *
+     * 
+     * The status of deleting the document in storage.
+     * 

+     *
+     * .google.rpc.Status status = 2;
+     */
+    @java.lang.Override
+    public com.google.rpc.StatusOrBuilder getStatusOrBuilder() {
+      return status_ == null ? com.google.rpc.Status.getDefaultInstance() : status_;
+    }
+
+    private byte memoizedIsInitialized = -1;
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      byte isInitialized = memoizedIsInitialized;
+      if (isInitialized == 1) return true;
+      if (isInitialized == 0) return false;
+
+      memoizedIsInitialized = 1;
+      return true;
+    }
+
+    @java.lang.Override
+    public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+      if (documentId_ != null) {
+        output.writeMessage(1, getDocumentId());
+      }
+      if (status_ != null) {
+        output.writeMessage(2, getStatus());
+      }
+      getUnknownFields().writeTo(output);
+    }
+
+    @java.lang.Override
+    public int getSerializedSize() {
+      int size = memoizedSize;
+      if (size != -1) return size;
+
+      size = 0;
+      if (documentId_ != null) {
+        size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, getDocumentId());
+      }
+      if (status_ != null) {
+        size += com.google.protobuf.CodedOutputStream.computeMessageSize(2, getStatus());
+      }
+      size += getUnknownFields().getSerializedSize();
+      memoizedSize = size;
+      return size;
+    }
+
+    @java.lang.Override
+    public boolean equals(final java.lang.Object obj) {
+      if (obj == this) {
+        return true;
+      }
+      if (!(obj
+          instanceof
+          com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata
+              .IndividualBatchDeleteStatus)) {
+        return super.equals(obj);
+      }
+      com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata.IndividualBatchDeleteStatus
+          other =
+              (com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata
+                      .IndividualBatchDeleteStatus)
+                  obj;
+
+      if (hasDocumentId() != other.hasDocumentId()) return false;
+      if (hasDocumentId()) {
+        if (!getDocumentId().equals(other.getDocumentId())) return false;
+      }
+      if (hasStatus() != other.hasStatus()) return false;
+      if (hasStatus()) {
+        if (!getStatus().equals(other.getStatus())) return false;
+      }
+      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
+      return true;
+    }
+
+    @java.lang.Override
+    public int hashCode() {
+      if (memoizedHashCode != 0) {
+        return memoizedHashCode;
+      }
+      int hash = 41;
+      hash = (19 * hash) + getDescriptor().hashCode();
+      if (hasDocumentId()) {
+        hash = (37 * hash) + DOCUMENT_ID_FIELD_NUMBER;
+        hash = (53 * hash) + getDocumentId().hashCode();
+      }
+      if (hasStatus()) {
+        hash = (37 * hash) + STATUS_FIELD_NUMBER;
+        hash = (53 * hash) + getStatus().hashCode();
+      }
+      hash = (29 * hash) + getUnknownFields().hashCode();
+      memoizedHashCode = hash;
+      return hash;
+    }
+
+    public static com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata
+            .IndividualBatchDeleteStatus
+        parseFrom(java.nio.ByteBuffer data)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata
+            .IndividualBatchDeleteStatus
+        parseFrom(
+            java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata
+            .IndividualBatchDeleteStatus
+        parseFrom(com.google.protobuf.ByteString data)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata
+            .IndividualBatchDeleteStatus
+        parseFrom(
+            com.google.protobuf.ByteString data,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata
+            .IndividualBatchDeleteStatus
+        parseFrom(byte[] data) throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata
+            .IndividualBatchDeleteStatus
+        parseFrom(byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata
+            .IndividualBatchDeleteStatus
+        parseFrom(java.io.InputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata
+            .IndividualBatchDeleteStatus
+        parseFrom(
+            java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    public static com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata
+            .IndividualBatchDeleteStatus
+        parseDelimitedFrom(java.io.InputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata
+            .IndividualBatchDeleteStatus
+        parseDelimitedFrom(
+            java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    public static com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata
+            .IndividualBatchDeleteStatus
+        parseFrom(com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata
+            .IndividualBatchDeleteStatus
+        parseFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    @java.lang.Override
+    public Builder newBuilderForType() {
+      return newBuilder();
+    }
+
+    public static Builder newBuilder() {
+      return DEFAULT_INSTANCE.toBuilder();
+    }
+
+    public static Builder newBuilder(
+        com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata.IndividualBatchDeleteStatus
+            prototype) {
+      return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+    }
+
+    @java.lang.Override
+    public Builder toBuilder() {
+      return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+    }
+
+    @java.lang.Override
+    protected Builder newBuilderForType(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      Builder builder = new Builder(parent);
+      return builder;
+    }
+    /**
+     *
+     *
+     * 
+     * The status of each individual document in the batch delete process.
+     * 

+     *
+     * Protobuf type {@code
+     * google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata.IndividualBatchDeleteStatus}
+     */
+    public static final class Builder
+        extends com.google.protobuf.GeneratedMessageV3.Builder
+        implements
+        // @@protoc_insertion_point(builder_implements:google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata.IndividualBatchDeleteStatus)
+        com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata
+            .IndividualBatchDeleteStatusOrBuilder {
+      public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+        return com.google.cloud.documentai.v1beta3.DocumentAiDocumentService
+            .internal_static_google_cloud_documentai_v1beta3_BatchDeleteDocumentsMetadata_IndividualBatchDeleteStatus_descriptor;
+      }
+
+      @java.lang.Override
+      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+          internalGetFieldAccessorTable() {
+        return com.google.cloud.documentai.v1beta3.DocumentAiDocumentService
+            .internal_static_google_cloud_documentai_v1beta3_BatchDeleteDocumentsMetadata_IndividualBatchDeleteStatus_fieldAccessorTable
+            .ensureFieldAccessorsInitialized(
+                com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata
+                    .IndividualBatchDeleteStatus.class,
+                com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata
+                    .IndividualBatchDeleteStatus.Builder.class);
+      }
+
+      // Construct using
+      // com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata.IndividualBatchDeleteStatus.newBuilder()
+      private Builder() {}
+
+      private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+        super(parent);
+      }
+
+      @java.lang.Override
+      public Builder clear() {
+        super.clear();
+        bitField0_ = 0;
+        documentId_ = null;
+        if (documentIdBuilder_ != null) {
+          documentIdBuilder_.dispose();
+          documentIdBuilder_ = null;
+        }
+        status_ = null;
+        if (statusBuilder_ != null) {
+          statusBuilder_.dispose();
+          statusBuilder_ = null;
+        }
+        return this;
+      }
+
+      @java.lang.Override
+      public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+        return com.google.cloud.documentai.v1beta3.DocumentAiDocumentService
+            .internal_static_google_cloud_documentai_v1beta3_BatchDeleteDocumentsMetadata_IndividualBatchDeleteStatus_descriptor;
+      }
+
+      @java.lang.Override
+      public com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata
+              .IndividualBatchDeleteStatus
+          getDefaultInstanceForType() {
+        return com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata
+            .IndividualBatchDeleteStatus.getDefaultInstance();
+      }
+
+      @java.lang.Override
+      public com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata
+              .IndividualBatchDeleteStatus
+          build() {
+        com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata.IndividualBatchDeleteStatus
+            result = buildPartial();
+        if (!result.isInitialized()) {
+          throw newUninitializedMessageException(result);
+        }
+        return result;
+      }
+
+      @java.lang.Override
+      public com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata
+              .IndividualBatchDeleteStatus
+          buildPartial() {
+        com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata.IndividualBatchDeleteStatus
+            result =
+                new com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata
+                    .IndividualBatchDeleteStatus(this);
+        if (bitField0_ != 0) {
+          buildPartial0(result);
+        }
+        onBuilt();
+        return result;
+      }
+
+      private void buildPartial0(
+          com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata
+                  .IndividualBatchDeleteStatus
+              result) {
+        int from_bitField0_ = bitField0_;
+        if (((from_bitField0_ & 0x00000001) != 0)) {
+          result.documentId_ =
+              documentIdBuilder_ == null ? documentId_ : documentIdBuilder_.build();
+        }
+        if (((from_bitField0_ & 0x00000002) != 0)) {
+          result.status_ = statusBuilder_ == null ? status_ : statusBuilder_.build();
+        }
+      }
+
+      @java.lang.Override
+      public Builder clone() {
+        return super.clone();
+      }
+
+      @java.lang.Override
+      public Builder setField(
+          com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+        return super.setField(field, value);
+      }
+
+      @java.lang.Override
+      public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+        return super.clearField(field);
+      }
+
+      @java.lang.Override
+      public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+        return super.clearOneof(oneof);
+      }
+
+      @java.lang.Override
+      public Builder setRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field,
+          int index,
+          java.lang.Object value) {
+        return super.setRepeatedField(field, index, value);
+      }
+
+      @java.lang.Override
+      public Builder addRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+        return super.addRepeatedField(field, value);
+      }
+
+      @java.lang.Override
+      public Builder mergeFrom(com.google.protobuf.Message other) {
+        if (other
+            instanceof
+            com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata
+                .IndividualBatchDeleteStatus) {
+          return mergeFrom(
+              (com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata
+                      .IndividualBatchDeleteStatus)
+                  other);
+        } else {
+          super.mergeFrom(other);
+          return this;
+        }
+      }
+
+      public Builder mergeFrom(
+          com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata
+                  .IndividualBatchDeleteStatus
+              other) {
+        if (other
+            == com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata
+                .IndividualBatchDeleteStatus.getDefaultInstance()) return this;
+        if (other.hasDocumentId()) {
+          mergeDocumentId(other.getDocumentId());
+        }
+        if (other.hasStatus()) {
+          mergeStatus(other.getStatus());
+        }
+        this.mergeUnknownFields(other.getUnknownFields());
+        onChanged();
+        return this;
+      }
+
+      @java.lang.Override
+      public final boolean isInitialized() {
+        return true;
+      }
+
+      @java.lang.Override
+      public Builder mergeFrom(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+        if (extensionRegistry == null) {
+          throw new java.lang.NullPointerException();
+        }
+        try {
+          boolean done = false;
+          while (!done) {
+            int tag = input.readTag();
+            switch (tag) {
+              case 0:
+                done = true;
+                break;
+              case 10:
+                {
+                  input.readMessage(getDocumentIdFieldBuilder().getBuilder(), extensionRegistry);
+                  bitField0_ |= 0x00000001;
+                  break;
+                } // case 10
+              case 18:
+                {
+                  input.readMessage(getStatusFieldBuilder().getBuilder(), extensionRegistry);
+                  bitField0_ |= 0x00000002;
+                  break;
+                } // case 18
+              default:
+                {
+                  if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                    done = true; // was an endgroup tag
+                  }
+                  break;
+                } // default:
+            } // switch (tag)
+          } // while (!done)
+        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          throw e.unwrapIOException();
+        } finally {
+          onChanged();
+        } // finally
+        return this;
+      }
+
+      private int bitField0_;
+
+      private com.google.cloud.documentai.v1beta3.DocumentId documentId_;
+      private com.google.protobuf.SingleFieldBuilderV3<
+              com.google.cloud.documentai.v1beta3.DocumentId,
+              com.google.cloud.documentai.v1beta3.DocumentId.Builder,
+              com.google.cloud.documentai.v1beta3.DocumentIdOrBuilder>
+          documentIdBuilder_;
+      /**
+       *
+       *
+       * 
+       * The document id of the document.
+       * 

+       *
+       * .google.cloud.documentai.v1beta3.DocumentId document_id = 1;
+       *
+       * @return Whether the documentId field is set.
+       */
+      public boolean hasDocumentId() {
+        return ((bitField0_ & 0x00000001) != 0);
+      }
+      /**
+       *
+       *
+       * 
+       * The document id of the document.
+       * 

+       *
+       * .google.cloud.documentai.v1beta3.DocumentId document_id = 1;
+       *
+       * @return The documentId.
+       */
+      public com.google.cloud.documentai.v1beta3.DocumentId getDocumentId() {
+        if (documentIdBuilder_ == null) {
+          return documentId_ == null
+              ? com.google.cloud.documentai.v1beta3.DocumentId.getDefaultInstance()
+              : documentId_;
+        } else {
+          return documentIdBuilder_.getMessage();
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * The document id of the document.
+       * 

+       *
+       * .google.cloud.documentai.v1beta3.DocumentId document_id = 1;
+       */
+      public Builder setDocumentId(com.google.cloud.documentai.v1beta3.DocumentId value) {
+        if (documentIdBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          documentId_ = value;
+        } else {
+          documentIdBuilder_.setMessage(value);
+        }
+        bitField0_ |= 0x00000001;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * The document id of the document.
+       * 

+       *
+       * .google.cloud.documentai.v1beta3.DocumentId document_id = 1;
+       */
+      public Builder setDocumentId(
+          com.google.cloud.documentai.v1beta3.DocumentId.Builder builderForValue) {
+        if (documentIdBuilder_ == null) {
+          documentId_ = builderForValue.build();
+        } else {
+          documentIdBuilder_.setMessage(builderForValue.build());
+        }
+        bitField0_ |= 0x00000001;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * The document id of the document.
+       * 

+       *
+       * .google.cloud.documentai.v1beta3.DocumentId document_id = 1;
+       */
+      public Builder mergeDocumentId(com.google.cloud.documentai.v1beta3.DocumentId value) {
+        if (documentIdBuilder_ == null) {
+          if (((bitField0_ & 0x00000001) != 0)
+              && documentId_ != null
+              && documentId_
+                  != com.google.cloud.documentai.v1beta3.DocumentId.getDefaultInstance()) {
+            getDocumentIdBuilder().mergeFrom(value);
+          } else {
+            documentId_ = value;
+          }
+        } else {
+          documentIdBuilder_.mergeFrom(value);
+        }
+        bitField0_ |= 0x00000001;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * The document id of the document.
+       * 

+       *
+       * .google.cloud.documentai.v1beta3.DocumentId document_id = 1;
+       */
+      public Builder clearDocumentId() {
+        bitField0_ = (bitField0_ & ~0x00000001);
+        documentId_ = null;
+        if (documentIdBuilder_ != null) {
+          documentIdBuilder_.dispose();
+          documentIdBuilder_ = null;
+        }
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * The document id of the document.
+       * 

+       *
+       * .google.cloud.documentai.v1beta3.DocumentId document_id = 1;
+       */
+      public com.google.cloud.documentai.v1beta3.DocumentId.Builder getDocumentIdBuilder() {
+        bitField0_ |= 0x00000001;
+        onChanged();
+        return getDocumentIdFieldBuilder().getBuilder();
+      }
+      /**
+       *
+       *
+       * 
+       * The document id of the document.
+       * 

+       *
+       * .google.cloud.documentai.v1beta3.DocumentId document_id = 1;
+       */
+      public com.google.cloud.documentai.v1beta3.DocumentIdOrBuilder getDocumentIdOrBuilder() {
+        if (documentIdBuilder_ != null) {
+          return documentIdBuilder_.getMessageOrBuilder();
+        } else {
+          return documentId_ == null
+              ? com.google.cloud.documentai.v1beta3.DocumentId.getDefaultInstance()
+              : documentId_;
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * The document id of the document.
+       * 

+       *
+       * .google.cloud.documentai.v1beta3.DocumentId document_id = 1;
+       */
+      private com.google.protobuf.SingleFieldBuilderV3<
+              com.google.cloud.documentai.v1beta3.DocumentId,
+              com.google.cloud.documentai.v1beta3.DocumentId.Builder,
+              com.google.cloud.documentai.v1beta3.DocumentIdOrBuilder>
+          getDocumentIdFieldBuilder() {
+        if (documentIdBuilder_ == null) {
+          documentIdBuilder_ =
+              new com.google.protobuf.SingleFieldBuilderV3<
+                  com.google.cloud.documentai.v1beta3.DocumentId,
+                  com.google.cloud.documentai.v1beta3.DocumentId.Builder,
+                  com.google.cloud.documentai.v1beta3.DocumentIdOrBuilder>(
+                  getDocumentId(), getParentForChildren(), isClean());
+          documentId_ = null;
+        }
+        return documentIdBuilder_;
+      }
+
+      private com.google.rpc.Status status_;
+      private com.google.protobuf.SingleFieldBuilderV3<
+              com.google.rpc.Status, com.google.rpc.Status.Builder, com.google.rpc.StatusOrBuilder>
+          statusBuilder_;
+      /**
+       *
+       *
+       * 
+       * The status of deleting the document in storage.
+       * 

+       *
+       * .google.rpc.Status status = 2;
+       *
+       * @return Whether the status field is set.
+       */
+      public boolean hasStatus() {
+        return ((bitField0_ & 0x00000002) != 0);
+      }
+      /**
+       *
+       *
+       * 
+       * The status of deleting the document in storage.
+       * 

+       *
+       * .google.rpc.Status status = 2;
+       *
+       * @return The status.
+       */
+      public com.google.rpc.Status getStatus() {
+        if (statusBuilder_ == null) {
+          return status_ == null ? com.google.rpc.Status.getDefaultInstance() : status_;
+        } else {
+          return statusBuilder_.getMessage();
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * The status of deleting the document in storage.
+       * 

+       *
+       * .google.rpc.Status status = 2;
+       */
+      public Builder setStatus(com.google.rpc.Status value) {
+        if (statusBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          status_ = value;
+        } else {
+          statusBuilder_.setMessage(value);
+        }
+        bitField0_ |= 0x00000002;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * The status of deleting the document in storage.
+       * 

+       *
+       * .google.rpc.Status status = 2;
+       */
+      public Builder setStatus(com.google.rpc.Status.Builder builderForValue) {
+        if (statusBuilder_ == null) {
+          status_ = builderForValue.build();
+        } else {
+          statusBuilder_.setMessage(builderForValue.build());
+        }
+        bitField0_ |= 0x00000002;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * The status of deleting the document in storage.
+       * 

+       *
+       * .google.rpc.Status status = 2;
+       */
+      public Builder mergeStatus(com.google.rpc.Status value) {
+        if (statusBuilder_ == null) {
+          if (((bitField0_ & 0x00000002) != 0)
+              && status_ != null
+              && status_ != com.google.rpc.Status.getDefaultInstance()) {
+            getStatusBuilder().mergeFrom(value);
+          } else {
+            status_ = value;
+          }
+        } else {
+          statusBuilder_.mergeFrom(value);
+        }
+        bitField0_ |= 0x00000002;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * The status of deleting the document in storage.
+       * 

+       *
+       * .google.rpc.Status status = 2;
+       */
+      public Builder clearStatus() {
+        bitField0_ = (bitField0_ & ~0x00000002);
+        status_ = null;
+        if (statusBuilder_ != null) {
+          statusBuilder_.dispose();
+          statusBuilder_ = null;
+        }
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * The status of deleting the document in storage.
+       * 

+       *
+       * .google.rpc.Status status = 2;
+       */
+      public com.google.rpc.Status.Builder getStatusBuilder() {
+        bitField0_ |= 0x00000002;
+        onChanged();
+        return getStatusFieldBuilder().getBuilder();
+      }
+      /**
+       *
+       *
+       * 
+       * The status of deleting the document in storage.
+       * 

+       *
+       * .google.rpc.Status status = 2;
+       */
+      public com.google.rpc.StatusOrBuilder getStatusOrBuilder() {
+        if (statusBuilder_ != null) {
+          return statusBuilder_.getMessageOrBuilder();
+        } else {
+          return status_ == null ? com.google.rpc.Status.getDefaultInstance() : status_;
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * The status of deleting the document in storage.
+       * 

+       *
+       * .google.rpc.Status status = 2;
+       */
+      private com.google.protobuf.SingleFieldBuilderV3<
+              com.google.rpc.Status, com.google.rpc.Status.Builder, com.google.rpc.StatusOrBuilder>
+          getStatusFieldBuilder() {
+        if (statusBuilder_ == null) {
+          statusBuilder_ =
+              new com.google.protobuf.SingleFieldBuilderV3<
+                  com.google.rpc.Status,
+                  com.google.rpc.Status.Builder,
+                  com.google.rpc.StatusOrBuilder>(getStatus(), getParentForChildren(), isClean());
+          status_ = null;
+        }
+        return statusBuilder_;
+      }
+
+      @java.lang.Override
+      public final Builder setUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.setUnknownFields(unknownFields);
+      }
+
+      @java.lang.Override
+      public final Builder mergeUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.mergeUnknownFields(unknownFields);
+      }
+
+      // @@protoc_insertion_point(builder_scope:google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata.IndividualBatchDeleteStatus)
+    }
+
+    // @@protoc_insertion_point(class_scope:google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata.IndividualBatchDeleteStatus)
+    private static final com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata
+            .IndividualBatchDeleteStatus
+        DEFAULT_INSTANCE;
+
+    static {
+      DEFAULT_INSTANCE =
+          new com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata
+              .IndividualBatchDeleteStatus();
+    }
+
+    public static com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata
+            .IndividualBatchDeleteStatus
+        getDefaultInstance() {
+      return DEFAULT_INSTANCE;
+    }
+
+    private static final com.google.protobuf.Parser PARSER =
+        new com.google.protobuf.AbstractParser() {
+          @java.lang.Override
+          public IndividualBatchDeleteStatus parsePartialFrom(
+              com.google.protobuf.CodedInputStream input,
+              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+              throws com.google.protobuf.InvalidProtocolBufferException {
+            Builder builder = newBuilder();
+            try {
+              builder.mergeFrom(input, extensionRegistry);
+            } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+              throw e.setUnfinishedMessage(builder.buildPartial());
+            } catch (com.google.protobuf.UninitializedMessageException e) {
+              throw e.asInvalidProtocolBufferException()
+                  .setUnfinishedMessage(builder.buildPartial());
+            } catch (java.io.IOException e) {
+              throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                  .setUnfinishedMessage(builder.buildPartial());
+            }
+            return builder.buildPartial();
+          }
+        };
+
+    public static com.google.protobuf.Parser parser() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Parser getParserForType() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata
+            .IndividualBatchDeleteStatus
+        getDefaultInstanceForType() {
+      return DEFAULT_INSTANCE;
+    }
+  }
+
+  public static final int COMMON_METADATA_FIELD_NUMBER = 1;
+  private com.google.cloud.documentai.v1beta3.CommonOperationMetadata commonMetadata_;
+  /**
+   *
+   *
+   * 
+   * The basic metadata of the long running operation.
+   * 

+   *
+   * .google.cloud.documentai.v1beta3.CommonOperationMetadata common_metadata = 1;
+   *
+   * @return Whether the commonMetadata field is set.
+   */
+  @java.lang.Override
+  public boolean hasCommonMetadata() {
+    return commonMetadata_ != null;
+  }
+  /**
+   *
+   *
+   * 
+   * The basic metadata of the long running operation.
+   * 

+   *
+   * .google.cloud.documentai.v1beta3.CommonOperationMetadata common_metadata = 1;
+   *
+   * @return The commonMetadata.
+   */
+  @java.lang.Override
+  public com.google.cloud.documentai.v1beta3.CommonOperationMetadata getCommonMetadata() {
+    return commonMetadata_ == null
+        ? com.google.cloud.documentai.v1beta3.CommonOperationMetadata.getDefaultInstance()
+        : commonMetadata_;
+  }
+  /**
+   *
+   *
+   * 
+   * The basic metadata of the long running operation.
+   * 

+   *
+   * .google.cloud.documentai.v1beta3.CommonOperationMetadata common_metadata = 1;
+   */
+  @java.lang.Override
+  public com.google.cloud.documentai.v1beta3.CommonOperationMetadataOrBuilder
+      getCommonMetadataOrBuilder() {
+    return commonMetadata_ == null
+        ? com.google.cloud.documentai.v1beta3.CommonOperationMetadata.getDefaultInstance()
+        : commonMetadata_;
+  }
+
+  public static final int INDIVIDUAL_BATCH_DELETE_STATUSES_FIELD_NUMBER = 2;
+
+  @SuppressWarnings("serial")
+  private java.util.List<
+          com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata
+              .IndividualBatchDeleteStatus>
+      individualBatchDeleteStatuses_;
+  /**
+   *
+   *
+   * 
+   * The list of response details of each document.
+   * 

+   *
+   * 
+   * repeated .google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata.IndividualBatchDeleteStatus individual_batch_delete_statuses = 2;
+   * 
+   */
+  @java.lang.Override
+  public java.util.List<
+          com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata
+              .IndividualBatchDeleteStatus>
+      getIndividualBatchDeleteStatusesList() {
+    return individualBatchDeleteStatuses_;
+  }
+  /**
+   *
+   *
+   * 
+   * The list of response details of each document.
+   * 

+   *
+   * 
+   * repeated .google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata.IndividualBatchDeleteStatus individual_batch_delete_statuses = 2;
+   * 
+   */
+  @java.lang.Override
+  public java.util.List<
+          ? extends
+              com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata
+                  .IndividualBatchDeleteStatusOrBuilder>
+      getIndividualBatchDeleteStatusesOrBuilderList() {
+    return individualBatchDeleteStatuses_;
+  }
+  /**
+   *
+   *
+   * 
+   * The list of response details of each document.
+   * 

+   *
+   * 
+   * repeated .google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata.IndividualBatchDeleteStatus individual_batch_delete_statuses = 2;
+   * 
+   */
+  @java.lang.Override
+  public int getIndividualBatchDeleteStatusesCount() {
+    return individualBatchDeleteStatuses_.size();
+  }
+  /**
+   *
+   *
+   * 
+   * The list of response details of each document.
+   * 

+   *
+   * 
+   * repeated .google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata.IndividualBatchDeleteStatus individual_batch_delete_statuses = 2;
+   * 
+   */
+  @java.lang.Override
+  public com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata
+          .IndividualBatchDeleteStatus
+      getIndividualBatchDeleteStatuses(int index) {
+    return individualBatchDeleteStatuses_.get(index);
+  }
+  /**
+   *
+   *
+   * 
+   * The list of response details of each document.
+   * 

+   *
+   * 
+   * repeated .google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata.IndividualBatchDeleteStatus individual_batch_delete_statuses = 2;
+   * 
+   */
+  @java.lang.Override
+  public com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata
+          .IndividualBatchDeleteStatusOrBuilder
+      getIndividualBatchDeleteStatusesOrBuilder(int index) {
+    return individualBatchDeleteStatuses_.get(index);
+  }
+
+  public static final int TOTAL_DOCUMENT_COUNT_FIELD_NUMBER = 3;
+  private int totalDocumentCount_ = 0;
+  /**
+   *
+   *
+   * 
+   * Total number of documents deleting from dataset.
+   * 

+   *
+   * int32 total_document_count = 3;
+   *
+   * @return The totalDocumentCount.
+   */
+  @java.lang.Override
+  public int getTotalDocumentCount() {
+    return totalDocumentCount_;
+  }
+
+  public static final int ERROR_DOCUMENT_COUNT_FIELD_NUMBER = 4;
+  private int errorDocumentCount_ = 0;
+  /**
+   *
+   *
+   * 
+   * Total number of documents that failed to be deleted in storage.
+   * 

+   *
+   * int32 error_document_count = 4;
+   *
+   * @return The errorDocumentCount.
+   */
+  @java.lang.Override
+  public int getErrorDocumentCount() {
+    return errorDocumentCount_;
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (commonMetadata_ != null) {
+      output.writeMessage(1, getCommonMetadata());
+    }
+    for (int i = 0; i < individualBatchDeleteStatuses_.size(); i++) {
+      output.writeMessage(2, individualBatchDeleteStatuses_.get(i));
+    }
+    if (totalDocumentCount_ != 0) {
+      output.writeInt32(3, totalDocumentCount_);
+    }
+    if (errorDocumentCount_ != 0) {
+      output.writeInt32(4, errorDocumentCount_);
+    }
+    getUnknownFields().writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (commonMetadata_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, getCommonMetadata());
+    }
+    for (int i = 0; i < individualBatchDeleteStatuses_.size(); i++) {
+      size +=
+          com.google.protobuf.CodedOutputStream.computeMessageSize(
+              2, individualBatchDeleteStatuses_.get(i));
+    }
+    if (totalDocumentCount_ != 0) {
+      size += com.google.protobuf.CodedOutputStream.computeInt32Size(3, totalDocumentCount_);
+    }
+    if (errorDocumentCount_ != 0) {
+      size += com.google.protobuf.CodedOutputStream.computeInt32Size(4, errorDocumentCount_);
+    }
+    size += getUnknownFields().getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata other =
+        (com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata) obj;
+
+    if (hasCommonMetadata() != other.hasCommonMetadata()) return false;
+    if (hasCommonMetadata()) {
+      if (!getCommonMetadata().equals(other.getCommonMetadata())) return false;
+    }
+    if (!getIndividualBatchDeleteStatusesList()
+        .equals(other.getIndividualBatchDeleteStatusesList())) return false;
+    if (getTotalDocumentCount() != other.getTotalDocumentCount()) return false;
+    if (getErrorDocumentCount() != other.getErrorDocumentCount()) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    if (hasCommonMetadata()) {
+      hash = (37 * hash) + COMMON_METADATA_FIELD_NUMBER;
+      hash = (53 * hash) + getCommonMetadata().hashCode();
+    }
+    if (getIndividualBatchDeleteStatusesCount() > 0) {
+      hash = (37 * hash) + INDIVIDUAL_BATCH_DELETE_STATUSES_FIELD_NUMBER;
+      hash = (53 * hash) + getIndividualBatchDeleteStatusesList().hashCode();
+    }
+    hash = (37 * hash) + TOTAL_DOCUMENT_COUNT_FIELD_NUMBER;
+    hash = (53 * hash) + getTotalDocumentCount();
+    hash = (37 * hash) + ERROR_DOCUMENT_COUNT_FIELD_NUMBER;
+    hash = (53 * hash) + getErrorDocumentCount();
+    hash = (29 * hash) + getUnknownFields().hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata parseFrom(
+      byte[] data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /** Protobuf type {@code google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata} */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata)
+      com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadataOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.documentai.v1beta3.DocumentAiDocumentService
+          .internal_static_google_cloud_documentai_v1beta3_BatchDeleteDocumentsMetadata_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.documentai.v1beta3.DocumentAiDocumentService
+          .internal_static_google_cloud_documentai_v1beta3_BatchDeleteDocumentsMetadata_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata.class,
+              com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata.Builder.class);
+    }
+
+    // Construct using com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata.newBuilder()
+    private Builder() {}
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      bitField0_ = 0;
+      commonMetadata_ = null;
+      if (commonMetadataBuilder_ != null) {
+        commonMetadataBuilder_.dispose();
+        commonMetadataBuilder_ = null;
+      }
+      if (individualBatchDeleteStatusesBuilder_ == null) {
+        individualBatchDeleteStatuses_ = java.util.Collections.emptyList();
+      } else {
+        individualBatchDeleteStatuses_ = null;
+        individualBatchDeleteStatusesBuilder_.clear();
+      }
+      bitField0_ = (bitField0_ & ~0x00000002);
+      totalDocumentCount_ = 0;
+      errorDocumentCount_ = 0;
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.documentai.v1beta3.DocumentAiDocumentService
+          .internal_static_google_cloud_documentai_v1beta3_BatchDeleteDocumentsMetadata_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata
+        getDefaultInstanceForType() {
+      return com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata build() {
+      com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata buildPartial() {
+      com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata result =
+          new com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata(this);
+      buildPartialRepeatedFields(result);
+      if (bitField0_ != 0) {
+        buildPartial0(result);
+      }
+      onBuilt();
+      return result;
+    }
+
+    private void buildPartialRepeatedFields(
+        com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata result) {
+      if (individualBatchDeleteStatusesBuilder_ == null) {
+        if (((bitField0_ & 0x00000002) != 0)) {
+          individualBatchDeleteStatuses_ =
+              java.util.Collections.unmodifiableList(individualBatchDeleteStatuses_);
+          bitField0_ = (bitField0_ & ~0x00000002);
+        }
+        result.individualBatchDeleteStatuses_ = individualBatchDeleteStatuses_;
+      } else {
+        result.individualBatchDeleteStatuses_ = individualBatchDeleteStatusesBuilder_.build();
+      }
+    }
+
+    private void buildPartial0(
+        com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata result) {
+      int from_bitField0_ = bitField0_;
+      if (((from_bitField0_ & 0x00000001) != 0)) {
+        result.commonMetadata_ =
+            commonMetadataBuilder_ == null ? commonMetadata_ : commonMetadataBuilder_.build();
+      }
+      if (((from_bitField0_ & 0x00000004) != 0)) {
+        result.totalDocumentCount_ = totalDocumentCount_;
+      }
+      if (((from_bitField0_ & 0x00000008) != 0)) {
+        result.errorDocumentCount_ = errorDocumentCount_;
+      }
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata) {
+        return mergeFrom((com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(
+        com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata other) {
+      if (other
+          == com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata.getDefaultInstance())
+        return this;
+      if (other.hasCommonMetadata()) {
+        mergeCommonMetadata(other.getCommonMetadata());
+      }
+      if (individualBatchDeleteStatusesBuilder_ == null) {
+        if (!other.individualBatchDeleteStatuses_.isEmpty()) {
+          if (individualBatchDeleteStatuses_.isEmpty()) {
+            individualBatchDeleteStatuses_ = other.individualBatchDeleteStatuses_;
+            bitField0_ = (bitField0_ & ~0x00000002);
+          } else {
+            ensureIndividualBatchDeleteStatusesIsMutable();
+            individualBatchDeleteStatuses_.addAll(other.individualBatchDeleteStatuses_);
+          }
+          onChanged();
+        }
+      } else {
+        if (!other.individualBatchDeleteStatuses_.isEmpty()) {
+          if (individualBatchDeleteStatusesBuilder_.isEmpty()) {
+            individualBatchDeleteStatusesBuilder_.dispose();
+            individualBatchDeleteStatusesBuilder_ = null;
+            individualBatchDeleteStatuses_ = other.individualBatchDeleteStatuses_;
+            bitField0_ = (bitField0_ & ~0x00000002);
+            individualBatchDeleteStatusesBuilder_ =
+                com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders
+                    ? getIndividualBatchDeleteStatusesFieldBuilder()
+                    : null;
+          } else {
+            individualBatchDeleteStatusesBuilder_.addAllMessages(
+                other.individualBatchDeleteStatuses_);
+          }
+        }
+      }
+      if (other.getTotalDocumentCount() != 0) {
+        setTotalDocumentCount(other.getTotalDocumentCount());
+      }
+      if (other.getErrorDocumentCount() != 0) {
+        setErrorDocumentCount(other.getErrorDocumentCount());
+      }
+      this.mergeUnknownFields(other.getUnknownFields());
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
+      try {
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                input.readMessage(getCommonMetadataFieldBuilder().getBuilder(), extensionRegistry);
+                bitField0_ |= 0x00000001;
+                break;
+              } // case 10
+            case 18:
+              {
+                com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata
+                        .IndividualBatchDeleteStatus
+                    m =
+                        input.readMessage(
+                            com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata
+                                .IndividualBatchDeleteStatus.parser(),
+                            extensionRegistry);
+                if (individualBatchDeleteStatusesBuilder_ == null) {
+                  ensureIndividualBatchDeleteStatusesIsMutable();
+                  individualBatchDeleteStatuses_.add(m);
+                } else {
+                  individualBatchDeleteStatusesBuilder_.addMessage(m);
+                }
+                break;
+              } // case 18
+            case 24:
+              {
+                totalDocumentCount_ = input.readInt32();
+                bitField0_ |= 0x00000004;
+                break;
+              } // case 24
+            case 32:
+              {
+                errorDocumentCount_ = input.readInt32();
+                bitField0_ |= 0x00000008;
+                break;
+              } // case 32
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        throw e.unwrapIOException();
+      } finally {
+        onChanged();
+      } // finally
+      return this;
+    }
+
+    private int bitField0_;
+
+    private com.google.cloud.documentai.v1beta3.CommonOperationMetadata commonMetadata_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.documentai.v1beta3.CommonOperationMetadata,
+            com.google.cloud.documentai.v1beta3.CommonOperationMetadata.Builder,
+            com.google.cloud.documentai.v1beta3.CommonOperationMetadataOrBuilder>
+        commonMetadataBuilder_;
+    /**
+     *
+     *
+     * 
+     * The basic metadata of the long running operation.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.CommonOperationMetadata common_metadata = 1;
+     *
+     * @return Whether the commonMetadata field is set.
+     */
+    public boolean hasCommonMetadata() {
+      return ((bitField0_ & 0x00000001) != 0);
+    }
+    /**
+     *
+     *
+     * 
+     * The basic metadata of the long running operation.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.CommonOperationMetadata common_metadata = 1;
+     *
+     * @return The commonMetadata.
+     */
+    public com.google.cloud.documentai.v1beta3.CommonOperationMetadata getCommonMetadata() {
+      if (commonMetadataBuilder_ == null) {
+        return commonMetadata_ == null
+            ? com.google.cloud.documentai.v1beta3.CommonOperationMetadata.getDefaultInstance()
+            : commonMetadata_;
+      } else {
+        return commonMetadataBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * The basic metadata of the long running operation.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.CommonOperationMetadata common_metadata = 1;
+     */
+    public Builder setCommonMetadata(
+        com.google.cloud.documentai.v1beta3.CommonOperationMetadata value) {
+      if (commonMetadataBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        commonMetadata_ = value;
+      } else {
+        commonMetadataBuilder_.setMessage(value);
+      }
+      bitField0_ |= 0x00000001;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * The basic metadata of the long running operation.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.CommonOperationMetadata common_metadata = 1;
+     */
+    public Builder setCommonMetadata(
+        com.google.cloud.documentai.v1beta3.CommonOperationMetadata.Builder builderForValue) {
+      if (commonMetadataBuilder_ == null) {
+        commonMetadata_ = builderForValue.build();
+      } else {
+        commonMetadataBuilder_.setMessage(builderForValue.build());
+      }
+      bitField0_ |= 0x00000001;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * The basic metadata of the long running operation.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.CommonOperationMetadata common_metadata = 1;
+     */
+    public Builder mergeCommonMetadata(
+        com.google.cloud.documentai.v1beta3.CommonOperationMetadata value) {
+      if (commonMetadataBuilder_ == null) {
+        if (((bitField0_ & 0x00000001) != 0)
+            && commonMetadata_ != null
+            && commonMetadata_
+                != com.google.cloud.documentai.v1beta3.CommonOperationMetadata
+                    .getDefaultInstance()) {
+          getCommonMetadataBuilder().mergeFrom(value);
+        } else {
+          commonMetadata_ = value;
+        }
+      } else {
+        commonMetadataBuilder_.mergeFrom(value);
+      }
+      bitField0_ |= 0x00000001;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * The basic metadata of the long running operation.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.CommonOperationMetadata common_metadata = 1;
+     */
+    public Builder clearCommonMetadata() {
+      bitField0_ = (bitField0_ & ~0x00000001);
+      commonMetadata_ = null;
+      if (commonMetadataBuilder_ != null) {
+        commonMetadataBuilder_.dispose();
+        commonMetadataBuilder_ = null;
+      }
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * The basic metadata of the long running operation.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.CommonOperationMetadata common_metadata = 1;
+     */
+    public com.google.cloud.documentai.v1beta3.CommonOperationMetadata.Builder
+        getCommonMetadataBuilder() {
+      bitField0_ |= 0x00000001;
+      onChanged();
+      return getCommonMetadataFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * 
+     * The basic metadata of the long running operation.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.CommonOperationMetadata common_metadata = 1;
+     */
+    public com.google.cloud.documentai.v1beta3.CommonOperationMetadataOrBuilder
+        getCommonMetadataOrBuilder() {
+      if (commonMetadataBuilder_ != null) {
+        return commonMetadataBuilder_.getMessageOrBuilder();
+      } else {
+        return commonMetadata_ == null
+            ? com.google.cloud.documentai.v1beta3.CommonOperationMetadata.getDefaultInstance()
+            : commonMetadata_;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * The basic metadata of the long running operation.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.CommonOperationMetadata common_metadata = 1;
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.documentai.v1beta3.CommonOperationMetadata,
+            com.google.cloud.documentai.v1beta3.CommonOperationMetadata.Builder,
+            com.google.cloud.documentai.v1beta3.CommonOperationMetadataOrBuilder>
+        getCommonMetadataFieldBuilder() {
+      if (commonMetadataBuilder_ == null) {
+        commonMetadataBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.documentai.v1beta3.CommonOperationMetadata,
+                com.google.cloud.documentai.v1beta3.CommonOperationMetadata.Builder,
+                com.google.cloud.documentai.v1beta3.CommonOperationMetadataOrBuilder>(
+                getCommonMetadata(), getParentForChildren(), isClean());
+        commonMetadata_ = null;
+      }
+      return commonMetadataBuilder_;
+    }
+
+    private java.util.List<
+            com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata
+                .IndividualBatchDeleteStatus>
+        individualBatchDeleteStatuses_ = java.util.Collections.emptyList();
+
+    private void ensureIndividualBatchDeleteStatusesIsMutable() {
+      if (!((bitField0_ & 0x00000002) != 0)) {
+        individualBatchDeleteStatuses_ =
+            new java.util.ArrayList<
+                com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata
+                    .IndividualBatchDeleteStatus>(individualBatchDeleteStatuses_);
+        bitField0_ |= 0x00000002;
+      }
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata
+                .IndividualBatchDeleteStatus,
+            com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata
+                .IndividualBatchDeleteStatus.Builder,
+            com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata
+                .IndividualBatchDeleteStatusOrBuilder>
+        individualBatchDeleteStatusesBuilder_;
+
+    /**
+     *
+     *
+     * 
+     * The list of response details of each document.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata.IndividualBatchDeleteStatus individual_batch_delete_statuses = 2;
+     * 
+     */
+    public java.util.List<
+            com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata
+                .IndividualBatchDeleteStatus>
+        getIndividualBatchDeleteStatusesList() {
+      if (individualBatchDeleteStatusesBuilder_ == null) {
+        return java.util.Collections.unmodifiableList(individualBatchDeleteStatuses_);
+      } else {
+        return individualBatchDeleteStatusesBuilder_.getMessageList();
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * The list of response details of each document.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata.IndividualBatchDeleteStatus individual_batch_delete_statuses = 2;
+     * 
+     */
+    public int getIndividualBatchDeleteStatusesCount() {
+      if (individualBatchDeleteStatusesBuilder_ == null) {
+        return individualBatchDeleteStatuses_.size();
+      } else {
+        return individualBatchDeleteStatusesBuilder_.getCount();
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * The list of response details of each document.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata.IndividualBatchDeleteStatus individual_batch_delete_statuses = 2;
+     * 
+     */
+    public com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata
+            .IndividualBatchDeleteStatus
+        getIndividualBatchDeleteStatuses(int index) {
+      if (individualBatchDeleteStatusesBuilder_ == null) {
+        return individualBatchDeleteStatuses_.get(index);
+      } else {
+        return individualBatchDeleteStatusesBuilder_.getMessage(index);
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * The list of response details of each document.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata.IndividualBatchDeleteStatus individual_batch_delete_statuses = 2;
+     * 
+     */
+    public Builder setIndividualBatchDeleteStatuses(
+        int index,
+        com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata.IndividualBatchDeleteStatus
+            value) {
+      if (individualBatchDeleteStatusesBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureIndividualBatchDeleteStatusesIsMutable();
+        individualBatchDeleteStatuses_.set(index, value);
+        onChanged();
+      } else {
+        individualBatchDeleteStatusesBuilder_.setMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * The list of response details of each document.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata.IndividualBatchDeleteStatus individual_batch_delete_statuses = 2;
+     * 
+     */
+    public Builder setIndividualBatchDeleteStatuses(
+        int index,
+        com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata.IndividualBatchDeleteStatus
+                .Builder
+            builderForValue) {
+      if (individualBatchDeleteStatusesBuilder_ == null) {
+        ensureIndividualBatchDeleteStatusesIsMutable();
+        individualBatchDeleteStatuses_.set(index, builderForValue.build());
+        onChanged();
+      } else {
+        individualBatchDeleteStatusesBuilder_.setMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * The list of response details of each document.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata.IndividualBatchDeleteStatus individual_batch_delete_statuses = 2;
+     * 
+     */
+    public Builder addIndividualBatchDeleteStatuses(
+        com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata.IndividualBatchDeleteStatus
+            value) {
+      if (individualBatchDeleteStatusesBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureIndividualBatchDeleteStatusesIsMutable();
+        individualBatchDeleteStatuses_.add(value);
+        onChanged();
+      } else {
+        individualBatchDeleteStatusesBuilder_.addMessage(value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * The list of response details of each document.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata.IndividualBatchDeleteStatus individual_batch_delete_statuses = 2;
+     * 
+     */
+    public Builder addIndividualBatchDeleteStatuses(
+        int index,
+        com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata.IndividualBatchDeleteStatus
+            value) {
+      if (individualBatchDeleteStatusesBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureIndividualBatchDeleteStatusesIsMutable();
+        individualBatchDeleteStatuses_.add(index, value);
+        onChanged();
+      } else {
+        individualBatchDeleteStatusesBuilder_.addMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * The list of response details of each document.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata.IndividualBatchDeleteStatus individual_batch_delete_statuses = 2;
+     * 
+     */
+    public Builder addIndividualBatchDeleteStatuses(
+        com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata.IndividualBatchDeleteStatus
+                .Builder
+            builderForValue) {
+      if (individualBatchDeleteStatusesBuilder_ == null) {
+        ensureIndividualBatchDeleteStatusesIsMutable();
+        individualBatchDeleteStatuses_.add(builderForValue.build());
+        onChanged();
+      } else {
+        individualBatchDeleteStatusesBuilder_.addMessage(builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * The list of response details of each document.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata.IndividualBatchDeleteStatus individual_batch_delete_statuses = 2;
+     * 
+     */
+    public Builder addIndividualBatchDeleteStatuses(
+        int index,
+        com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata.IndividualBatchDeleteStatus
+                .Builder
+            builderForValue) {
+      if (individualBatchDeleteStatusesBuilder_ == null) {
+        ensureIndividualBatchDeleteStatusesIsMutable();
+        individualBatchDeleteStatuses_.add(index, builderForValue.build());
+        onChanged();
+      } else {
+        individualBatchDeleteStatusesBuilder_.addMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * The list of response details of each document.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata.IndividualBatchDeleteStatus individual_batch_delete_statuses = 2;
+     * 
+     */
+    public Builder addAllIndividualBatchDeleteStatuses(
+        java.lang.Iterable<
+                ? extends
+                    com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata
+                        .IndividualBatchDeleteStatus>
+            values) {
+      if (individualBatchDeleteStatusesBuilder_ == null) {
+        ensureIndividualBatchDeleteStatusesIsMutable();
+        com.google.protobuf.AbstractMessageLite.Builder.addAll(
+            values, individualBatchDeleteStatuses_);
+        onChanged();
+      } else {
+        individualBatchDeleteStatusesBuilder_.addAllMessages(values);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * The list of response details of each document.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata.IndividualBatchDeleteStatus individual_batch_delete_statuses = 2;
+     * 
+     */
+    public Builder clearIndividualBatchDeleteStatuses() {
+      if (individualBatchDeleteStatusesBuilder_ == null) {
+        individualBatchDeleteStatuses_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000002);
+        onChanged();
+      } else {
+        individualBatchDeleteStatusesBuilder_.clear();
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * The list of response details of each document.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata.IndividualBatchDeleteStatus individual_batch_delete_statuses = 2;
+     * 
+     */
+    public Builder removeIndividualBatchDeleteStatuses(int index) {
+      if (individualBatchDeleteStatusesBuilder_ == null) {
+        ensureIndividualBatchDeleteStatusesIsMutable();
+        individualBatchDeleteStatuses_.remove(index);
+        onChanged();
+      } else {
+        individualBatchDeleteStatusesBuilder_.remove(index);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * The list of response details of each document.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata.IndividualBatchDeleteStatus individual_batch_delete_statuses = 2;
+     * 
+     */
+    public com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata
+            .IndividualBatchDeleteStatus.Builder
+        getIndividualBatchDeleteStatusesBuilder(int index) {
+      return getIndividualBatchDeleteStatusesFieldBuilder().getBuilder(index);
+    }
+    /**
+     *
+     *
+     * 
+     * The list of response details of each document.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata.IndividualBatchDeleteStatus individual_batch_delete_statuses = 2;
+     * 
+     */
+    public com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata
+            .IndividualBatchDeleteStatusOrBuilder
+        getIndividualBatchDeleteStatusesOrBuilder(int index) {
+      if (individualBatchDeleteStatusesBuilder_ == null) {
+        return individualBatchDeleteStatuses_.get(index);
+      } else {
+        return individualBatchDeleteStatusesBuilder_.getMessageOrBuilder(index);
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * The list of response details of each document.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata.IndividualBatchDeleteStatus individual_batch_delete_statuses = 2;
+     * 
+     */
+    public java.util.List<
+            ? extends
+                com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata
+                    .IndividualBatchDeleteStatusOrBuilder>
+        getIndividualBatchDeleteStatusesOrBuilderList() {
+      if (individualBatchDeleteStatusesBuilder_ != null) {
+        return individualBatchDeleteStatusesBuilder_.getMessageOrBuilderList();
+      } else {
+        return java.util.Collections.unmodifiableList(individualBatchDeleteStatuses_);
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * The list of response details of each document.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata.IndividualBatchDeleteStatus individual_batch_delete_statuses = 2;
+     * 
+     */
+    public com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata
+            .IndividualBatchDeleteStatus.Builder
+        addIndividualBatchDeleteStatusesBuilder() {
+      return getIndividualBatchDeleteStatusesFieldBuilder()
+          .addBuilder(
+              com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata
+                  .IndividualBatchDeleteStatus.getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * 
+     * The list of response details of each document.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata.IndividualBatchDeleteStatus individual_batch_delete_statuses = 2;
+     * 
+     */
+    public com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata
+            .IndividualBatchDeleteStatus.Builder
+        addIndividualBatchDeleteStatusesBuilder(int index) {
+      return getIndividualBatchDeleteStatusesFieldBuilder()
+          .addBuilder(
+              index,
+              com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata
+                  .IndividualBatchDeleteStatus.getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * 
+     * The list of response details of each document.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata.IndividualBatchDeleteStatus individual_batch_delete_statuses = 2;
+     * 
+     */
+    public java.util.List<
+            com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata
+                .IndividualBatchDeleteStatus.Builder>
+        getIndividualBatchDeleteStatusesBuilderList() {
+      return getIndividualBatchDeleteStatusesFieldBuilder().getBuilderList();
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata
+                .IndividualBatchDeleteStatus,
+            com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata
+                .IndividualBatchDeleteStatus.Builder,
+            com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata
+                .IndividualBatchDeleteStatusOrBuilder>
+        getIndividualBatchDeleteStatusesFieldBuilder() {
+      if (individualBatchDeleteStatusesBuilder_ == null) {
+        individualBatchDeleteStatusesBuilder_ =
+            new com.google.protobuf.RepeatedFieldBuilderV3<
+                com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata
+                    .IndividualBatchDeleteStatus,
+                com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata
+                    .IndividualBatchDeleteStatus.Builder,
+                com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata
+                    .IndividualBatchDeleteStatusOrBuilder>(
+                individualBatchDeleteStatuses_,
+                ((bitField0_ & 0x00000002) != 0),
+                getParentForChildren(),
+                isClean());
+        individualBatchDeleteStatuses_ = null;
+      }
+      return individualBatchDeleteStatusesBuilder_;
+    }
+
+    private int totalDocumentCount_;
+    /**
+     *
+     *
+     * 
+     * Total number of documents deleting from dataset.
+     * 

+     *
+     * int32 total_document_count = 3;
+     *
+     * @return The totalDocumentCount.
+     */
+    @java.lang.Override
+    public int getTotalDocumentCount() {
+      return totalDocumentCount_;
+    }
+    /**
+     *
+     *
+     * 
+     * Total number of documents deleting from dataset.
+     * 

+     *
+     * int32 total_document_count = 3;
+     *
+     * @param value The totalDocumentCount to set.
+     * @return This builder for chaining.
+     */
+    public Builder setTotalDocumentCount(int value) {
+
+      totalDocumentCount_ = value;
+      bitField0_ |= 0x00000004;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Total number of documents deleting from dataset.
+     * 

+     *
+     * int32 total_document_count = 3;
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearTotalDocumentCount() {
+      bitField0_ = (bitField0_ & ~0x00000004);
+      totalDocumentCount_ = 0;
+      onChanged();
+      return this;
+    }
+
+    private int errorDocumentCount_;
+    /**
+     *
+     *
+     * 
+     * Total number of documents that failed to be deleted in storage.
+     * 

+     *
+     * int32 error_document_count = 4;
+     *
+     * @return The errorDocumentCount.
+     */
+    @java.lang.Override
+    public int getErrorDocumentCount() {
+      return errorDocumentCount_;
+    }
+    /**
+     *
+     *
+     * 
+     * Total number of documents that failed to be deleted in storage.
+     * 

+     *
+     * int32 error_document_count = 4;
+     *
+     * @param value The errorDocumentCount to set.
+     * @return This builder for chaining.
+     */
+    public Builder setErrorDocumentCount(int value) {
+
+      errorDocumentCount_ = value;
+      bitField0_ |= 0x00000008;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Total number of documents that failed to be deleted in storage.
+     * 

+     *
+     * int32 error_document_count = 4;
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearErrorDocumentCount() {
+      bitField0_ = (bitField0_ & ~0x00000008);
+      errorDocumentCount_ = 0;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata)
+  private static final com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata
+      DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata();
+  }
+
+  public static com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata
+      getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser PARSER =
+      new com.google.protobuf.AbstractParser() {
+        @java.lang.Override
+        public BatchDeleteDocumentsMetadata parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
+        }
+      };
+
+  public static com.google.protobuf.Parser parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata
+      getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/BatchDeleteDocumentsMetadataOrBuilder.java b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/BatchDeleteDocumentsMetadataOrBuilder.java
new file mode 100644
index 000000000000..75903e2092d0
--- /dev/null
+++ b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/BatchDeleteDocumentsMetadataOrBuilder.java
@@ -0,0 +1,157 @@
+/*
+ * Copyright 2023 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/documentai/v1beta3/document_service.proto
+
+package com.google.cloud.documentai.v1beta3;
+
+public interface BatchDeleteDocumentsMetadataOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * 
+   * The basic metadata of the long running operation.
+   * 

+   *
+   * .google.cloud.documentai.v1beta3.CommonOperationMetadata common_metadata = 1;
+   *
+   * @return Whether the commonMetadata field is set.
+   */
+  boolean hasCommonMetadata();
+  /**
+   *
+   *
+   * 
+   * The basic metadata of the long running operation.
+   * 

+   *
+   * .google.cloud.documentai.v1beta3.CommonOperationMetadata common_metadata = 1;
+   *
+   * @return The commonMetadata.
+   */
+  com.google.cloud.documentai.v1beta3.CommonOperationMetadata getCommonMetadata();
+  /**
+   *
+   *
+   * 
+   * The basic metadata of the long running operation.
+   * 

+   *
+   * .google.cloud.documentai.v1beta3.CommonOperationMetadata common_metadata = 1;
+   */
+  com.google.cloud.documentai.v1beta3.CommonOperationMetadataOrBuilder getCommonMetadataOrBuilder();
+
+  /**
+   *
+   *
+   * 
+   * The list of response details of each document.
+   * 

+   *
+   * 
+   * repeated .google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata.IndividualBatchDeleteStatus individual_batch_delete_statuses = 2;
+   * 
+   */
+  java.util.List<
+          com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata
+              .IndividualBatchDeleteStatus>
+      getIndividualBatchDeleteStatusesList();
+  /**
+   *
+   *
+   * 
+   * The list of response details of each document.
+   * 

+   *
+   * 
+   * repeated .google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata.IndividualBatchDeleteStatus individual_batch_delete_statuses = 2;
+   * 
+   */
+  com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata.IndividualBatchDeleteStatus
+      getIndividualBatchDeleteStatuses(int index);
+  /**
+   *
+   *
+   * 
+   * The list of response details of each document.
+   * 

+   *
+   * 
+   * repeated .google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata.IndividualBatchDeleteStatus individual_batch_delete_statuses = 2;
+   * 
+   */
+  int getIndividualBatchDeleteStatusesCount();
+  /**
+   *
+   *
+   * 
+   * The list of response details of each document.
+   * 

+   *
+   * 
+   * repeated .google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata.IndividualBatchDeleteStatus individual_batch_delete_statuses = 2;
+   * 
+   */
+  java.util.List<
+          ? extends
+              com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata
+                  .IndividualBatchDeleteStatusOrBuilder>
+      getIndividualBatchDeleteStatusesOrBuilderList();
+  /**
+   *
+   *
+   * 
+   * The list of response details of each document.
+   * 

+   *
+   * 
+   * repeated .google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata.IndividualBatchDeleteStatus individual_batch_delete_statuses = 2;
+   * 
+   */
+  com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata
+          .IndividualBatchDeleteStatusOrBuilder
+      getIndividualBatchDeleteStatusesOrBuilder(int index);
+
+  /**
+   *
+   *
+   * 
+   * Total number of documents deleting from dataset.
+   * 

+   *
+   * int32 total_document_count = 3;
+   *
+   * @return The totalDocumentCount.
+   */
+  int getTotalDocumentCount();
+
+  /**
+   *
+   *
+   * 
+   * Total number of documents that failed to be deleted in storage.
+   * 

+   *
+   * int32 error_document_count = 4;
+   *
+   * @return The errorDocumentCount.
+   */
+  int getErrorDocumentCount();
+}
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/BatchDeleteDocumentsRequest.java b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/BatchDeleteDocumentsRequest.java
new file mode 100644
index 000000000000..80c1c0485a7c
--- /dev/null
+++ b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/BatchDeleteDocumentsRequest.java
@@ -0,0 +1,963 @@
+/*
+ * Copyright 2023 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/documentai/v1beta3/document_service.proto
+
+package com.google.cloud.documentai.v1beta3;
+
+/** Protobuf type {@code google.cloud.documentai.v1beta3.BatchDeleteDocumentsRequest} */
+public final class BatchDeleteDocumentsRequest extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.documentai.v1beta3.BatchDeleteDocumentsRequest)
+    BatchDeleteDocumentsRequestOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use BatchDeleteDocumentsRequest.newBuilder() to construct.
+  private BatchDeleteDocumentsRequest(com.google.protobuf.GeneratedMessageV3.Builder builder) {
+    super(builder);
+  }
+
+  private BatchDeleteDocumentsRequest() {
+    dataset_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new BatchDeleteDocumentsRequest();
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.documentai.v1beta3.DocumentAiDocumentService
+        .internal_static_google_cloud_documentai_v1beta3_BatchDeleteDocumentsRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.documentai.v1beta3.DocumentAiDocumentService
+        .internal_static_google_cloud_documentai_v1beta3_BatchDeleteDocumentsRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsRequest.class,
+            com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsRequest.Builder.class);
+  }
+
+  public static final int DATASET_FIELD_NUMBER = 1;
+
+  @SuppressWarnings("serial")
+  private volatile java.lang.Object dataset_ = "";
+  /**
+   *
+   *
+   * 
+   * Required. The dataset resource name.
+   * Format:
+   * projects/{project}/locations/{location}/processors/{processor}/dataset
+   * 

+   *
+   * string dataset = 1 [(.google.api.field_behavior) = REQUIRED];
+   *
+   * @return The dataset.
+   */
+  @java.lang.Override
+  public java.lang.String getDataset() {
+    java.lang.Object ref = dataset_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      dataset_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * 
+   * Required. The dataset resource name.
+   * Format:
+   * projects/{project}/locations/{location}/processors/{processor}/dataset
+   * 

+   *
+   * string dataset = 1 [(.google.api.field_behavior) = REQUIRED];
+   *
+   * @return The bytes for dataset.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getDatasetBytes() {
+    java.lang.Object ref = dataset_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      dataset_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int DATASET_DOCUMENTS_FIELD_NUMBER = 3;
+  private com.google.cloud.documentai.v1beta3.BatchDatasetDocuments datasetDocuments_;
+  /**
+   *
+   *
+   * 
+   * Required. Dataset documents input. If given `filter`, all documents
+   * satisfying the filter will be deleted. If given documentIds, a maximum of
+   * 50 documents can be deleted in a batch. The request will be rejected if
+   * more than 50 document_ids are provided.
+   * 

+   *
+   * 
+   * .google.cloud.documentai.v1beta3.BatchDatasetDocuments dataset_documents = 3 [(.google.api.field_behavior) = REQUIRED];
+   * 
+   *
+   * @return Whether the datasetDocuments field is set.
+   */
+  @java.lang.Override
+  public boolean hasDatasetDocuments() {
+    return datasetDocuments_ != null;
+  }
+  /**
+   *
+   *
+   * 
+   * Required. Dataset documents input. If given `filter`, all documents
+   * satisfying the filter will be deleted. If given documentIds, a maximum of
+   * 50 documents can be deleted in a batch. The request will be rejected if
+   * more than 50 document_ids are provided.
+   * 

+   *
+   * 
+   * .google.cloud.documentai.v1beta3.BatchDatasetDocuments dataset_documents = 3 [(.google.api.field_behavior) = REQUIRED];
+   * 
+   *
+   * @return The datasetDocuments.
+   */
+  @java.lang.Override
+  public com.google.cloud.documentai.v1beta3.BatchDatasetDocuments getDatasetDocuments() {
+    return datasetDocuments_ == null
+        ? com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.getDefaultInstance()
+        : datasetDocuments_;
+  }
+  /**
+   *
+   *
+   * 
+   * Required. Dataset documents input. If given `filter`, all documents
+   * satisfying the filter will be deleted. If given documentIds, a maximum of
+   * 50 documents can be deleted in a batch. The request will be rejected if
+   * more than 50 document_ids are provided.
+   * 

+   *
+   * 
+   * .google.cloud.documentai.v1beta3.BatchDatasetDocuments dataset_documents = 3 [(.google.api.field_behavior) = REQUIRED];
+   * 
+   */
+  @java.lang.Override
+  public com.google.cloud.documentai.v1beta3.BatchDatasetDocumentsOrBuilder
+      getDatasetDocumentsOrBuilder() {
+    return datasetDocuments_ == null
+        ? com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.getDefaultInstance()
+        : datasetDocuments_;
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(dataset_)) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, dataset_);
+    }
+    if (datasetDocuments_ != null) {
+      output.writeMessage(3, getDatasetDocuments());
+    }
+    getUnknownFields().writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(dataset_)) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, dataset_);
+    }
+    if (datasetDocuments_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(3, getDatasetDocuments());
+    }
+    size += getUnknownFields().getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsRequest)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsRequest other =
+        (com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsRequest) obj;
+
+    if (!getDataset().equals(other.getDataset())) return false;
+    if (hasDatasetDocuments() != other.hasDatasetDocuments()) return false;
+    if (hasDatasetDocuments()) {
+      if (!getDatasetDocuments().equals(other.getDatasetDocuments())) return false;
+    }
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + DATASET_FIELD_NUMBER;
+    hash = (53 * hash) + getDataset().hashCode();
+    if (hasDatasetDocuments()) {
+      hash = (37 * hash) + DATASET_DOCUMENTS_FIELD_NUMBER;
+      hash = (53 * hash) + getDatasetDocuments().hashCode();
+    }
+    hash = (29 * hash) + getUnknownFields().hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsRequest parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsRequest parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsRequest parseFrom(
+      byte[] data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsRequest parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsRequest parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsRequest parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsRequest parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsRequest parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsRequest parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /** Protobuf type {@code google.cloud.documentai.v1beta3.BatchDeleteDocumentsRequest} */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.documentai.v1beta3.BatchDeleteDocumentsRequest)
+      com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.documentai.v1beta3.DocumentAiDocumentService
+          .internal_static_google_cloud_documentai_v1beta3_BatchDeleteDocumentsRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.documentai.v1beta3.DocumentAiDocumentService
+          .internal_static_google_cloud_documentai_v1beta3_BatchDeleteDocumentsRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsRequest.class,
+              com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsRequest.Builder.class);
+    }
+
+    // Construct using com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsRequest.newBuilder()
+    private Builder() {}
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      bitField0_ = 0;
+      dataset_ = "";
+      datasetDocuments_ = null;
+      if (datasetDocumentsBuilder_ != null) {
+        datasetDocumentsBuilder_.dispose();
+        datasetDocumentsBuilder_ = null;
+      }
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.documentai.v1beta3.DocumentAiDocumentService
+          .internal_static_google_cloud_documentai_v1beta3_BatchDeleteDocumentsRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsRequest
+        getDefaultInstanceForType() {
+      return com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsRequest.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsRequest build() {
+      com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsRequest buildPartial() {
+      com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsRequest result =
+          new com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsRequest(this);
+      if (bitField0_ != 0) {
+        buildPartial0(result);
+      }
+      onBuilt();
+      return result;
+    }
+
+    private void buildPartial0(
+        com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsRequest result) {
+      int from_bitField0_ = bitField0_;
+      if (((from_bitField0_ & 0x00000001) != 0)) {
+        result.dataset_ = dataset_;
+      }
+      if (((from_bitField0_ & 0x00000002) != 0)) {
+        result.datasetDocuments_ =
+            datasetDocumentsBuilder_ == null ? datasetDocuments_ : datasetDocumentsBuilder_.build();
+      }
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsRequest) {
+        return mergeFrom((com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsRequest) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(
+        com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsRequest other) {
+      if (other
+          == com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsRequest.getDefaultInstance())
+        return this;
+      if (!other.getDataset().isEmpty()) {
+        dataset_ = other.dataset_;
+        bitField0_ |= 0x00000001;
+        onChanged();
+      }
+      if (other.hasDatasetDocuments()) {
+        mergeDatasetDocuments(other.getDatasetDocuments());
+      }
+      this.mergeUnknownFields(other.getUnknownFields());
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
+      try {
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                dataset_ = input.readStringRequireUtf8();
+                bitField0_ |= 0x00000001;
+                break;
+              } // case 10
+            case 26:
+              {
+                input.readMessage(
+                    getDatasetDocumentsFieldBuilder().getBuilder(), extensionRegistry);
+                bitField0_ |= 0x00000002;
+                break;
+              } // case 26
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        throw e.unwrapIOException();
+      } finally {
+        onChanged();
+      } // finally
+      return this;
+    }
+
+    private int bitField0_;
+
+    private java.lang.Object dataset_ = "";
+    /**
+     *
+     *
+     * 
+     * Required. The dataset resource name.
+     * Format:
+     * projects/{project}/locations/{location}/processors/{processor}/dataset
+     * 

+     *
+     * string dataset = 1 [(.google.api.field_behavior) = REQUIRED];
+     *
+     * @return The dataset.
+     */
+    public java.lang.String getDataset() {
+      java.lang.Object ref = dataset_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        dataset_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The dataset resource name.
+     * Format:
+     * projects/{project}/locations/{location}/processors/{processor}/dataset
+     * 

+     *
+     * string dataset = 1 [(.google.api.field_behavior) = REQUIRED];
+     *
+     * @return The bytes for dataset.
+     */
+    public com.google.protobuf.ByteString getDatasetBytes() {
+      java.lang.Object ref = dataset_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        dataset_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The dataset resource name.
+     * Format:
+     * projects/{project}/locations/{location}/processors/{processor}/dataset
+     * 

+     *
+     * string dataset = 1 [(.google.api.field_behavior) = REQUIRED];
+     *
+     * @param value The dataset to set.
+     * @return This builder for chaining.
+     */
+    public Builder setDataset(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      dataset_ = value;
+      bitField0_ |= 0x00000001;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The dataset resource name.
+     * Format:
+     * projects/{project}/locations/{location}/processors/{processor}/dataset
+     * 

+     *
+     * string dataset = 1 [(.google.api.field_behavior) = REQUIRED];
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearDataset() {
+      dataset_ = getDefaultInstance().getDataset();
+      bitField0_ = (bitField0_ & ~0x00000001);
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The dataset resource name.
+     * Format:
+     * projects/{project}/locations/{location}/processors/{processor}/dataset
+     * 

+     *
+     * string dataset = 1 [(.google.api.field_behavior) = REQUIRED];
+     *
+     * @param value The bytes for dataset to set.
+     * @return This builder for chaining.
+     */
+    public Builder setDatasetBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+      dataset_ = value;
+      bitField0_ |= 0x00000001;
+      onChanged();
+      return this;
+    }
+
+    private com.google.cloud.documentai.v1beta3.BatchDatasetDocuments datasetDocuments_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.documentai.v1beta3.BatchDatasetDocuments,
+            com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.Builder,
+            com.google.cloud.documentai.v1beta3.BatchDatasetDocumentsOrBuilder>
+        datasetDocumentsBuilder_;
+    /**
+     *
+     *
+     * 
+     * Required. Dataset documents input. If given `filter`, all documents
+     * satisfying the filter will be deleted. If given documentIds, a maximum of
+     * 50 documents can be deleted in a batch. The request will be rejected if
+     * more than 50 document_ids are provided.
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1beta3.BatchDatasetDocuments dataset_documents = 3 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     *
+     * @return Whether the datasetDocuments field is set.
+     */
+    public boolean hasDatasetDocuments() {
+      return ((bitField0_ & 0x00000002) != 0);
+    }
+    /**
+     *
+     *
+     * 
+     * Required. Dataset documents input. If given `filter`, all documents
+     * satisfying the filter will be deleted. If given documentIds, a maximum of
+     * 50 documents can be deleted in a batch. The request will be rejected if
+     * more than 50 document_ids are provided.
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1beta3.BatchDatasetDocuments dataset_documents = 3 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     *
+     * @return The datasetDocuments.
+     */
+    public com.google.cloud.documentai.v1beta3.BatchDatasetDocuments getDatasetDocuments() {
+      if (datasetDocumentsBuilder_ == null) {
+        return datasetDocuments_ == null
+            ? com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.getDefaultInstance()
+            : datasetDocuments_;
+      } else {
+        return datasetDocumentsBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Required. Dataset documents input. If given `filter`, all documents
+     * satisfying the filter will be deleted. If given documentIds, a maximum of
+     * 50 documents can be deleted in a batch. The request will be rejected if
+     * more than 50 document_ids are provided.
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1beta3.BatchDatasetDocuments dataset_documents = 3 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    public Builder setDatasetDocuments(
+        com.google.cloud.documentai.v1beta3.BatchDatasetDocuments value) {
+      if (datasetDocumentsBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        datasetDocuments_ = value;
+      } else {
+        datasetDocumentsBuilder_.setMessage(value);
+      }
+      bitField0_ |= 0x00000002;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. Dataset documents input. If given `filter`, all documents
+     * satisfying the filter will be deleted. If given documentIds, a maximum of
+     * 50 documents can be deleted in a batch. The request will be rejected if
+     * more than 50 document_ids are provided.
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1beta3.BatchDatasetDocuments dataset_documents = 3 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    public Builder setDatasetDocuments(
+        com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.Builder builderForValue) {
+      if (datasetDocumentsBuilder_ == null) {
+        datasetDocuments_ = builderForValue.build();
+      } else {
+        datasetDocumentsBuilder_.setMessage(builderForValue.build());
+      }
+      bitField0_ |= 0x00000002;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. Dataset documents input. If given `filter`, all documents
+     * satisfying the filter will be deleted. If given documentIds, a maximum of
+     * 50 documents can be deleted in a batch. The request will be rejected if
+     * more than 50 document_ids are provided.
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1beta3.BatchDatasetDocuments dataset_documents = 3 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    public Builder mergeDatasetDocuments(
+        com.google.cloud.documentai.v1beta3.BatchDatasetDocuments value) {
+      if (datasetDocumentsBuilder_ == null) {
+        if (((bitField0_ & 0x00000002) != 0)
+            && datasetDocuments_ != null
+            && datasetDocuments_
+                != com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.getDefaultInstance()) {
+          getDatasetDocumentsBuilder().mergeFrom(value);
+        } else {
+          datasetDocuments_ = value;
+        }
+      } else {
+        datasetDocumentsBuilder_.mergeFrom(value);
+      }
+      bitField0_ |= 0x00000002;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. Dataset documents input. If given `filter`, all documents
+     * satisfying the filter will be deleted. If given documentIds, a maximum of
+     * 50 documents can be deleted in a batch. The request will be rejected if
+     * more than 50 document_ids are provided.
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1beta3.BatchDatasetDocuments dataset_documents = 3 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    public Builder clearDatasetDocuments() {
+      bitField0_ = (bitField0_ & ~0x00000002);
+      datasetDocuments_ = null;
+      if (datasetDocumentsBuilder_ != null) {
+        datasetDocumentsBuilder_.dispose();
+        datasetDocumentsBuilder_ = null;
+      }
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. Dataset documents input. If given `filter`, all documents
+     * satisfying the filter will be deleted. If given documentIds, a maximum of
+     * 50 documents can be deleted in a batch. The request will be rejected if
+     * more than 50 document_ids are provided.
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1beta3.BatchDatasetDocuments dataset_documents = 3 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    public com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.Builder
+        getDatasetDocumentsBuilder() {
+      bitField0_ |= 0x00000002;
+      onChanged();
+      return getDatasetDocumentsFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * 
+     * Required. Dataset documents input. If given `filter`, all documents
+     * satisfying the filter will be deleted. If given documentIds, a maximum of
+     * 50 documents can be deleted in a batch. The request will be rejected if
+     * more than 50 document_ids are provided.
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1beta3.BatchDatasetDocuments dataset_documents = 3 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    public com.google.cloud.documentai.v1beta3.BatchDatasetDocumentsOrBuilder
+        getDatasetDocumentsOrBuilder() {
+      if (datasetDocumentsBuilder_ != null) {
+        return datasetDocumentsBuilder_.getMessageOrBuilder();
+      } else {
+        return datasetDocuments_ == null
+            ? com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.getDefaultInstance()
+            : datasetDocuments_;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Required. Dataset documents input. If given `filter`, all documents
+     * satisfying the filter will be deleted. If given documentIds, a maximum of
+     * 50 documents can be deleted in a batch. The request will be rejected if
+     * more than 50 document_ids are provided.
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1beta3.BatchDatasetDocuments dataset_documents = 3 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.documentai.v1beta3.BatchDatasetDocuments,
+            com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.Builder,
+            com.google.cloud.documentai.v1beta3.BatchDatasetDocumentsOrBuilder>
+        getDatasetDocumentsFieldBuilder() {
+      if (datasetDocumentsBuilder_ == null) {
+        datasetDocumentsBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.documentai.v1beta3.BatchDatasetDocuments,
+                com.google.cloud.documentai.v1beta3.BatchDatasetDocuments.Builder,
+                com.google.cloud.documentai.v1beta3.BatchDatasetDocumentsOrBuilder>(
+                getDatasetDocuments(), getParentForChildren(), isClean());
+        datasetDocuments_ = null;
+      }
+      return datasetDocumentsBuilder_;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.documentai.v1beta3.BatchDeleteDocumentsRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.documentai.v1beta3.BatchDeleteDocumentsRequest)
+  private static final com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsRequest
+      DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsRequest();
+  }
+
+  public static com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsRequest
+      getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser PARSER =
+      new com.google.protobuf.AbstractParser() {
+        @java.lang.Override
+        public BatchDeleteDocumentsRequest parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
+        }
+      };
+
+  public static com.google.protobuf.Parser parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsRequest
+      getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/BatchDeleteDocumentsRequestOrBuilder.java b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/BatchDeleteDocumentsRequestOrBuilder.java
new file mode 100644
index 000000000000..6cf26bde8a61
--- /dev/null
+++ b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/BatchDeleteDocumentsRequestOrBuilder.java
@@ -0,0 +1,104 @@
+/*
+ * Copyright 2023 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/documentai/v1beta3/document_service.proto
+
+package com.google.cloud.documentai.v1beta3;
+
+public interface BatchDeleteDocumentsRequestOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.documentai.v1beta3.BatchDeleteDocumentsRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * 
+   * Required. The dataset resource name.
+   * Format:
+   * projects/{project}/locations/{location}/processors/{processor}/dataset
+   * 

+   *
+   * string dataset = 1 [(.google.api.field_behavior) = REQUIRED];
+   *
+   * @return The dataset.
+   */
+  java.lang.String getDataset();
+  /**
+   *
+   *
+   * 
+   * Required. The dataset resource name.
+   * Format:
+   * projects/{project}/locations/{location}/processors/{processor}/dataset
+   * 

+   *
+   * string dataset = 1 [(.google.api.field_behavior) = REQUIRED];
+   *
+   * @return The bytes for dataset.
+   */
+  com.google.protobuf.ByteString getDatasetBytes();
+
+  /**
+   *
+   *
+   * 
+   * Required. Dataset documents input. If given `filter`, all documents
+   * satisfying the filter will be deleted. If given documentIds, a maximum of
+   * 50 documents can be deleted in a batch. The request will be rejected if
+   * more than 50 document_ids are provided.
+   * 

+   *
+   * 
+   * .google.cloud.documentai.v1beta3.BatchDatasetDocuments dataset_documents = 3 [(.google.api.field_behavior) = REQUIRED];
+   * 
+   *
+   * @return Whether the datasetDocuments field is set.
+   */
+  boolean hasDatasetDocuments();
+  /**
+   *
+   *
+   * 
+   * Required. Dataset documents input. If given `filter`, all documents
+   * satisfying the filter will be deleted. If given documentIds, a maximum of
+   * 50 documents can be deleted in a batch. The request will be rejected if
+   * more than 50 document_ids are provided.
+   * 

+   *
+   * 
+   * .google.cloud.documentai.v1beta3.BatchDatasetDocuments dataset_documents = 3 [(.google.api.field_behavior) = REQUIRED];
+   * 
+   *
+   * @return The datasetDocuments.
+   */
+  com.google.cloud.documentai.v1beta3.BatchDatasetDocuments getDatasetDocuments();
+  /**
+   *
+   *
+   * 
+   * Required. Dataset documents input. If given `filter`, all documents
+   * satisfying the filter will be deleted. If given documentIds, a maximum of
+   * 50 documents can be deleted in a batch. The request will be rejected if
+   * more than 50 document_ids are provided.
+   * 

+   *
+   * 
+   * .google.cloud.documentai.v1beta3.BatchDatasetDocuments dataset_documents = 3 [(.google.api.field_behavior) = REQUIRED];
+   * 
+   */
+  com.google.cloud.documentai.v1beta3.BatchDatasetDocumentsOrBuilder getDatasetDocumentsOrBuilder();
+}
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/BatchDeleteDocumentsResponse.java b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/BatchDeleteDocumentsResponse.java
new file mode 100644
index 000000000000..ead4973cddfd
--- /dev/null
+++ b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/BatchDeleteDocumentsResponse.java
@@ -0,0 +1,438 @@
+/*
+ * Copyright 2023 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/documentai/v1beta3/document_service.proto
+
+package com.google.cloud.documentai.v1beta3;
+
+/**
+ *
+ *
+ * 
+ * Response of the delete documents operation.
+ * 

+ *
+ * Protobuf type {@code google.cloud.documentai.v1beta3.BatchDeleteDocumentsResponse}
+ */
+public final class BatchDeleteDocumentsResponse extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.documentai.v1beta3.BatchDeleteDocumentsResponse)
+    BatchDeleteDocumentsResponseOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use BatchDeleteDocumentsResponse.newBuilder() to construct.
+  private BatchDeleteDocumentsResponse(com.google.protobuf.GeneratedMessageV3.Builder builder) {
+    super(builder);
+  }
+
+  private BatchDeleteDocumentsResponse() {}
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new BatchDeleteDocumentsResponse();
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.documentai.v1beta3.DocumentAiDocumentService
+        .internal_static_google_cloud_documentai_v1beta3_BatchDeleteDocumentsResponse_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.documentai.v1beta3.DocumentAiDocumentService
+        .internal_static_google_cloud_documentai_v1beta3_BatchDeleteDocumentsResponse_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsResponse.class,
+            com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsResponse.Builder.class);
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    getUnknownFields().writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    size += getUnknownFields().getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsResponse)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsResponse other =
+        (com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsResponse) obj;
+
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsResponse parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsResponse parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsResponse parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsResponse parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsResponse parseFrom(
+      byte[] data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsResponse parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsResponse parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsResponse parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsResponse parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsResponse parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsResponse parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsResponse parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsResponse prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * 
+   * Response of the delete documents operation.
+   * 

+   *
+   * Protobuf type {@code google.cloud.documentai.v1beta3.BatchDeleteDocumentsResponse}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.documentai.v1beta3.BatchDeleteDocumentsResponse)
+      com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsResponseOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.documentai.v1beta3.DocumentAiDocumentService
+          .internal_static_google_cloud_documentai_v1beta3_BatchDeleteDocumentsResponse_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.documentai.v1beta3.DocumentAiDocumentService
+          .internal_static_google_cloud_documentai_v1beta3_BatchDeleteDocumentsResponse_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsResponse.class,
+              com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsResponse.Builder.class);
+    }
+
+    // Construct using com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsResponse.newBuilder()
+    private Builder() {}
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.documentai.v1beta3.DocumentAiDocumentService
+          .internal_static_google_cloud_documentai_v1beta3_BatchDeleteDocumentsResponse_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsResponse
+        getDefaultInstanceForType() {
+      return com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsResponse.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsResponse build() {
+      com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsResponse result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsResponse buildPartial() {
+      com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsResponse result =
+          new com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsResponse(this);
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsResponse) {
+        return mergeFrom((com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsResponse) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(
+        com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsResponse other) {
+      if (other
+          == com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsResponse.getDefaultInstance())
+        return this;
+      this.mergeUnknownFields(other.getUnknownFields());
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
+      try {
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        throw e.unwrapIOException();
+      } finally {
+        onChanged();
+      } // finally
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.documentai.v1beta3.BatchDeleteDocumentsResponse)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.documentai.v1beta3.BatchDeleteDocumentsResponse)
+  private static final com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsResponse
+      DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsResponse();
+  }
+
+  public static com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsResponse
+      getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser PARSER =
+      new com.google.protobuf.AbstractParser() {
+        @java.lang.Override
+        public BatchDeleteDocumentsResponse parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
+        }
+      };
+
+  public static com.google.protobuf.Parser parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsResponse
+      getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/BatchDeleteDocumentsResponseOrBuilder.java b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/BatchDeleteDocumentsResponseOrBuilder.java
new file mode 100644
index 000000000000..e2d7bb9a9e18
--- /dev/null
+++ b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/BatchDeleteDocumentsResponseOrBuilder.java
@@ -0,0 +1,24 @@
+/*
+ * Copyright 2023 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/documentai/v1beta3/document_service.proto
+
+package com.google.cloud.documentai.v1beta3;
+
+public interface BatchDeleteDocumentsResponseOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.documentai.v1beta3.BatchDeleteDocumentsResponse)
+    com.google.protobuf.MessageOrBuilder {}
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/BatchProcessMetadata.java b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/BatchProcessMetadata.java
index 8e42ebfcb9f8..c4a2b51c1e62 100644
--- a/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/BatchProcessMetadata.java
+++ b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/BatchProcessMetadata.java
@@ -426,7 +426,7 @@ public interface IndividualProcessStatusOrBuilder
      *
      * @deprecated
      *     google.cloud.documentai.v1beta3.BatchProcessMetadata.IndividualProcessStatus.human_review_operation
-     *     is deprecated. See google/cloud/documentai/v1beta3/document_processor_service.proto;l=547
+     *     is deprecated. See google/cloud/documentai/v1beta3/document_processor_service.proto;l=550
      * @return The humanReviewOperation.
      */
     @java.lang.Deprecated
@@ -447,7 +447,7 @@ public interface IndividualProcessStatusOrBuilder
      *
      * @deprecated
      *     google.cloud.documentai.v1beta3.BatchProcessMetadata.IndividualProcessStatus.human_review_operation
-     *     is deprecated. See google/cloud/documentai/v1beta3/document_processor_service.proto;l=547
+     *     is deprecated. See google/cloud/documentai/v1beta3/document_processor_service.proto;l=550
      * @return The bytes for humanReviewOperation.
      */
     @java.lang.Deprecated
@@ -713,7 +713,7 @@ public com.google.protobuf.ByteString getOutputGcsDestinationBytes() {
      *
      * @deprecated
      *     google.cloud.documentai.v1beta3.BatchProcessMetadata.IndividualProcessStatus.human_review_operation
-     *     is deprecated. See google/cloud/documentai/v1beta3/document_processor_service.proto;l=547
+     *     is deprecated. See google/cloud/documentai/v1beta3/document_processor_service.proto;l=550
      * @return The humanReviewOperation.
      */
     @java.lang.Override
@@ -745,7 +745,7 @@ public java.lang.String getHumanReviewOperation() {
      *
      * @deprecated
      *     google.cloud.documentai.v1beta3.BatchProcessMetadata.IndividualProcessStatus.human_review_operation
-     *     is deprecated. See google/cloud/documentai/v1beta3/document_processor_service.proto;l=547
+     *     is deprecated. See google/cloud/documentai/v1beta3/document_processor_service.proto;l=550
      * @return The bytes for humanReviewOperation.
      */
     @java.lang.Override
@@ -1724,7 +1724,7 @@ public Builder setOutputGcsDestinationBytes(com.google.protobuf.ByteString value
        * @deprecated
        *     google.cloud.documentai.v1beta3.BatchProcessMetadata.IndividualProcessStatus.human_review_operation
        *     is deprecated. See
-       *     google/cloud/documentai/v1beta3/document_processor_service.proto;l=547
+       *     google/cloud/documentai/v1beta3/document_processor_service.proto;l=550
        * @return The humanReviewOperation.
        */
       @java.lang.Deprecated
@@ -1756,7 +1756,7 @@ public java.lang.String getHumanReviewOperation() {
        * @deprecated
        *     google.cloud.documentai.v1beta3.BatchProcessMetadata.IndividualProcessStatus.human_review_operation
        *     is deprecated. See
-       *     google/cloud/documentai/v1beta3/document_processor_service.proto;l=547
+       *     google/cloud/documentai/v1beta3/document_processor_service.proto;l=550
        * @return The bytes for humanReviewOperation.
        */
       @java.lang.Deprecated
@@ -1788,7 +1788,7 @@ public com.google.protobuf.ByteString getHumanReviewOperationBytes() {
        * @deprecated
        *     google.cloud.documentai.v1beta3.BatchProcessMetadata.IndividualProcessStatus.human_review_operation
        *     is deprecated. See
-       *     google/cloud/documentai/v1beta3/document_processor_service.proto;l=547
+       *     google/cloud/documentai/v1beta3/document_processor_service.proto;l=550
        * @param value The humanReviewOperation to set.
        * @return This builder for chaining.
        */
@@ -1819,7 +1819,7 @@ public Builder setHumanReviewOperation(java.lang.String value) {
        * @deprecated
        *     google.cloud.documentai.v1beta3.BatchProcessMetadata.IndividualProcessStatus.human_review_operation
        *     is deprecated. See
-       *     google/cloud/documentai/v1beta3/document_processor_service.proto;l=547
+       *     google/cloud/documentai/v1beta3/document_processor_service.proto;l=550
        * @return This builder for chaining.
        */
       @java.lang.Deprecated
@@ -1846,7 +1846,7 @@ public Builder clearHumanReviewOperation() {
        * @deprecated
        *     google.cloud.documentai.v1beta3.BatchProcessMetadata.IndividualProcessStatus.human_review_operation
        *     is deprecated. See
-       *     google/cloud/documentai/v1beta3/document_processor_service.proto;l=547
+       *     google/cloud/documentai/v1beta3/document_processor_service.proto;l=550
        * @param value The bytes for humanReviewOperation to set.
        * @return This builder for chaining.
        */
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/BatchProcessRequest.java b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/BatchProcessRequest.java
index a7922a7d73f9..699b8594b963 100644
--- a/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/BatchProcessRequest.java
+++ b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/BatchProcessRequest.java
@@ -1834,7 +1834,7 @@ public com.google.cloud.documentai.v1beta3.BatchProcessRequest.BatchInputConfig
    * 
    *
    * @deprecated google.cloud.documentai.v1beta3.BatchProcessRequest.output_config is deprecated.
-   *     See google/cloud/documentai/v1beta3/document_processor_service.proto;l=499
+   *     See google/cloud/documentai/v1beta3/document_processor_service.proto;l=502
    * @return Whether the outputConfig field is set.
    */
   @java.lang.Override
@@ -1854,7 +1854,7 @@ public boolean hasOutputConfig() {
    * 
    *
    * @deprecated google.cloud.documentai.v1beta3.BatchProcessRequest.output_config is deprecated.
-   *     See google/cloud/documentai/v1beta3/document_processor_service.proto;l=499
+   *     See google/cloud/documentai/v1beta3/document_processor_service.proto;l=502
    * @return The outputConfig.
    */
   @java.lang.Override
@@ -3232,7 +3232,7 @@ public Builder removeInputConfigs(int index) {
      * 
      *
      * @deprecated google.cloud.documentai.v1beta3.BatchProcessRequest.output_config is deprecated.
-     *     See google/cloud/documentai/v1beta3/document_processor_service.proto;l=499
+     *     See google/cloud/documentai/v1beta3/document_processor_service.proto;l=502
      * @return Whether the outputConfig field is set.
      */
     @java.lang.Deprecated
@@ -3251,7 +3251,7 @@ public boolean hasOutputConfig() {
      * 
      *
      * @deprecated google.cloud.documentai.v1beta3.BatchProcessRequest.output_config is deprecated.
-     *     See google/cloud/documentai/v1beta3/document_processor_service.proto;l=499
+     *     See google/cloud/documentai/v1beta3/document_processor_service.proto;l=502
      * @return The outputConfig.
      */
     @java.lang.Deprecated
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/BatchProcessRequestOrBuilder.java b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/BatchProcessRequestOrBuilder.java
index e1798f7e6a62..075aed567403 100644
--- a/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/BatchProcessRequestOrBuilder.java
+++ b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/BatchProcessRequestOrBuilder.java
@@ -146,7 +146,7 @@ com.google.cloud.documentai.v1beta3.BatchProcessRequest.BatchInputConfig getInpu
    * 
    *
    * @deprecated google.cloud.documentai.v1beta3.BatchProcessRequest.output_config is deprecated.
-   *     See google/cloud/documentai/v1beta3/document_processor_service.proto;l=499
+   *     See google/cloud/documentai/v1beta3/document_processor_service.proto;l=502
    * @return Whether the outputConfig field is set.
    */
   @java.lang.Deprecated
@@ -163,7 +163,7 @@ com.google.cloud.documentai.v1beta3.BatchProcessRequest.BatchInputConfig getInpu
    * 
    *
    * @deprecated google.cloud.documentai.v1beta3.BatchProcessRequest.output_config is deprecated.
-   *     See google/cloud/documentai/v1beta3/document_processor_service.proto;l=499
+   *     See google/cloud/documentai/v1beta3/document_processor_service.proto;l=502
    * @return The outputConfig.
    */
   @java.lang.Deprecated
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/DatasetName.java b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/DatasetName.java
new file mode 100644
index 000000000000..997b07a5b645
--- /dev/null
+++ b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/DatasetName.java
@@ -0,0 +1,223 @@
+/*
+ * Copyright 2023 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.documentai.v1beta3;
+
+import com.google.api.pathtemplate.PathTemplate;
+import com.google.api.resourcenames.ResourceName;
+import com.google.common.base.Preconditions;
+import com.google.common.collect.ImmutableMap;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+import java.util.Objects;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS.
+@Generated("by gapic-generator-java")
+public class DatasetName implements ResourceName {
+  private static final PathTemplate PROJECT_LOCATION_PROCESSOR =
+      PathTemplate.createWithoutUrlEncoding(
+          "projects/{project}/locations/{location}/processors/{processor}/dataset");
+  private volatile Map fieldValuesMap;
+  private final String project;
+  private final String location;
+  private final String processor;
+
+  @Deprecated
+  protected DatasetName() {
+    project = null;
+    location = null;
+    processor = null;
+  }
+
+  private DatasetName(Builder builder) {
+    project = Preconditions.checkNotNull(builder.getProject());
+    location = Preconditions.checkNotNull(builder.getLocation());
+    processor = Preconditions.checkNotNull(builder.getProcessor());
+  }
+
+  public String getProject() {
+    return project;
+  }
+
+  public String getLocation() {
+    return location;
+  }
+
+  public String getProcessor() {
+    return processor;
+  }
+
+  public static Builder newBuilder() {
+    return new Builder();
+  }
+
+  public Builder toBuilder() {
+    return new Builder(this);
+  }
+
+  public static DatasetName of(String project, String location, String processor) {
+    return newBuilder().setProject(project).setLocation(location).setProcessor(processor).build();
+  }
+
+  public static String format(String project, String location, String processor) {
+    return newBuilder()
+        .setProject(project)
+        .setLocation(location)
+        .setProcessor(processor)
+        .build()
+        .toString();
+  }
+
+  public static DatasetName parse(String formattedString) {
+    if (formattedString.isEmpty()) {
+      return null;
+    }
+    Map matchMap =
+        PROJECT_LOCATION_PROCESSOR.validatedMatch(
+            formattedString, "DatasetName.parse: formattedString not in valid format");
+    return of(matchMap.get("project"), matchMap.get("location"), matchMap.get("processor"));
+  }
+
+  public static List parseList(List formattedStrings) {
+    List list = new ArrayList<>(formattedStrings.size());
+    for (String formattedString : formattedStrings) {
+      list.add(parse(formattedString));
+    }
+    return list;
+  }
+
+  public static List toStringList(List values) {
+    List list = new ArrayList<>(values.size());
+    for (DatasetName value : values) {
+      if (value == null) {
+        list.add("");
+      } else {
+        list.add(value.toString());
+      }
+    }
+    return list;
+  }
+
+  public static boolean isParsableFrom(String formattedString) {
+    return PROJECT_LOCATION_PROCESSOR.matches(formattedString);
+  }
+
+  @Override
+  public Map getFieldValuesMap() {
+    if (fieldValuesMap == null) {
+      synchronized (this) {
+        if (fieldValuesMap == null) {
+          ImmutableMap.Builder fieldMapBuilder = ImmutableMap.builder();
+          if (project != null) {
+            fieldMapBuilder.put("project", project);
+          }
+          if (location != null) {
+            fieldMapBuilder.put("location", location);
+          }
+          if (processor != null) {
+            fieldMapBuilder.put("processor", processor);
+          }
+          fieldValuesMap = fieldMapBuilder.build();
+        }
+      }
+    }
+    return fieldValuesMap;
+  }
+
+  public String getFieldValue(String fieldName) {
+    return getFieldValuesMap().get(fieldName);
+  }
+
+  @Override
+  public String toString() {
+    return PROJECT_LOCATION_PROCESSOR.instantiate(
+        "project", project, "location", location, "processor", processor);
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    if (o == this) {
+      return true;
+    }
+    if (o != null || getClass() == o.getClass()) {
+      DatasetName that = ((DatasetName) o);
+      return Objects.equals(this.project, that.project)
+          && Objects.equals(this.location, that.location)
+          && Objects.equals(this.processor, that.processor);
+    }
+    return false;
+  }
+
+  @Override
+  public int hashCode() {
+    int h = 1;
+    h *= 1000003;
+    h ^= Objects.hashCode(project);
+    h *= 1000003;
+    h ^= Objects.hashCode(location);
+    h *= 1000003;
+    h ^= Objects.hashCode(processor);
+    return h;
+  }
+
+  /** Builder for projects/{project}/locations/{location}/processors/{processor}/dataset. */
+  public static class Builder {
+    private String project;
+    private String location;
+    private String processor;
+
+    protected Builder() {}
+
+    public String getProject() {
+      return project;
+    }
+
+    public String getLocation() {
+      return location;
+    }
+
+    public String getProcessor() {
+      return processor;
+    }
+
+    public Builder setProject(String project) {
+      this.project = project;
+      return this;
+    }
+
+    public Builder setLocation(String location) {
+      this.location = location;
+      return this;
+    }
+
+    public Builder setProcessor(String processor) {
+      this.processor = processor;
+      return this;
+    }
+
+    private Builder(DatasetName datasetName) {
+      this.project = datasetName.project;
+      this.location = datasetName.location;
+      this.processor = datasetName.processor;
+    }
+
+    public DatasetName build() {
+      return new DatasetName(this);
+    }
+  }
+}
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/DatasetProto.java b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/DatasetProto.java
index bb57cd518418..327ab70cc8ef 100644
--- a/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/DatasetProto.java
+++ b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/DatasetProto.java
@@ -47,10 +47,30 @@ public static void registerAllExtensions(com.google.protobuf.ExtensionRegistry r
       internal_static_google_cloud_documentai_v1beta3_Dataset_SpannerIndexingConfig_descriptor;
   static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
       internal_static_google_cloud_documentai_v1beta3_Dataset_SpannerIndexingConfig_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_documentai_v1beta3_DocumentId_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_documentai_v1beta3_DocumentId_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_documentai_v1beta3_DocumentId_GCSManagedDocumentId_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_documentai_v1beta3_DocumentId_GCSManagedDocumentId_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_documentai_v1beta3_DocumentId_UnmanagedDocumentId_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_documentai_v1beta3_DocumentId_UnmanagedDocumentId_fieldAccessorTable;
   static final com.google.protobuf.Descriptors.Descriptor
       internal_static_google_cloud_documentai_v1beta3_DatasetSchema_descriptor;
   static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
       internal_static_google_cloud_documentai_v1beta3_DatasetSchema_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_documentai_v1beta3_BatchDatasetDocuments_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_documentai_v1beta3_BatchDatasetDocuments_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_documentai_v1beta3_BatchDatasetDocuments_IndividualDocumentIds_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_documentai_v1beta3_BatchDatasetDocuments_IndividualDocumentIds_fieldAccessorTable;
 
   public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
     return descriptor;
@@ -63,49 +83,67 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
       "\n-google/cloud/documentai/v1beta3/datase"
           + "t.proto\022\037google.cloud.documentai.v1beta3"
           + "\032\037google/api/field_behavior.proto\032\031googl"
-          + "e/api/resource.proto\0321google/cloud/docum"
-          + "entai/v1beta3/document_io.proto\0325google/"
-          + "cloud/documentai/v1beta3/document_schema"
-          + ".proto\"\352\007\n\007Dataset\022]\n\022gcs_managed_config"
-          + "\030\003 \001(\01329.google.cloud.documentai.v1beta3"
-          + ".Dataset.GCSManagedConfigB\004\342A\001\001H\000\022k\n\031doc"
-          + "ument_warehouse_config\030\005 \001(\0132@.google.cl"
-          + "oud.documentai.v1beta3.Dataset.DocumentW"
-          + "arehouseConfigB\004\342A\001\001H\000\022i\n\030unmanaged_data"
-          + "set_config\030\006 \001(\0132?.google.cloud.document"
-          + "ai.v1beta3.Dataset.UnmanagedDatasetConfi"
-          + "gB\004\342A\001\001H\000\022g\n\027spanner_indexing_config\030\004 \001"
-          + "(\0132>.google.cloud.documentai.v1beta3.Dat"
-          + "aset.SpannerIndexingConfigB\004\342A\001\001H\001\022\014\n\004na"
-          + "me\030\001 \001(\t\022C\n\005state\030\002 \001(\0162..google.cloud.d"
-          + "ocumentai.v1beta3.Dataset.StateB\004\342A\001\002\032X\n"
-          + "\020GCSManagedConfig\022D\n\ngcs_prefix\030\001 \001(\0132*."
-          + "google.cloud.documentai.v1beta3.GcsPrefi"
-          + "xB\004\342A\001\002\032t\n\027DocumentWarehouseConfig\022\030\n\nco"
-          + "llection\030\001 \001(\tB\004\342A\001\003\022?\n\006schema\030\002 \001(\tB/\342A"
-          + "\001\003\372A(\n&contentwarehouse.googleapis.com/S"
-          + "chema\032\030\n\026UnmanagedDatasetConfig\032\027\n\025Spann"
-          + "erIndexingConfig\"T\n\005State\022\025\n\021STATE_UNSPE"
-          + "CIFIED\020\000\022\021\n\rUNINITIALIZED\020\001\022\020\n\014INITIALIZ"
-          + "ING\020\002\022\017\n\013INITIALIZED\020\003:n\352Ak\n!documentai."
-          + "googleapis.com/Dataset\022Fprojects/{projec"
-          + "t}/locations/{location}/processors/{proc"
-          + "essor}/datasetB\020\n\016storage_sourceB\021\n\017inde"
-          + "xing_source\"\362\001\n\rDatasetSchema\022\014\n\004name\030\001 "
-          + "\001(\t\022N\n\017document_schema\030\003 \001(\0132/.google.cl"
-          + "oud.documentai.v1beta3.DocumentSchemaB\004\342"
-          + "A\001\001:\202\001\352A\177\n\'documentai.googleapis.com/Dat"
-          + "asetSchema\022Tprojects/{project}/locations"
-          + "/{location}/processors/{processor}/datas"
-          + "et/datasetSchemaB\310\002\n#com.google.cloud.do"
-          + "cumentai.v1beta3B\014DatasetProtoP\001ZCcloud."
-          + "google.com/go/documentai/apiv1beta3/docu"
-          + "mentaipb;documentaipb\252\002\037Google.Cloud.Doc"
-          + "umentAI.V1Beta3\312\002\037Google\\Cloud\\DocumentA"
-          + "I\\V1beta3\352\002\"Google::Cloud::DocumentAI::V"
-          + "1beta3\352Ab\n&contentwarehouse.googleapis.c"
-          + "om/Schema\0228projects/{project}/locations/"
-          + "{location}/schemas/{schema}b\006proto3"
+          + "e/api/resource.proto\032.google/cloud/docum"
+          + "entai/v1beta3/document.proto\0321google/clo"
+          + "ud/documentai/v1beta3/document_io.proto\032"
+          + "5google/cloud/documentai/v1beta3/documen"
+          + "t_schema.proto\"\352\007\n\007Dataset\022]\n\022gcs_manage"
+          + "d_config\030\003 \001(\01329.google.cloud.documentai"
+          + ".v1beta3.Dataset.GCSManagedConfigB\004\342A\001\001H"
+          + "\000\022k\n\031document_warehouse_config\030\005 \001(\0132@.g"
+          + "oogle.cloud.documentai.v1beta3.Dataset.D"
+          + "ocumentWarehouseConfigB\004\342A\001\001H\000\022i\n\030unmana"
+          + "ged_dataset_config\030\006 \001(\0132?.google.cloud."
+          + "documentai.v1beta3.Dataset.UnmanagedData"
+          + "setConfigB\004\342A\001\001H\000\022g\n\027spanner_indexing_co"
+          + "nfig\030\004 \001(\0132>.google.cloud.documentai.v1b"
+          + "eta3.Dataset.SpannerIndexingConfigB\004\342A\001\001"
+          + "H\001\022\014\n\004name\030\001 \001(\t\022C\n\005state\030\002 \001(\0162..google"
+          + ".cloud.documentai.v1beta3.Dataset.StateB"
+          + "\004\342A\001\002\032X\n\020GCSManagedConfig\022D\n\ngcs_prefix\030"
+          + "\001 \001(\0132*.google.cloud.documentai.v1beta3."
+          + "GcsPrefixB\004\342A\001\002\032t\n\027DocumentWarehouseConf"
+          + "ig\022\030\n\ncollection\030\001 \001(\tB\004\342A\001\003\022?\n\006schema\030\002"
+          + " \001(\tB/\342A\001\003\372A(\n&contentwarehouse.googleap"
+          + "is.com/Schema\032\030\n\026UnmanagedDatasetConfig\032"
+          + "\027\n\025SpannerIndexingConfig\"T\n\005State\022\025\n\021STA"
+          + "TE_UNSPECIFIED\020\000\022\021\n\rUNINITIALIZED\020\001\022\020\n\014I"
+          + "NITIALIZING\020\002\022\017\n\013INITIALIZED\020\003:n\352Ak\n!doc"
+          + "umentai.googleapis.com/Dataset\022Fprojects"
+          + "/{project}/locations/{location}/processo"
+          + "rs/{processor}/datasetB\020\n\016storage_source"
+          + "B\021\n\017indexing_source\"\210\003\n\nDocumentId\022^\n\022gc"
+          + "s_managed_doc_id\030\001 \001(\0132@.google.cloud.do"
+          + "cumentai.v1beta3.DocumentId.GCSManagedDo"
+          + "cumentIdH\000\022[\n\020unmanaged_doc_id\030\004 \001(\0132?.g"
+          + "oogle.cloud.documentai.v1beta3.DocumentI"
+          + "d.UnmanagedDocumentIdH\000\022B\n\014revision_ref\030"
+          + "\003 \001(\0132,.google.cloud.documentai.v1beta3."
+          + "RevisionRef\032D\n\024GCSManagedDocumentId\022\025\n\007g"
+          + "cs_uri\030\001 \001(\tB\004\342A\001\002\022\025\n\tcw_doc_id\030\002 \001(\tB\002\030"
+          + "\001\032+\n\023UnmanagedDocumentId\022\024\n\006doc_id\030\001 \001(\t"
+          + "B\004\342A\001\002B\006\n\004type\"\362\001\n\rDatasetSchema\022\014\n\004name"
+          + "\030\001 \001(\t\022N\n\017document_schema\030\003 \001(\0132/.google"
+          + ".cloud.documentai.v1beta3.DocumentSchema"
+          + "B\004\342A\001\001:\202\001\352A\177\n\'documentai.googleapis.com/"
+          + "DatasetSchema\022Tprojects/{project}/locati"
+          + "ons/{location}/processors/{processor}/da"
+          + "taset/datasetSchema\"\210\002\n\025BatchDatasetDocu"
+          + "ments\022o\n\027individual_document_ids\030\001 \001(\0132L"
+          + ".google.cloud.documentai.v1beta3.BatchDa"
+          + "tasetDocuments.IndividualDocumentIdsH\000\022\020"
+          + "\n\006filter\030\002 \001(\tH\000\032`\n\025IndividualDocumentId"
+          + "s\022G\n\014document_ids\030\001 \003(\0132+.google.cloud.d"
+          + "ocumentai.v1beta3.DocumentIdB\004\342A\001\002B\n\n\010cr"
+          + "iteriaB\310\002\n#com.google.cloud.documentai.v"
+          + "1beta3B\014DatasetProtoP\001ZCcloud.google.com"
+          + "/go/documentai/apiv1beta3/documentaipb;d"
+          + "ocumentaipb\252\002\037Google.Cloud.DocumentAI.V1"
+          + "Beta3\312\002\037Google\\Cloud\\DocumentAI\\V1beta3\352"
+          + "\002\"Google::Cloud::DocumentAI::V1beta3\352Ab\n"
+          + "&contentwarehouse.googleapis.com/Schema\022"
+          + "8projects/{project}/locations/{location}"
+          + "/schemas/{schema}b\006proto3"
     };
     descriptor =
         com.google.protobuf.Descriptors.FileDescriptor.internalBuildGeneratedFileFrom(
@@ -113,6 +151,7 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
             new com.google.protobuf.Descriptors.FileDescriptor[] {
               com.google.api.FieldBehaviorProto.getDescriptor(),
               com.google.api.ResourceProto.getDescriptor(),
+              com.google.cloud.documentai.v1beta3.DocumentProto.getDescriptor(),
               com.google.cloud.documentai.v1beta3.DocumentIoProto.getDescriptor(),
               com.google.cloud.documentai.v1beta3.DocumentAiDocumentSchema.getDescriptor(),
             });
@@ -159,14 +198,60 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
         new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
             internal_static_google_cloud_documentai_v1beta3_Dataset_SpannerIndexingConfig_descriptor,
             new java.lang.String[] {});
-    internal_static_google_cloud_documentai_v1beta3_DatasetSchema_descriptor =
+    internal_static_google_cloud_documentai_v1beta3_DocumentId_descriptor =
         getDescriptor().getMessageTypes().get(1);
+    internal_static_google_cloud_documentai_v1beta3_DocumentId_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_documentai_v1beta3_DocumentId_descriptor,
+            new java.lang.String[] {
+              "GcsManagedDocId", "UnmanagedDocId", "RevisionRef", "Type",
+            });
+    internal_static_google_cloud_documentai_v1beta3_DocumentId_GCSManagedDocumentId_descriptor =
+        internal_static_google_cloud_documentai_v1beta3_DocumentId_descriptor
+            .getNestedTypes()
+            .get(0);
+    internal_static_google_cloud_documentai_v1beta3_DocumentId_GCSManagedDocumentId_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_documentai_v1beta3_DocumentId_GCSManagedDocumentId_descriptor,
+            new java.lang.String[] {
+              "GcsUri", "CwDocId",
+            });
+    internal_static_google_cloud_documentai_v1beta3_DocumentId_UnmanagedDocumentId_descriptor =
+        internal_static_google_cloud_documentai_v1beta3_DocumentId_descriptor
+            .getNestedTypes()
+            .get(1);
+    internal_static_google_cloud_documentai_v1beta3_DocumentId_UnmanagedDocumentId_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_documentai_v1beta3_DocumentId_UnmanagedDocumentId_descriptor,
+            new java.lang.String[] {
+              "DocId",
+            });
+    internal_static_google_cloud_documentai_v1beta3_DatasetSchema_descriptor =
+        getDescriptor().getMessageTypes().get(2);
     internal_static_google_cloud_documentai_v1beta3_DatasetSchema_fieldAccessorTable =
         new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
             internal_static_google_cloud_documentai_v1beta3_DatasetSchema_descriptor,
             new java.lang.String[] {
               "Name", "DocumentSchema",
             });
+    internal_static_google_cloud_documentai_v1beta3_BatchDatasetDocuments_descriptor =
+        getDescriptor().getMessageTypes().get(3);
+    internal_static_google_cloud_documentai_v1beta3_BatchDatasetDocuments_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_documentai_v1beta3_BatchDatasetDocuments_descriptor,
+            new java.lang.String[] {
+              "IndividualDocumentIds", "Filter", "Criteria",
+            });
+    internal_static_google_cloud_documentai_v1beta3_BatchDatasetDocuments_IndividualDocumentIds_descriptor =
+        internal_static_google_cloud_documentai_v1beta3_BatchDatasetDocuments_descriptor
+            .getNestedTypes()
+            .get(0);
+    internal_static_google_cloud_documentai_v1beta3_BatchDatasetDocuments_IndividualDocumentIds_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_documentai_v1beta3_BatchDatasetDocuments_IndividualDocumentIds_descriptor,
+            new java.lang.String[] {
+              "DocumentIds",
+            });
     com.google.protobuf.ExtensionRegistry registry =
         com.google.protobuf.ExtensionRegistry.newInstance();
     registry.add(com.google.api.FieldBehaviorProto.fieldBehavior);
@@ -177,6 +262,7 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
         descriptor, registry);
     com.google.api.FieldBehaviorProto.getDescriptor();
     com.google.api.ResourceProto.getDescriptor();
+    com.google.cloud.documentai.v1beta3.DocumentProto.getDescriptor();
     com.google.cloud.documentai.v1beta3.DocumentIoProto.getDescriptor();
     com.google.cloud.documentai.v1beta3.DocumentAiDocumentSchema.getDescriptor();
   }
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/DatasetSplitType.java b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/DatasetSplitType.java
new file mode 100644
index 000000000000..6d8280a40cb7
--- /dev/null
+++ b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/DatasetSplitType.java
@@ -0,0 +1,203 @@
+/*
+ * Copyright 2023 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/documentai/v1beta3/document_service.proto
+
+package com.google.cloud.documentai.v1beta3;
+
+/**
+ *
+ *
+ * 
+ * Documents belonging to a dataset will be split into different groups
+ * referred to as splits: train, test.
+ * 

+ *
+ * Protobuf enum {@code google.cloud.documentai.v1beta3.DatasetSplitType}
+ */
+public enum DatasetSplitType implements com.google.protobuf.ProtocolMessageEnum {
+  /**
+   *
+   *
+   * 
+   * Default value if the enum is not set.
+   * go/protodosdonts#do-include-an-unspecified-value-in-an-enum
+   * 

+   *
+   * DATASET_SPLIT_TYPE_UNSPECIFIED = 0;
+   */
+  DATASET_SPLIT_TYPE_UNSPECIFIED(0),
+  /**
+   *
+   *
+   * 
+   * Identifies the train documents.
+   * 

+   *
+   * DATASET_SPLIT_TRAIN = 1;
+   */
+  DATASET_SPLIT_TRAIN(1),
+  /**
+   *
+   *
+   * 
+   * Identifies the test documents.
+   * 

+   *
+   * DATASET_SPLIT_TEST = 2;
+   */
+  DATASET_SPLIT_TEST(2),
+  /**
+   *
+   *
+   * 
+   * Identifies the unassigned documents.
+   * 

+   *
+   * DATASET_SPLIT_UNASSIGNED = 3;
+   */
+  DATASET_SPLIT_UNASSIGNED(3),
+  UNRECOGNIZED(-1),
+  ;
+
+  /**
+   *
+   *
+   * 
+   * Default value if the enum is not set.
+   * go/protodosdonts#do-include-an-unspecified-value-in-an-enum
+   * 

+   *
+   * DATASET_SPLIT_TYPE_UNSPECIFIED = 0;
+   */
+  public static final int DATASET_SPLIT_TYPE_UNSPECIFIED_VALUE = 0;
+  /**
+   *
+   *
+   * 
+   * Identifies the train documents.
+   * 

+   *
+   * DATASET_SPLIT_TRAIN = 1;
+   */
+  public static final int DATASET_SPLIT_TRAIN_VALUE = 1;
+  /**
+   *
+   *
+   * 
+   * Identifies the test documents.
+   * 

+   *
+   * DATASET_SPLIT_TEST = 2;
+   */
+  public static final int DATASET_SPLIT_TEST_VALUE = 2;
+  /**
+   *
+   *
+   * 
+   * Identifies the unassigned documents.
+   * 

+   *
+   * DATASET_SPLIT_UNASSIGNED = 3;
+   */
+  public static final int DATASET_SPLIT_UNASSIGNED_VALUE = 3;
+
+  public final int getNumber() {
+    if (this == UNRECOGNIZED) {
+      throw new java.lang.IllegalArgumentException(
+          "Can't get the number of an unknown enum value.");
+    }
+    return value;
+  }
+
+  /**
+   * @param value The numeric wire value of the corresponding enum entry.
+   * @return The enum associated with the given numeric wire value.
+   * @deprecated Use {@link #forNumber(int)} instead.
+   */
+  @java.lang.Deprecated
+  public static DatasetSplitType valueOf(int value) {
+    return forNumber(value);
+  }
+
+  /**
+   * @param value The numeric wire value of the corresponding enum entry.
+   * @return The enum associated with the given numeric wire value.
+   */
+  public static DatasetSplitType forNumber(int value) {
+    switch (value) {
+      case 0:
+        return DATASET_SPLIT_TYPE_UNSPECIFIED;
+      case 1:
+        return DATASET_SPLIT_TRAIN;
+      case 2:
+        return DATASET_SPLIT_TEST;
+      case 3:
+        return DATASET_SPLIT_UNASSIGNED;
+      default:
+        return null;
+    }
+  }
+
+  public static com.google.protobuf.Internal.EnumLiteMap internalGetValueMap() {
+    return internalValueMap;
+  }
+
+  private static final com.google.protobuf.Internal.EnumLiteMap internalValueMap =
+      new com.google.protobuf.Internal.EnumLiteMap() {
+        public DatasetSplitType findValueByNumber(int number) {
+          return DatasetSplitType.forNumber(number);
+        }
+      };
+
+  public final com.google.protobuf.Descriptors.EnumValueDescriptor getValueDescriptor() {
+    if (this == UNRECOGNIZED) {
+      throw new java.lang.IllegalStateException(
+          "Can't get the descriptor of an unrecognized enum value.");
+    }
+    return getDescriptor().getValues().get(ordinal());
+  }
+
+  public final com.google.protobuf.Descriptors.EnumDescriptor getDescriptorForType() {
+    return getDescriptor();
+  }
+
+  public static final com.google.protobuf.Descriptors.EnumDescriptor getDescriptor() {
+    return com.google.cloud.documentai.v1beta3.DocumentAiDocumentService.getDescriptor()
+        .getEnumTypes()
+        .get(0);
+  }
+
+  private static final DatasetSplitType[] VALUES = values();
+
+  public static DatasetSplitType valueOf(com.google.protobuf.Descriptors.EnumValueDescriptor desc) {
+    if (desc.getType() != getDescriptor()) {
+      throw new java.lang.IllegalArgumentException("EnumValueDescriptor is not for this type.");
+    }
+    if (desc.getIndex() == -1) {
+      return UNRECOGNIZED;
+    }
+    return VALUES[desc.getIndex()];
+  }
+
+  private final int value;
+
+  private DatasetSplitType(int value) {
+    this.value = value;
+  }
+
+  // @@protoc_insertion_point(enum_scope:google.cloud.documentai.v1beta3.DatasetSplitType)
+}
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/DocumentAiDocumentService.java b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/DocumentAiDocumentService.java
index 17e4d6cabb1f..f3262f9854f4 100644
--- a/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/DocumentAiDocumentService.java
+++ b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/DocumentAiDocumentService.java
@@ -35,6 +35,58 @@ public static void registerAllExtensions(com.google.protobuf.ExtensionRegistry r
       internal_static_google_cloud_documentai_v1beta3_UpdateDatasetOperationMetadata_descriptor;
   static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
       internal_static_google_cloud_documentai_v1beta3_UpdateDatasetOperationMetadata_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_documentai_v1beta3_ImportDocumentsRequest_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_documentai_v1beta3_ImportDocumentsRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_documentai_v1beta3_ImportDocumentsRequest_BatchDocumentsImportConfig_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_documentai_v1beta3_ImportDocumentsRequest_BatchDocumentsImportConfig_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_documentai_v1beta3_ImportDocumentsRequest_BatchDocumentsImportConfig_AutoSplitConfig_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_documentai_v1beta3_ImportDocumentsRequest_BatchDocumentsImportConfig_AutoSplitConfig_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_documentai_v1beta3_ImportDocumentsResponse_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_documentai_v1beta3_ImportDocumentsResponse_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_documentai_v1beta3_ImportDocumentsMetadata_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_documentai_v1beta3_ImportDocumentsMetadata_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_documentai_v1beta3_ImportDocumentsMetadata_IndividualImportStatus_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_documentai_v1beta3_ImportDocumentsMetadata_IndividualImportStatus_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_documentai_v1beta3_ImportDocumentsMetadata_ImportConfigValidationResult_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_documentai_v1beta3_ImportDocumentsMetadata_ImportConfigValidationResult_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_documentai_v1beta3_GetDocumentRequest_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_documentai_v1beta3_GetDocumentRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_documentai_v1beta3_GetDocumentResponse_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_documentai_v1beta3_GetDocumentResponse_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_documentai_v1beta3_BatchDeleteDocumentsRequest_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_documentai_v1beta3_BatchDeleteDocumentsRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_documentai_v1beta3_BatchDeleteDocumentsResponse_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_documentai_v1beta3_BatchDeleteDocumentsResponse_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_documentai_v1beta3_BatchDeleteDocumentsMetadata_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_documentai_v1beta3_BatchDeleteDocumentsMetadata_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_documentai_v1beta3_BatchDeleteDocumentsMetadata_IndividualBatchDeleteStatus_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_documentai_v1beta3_BatchDeleteDocumentsMetadata_IndividualBatchDeleteStatus_fieldAccessorTable;
   static final com.google.protobuf.Descriptors.Descriptor
       internal_static_google_cloud_documentai_v1beta3_GetDatasetSchemaRequest_descriptor;
   static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
@@ -43,6 +95,10 @@ public static void registerAllExtensions(com.google.protobuf.ExtensionRegistry r
       internal_static_google_cloud_documentai_v1beta3_UpdateDatasetSchemaRequest_descriptor;
   static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
       internal_static_google_cloud_documentai_v1beta3_UpdateDatasetSchemaRequest_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_documentai_v1beta3_DocumentPageRange_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_documentai_v1beta3_DocumentPageRange_fieldAccessorTable;
 
   public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
     return descriptor;
@@ -58,51 +114,134 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
           + "\027google/api/client.proto\032\037google/api/fie"
           + "ld_behavior.proto\032\031google/api/resource.p"
           + "roto\032-google/cloud/documentai/v1beta3/da"
-          + "taset.proto\0328google/cloud/documentai/v1b"
-          + "eta3/operation_metadata.proto\032#google/lo"
-          + "ngrunning/operations.proto\032 google/proto"
-          + "buf/field_mask.proto\"\210\001\n\024UpdateDatasetRe"
-          + "quest\022?\n\007dataset\030\001 \001(\0132(.google.cloud.do"
-          + "cumentai.v1beta3.DatasetB\004\342A\001\002\022/\n\013update"
-          + "_mask\030\002 \001(\0132\032.google.protobuf.FieldMask\""
-          + "s\n\036UpdateDatasetOperationMetadata\022Q\n\017com"
-          + "mon_metadata\030\001 \001(\01328.google.cloud.docume"
-          + "ntai.v1beta3.CommonOperationMetadata\"v\n\027"
-          + "GetDatasetSchemaRequest\022>\n\004name\030\001 \001(\tB0\342"
-          + "A\001\002\372A)\n\'documentai.googleapis.com/Datase"
-          + "tSchema\022\033\n\023visible_fields_only\030\002 \001(\010\"\233\001\n"
-          + "\032UpdateDatasetSchemaRequest\022L\n\016dataset_s"
-          + "chema\030\001 \001(\0132..google.cloud.documentai.v1"
-          + "beta3.DatasetSchemaB\004\342A\001\002\022/\n\013update_mask"
-          + "\030\002 \001(\0132\032.google.protobuf.FieldMask2\317\006\n\017D"
-          + "ocumentService\022\376\001\n\rUpdateDataset\0225.googl"
-          + "e.cloud.documentai.v1beta3.UpdateDataset"
-          + "Request\032\035.google.longrunning.Operation\"\226"
-          + "\001\312A)\n\007Dataset\022\036UpdateDatasetOperationMet"
-          + "adata\332A\023dataset,update_mask\202\323\344\223\002N2C/v1be"
-          + "ta3/{dataset.name=projects/*/locations/*"
-          + "/processors/*/dataset}:\007dataset\022\326\001\n\020GetD"
-          + "atasetSchema\0228.google.cloud.documentai.v"
-          + "1beta3.GetDatasetSchemaRequest\032..google."
-          + "cloud.documentai.v1beta3.DatasetSchema\"X"
-          + "\332A\004name\202\323\344\223\002K\022I/v1beta3/{name=projects/*"
+          + "taset.proto\032.google/cloud/documentai/v1b"
+          + "eta3/document.proto\0321google/cloud/docume"
+          + "ntai/v1beta3/document_io.proto\0328google/c"
+          + "loud/documentai/v1beta3/operation_metada"
+          + "ta.proto\032#google/longrunning/operations."
+          + "proto\032 google/protobuf/field_mask.proto\032"
+          + "\027google/rpc/status.proto\"\210\001\n\024UpdateDatas"
+          + "etRequest\022?\n\007dataset\030\001 \001(\0132(.google.clou"
+          + "d.documentai.v1beta3.DatasetB\004\342A\001\002\022/\n\013up"
+          + "date_mask\030\002 \001(\0132\032.google.protobuf.FieldM"
+          + "ask\"s\n\036UpdateDatasetOperationMetadata\022Q\n"
+          + "\017common_metadata\030\001 \001(\01328.google.cloud.do"
+          + "cumentai.v1beta3.CommonOperationMetadata"
+          + "\"\342\004\n\026ImportDocumentsRequest\022;\n\007dataset\030\001"
+          + " \001(\tB*\342A\001\002\372A#\n!documentai.googleapis.com"
+          + "/Dataset\022\200\001\n\036batch_documents_import_conf"
+          + "igs\030\004 \003(\0132R.google.cloud.documentai.v1be"
+          + "ta3.ImportDocumentsRequest.BatchDocument"
+          + "sImportConfigB\004\342A\001\002\032\207\003\n\032BatchDocumentsIm"
+          + "portConfig\022J\n\rdataset_split\030\002 \001(\01621.goog"
+          + "le.cloud.documentai.v1beta3.DatasetSplit"
+          + "TypeH\000\022\177\n\021auto_split_config\030\003 \001(\0132b.goog"
+          + "le.cloud.documentai.v1beta3.ImportDocume"
+          + "ntsRequest.BatchDocumentsImportConfig.Au"
+          + "toSplitConfigH\000\022V\n\022batch_input_config\030\001 "
+          + "\001(\0132:.google.cloud.documentai.v1beta3.Ba"
+          + "tchDocumentsInputConfig\032/\n\017AutoSplitConf"
+          + "ig\022\034\n\024training_split_ratio\030\001 \001(\002B\023\n\021spli"
+          + "t_type_config\"\031\n\027ImportDocumentsResponse"
+          + "\"\200\005\n\027ImportDocumentsMetadata\022Q\n\017common_m"
+          + "etadata\030\001 \001(\01328.google.cloud.documentai."
+          + "v1beta3.CommonOperationMetadata\022s\n\032indiv"
+          + "idual_import_statuses\030\002 \003(\0132O.google.clo"
+          + "ud.documentai.v1beta3.ImportDocumentsMet"
+          + "adata.IndividualImportStatus\022\177\n import_c"
+          + "onfig_validation_results\030\004 \003(\0132U.google."
+          + "cloud.documentai.v1beta3.ImportDocuments"
+          + "Metadata.ImportConfigValidationResult\022\034\n"
+          + "\024total_document_count\030\003 \001(\005\032\237\001\n\026Individu"
+          + "alImportStatus\022\030\n\020input_gcs_source\030\001 \001(\t"
+          + "\022\"\n\006status\030\002 \001(\0132\022.google.rpc.Status\022G\n\022"
+          + "output_document_id\030\004 \001(\0132+.google.cloud."
+          + "documentai.v1beta3.DocumentId\032\\\n\034ImportC"
+          + "onfigValidationResult\022\030\n\020input_gcs_sourc"
+          + "e\030\001 \001(\t\022\"\n\006status\030\002 \001(\0132\022.google.rpc.Sta"
+          + "tus\"\220\002\n\022GetDocumentRequest\022;\n\007dataset\030\001 "
+          + "\001(\tB*\342A\001\002\372A#\n!documentai.googleapis.com/"
+          + "Dataset\022F\n\013document_id\030\002 \001(\0132+.google.cl"
+          + "oud.documentai.v1beta3.DocumentIdB\004\342A\001\002\022"
+          + "-\n\tread_mask\030\003 \001(\0132\032.google.protobuf.Fie"
+          + "ldMask\022F\n\npage_range\030\004 \001(\01322.google.clou"
+          + "d.documentai.v1beta3.DocumentPageRange\"R"
+          + "\n\023GetDocumentResponse\022;\n\010document\030\001 \001(\0132"
+          + ").google.cloud.documentai.v1beta3.Docume"
+          + "nt\"\215\001\n\033BatchDeleteDocumentsRequest\022\025\n\007da"
+          + "taset\030\001 \001(\tB\004\342A\001\002\022W\n\021dataset_documents\030\003"
+          + " \001(\01326.google.cloud.documentai.v1beta3.B"
+          + "atchDatasetDocumentsB\004\342A\001\002\"\036\n\034BatchDelet"
+          + "eDocumentsResponse\"\271\003\n\034BatchDeleteDocume"
+          + "ntsMetadata\022Q\n\017common_metadata\030\001 \001(\01328.g"
+          + "oogle.cloud.documentai.v1beta3.CommonOpe"
+          + "rationMetadata\022\203\001\n individual_batch_dele"
+          + "te_statuses\030\002 \003(\0132Y.google.cloud.documen"
+          + "tai.v1beta3.BatchDeleteDocumentsMetadata"
+          + ".IndividualBatchDeleteStatus\022\034\n\024total_do"
+          + "cument_count\030\003 \001(\005\022\034\n\024error_document_cou"
+          + "nt\030\004 \001(\005\032\203\001\n\033IndividualBatchDeleteStatus"
+          + "\022@\n\013document_id\030\001 \001(\0132+.google.cloud.doc"
+          + "umentai.v1beta3.DocumentId\022\"\n\006status\030\002 \001"
+          + "(\0132\022.google.rpc.Status\"v\n\027GetDatasetSche"
+          + "maRequest\022>\n\004name\030\001 \001(\tB0\342A\001\002\372A)\n\'docume"
+          + "ntai.googleapis.com/DatasetSchema\022\033\n\023vis"
+          + "ible_fields_only\030\002 \001(\010\"\233\001\n\032UpdateDataset"
+          + "SchemaRequest\022L\n\016dataset_schema\030\001 \001(\0132.."
+          + "google.cloud.documentai.v1beta3.DatasetS"
+          + "chemaB\004\342A\001\002\022/\n\013update_mask\030\002 \001(\0132\032.googl"
+          + "e.protobuf.FieldMask\"/\n\021DocumentPageRang"
+          + "e\022\r\n\005start\030\001 \001(\005\022\013\n\003end\030\002 \001(\005*\205\001\n\020Datase"
+          + "tSplitType\022\"\n\036DATASET_SPLIT_TYPE_UNSPECI"
+          + "FIED\020\000\022\027\n\023DATASET_SPLIT_TRAIN\020\001\022\026\n\022DATAS"
+          + "ET_SPLIT_TEST\020\002\022\034\n\030DATASET_SPLIT_UNASSIG"
+          + "NED\020\0032\317\014\n\017DocumentService\022\376\001\n\rUpdateData"
+          + "set\0225.google.cloud.documentai.v1beta3.Up"
+          + "dateDatasetRequest\032\035.google.longrunning."
+          + "Operation\"\226\001\312A)\n\007Dataset\022\036UpdateDatasetO"
+          + "perationMetadata\332A\023dataset,update_mask\202\323"
+          + "\344\223\002N2C/v1beta3/{dataset.name=projects/*/"
+          + "locations/*/processors/*/dataset}:\007datas"
+          + "et\022\204\002\n\017ImportDocuments\0227.google.cloud.do"
+          + "cumentai.v1beta3.ImportDocumentsRequest\032"
+          + "\035.google.longrunning.Operation\"\230\001\312A2\n\027Im"
+          + "portDocumentsResponse\022\027ImportDocumentsMe"
+          + "tadata\332A\007dataset\202\323\344\223\002S\"N/v1beta3/{datase"
+          + "t=projects/*/locations/*/processors/*/da"
+          + "taset}:importDocuments:\001*\022\326\001\n\013GetDocumen"
+          + "t\0223.google.cloud.documentai.v1beta3.GetD"
+          + "ocumentRequest\0324.google.cloud.documentai"
+          + ".v1beta3.GetDocumentResponse\"\\\332A\007dataset"
+          + "\202\323\344\223\002L\022J/v1beta3/{dataset=projects/*/loc"
+          + "ations/*/processors/*/dataset}:getDocume"
+          + "nt\022\235\002\n\024BatchDeleteDocuments\022<.google.clo"
+          + "ud.documentai.v1beta3.BatchDeleteDocumen"
+          + "tsRequest\032\035.google.longrunning.Operation"
+          + "\"\247\001\312A<\n\034BatchDeleteDocumentsResponse\022\034Ba"
+          + "tchDeleteDocumentsMetadata\332A\007dataset\202\323\344\223"
+          + "\002X\"S/v1beta3/{dataset=projects/*/locatio"
+          + "ns/*/processors/*/dataset}:batchDeleteDo"
+          + "cuments:\001*\022\326\001\n\020GetDatasetSchema\0228.google"
+          + ".cloud.documentai.v1beta3.GetDatasetSche"
+          + "maRequest\032..google.cloud.documentai.v1be"
+          + "ta3.DatasetSchema\"X\332A\004name\202\323\344\223\002K\022I/v1bet"
+          + "a3/{name=projects/*/locations/*/processo"
+          + "rs/*/dataset/datasetSchema}\022\222\002\n\023UpdateDa"
+          + "tasetSchema\022;.google.cloud.documentai.v1"
+          + "beta3.UpdateDatasetSchemaRequest\032..googl"
+          + "e.cloud.documentai.v1beta3.DatasetSchema"
+          + "\"\215\001\332A\032dataset_schema,update_mask\202\323\344\223\002j2X"
+          + "/v1beta3/{dataset_schema.name=projects/*"
           + "/locations/*/processors/*/dataset/datase"
-          + "tSchema}\022\222\002\n\023UpdateDatasetSchema\022;.googl"
-          + "e.cloud.documentai.v1beta3.UpdateDataset"
-          + "SchemaRequest\032..google.cloud.documentai."
-          + "v1beta3.DatasetSchema\"\215\001\332A\032dataset_schem"
-          + "a,update_mask\202\323\344\223\002j2X/v1beta3/{dataset_s"
-          + "chema.name=projects/*/locations/*/proces"
-          + "sors/*/dataset/datasetSchema}:\016dataset_s"
-          + "chema\032M\312A\031documentai.googleapis.com\322A.ht"
-          + "tps://www.googleapis.com/auth/cloud-plat"
-          + "formB\360\001\n#com.google.cloud.documentai.v1b"
-          + "eta3B\031DocumentAiDocumentServiceP\001ZCcloud"
-          + ".google.com/go/documentai/apiv1beta3/doc"
-          + "umentaipb;documentaipb\252\002\037Google.Cloud.Do"
-          + "cumentAI.V1Beta3\312\002\037Google\\Cloud\\Document"
-          + "AI\\V1beta3\352\002\"Google::Cloud::DocumentAI::"
-          + "V1beta3b\006proto3"
+          + "tSchema}:\016dataset_schema\032M\312A\031documentai."
+          + "googleapis.com\322A.https://www.googleapis."
+          + "com/auth/cloud-platformB\360\001\n#com.google.c"
+          + "loud.documentai.v1beta3B\031DocumentAiDocum"
+          + "entServiceP\001ZCcloud.google.com/go/docume"
+          + "ntai/apiv1beta3/documentaipb;documentaip"
+          + "b\252\002\037Google.Cloud.DocumentAI.V1Beta3\312\002\037Go"
+          + "ogle\\Cloud\\DocumentAI\\V1beta3\352\002\"Google::"
+          + "Cloud::DocumentAI::V1beta3b\006proto3"
     };
     descriptor =
         com.google.protobuf.Descriptors.FileDescriptor.internalBuildGeneratedFileFrom(
@@ -113,9 +252,12 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
               com.google.api.FieldBehaviorProto.getDescriptor(),
               com.google.api.ResourceProto.getDescriptor(),
               com.google.cloud.documentai.v1beta3.DatasetProto.getDescriptor(),
+              com.google.cloud.documentai.v1beta3.DocumentProto.getDescriptor(),
+              com.google.cloud.documentai.v1beta3.DocumentIoProto.getDescriptor(),
               com.google.cloud.documentai.v1beta3.OperationMetadataProto.getDescriptor(),
               com.google.longrunning.OperationsProto.getDescriptor(),
               com.google.protobuf.FieldMaskProto.getDescriptor(),
+              com.google.rpc.StatusProto.getDescriptor(),
             });
     internal_static_google_cloud_documentai_v1beta3_UpdateDatasetRequest_descriptor =
         getDescriptor().getMessageTypes().get(0);
@@ -133,8 +275,124 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
             new java.lang.String[] {
               "CommonMetadata",
             });
-    internal_static_google_cloud_documentai_v1beta3_GetDatasetSchemaRequest_descriptor =
+    internal_static_google_cloud_documentai_v1beta3_ImportDocumentsRequest_descriptor =
         getDescriptor().getMessageTypes().get(2);
+    internal_static_google_cloud_documentai_v1beta3_ImportDocumentsRequest_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_documentai_v1beta3_ImportDocumentsRequest_descriptor,
+            new java.lang.String[] {
+              "Dataset", "BatchDocumentsImportConfigs",
+            });
+    internal_static_google_cloud_documentai_v1beta3_ImportDocumentsRequest_BatchDocumentsImportConfig_descriptor =
+        internal_static_google_cloud_documentai_v1beta3_ImportDocumentsRequest_descriptor
+            .getNestedTypes()
+            .get(0);
+    internal_static_google_cloud_documentai_v1beta3_ImportDocumentsRequest_BatchDocumentsImportConfig_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_documentai_v1beta3_ImportDocumentsRequest_BatchDocumentsImportConfig_descriptor,
+            new java.lang.String[] {
+              "DatasetSplit", "AutoSplitConfig", "BatchInputConfig", "SplitTypeConfig",
+            });
+    internal_static_google_cloud_documentai_v1beta3_ImportDocumentsRequest_BatchDocumentsImportConfig_AutoSplitConfig_descriptor =
+        internal_static_google_cloud_documentai_v1beta3_ImportDocumentsRequest_BatchDocumentsImportConfig_descriptor
+            .getNestedTypes()
+            .get(0);
+    internal_static_google_cloud_documentai_v1beta3_ImportDocumentsRequest_BatchDocumentsImportConfig_AutoSplitConfig_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_documentai_v1beta3_ImportDocumentsRequest_BatchDocumentsImportConfig_AutoSplitConfig_descriptor,
+            new java.lang.String[] {
+              "TrainingSplitRatio",
+            });
+    internal_static_google_cloud_documentai_v1beta3_ImportDocumentsResponse_descriptor =
+        getDescriptor().getMessageTypes().get(3);
+    internal_static_google_cloud_documentai_v1beta3_ImportDocumentsResponse_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_documentai_v1beta3_ImportDocumentsResponse_descriptor,
+            new java.lang.String[] {});
+    internal_static_google_cloud_documentai_v1beta3_ImportDocumentsMetadata_descriptor =
+        getDescriptor().getMessageTypes().get(4);
+    internal_static_google_cloud_documentai_v1beta3_ImportDocumentsMetadata_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_documentai_v1beta3_ImportDocumentsMetadata_descriptor,
+            new java.lang.String[] {
+              "CommonMetadata",
+              "IndividualImportStatuses",
+              "ImportConfigValidationResults",
+              "TotalDocumentCount",
+            });
+    internal_static_google_cloud_documentai_v1beta3_ImportDocumentsMetadata_IndividualImportStatus_descriptor =
+        internal_static_google_cloud_documentai_v1beta3_ImportDocumentsMetadata_descriptor
+            .getNestedTypes()
+            .get(0);
+    internal_static_google_cloud_documentai_v1beta3_ImportDocumentsMetadata_IndividualImportStatus_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_documentai_v1beta3_ImportDocumentsMetadata_IndividualImportStatus_descriptor,
+            new java.lang.String[] {
+              "InputGcsSource", "Status", "OutputDocumentId",
+            });
+    internal_static_google_cloud_documentai_v1beta3_ImportDocumentsMetadata_ImportConfigValidationResult_descriptor =
+        internal_static_google_cloud_documentai_v1beta3_ImportDocumentsMetadata_descriptor
+            .getNestedTypes()
+            .get(1);
+    internal_static_google_cloud_documentai_v1beta3_ImportDocumentsMetadata_ImportConfigValidationResult_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_documentai_v1beta3_ImportDocumentsMetadata_ImportConfigValidationResult_descriptor,
+            new java.lang.String[] {
+              "InputGcsSource", "Status",
+            });
+    internal_static_google_cloud_documentai_v1beta3_GetDocumentRequest_descriptor =
+        getDescriptor().getMessageTypes().get(5);
+    internal_static_google_cloud_documentai_v1beta3_GetDocumentRequest_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_documentai_v1beta3_GetDocumentRequest_descriptor,
+            new java.lang.String[] {
+              "Dataset", "DocumentId", "ReadMask", "PageRange",
+            });
+    internal_static_google_cloud_documentai_v1beta3_GetDocumentResponse_descriptor =
+        getDescriptor().getMessageTypes().get(6);
+    internal_static_google_cloud_documentai_v1beta3_GetDocumentResponse_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_documentai_v1beta3_GetDocumentResponse_descriptor,
+            new java.lang.String[] {
+              "Document",
+            });
+    internal_static_google_cloud_documentai_v1beta3_BatchDeleteDocumentsRequest_descriptor =
+        getDescriptor().getMessageTypes().get(7);
+    internal_static_google_cloud_documentai_v1beta3_BatchDeleteDocumentsRequest_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_documentai_v1beta3_BatchDeleteDocumentsRequest_descriptor,
+            new java.lang.String[] {
+              "Dataset", "DatasetDocuments",
+            });
+    internal_static_google_cloud_documentai_v1beta3_BatchDeleteDocumentsResponse_descriptor =
+        getDescriptor().getMessageTypes().get(8);
+    internal_static_google_cloud_documentai_v1beta3_BatchDeleteDocumentsResponse_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_documentai_v1beta3_BatchDeleteDocumentsResponse_descriptor,
+            new java.lang.String[] {});
+    internal_static_google_cloud_documentai_v1beta3_BatchDeleteDocumentsMetadata_descriptor =
+        getDescriptor().getMessageTypes().get(9);
+    internal_static_google_cloud_documentai_v1beta3_BatchDeleteDocumentsMetadata_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_documentai_v1beta3_BatchDeleteDocumentsMetadata_descriptor,
+            new java.lang.String[] {
+              "CommonMetadata",
+              "IndividualBatchDeleteStatuses",
+              "TotalDocumentCount",
+              "ErrorDocumentCount",
+            });
+    internal_static_google_cloud_documentai_v1beta3_BatchDeleteDocumentsMetadata_IndividualBatchDeleteStatus_descriptor =
+        internal_static_google_cloud_documentai_v1beta3_BatchDeleteDocumentsMetadata_descriptor
+            .getNestedTypes()
+            .get(0);
+    internal_static_google_cloud_documentai_v1beta3_BatchDeleteDocumentsMetadata_IndividualBatchDeleteStatus_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_documentai_v1beta3_BatchDeleteDocumentsMetadata_IndividualBatchDeleteStatus_descriptor,
+            new java.lang.String[] {
+              "DocumentId", "Status",
+            });
+    internal_static_google_cloud_documentai_v1beta3_GetDatasetSchemaRequest_descriptor =
+        getDescriptor().getMessageTypes().get(10);
     internal_static_google_cloud_documentai_v1beta3_GetDatasetSchemaRequest_fieldAccessorTable =
         new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
             internal_static_google_cloud_documentai_v1beta3_GetDatasetSchemaRequest_descriptor,
@@ -142,13 +400,21 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
               "Name", "VisibleFieldsOnly",
             });
     internal_static_google_cloud_documentai_v1beta3_UpdateDatasetSchemaRequest_descriptor =
-        getDescriptor().getMessageTypes().get(3);
+        getDescriptor().getMessageTypes().get(11);
     internal_static_google_cloud_documentai_v1beta3_UpdateDatasetSchemaRequest_fieldAccessorTable =
         new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
             internal_static_google_cloud_documentai_v1beta3_UpdateDatasetSchemaRequest_descriptor,
             new java.lang.String[] {
               "DatasetSchema", "UpdateMask",
             });
+    internal_static_google_cloud_documentai_v1beta3_DocumentPageRange_descriptor =
+        getDescriptor().getMessageTypes().get(12);
+    internal_static_google_cloud_documentai_v1beta3_DocumentPageRange_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_documentai_v1beta3_DocumentPageRange_descriptor,
+            new java.lang.String[] {
+              "Start", "End",
+            });
     com.google.protobuf.ExtensionRegistry registry =
         com.google.protobuf.ExtensionRegistry.newInstance();
     registry.add(com.google.api.ClientProto.defaultHost);
@@ -165,9 +431,12 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
     com.google.api.FieldBehaviorProto.getDescriptor();
     com.google.api.ResourceProto.getDescriptor();
     com.google.cloud.documentai.v1beta3.DatasetProto.getDescriptor();
+    com.google.cloud.documentai.v1beta3.DocumentProto.getDescriptor();
+    com.google.cloud.documentai.v1beta3.DocumentIoProto.getDescriptor();
     com.google.cloud.documentai.v1beta3.OperationMetadataProto.getDescriptor();
     com.google.longrunning.OperationsProto.getDescriptor();
     com.google.protobuf.FieldMaskProto.getDescriptor();
+    com.google.rpc.StatusProto.getDescriptor();
   }
 
   // @@protoc_insertion_point(outer_class_scope)
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/DocumentAiProcessor.java b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/DocumentAiProcessor.java
index 9e4cae0afd81..942690943f3c 100644
--- a/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/DocumentAiProcessor.java
+++ b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/DocumentAiProcessor.java
@@ -55,7 +55,7 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
           + "umentai/v1beta3/document_schema.proto\0320g"
           + "oogle/cloud/documentai/v1beta3/evaluatio"
           + "n.proto\032\037google/protobuf/timestamp.proto"
-          + "\"\304\007\n\020ProcessorVersion\022\014\n\004name\030\001 \001(\t\022\024\n\014d"
+          + "\"\312\007\n\020ProcessorVersion\022\014\n\004name\030\001 \001(\t\022\024\n\014d"
           + "isplay_name\030\002 \001(\t\022H\n\017document_schema\030\014 \001"
           + "(\0132/.google.cloud.documentai.v1beta3.Doc"
           + "umentSchema\022F\n\005state\030\006 \001(\01627.google.clou"
@@ -64,42 +64,42 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
           + "uf.Timestamp\022O\n\021latest_evaluation\030\010 \001(\0132"
           + "4.google.cloud.documentai.v1beta3.Evalua"
           + "tionReference\022\024\n\014kms_key_name\030\t \001(\t\022\034\n\024k"
-          + "ms_key_version_name\030\n \001(\t\022\026\n\016google_mana"
-          + "ged\030\013 \001(\010\022[\n\020deprecation_info\030\r \001(\0132A.go"
-          + "ogle.cloud.documentai.v1beta3.ProcessorV"
-          + "ersion.DeprecationInfo\032\237\001\n\017DeprecationIn"
-          + "fo\0224\n\020deprecation_time\030\001 \001(\0132\032.google.pr"
-          + "otobuf.Timestamp\022V\n\035replacement_processo"
-          + "r_version\030\002 \001(\tB/\372A,\n*documentai.googlea"
-          + "pis.com/ProcessorVersion\"\223\001\n\005State\022\025\n\021ST"
-          + "ATE_UNSPECIFIED\020\000\022\014\n\010DEPLOYED\020\001\022\r\n\tDEPLO"
-          + "YING\020\002\022\016\n\nUNDEPLOYED\020\003\022\017\n\013UNDEPLOYING\020\004\022"
-          + "\014\n\010CREATING\020\005\022\014\n\010DELETING\020\006\022\n\n\006FAILED\020\007\022"
-          + "\r\n\tIMPORTING\020\010:\226\001\352A\222\001\n*documentai.google"
-          + "apis.com/ProcessorVersion\022dprojects/{pro"
-          + "ject}/locations/{location}/processors/{p"
-          + "rocessor}/processorVersions/{processor_v"
-          + "ersion}\"\261\004\n\tProcessor\022\023\n\004name\030\001 \001(\tB\005\342A\002"
-          + "\005\003\022\014\n\004type\030\002 \001(\t\022\024\n\014display_name\030\003 \001(\t\022E"
-          + "\n\005state\030\004 \001(\01620.google.cloud.documentai."
-          + "v1beta3.Processor.StateB\004\342A\001\003\022R\n\031default"
-          + "_processor_version\030\t \001(\tB/\372A,\n*documenta"
-          + "i.googleapis.com/ProcessorVersion\022\037\n\020pro"
-          + "cess_endpoint\030\006 \001(\tB\005\342A\002\003\005\022/\n\013create_tim"
-          + "e\030\007 \001(\0132\032.google.protobuf.Timestamp\022\024\n\014k"
-          + "ms_key_name\030\010 \001(\t\"~\n\005State\022\025\n\021STATE_UNSP"
-          + "ECIFIED\020\000\022\013\n\007ENABLED\020\001\022\014\n\010DISABLED\020\002\022\014\n\010"
-          + "ENABLING\020\003\022\r\n\tDISABLING\020\004\022\014\n\010CREATING\020\005\022"
-          + "\n\n\006FAILED\020\006\022\014\n\010DELETING\020\007:h\352Ae\n#document"
-          + "ai.googleapis.com/Processor\022>projects/{p"
-          + "roject}/locations/{location}/processors/"
-          + "{processor}B\352\001\n#com.google.cloud.documen"
-          + "tai.v1beta3B\023DocumentAiProcessorP\001ZCclou"
-          + "d.google.com/go/documentai/apiv1beta3/do"
-          + "cumentaipb;documentaipb\252\002\037Google.Cloud.D"
-          + "ocumentAI.V1Beta3\312\002\037Google\\Cloud\\Documen"
-          + "tAI\\V1beta3\352\002\"Google::Cloud::DocumentAI:"
-          + ":V1beta3b\006proto3"
+          + "ms_key_version_name\030\n \001(\t\022\034\n\016google_mana"
+          + "ged\030\013 \001(\010B\004\342A\001\003\022[\n\020deprecation_info\030\r \001("
+          + "\0132A.google.cloud.documentai.v1beta3.Proc"
+          + "essorVersion.DeprecationInfo\032\237\001\n\017Depreca"
+          + "tionInfo\0224\n\020deprecation_time\030\001 \001(\0132\032.goo"
+          + "gle.protobuf.Timestamp\022V\n\035replacement_pr"
+          + "ocessor_version\030\002 \001(\tB/\372A,\n*documentai.g"
+          + "oogleapis.com/ProcessorVersion\"\223\001\n\005State"
+          + "\022\025\n\021STATE_UNSPECIFIED\020\000\022\014\n\010DEPLOYED\020\001\022\r\n"
+          + "\tDEPLOYING\020\002\022\016\n\nUNDEPLOYED\020\003\022\017\n\013UNDEPLOY"
+          + "ING\020\004\022\014\n\010CREATING\020\005\022\014\n\010DELETING\020\006\022\n\n\006FAI"
+          + "LED\020\007\022\r\n\tIMPORTING\020\010:\226\001\352A\222\001\n*documentai."
+          + "googleapis.com/ProcessorVersion\022dproject"
+          + "s/{project}/locations/{location}/process"
+          + "ors/{processor}/processorVersions/{proce"
+          + "ssor_version}\"\261\004\n\tProcessor\022\023\n\004name\030\001 \001("
+          + "\tB\005\342A\002\005\003\022\014\n\004type\030\002 \001(\t\022\024\n\014display_name\030\003"
+          + " \001(\t\022E\n\005state\030\004 \001(\01620.google.cloud.docum"
+          + "entai.v1beta3.Processor.StateB\004\342A\001\003\022R\n\031d"
+          + "efault_processor_version\030\t \001(\tB/\372A,\n*doc"
+          + "umentai.googleapis.com/ProcessorVersion\022"
+          + "\037\n\020process_endpoint\030\006 \001(\tB\005\342A\002\003\005\022/\n\013crea"
+          + "te_time\030\007 \001(\0132\032.google.protobuf.Timestam"
+          + "p\022\024\n\014kms_key_name\030\010 \001(\t\"~\n\005State\022\025\n\021STAT"
+          + "E_UNSPECIFIED\020\000\022\013\n\007ENABLED\020\001\022\014\n\010DISABLED"
+          + "\020\002\022\014\n\010ENABLING\020\003\022\r\n\tDISABLING\020\004\022\014\n\010CREAT"
+          + "ING\020\005\022\n\n\006FAILED\020\006\022\014\n\010DELETING\020\007:h\352Ae\n#do"
+          + "cumentai.googleapis.com/Processor\022>proje"
+          + "cts/{project}/locations/{location}/proce"
+          + "ssors/{processor}B\352\001\n#com.google.cloud.d"
+          + "ocumentai.v1beta3B\023DocumentAiProcessorP\001"
+          + "ZCcloud.google.com/go/documentai/apiv1be"
+          + "ta3/documentaipb;documentaipb\252\002\037Google.C"
+          + "loud.DocumentAI.V1Beta3\312\002\037Google\\Cloud\\D"
+          + "ocumentAI\\V1beta3\352\002\"Google::Cloud::Docum"
+          + "entAI::V1beta3b\006proto3"
     };
     descriptor =
         com.google.protobuf.Descriptors.FileDescriptor.internalBuildGeneratedFileFrom(
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/DocumentAiProcessorService.java b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/DocumentAiProcessorService.java
index 863ec784bfb2..a38b1321c629 100644
--- a/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/DocumentAiProcessorService.java
+++ b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/DocumentAiProcessorService.java
@@ -292,399 +292,401 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
           + "\037google/protobuf/timestamp.proto\032\027google"
           + "/rpc/status.proto\"P\n\016ProcessOptions\022>\n\no"
           + "cr_config\030\001 \001(\0132*.google.cloud.documenta"
-          + "i.v1beta3.OcrConfig\"\226\003\n\016ProcessRequest\022D"
+          + "i.v1beta3.OcrConfig\"\334\003\n\016ProcessRequest\022D"
           + "\n\017inline_document\030\004 \001(\0132).google.cloud.d"
           + "ocumentai.v1beta3.DocumentH\000\022D\n\014raw_docu"
           + "ment\030\005 \001(\0132,.google.cloud.documentai.v1b"
-          + "eta3.RawDocumentH\000\022\030\n\004name\030\001 \001(\tB\n\342A\001\002\372A"
-          + "\003\n\001*\022?\n\010document\030\002 \001(\0132).google.cloud.do"
-          + "cumentai.v1beta3.DocumentB\002\030\001\022\031\n\021skip_hu"
-          + "man_review\030\003 \001(\010\022.\n\nfield_mask\030\006 \001(\0132\032.g"
-          + "oogle.protobuf.FieldMask\022H\n\017process_opti"
-          + "ons\030\007 \001(\0132/.google.cloud.documentai.v1be"
-          + "ta3.ProcessOptionsB\010\n\006source\"\363\001\n\021HumanRe"
-          + "viewStatus\022G\n\005state\030\001 \001(\01628.google.cloud"
-          + ".documentai.v1beta3.HumanReviewStatus.St"
-          + "ate\022\025\n\rstate_message\030\002 \001(\t\022\036\n\026human_revi"
-          + "ew_operation\030\003 \001(\t\"^\n\005State\022\025\n\021STATE_UNS"
-          + "PECIFIED\020\000\022\013\n\007SKIPPED\020\001\022\025\n\021VALIDATION_PA"
-          + "SSED\020\002\022\017\n\013IN_PROGRESS\020\003\022\t\n\005ERROR\020\004\"\303\001\n\017P"
-          + "rocessResponse\022;\n\010document\030\001 \001(\0132).googl"
-          + "e.cloud.documentai.v1beta3.Document\022\"\n\026h"
-          + "uman_review_operation\030\002 \001(\tB\002\030\001\022O\n\023human"
-          + "_review_status\030\003 \001(\01322.google.cloud.docu"
-          + "mentai.v1beta3.HumanReviewStatus\"\366\004\n\023Bat"
-          + "chProcessRequest\022\030\n\004name\030\001 \001(\tB\n\342A\001\002\372A\003\n"
-          + "\001*\022`\n\rinput_configs\030\002 \003(\0132E.google.cloud"
-          + ".documentai.v1beta3.BatchProcessRequest."
-          + "BatchInputConfigB\002\030\001\022a\n\routput_config\030\003 "
-          + "\001(\0132F.google.cloud.documentai.v1beta3.Ba"
-          + "tchProcessRequest.BatchOutputConfigB\002\030\001\022"
-          + "S\n\017input_documents\030\005 \001(\0132:.google.cloud."
-          + "documentai.v1beta3.BatchDocumentsInputCo"
-          + "nfig\022U\n\026document_output_config\030\006 \001(\01325.g"
-          + "oogle.cloud.documentai.v1beta3.DocumentO"
-          + "utputConfig\022\031\n\021skip_human_review\030\004 \001(\010\022H"
-          + "\n\017process_options\030\007 \001(\0132/.google.cloud.d"
-          + "ocumentai.v1beta3.ProcessOptions\032=\n\020Batc"
-          + "hInputConfig\022\022\n\ngcs_source\030\001 \001(\t\022\021\n\tmime"
-          + "_type\030\002 \001(\t:\002\030\001\0320\n\021BatchOutputConfig\022\027\n\017"
-          + "gcs_destination\030\001 \001(\t:\002\030\001\"\026\n\024BatchProces"
-          + "sResponse\"\262\005\n\024BatchProcessMetadata\022J\n\005st"
-          + "ate\030\001 \001(\0162;.google.cloud.documentai.v1be"
-          + "ta3.BatchProcessMetadata.State\022\025\n\rstate_"
-          + "message\030\002 \001(\t\022/\n\013create_time\030\003 \001(\0132\032.goo"
-          + "gle.protobuf.Timestamp\022/\n\013update_time\030\004 "
-          + "\001(\0132\032.google.protobuf.Timestamp\022r\n\033indiv"
-          + "idual_process_statuses\030\005 \003(\0132M.google.cl"
-          + "oud.documentai.v1beta3.BatchProcessMetad"
-          + "ata.IndividualProcessStatus\032\354\001\n\027Individu"
-          + "alProcessStatus\022\030\n\020input_gcs_source\030\001 \001("
-          + "\t\022\"\n\006status\030\002 \001(\0132\022.google.rpc.Status\022\036\n"
-          + "\026output_gcs_destination\030\003 \001(\t\022\"\n\026human_r"
-          + "eview_operation\030\004 \001(\tB\002\030\001\022O\n\023human_revie"
-          + "w_status\030\005 \001(\01322.google.cloud.documentai"
-          + ".v1beta3.HumanReviewStatus\"r\n\005State\022\025\n\021S"
-          + "TATE_UNSPECIFIED\020\000\022\013\n\007WAITING\020\001\022\013\n\007RUNNI"
-          + "NG\020\002\022\r\n\tSUCCEEDED\020\003\022\016\n\nCANCELLING\020\004\022\r\n\tC"
-          + "ANCELLED\020\005\022\n\n\006FAILED\020\006\"^\n\032FetchProcessor"
-          + "TypesRequest\022@\n\006parent\030\001 \001(\tB0\342A\001\002\372A)\022\'d"
-          + "ocumentai.googleapis.com/ProcessorType\"f"
-          + "\n\033FetchProcessorTypesResponse\022G\n\017process"
-          + "or_types\030\001 \003(\0132..google.cloud.documentai"
-          + ".v1beta3.ProcessorType\"\204\001\n\031ListProcessor"
-          + "TypesRequest\022@\n\006parent\030\001 \001(\tB0\342A\001\002\372A)\022\'d"
-          + "ocumentai.googleapis.com/ProcessorType\022\021"
-          + "\n\tpage_size\030\002 \001(\005\022\022\n\npage_token\030\003 \001(\t\"~\n"
-          + "\032ListProcessorTypesResponse\022G\n\017processor"
-          + "_types\030\001 \003(\0132..google.cloud.documentai.v"
-          + "1beta3.ProcessorType\022\027\n\017next_page_token\030"
-          + "\002 \001(\t\"|\n\025ListProcessorsRequest\022<\n\006parent"
-          + "\030\001 \001(\tB,\342A\001\002\372A%\022#documentai.googleapis.c"
-          + "om/Processor\022\021\n\tpage_size\030\002 \001(\005\022\022\n\npage_"
-          + "token\030\003 \001(\t\"q\n\026ListProcessorsResponse\022>\n"
-          + "\nprocessors\030\001 \003(\0132*.google.cloud.documen"
-          + "tai.v1beta3.Processor\022\027\n\017next_page_token"
-          + "\030\002 \001(\t\"Y\n\027GetProcessorTypeRequest\022>\n\004nam"
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-          + "com/ProcessorType\"Q\n\023GetProcessorRequest"
-          + "\022:\n\004name\030\001 \001(\tB,\342A\001\002\372A%\n#documentai.goog"
-          + "leapis.com/Processor\"_\n\032GetProcessorVers"
-          + "ionRequest\022A\n\004name\030\001 \001(\tB3\342A\001\002\372A,\n*docum"
-          + "entai.googleapis.com/ProcessorVersion\"\212\001"
-          + "\n\034ListProcessorVersionsRequest\022C\n\006parent"
-          + "\030\001 \001(\tB3\342A\001\002\372A,\022*documentai.googleapis.c"
-          + "om/ProcessorVersion\022\021\n\tpage_size\030\002 \001(\005\022\022"
-          + "\n\npage_token\030\003 \001(\t\"\207\001\n\035ListProcessorVers"
-          + "ionsResponse\022M\n\022processor_versions\030\001 \003(\013"
-          + "21.google.cloud.documentai.v1beta3.Proce"
-          + "ssorVersion\022\027\n\017next_page_token\030\002 \001(\t\"b\n\035"
-          + "DeleteProcessorVersionRequest\022A\n\004name\030\001 "
-          + "\001(\tB3\342A\001\002\372A,\n*documentai.googleapis.com/"
-          + "ProcessorVersion\"s\n\036DeleteProcessorVersi"
-          + "onMetadata\022Q\n\017common_metadata\030\001 \001(\01328.go"
-          + "ogle.cloud.documentai.v1beta3.CommonOper"
-          + "ationMetadata\"b\n\035DeployProcessorVersionR"
-          + "equest\022A\n\004name\030\001 \001(\tB3\342A\001\002\372A,\n*documenta"
-          + "i.googleapis.com/ProcessorVersion\" \n\036Dep"
-          + "loyProcessorVersionResponse\"s\n\036DeployPro"
-          + "cessorVersionMetadata\022Q\n\017common_metadata"
-          + "\030\001 \001(\01328.google.cloud.documentai.v1beta3"
-          + ".CommonOperationMetadata\"d\n\037UndeployProc"
+          + "eta3.RawDocumentH\000\022D\n\014gcs_document\030\010 \001(\013"
+          + "2,.google.cloud.documentai.v1beta3.GcsDo"
+          + "cumentH\000\022\030\n\004name\030\001 \001(\tB\n\342A\001\002\372A\003\n\001*\022?\n\010do"
+          + "cument\030\002 \001(\0132).google.cloud.documentai.v"
+          + "1beta3.DocumentB\002\030\001\022\031\n\021skip_human_review"
+          + "\030\003 \001(\010\022.\n\nfield_mask\030\006 \001(\0132\032.google.prot"
+          + "obuf.FieldMask\022H\n\017process_options\030\007 \001(\0132"
+          + "/.google.cloud.documentai.v1beta3.Proces"
+          + "sOptionsB\010\n\006source\"\363\001\n\021HumanReviewStatus"
+          + "\022G\n\005state\030\001 \001(\01628.google.cloud.documenta"
+          + "i.v1beta3.HumanReviewStatus.State\022\025\n\rsta"
+          + "te_message\030\002 \001(\t\022\036\n\026human_review_operati"
+          + "on\030\003 \001(\t\"^\n\005State\022\025\n\021STATE_UNSPECIFIED\020\000"
+          + "\022\013\n\007SKIPPED\020\001\022\025\n\021VALIDATION_PASSED\020\002\022\017\n\013"
+          + "IN_PROGRESS\020\003\022\t\n\005ERROR\020\004\"\303\001\n\017ProcessResp"
+          + "onse\022;\n\010document\030\001 \001(\0132).google.cloud.do"
+          + "cumentai.v1beta3.Document\022\"\n\026human_revie"
+          + "w_operation\030\002 \001(\tB\002\030\001\022O\n\023human_review_st"
+          + "atus\030\003 \001(\01322.google.cloud.documentai.v1b"
+          + "eta3.HumanReviewStatus\"\366\004\n\023BatchProcessR"
+          + "equest\022\030\n\004name\030\001 \001(\tB\n\342A\001\002\372A\003\n\001*\022`\n\rinpu"
+          + "t_configs\030\002 \003(\0132E.google.cloud.documenta"
+          + "i.v1beta3.BatchProcessRequest.BatchInput"
+          + "ConfigB\002\030\001\022a\n\routput_config\030\003 \001(\0132F.goog"
+          + "le.cloud.documentai.v1beta3.BatchProcess"
+          + "Request.BatchOutputConfigB\002\030\001\022S\n\017input_d"
+          + "ocuments\030\005 \001(\0132:.google.cloud.documentai"
+          + ".v1beta3.BatchDocumentsInputConfig\022U\n\026do"
+          + "cument_output_config\030\006 \001(\01325.google.clou"
+          + "d.documentai.v1beta3.DocumentOutputConfi"
+          + "g\022\031\n\021skip_human_review\030\004 \001(\010\022H\n\017process_"
+          + "options\030\007 \001(\0132/.google.cloud.documentai."
+          + "v1beta3.ProcessOptions\032=\n\020BatchInputConf"
+          + "ig\022\022\n\ngcs_source\030\001 \001(\t\022\021\n\tmime_type\030\002 \001("
+          + "\t:\002\030\001\0320\n\021BatchOutputConfig\022\027\n\017gcs_destin"
+          + "ation\030\001 \001(\t:\002\030\001\"\026\n\024BatchProcessResponse\""
+          + "\262\005\n\024BatchProcessMetadata\022J\n\005state\030\001 \001(\0162"
+          + ";.google.cloud.documentai.v1beta3.BatchP"
+          + "rocessMetadata.State\022\025\n\rstate_message\030\002 "
+          + "\001(\t\022/\n\013create_time\030\003 \001(\0132\032.google.protob"
+          + "uf.Timestamp\022/\n\013update_time\030\004 \001(\0132\032.goog"
+          + "le.protobuf.Timestamp\022r\n\033individual_proc"
+          + "ess_statuses\030\005 \003(\0132M.google.cloud.docume"
+          + "ntai.v1beta3.BatchProcessMetadata.Indivi"
+          + "dualProcessStatus\032\354\001\n\027IndividualProcessS"
+          + "tatus\022\030\n\020input_gcs_source\030\001 \001(\t\022\"\n\006statu"
+          + "s\030\002 \001(\0132\022.google.rpc.Status\022\036\n\026output_gc"
+          + "s_destination\030\003 \001(\t\022\"\n\026human_review_oper"
+          + "ation\030\004 \001(\tB\002\030\001\022O\n\023human_review_status\030\005"
+          + " \001(\01322.google.cloud.documentai.v1beta3.H"
+          + "umanReviewStatus\"r\n\005State\022\025\n\021STATE_UNSPE"
+          + "CIFIED\020\000\022\013\n\007WAITING\020\001\022\013\n\007RUNNING\020\002\022\r\n\tSU"
+          + "CCEEDED\020\003\022\016\n\nCANCELLING\020\004\022\r\n\tCANCELLED\020\005"
+          + "\022\n\n\006FAILED\020\006\"^\n\032FetchProcessorTypesReque"
+          + "st\022@\n\006parent\030\001 \001(\tB0\342A\001\002\372A)\022\'documentai."
+          + "googleapis.com/ProcessorType\"f\n\033FetchPro"
+          + "cessorTypesResponse\022G\n\017processor_types\030\001"
+          + " \003(\0132..google.cloud.documentai.v1beta3.P"
+          + "rocessorType\"\204\001\n\031ListProcessorTypesReque"
+          + "st\022@\n\006parent\030\001 \001(\tB0\342A\001\002\372A)\022\'documentai."
+          + "googleapis.com/ProcessorType\022\021\n\tpage_siz"
+          + "e\030\002 \001(\005\022\022\n\npage_token\030\003 \001(\t\"~\n\032ListProce"
+          + "ssorTypesResponse\022G\n\017processor_types\030\001 \003"
+          + "(\0132..google.cloud.documentai.v1beta3.Pro"
+          + "cessorType\022\027\n\017next_page_token\030\002 \001(\t\"|\n\025L"
+          + "istProcessorsRequest\022<\n\006parent\030\001 \001(\tB,\342A"
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-          + "ocess:\001*\022\337\001\n\023FetchProcessorTypes\022;.googl"
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-          + "rTypesRequest\032<.google.cloud.documentai."
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-          + "parent\202\323\344\223\002>\022\022\n\035TrainP"
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-          + "rocessor\"B\332A\004name\202\323\344\223\0025\0223/v1beta3/{name="
-          + "projects/*/locations/*/processors/*}\022\254\002\n"
-          + "\025TrainProcessorVersion\022=.google.cloud.do"
-          + "cumentai.v1beta3.TrainProcessorVersionRe"
-          + "quest\032\035.google.longrunning.Operation\"\264\001\312"
-          + "A>\n\035TrainProcessorVersionResponse\022\035Train"
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-          + "ects/*/locations/*/processors/*}/process"
-          + "orVersions:train:\001*\022\335\001\n\023GetProcessorVers"
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-          + "loud.documentai.v1beta3.ListProcessorVer"
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-          + "le.cloud.documentai.v1beta3.DeleteProces"
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-          + "DeployProcessorVersion\022>.google.cloud.do"
-          + "cumentai.v1beta3.DeployProcessorVersionR"
-          + "equest\032\035.google.longrunning.Operation\"\243\001"
-          + "\312A@\n\036DeployProcessorVersionResponse\022\036Dep"
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-          + ":\001*\022\247\002\n\030UndeployProcessorVersion\022@.googl"
-          + "e.cloud.documentai.v1beta3.UndeployProce"
+          + "VersionRequest\0321.google.cloud.documentai"
+          + ".v1beta3.ProcessorVersion\"V\332A\004name\202\323\344\223\002I"
+          + "\022G/v1beta3/{name=projects/*/locations/*/"
+          + "processors/*/processorVersions/*}\022\360\001\n\025Li"
+          + "stProcessorVersions\022=.google.cloud.docum"
+          + "entai.v1beta3.ListProcessorVersionsReque"
+          + "st\032>.google.cloud.documentai.v1beta3.Lis"
+          + "tProcessorVersionsResponse\"X\332A\006parent\202\323\344"
+          + "\223\002I\022G/v1beta3/{parent=projects/*/locatio"
+          + "ns/*/processors/*}/processorVersions\022\212\002\n"
+          + "\026DeleteProcessorVersion\022>.google.cloud.d"
+          + "ocumentai.v1beta3.DeleteProcessorVersion"
+          + "Request\032\035.google.longrunning.Operation\"\220"
+          + "\001\312A7\n\025google.protobuf.Empty\022\036DeleteProce"
+          + "ssorVersionMetadata\332A\004name\202\323\344\223\002I*G/v1bet"
+          + "a3/{name=projects/*/locations/*/processo"
+          + "rs/*/processorVersions/*}\022\235\002\n\026DeployProc"
+          + "essorVersion\022>.google.cloud.documentai.v"
+          + "1beta3.DeployProcessorVersionRequest\032\035.g"
+          + "oogle.longrunning.Operation\"\243\001\312A@\n\036Deplo"
+          + "yProcessorVersionResponse\022\036DeployProcess"
+          + "orVersionMetadata\332A\004name\202\323\344\223\002S\"N/v1beta3"
+          + "/{name=projects/*/locations/*/processors"
+          + "/*/processorVersions/*}:deploy:\001*\022\247\002\n\030Un"
+          + "deployProcessorVersion\022@.google.cloud.do"
+          + "cumentai.v1beta3.UndeployProcessorVersio"
+          + "nRequest\032\035.google.longrunning.Operation\""
+          + "\251\001\312AD\n UndeployProcessorVersionResponse\022"
+          + " UndeployProcessorVersionMetadata\332A\004name"
+          + "\202\323\344\223\002U\"P/v1beta3/{name=projects/*/locati"
+          + "ons/*/processors/*/processorVersions/*}:"
+          + "undeploy:\001*\022\321\001\n\017CreateProcessor\0227.google"
+          + ".cloud.documentai.v1beta3.CreateProcesso"
+          + "rRequest\032*.google.cloud.documentai.v1bet"
+          + "a3.Processor\"Y\332A\020parent,processor\202\323\344\223\002@\""
+          + "3/v1beta3/{parent=projects/*/locations/*"
+          + "}/processors:\tprocessor\022\340\001\n\017DeleteProces"
+          + "sor\0227.google.cloud.documentai.v1beta3.De"
+          + "leteProcessorRequest\032\035.google.longrunnin"
+          + "g.Operation\"u\312A0\n\025google.protobuf.Empty\022"
+          + "\027DeleteProcessorMetadata\332A\004name\202\323\344\223\0025*3/"
+          + "v1beta3/{name=projects/*/locations/*/pro"
+          + "cessors/*}\022\345\001\n\017EnableProcessor\0227.google."
+          + "cloud.documentai.v1beta3.EnableProcessor"
+          + "Request\032\035.google.longrunning.Operation\"z"
+          + "\312A2\n\027EnableProcessorResponse\022\027EnableProc"
+          + "essorMetadata\202\323\344\223\002?\":/v1beta3/{name=proj"
+          + "ects/*/locations/*/processors/*}:enable:"
+          + "\001*\022\352\001\n\020DisableProcessor\0228.google.cloud.d"
+          + "ocumentai.v1beta3.DisableProcessorReques"
+          + "t\032\035.google.longrunning.Operation\"}\312A4\n\030D"
+          + "isableProcessorResponse\022\030DisableProcesso"
+          + "rMetadata\202\323\344\223\002@\";/v1beta3/{name=projects"
+          + "/*/locations/*/processors/*}:disable:\001*\022"
+          + "\253\002\n\032SetDefaultProcessorVersion\022B.google."
+          + "cloud.documentai.v1beta3.SetDefaultProce"
           + "ssorVersionRequest\032\035.google.longrunning."
-          + "Operation\"\251\001\312AD\n UndeployProcessorVersio"
-          + "nResponse\022 UndeployProcessorVersionMetad"
-          + "ata\332A\004name\202\323\344\223\002U\"P/v1beta3/{name=project"
-          + "s/*/locations/*/processors/*/processorVe"
-          + "rsions/*}:undeploy:\001*\022\321\001\n\017CreateProcesso"
-          + "r\0227.google.cloud.documentai.v1beta3.Crea"
-          + "teProcessorRequest\032*.google.cloud.docume"
-          + "ntai.v1beta3.Processor\"Y\332A\020parent,proces"
-          + "sor\202\323\344\223\002@\"3/v1beta3/{parent=projects/*/l"
-          + "ocations/*}/processors:\tprocessor\022\340\001\n\017De"
-          + "leteProcessor\0227.google.cloud.documentai."
-          + "v1beta3.DeleteProcessorRequest\032\035.google."
-          + "longrunning.Operation\"u\312A0\n\025google.proto"
-          + "buf.Empty\022\027DeleteProcessorMetadata\332A\004nam"
-          + "e\202\323\344\223\0025*3/v1beta3/{name=projects/*/locat"
-          + "ions/*/processors/*}\022\345\001\n\017EnableProcessor"
-          + "\0227.google.cloud.documentai.v1beta3.Enabl"
-          + "eProcessorRequest\032\035.google.longrunning.O"
-          + "peration\"z\312A2\n\027EnableProcessorResponse\022\027"
-          + "EnableProcessorMetadata\202\323\344\223\002?\":/v1beta3/"
-          + "{name=projects/*/locations/*/processors/"
-          + "*}:enable:\001*\022\352\001\n\020DisableProcessor\0228.goog"
-          + "le.cloud.documentai.v1beta3.DisableProce"
-          + "ssorRequest\032\035.google.longrunning.Operati"
-          + "on\"}\312A4\n\030DisableProcessorResponse\022\030Disab"
-          + "leProcessorMetadata\202\323\344\223\002@\";/v1beta3/{nam"
-          + "e=projects/*/locations/*/processors/*}:d"
-          + "isable:\001*\022\253\002\n\032SetDefaultProcessorVersion"
-          + "\022B.google.cloud.documentai.v1beta3.SetDe"
-          + "faultProcessorVersionRequest\032\035.google.lo"
-          + "ngrunning.Operation\"\251\001\312AH\n\"SetDefaultPro"
-          + "cessorVersionResponse\022\"SetDefaultProcess"
-          + "orVersionMetadata\202\323\344\223\002X\"S/v1beta3/{proce"
-          + "ssor=projects/*/locations/*/processors/*"
-          + "}:setDefaultProcessorVersion:\001*\022\252\002\n\016Revi"
-          + "ewDocument\0226.google.cloud.documentai.v1b"
-          + "eta3.ReviewDocumentRequest\032\035.google.long"
-          + "running.Operation\"\300\001\312A9\n\026ReviewDocumentR"
-          + "esponse\022\037ReviewDocumentOperationMetadata"
-          + "\332A\023human_review_config\202\323\344\223\002h\"c/v1beta3/{"
-          + "human_review_config=projects/*/locations"
-          + "/*/processors/*/humanReviewConfig}:revie"
-          + "wDocument:\001*\022\321\002\n\030EvaluateProcessorVersio"
-          + "n\022@.google.cloud.documentai.v1beta3.Eval"
-          + "uateProcessorVersionRequest\032\035.google.lon"
-          + "grunning.Operation\"\323\001\312AD\n EvaluateProces"
-          + "sorVersionResponse\022 EvaluateProcessorVer"
-          + "sionMetadata\332A\021processor_version\202\323\344\223\002r\"m"
-          + "/v1beta3/{processor_version=projects/*/l"
-          + "ocations/*/processors/*/processorVersion"
-          + "s/*}:evaluateProcessorVersion:\001*\022\331\001\n\rGet"
-          + "Evaluation\0225.google.cloud.documentai.v1b"
-          + "eta3.GetEvaluationRequest\032+.google.cloud"
-          + ".documentai.v1beta3.Evaluation\"d\332A\004name\202"
-          + "\323\344\223\002W\022U/v1beta3/{name=projects/*/locatio"
-          + "ns/*/processors/*/processorVersions/*/ev"
-          + "aluations/*}\022\354\001\n\017ListEvaluations\0227.googl"
-          + "e.cloud.documentai.v1beta3.ListEvaluatio"
-          + "nsRequest\0328.google.cloud.documentai.v1be"
-          + "ta3.ListEvaluationsResponse\"f\332A\006parent\202\323"
-          + "\344\223\002W\022U/v1beta3/{parent=projects/*/locati"
-          + "ons/*/processors/*/processorVersions/*}/"
-          + "evaluations\022\257\002\n\026ImportProcessorVersion\022>"
-          + ".google.cloud.documentai.v1beta3.ImportP"
-          + "rocessorVersionRequest\032\035.google.longrunn"
-          + "ing.Operation\"\265\001\312A@\n\036ImportProcessorVers"
-          + "ionResponse\022\036ImportProcessorVersionMetad"
-          + "ata\332A\006parent\202\323\344\223\002c\"^/v1beta3/{parent=pro"
-          + "jects/*/locations/*/processors/*}/proces"
-          + "sorVersions:importProcessorVersion:\001*\032M\312"
-          + "A\031documentai.googleapis.com\322A.https://ww",
-      "w.googleapis.com/auth/cloud-platformB\303\003\n"
-          + "#com.google.cloud.documentai.v1beta3B\032Do"
-          + "cumentAiProcessorServiceP\001ZCcloud.google"
-          + ".com/go/documentai/apiv1beta3/documentai"
-          + "pb;documentaipb\252\002\037Google.Cloud.DocumentA"
-          + "I.V1Beta3\312\002\037Google\\Cloud\\DocumentAI\\V1be"
-          + "ta3\352\002\"Google::Cloud::DocumentAI::V1beta3"
-          + "\352A\177\n+documentai.googleapis.com/HumanRevi"
-          + "ewConfig\022Pprojects/{project}/locations/{"
-          + "location}/processors/{processor}/humanRe"
-          + "viewConfig\352AM\n\"documentai.googleapis.com"
-          + "/Location\022\'projects/{project}/locations/"
-          + "{location}b\006proto3"
+          + "Operation\"\251\001\312AH\n\"SetDefaultProcessorVers"
+          + "ionResponse\022\"SetDefaultProcessorVersionM"
+          + "etadata\202\323\344\223\002X\"S/v1beta3/{processor=proje"
+          + "cts/*/locations/*/processors/*}:setDefau"
+          + "ltProcessorVersion:\001*\022\252\002\n\016ReviewDocument"
+          + "\0226.google.cloud.documentai.v1beta3.Revie"
+          + "wDocumentRequest\032\035.google.longrunning.Op"
+          + "eration\"\300\001\312A9\n\026ReviewDocumentResponse\022\037R"
+          + "eviewDocumentOperationMetadata\332A\023human_r"
+          + "eview_config\202\323\344\223\002h\"c/v1beta3/{human_revi"
+          + "ew_config=projects/*/locations/*/process"
+          + "ors/*/humanReviewConfig}:reviewDocument:"
+          + "\001*\022\321\002\n\030EvaluateProcessorVersion\022@.google"
+          + ".cloud.documentai.v1beta3.EvaluateProces"
+          + "sorVersionRequest\032\035.google.longrunning.O"
+          + "peration\"\323\001\312AD\n EvaluateProcessorVersion"
+          + "Response\022 EvaluateProcessorVersionMetada"
+          + "ta\332A\021processor_version\202\323\344\223\002r\"m/v1beta3/{"
+          + "processor_version=projects/*/locations/*"
+          + "/processors/*/processorVersions/*}:evalu"
+          + "ateProcessorVersion:\001*\022\331\001\n\rGetEvaluation"
+          + "\0225.google.cloud.documentai.v1beta3.GetEv"
+          + "aluationRequest\032+.google.cloud.documenta"
+          + "i.v1beta3.Evaluation\"d\332A\004name\202\323\344\223\002W\022U/v1"
+          + "beta3/{name=projects/*/locations/*/proce"
+          + "ssors/*/processorVersions/*/evaluations/"
+          + "*}\022\354\001\n\017ListEvaluations\0227.google.cloud.do"
+          + "cumentai.v1beta3.ListEvaluationsRequest\032"
+          + "8.google.cloud.documentai.v1beta3.ListEv"
+          + "aluationsResponse\"f\332A\006parent\202\323\344\223\002W\022U/v1b"
+          + "eta3/{parent=projects/*/locations/*/proc"
+          + "essors/*/processorVersions/*}/evaluation"
+          + "s\022\257\002\n\026ImportProcessorVersion\022>.google.cl"
+          + "oud.documentai.v1beta3.ImportProcessorVe"
+          + "rsionRequest\032\035.google.longrunning.Operat"
+          + "ion\"\265\001\312A@\n\036ImportProcessorVersionRespons"
+          + "e\022\036ImportProcessorVersionMetadata\332A\006pare"
+          + "nt\202\323\344\223\002c\"^/v1beta3/{parent=projects/*/lo"
+          + "cations/*/processors/*}/processorVersion",
+      "s:importProcessorVersion:\001*\032M\312A\031document"
+          + "ai.googleapis.com\322A.https://www.googleap"
+          + "is.com/auth/cloud-platformB\303\003\n#com.googl"
+          + "e.cloud.documentai.v1beta3B\032DocumentAiPr"
+          + "ocessorServiceP\001ZCcloud.google.com/go/do"
+          + "cumentai/apiv1beta3/documentaipb;documen"
+          + "taipb\252\002\037Google.Cloud.DocumentAI.V1Beta3\312"
+          + "\002\037Google\\Cloud\\DocumentAI\\V1beta3\352\002\"Goog"
+          + "le::Cloud::DocumentAI::V1beta3\352A\177\n+docum"
+          + "entai.googleapis.com/HumanReviewConfig\022P"
+          + "projects/{project}/locations/{location}/"
+          + "processors/{processor}/humanReviewConfig"
+          + "\352AM\n\"documentai.googleapis.com/Location\022"
+          + "\'projects/{project}/locations/{location}"
+          + "b\006proto3"
     };
     descriptor =
         com.google.protobuf.Descriptors.FileDescriptor.internalBuildGeneratedFileFrom(
@@ -723,6 +725,7 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
             new java.lang.String[] {
               "InlineDocument",
               "RawDocument",
+              "GcsDocument",
               "Name",
               "Document",
               "SkipHumanReview",
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/DocumentId.java b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/DocumentId.java
new file mode 100644
index 000000000000..a3f5d57a1540
--- /dev/null
+++ b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/DocumentId.java
@@ -0,0 +1,2983 @@
+/*
+ * Copyright 2023 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/documentai/v1beta3/dataset.proto
+
+package com.google.cloud.documentai.v1beta3;
+
+/**
+ *
+ *
+ * 
+ * Document Identifier.
+ * 

+ *
+ * Protobuf type {@code google.cloud.documentai.v1beta3.DocumentId}
+ */
+public final class DocumentId extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.documentai.v1beta3.DocumentId)
+    DocumentIdOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use DocumentId.newBuilder() to construct.
+  private DocumentId(com.google.protobuf.GeneratedMessageV3.Builder builder) {
+    super(builder);
+  }
+
+  private DocumentId() {}
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new DocumentId();
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.documentai.v1beta3.DatasetProto
+        .internal_static_google_cloud_documentai_v1beta3_DocumentId_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.documentai.v1beta3.DatasetProto
+        .internal_static_google_cloud_documentai_v1beta3_DocumentId_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.documentai.v1beta3.DocumentId.class,
+            com.google.cloud.documentai.v1beta3.DocumentId.Builder.class);
+  }
+
+  public interface GCSManagedDocumentIdOrBuilder
+      extends
+      // @@protoc_insertion_point(interface_extends:google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId)
+      com.google.protobuf.MessageOrBuilder {
+
+    /**
+     *
+     *
+     * 
+     * Required. The Cloud Storage URI where the actual document is stored.
+     * 

+     *
+     * string gcs_uri = 1 [(.google.api.field_behavior) = REQUIRED];
+     *
+     * @return The gcsUri.
+     */
+    java.lang.String getGcsUri();
+    /**
+     *
+     *
+     * 
+     * Required. The Cloud Storage URI where the actual document is stored.
+     * 

+     *
+     * string gcs_uri = 1 [(.google.api.field_behavior) = REQUIRED];
+     *
+     * @return The bytes for gcsUri.
+     */
+    com.google.protobuf.ByteString getGcsUriBytes();
+
+    /**
+     *
+     *
+     * 
+     * Id of the document (indexed) managed by Content Warehouse.
+     * 

+     *
+     * string cw_doc_id = 2 [deprecated = true];
+     *
+     * @deprecated google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId.cw_doc_id is
+     *     deprecated. See google/cloud/documentai/v1beta3/dataset.proto;l=133
+     * @return The cwDocId.
+     */
+    @java.lang.Deprecated
+    java.lang.String getCwDocId();
+    /**
+     *
+     *
+     * 
+     * Id of the document (indexed) managed by Content Warehouse.
+     * 

+     *
+     * string cw_doc_id = 2 [deprecated = true];
+     *
+     * @deprecated google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId.cw_doc_id is
+     *     deprecated. See google/cloud/documentai/v1beta3/dataset.proto;l=133
+     * @return The bytes for cwDocId.
+     */
+    @java.lang.Deprecated
+    com.google.protobuf.ByteString getCwDocIdBytes();
+  }
+  /**
+   *
+   *
+   * 
+   * Identifies a document uniquely within the scope of a dataset in the
+   * user-managed Cloud Storage option.
+   * 

+   *
+   * Protobuf type {@code google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId}
+   */
+  public static final class GCSManagedDocumentId extends com.google.protobuf.GeneratedMessageV3
+      implements
+      // @@protoc_insertion_point(message_implements:google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId)
+      GCSManagedDocumentIdOrBuilder {
+    private static final long serialVersionUID = 0L;
+    // Use GCSManagedDocumentId.newBuilder() to construct.
+    private GCSManagedDocumentId(com.google.protobuf.GeneratedMessageV3.Builder builder) {
+      super(builder);
+    }
+
+    private GCSManagedDocumentId() {
+      gcsUri_ = "";
+      cwDocId_ = "";
+    }
+
+    @java.lang.Override
+    @SuppressWarnings({"unused"})
+    protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+      return new GCSManagedDocumentId();
+    }
+
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.documentai.v1beta3.DatasetProto
+          .internal_static_google_cloud_documentai_v1beta3_DocumentId_GCSManagedDocumentId_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.documentai.v1beta3.DatasetProto
+          .internal_static_google_cloud_documentai_v1beta3_DocumentId_GCSManagedDocumentId_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId.class,
+              com.google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId.Builder.class);
+    }
+
+    public static final int GCS_URI_FIELD_NUMBER = 1;
+
+    @SuppressWarnings("serial")
+    private volatile java.lang.Object gcsUri_ = "";
+    /**
+     *
+     *
+     * 
+     * Required. The Cloud Storage URI where the actual document is stored.
+     * 

+     *
+     * string gcs_uri = 1 [(.google.api.field_behavior) = REQUIRED];
+     *
+     * @return The gcsUri.
+     */
+    @java.lang.Override
+    public java.lang.String getGcsUri() {
+      java.lang.Object ref = gcsUri_;
+      if (ref instanceof java.lang.String) {
+        return (java.lang.String) ref;
+      } else {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        gcsUri_ = s;
+        return s;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The Cloud Storage URI where the actual document is stored.
+     * 

+     *
+     * string gcs_uri = 1 [(.google.api.field_behavior) = REQUIRED];
+     *
+     * @return The bytes for gcsUri.
+     */
+    @java.lang.Override
+    public com.google.protobuf.ByteString getGcsUriBytes() {
+      java.lang.Object ref = gcsUri_;
+      if (ref instanceof java.lang.String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        gcsUri_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+
+    public static final int CW_DOC_ID_FIELD_NUMBER = 2;
+
+    @SuppressWarnings("serial")
+    private volatile java.lang.Object cwDocId_ = "";
+    /**
+     *
+     *
+     * 
+     * Id of the document (indexed) managed by Content Warehouse.
+     * 

+     *
+     * string cw_doc_id = 2 [deprecated = true];
+     *
+     * @deprecated google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId.cw_doc_id is
+     *     deprecated. See google/cloud/documentai/v1beta3/dataset.proto;l=133
+     * @return The cwDocId.
+     */
+    @java.lang.Override
+    @java.lang.Deprecated
+    public java.lang.String getCwDocId() {
+      java.lang.Object ref = cwDocId_;
+      if (ref instanceof java.lang.String) {
+        return (java.lang.String) ref;
+      } else {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        cwDocId_ = s;
+        return s;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Id of the document (indexed) managed by Content Warehouse.
+     * 

+     *
+     * string cw_doc_id = 2 [deprecated = true];
+     *
+     * @deprecated google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId.cw_doc_id is
+     *     deprecated. See google/cloud/documentai/v1beta3/dataset.proto;l=133
+     * @return The bytes for cwDocId.
+     */
+    @java.lang.Override
+    @java.lang.Deprecated
+    public com.google.protobuf.ByteString getCwDocIdBytes() {
+      java.lang.Object ref = cwDocId_;
+      if (ref instanceof java.lang.String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        cwDocId_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+
+    private byte memoizedIsInitialized = -1;
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      byte isInitialized = memoizedIsInitialized;
+      if (isInitialized == 1) return true;
+      if (isInitialized == 0) return false;
+
+      memoizedIsInitialized = 1;
+      return true;
+    }
+
+    @java.lang.Override
+    public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(gcsUri_)) {
+        com.google.protobuf.GeneratedMessageV3.writeString(output, 1, gcsUri_);
+      }
+      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(cwDocId_)) {
+        com.google.protobuf.GeneratedMessageV3.writeString(output, 2, cwDocId_);
+      }
+      getUnknownFields().writeTo(output);
+    }
+
+    @java.lang.Override
+    public int getSerializedSize() {
+      int size = memoizedSize;
+      if (size != -1) return size;
+
+      size = 0;
+      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(gcsUri_)) {
+        size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, gcsUri_);
+      }
+      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(cwDocId_)) {
+        size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, cwDocId_);
+      }
+      size += getUnknownFields().getSerializedSize();
+      memoizedSize = size;
+      return size;
+    }
+
+    @java.lang.Override
+    public boolean equals(final java.lang.Object obj) {
+      if (obj == this) {
+        return true;
+      }
+      if (!(obj instanceof com.google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId)) {
+        return super.equals(obj);
+      }
+      com.google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId other =
+          (com.google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId) obj;
+
+      if (!getGcsUri().equals(other.getGcsUri())) return false;
+      if (!getCwDocId().equals(other.getCwDocId())) return false;
+      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
+      return true;
+    }
+
+    @java.lang.Override
+    public int hashCode() {
+      if (memoizedHashCode != 0) {
+        return memoizedHashCode;
+      }
+      int hash = 41;
+      hash = (19 * hash) + getDescriptor().hashCode();
+      hash = (37 * hash) + GCS_URI_FIELD_NUMBER;
+      hash = (53 * hash) + getGcsUri().hashCode();
+      hash = (37 * hash) + CW_DOC_ID_FIELD_NUMBER;
+      hash = (53 * hash) + getCwDocId().hashCode();
+      hash = (29 * hash) + getUnknownFields().hashCode();
+      memoizedHashCode = hash;
+      return hash;
+    }
+
+    public static com.google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId parseFrom(
+        java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId parseFrom(
+        java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId parseFrom(
+        com.google.protobuf.ByteString data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId parseFrom(
+        com.google.protobuf.ByteString data,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId parseFrom(
+        byte[] data) throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId parseFrom(
+        byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId parseFrom(
+        java.io.InputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId parseFrom(
+        java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    public static com.google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId
+        parseDelimitedFrom(java.io.InputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId
+        parseDelimitedFrom(
+            java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    public static com.google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId parseFrom(
+        com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId parseFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    @java.lang.Override
+    public Builder newBuilderForType() {
+      return newBuilder();
+    }
+
+    public static Builder newBuilder() {
+      return DEFAULT_INSTANCE.toBuilder();
+    }
+
+    public static Builder newBuilder(
+        com.google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId prototype) {
+      return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+    }
+
+    @java.lang.Override
+    public Builder toBuilder() {
+      return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+    }
+
+    @java.lang.Override
+    protected Builder newBuilderForType(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      Builder builder = new Builder(parent);
+      return builder;
+    }
+    /**
+     *
+     *
+     * 
+     * Identifies a document uniquely within the scope of a dataset in the
+     * user-managed Cloud Storage option.
+     * 

+     *
+     * Protobuf type {@code google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId}
+     */
+    public static final class Builder
+        extends com.google.protobuf.GeneratedMessageV3.Builder
+        implements
+        // @@protoc_insertion_point(builder_implements:google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId)
+        com.google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentIdOrBuilder {
+      public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+        return com.google.cloud.documentai.v1beta3.DatasetProto
+            .internal_static_google_cloud_documentai_v1beta3_DocumentId_GCSManagedDocumentId_descriptor;
+      }
+
+      @java.lang.Override
+      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+          internalGetFieldAccessorTable() {
+        return com.google.cloud.documentai.v1beta3.DatasetProto
+            .internal_static_google_cloud_documentai_v1beta3_DocumentId_GCSManagedDocumentId_fieldAccessorTable
+            .ensureFieldAccessorsInitialized(
+                com.google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId.class,
+                com.google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId.Builder.class);
+      }
+
+      // Construct using
+      // com.google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId.newBuilder()
+      private Builder() {}
+
+      private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+        super(parent);
+      }
+
+      @java.lang.Override
+      public Builder clear() {
+        super.clear();
+        bitField0_ = 0;
+        gcsUri_ = "";
+        cwDocId_ = "";
+        return this;
+      }
+
+      @java.lang.Override
+      public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+        return com.google.cloud.documentai.v1beta3.DatasetProto
+            .internal_static_google_cloud_documentai_v1beta3_DocumentId_GCSManagedDocumentId_descriptor;
+      }
+
+      @java.lang.Override
+      public com.google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId
+          getDefaultInstanceForType() {
+        return com.google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId
+            .getDefaultInstance();
+      }
+
+      @java.lang.Override
+      public com.google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId build() {
+        com.google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId result = buildPartial();
+        if (!result.isInitialized()) {
+          throw newUninitializedMessageException(result);
+        }
+        return result;
+      }
+
+      @java.lang.Override
+      public com.google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId buildPartial() {
+        com.google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId result =
+            new com.google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId(this);
+        if (bitField0_ != 0) {
+          buildPartial0(result);
+        }
+        onBuilt();
+        return result;
+      }
+
+      private void buildPartial0(
+          com.google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId result) {
+        int from_bitField0_ = bitField0_;
+        if (((from_bitField0_ & 0x00000001) != 0)) {
+          result.gcsUri_ = gcsUri_;
+        }
+        if (((from_bitField0_ & 0x00000002) != 0)) {
+          result.cwDocId_ = cwDocId_;
+        }
+      }
+
+      @java.lang.Override
+      public Builder clone() {
+        return super.clone();
+      }
+
+      @java.lang.Override
+      public Builder setField(
+          com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+        return super.setField(field, value);
+      }
+
+      @java.lang.Override
+      public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+        return super.clearField(field);
+      }
+
+      @java.lang.Override
+      public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+        return super.clearOneof(oneof);
+      }
+
+      @java.lang.Override
+      public Builder setRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field,
+          int index,
+          java.lang.Object value) {
+        return super.setRepeatedField(field, index, value);
+      }
+
+      @java.lang.Override
+      public Builder addRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+        return super.addRepeatedField(field, value);
+      }
+
+      @java.lang.Override
+      public Builder mergeFrom(com.google.protobuf.Message other) {
+        if (other instanceof com.google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId) {
+          return mergeFrom(
+              (com.google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId) other);
+        } else {
+          super.mergeFrom(other);
+          return this;
+        }
+      }
+
+      public Builder mergeFrom(
+          com.google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId other) {
+        if (other
+            == com.google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId
+                .getDefaultInstance()) return this;
+        if (!other.getGcsUri().isEmpty()) {
+          gcsUri_ = other.gcsUri_;
+          bitField0_ |= 0x00000001;
+          onChanged();
+        }
+        if (!other.getCwDocId().isEmpty()) {
+          cwDocId_ = other.cwDocId_;
+          bitField0_ |= 0x00000002;
+          onChanged();
+        }
+        this.mergeUnknownFields(other.getUnknownFields());
+        onChanged();
+        return this;
+      }
+
+      @java.lang.Override
+      public final boolean isInitialized() {
+        return true;
+      }
+
+      @java.lang.Override
+      public Builder mergeFrom(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+        if (extensionRegistry == null) {
+          throw new java.lang.NullPointerException();
+        }
+        try {
+          boolean done = false;
+          while (!done) {
+            int tag = input.readTag();
+            switch (tag) {
+              case 0:
+                done = true;
+                break;
+              case 10:
+                {
+                  gcsUri_ = input.readStringRequireUtf8();
+                  bitField0_ |= 0x00000001;
+                  break;
+                } // case 10
+              case 18:
+                {
+                  cwDocId_ = input.readStringRequireUtf8();
+                  bitField0_ |= 0x00000002;
+                  break;
+                } // case 18
+              default:
+                {
+                  if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                    done = true; // was an endgroup tag
+                  }
+                  break;
+                } // default:
+            } // switch (tag)
+          } // while (!done)
+        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          throw e.unwrapIOException();
+        } finally {
+          onChanged();
+        } // finally
+        return this;
+      }
+
+      private int bitField0_;
+
+      private java.lang.Object gcsUri_ = "";
+      /**
+       *
+       *
+       * 
+       * Required. The Cloud Storage URI where the actual document is stored.
+       * 

+       *
+       * string gcs_uri = 1 [(.google.api.field_behavior) = REQUIRED];
+       *
+       * @return The gcsUri.
+       */
+      public java.lang.String getGcsUri() {
+        java.lang.Object ref = gcsUri_;
+        if (!(ref instanceof java.lang.String)) {
+          com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+          java.lang.String s = bs.toStringUtf8();
+          gcsUri_ = s;
+          return s;
+        } else {
+          return (java.lang.String) ref;
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * Required. The Cloud Storage URI where the actual document is stored.
+       * 

+       *
+       * string gcs_uri = 1 [(.google.api.field_behavior) = REQUIRED];
+       *
+       * @return The bytes for gcsUri.
+       */
+      public com.google.protobuf.ByteString getGcsUriBytes() {
+        java.lang.Object ref = gcsUri_;
+        if (ref instanceof String) {
+          com.google.protobuf.ByteString b =
+              com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+          gcsUri_ = b;
+          return b;
+        } else {
+          return (com.google.protobuf.ByteString) ref;
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * Required. The Cloud Storage URI where the actual document is stored.
+       * 

+       *
+       * string gcs_uri = 1 [(.google.api.field_behavior) = REQUIRED];
+       *
+       * @param value The gcsUri to set.
+       * @return This builder for chaining.
+       */
+      public Builder setGcsUri(java.lang.String value) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        gcsUri_ = value;
+        bitField0_ |= 0x00000001;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * Required. The Cloud Storage URI where the actual document is stored.
+       * 

+       *
+       * string gcs_uri = 1 [(.google.api.field_behavior) = REQUIRED];
+       *
+       * @return This builder for chaining.
+       */
+      public Builder clearGcsUri() {
+        gcsUri_ = getDefaultInstance().getGcsUri();
+        bitField0_ = (bitField0_ & ~0x00000001);
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * Required. The Cloud Storage URI where the actual document is stored.
+       * 

+       *
+       * string gcs_uri = 1 [(.google.api.field_behavior) = REQUIRED];
+       *
+       * @param value The bytes for gcsUri to set.
+       * @return This builder for chaining.
+       */
+      public Builder setGcsUriBytes(com.google.protobuf.ByteString value) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        checkByteStringIsUtf8(value);
+        gcsUri_ = value;
+        bitField0_ |= 0x00000001;
+        onChanged();
+        return this;
+      }
+
+      private java.lang.Object cwDocId_ = "";
+      /**
+       *
+       *
+       * 
+       * Id of the document (indexed) managed by Content Warehouse.
+       * 

+       *
+       * string cw_doc_id = 2 [deprecated = true];
+       *
+       * @deprecated google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId.cw_doc_id is
+       *     deprecated. See google/cloud/documentai/v1beta3/dataset.proto;l=133
+       * @return The cwDocId.
+       */
+      @java.lang.Deprecated
+      public java.lang.String getCwDocId() {
+        java.lang.Object ref = cwDocId_;
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+          com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+          java.lang.String s = bs.toStringUtf8();
+          cwDocId_ = s;
+          return s;
+        } else {
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+        }
+      }
+      /**
+       *
+       *
+       * 
+       * Id of the document (indexed) managed by Content Warehouse.
+       * 

+       *
+       * string cw_doc_id = 2 [deprecated = true];
+       *
+       * @deprecated google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId.cw_doc_id is
+       *     deprecated. See google/cloud/documentai/v1beta3/dataset.proto;l=133
+       * @return The bytes for cwDocId.
+       */
+      @java.lang.Deprecated
+      public com.google.protobuf.ByteString getCwDocIdBytes() {
+        java.lang.Object ref = cwDocId_;
+        if (ref instanceof String) {
+          com.google.protobuf.ByteString b =
+              com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+          cwDocId_ = b;
+          return b;
+        } else {
+          return (com.google.protobuf.ByteString) ref;
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * Id of the document (indexed) managed by Content Warehouse.
+       * 

+       *
+       * string cw_doc_id = 2 [deprecated = true];
+       *
+       * @deprecated google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId.cw_doc_id is
+       *     deprecated. See google/cloud/documentai/v1beta3/dataset.proto;l=133
+       * @param value The cwDocId to set.
+       * @return This builder for chaining.
+       */
+      @java.lang.Deprecated
+      public Builder setCwDocId(java.lang.String value) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        cwDocId_ = value;
+        bitField0_ |= 0x00000002;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * Id of the document (indexed) managed by Content Warehouse.
+       * 

+       *
+       * string cw_doc_id = 2 [deprecated = true];
+       *
+       * @deprecated google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId.cw_doc_id is
+       *     deprecated. See google/cloud/documentai/v1beta3/dataset.proto;l=133
+       * @return This builder for chaining.
+       */
+      @java.lang.Deprecated
+      public Builder clearCwDocId() {
+        cwDocId_ = getDefaultInstance().getCwDocId();
+        bitField0_ = (bitField0_ & ~0x00000002);
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * Id of the document (indexed) managed by Content Warehouse.
+       * 

+       *
+       * string cw_doc_id = 2 [deprecated = true];
+       *
+       * @deprecated google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId.cw_doc_id is
+       *     deprecated. See google/cloud/documentai/v1beta3/dataset.proto;l=133
+       * @param value The bytes for cwDocId to set.
+       * @return This builder for chaining.
+       */
+      @java.lang.Deprecated
+      public Builder setCwDocIdBytes(com.google.protobuf.ByteString value) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        checkByteStringIsUtf8(value);
+        cwDocId_ = value;
+        bitField0_ |= 0x00000002;
+        onChanged();
+        return this;
+      }
+
+      @java.lang.Override
+      public final Builder setUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.setUnknownFields(unknownFields);
+      }
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+      @java.lang.Override
+      public final Builder mergeUnknownFields(
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+        return super.mergeUnknownFields(unknownFields);
+      }
+
+      // @@protoc_insertion_point(builder_scope:google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId)
+    }
+
+    // @@protoc_insertion_point(class_scope:google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId)
+    private static final com.google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId
+        DEFAULT_INSTANCE;
+
+    static {
+      DEFAULT_INSTANCE = new com.google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId();
+    }
+
+    public static com.google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId
+        getDefaultInstance() {
+      return DEFAULT_INSTANCE;
+    }
+
+    private static final com.google.protobuf.Parser PARSER =
+        new com.google.protobuf.AbstractParser() {
+          @java.lang.Override
+          public GCSManagedDocumentId parsePartialFrom(
+              com.google.protobuf.CodedInputStream input,
+              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+              throws com.google.protobuf.InvalidProtocolBufferException {
+            Builder builder = newBuilder();
+            try {
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+            } catch (com.google.protobuf.InvalidProtocolBufferException e) {
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+            return builder.buildPartial();
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+    public static com.google.protobuf.Parser parser() {
+      return PARSER;
+    }
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+    @java.lang.Override
+    public com.google.protobuf.Parser getParserForType() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId
+        getDefaultInstanceForType() {
+      return DEFAULT_INSTANCE;
+    }
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+
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+      com.google.protobuf.MessageOrBuilder {
+
+    /**
+     *
+     *
+     * 
+     * Required. The id of the document.
+     * 

+     *
+     * string doc_id = 1 [(.google.api.field_behavior) = REQUIRED];
+     *
+     * @return The docId.
+     */
+    java.lang.String getDocId();
+    /**
+     *
+     *
+     * 
+     * Required. The id of the document.
+     * 

+     *
+     * string doc_id = 1 [(.google.api.field_behavior) = REQUIRED];
+     *
+     * @return The bytes for docId.
+     */
+    com.google.protobuf.ByteString getDocIdBytes();
+  }
+  /**
+   *
+   *
+   * 
+   * Identifies a document uniquely within the scope of a dataset in unmanaged
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+   * 

+   *
+   * Protobuf type {@code google.cloud.documentai.v1beta3.DocumentId.UnmanagedDocumentId}
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+    @SuppressWarnings({"unused"})
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+    }
+
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
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+    @SuppressWarnings("serial")
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+    /**
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+     *
+     * 
+     * Required. The id of the document.
+     * 

+     *
+     * string doc_id = 1 [(.google.api.field_behavior) = REQUIRED];
+     *
+     * @return The docId.
+     */
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+        return s;
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+    /**
+     *
+     *
+     * 
+     * Required. The id of the document.
+     * 

+     *
+     * string doc_id = 1 [(.google.api.field_behavior) = REQUIRED];
+     *
+     * @return The bytes for docId.
+     */
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+      if (isInitialized == 0) return false;
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+      memoizedIsInitialized = 1;
+      return true;
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+      memoizedSize = size;
+      return size;
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+    @java.lang.Override
+    public boolean equals(final java.lang.Object obj) {
+      if (obj == this) {
+        return true;
+      }
+      if (!(obj instanceof com.google.cloud.documentai.v1beta3.DocumentId.UnmanagedDocumentId)) {
+        return super.equals(obj);
+      }
+      com.google.cloud.documentai.v1beta3.DocumentId.UnmanagedDocumentId other =
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+
+      if (!getDocId().equals(other.getDocId())) return false;
+      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
+      return true;
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+    @java.lang.Override
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+      int hash = 41;
+      hash = (19 * hash) + getDescriptor().hashCode();
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+      memoizedHashCode = hash;
+      return hash;
+    }
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+        java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.documentai.v1beta3.DocumentId.UnmanagedDocumentId parseFrom(
+        java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.documentai.v1beta3.DocumentId.UnmanagedDocumentId parseFrom(
+        com.google.protobuf.ByteString data)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.documentai.v1beta3.DocumentId.UnmanagedDocumentId parseFrom(
+        com.google.protobuf.ByteString data,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
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+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.documentai.v1beta3.DocumentId.UnmanagedDocumentId parseFrom(
+        byte[] data) throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.documentai.v1beta3.DocumentId.UnmanagedDocumentId parseFrom(
+        byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
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+    public static com.google.cloud.documentai.v1beta3.DocumentId.UnmanagedDocumentId parseFrom(
+        java.io.InputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
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+    public static com.google.cloud.documentai.v1beta3.DocumentId.UnmanagedDocumentId parseFrom(
+        java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
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+        parseDelimitedFrom(java.io.InputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.documentai.v1beta3.DocumentId.UnmanagedDocumentId
+        parseDelimitedFrom(
+            java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
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+    }
+
+    public static com.google.cloud.documentai.v1beta3.DocumentId.UnmanagedDocumentId parseFrom(
+        com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.documentai.v1beta3.DocumentId.UnmanagedDocumentId parseFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    @java.lang.Override
+    public Builder newBuilderForType() {
+      return newBuilder();
+    }
+
+    public static Builder newBuilder() {
+      return DEFAULT_INSTANCE.toBuilder();
+    }
+
+    public static Builder newBuilder(
+        com.google.cloud.documentai.v1beta3.DocumentId.UnmanagedDocumentId prototype) {
+      return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+    }
+
+    @java.lang.Override
+    public Builder toBuilder() {
+      return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+    }
+
+    @java.lang.Override
+    protected Builder newBuilderForType(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      Builder builder = new Builder(parent);
+      return builder;
+    }
+    /**
+     *
+     *
+     * 
+     * Identifies a document uniquely within the scope of a dataset in unmanaged
+     * option.
+     * 

+     *
+     * Protobuf type {@code google.cloud.documentai.v1beta3.DocumentId.UnmanagedDocumentId}
+     */
+    public static final class Builder
+        extends com.google.protobuf.GeneratedMessageV3.Builder
+        implements
+        // @@protoc_insertion_point(builder_implements:google.cloud.documentai.v1beta3.DocumentId.UnmanagedDocumentId)
+        com.google.cloud.documentai.v1beta3.DocumentId.UnmanagedDocumentIdOrBuilder {
+      public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+        return com.google.cloud.documentai.v1beta3.DatasetProto
+            .internal_static_google_cloud_documentai_v1beta3_DocumentId_UnmanagedDocumentId_descriptor;
+      }
+
+      @java.lang.Override
+      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
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+            .ensureFieldAccessorsInitialized(
+                com.google.cloud.documentai.v1beta3.DocumentId.UnmanagedDocumentId.class,
+                com.google.cloud.documentai.v1beta3.DocumentId.UnmanagedDocumentId.Builder.class);
+      }
+
+      // Construct using
+      // com.google.cloud.documentai.v1beta3.DocumentId.UnmanagedDocumentId.newBuilder()
+      private Builder() {}
+
+      private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
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+      @java.lang.Override
+      public Builder clear() {
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+        bitField0_ = 0;
+        docId_ = "";
+        return this;
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+      @java.lang.Override
+      public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+        return com.google.cloud.documentai.v1beta3.DatasetProto
+            .internal_static_google_cloud_documentai_v1beta3_DocumentId_UnmanagedDocumentId_descriptor;
+      }
+
+      @java.lang.Override
+      public com.google.cloud.documentai.v1beta3.DocumentId.UnmanagedDocumentId
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+        return result;
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+      private void buildPartial0(
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+      @java.lang.Override
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+      @java.lang.Override
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+      @java.lang.Override
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+      @java.lang.Override
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+      @java.lang.Override
+      public Builder mergeFrom(com.google.protobuf.Message other) {
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+          return this;
+        }
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+      public Builder mergeFrom(
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+
+      @java.lang.Override
+      public final boolean isInitialized() {
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+
+      @java.lang.Override
+      public Builder mergeFrom(
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+          } // while (!done)
+        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          throw e.unwrapIOException();
+        } finally {
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+        } // finally
+        return this;
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+      private int bitField0_;
+
+      private java.lang.Object docId_ = "";
+      /**
+       *
+       *
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+       * 

+       *
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+       *
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+       *
+       *
+       * 
+       * Required. The id of the document.
+       * 

+       *
+       * string doc_id = 1 [(.google.api.field_behavior) = REQUIRED];
+       *
+       * @return The bytes for docId.
+       */
+      public com.google.protobuf.ByteString getDocIdBytes() {
+        java.lang.Object ref = docId_;
+        if (ref instanceof String) {
+          com.google.protobuf.ByteString b =
+              com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+          docId_ = b;
+          return b;
+        } else {
+          return (com.google.protobuf.ByteString) ref;
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * Required. The id of the document.
+       * 

+       *
+       * string doc_id = 1 [(.google.api.field_behavior) = REQUIRED];
+       *
+       * @param value The docId to set.
+       * @return This builder for chaining.
+       */
+      public Builder setDocId(java.lang.String value) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        docId_ = value;
+        bitField0_ |= 0x00000001;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * Required. The id of the document.
+       * 

+       *
+       * string doc_id = 1 [(.google.api.field_behavior) = REQUIRED];
+       *
+       * @return This builder for chaining.
+       */
+      public Builder clearDocId() {
+        docId_ = getDefaultInstance().getDocId();
+        bitField0_ = (bitField0_ & ~0x00000001);
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * Required. The id of the document.
+       * 

+       *
+       * string doc_id = 1 [(.google.api.field_behavior) = REQUIRED];
+       *
+       * @param value The bytes for docId to set.
+       * @return This builder for chaining.
+       */
+      public Builder setDocIdBytes(com.google.protobuf.ByteString value) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        checkByteStringIsUtf8(value);
+        docId_ = value;
+        bitField0_ |= 0x00000001;
+        onChanged();
+        return this;
+      }
+
+      @java.lang.Override
+      public final Builder setUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.setUnknownFields(unknownFields);
+      }
+
+      @java.lang.Override
+      public final Builder mergeUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.mergeUnknownFields(unknownFields);
+      }
+
+      // @@protoc_insertion_point(builder_scope:google.cloud.documentai.v1beta3.DocumentId.UnmanagedDocumentId)
+    }
+
+    // @@protoc_insertion_point(class_scope:google.cloud.documentai.v1beta3.DocumentId.UnmanagedDocumentId)
+    private static final com.google.cloud.documentai.v1beta3.DocumentId.UnmanagedDocumentId
+        DEFAULT_INSTANCE;
+
+    static {
+      DEFAULT_INSTANCE = new com.google.cloud.documentai.v1beta3.DocumentId.UnmanagedDocumentId();
+    }
+
+    public static com.google.cloud.documentai.v1beta3.DocumentId.UnmanagedDocumentId
+        getDefaultInstance() {
+      return DEFAULT_INSTANCE;
+    }
+
+    private static final com.google.protobuf.Parser PARSER =
+        new com.google.protobuf.AbstractParser() {
+          @java.lang.Override
+          public UnmanagedDocumentId parsePartialFrom(
+              com.google.protobuf.CodedInputStream input,
+              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+              throws com.google.protobuf.InvalidProtocolBufferException {
+            Builder builder = newBuilder();
+            try {
+              builder.mergeFrom(input, extensionRegistry);
+            } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+              throw e.setUnfinishedMessage(builder.buildPartial());
+            } catch (com.google.protobuf.UninitializedMessageException e) {
+              throw e.asInvalidProtocolBufferException()
+                  .setUnfinishedMessage(builder.buildPartial());
+            } catch (java.io.IOException e) {
+              throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                  .setUnfinishedMessage(builder.buildPartial());
+            }
+            return builder.buildPartial();
+          }
+        };
+
+    public static com.google.protobuf.Parser parser() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Parser getParserForType() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta3.DocumentId.UnmanagedDocumentId
+        getDefaultInstanceForType() {
+      return DEFAULT_INSTANCE;
+    }
+  }
+
+  private int typeCase_ = 0;
+
+  @SuppressWarnings("serial")
+  private java.lang.Object type_;
+
+  public enum TypeCase
+      implements
+          com.google.protobuf.Internal.EnumLite,
+          com.google.protobuf.AbstractMessage.InternalOneOfEnum {
+    GCS_MANAGED_DOC_ID(1),
+    UNMANAGED_DOC_ID(4),
+    TYPE_NOT_SET(0);
+    private final int value;
+
+    private TypeCase(int value) {
+      this.value = value;
+    }
+    /**
+     * @param value The number of the enum to look for.
+     * @return The enum associated with the given number.
+     * @deprecated Use {@link #forNumber(int)} instead.
+     */
+    @java.lang.Deprecated
+    public static TypeCase valueOf(int value) {
+      return forNumber(value);
+    }
+
+    public static TypeCase forNumber(int value) {
+      switch (value) {
+        case 1:
+          return GCS_MANAGED_DOC_ID;
+        case 4:
+          return UNMANAGED_DOC_ID;
+        case 0:
+          return TYPE_NOT_SET;
+        default:
+          return null;
+      }
+    }
+
+    public int getNumber() {
+      return this.value;
+    }
+  };
+
+  public TypeCase getTypeCase() {
+    return TypeCase.forNumber(typeCase_);
+  }
+
+  public static final int GCS_MANAGED_DOC_ID_FIELD_NUMBER = 1;
+  /**
+   *
+   *
+   * 
+   * A document id within user-managed Cloud Storage.
+   * 

+   *
+   * .google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId gcs_managed_doc_id = 1;
+   * 
+   *
+   * @return Whether the gcsManagedDocId field is set.
+   */
+  @java.lang.Override
+  public boolean hasGcsManagedDocId() {
+    return typeCase_ == 1;
+  }
+  /**
+   *
+   *
+   * 
+   * A document id within user-managed Cloud Storage.
+   * 

+   *
+   * .google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId gcs_managed_doc_id = 1;
+   * 
+   *
+   * @return The gcsManagedDocId.
+   */
+  @java.lang.Override
+  public com.google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId getGcsManagedDocId() {
+    if (typeCase_ == 1) {
+      return (com.google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId) type_;
+    }
+    return com.google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId.getDefaultInstance();
+  }
+  /**
+   *
+   *
+   * 
+   * A document id within user-managed Cloud Storage.
+   * 

+   *
+   * .google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId gcs_managed_doc_id = 1;
+   * 
+   */
+  @java.lang.Override
+  public com.google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentIdOrBuilder
+      getGcsManagedDocIdOrBuilder() {
+    if (typeCase_ == 1) {
+      return (com.google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId) type_;
+    }
+    return com.google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId.getDefaultInstance();
+  }
+
+  public static final int UNMANAGED_DOC_ID_FIELD_NUMBER = 4;
+  /**
+   *
+   *
+   * 
+   * A document id within unmanaged dataset.
+   * 

+   *
+   * .google.cloud.documentai.v1beta3.DocumentId.UnmanagedDocumentId unmanaged_doc_id = 4;
+   * 
+   *
+   * @return Whether the unmanagedDocId field is set.
+   */
+  @java.lang.Override
+  public boolean hasUnmanagedDocId() {
+    return typeCase_ == 4;
+  }
+  /**
+   *
+   *
+   * 
+   * A document id within unmanaged dataset.
+   * 

+   *
+   * .google.cloud.documentai.v1beta3.DocumentId.UnmanagedDocumentId unmanaged_doc_id = 4;
+   * 
+   *
+   * @return The unmanagedDocId.
+   */
+  @java.lang.Override
+  public com.google.cloud.documentai.v1beta3.DocumentId.UnmanagedDocumentId getUnmanagedDocId() {
+    if (typeCase_ == 4) {
+      return (com.google.cloud.documentai.v1beta3.DocumentId.UnmanagedDocumentId) type_;
+    }
+    return com.google.cloud.documentai.v1beta3.DocumentId.UnmanagedDocumentId.getDefaultInstance();
+  }
+  /**
+   *
+   *
+   * 
+   * A document id within unmanaged dataset.
+   * 

+   *
+   * .google.cloud.documentai.v1beta3.DocumentId.UnmanagedDocumentId unmanaged_doc_id = 4;
+   * 
+   */
+  @java.lang.Override
+  public com.google.cloud.documentai.v1beta3.DocumentId.UnmanagedDocumentIdOrBuilder
+      getUnmanagedDocIdOrBuilder() {
+    if (typeCase_ == 4) {
+      return (com.google.cloud.documentai.v1beta3.DocumentId.UnmanagedDocumentId) type_;
+    }
+    return com.google.cloud.documentai.v1beta3.DocumentId.UnmanagedDocumentId.getDefaultInstance();
+  }
+
+  public static final int REVISION_REF_FIELD_NUMBER = 3;
+  private com.google.cloud.documentai.v1beta3.RevisionRef revisionRef_;
+  /**
+   *
+   *
+   * 
+   * Points to a specific revision of the document if set.
+   * 

+   *
+   * .google.cloud.documentai.v1beta3.RevisionRef revision_ref = 3;
+   *
+   * @return Whether the revisionRef field is set.
+   */
+  @java.lang.Override
+  public boolean hasRevisionRef() {
+    return revisionRef_ != null;
+  }
+  /**
+   *
+   *
+   * 
+   * Points to a specific revision of the document if set.
+   * 

+   *
+   * .google.cloud.documentai.v1beta3.RevisionRef revision_ref = 3;
+   *
+   * @return The revisionRef.
+   */
+  @java.lang.Override
+  public com.google.cloud.documentai.v1beta3.RevisionRef getRevisionRef() {
+    return revisionRef_ == null
+        ? com.google.cloud.documentai.v1beta3.RevisionRef.getDefaultInstance()
+        : revisionRef_;
+  }
+  /**
+   *
+   *
+   * 
+   * Points to a specific revision of the document if set.
+   * 

+   *
+   * .google.cloud.documentai.v1beta3.RevisionRef revision_ref = 3;
+   */
+  @java.lang.Override
+  public com.google.cloud.documentai.v1beta3.RevisionRefOrBuilder getRevisionRefOrBuilder() {
+    return revisionRef_ == null
+        ? com.google.cloud.documentai.v1beta3.RevisionRef.getDefaultInstance()
+        : revisionRef_;
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (typeCase_ == 1) {
+      output.writeMessage(
+          1, (com.google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId) type_);
+    }
+    if (revisionRef_ != null) {
+      output.writeMessage(3, getRevisionRef());
+    }
+    if (typeCase_ == 4) {
+      output.writeMessage(
+          4, (com.google.cloud.documentai.v1beta3.DocumentId.UnmanagedDocumentId) type_);
+    }
+    getUnknownFields().writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (typeCase_ == 1) {
+      size +=
+          com.google.protobuf.CodedOutputStream.computeMessageSize(
+              1, (com.google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId) type_);
+    }
+    if (revisionRef_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(3, getRevisionRef());
+    }
+    if (typeCase_ == 4) {
+      size +=
+          com.google.protobuf.CodedOutputStream.computeMessageSize(
+              4, (com.google.cloud.documentai.v1beta3.DocumentId.UnmanagedDocumentId) type_);
+    }
+    size += getUnknownFields().getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.documentai.v1beta3.DocumentId)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.documentai.v1beta3.DocumentId other =
+        (com.google.cloud.documentai.v1beta3.DocumentId) obj;
+
+    if (hasRevisionRef() != other.hasRevisionRef()) return false;
+    if (hasRevisionRef()) {
+      if (!getRevisionRef().equals(other.getRevisionRef())) return false;
+    }
+    if (!getTypeCase().equals(other.getTypeCase())) return false;
+    switch (typeCase_) {
+      case 1:
+        if (!getGcsManagedDocId().equals(other.getGcsManagedDocId())) return false;
+        break;
+      case 4:
+        if (!getUnmanagedDocId().equals(other.getUnmanagedDocId())) return false;
+        break;
+      case 0:
+      default:
+    }
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    if (hasRevisionRef()) {
+      hash = (37 * hash) + REVISION_REF_FIELD_NUMBER;
+      hash = (53 * hash) + getRevisionRef().hashCode();
+    }
+    switch (typeCase_) {
+      case 1:
+        hash = (37 * hash) + GCS_MANAGED_DOC_ID_FIELD_NUMBER;
+        hash = (53 * hash) + getGcsManagedDocId().hashCode();
+        break;
+      case 4:
+        hash = (37 * hash) + UNMANAGED_DOC_ID_FIELD_NUMBER;
+        hash = (53 * hash) + getUnmanagedDocId().hashCode();
+        break;
+      case 0:
+      default:
+    }
+    hash = (29 * hash) + getUnknownFields().hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.documentai.v1beta3.DocumentId parseFrom(java.nio.ByteBuffer data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.DocumentId parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.DocumentId parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.DocumentId parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.DocumentId parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.DocumentId parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.DocumentId parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
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+
+  public static com.google.cloud.documentai.v1beta3.DocumentId parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.DocumentId parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
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+
+  public static com.google.cloud.documentai.v1beta3.DocumentId parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
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+
+  public static com.google.cloud.documentai.v1beta3.DocumentId parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.DocumentId parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(com.google.cloud.documentai.v1beta3.DocumentId prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * 
+   * Document Identifier.
+   * 

+   *
+   * Protobuf type {@code google.cloud.documentai.v1beta3.DocumentId}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.documentai.v1beta3.DocumentId)
+      com.google.cloud.documentai.v1beta3.DocumentIdOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.documentai.v1beta3.DatasetProto
+          .internal_static_google_cloud_documentai_v1beta3_DocumentId_descriptor;
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+    @java.lang.Override
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+
+    // Construct using com.google.cloud.documentai.v1beta3.DocumentId.newBuilder()
+    private Builder() {}
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
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+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      bitField0_ = 0;
+      if (gcsManagedDocIdBuilder_ != null) {
+        gcsManagedDocIdBuilder_.clear();
+      }
+      if (unmanagedDocIdBuilder_ != null) {
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+      }
+      revisionRef_ = null;
+      if (revisionRefBuilder_ != null) {
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+        revisionRefBuilder_ = null;
+      }
+      typeCase_ = 0;
+      type_ = null;
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.documentai.v1beta3.DatasetProto
+          .internal_static_google_cloud_documentai_v1beta3_DocumentId_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta3.DocumentId getDefaultInstanceForType() {
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+
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta3.DocumentId build() {
+      com.google.cloud.documentai.v1beta3.DocumentId result = buildPartial();
+      if (!result.isInitialized()) {
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+      return result;
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+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta3.DocumentId buildPartial() {
+      com.google.cloud.documentai.v1beta3.DocumentId result =
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+
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+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.documentai.v1beta3.DocumentId) {
+        return mergeFrom((com.google.cloud.documentai.v1beta3.DocumentId) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.documentai.v1beta3.DocumentId other) {
+      if (other == com.google.cloud.documentai.v1beta3.DocumentId.getDefaultInstance()) return this;
+      if (other.hasRevisionRef()) {
+        mergeRevisionRef(other.getRevisionRef());
+      }
+      switch (other.getTypeCase()) {
+        case GCS_MANAGED_DOC_ID:
+          {
+            mergeGcsManagedDocId(other.getGcsManagedDocId());
+            break;
+          }
+        case UNMANAGED_DOC_ID:
+          {
+            mergeUnmanagedDocId(other.getUnmanagedDocId());
+            break;
+          }
+        case TYPE_NOT_SET:
+          {
+            break;
+          }
+      }
+      this.mergeUnknownFields(other.getUnknownFields());
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
+      try {
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                input.readMessage(getGcsManagedDocIdFieldBuilder().getBuilder(), extensionRegistry);
+                typeCase_ = 1;
+                break;
+              } // case 10
+            case 26:
+              {
+                input.readMessage(getRevisionRefFieldBuilder().getBuilder(), extensionRegistry);
+                bitField0_ |= 0x00000004;
+                break;
+              } // case 26
+            case 34:
+              {
+                input.readMessage(getUnmanagedDocIdFieldBuilder().getBuilder(), extensionRegistry);
+                typeCase_ = 4;
+                break;
+              } // case 34
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        throw e.unwrapIOException();
+      } finally {
+        onChanged();
+      } // finally
+      return this;
+    }
+
+    private int typeCase_ = 0;
+    private java.lang.Object type_;
+
+    public TypeCase getTypeCase() {
+      return TypeCase.forNumber(typeCase_);
+    }
+
+    public Builder clearType() {
+      typeCase_ = 0;
+      type_ = null;
+      onChanged();
+      return this;
+    }
+
+    private int bitField0_;
+
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId,
+            com.google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId.Builder,
+            com.google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentIdOrBuilder>
+        gcsManagedDocIdBuilder_;
+    /**
+     *
+     *
+     * 
+     * A document id within user-managed Cloud Storage.
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId gcs_managed_doc_id = 1;
+     * 
+     *
+     * @return Whether the gcsManagedDocId field is set.
+     */
+    @java.lang.Override
+    public boolean hasGcsManagedDocId() {
+      return typeCase_ == 1;
+    }
+    /**
+     *
+     *
+     * 
+     * A document id within user-managed Cloud Storage.
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId gcs_managed_doc_id = 1;
+     * 
+     *
+     * @return The gcsManagedDocId.
+     */
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId
+        getGcsManagedDocId() {
+      if (gcsManagedDocIdBuilder_ == null) {
+        if (typeCase_ == 1) {
+          return (com.google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId) type_;
+        }
+        return com.google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId
+            .getDefaultInstance();
+      } else {
+        if (typeCase_ == 1) {
+          return gcsManagedDocIdBuilder_.getMessage();
+        }
+        return com.google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId
+            .getDefaultInstance();
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * A document id within user-managed Cloud Storage.
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId gcs_managed_doc_id = 1;
+     * 
+     */
+    public Builder setGcsManagedDocId(
+        com.google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId value) {
+      if (gcsManagedDocIdBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        type_ = value;
+        onChanged();
+      } else {
+        gcsManagedDocIdBuilder_.setMessage(value);
+      }
+      typeCase_ = 1;
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * A document id within user-managed Cloud Storage.
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId gcs_managed_doc_id = 1;
+     * 
+     */
+    public Builder setGcsManagedDocId(
+        com.google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId.Builder
+            builderForValue) {
+      if (gcsManagedDocIdBuilder_ == null) {
+        type_ = builderForValue.build();
+        onChanged();
+      } else {
+        gcsManagedDocIdBuilder_.setMessage(builderForValue.build());
+      }
+      typeCase_ = 1;
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * A document id within user-managed Cloud Storage.
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId gcs_managed_doc_id = 1;
+     * 
+     */
+    public Builder mergeGcsManagedDocId(
+        com.google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId value) {
+      if (gcsManagedDocIdBuilder_ == null) {
+        if (typeCase_ == 1
+            && type_
+                != com.google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId
+                    .getDefaultInstance()) {
+          type_ =
+              com.google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId.newBuilder(
+                      (com.google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId) type_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          type_ = value;
+        }
+        onChanged();
+      } else {
+        if (typeCase_ == 1) {
+          gcsManagedDocIdBuilder_.mergeFrom(value);
+        } else {
+          gcsManagedDocIdBuilder_.setMessage(value);
+        }
+      }
+      typeCase_ = 1;
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * A document id within user-managed Cloud Storage.
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId gcs_managed_doc_id = 1;
+     * 
+     */
+    public Builder clearGcsManagedDocId() {
+      if (gcsManagedDocIdBuilder_ == null) {
+        if (typeCase_ == 1) {
+          typeCase_ = 0;
+          type_ = null;
+          onChanged();
+        }
+      } else {
+        if (typeCase_ == 1) {
+          typeCase_ = 0;
+          type_ = null;
+        }
+        gcsManagedDocIdBuilder_.clear();
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * A document id within user-managed Cloud Storage.
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId gcs_managed_doc_id = 1;
+     * 
+     */
+    public com.google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId.Builder
+        getGcsManagedDocIdBuilder() {
+      return getGcsManagedDocIdFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * 
+     * A document id within user-managed Cloud Storage.
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId gcs_managed_doc_id = 1;
+     * 
+     */
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentIdOrBuilder
+        getGcsManagedDocIdOrBuilder() {
+      if ((typeCase_ == 1) && (gcsManagedDocIdBuilder_ != null)) {
+        return gcsManagedDocIdBuilder_.getMessageOrBuilder();
+      } else {
+        if (typeCase_ == 1) {
+          return (com.google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId) type_;
+        }
+        return com.google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId
+            .getDefaultInstance();
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * A document id within user-managed Cloud Storage.
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId gcs_managed_doc_id = 1;
+     * 
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId,
+            com.google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId.Builder,
+            com.google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentIdOrBuilder>
+        getGcsManagedDocIdFieldBuilder() {
+      if (gcsManagedDocIdBuilder_ == null) {
+        if (!(typeCase_ == 1)) {
+          type_ =
+              com.google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId
+                  .getDefaultInstance();
+        }
+        gcsManagedDocIdBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId,
+                com.google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId.Builder,
+                com.google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentIdOrBuilder>(
+                (com.google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId) type_,
+                getParentForChildren(),
+                isClean());
+        type_ = null;
+      }
+      typeCase_ = 1;
+      onChanged();
+      return gcsManagedDocIdBuilder_;
+    }
+
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.documentai.v1beta3.DocumentId.UnmanagedDocumentId,
+            com.google.cloud.documentai.v1beta3.DocumentId.UnmanagedDocumentId.Builder,
+            com.google.cloud.documentai.v1beta3.DocumentId.UnmanagedDocumentIdOrBuilder>
+        unmanagedDocIdBuilder_;
+    /**
+     *
+     *
+     * 
+     * A document id within unmanaged dataset.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.DocumentId.UnmanagedDocumentId unmanaged_doc_id = 4;
+     * 
+     *
+     * @return Whether the unmanagedDocId field is set.
+     */
+    @java.lang.Override
+    public boolean hasUnmanagedDocId() {
+      return typeCase_ == 4;
+    }
+    /**
+     *
+     *
+     * 
+     * A document id within unmanaged dataset.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.DocumentId.UnmanagedDocumentId unmanaged_doc_id = 4;
+     * 
+     *
+     * @return The unmanagedDocId.
+     */
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta3.DocumentId.UnmanagedDocumentId getUnmanagedDocId() {
+      if (unmanagedDocIdBuilder_ == null) {
+        if (typeCase_ == 4) {
+          return (com.google.cloud.documentai.v1beta3.DocumentId.UnmanagedDocumentId) type_;
+        }
+        return com.google.cloud.documentai.v1beta3.DocumentId.UnmanagedDocumentId
+            .getDefaultInstance();
+      } else {
+        if (typeCase_ == 4) {
+          return unmanagedDocIdBuilder_.getMessage();
+        }
+        return com.google.cloud.documentai.v1beta3.DocumentId.UnmanagedDocumentId
+            .getDefaultInstance();
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * A document id within unmanaged dataset.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.DocumentId.UnmanagedDocumentId unmanaged_doc_id = 4;
+     * 
+     */
+    public Builder setUnmanagedDocId(
+        com.google.cloud.documentai.v1beta3.DocumentId.UnmanagedDocumentId value) {
+      if (unmanagedDocIdBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        type_ = value;
+        onChanged();
+      } else {
+        unmanagedDocIdBuilder_.setMessage(value);
+      }
+      typeCase_ = 4;
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * A document id within unmanaged dataset.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.DocumentId.UnmanagedDocumentId unmanaged_doc_id = 4;
+     * 
+     */
+    public Builder setUnmanagedDocId(
+        com.google.cloud.documentai.v1beta3.DocumentId.UnmanagedDocumentId.Builder
+            builderForValue) {
+      if (unmanagedDocIdBuilder_ == null) {
+        type_ = builderForValue.build();
+        onChanged();
+      } else {
+        unmanagedDocIdBuilder_.setMessage(builderForValue.build());
+      }
+      typeCase_ = 4;
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * A document id within unmanaged dataset.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.DocumentId.UnmanagedDocumentId unmanaged_doc_id = 4;
+     * 
+     */
+    public Builder mergeUnmanagedDocId(
+        com.google.cloud.documentai.v1beta3.DocumentId.UnmanagedDocumentId value) {
+      if (unmanagedDocIdBuilder_ == null) {
+        if (typeCase_ == 4
+            && type_
+                != com.google.cloud.documentai.v1beta3.DocumentId.UnmanagedDocumentId
+                    .getDefaultInstance()) {
+          type_ =
+              com.google.cloud.documentai.v1beta3.DocumentId.UnmanagedDocumentId.newBuilder(
+                      (com.google.cloud.documentai.v1beta3.DocumentId.UnmanagedDocumentId) type_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          type_ = value;
+        }
+        onChanged();
+      } else {
+        if (typeCase_ == 4) {
+          unmanagedDocIdBuilder_.mergeFrom(value);
+        } else {
+          unmanagedDocIdBuilder_.setMessage(value);
+        }
+      }
+      typeCase_ = 4;
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * A document id within unmanaged dataset.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.DocumentId.UnmanagedDocumentId unmanaged_doc_id = 4;
+     * 
+     */
+    public Builder clearUnmanagedDocId() {
+      if (unmanagedDocIdBuilder_ == null) {
+        if (typeCase_ == 4) {
+          typeCase_ = 0;
+          type_ = null;
+          onChanged();
+        }
+      } else {
+        if (typeCase_ == 4) {
+          typeCase_ = 0;
+          type_ = null;
+        }
+        unmanagedDocIdBuilder_.clear();
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * A document id within unmanaged dataset.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.DocumentId.UnmanagedDocumentId unmanaged_doc_id = 4;
+     * 
+     */
+    public com.google.cloud.documentai.v1beta3.DocumentId.UnmanagedDocumentId.Builder
+        getUnmanagedDocIdBuilder() {
+      return getUnmanagedDocIdFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * 
+     * A document id within unmanaged dataset.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.DocumentId.UnmanagedDocumentId unmanaged_doc_id = 4;
+     * 
+     */
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta3.DocumentId.UnmanagedDocumentIdOrBuilder
+        getUnmanagedDocIdOrBuilder() {
+      if ((typeCase_ == 4) && (unmanagedDocIdBuilder_ != null)) {
+        return unmanagedDocIdBuilder_.getMessageOrBuilder();
+      } else {
+        if (typeCase_ == 4) {
+          return (com.google.cloud.documentai.v1beta3.DocumentId.UnmanagedDocumentId) type_;
+        }
+        return com.google.cloud.documentai.v1beta3.DocumentId.UnmanagedDocumentId
+            .getDefaultInstance();
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * A document id within unmanaged dataset.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.DocumentId.UnmanagedDocumentId unmanaged_doc_id = 4;
+     * 
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.documentai.v1beta3.DocumentId.UnmanagedDocumentId,
+            com.google.cloud.documentai.v1beta3.DocumentId.UnmanagedDocumentId.Builder,
+            com.google.cloud.documentai.v1beta3.DocumentId.UnmanagedDocumentIdOrBuilder>
+        getUnmanagedDocIdFieldBuilder() {
+      if (unmanagedDocIdBuilder_ == null) {
+        if (!(typeCase_ == 4)) {
+          type_ =
+              com.google.cloud.documentai.v1beta3.DocumentId.UnmanagedDocumentId
+                  .getDefaultInstance();
+        }
+        unmanagedDocIdBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.documentai.v1beta3.DocumentId.UnmanagedDocumentId,
+                com.google.cloud.documentai.v1beta3.DocumentId.UnmanagedDocumentId.Builder,
+                com.google.cloud.documentai.v1beta3.DocumentId.UnmanagedDocumentIdOrBuilder>(
+                (com.google.cloud.documentai.v1beta3.DocumentId.UnmanagedDocumentId) type_,
+                getParentForChildren(),
+                isClean());
+        type_ = null;
+      }
+      typeCase_ = 4;
+      onChanged();
+      return unmanagedDocIdBuilder_;
+    }
+
+    private com.google.cloud.documentai.v1beta3.RevisionRef revisionRef_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.documentai.v1beta3.RevisionRef,
+            com.google.cloud.documentai.v1beta3.RevisionRef.Builder,
+            com.google.cloud.documentai.v1beta3.RevisionRefOrBuilder>
+        revisionRefBuilder_;
+    /**
+     *
+     *
+     * 
+     * Points to a specific revision of the document if set.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.RevisionRef revision_ref = 3;
+     *
+     * @return Whether the revisionRef field is set.
+     */
+    public boolean hasRevisionRef() {
+      return ((bitField0_ & 0x00000004) != 0);
+    }
+    /**
+     *
+     *
+     * 
+     * Points to a specific revision of the document if set.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.RevisionRef revision_ref = 3;
+     *
+     * @return The revisionRef.
+     */
+    public com.google.cloud.documentai.v1beta3.RevisionRef getRevisionRef() {
+      if (revisionRefBuilder_ == null) {
+        return revisionRef_ == null
+            ? com.google.cloud.documentai.v1beta3.RevisionRef.getDefaultInstance()
+            : revisionRef_;
+      } else {
+        return revisionRefBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Points to a specific revision of the document if set.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.RevisionRef revision_ref = 3;
+     */
+    public Builder setRevisionRef(com.google.cloud.documentai.v1beta3.RevisionRef value) {
+      if (revisionRefBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        revisionRef_ = value;
+      } else {
+        revisionRefBuilder_.setMessage(value);
+      }
+      bitField0_ |= 0x00000004;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Points to a specific revision of the document if set.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.RevisionRef revision_ref = 3;
+     */
+    public Builder setRevisionRef(
+        com.google.cloud.documentai.v1beta3.RevisionRef.Builder builderForValue) {
+      if (revisionRefBuilder_ == null) {
+        revisionRef_ = builderForValue.build();
+      } else {
+        revisionRefBuilder_.setMessage(builderForValue.build());
+      }
+      bitField0_ |= 0x00000004;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Points to a specific revision of the document if set.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.RevisionRef revision_ref = 3;
+     */
+    public Builder mergeRevisionRef(com.google.cloud.documentai.v1beta3.RevisionRef value) {
+      if (revisionRefBuilder_ == null) {
+        if (((bitField0_ & 0x00000004) != 0)
+            && revisionRef_ != null
+            && revisionRef_
+                != com.google.cloud.documentai.v1beta3.RevisionRef.getDefaultInstance()) {
+          getRevisionRefBuilder().mergeFrom(value);
+        } else {
+          revisionRef_ = value;
+        }
+      } else {
+        revisionRefBuilder_.mergeFrom(value);
+      }
+      bitField0_ |= 0x00000004;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Points to a specific revision of the document if set.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.RevisionRef revision_ref = 3;
+     */
+    public Builder clearRevisionRef() {
+      bitField0_ = (bitField0_ & ~0x00000004);
+      revisionRef_ = null;
+      if (revisionRefBuilder_ != null) {
+        revisionRefBuilder_.dispose();
+        revisionRefBuilder_ = null;
+      }
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Points to a specific revision of the document if set.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.RevisionRef revision_ref = 3;
+     */
+    public com.google.cloud.documentai.v1beta3.RevisionRef.Builder getRevisionRefBuilder() {
+      bitField0_ |= 0x00000004;
+      onChanged();
+      return getRevisionRefFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * 
+     * Points to a specific revision of the document if set.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.RevisionRef revision_ref = 3;
+     */
+    public com.google.cloud.documentai.v1beta3.RevisionRefOrBuilder getRevisionRefOrBuilder() {
+      if (revisionRefBuilder_ != null) {
+        return revisionRefBuilder_.getMessageOrBuilder();
+      } else {
+        return revisionRef_ == null
+            ? com.google.cloud.documentai.v1beta3.RevisionRef.getDefaultInstance()
+            : revisionRef_;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Points to a specific revision of the document if set.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.RevisionRef revision_ref = 3;
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.documentai.v1beta3.RevisionRef,
+            com.google.cloud.documentai.v1beta3.RevisionRef.Builder,
+            com.google.cloud.documentai.v1beta3.RevisionRefOrBuilder>
+        getRevisionRefFieldBuilder() {
+      if (revisionRefBuilder_ == null) {
+        revisionRefBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.documentai.v1beta3.RevisionRef,
+                com.google.cloud.documentai.v1beta3.RevisionRef.Builder,
+                com.google.cloud.documentai.v1beta3.RevisionRefOrBuilder>(
+                getRevisionRef(), getParentForChildren(), isClean());
+        revisionRef_ = null;
+      }
+      return revisionRefBuilder_;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.documentai.v1beta3.DocumentId)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.documentai.v1beta3.DocumentId)
+  private static final com.google.cloud.documentai.v1beta3.DocumentId DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.documentai.v1beta3.DocumentId();
+  }
+
+  public static com.google.cloud.documentai.v1beta3.DocumentId getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser PARSER =
+      new com.google.protobuf.AbstractParser() {
+        @java.lang.Override
+        public DocumentId parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
+        }
+      };
+
+  public static com.google.protobuf.Parser parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.documentai.v1beta3.DocumentId getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/DocumentIdOrBuilder.java b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/DocumentIdOrBuilder.java
new file mode 100644
index 000000000000..9a2cb96fbf8b
--- /dev/null
+++ b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/DocumentIdOrBuilder.java
@@ -0,0 +1,140 @@
+/*
+ * Copyright 2023 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/documentai/v1beta3/dataset.proto
+
+package com.google.cloud.documentai.v1beta3;
+
+public interface DocumentIdOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.documentai.v1beta3.DocumentId)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * 
+   * A document id within user-managed Cloud Storage.
+   * 

+   *
+   * .google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId gcs_managed_doc_id = 1;
+   * 
+   *
+   * @return Whether the gcsManagedDocId field is set.
+   */
+  boolean hasGcsManagedDocId();
+  /**
+   *
+   *
+   * 
+   * A document id within user-managed Cloud Storage.
+   * 

+   *
+   * .google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId gcs_managed_doc_id = 1;
+   * 
+   *
+   * @return The gcsManagedDocId.
+   */
+  com.google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId getGcsManagedDocId();
+  /**
+   *
+   *
+   * 
+   * A document id within user-managed Cloud Storage.
+   * 

+   *
+   * .google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentId gcs_managed_doc_id = 1;
+   * 
+   */
+  com.google.cloud.documentai.v1beta3.DocumentId.GCSManagedDocumentIdOrBuilder
+      getGcsManagedDocIdOrBuilder();
+
+  /**
+   *
+   *
+   * 
+   * A document id within unmanaged dataset.
+   * 

+   *
+   * .google.cloud.documentai.v1beta3.DocumentId.UnmanagedDocumentId unmanaged_doc_id = 4;
+   * 
+   *
+   * @return Whether the unmanagedDocId field is set.
+   */
+  boolean hasUnmanagedDocId();
+  /**
+   *
+   *
+   * 
+   * A document id within unmanaged dataset.
+   * 

+   *
+   * .google.cloud.documentai.v1beta3.DocumentId.UnmanagedDocumentId unmanaged_doc_id = 4;
+   * 
+   *
+   * @return The unmanagedDocId.
+   */
+  com.google.cloud.documentai.v1beta3.DocumentId.UnmanagedDocumentId getUnmanagedDocId();
+  /**
+   *
+   *
+   * 
+   * A document id within unmanaged dataset.
+   * 

+   *
+   * .google.cloud.documentai.v1beta3.DocumentId.UnmanagedDocumentId unmanaged_doc_id = 4;
+   * 
+   */
+  com.google.cloud.documentai.v1beta3.DocumentId.UnmanagedDocumentIdOrBuilder
+      getUnmanagedDocIdOrBuilder();
+
+  /**
+   *
+   *
+   * 
+   * Points to a specific revision of the document if set.
+   * 

+   *
+   * .google.cloud.documentai.v1beta3.RevisionRef revision_ref = 3;
+   *
+   * @return Whether the revisionRef field is set.
+   */
+  boolean hasRevisionRef();
+  /**
+   *
+   *
+   * 
+   * Points to a specific revision of the document if set.
+   * 

+   *
+   * .google.cloud.documentai.v1beta3.RevisionRef revision_ref = 3;
+   *
+   * @return The revisionRef.
+   */
+  com.google.cloud.documentai.v1beta3.RevisionRef getRevisionRef();
+  /**
+   *
+   *
+   * 
+   * Points to a specific revision of the document if set.
+   * 

+   *
+   * .google.cloud.documentai.v1beta3.RevisionRef revision_ref = 3;
+   */
+  com.google.cloud.documentai.v1beta3.RevisionRefOrBuilder getRevisionRefOrBuilder();
+
+  com.google.cloud.documentai.v1beta3.DocumentId.TypeCase getTypeCase();
+}
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/DocumentPageRange.java b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/DocumentPageRange.java
new file mode 100644
index 000000000000..8bf848d586f7
--- /dev/null
+++ b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/DocumentPageRange.java
@@ -0,0 +1,628 @@
+/*
+ * Copyright 2023 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/documentai/v1beta3/document_service.proto
+
+package com.google.cloud.documentai.v1beta3;
+
+/**
+ *
+ *
+ * 
+ * Range of pages present in a document.
+ * 

+ *
+ * Protobuf type {@code google.cloud.documentai.v1beta3.DocumentPageRange}
+ */
+public final class DocumentPageRange extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.documentai.v1beta3.DocumentPageRange)
+    DocumentPageRangeOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use DocumentPageRange.newBuilder() to construct.
+  private DocumentPageRange(com.google.protobuf.GeneratedMessageV3.Builder builder) {
+    super(builder);
+  }
+
+  private DocumentPageRange() {}
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new DocumentPageRange();
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.documentai.v1beta3.DocumentAiDocumentService
+        .internal_static_google_cloud_documentai_v1beta3_DocumentPageRange_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.documentai.v1beta3.DocumentAiDocumentService
+        .internal_static_google_cloud_documentai_v1beta3_DocumentPageRange_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.documentai.v1beta3.DocumentPageRange.class,
+            com.google.cloud.documentai.v1beta3.DocumentPageRange.Builder.class);
+  }
+
+  public static final int START_FIELD_NUMBER = 1;
+  private int start_ = 0;
+  /**
+   *
+   *
+   * 
+   * First page number (one-based index) to be returned.
+   * 

+   *
+   * int32 start = 1;
+   *
+   * @return The start.
+   */
+  @java.lang.Override
+  public int getStart() {
+    return start_;
+  }
+
+  public static final int END_FIELD_NUMBER = 2;
+  private int end_ = 0;
+  /**
+   *
+   *
+   * 
+   * Last page number (one-based index) to be returned.
+   * 

+   *
+   * int32 end = 2;
+   *
+   * @return The end.
+   */
+  @java.lang.Override
+  public int getEnd() {
+    return end_;
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (start_ != 0) {
+      output.writeInt32(1, start_);
+    }
+    if (end_ != 0) {
+      output.writeInt32(2, end_);
+    }
+    getUnknownFields().writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (start_ != 0) {
+      size += com.google.protobuf.CodedOutputStream.computeInt32Size(1, start_);
+    }
+    if (end_ != 0) {
+      size += com.google.protobuf.CodedOutputStream.computeInt32Size(2, end_);
+    }
+    size += getUnknownFields().getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.documentai.v1beta3.DocumentPageRange)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.documentai.v1beta3.DocumentPageRange other =
+        (com.google.cloud.documentai.v1beta3.DocumentPageRange) obj;
+
+    if (getStart() != other.getStart()) return false;
+    if (getEnd() != other.getEnd()) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + START_FIELD_NUMBER;
+    hash = (53 * hash) + getStart();
+    hash = (37 * hash) + END_FIELD_NUMBER;
+    hash = (53 * hash) + getEnd();
+    hash = (29 * hash) + getUnknownFields().hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.documentai.v1beta3.DocumentPageRange parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.DocumentPageRange parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.DocumentPageRange parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.DocumentPageRange parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.DocumentPageRange parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.DocumentPageRange parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.DocumentPageRange parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.DocumentPageRange parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.DocumentPageRange parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.DocumentPageRange parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.DocumentPageRange parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.DocumentPageRange parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.documentai.v1beta3.DocumentPageRange prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * 
+   * Range of pages present in a document.
+   * 

+   *
+   * Protobuf type {@code google.cloud.documentai.v1beta3.DocumentPageRange}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.documentai.v1beta3.DocumentPageRange)
+      com.google.cloud.documentai.v1beta3.DocumentPageRangeOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.documentai.v1beta3.DocumentAiDocumentService
+          .internal_static_google_cloud_documentai_v1beta3_DocumentPageRange_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.documentai.v1beta3.DocumentAiDocumentService
+          .internal_static_google_cloud_documentai_v1beta3_DocumentPageRange_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.documentai.v1beta3.DocumentPageRange.class,
+              com.google.cloud.documentai.v1beta3.DocumentPageRange.Builder.class);
+    }
+
+    // Construct using com.google.cloud.documentai.v1beta3.DocumentPageRange.newBuilder()
+    private Builder() {}
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      bitField0_ = 0;
+      start_ = 0;
+      end_ = 0;
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.documentai.v1beta3.DocumentAiDocumentService
+          .internal_static_google_cloud_documentai_v1beta3_DocumentPageRange_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta3.DocumentPageRange getDefaultInstanceForType() {
+      return com.google.cloud.documentai.v1beta3.DocumentPageRange.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta3.DocumentPageRange build() {
+      com.google.cloud.documentai.v1beta3.DocumentPageRange result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta3.DocumentPageRange buildPartial() {
+      com.google.cloud.documentai.v1beta3.DocumentPageRange result =
+          new com.google.cloud.documentai.v1beta3.DocumentPageRange(this);
+      if (bitField0_ != 0) {
+        buildPartial0(result);
+      }
+      onBuilt();
+      return result;
+    }
+
+    private void buildPartial0(com.google.cloud.documentai.v1beta3.DocumentPageRange result) {
+      int from_bitField0_ = bitField0_;
+      if (((from_bitField0_ & 0x00000001) != 0)) {
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+      }
+      if (((from_bitField0_ & 0x00000002) != 0)) {
+        result.end_ = end_;
+      }
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.documentai.v1beta3.DocumentPageRange) {
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+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.documentai.v1beta3.DocumentPageRange other) {
+      if (other == com.google.cloud.documentai.v1beta3.DocumentPageRange.getDefaultInstance())
+        return this;
+      if (other.getStart() != 0) {
+        setStart(other.getStart());
+      }
+      if (other.getEnd() != 0) {
+        setEnd(other.getEnd());
+      }
+      this.mergeUnknownFields(other.getUnknownFields());
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
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+        while (!done) {
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+                bitField0_ |= 0x00000001;
+                break;
+              } // case 8
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+                  done = true; // was an endgroup tag
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+              } // default:
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+        } // while (!done)
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        throw e.unwrapIOException();
+      } finally {
+        onChanged();
+      } // finally
+      return this;
+    }
+
+    private int bitField0_;
+
+    private int start_;
+    /**
+     *
+     *
+     * 
+     * First page number (one-based index) to be returned.
+     * 

+     *
+     * int32 start = 1;
+     *
+     * @return The start.
+     */
+    @java.lang.Override
+    public int getStart() {
+      return start_;
+    }
+    /**
+     *
+     *
+     * 
+     * First page number (one-based index) to be returned.
+     * 

+     *
+     * int32 start = 1;
+     *
+     * @param value The start to set.
+     * @return This builder for chaining.
+     */
+    public Builder setStart(int value) {
+
+      start_ = value;
+      bitField0_ |= 0x00000001;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * First page number (one-based index) to be returned.
+     * 

+     *
+     * int32 start = 1;
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearStart() {
+      bitField0_ = (bitField0_ & ~0x00000001);
+      start_ = 0;
+      onChanged();
+      return this;
+    }
+
+    private int end_;
+    /**
+     *
+     *
+     * 
+     * Last page number (one-based index) to be returned.
+     * 

+     *
+     * int32 end = 2;
+     *
+     * @return The end.
+     */
+    @java.lang.Override
+    public int getEnd() {
+      return end_;
+    }
+    /**
+     *
+     *
+     * 
+     * Last page number (one-based index) to be returned.
+     * 

+     *
+     * int32 end = 2;
+     *
+     * @param value The end to set.
+     * @return This builder for chaining.
+     */
+    public Builder setEnd(int value) {
+
+      end_ = value;
+      bitField0_ |= 0x00000002;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Last page number (one-based index) to be returned.
+     * 

+     *
+     * int32 end = 2;
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearEnd() {
+      bitField0_ = (bitField0_ & ~0x00000002);
+      end_ = 0;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.documentai.v1beta3.DocumentPageRange)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.documentai.v1beta3.DocumentPageRange)
+  private static final com.google.cloud.documentai.v1beta3.DocumentPageRange DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.documentai.v1beta3.DocumentPageRange();
+  }
+
+  public static com.google.cloud.documentai.v1beta3.DocumentPageRange getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser PARSER =
+      new com.google.protobuf.AbstractParser() {
+        @java.lang.Override
+        public DocumentPageRange parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
+        }
+      };
+
+  public static com.google.protobuf.Parser parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.documentai.v1beta3.DocumentPageRange getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/DocumentPageRangeOrBuilder.java b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/DocumentPageRangeOrBuilder.java
new file mode 100644
index 000000000000..af56344f31ca
--- /dev/null
+++ b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/DocumentPageRangeOrBuilder.java
@@ -0,0 +1,51 @@
+/*
+ * Copyright 2023 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/documentai/v1beta3/document_service.proto
+
+package com.google.cloud.documentai.v1beta3;
+
+public interface DocumentPageRangeOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.documentai.v1beta3.DocumentPageRange)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * 
+   * First page number (one-based index) to be returned.
+   * 

+   *
+   * int32 start = 1;
+   *
+   * @return The start.
+   */
+  int getStart();
+
+  /**
+   *
+   *
+   * 
+   * Last page number (one-based index) to be returned.
+   * 

+   *
+   * int32 end = 2;
+   *
+   * @return The end.
+   */
+  int getEnd();
+}
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/DocumentProto.java b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/DocumentProto.java
index 48925cd037c3..3547304e10fa 100644
--- a/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/DocumentProto.java
+++ b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/DocumentProto.java
@@ -175,6 +175,10 @@ public static void registerAllExtensions(com.google.protobuf.ExtensionRegistry r
       internal_static_google_cloud_documentai_v1beta3_Document_TextChange_descriptor;
   static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
       internal_static_google_cloud_documentai_v1beta3_Document_TextChange_fieldAccessorTable;
+  static final com.google.protobuf.Descriptors.Descriptor
+      internal_static_google_cloud_documentai_v1beta3_RevisionRef_descriptor;
+  static final com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internal_static_google_cloud_documentai_v1beta3_RevisionRef_fieldAccessorTable;
 
   public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
     return descriptor;
@@ -425,13 +429,20 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
           + ".Document.TextAnchor\022\024\n\014changed_text\030\002 \001"
           + "(\t\022L\n\nprovenance\030\003 \003(\01324.google.cloud.do"
           + "cumentai.v1beta3.Document.ProvenanceB\002\030\001"
-          + "B\010\n\006sourceB\344\001\n#com.google.cloud.document"
-          + "ai.v1beta3B\rDocumentProtoP\001ZCcloud.googl"
-          + "e.com/go/documentai/apiv1beta3/documenta"
-          + "ipb;documentaipb\252\002\037Google.Cloud.Document"
-          + "AI.V1Beta3\312\002\037Google\\Cloud\\DocumentAI\\V1b"
-          + "eta3\352\002\"Google::Cloud::DocumentAI::V1beta"
-          + "3b\006proto3"
+          + "B\010\n\006source\"\233\002\n\013RevisionRef\022R\n\rrevision_c"
+          + "ase\030\001 \001(\01629.google.cloud.documentai.v1be"
+          + "ta3.RevisionRef.RevisionCaseH\000\022\025\n\013revisi"
+          + "on_id\030\002 \001(\tH\000\022\"\n\030latest_processor_versio"
+          + "n\030\003 \001(\tH\000\"s\n\014RevisionCase\022\035\n\031REVISION_CA"
+          + "SE_UNSPECIFIED\020\000\022\027\n\023LATEST_HUMAN_REVIEW\020"
+          + "\001\022\024\n\020LATEST_TIMESTAMP\020\002\022\025\n\021BASE_OCR_REVI"
+          + "SION\020\003B\010\n\006sourceB\344\001\n#com.google.cloud.do"
+          + "cumentai.v1beta3B\rDocumentProtoP\001ZCcloud"
+          + ".google.com/go/documentai/apiv1beta3/doc"
+          + "umentaipb;documentaipb\252\002\037Google.Cloud.Do"
+          + "cumentAI.V1Beta3\312\002\037Google\\Cloud\\Document"
+          + "AI\\V1beta3\352\002\"Google::Cloud::DocumentAI::"
+          + "V1beta3b\006proto3"
     };
     descriptor =
         com.google.protobuf.Descriptors.FileDescriptor.internalBuildGeneratedFileFrom(
@@ -877,6 +888,14 @@ public static com.google.protobuf.Descriptors.FileDescriptor getDescriptor() {
             new java.lang.String[] {
               "TextAnchor", "ChangedText", "Provenance",
             });
+    internal_static_google_cloud_documentai_v1beta3_RevisionRef_descriptor =
+        getDescriptor().getMessageTypes().get(1);
+    internal_static_google_cloud_documentai_v1beta3_RevisionRef_fieldAccessorTable =
+        new com.google.protobuf.GeneratedMessageV3.FieldAccessorTable(
+            internal_static_google_cloud_documentai_v1beta3_RevisionRef_descriptor,
+            new java.lang.String[] {
+              "RevisionCase", "RevisionId", "LatestProcessorVersion", "Source",
+            });
     com.google.protobuf.ExtensionRegistry registry =
         com.google.protobuf.ExtensionRegistry.newInstance();
     registry.add(com.google.api.FieldBehaviorProto.fieldBehavior);
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/GetDocumentRequest.java b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/GetDocumentRequest.java
new file mode 100644
index 000000000000..7240fd6875c6
--- /dev/null
+++ b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/GetDocumentRequest.java
@@ -0,0 +1,1472 @@
+/*
+ * Copyright 2023 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/documentai/v1beta3/document_service.proto
+
+package com.google.cloud.documentai.v1beta3;
+
+/** Protobuf type {@code google.cloud.documentai.v1beta3.GetDocumentRequest} */
+public final class GetDocumentRequest extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.documentai.v1beta3.GetDocumentRequest)
+    GetDocumentRequestOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use GetDocumentRequest.newBuilder() to construct.
+  private GetDocumentRequest(com.google.protobuf.GeneratedMessageV3.Builder builder) {
+    super(builder);
+  }
+
+  private GetDocumentRequest() {
+    dataset_ = "";
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new GetDocumentRequest();
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.documentai.v1beta3.DocumentAiDocumentService
+        .internal_static_google_cloud_documentai_v1beta3_GetDocumentRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.documentai.v1beta3.DocumentAiDocumentService
+        .internal_static_google_cloud_documentai_v1beta3_GetDocumentRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.documentai.v1beta3.GetDocumentRequest.class,
+            com.google.cloud.documentai.v1beta3.GetDocumentRequest.Builder.class);
+  }
+
+  public static final int DATASET_FIELD_NUMBER = 1;
+
+  @SuppressWarnings("serial")
+  private volatile java.lang.Object dataset_ = "";
+  /**
+   *
+   *
+   * 
+   * Required. The resource name of the dataset that the document belongs to .
+   * Format:
+   * projects/{project}/locations/{location}/processors/{processor}/dataset
+   * 

+   *
+   * 
+   * string dataset = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * 
+   *
+   * @return The dataset.
+   */
+  @java.lang.Override
+  public java.lang.String getDataset() {
+    java.lang.Object ref = dataset_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      dataset_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * 
+   * Required. The resource name of the dataset that the document belongs to .
+   * Format:
+   * projects/{project}/locations/{location}/processors/{processor}/dataset
+   * 

+   *
+   * 
+   * string dataset = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * 
+   *
+   * @return The bytes for dataset.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getDatasetBytes() {
+    java.lang.Object ref = dataset_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      dataset_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int DOCUMENT_ID_FIELD_NUMBER = 2;
+  private com.google.cloud.documentai.v1beta3.DocumentId documentId_;
+  /**
+   *
+   *
+   * 
+   * Required. Document identifier.
+   * 

+   *
+   * 
+   * .google.cloud.documentai.v1beta3.DocumentId document_id = 2 [(.google.api.field_behavior) = REQUIRED];
+   * 
+   *
+   * @return Whether the documentId field is set.
+   */
+  @java.lang.Override
+  public boolean hasDocumentId() {
+    return documentId_ != null;
+  }
+  /**
+   *
+   *
+   * 
+   * Required. Document identifier.
+   * 

+   *
+   * 
+   * .google.cloud.documentai.v1beta3.DocumentId document_id = 2 [(.google.api.field_behavior) = REQUIRED];
+   * 
+   *
+   * @return The documentId.
+   */
+  @java.lang.Override
+  public com.google.cloud.documentai.v1beta3.DocumentId getDocumentId() {
+    return documentId_ == null
+        ? com.google.cloud.documentai.v1beta3.DocumentId.getDefaultInstance()
+        : documentId_;
+  }
+  /**
+   *
+   *
+   * 
+   * Required. Document identifier.
+   * 

+   *
+   * 
+   * .google.cloud.documentai.v1beta3.DocumentId document_id = 2 [(.google.api.field_behavior) = REQUIRED];
+   * 
+   */
+  @java.lang.Override
+  public com.google.cloud.documentai.v1beta3.DocumentIdOrBuilder getDocumentIdOrBuilder() {
+    return documentId_ == null
+        ? com.google.cloud.documentai.v1beta3.DocumentId.getDefaultInstance()
+        : documentId_;
+  }
+
+  public static final int READ_MASK_FIELD_NUMBER = 3;
+  private com.google.protobuf.FieldMask readMask_;
+  /**
+   *
+   *
+   * 
+   * If set, only fields listed here will be returned. Otherwise, all fields
+   * will be returned by default.
+   * 

+   *
+   * .google.protobuf.FieldMask read_mask = 3;
+   *
+   * @return Whether the readMask field is set.
+   */
+  @java.lang.Override
+  public boolean hasReadMask() {
+    return readMask_ != null;
+  }
+  /**
+   *
+   *
+   * 
+   * If set, only fields listed here will be returned. Otherwise, all fields
+   * will be returned by default.
+   * 

+   *
+   * .google.protobuf.FieldMask read_mask = 3;
+   *
+   * @return The readMask.
+   */
+  @java.lang.Override
+  public com.google.protobuf.FieldMask getReadMask() {
+    return readMask_ == null ? com.google.protobuf.FieldMask.getDefaultInstance() : readMask_;
+  }
+  /**
+   *
+   *
+   * 
+   * If set, only fields listed here will be returned. Otherwise, all fields
+   * will be returned by default.
+   * 

+   *
+   * .google.protobuf.FieldMask read_mask = 3;
+   */
+  @java.lang.Override
+  public com.google.protobuf.FieldMaskOrBuilder getReadMaskOrBuilder() {
+    return readMask_ == null ? com.google.protobuf.FieldMask.getDefaultInstance() : readMask_;
+  }
+
+  public static final int PAGE_RANGE_FIELD_NUMBER = 4;
+  private com.google.cloud.documentai.v1beta3.DocumentPageRange pageRange_;
+  /**
+   *
+   *
+   * 
+   * List of pages for which the fields specified in the `read_mask` must
+   * be served.
+   * 

+   *
+   * .google.cloud.documentai.v1beta3.DocumentPageRange page_range = 4;
+   *
+   * @return Whether the pageRange field is set.
+   */
+  @java.lang.Override
+  public boolean hasPageRange() {
+    return pageRange_ != null;
+  }
+  /**
+   *
+   *
+   * 
+   * List of pages for which the fields specified in the `read_mask` must
+   * be served.
+   * 

+   *
+   * .google.cloud.documentai.v1beta3.DocumentPageRange page_range = 4;
+   *
+   * @return The pageRange.
+   */
+  @java.lang.Override
+  public com.google.cloud.documentai.v1beta3.DocumentPageRange getPageRange() {
+    return pageRange_ == null
+        ? com.google.cloud.documentai.v1beta3.DocumentPageRange.getDefaultInstance()
+        : pageRange_;
+  }
+  /**
+   *
+   *
+   * 
+   * List of pages for which the fields specified in the `read_mask` must
+   * be served.
+   * 

+   *
+   * .google.cloud.documentai.v1beta3.DocumentPageRange page_range = 4;
+   */
+  @java.lang.Override
+  public com.google.cloud.documentai.v1beta3.DocumentPageRangeOrBuilder getPageRangeOrBuilder() {
+    return pageRange_ == null
+        ? com.google.cloud.documentai.v1beta3.DocumentPageRange.getDefaultInstance()
+        : pageRange_;
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(dataset_)) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, dataset_);
+    }
+    if (documentId_ != null) {
+      output.writeMessage(2, getDocumentId());
+    }
+    if (readMask_ != null) {
+      output.writeMessage(3, getReadMask());
+    }
+    if (pageRange_ != null) {
+      output.writeMessage(4, getPageRange());
+    }
+    getUnknownFields().writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(dataset_)) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, dataset_);
+    }
+    if (documentId_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(2, getDocumentId());
+    }
+    if (readMask_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(3, getReadMask());
+    }
+    if (pageRange_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(4, getPageRange());
+    }
+    size += getUnknownFields().getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.documentai.v1beta3.GetDocumentRequest)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.documentai.v1beta3.GetDocumentRequest other =
+        (com.google.cloud.documentai.v1beta3.GetDocumentRequest) obj;
+
+    if (!getDataset().equals(other.getDataset())) return false;
+    if (hasDocumentId() != other.hasDocumentId()) return false;
+    if (hasDocumentId()) {
+      if (!getDocumentId().equals(other.getDocumentId())) return false;
+    }
+    if (hasReadMask() != other.hasReadMask()) return false;
+    if (hasReadMask()) {
+      if (!getReadMask().equals(other.getReadMask())) return false;
+    }
+    if (hasPageRange() != other.hasPageRange()) return false;
+    if (hasPageRange()) {
+      if (!getPageRange().equals(other.getPageRange())) return false;
+    }
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + DATASET_FIELD_NUMBER;
+    hash = (53 * hash) + getDataset().hashCode();
+    if (hasDocumentId()) {
+      hash = (37 * hash) + DOCUMENT_ID_FIELD_NUMBER;
+      hash = (53 * hash) + getDocumentId().hashCode();
+    }
+    if (hasReadMask()) {
+      hash = (37 * hash) + READ_MASK_FIELD_NUMBER;
+      hash = (53 * hash) + getReadMask().hashCode();
+    }
+    if (hasPageRange()) {
+      hash = (37 * hash) + PAGE_RANGE_FIELD_NUMBER;
+      hash = (53 * hash) + getPageRange().hashCode();
+    }
+    hash = (29 * hash) + getUnknownFields().hashCode();
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+    return PARSER.parseFrom(data, extensionRegistry);
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+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
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+  public Builder newBuilderForType() {
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+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.documentai.v1beta3.GetDocumentRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /** Protobuf type {@code google.cloud.documentai.v1beta3.GetDocumentRequest} */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder
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+      // @@protoc_insertion_point(builder_implements:google.cloud.documentai.v1beta3.GetDocumentRequest)
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+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.documentai.v1beta3.DocumentAiDocumentService
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+    private Builder() {}
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+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
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+    public Builder clear() {
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+      dataset_ = "";
+      documentId_ = null;
+      if (documentIdBuilder_ != null) {
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+      readMask_ = null;
+      if (readMaskBuilder_ != null) {
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+        readMaskBuilder_ = null;
+      }
+      pageRange_ = null;
+      if (pageRangeBuilder_ != null) {
+        pageRangeBuilder_.dispose();
+        pageRangeBuilder_ = null;
+      }
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.documentai.v1beta3.DocumentAiDocumentService
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+    }
+
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta3.GetDocumentRequest getDefaultInstanceForType() {
+      return com.google.cloud.documentai.v1beta3.GetDocumentRequest.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta3.GetDocumentRequest build() {
+      com.google.cloud.documentai.v1beta3.GetDocumentRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta3.GetDocumentRequest buildPartial() {
+      com.google.cloud.documentai.v1beta3.GetDocumentRequest result =
+          new com.google.cloud.documentai.v1beta3.GetDocumentRequest(this);
+      if (bitField0_ != 0) {
+        buildPartial0(result);
+      }
+      onBuilt();
+      return result;
+    }
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+      int from_bitField0_ = bitField0_;
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+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.documentai.v1beta3.GetDocumentRequest) {
+        return mergeFrom((com.google.cloud.documentai.v1beta3.GetDocumentRequest) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.documentai.v1beta3.GetDocumentRequest other) {
+      if (other == com.google.cloud.documentai.v1beta3.GetDocumentRequest.getDefaultInstance())
+        return this;
+      if (!other.getDataset().isEmpty()) {
+        dataset_ = other.dataset_;
+        bitField0_ |= 0x00000001;
+        onChanged();
+      }
+      if (other.hasDocumentId()) {
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+      if (other.hasReadMask()) {
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+      if (other.hasPageRange()) {
+        mergePageRange(other.getPageRange());
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+      this.mergeUnknownFields(other.getUnknownFields());
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
+      try {
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                dataset_ = input.readStringRequireUtf8();
+                bitField0_ |= 0x00000001;
+                break;
+              } // case 10
+            case 18:
+              {
+                input.readMessage(getDocumentIdFieldBuilder().getBuilder(), extensionRegistry);
+                bitField0_ |= 0x00000002;
+                break;
+              } // case 18
+            case 26:
+              {
+                input.readMessage(getReadMaskFieldBuilder().getBuilder(), extensionRegistry);
+                bitField0_ |= 0x00000004;
+                break;
+              } // case 26
+            case 34:
+              {
+                input.readMessage(getPageRangeFieldBuilder().getBuilder(), extensionRegistry);
+                bitField0_ |= 0x00000008;
+                break;
+              } // case 34
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
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+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        throw e.unwrapIOException();
+      } finally {
+        onChanged();
+      } // finally
+      return this;
+    }
+
+    private int bitField0_;
+
+    private java.lang.Object dataset_ = "";
+    /**
+     *
+     *
+     * 
+     * Required. The resource name of the dataset that the document belongs to .
+     * Format:
+     * projects/{project}/locations/{location}/processors/{processor}/dataset
+     * 

+     *
+     * 
+     * string dataset = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * 
+     *
+     * @return The dataset.
+     */
+    public java.lang.String getDataset() {
+      java.lang.Object ref = dataset_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        dataset_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The resource name of the dataset that the document belongs to .
+     * Format:
+     * projects/{project}/locations/{location}/processors/{processor}/dataset
+     * 

+     *
+     * 
+     * string dataset = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * 
+     *
+     * @return The bytes for dataset.
+     */
+    public com.google.protobuf.ByteString getDatasetBytes() {
+      java.lang.Object ref = dataset_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        dataset_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The resource name of the dataset that the document belongs to .
+     * Format:
+     * projects/{project}/locations/{location}/processors/{processor}/dataset
+     * 

+     *
+     * 
+     * string dataset = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * 
+     *
+     * @param value The dataset to set.
+     * @return This builder for chaining.
+     */
+    public Builder setDataset(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      dataset_ = value;
+      bitField0_ |= 0x00000001;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The resource name of the dataset that the document belongs to .
+     * Format:
+     * projects/{project}/locations/{location}/processors/{processor}/dataset
+     * 

+     *
+     * 
+     * string dataset = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * 
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearDataset() {
+      dataset_ = getDefaultInstance().getDataset();
+      bitField0_ = (bitField0_ & ~0x00000001);
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The resource name of the dataset that the document belongs to .
+     * Format:
+     * projects/{project}/locations/{location}/processors/{processor}/dataset
+     * 

+     *
+     * 
+     * string dataset = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * 
+     *
+     * @param value The bytes for dataset to set.
+     * @return This builder for chaining.
+     */
+    public Builder setDatasetBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+      dataset_ = value;
+      bitField0_ |= 0x00000001;
+      onChanged();
+      return this;
+    }
+
+    private com.google.cloud.documentai.v1beta3.DocumentId documentId_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.documentai.v1beta3.DocumentId,
+            com.google.cloud.documentai.v1beta3.DocumentId.Builder,
+            com.google.cloud.documentai.v1beta3.DocumentIdOrBuilder>
+        documentIdBuilder_;
+    /**
+     *
+     *
+     * 
+     * Required. Document identifier.
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1beta3.DocumentId document_id = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     *
+     * @return Whether the documentId field is set.
+     */
+    public boolean hasDocumentId() {
+      return ((bitField0_ & 0x00000002) != 0);
+    }
+    /**
+     *
+     *
+     * 
+     * Required. Document identifier.
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1beta3.DocumentId document_id = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     *
+     * @return The documentId.
+     */
+    public com.google.cloud.documentai.v1beta3.DocumentId getDocumentId() {
+      if (documentIdBuilder_ == null) {
+        return documentId_ == null
+            ? com.google.cloud.documentai.v1beta3.DocumentId.getDefaultInstance()
+            : documentId_;
+      } else {
+        return documentIdBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Required. Document identifier.
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1beta3.DocumentId document_id = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    public Builder setDocumentId(com.google.cloud.documentai.v1beta3.DocumentId value) {
+      if (documentIdBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        documentId_ = value;
+      } else {
+        documentIdBuilder_.setMessage(value);
+      }
+      bitField0_ |= 0x00000002;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. Document identifier.
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1beta3.DocumentId document_id = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    public Builder setDocumentId(
+        com.google.cloud.documentai.v1beta3.DocumentId.Builder builderForValue) {
+      if (documentIdBuilder_ == null) {
+        documentId_ = builderForValue.build();
+      } else {
+        documentIdBuilder_.setMessage(builderForValue.build());
+      }
+      bitField0_ |= 0x00000002;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. Document identifier.
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1beta3.DocumentId document_id = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    public Builder mergeDocumentId(com.google.cloud.documentai.v1beta3.DocumentId value) {
+      if (documentIdBuilder_ == null) {
+        if (((bitField0_ & 0x00000002) != 0)
+            && documentId_ != null
+            && documentId_ != com.google.cloud.documentai.v1beta3.DocumentId.getDefaultInstance()) {
+          getDocumentIdBuilder().mergeFrom(value);
+        } else {
+          documentId_ = value;
+        }
+      } else {
+        documentIdBuilder_.mergeFrom(value);
+      }
+      bitField0_ |= 0x00000002;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. Document identifier.
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1beta3.DocumentId document_id = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    public Builder clearDocumentId() {
+      bitField0_ = (bitField0_ & ~0x00000002);
+      documentId_ = null;
+      if (documentIdBuilder_ != null) {
+        documentIdBuilder_.dispose();
+        documentIdBuilder_ = null;
+      }
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. Document identifier.
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1beta3.DocumentId document_id = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    public com.google.cloud.documentai.v1beta3.DocumentId.Builder getDocumentIdBuilder() {
+      bitField0_ |= 0x00000002;
+      onChanged();
+      return getDocumentIdFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * 
+     * Required. Document identifier.
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1beta3.DocumentId document_id = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    public com.google.cloud.documentai.v1beta3.DocumentIdOrBuilder getDocumentIdOrBuilder() {
+      if (documentIdBuilder_ != null) {
+        return documentIdBuilder_.getMessageOrBuilder();
+      } else {
+        return documentId_ == null
+            ? com.google.cloud.documentai.v1beta3.DocumentId.getDefaultInstance()
+            : documentId_;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Required. Document identifier.
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1beta3.DocumentId document_id = 2 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.documentai.v1beta3.DocumentId,
+            com.google.cloud.documentai.v1beta3.DocumentId.Builder,
+            com.google.cloud.documentai.v1beta3.DocumentIdOrBuilder>
+        getDocumentIdFieldBuilder() {
+      if (documentIdBuilder_ == null) {
+        documentIdBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.documentai.v1beta3.DocumentId,
+                com.google.cloud.documentai.v1beta3.DocumentId.Builder,
+                com.google.cloud.documentai.v1beta3.DocumentIdOrBuilder>(
+                getDocumentId(), getParentForChildren(), isClean());
+        documentId_ = null;
+      }
+      return documentIdBuilder_;
+    }
+
+    private com.google.protobuf.FieldMask readMask_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.protobuf.FieldMask,
+            com.google.protobuf.FieldMask.Builder,
+            com.google.protobuf.FieldMaskOrBuilder>
+        readMaskBuilder_;
+    /**
+     *
+     *
+     * 
+     * If set, only fields listed here will be returned. Otherwise, all fields
+     * will be returned by default.
+     * 

+     *
+     * .google.protobuf.FieldMask read_mask = 3;
+     *
+     * @return Whether the readMask field is set.
+     */
+    public boolean hasReadMask() {
+      return ((bitField0_ & 0x00000004) != 0);
+    }
+    /**
+     *
+     *
+     * 
+     * If set, only fields listed here will be returned. Otherwise, all fields
+     * will be returned by default.
+     * 

+     *
+     * .google.protobuf.FieldMask read_mask = 3;
+     *
+     * @return The readMask.
+     */
+    public com.google.protobuf.FieldMask getReadMask() {
+      if (readMaskBuilder_ == null) {
+        return readMask_ == null ? com.google.protobuf.FieldMask.getDefaultInstance() : readMask_;
+      } else {
+        return readMaskBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * If set, only fields listed here will be returned. Otherwise, all fields
+     * will be returned by default.
+     * 

+     *
+     * .google.protobuf.FieldMask read_mask = 3;
+     */
+    public Builder setReadMask(com.google.protobuf.FieldMask value) {
+      if (readMaskBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        readMask_ = value;
+      } else {
+        readMaskBuilder_.setMessage(value);
+      }
+      bitField0_ |= 0x00000004;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * If set, only fields listed here will be returned. Otherwise, all fields
+     * will be returned by default.
+     * 

+     *
+     * .google.protobuf.FieldMask read_mask = 3;
+     */
+    public Builder setReadMask(com.google.protobuf.FieldMask.Builder builderForValue) {
+      if (readMaskBuilder_ == null) {
+        readMask_ = builderForValue.build();
+      } else {
+        readMaskBuilder_.setMessage(builderForValue.build());
+      }
+      bitField0_ |= 0x00000004;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * If set, only fields listed here will be returned. Otherwise, all fields
+     * will be returned by default.
+     * 

+     *
+     * .google.protobuf.FieldMask read_mask = 3;
+     */
+    public Builder mergeReadMask(com.google.protobuf.FieldMask value) {
+      if (readMaskBuilder_ == null) {
+        if (((bitField0_ & 0x00000004) != 0)
+            && readMask_ != null
+            && readMask_ != com.google.protobuf.FieldMask.getDefaultInstance()) {
+          getReadMaskBuilder().mergeFrom(value);
+        } else {
+          readMask_ = value;
+        }
+      } else {
+        readMaskBuilder_.mergeFrom(value);
+      }
+      bitField0_ |= 0x00000004;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * If set, only fields listed here will be returned. Otherwise, all fields
+     * will be returned by default.
+     * 

+     *
+     * .google.protobuf.FieldMask read_mask = 3;
+     */
+    public Builder clearReadMask() {
+      bitField0_ = (bitField0_ & ~0x00000004);
+      readMask_ = null;
+      if (readMaskBuilder_ != null) {
+        readMaskBuilder_.dispose();
+        readMaskBuilder_ = null;
+      }
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * If set, only fields listed here will be returned. Otherwise, all fields
+     * will be returned by default.
+     * 

+     *
+     * .google.protobuf.FieldMask read_mask = 3;
+     */
+    public com.google.protobuf.FieldMask.Builder getReadMaskBuilder() {
+      bitField0_ |= 0x00000004;
+      onChanged();
+      return getReadMaskFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * 
+     * If set, only fields listed here will be returned. Otherwise, all fields
+     * will be returned by default.
+     * 

+     *
+     * .google.protobuf.FieldMask read_mask = 3;
+     */
+    public com.google.protobuf.FieldMaskOrBuilder getReadMaskOrBuilder() {
+      if (readMaskBuilder_ != null) {
+        return readMaskBuilder_.getMessageOrBuilder();
+      } else {
+        return readMask_ == null ? com.google.protobuf.FieldMask.getDefaultInstance() : readMask_;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * If set, only fields listed here will be returned. Otherwise, all fields
+     * will be returned by default.
+     * 

+     *
+     * .google.protobuf.FieldMask read_mask = 3;
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.protobuf.FieldMask,
+            com.google.protobuf.FieldMask.Builder,
+            com.google.protobuf.FieldMaskOrBuilder>
+        getReadMaskFieldBuilder() {
+      if (readMaskBuilder_ == null) {
+        readMaskBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.protobuf.FieldMask,
+                com.google.protobuf.FieldMask.Builder,
+                com.google.protobuf.FieldMaskOrBuilder>(
+                getReadMask(), getParentForChildren(), isClean());
+        readMask_ = null;
+      }
+      return readMaskBuilder_;
+    }
+
+    private com.google.cloud.documentai.v1beta3.DocumentPageRange pageRange_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.documentai.v1beta3.DocumentPageRange,
+            com.google.cloud.documentai.v1beta3.DocumentPageRange.Builder,
+            com.google.cloud.documentai.v1beta3.DocumentPageRangeOrBuilder>
+        pageRangeBuilder_;
+    /**
+     *
+     *
+     * 
+     * List of pages for which the fields specified in the `read_mask` must
+     * be served.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.DocumentPageRange page_range = 4;
+     *
+     * @return Whether the pageRange field is set.
+     */
+    public boolean hasPageRange() {
+      return ((bitField0_ & 0x00000008) != 0);
+    }
+    /**
+     *
+     *
+     * 
+     * List of pages for which the fields specified in the `read_mask` must
+     * be served.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.DocumentPageRange page_range = 4;
+     *
+     * @return The pageRange.
+     */
+    public com.google.cloud.documentai.v1beta3.DocumentPageRange getPageRange() {
+      if (pageRangeBuilder_ == null) {
+        return pageRange_ == null
+            ? com.google.cloud.documentai.v1beta3.DocumentPageRange.getDefaultInstance()
+            : pageRange_;
+      } else {
+        return pageRangeBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * List of pages for which the fields specified in the `read_mask` must
+     * be served.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.DocumentPageRange page_range = 4;
+     */
+    public Builder setPageRange(com.google.cloud.documentai.v1beta3.DocumentPageRange value) {
+      if (pageRangeBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        pageRange_ = value;
+      } else {
+        pageRangeBuilder_.setMessage(value);
+      }
+      bitField0_ |= 0x00000008;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * List of pages for which the fields specified in the `read_mask` must
+     * be served.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.DocumentPageRange page_range = 4;
+     */
+    public Builder setPageRange(
+        com.google.cloud.documentai.v1beta3.DocumentPageRange.Builder builderForValue) {
+      if (pageRangeBuilder_ == null) {
+        pageRange_ = builderForValue.build();
+      } else {
+        pageRangeBuilder_.setMessage(builderForValue.build());
+      }
+      bitField0_ |= 0x00000008;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * List of pages for which the fields specified in the `read_mask` must
+     * be served.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.DocumentPageRange page_range = 4;
+     */
+    public Builder mergePageRange(com.google.cloud.documentai.v1beta3.DocumentPageRange value) {
+      if (pageRangeBuilder_ == null) {
+        if (((bitField0_ & 0x00000008) != 0)
+            && pageRange_ != null
+            && pageRange_
+                != com.google.cloud.documentai.v1beta3.DocumentPageRange.getDefaultInstance()) {
+          getPageRangeBuilder().mergeFrom(value);
+        } else {
+          pageRange_ = value;
+        }
+      } else {
+        pageRangeBuilder_.mergeFrom(value);
+      }
+      bitField0_ |= 0x00000008;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * List of pages for which the fields specified in the `read_mask` must
+     * be served.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.DocumentPageRange page_range = 4;
+     */
+    public Builder clearPageRange() {
+      bitField0_ = (bitField0_ & ~0x00000008);
+      pageRange_ = null;
+      if (pageRangeBuilder_ != null) {
+        pageRangeBuilder_.dispose();
+        pageRangeBuilder_ = null;
+      }
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * List of pages for which the fields specified in the `read_mask` must
+     * be served.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.DocumentPageRange page_range = 4;
+     */
+    public com.google.cloud.documentai.v1beta3.DocumentPageRange.Builder getPageRangeBuilder() {
+      bitField0_ |= 0x00000008;
+      onChanged();
+      return getPageRangeFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * 
+     * List of pages for which the fields specified in the `read_mask` must
+     * be served.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.DocumentPageRange page_range = 4;
+     */
+    public com.google.cloud.documentai.v1beta3.DocumentPageRangeOrBuilder getPageRangeOrBuilder() {
+      if (pageRangeBuilder_ != null) {
+        return pageRangeBuilder_.getMessageOrBuilder();
+      } else {
+        return pageRange_ == null
+            ? com.google.cloud.documentai.v1beta3.DocumentPageRange.getDefaultInstance()
+            : pageRange_;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * List of pages for which the fields specified in the `read_mask` must
+     * be served.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.DocumentPageRange page_range = 4;
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.documentai.v1beta3.DocumentPageRange,
+            com.google.cloud.documentai.v1beta3.DocumentPageRange.Builder,
+            com.google.cloud.documentai.v1beta3.DocumentPageRangeOrBuilder>
+        getPageRangeFieldBuilder() {
+      if (pageRangeBuilder_ == null) {
+        pageRangeBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.documentai.v1beta3.DocumentPageRange,
+                com.google.cloud.documentai.v1beta3.DocumentPageRange.Builder,
+                com.google.cloud.documentai.v1beta3.DocumentPageRangeOrBuilder>(
+                getPageRange(), getParentForChildren(), isClean());
+        pageRange_ = null;
+      }
+      return pageRangeBuilder_;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.documentai.v1beta3.GetDocumentRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.documentai.v1beta3.GetDocumentRequest)
+  private static final com.google.cloud.documentai.v1beta3.GetDocumentRequest DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.documentai.v1beta3.GetDocumentRequest();
+  }
+
+  public static com.google.cloud.documentai.v1beta3.GetDocumentRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser PARSER =
+      new com.google.protobuf.AbstractParser() {
+        @java.lang.Override
+        public GetDocumentRequest parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
+        }
+      };
+
+  public static com.google.protobuf.Parser parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.documentai.v1beta3.GetDocumentRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/GetDocumentRequestOrBuilder.java b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/GetDocumentRequestOrBuilder.java
new file mode 100644
index 000000000000..3b1e7cd5cbff
--- /dev/null
+++ b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/GetDocumentRequestOrBuilder.java
@@ -0,0 +1,175 @@
+/*
+ * Copyright 2023 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/documentai/v1beta3/document_service.proto
+
+package com.google.cloud.documentai.v1beta3;
+
+public interface GetDocumentRequestOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.documentai.v1beta3.GetDocumentRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * 
+   * Required. The resource name of the dataset that the document belongs to .
+   * Format:
+   * projects/{project}/locations/{location}/processors/{processor}/dataset
+   * 

+   *
+   * 
+   * string dataset = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * 
+   *
+   * @return The dataset.
+   */
+  java.lang.String getDataset();
+  /**
+   *
+   *
+   * 
+   * Required. The resource name of the dataset that the document belongs to .
+   * Format:
+   * projects/{project}/locations/{location}/processors/{processor}/dataset
+   * 

+   *
+   * 
+   * string dataset = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * 
+   *
+   * @return The bytes for dataset.
+   */
+  com.google.protobuf.ByteString getDatasetBytes();
+
+  /**
+   *
+   *
+   * 
+   * Required. Document identifier.
+   * 

+   *
+   * 
+   * .google.cloud.documentai.v1beta3.DocumentId document_id = 2 [(.google.api.field_behavior) = REQUIRED];
+   * 
+   *
+   * @return Whether the documentId field is set.
+   */
+  boolean hasDocumentId();
+  /**
+   *
+   *
+   * 
+   * Required. Document identifier.
+   * 

+   *
+   * 
+   * .google.cloud.documentai.v1beta3.DocumentId document_id = 2 [(.google.api.field_behavior) = REQUIRED];
+   * 
+   *
+   * @return The documentId.
+   */
+  com.google.cloud.documentai.v1beta3.DocumentId getDocumentId();
+  /**
+   *
+   *
+   * 
+   * Required. Document identifier.
+   * 

+   *
+   * 
+   * .google.cloud.documentai.v1beta3.DocumentId document_id = 2 [(.google.api.field_behavior) = REQUIRED];
+   * 
+   */
+  com.google.cloud.documentai.v1beta3.DocumentIdOrBuilder getDocumentIdOrBuilder();
+
+  /**
+   *
+   *
+   * 
+   * If set, only fields listed here will be returned. Otherwise, all fields
+   * will be returned by default.
+   * 

+   *
+   * .google.protobuf.FieldMask read_mask = 3;
+   *
+   * @return Whether the readMask field is set.
+   */
+  boolean hasReadMask();
+  /**
+   *
+   *
+   * 
+   * If set, only fields listed here will be returned. Otherwise, all fields
+   * will be returned by default.
+   * 

+   *
+   * .google.protobuf.FieldMask read_mask = 3;
+   *
+   * @return The readMask.
+   */
+  com.google.protobuf.FieldMask getReadMask();
+  /**
+   *
+   *
+   * 
+   * If set, only fields listed here will be returned. Otherwise, all fields
+   * will be returned by default.
+   * 

+   *
+   * .google.protobuf.FieldMask read_mask = 3;
+   */
+  com.google.protobuf.FieldMaskOrBuilder getReadMaskOrBuilder();
+
+  /**
+   *
+   *
+   * 
+   * List of pages for which the fields specified in the `read_mask` must
+   * be served.
+   * 

+   *
+   * .google.cloud.documentai.v1beta3.DocumentPageRange page_range = 4;
+   *
+   * @return Whether the pageRange field is set.
+   */
+  boolean hasPageRange();
+  /**
+   *
+   *
+   * 
+   * List of pages for which the fields specified in the `read_mask` must
+   * be served.
+   * 

+   *
+   * .google.cloud.documentai.v1beta3.DocumentPageRange page_range = 4;
+   *
+   * @return The pageRange.
+   */
+  com.google.cloud.documentai.v1beta3.DocumentPageRange getPageRange();
+  /**
+   *
+   *
+   * 
+   * List of pages for which the fields specified in the `read_mask` must
+   * be served.
+   * 

+   *
+   * .google.cloud.documentai.v1beta3.DocumentPageRange page_range = 4;
+   */
+  com.google.cloud.documentai.v1beta3.DocumentPageRangeOrBuilder getPageRangeOrBuilder();
+}
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/GetDocumentResponse.java b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/GetDocumentResponse.java
new file mode 100644
index 000000000000..a54ff9168666
--- /dev/null
+++ b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/GetDocumentResponse.java
@@ -0,0 +1,603 @@
+/*
+ * Copyright 2023 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/documentai/v1beta3/document_service.proto
+
+package com.google.cloud.documentai.v1beta3;
+
+/** Protobuf type {@code google.cloud.documentai.v1beta3.GetDocumentResponse} */
+public final class GetDocumentResponse extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.documentai.v1beta3.GetDocumentResponse)
+    GetDocumentResponseOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use GetDocumentResponse.newBuilder() to construct.
+  private GetDocumentResponse(com.google.protobuf.GeneratedMessageV3.Builder builder) {
+    super(builder);
+  }
+
+  private GetDocumentResponse() {}
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new GetDocumentResponse();
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.documentai.v1beta3.DocumentAiDocumentService
+        .internal_static_google_cloud_documentai_v1beta3_GetDocumentResponse_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.documentai.v1beta3.DocumentAiDocumentService
+        .internal_static_google_cloud_documentai_v1beta3_GetDocumentResponse_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.documentai.v1beta3.GetDocumentResponse.class,
+            com.google.cloud.documentai.v1beta3.GetDocumentResponse.Builder.class);
+  }
+
+  public static final int DOCUMENT_FIELD_NUMBER = 1;
+  private com.google.cloud.documentai.v1beta3.Document document_;
+  /**
+   * .google.cloud.documentai.v1beta3.Document document = 1;
+   *
+   * @return Whether the document field is set.
+   */
+  @java.lang.Override
+  public boolean hasDocument() {
+    return document_ != null;
+  }
+  /**
+   * .google.cloud.documentai.v1beta3.Document document = 1;
+   *
+   * @return The document.
+   */
+  @java.lang.Override
+  public com.google.cloud.documentai.v1beta3.Document getDocument() {
+    return document_ == null
+        ? com.google.cloud.documentai.v1beta3.Document.getDefaultInstance()
+        : document_;
+  }
+  /** .google.cloud.documentai.v1beta3.Document document = 1; */
+  @java.lang.Override
+  public com.google.cloud.documentai.v1beta3.DocumentOrBuilder getDocumentOrBuilder() {
+    return document_ == null
+        ? com.google.cloud.documentai.v1beta3.Document.getDefaultInstance()
+        : document_;
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (document_ != null) {
+      output.writeMessage(1, getDocument());
+    }
+    getUnknownFields().writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (document_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, getDocument());
+    }
+    size += getUnknownFields().getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.documentai.v1beta3.GetDocumentResponse)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.documentai.v1beta3.GetDocumentResponse other =
+        (com.google.cloud.documentai.v1beta3.GetDocumentResponse) obj;
+
+    if (hasDocument() != other.hasDocument()) return false;
+    if (hasDocument()) {
+      if (!getDocument().equals(other.getDocument())) return false;
+    }
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    if (hasDocument()) {
+      hash = (37 * hash) + DOCUMENT_FIELD_NUMBER;
+      hash = (53 * hash) + getDocument().hashCode();
+    }
+    hash = (29 * hash) + getUnknownFields().hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.documentai.v1beta3.GetDocumentResponse parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.GetDocumentResponse parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
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+    return PARSER.parseFrom(data);
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+  public static com.google.cloud.documentai.v1beta3.GetDocumentResponse parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
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+  public static com.google.cloud.documentai.v1beta3.GetDocumentResponse parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.GetDocumentResponse parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
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+  public static com.google.cloud.documentai.v1beta3.GetDocumentResponse parseFrom(
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+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
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+  public static com.google.cloud.documentai.v1beta3.GetDocumentResponse parseFrom(
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+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
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+  public static Builder newBuilder(
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+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
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+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
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+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
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+  /** Protobuf type {@code google.cloud.documentai.v1beta3.GetDocumentResponse} */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.documentai.v1beta3.GetDocumentResponse)
+      com.google.cloud.documentai.v1beta3.GetDocumentResponseOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.documentai.v1beta3.DocumentAiDocumentService
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+    private Builder() {}
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
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+      if (documentBuilder_ != null) {
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+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.documentai.v1beta3.DocumentAiDocumentService
+          .internal_static_google_cloud_documentai_v1beta3_GetDocumentResponse_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta3.GetDocumentResponse getDefaultInstanceForType() {
+      return com.google.cloud.documentai.v1beta3.GetDocumentResponse.getDefaultInstance();
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+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta3.GetDocumentResponse build() {
+      com.google.cloud.documentai.v1beta3.GetDocumentResponse result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
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+      return result;
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+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta3.GetDocumentResponse buildPartial() {
+      com.google.cloud.documentai.v1beta3.GetDocumentResponse result =
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+      if (bitField0_ != 0) {
+        buildPartial0(result);
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+      onBuilt();
+      return result;
+    }
+
+    private void buildPartial0(com.google.cloud.documentai.v1beta3.GetDocumentResponse result) {
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+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
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+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
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+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
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+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
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+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.documentai.v1beta3.GetDocumentResponse) {
+        return mergeFrom((com.google.cloud.documentai.v1beta3.GetDocumentResponse) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.documentai.v1beta3.GetDocumentResponse other) {
+      if (other == com.google.cloud.documentai.v1beta3.GetDocumentResponse.getDefaultInstance())
+        return this;
+      if (other.hasDocument()) {
+        mergeDocument(other.getDocument());
+      }
+      this.mergeUnknownFields(other.getUnknownFields());
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
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+                input.readMessage(getDocumentFieldBuilder().getBuilder(), extensionRegistry);
+                bitField0_ |= 0x00000001;
+                break;
+              } // case 10
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+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        throw e.unwrapIOException();
+      } finally {
+        onChanged();
+      } // finally
+      return this;
+    }
+
+    private int bitField0_;
+
+    private com.google.cloud.documentai.v1beta3.Document document_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.documentai.v1beta3.Document,
+            com.google.cloud.documentai.v1beta3.Document.Builder,
+            com.google.cloud.documentai.v1beta3.DocumentOrBuilder>
+        documentBuilder_;
+    /**
+     * .google.cloud.documentai.v1beta3.Document document = 1;
+     *
+     * @return Whether the document field is set.
+     */
+    public boolean hasDocument() {
+      return ((bitField0_ & 0x00000001) != 0);
+    }
+    /**
+     * .google.cloud.documentai.v1beta3.Document document = 1;
+     *
+     * @return The document.
+     */
+    public com.google.cloud.documentai.v1beta3.Document getDocument() {
+      if (documentBuilder_ == null) {
+        return document_ == null
+            ? com.google.cloud.documentai.v1beta3.Document.getDefaultInstance()
+            : document_;
+      } else {
+        return documentBuilder_.getMessage();
+      }
+    }
+    /** .google.cloud.documentai.v1beta3.Document document = 1; */
+    public Builder setDocument(com.google.cloud.documentai.v1beta3.Document value) {
+      if (documentBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        document_ = value;
+      } else {
+        documentBuilder_.setMessage(value);
+      }
+      bitField0_ |= 0x00000001;
+      onChanged();
+      return this;
+    }
+    /** .google.cloud.documentai.v1beta3.Document document = 1; */
+    public Builder setDocument(
+        com.google.cloud.documentai.v1beta3.Document.Builder builderForValue) {
+      if (documentBuilder_ == null) {
+        document_ = builderForValue.build();
+      } else {
+        documentBuilder_.setMessage(builderForValue.build());
+      }
+      bitField0_ |= 0x00000001;
+      onChanged();
+      return this;
+    }
+    /** .google.cloud.documentai.v1beta3.Document document = 1; */
+    public Builder mergeDocument(com.google.cloud.documentai.v1beta3.Document value) {
+      if (documentBuilder_ == null) {
+        if (((bitField0_ & 0x00000001) != 0)
+            && document_ != null
+            && document_ != com.google.cloud.documentai.v1beta3.Document.getDefaultInstance()) {
+          getDocumentBuilder().mergeFrom(value);
+        } else {
+          document_ = value;
+        }
+      } else {
+        documentBuilder_.mergeFrom(value);
+      }
+      bitField0_ |= 0x00000001;
+      onChanged();
+      return this;
+    }
+    /** .google.cloud.documentai.v1beta3.Document document = 1; */
+    public Builder clearDocument() {
+      bitField0_ = (bitField0_ & ~0x00000001);
+      document_ = null;
+      if (documentBuilder_ != null) {
+        documentBuilder_.dispose();
+        documentBuilder_ = null;
+      }
+      onChanged();
+      return this;
+    }
+    /** .google.cloud.documentai.v1beta3.Document document = 1; */
+    public com.google.cloud.documentai.v1beta3.Document.Builder getDocumentBuilder() {
+      bitField0_ |= 0x00000001;
+      onChanged();
+      return getDocumentFieldBuilder().getBuilder();
+    }
+    /** .google.cloud.documentai.v1beta3.Document document = 1; */
+    public com.google.cloud.documentai.v1beta3.DocumentOrBuilder getDocumentOrBuilder() {
+      if (documentBuilder_ != null) {
+        return documentBuilder_.getMessageOrBuilder();
+      } else {
+        return document_ == null
+            ? com.google.cloud.documentai.v1beta3.Document.getDefaultInstance()
+            : document_;
+      }
+    }
+    /** .google.cloud.documentai.v1beta3.Document document = 1; */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.documentai.v1beta3.Document,
+            com.google.cloud.documentai.v1beta3.Document.Builder,
+            com.google.cloud.documentai.v1beta3.DocumentOrBuilder>
+        getDocumentFieldBuilder() {
+      if (documentBuilder_ == null) {
+        documentBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.documentai.v1beta3.Document,
+                com.google.cloud.documentai.v1beta3.Document.Builder,
+                com.google.cloud.documentai.v1beta3.DocumentOrBuilder>(
+                getDocument(), getParentForChildren(), isClean());
+        document_ = null;
+      }
+      return documentBuilder_;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.documentai.v1beta3.GetDocumentResponse)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.documentai.v1beta3.GetDocumentResponse)
+  private static final com.google.cloud.documentai.v1beta3.GetDocumentResponse DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.documentai.v1beta3.GetDocumentResponse();
+  }
+
+  public static com.google.cloud.documentai.v1beta3.GetDocumentResponse getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser PARSER =
+      new com.google.protobuf.AbstractParser() {
+        @java.lang.Override
+        public GetDocumentResponse parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
+        }
+      };
+
+  public static com.google.protobuf.Parser parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.documentai.v1beta3.GetDocumentResponse getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/GetDocumentResponseOrBuilder.java b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/GetDocumentResponseOrBuilder.java
new file mode 100644
index 000000000000..f23d8ace0c06
--- /dev/null
+++ b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/GetDocumentResponseOrBuilder.java
@@ -0,0 +1,40 @@
+/*
+ * Copyright 2023 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/documentai/v1beta3/document_service.proto
+
+package com.google.cloud.documentai.v1beta3;
+
+public interface GetDocumentResponseOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.documentai.v1beta3.GetDocumentResponse)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   * .google.cloud.documentai.v1beta3.Document document = 1;
+   *
+   * @return Whether the document field is set.
+   */
+  boolean hasDocument();
+  /**
+   * .google.cloud.documentai.v1beta3.Document document = 1;
+   *
+   * @return The document.
+   */
+  com.google.cloud.documentai.v1beta3.Document getDocument();
+  /** .google.cloud.documentai.v1beta3.Document document = 1; */
+  com.google.cloud.documentai.v1beta3.DocumentOrBuilder getDocumentOrBuilder();
+}
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/ImportDocumentsMetadata.java b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/ImportDocumentsMetadata.java
new file mode 100644
index 000000000000..5fc1ecbe0e44
--- /dev/null
+++ b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/ImportDocumentsMetadata.java
@@ -0,0 +1,4308 @@
+/*
+ * Copyright 2023 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/documentai/v1beta3/document_service.proto
+
+package com.google.cloud.documentai.v1beta3;
+
+/**
+ *
+ *
+ * 
+ * Metadata of the import document operation.
+ * 

+ *
+ * Protobuf type {@code google.cloud.documentai.v1beta3.ImportDocumentsMetadata}
+ */
+public final class ImportDocumentsMetadata extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.documentai.v1beta3.ImportDocumentsMetadata)
+    ImportDocumentsMetadataOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use ImportDocumentsMetadata.newBuilder() to construct.
+  private ImportDocumentsMetadata(com.google.protobuf.GeneratedMessageV3.Builder builder) {
+    super(builder);
+  }
+
+  private ImportDocumentsMetadata() {
+    individualImportStatuses_ = java.util.Collections.emptyList();
+    importConfigValidationResults_ = java.util.Collections.emptyList();
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new ImportDocumentsMetadata();
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.documentai.v1beta3.DocumentAiDocumentService
+        .internal_static_google_cloud_documentai_v1beta3_ImportDocumentsMetadata_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.documentai.v1beta3.DocumentAiDocumentService
+        .internal_static_google_cloud_documentai_v1beta3_ImportDocumentsMetadata_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.class,
+            com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.Builder.class);
+  }
+
+  public interface IndividualImportStatusOrBuilder
+      extends
+      // @@protoc_insertion_point(interface_extends:google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus)
+      com.google.protobuf.MessageOrBuilder {
+
+    /**
+     *
+     *
+     * 
+     * The source Cloud Storage URI of the document.
+     * 

+     *
+     * string input_gcs_source = 1;
+     *
+     * @return The inputGcsSource.
+     */
+    java.lang.String getInputGcsSource();
+    /**
+     *
+     *
+     * 
+     * The source Cloud Storage URI of the document.
+     * 

+     *
+     * string input_gcs_source = 1;
+     *
+     * @return The bytes for inputGcsSource.
+     */
+    com.google.protobuf.ByteString getInputGcsSourceBytes();
+
+    /**
+     *
+     *
+     * 
+     * The status of the importing of the document.
+     * 

+     *
+     * .google.rpc.Status status = 2;
+     *
+     * @return Whether the status field is set.
+     */
+    boolean hasStatus();
+    /**
+     *
+     *
+     * 
+     * The status of the importing of the document.
+     * 

+     *
+     * .google.rpc.Status status = 2;
+     *
+     * @return The status.
+     */
+    com.google.rpc.Status getStatus();
+    /**
+     *
+     *
+     * 
+     * The status of the importing of the document.
+     * 

+     *
+     * .google.rpc.Status status = 2;
+     */
+    com.google.rpc.StatusOrBuilder getStatusOrBuilder();
+
+    /**
+     *
+     *
+     * 
+     * The document id of imported document if it was successful, otherwise
+     * empty.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.DocumentId output_document_id = 4;
+     *
+     * @return Whether the outputDocumentId field is set.
+     */
+    boolean hasOutputDocumentId();
+    /**
+     *
+     *
+     * 
+     * The document id of imported document if it was successful, otherwise
+     * empty.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.DocumentId output_document_id = 4;
+     *
+     * @return The outputDocumentId.
+     */
+    com.google.cloud.documentai.v1beta3.DocumentId getOutputDocumentId();
+    /**
+     *
+     *
+     * 
+     * The document id of imported document if it was successful, otherwise
+     * empty.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.DocumentId output_document_id = 4;
+     */
+    com.google.cloud.documentai.v1beta3.DocumentIdOrBuilder getOutputDocumentIdOrBuilder();
+  }
+  /**
+   *
+   *
+   * 
+   * The status of each individual document in the import process.
+   * 

+   *
+   * Protobuf type {@code
+   * google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus}
+   */
+  public static final class IndividualImportStatus extends com.google.protobuf.GeneratedMessageV3
+      implements
+      // @@protoc_insertion_point(message_implements:google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus)
+      IndividualImportStatusOrBuilder {
+    private static final long serialVersionUID = 0L;
+    // Use IndividualImportStatus.newBuilder() to construct.
+    private IndividualImportStatus(com.google.protobuf.GeneratedMessageV3.Builder builder) {
+      super(builder);
+    }
+
+    private IndividualImportStatus() {
+      inputGcsSource_ = "";
+    }
+
+    @java.lang.Override
+    @SuppressWarnings({"unused"})
+    protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+      return new IndividualImportStatus();
+    }
+
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.documentai.v1beta3.DocumentAiDocumentService
+          .internal_static_google_cloud_documentai_v1beta3_ImportDocumentsMetadata_IndividualImportStatus_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.documentai.v1beta3.DocumentAiDocumentService
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+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus
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+              com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus
+                  .Builder.class);
+    }
+
+    public static final int INPUT_GCS_SOURCE_FIELD_NUMBER = 1;
+
+    @SuppressWarnings("serial")
+    private volatile java.lang.Object inputGcsSource_ = "";
+    /**
+     *
+     *
+     * 
+     * The source Cloud Storage URI of the document.
+     * 

+     *
+     * string input_gcs_source = 1;
+     *
+     * @return The inputGcsSource.
+     */
+    @java.lang.Override
+    public java.lang.String getInputGcsSource() {
+      java.lang.Object ref = inputGcsSource_;
+      if (ref instanceof java.lang.String) {
+        return (java.lang.String) ref;
+      } else {
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+        java.lang.String s = bs.toStringUtf8();
+        inputGcsSource_ = s;
+        return s;
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+    }
+    /**
+     *
+     *
+     * 
+     * The source Cloud Storage URI of the document.
+     * 

+     *
+     * string input_gcs_source = 1;
+     *
+     * @return The bytes for inputGcsSource.
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+    @java.lang.Override
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+      java.lang.Object ref = inputGcsSource_;
+      if (ref instanceof java.lang.String) {
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+        inputGcsSource_ = b;
+        return b;
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+        return (com.google.protobuf.ByteString) ref;
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+
+    public static final int STATUS_FIELD_NUMBER = 2;
+    private com.google.rpc.Status status_;
+    /**
+     *
+     *
+     * 
+     * The status of the importing of the document.
+     * 

+     *
+     * .google.rpc.Status status = 2;
+     *
+     * @return Whether the status field is set.
+     */
+    @java.lang.Override
+    public boolean hasStatus() {
+      return status_ != null;
+    }
+    /**
+     *
+     *
+     * 
+     * The status of the importing of the document.
+     * 

+     *
+     * .google.rpc.Status status = 2;
+     *
+     * @return The status.
+     */
+    @java.lang.Override
+    public com.google.rpc.Status getStatus() {
+      return status_ == null ? com.google.rpc.Status.getDefaultInstance() : status_;
+    }
+    /**
+     *
+     *
+     * 
+     * The status of the importing of the document.
+     * 

+     *
+     * .google.rpc.Status status = 2;
+     */
+    @java.lang.Override
+    public com.google.rpc.StatusOrBuilder getStatusOrBuilder() {
+      return status_ == null ? com.google.rpc.Status.getDefaultInstance() : status_;
+    }
+
+    public static final int OUTPUT_DOCUMENT_ID_FIELD_NUMBER = 4;
+    private com.google.cloud.documentai.v1beta3.DocumentId outputDocumentId_;
+    /**
+     *
+     *
+     * 
+     * The document id of imported document if it was successful, otherwise
+     * empty.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.DocumentId output_document_id = 4;
+     *
+     * @return Whether the outputDocumentId field is set.
+     */
+    @java.lang.Override
+    public boolean hasOutputDocumentId() {
+      return outputDocumentId_ != null;
+    }
+    /**
+     *
+     *
+     * 
+     * The document id of imported document if it was successful, otherwise
+     * empty.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.DocumentId output_document_id = 4;
+     *
+     * @return The outputDocumentId.
+     */
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta3.DocumentId getOutputDocumentId() {
+      return outputDocumentId_ == null
+          ? com.google.cloud.documentai.v1beta3.DocumentId.getDefaultInstance()
+          : outputDocumentId_;
+    }
+    /**
+     *
+     *
+     * 
+     * The document id of imported document if it was successful, otherwise
+     * empty.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.DocumentId output_document_id = 4;
+     */
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta3.DocumentIdOrBuilder getOutputDocumentIdOrBuilder() {
+      return outputDocumentId_ == null
+          ? com.google.cloud.documentai.v1beta3.DocumentId.getDefaultInstance()
+          : outputDocumentId_;
+    }
+
+    private byte memoizedIsInitialized = -1;
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      byte isInitialized = memoizedIsInitialized;
+      if (isInitialized == 1) return true;
+      if (isInitialized == 0) return false;
+
+      memoizedIsInitialized = 1;
+      return true;
+    }
+
+    @java.lang.Override
+    public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(inputGcsSource_)) {
+        com.google.protobuf.GeneratedMessageV3.writeString(output, 1, inputGcsSource_);
+      }
+      if (status_ != null) {
+        output.writeMessage(2, getStatus());
+      }
+      if (outputDocumentId_ != null) {
+        output.writeMessage(4, getOutputDocumentId());
+      }
+      getUnknownFields().writeTo(output);
+    }
+
+    @java.lang.Override
+    public int getSerializedSize() {
+      int size = memoizedSize;
+      if (size != -1) return size;
+
+      size = 0;
+      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(inputGcsSource_)) {
+        size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, inputGcsSource_);
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+        size += com.google.protobuf.CodedOutputStream.computeMessageSize(2, getStatus());
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+      size += getUnknownFields().getSerializedSize();
+      memoizedSize = size;
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+
+    @java.lang.Override
+    public boolean equals(final java.lang.Object obj) {
+      if (obj == this) {
+        return true;
+      }
+      if (!(obj
+          instanceof
+          com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus)) {
+        return super.equals(obj);
+      }
+      com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus other =
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+      if (!getInputGcsSource().equals(other.getInputGcsSource())) return false;
+      if (hasStatus() != other.hasStatus()) return false;
+      if (hasStatus()) {
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+      }
+      if (hasOutputDocumentId() != other.hasOutputDocumentId()) return false;
+      if (hasOutputDocumentId()) {
+        if (!getOutputDocumentId().equals(other.getOutputDocumentId())) return false;
+      }
+      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
+      return true;
+    }
+
+    @java.lang.Override
+    public int hashCode() {
+      if (memoizedHashCode != 0) {
+        return memoizedHashCode;
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+      int hash = 41;
+      hash = (19 * hash) + getDescriptor().hashCode();
+      hash = (37 * hash) + INPUT_GCS_SOURCE_FIELD_NUMBER;
+      hash = (53 * hash) + getInputGcsSource().hashCode();
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+      memoizedHashCode = hash;
+      return hash;
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+        parseFrom(java.nio.ByteBuffer data)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus
+        parseFrom(
+            java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus
+        parseFrom(com.google.protobuf.ByteString data)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus
+        parseFrom(
+            com.google.protobuf.ByteString data,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus
+        parseFrom(byte[] data) throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus
+        parseFrom(byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus
+        parseFrom(java.io.InputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus
+        parseFrom(
+            java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    public static com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus
+        parseDelimitedFrom(java.io.InputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus
+        parseDelimitedFrom(
+            java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+          PARSER, input, extensionRegistry);
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+
+    public static com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus
+        parseFrom(com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus
+        parseFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+          PARSER, input, extensionRegistry);
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+
+    @java.lang.Override
+    public Builder newBuilderForType() {
+      return newBuilder();
+    }
+
+    public static Builder newBuilder() {
+      return DEFAULT_INSTANCE.toBuilder();
+    }
+
+    public static Builder newBuilder(
+        com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus
+            prototype) {
+      return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+    }
+
+    @java.lang.Override
+    public Builder toBuilder() {
+      return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+    }
+
+    @java.lang.Override
+    protected Builder newBuilderForType(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      Builder builder = new Builder(parent);
+      return builder;
+    }
+    /**
+     *
+     *
+     * 
+     * The status of each individual document in the import process.
+     * 

+     *
+     * Protobuf type {@code
+     * google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus}
+     */
+    public static final class Builder
+        extends com.google.protobuf.GeneratedMessageV3.Builder
+        implements
+        // @@protoc_insertion_point(builder_implements:google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus)
+        com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata
+            .IndividualImportStatusOrBuilder {
+      public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+        return com.google.cloud.documentai.v1beta3.DocumentAiDocumentService
+            .internal_static_google_cloud_documentai_v1beta3_ImportDocumentsMetadata_IndividualImportStatus_descriptor;
+      }
+
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+            .ensureFieldAccessorsInitialized(
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+                com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus
+                    .Builder.class);
+      }
+
+      // Construct using
+      // com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus.newBuilder()
+      private Builder() {}
+
+      private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+        super(parent);
+      }
+
+      @java.lang.Override
+      public Builder clear() {
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+        bitField0_ = 0;
+        inputGcsSource_ = "";
+        status_ = null;
+        if (statusBuilder_ != null) {
+          statusBuilder_.dispose();
+          statusBuilder_ = null;
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+        outputDocumentId_ = null;
+        if (outputDocumentIdBuilder_ != null) {
+          outputDocumentIdBuilder_.dispose();
+          outputDocumentIdBuilder_ = null;
+        }
+        return this;
+      }
+
+      @java.lang.Override
+      public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+        return com.google.cloud.documentai.v1beta3.DocumentAiDocumentService
+            .internal_static_google_cloud_documentai_v1beta3_ImportDocumentsMetadata_IndividualImportStatus_descriptor;
+      }
+
+      @java.lang.Override
+      public com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus
+          getDefaultInstanceForType() {
+        return com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus
+            .getDefaultInstance();
+      }
+
+      @java.lang.Override
+      public com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus
+          build() {
+        com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus result =
+            buildPartial();
+        if (!result.isInitialized()) {
+          throw newUninitializedMessageException(result);
+        }
+        return result;
+      }
+
+      @java.lang.Override
+      public com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus
+          buildPartial() {
+        com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus result =
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+        onBuilt();
+        return result;
+      }
+
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+      @java.lang.Override
+      public Builder setField(
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+      @java.lang.Override
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+      @java.lang.Override
+      public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
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+      @java.lang.Override
+      public Builder setRepeatedField(
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+      @java.lang.Override
+      public Builder addRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+        return super.addRepeatedField(field, value);
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+
+      @java.lang.Override
+      public Builder mergeFrom(com.google.protobuf.Message other) {
+        if (other
+            instanceof
+            com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus) {
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+          return this;
+        }
+      }
+
+      public Builder mergeFrom(
+          com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus
+              other) {
+        if (other
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+        return this;
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+
+      @java.lang.Override
+      public final boolean isInitialized() {
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+
+      @java.lang.Override
+      public Builder mergeFrom(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
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+                  break;
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+       * string input_gcs_source = 1;
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+      /**
+       *
+       *
+       * 
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+       * 

+       *
+       * string input_gcs_source = 1;
+       *
+       * @param value The inputGcsSource to set.
+       * @return This builder for chaining.
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+        if (value == null) {
+          throw new NullPointerException();
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+        inputGcsSource_ = value;
+        bitField0_ |= 0x00000001;
+        onChanged();
+        return this;
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+      /**
+       *
+       *
+       * 
+       * The source Cloud Storage URI of the document.
+       * 

+       *
+       * string input_gcs_source = 1;
+       *
+       * @return This builder for chaining.
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+      public Builder clearInputGcsSource() {
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+        return this;
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+       * @return This builder for chaining.
+       */
+      public Builder setInputGcsSourceBytes(com.google.protobuf.ByteString value) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        checkByteStringIsUtf8(value);
+        inputGcsSource_ = value;
+        bitField0_ |= 0x00000001;
+        onChanged();
+        return this;
+      }
+
+      private com.google.rpc.Status status_;
+      private com.google.protobuf.SingleFieldBuilderV3<
+              com.google.rpc.Status, com.google.rpc.Status.Builder, com.google.rpc.StatusOrBuilder>
+          statusBuilder_;
+      /**
+       *
+       *
+       * 
+       * The status of the importing of the document.
+       * 

+       *
+       * .google.rpc.Status status = 2;
+       *
+       * @return Whether the status field is set.
+       */
+      public boolean hasStatus() {
+        return ((bitField0_ & 0x00000002) != 0);
+      }
+      /**
+       *
+       *
+       * 
+       * The status of the importing of the document.
+       * 

+       *
+       * .google.rpc.Status status = 2;
+       *
+       * @return The status.
+       */
+      public com.google.rpc.Status getStatus() {
+        if (statusBuilder_ == null) {
+          return status_ == null ? com.google.rpc.Status.getDefaultInstance() : status_;
+        } else {
+          return statusBuilder_.getMessage();
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * The status of the importing of the document.
+       * 

+       *
+       * .google.rpc.Status status = 2;
+       */
+      public Builder setStatus(com.google.rpc.Status value) {
+        if (statusBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          status_ = value;
+        } else {
+          statusBuilder_.setMessage(value);
+        }
+        bitField0_ |= 0x00000002;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * The status of the importing of the document.
+       * 

+       *
+       * .google.rpc.Status status = 2;
+       */
+      public Builder setStatus(com.google.rpc.Status.Builder builderForValue) {
+        if (statusBuilder_ == null) {
+          status_ = builderForValue.build();
+        } else {
+          statusBuilder_.setMessage(builderForValue.build());
+        }
+        bitField0_ |= 0x00000002;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * The status of the importing of the document.
+       * 

+       *
+       * .google.rpc.Status status = 2;
+       */
+      public Builder mergeStatus(com.google.rpc.Status value) {
+        if (statusBuilder_ == null) {
+          if (((bitField0_ & 0x00000002) != 0)
+              && status_ != null
+              && status_ != com.google.rpc.Status.getDefaultInstance()) {
+            getStatusBuilder().mergeFrom(value);
+          } else {
+            status_ = value;
+          }
+        } else {
+          statusBuilder_.mergeFrom(value);
+        }
+        bitField0_ |= 0x00000002;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * The status of the importing of the document.
+       * 

+       *
+       * .google.rpc.Status status = 2;
+       */
+      public Builder clearStatus() {
+        bitField0_ = (bitField0_ & ~0x00000002);
+        status_ = null;
+        if (statusBuilder_ != null) {
+          statusBuilder_.dispose();
+          statusBuilder_ = null;
+        }
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * The status of the importing of the document.
+       * 

+       *
+       * .google.rpc.Status status = 2;
+       */
+      public com.google.rpc.Status.Builder getStatusBuilder() {
+        bitField0_ |= 0x00000002;
+        onChanged();
+        return getStatusFieldBuilder().getBuilder();
+      }
+      /**
+       *
+       *
+       * 
+       * The status of the importing of the document.
+       * 

+       *
+       * .google.rpc.Status status = 2;
+       */
+      public com.google.rpc.StatusOrBuilder getStatusOrBuilder() {
+        if (statusBuilder_ != null) {
+          return statusBuilder_.getMessageOrBuilder();
+        } else {
+          return status_ == null ? com.google.rpc.Status.getDefaultInstance() : status_;
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * The status of the importing of the document.
+       * 

+       *
+       * .google.rpc.Status status = 2;
+       */
+      private com.google.protobuf.SingleFieldBuilderV3<
+              com.google.rpc.Status, com.google.rpc.Status.Builder, com.google.rpc.StatusOrBuilder>
+          getStatusFieldBuilder() {
+        if (statusBuilder_ == null) {
+          statusBuilder_ =
+              new com.google.protobuf.SingleFieldBuilderV3<
+                  com.google.rpc.Status,
+                  com.google.rpc.Status.Builder,
+                  com.google.rpc.StatusOrBuilder>(getStatus(), getParentForChildren(), isClean());
+          status_ = null;
+        }
+        return statusBuilder_;
+      }
+
+      private com.google.cloud.documentai.v1beta3.DocumentId outputDocumentId_;
+      private com.google.protobuf.SingleFieldBuilderV3<
+              com.google.cloud.documentai.v1beta3.DocumentId,
+              com.google.cloud.documentai.v1beta3.DocumentId.Builder,
+              com.google.cloud.documentai.v1beta3.DocumentIdOrBuilder>
+          outputDocumentIdBuilder_;
+      /**
+       *
+       *
+       * 
+       * The document id of imported document if it was successful, otherwise
+       * empty.
+       * 

+       *
+       * .google.cloud.documentai.v1beta3.DocumentId output_document_id = 4;
+       *
+       * @return Whether the outputDocumentId field is set.
+       */
+      public boolean hasOutputDocumentId() {
+        return ((bitField0_ & 0x00000004) != 0);
+      }
+      /**
+       *
+       *
+       * 
+       * The document id of imported document if it was successful, otherwise
+       * empty.
+       * 

+       *
+       * .google.cloud.documentai.v1beta3.DocumentId output_document_id = 4;
+       *
+       * @return The outputDocumentId.
+       */
+      public com.google.cloud.documentai.v1beta3.DocumentId getOutputDocumentId() {
+        if (outputDocumentIdBuilder_ == null) {
+          return outputDocumentId_ == null
+              ? com.google.cloud.documentai.v1beta3.DocumentId.getDefaultInstance()
+              : outputDocumentId_;
+        } else {
+          return outputDocumentIdBuilder_.getMessage();
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * The document id of imported document if it was successful, otherwise
+       * empty.
+       * 

+       *
+       * .google.cloud.documentai.v1beta3.DocumentId output_document_id = 4;
+       */
+      public Builder setOutputDocumentId(com.google.cloud.documentai.v1beta3.DocumentId value) {
+        if (outputDocumentIdBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          outputDocumentId_ = value;
+        } else {
+          outputDocumentIdBuilder_.setMessage(value);
+        }
+        bitField0_ |= 0x00000004;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * The document id of imported document if it was successful, otherwise
+       * empty.
+       * 

+       *
+       * .google.cloud.documentai.v1beta3.DocumentId output_document_id = 4;
+       */
+      public Builder setOutputDocumentId(
+          com.google.cloud.documentai.v1beta3.DocumentId.Builder builderForValue) {
+        if (outputDocumentIdBuilder_ == null) {
+          outputDocumentId_ = builderForValue.build();
+        } else {
+          outputDocumentIdBuilder_.setMessage(builderForValue.build());
+        }
+        bitField0_ |= 0x00000004;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * The document id of imported document if it was successful, otherwise
+       * empty.
+       * 

+       *
+       * .google.cloud.documentai.v1beta3.DocumentId output_document_id = 4;
+       */
+      public Builder mergeOutputDocumentId(com.google.cloud.documentai.v1beta3.DocumentId value) {
+        if (outputDocumentIdBuilder_ == null) {
+          if (((bitField0_ & 0x00000004) != 0)
+              && outputDocumentId_ != null
+              && outputDocumentId_
+                  != com.google.cloud.documentai.v1beta3.DocumentId.getDefaultInstance()) {
+            getOutputDocumentIdBuilder().mergeFrom(value);
+          } else {
+            outputDocumentId_ = value;
+          }
+        } else {
+          outputDocumentIdBuilder_.mergeFrom(value);
+        }
+        bitField0_ |= 0x00000004;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * The document id of imported document if it was successful, otherwise
+       * empty.
+       * 

+       *
+       * .google.cloud.documentai.v1beta3.DocumentId output_document_id = 4;
+       */
+      public Builder clearOutputDocumentId() {
+        bitField0_ = (bitField0_ & ~0x00000004);
+        outputDocumentId_ = null;
+        if (outputDocumentIdBuilder_ != null) {
+          outputDocumentIdBuilder_.dispose();
+          outputDocumentIdBuilder_ = null;
+        }
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * The document id of imported document if it was successful, otherwise
+       * empty.
+       * 

+       *
+       * .google.cloud.documentai.v1beta3.DocumentId output_document_id = 4;
+       */
+      public com.google.cloud.documentai.v1beta3.DocumentId.Builder getOutputDocumentIdBuilder() {
+        bitField0_ |= 0x00000004;
+        onChanged();
+        return getOutputDocumentIdFieldBuilder().getBuilder();
+      }
+      /**
+       *
+       *
+       * 
+       * The document id of imported document if it was successful, otherwise
+       * empty.
+       * 

+       *
+       * .google.cloud.documentai.v1beta3.DocumentId output_document_id = 4;
+       */
+      public com.google.cloud.documentai.v1beta3.DocumentIdOrBuilder
+          getOutputDocumentIdOrBuilder() {
+        if (outputDocumentIdBuilder_ != null) {
+          return outputDocumentIdBuilder_.getMessageOrBuilder();
+        } else {
+          return outputDocumentId_ == null
+              ? com.google.cloud.documentai.v1beta3.DocumentId.getDefaultInstance()
+              : outputDocumentId_;
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * The document id of imported document if it was successful, otherwise
+       * empty.
+       * 

+       *
+       * .google.cloud.documentai.v1beta3.DocumentId output_document_id = 4;
+       */
+      private com.google.protobuf.SingleFieldBuilderV3<
+              com.google.cloud.documentai.v1beta3.DocumentId,
+              com.google.cloud.documentai.v1beta3.DocumentId.Builder,
+              com.google.cloud.documentai.v1beta3.DocumentIdOrBuilder>
+          getOutputDocumentIdFieldBuilder() {
+        if (outputDocumentIdBuilder_ == null) {
+          outputDocumentIdBuilder_ =
+              new com.google.protobuf.SingleFieldBuilderV3<
+                  com.google.cloud.documentai.v1beta3.DocumentId,
+                  com.google.cloud.documentai.v1beta3.DocumentId.Builder,
+                  com.google.cloud.documentai.v1beta3.DocumentIdOrBuilder>(
+                  getOutputDocumentId(), getParentForChildren(), isClean());
+          outputDocumentId_ = null;
+        }
+        return outputDocumentIdBuilder_;
+      }
+
+      @java.lang.Override
+      public final Builder setUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.setUnknownFields(unknownFields);
+      }
+
+      @java.lang.Override
+      public final Builder mergeUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.mergeUnknownFields(unknownFields);
+      }
+
+      // @@protoc_insertion_point(builder_scope:google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus)
+    }
+
+    // @@protoc_insertion_point(class_scope:google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus)
+    private static final com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata
+            .IndividualImportStatus
+        DEFAULT_INSTANCE;
+
+    static {
+      DEFAULT_INSTANCE =
+          new com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus();
+    }
+
+    public static com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus
+        getDefaultInstance() {
+      return DEFAULT_INSTANCE;
+    }
+
+    private static final com.google.protobuf.Parser PARSER =
+        new com.google.protobuf.AbstractParser() {
+          @java.lang.Override
+          public IndividualImportStatus parsePartialFrom(
+              com.google.protobuf.CodedInputStream input,
+              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+              throws com.google.protobuf.InvalidProtocolBufferException {
+            Builder builder = newBuilder();
+            try {
+              builder.mergeFrom(input, extensionRegistry);
+            } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+              throw e.setUnfinishedMessage(builder.buildPartial());
+            } catch (com.google.protobuf.UninitializedMessageException e) {
+              throw e.asInvalidProtocolBufferException()
+                  .setUnfinishedMessage(builder.buildPartial());
+            } catch (java.io.IOException e) {
+              throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                  .setUnfinishedMessage(builder.buildPartial());
+            }
+            return builder.buildPartial();
+          }
+        };
+
+    public static com.google.protobuf.Parser parser() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Parser getParserForType() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus
+        getDefaultInstanceForType() {
+      return DEFAULT_INSTANCE;
+    }
+  }
+
+  public interface ImportConfigValidationResultOrBuilder
+      extends
+      // @@protoc_insertion_point(interface_extends:google.cloud.documentai.v1beta3.ImportDocumentsMetadata.ImportConfigValidationResult)
+      com.google.protobuf.MessageOrBuilder {
+
+    /**
+     *
+     *
+     * 
+     * The source Cloud Storage URI specified in the import config.
+     * 

+     *
+     * string input_gcs_source = 1;
+     *
+     * @return The inputGcsSource.
+     */
+    java.lang.String getInputGcsSource();
+    /**
+     *
+     *
+     * 
+     * The source Cloud Storage URI specified in the import config.
+     * 

+     *
+     * string input_gcs_source = 1;
+     *
+     * @return The bytes for inputGcsSource.
+     */
+    com.google.protobuf.ByteString getInputGcsSourceBytes();
+
+    /**
+     *
+     *
+     * 
+     * The validation status of import config.
+     * 

+     *
+     * .google.rpc.Status status = 2;
+     *
+     * @return Whether the status field is set.
+     */
+    boolean hasStatus();
+    /**
+     *
+     *
+     * 
+     * The validation status of import config.
+     * 

+     *
+     * .google.rpc.Status status = 2;
+     *
+     * @return The status.
+     */
+    com.google.rpc.Status getStatus();
+    /**
+     *
+     *
+     * 
+     * The validation status of import config.
+     * 

+     *
+     * .google.rpc.Status status = 2;
+     */
+    com.google.rpc.StatusOrBuilder getStatusOrBuilder();
+  }
+  /**
+   *
+   *
+   * 
+   * The validation status of each import config. Status is set to errors if
+   * there is no documents to import in the import_config, or OK if the
+   * operation will try to proceed at least one document.
+   * 

+   *
+   * Protobuf type {@code
+   * google.cloud.documentai.v1beta3.ImportDocumentsMetadata.ImportConfigValidationResult}
+   */
+  public static final class ImportConfigValidationResult
+      extends com.google.protobuf.GeneratedMessageV3
+      implements
+      // @@protoc_insertion_point(message_implements:google.cloud.documentai.v1beta3.ImportDocumentsMetadata.ImportConfigValidationResult)
+      ImportConfigValidationResultOrBuilder {
+    private static final long serialVersionUID = 0L;
+    // Use ImportConfigValidationResult.newBuilder() to construct.
+    private ImportConfigValidationResult(
+        com.google.protobuf.GeneratedMessageV3.Builder builder) {
+      super(builder);
+    }
+
+    private ImportConfigValidationResult() {
+      inputGcsSource_ = "";
+    }
+
+    @java.lang.Override
+    @SuppressWarnings({"unused"})
+    protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+      return new ImportConfigValidationResult();
+    }
+
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.documentai.v1beta3.DocumentAiDocumentService
+          .internal_static_google_cloud_documentai_v1beta3_ImportDocumentsMetadata_ImportConfigValidationResult_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.documentai.v1beta3.DocumentAiDocumentService
+          .internal_static_google_cloud_documentai_v1beta3_ImportDocumentsMetadata_ImportConfigValidationResult_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata
+                  .ImportConfigValidationResult.class,
+              com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata
+                  .ImportConfigValidationResult.Builder.class);
+    }
+
+    public static final int INPUT_GCS_SOURCE_FIELD_NUMBER = 1;
+
+    @SuppressWarnings("serial")
+    private volatile java.lang.Object inputGcsSource_ = "";
+    /**
+     *
+     *
+     * 
+     * The source Cloud Storage URI specified in the import config.
+     * 

+     *
+     * string input_gcs_source = 1;
+     *
+     * @return The inputGcsSource.
+     */
+    @java.lang.Override
+    public java.lang.String getInputGcsSource() {
+      java.lang.Object ref = inputGcsSource_;
+      if (ref instanceof java.lang.String) {
+        return (java.lang.String) ref;
+      } else {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        inputGcsSource_ = s;
+        return s;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * The source Cloud Storage URI specified in the import config.
+     * 

+     *
+     * string input_gcs_source = 1;
+     *
+     * @return The bytes for inputGcsSource.
+     */
+    @java.lang.Override
+    public com.google.protobuf.ByteString getInputGcsSourceBytes() {
+      java.lang.Object ref = inputGcsSource_;
+      if (ref instanceof java.lang.String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        inputGcsSource_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+
+    public static final int STATUS_FIELD_NUMBER = 2;
+    private com.google.rpc.Status status_;
+    /**
+     *
+     *
+     * 
+     * The validation status of import config.
+     * 

+     *
+     * .google.rpc.Status status = 2;
+     *
+     * @return Whether the status field is set.
+     */
+    @java.lang.Override
+    public boolean hasStatus() {
+      return status_ != null;
+    }
+    /**
+     *
+     *
+     * 
+     * The validation status of import config.
+     * 

+     *
+     * .google.rpc.Status status = 2;
+     *
+     * @return The status.
+     */
+    @java.lang.Override
+    public com.google.rpc.Status getStatus() {
+      return status_ == null ? com.google.rpc.Status.getDefaultInstance() : status_;
+    }
+    /**
+     *
+     *
+     * 
+     * The validation status of import config.
+     * 

+     *
+     * .google.rpc.Status status = 2;
+     */
+    @java.lang.Override
+    public com.google.rpc.StatusOrBuilder getStatusOrBuilder() {
+      return status_ == null ? com.google.rpc.Status.getDefaultInstance() : status_;
+    }
+
+    private byte memoizedIsInitialized = -1;
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      byte isInitialized = memoizedIsInitialized;
+      if (isInitialized == 1) return true;
+      if (isInitialized == 0) return false;
+
+      memoizedIsInitialized = 1;
+      return true;
+    }
+
+    @java.lang.Override
+    public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(inputGcsSource_)) {
+        com.google.protobuf.GeneratedMessageV3.writeString(output, 1, inputGcsSource_);
+      }
+      if (status_ != null) {
+        output.writeMessage(2, getStatus());
+      }
+      getUnknownFields().writeTo(output);
+    }
+
+    @java.lang.Override
+    public int getSerializedSize() {
+      int size = memoizedSize;
+      if (size != -1) return size;
+
+      size = 0;
+      if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(inputGcsSource_)) {
+        size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, inputGcsSource_);
+      }
+      if (status_ != null) {
+        size += com.google.protobuf.CodedOutputStream.computeMessageSize(2, getStatus());
+      }
+      size += getUnknownFields().getSerializedSize();
+      memoizedSize = size;
+      return size;
+    }
+
+    @java.lang.Override
+    public boolean equals(final java.lang.Object obj) {
+      if (obj == this) {
+        return true;
+      }
+      if (!(obj
+          instanceof
+          com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata
+              .ImportConfigValidationResult)) {
+        return super.equals(obj);
+      }
+      com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.ImportConfigValidationResult
+          other =
+              (com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata
+                      .ImportConfigValidationResult)
+                  obj;
+
+      if (!getInputGcsSource().equals(other.getInputGcsSource())) return false;
+      if (hasStatus() != other.hasStatus()) return false;
+      if (hasStatus()) {
+        if (!getStatus().equals(other.getStatus())) return false;
+      }
+      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
+      return true;
+    }
+
+    @java.lang.Override
+    public int hashCode() {
+      if (memoizedHashCode != 0) {
+        return memoizedHashCode;
+      }
+      int hash = 41;
+      hash = (19 * hash) + getDescriptor().hashCode();
+      hash = (37 * hash) + INPUT_GCS_SOURCE_FIELD_NUMBER;
+      hash = (53 * hash) + getInputGcsSource().hashCode();
+      if (hasStatus()) {
+        hash = (37 * hash) + STATUS_FIELD_NUMBER;
+        hash = (53 * hash) + getStatus().hashCode();
+      }
+      hash = (29 * hash) + getUnknownFields().hashCode();
+      memoizedHashCode = hash;
+      return hash;
+    }
+
+    public static com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata
+            .ImportConfigValidationResult
+        parseFrom(java.nio.ByteBuffer data)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata
+            .ImportConfigValidationResult
+        parseFrom(
+            java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata
+            .ImportConfigValidationResult
+        parseFrom(com.google.protobuf.ByteString data)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata
+            .ImportConfigValidationResult
+        parseFrom(
+            com.google.protobuf.ByteString data,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata
+            .ImportConfigValidationResult
+        parseFrom(byte[] data) throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata
+            .ImportConfigValidationResult
+        parseFrom(byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata
+            .ImportConfigValidationResult
+        parseFrom(java.io.InputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata
+            .ImportConfigValidationResult
+        parseFrom(
+            java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    public static com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata
+            .ImportConfigValidationResult
+        parseDelimitedFrom(java.io.InputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata
+            .ImportConfigValidationResult
+        parseDelimitedFrom(
+            java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    public static com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata
+            .ImportConfigValidationResult
+        parseFrom(com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata
+            .ImportConfigValidationResult
+        parseFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    @java.lang.Override
+    public Builder newBuilderForType() {
+      return newBuilder();
+    }
+
+    public static Builder newBuilder() {
+      return DEFAULT_INSTANCE.toBuilder();
+    }
+
+    public static Builder newBuilder(
+        com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.ImportConfigValidationResult
+            prototype) {
+      return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+    }
+
+    @java.lang.Override
+    public Builder toBuilder() {
+      return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+    }
+
+    @java.lang.Override
+    protected Builder newBuilderForType(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      Builder builder = new Builder(parent);
+      return builder;
+    }
+    /**
+     *
+     *
+     * 
+     * The validation status of each import config. Status is set to errors if
+     * there is no documents to import in the import_config, or OK if the
+     * operation will try to proceed at least one document.
+     * 

+     *
+     * Protobuf type {@code
+     * google.cloud.documentai.v1beta3.ImportDocumentsMetadata.ImportConfigValidationResult}
+     */
+    public static final class Builder
+        extends com.google.protobuf.GeneratedMessageV3.Builder
+        implements
+        // @@protoc_insertion_point(builder_implements:google.cloud.documentai.v1beta3.ImportDocumentsMetadata.ImportConfigValidationResult)
+        com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata
+            .ImportConfigValidationResultOrBuilder {
+      public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+        return com.google.cloud.documentai.v1beta3.DocumentAiDocumentService
+            .internal_static_google_cloud_documentai_v1beta3_ImportDocumentsMetadata_ImportConfigValidationResult_descriptor;
+      }
+
+      @java.lang.Override
+      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+          internalGetFieldAccessorTable() {
+        return com.google.cloud.documentai.v1beta3.DocumentAiDocumentService
+            .internal_static_google_cloud_documentai_v1beta3_ImportDocumentsMetadata_ImportConfigValidationResult_fieldAccessorTable
+            .ensureFieldAccessorsInitialized(
+                com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata
+                    .ImportConfigValidationResult.class,
+                com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata
+                    .ImportConfigValidationResult.Builder.class);
+      }
+
+      // Construct using
+      // com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.ImportConfigValidationResult.newBuilder()
+      private Builder() {}
+
+      private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+        super(parent);
+      }
+
+      @java.lang.Override
+      public Builder clear() {
+        super.clear();
+        bitField0_ = 0;
+        inputGcsSource_ = "";
+        status_ = null;
+        if (statusBuilder_ != null) {
+          statusBuilder_.dispose();
+          statusBuilder_ = null;
+        }
+        return this;
+      }
+
+      @java.lang.Override
+      public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+        return com.google.cloud.documentai.v1beta3.DocumentAiDocumentService
+            .internal_static_google_cloud_documentai_v1beta3_ImportDocumentsMetadata_ImportConfigValidationResult_descriptor;
+      }
+
+      @java.lang.Override
+      public com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata
+              .ImportConfigValidationResult
+          getDefaultInstanceForType() {
+        return com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata
+            .ImportConfigValidationResult.getDefaultInstance();
+      }
+
+      @java.lang.Override
+      public com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata
+              .ImportConfigValidationResult
+          build() {
+        com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.ImportConfigValidationResult
+            result = buildPartial();
+        if (!result.isInitialized()) {
+          throw newUninitializedMessageException(result);
+        }
+        return result;
+      }
+
+      @java.lang.Override
+      public com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata
+              .ImportConfigValidationResult
+          buildPartial() {
+        com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.ImportConfigValidationResult
+            result =
+                new com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata
+                    .ImportConfigValidationResult(this);
+        if (bitField0_ != 0) {
+          buildPartial0(result);
+        }
+        onBuilt();
+        return result;
+      }
+
+      private void buildPartial0(
+          com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.ImportConfigValidationResult
+              result) {
+        int from_bitField0_ = bitField0_;
+        if (((from_bitField0_ & 0x00000001) != 0)) {
+          result.inputGcsSource_ = inputGcsSource_;
+        }
+        if (((from_bitField0_ & 0x00000002) != 0)) {
+          result.status_ = statusBuilder_ == null ? status_ : statusBuilder_.build();
+        }
+      }
+
+      @java.lang.Override
+      public Builder clone() {
+        return super.clone();
+      }
+
+      @java.lang.Override
+      public Builder setField(
+          com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+        return super.setField(field, value);
+      }
+
+      @java.lang.Override
+      public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+        return super.clearField(field);
+      }
+
+      @java.lang.Override
+      public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+        return super.clearOneof(oneof);
+      }
+
+      @java.lang.Override
+      public Builder setRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field,
+          int index,
+          java.lang.Object value) {
+        return super.setRepeatedField(field, index, value);
+      }
+
+      @java.lang.Override
+      public Builder addRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+        return super.addRepeatedField(field, value);
+      }
+
+      @java.lang.Override
+      public Builder mergeFrom(com.google.protobuf.Message other) {
+        if (other
+            instanceof
+            com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata
+                .ImportConfigValidationResult) {
+          return mergeFrom(
+              (com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata
+                      .ImportConfigValidationResult)
+                  other);
+        } else {
+          super.mergeFrom(other);
+          return this;
+        }
+      }
+
+      public Builder mergeFrom(
+          com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.ImportConfigValidationResult
+              other) {
+        if (other
+            == com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata
+                .ImportConfigValidationResult.getDefaultInstance()) return this;
+        if (!other.getInputGcsSource().isEmpty()) {
+          inputGcsSource_ = other.inputGcsSource_;
+          bitField0_ |= 0x00000001;
+          onChanged();
+        }
+        if (other.hasStatus()) {
+          mergeStatus(other.getStatus());
+        }
+        this.mergeUnknownFields(other.getUnknownFields());
+        onChanged();
+        return this;
+      }
+
+      @java.lang.Override
+      public final boolean isInitialized() {
+        return true;
+      }
+
+      @java.lang.Override
+      public Builder mergeFrom(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+        if (extensionRegistry == null) {
+          throw new java.lang.NullPointerException();
+        }
+        try {
+          boolean done = false;
+          while (!done) {
+            int tag = input.readTag();
+            switch (tag) {
+              case 0:
+                done = true;
+                break;
+              case 10:
+                {
+                  inputGcsSource_ = input.readStringRequireUtf8();
+                  bitField0_ |= 0x00000001;
+                  break;
+                } // case 10
+              case 18:
+                {
+                  input.readMessage(getStatusFieldBuilder().getBuilder(), extensionRegistry);
+                  bitField0_ |= 0x00000002;
+                  break;
+                } // case 18
+              default:
+                {
+                  if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                    done = true; // was an endgroup tag
+                  }
+                  break;
+                } // default:
+            } // switch (tag)
+          } // while (!done)
+        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          throw e.unwrapIOException();
+        } finally {
+          onChanged();
+        } // finally
+        return this;
+      }
+
+      private int bitField0_;
+
+      private java.lang.Object inputGcsSource_ = "";
+      /**
+       *
+       *
+       * 
+       * The source Cloud Storage URI specified in the import config.
+       * 

+       *
+       * string input_gcs_source = 1;
+       *
+       * @return The inputGcsSource.
+       */
+      public java.lang.String getInputGcsSource() {
+        java.lang.Object ref = inputGcsSource_;
+        if (!(ref instanceof java.lang.String)) {
+          com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+          java.lang.String s = bs.toStringUtf8();
+          inputGcsSource_ = s;
+          return s;
+        } else {
+          return (java.lang.String) ref;
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * The source Cloud Storage URI specified in the import config.
+       * 

+       *
+       * string input_gcs_source = 1;
+       *
+       * @return The bytes for inputGcsSource.
+       */
+      public com.google.protobuf.ByteString getInputGcsSourceBytes() {
+        java.lang.Object ref = inputGcsSource_;
+        if (ref instanceof String) {
+          com.google.protobuf.ByteString b =
+              com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+          inputGcsSource_ = b;
+          return b;
+        } else {
+          return (com.google.protobuf.ByteString) ref;
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * The source Cloud Storage URI specified in the import config.
+       * 

+       *
+       * string input_gcs_source = 1;
+       *
+       * @param value The inputGcsSource to set.
+       * @return This builder for chaining.
+       */
+      public Builder setInputGcsSource(java.lang.String value) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        inputGcsSource_ = value;
+        bitField0_ |= 0x00000001;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * The source Cloud Storage URI specified in the import config.
+       * 

+       *
+       * string input_gcs_source = 1;
+       *
+       * @return This builder for chaining.
+       */
+      public Builder clearInputGcsSource() {
+        inputGcsSource_ = getDefaultInstance().getInputGcsSource();
+        bitField0_ = (bitField0_ & ~0x00000001);
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * The source Cloud Storage URI specified in the import config.
+       * 

+       *
+       * string input_gcs_source = 1;
+       *
+       * @param value The bytes for inputGcsSource to set.
+       * @return This builder for chaining.
+       */
+      public Builder setInputGcsSourceBytes(com.google.protobuf.ByteString value) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        checkByteStringIsUtf8(value);
+        inputGcsSource_ = value;
+        bitField0_ |= 0x00000001;
+        onChanged();
+        return this;
+      }
+
+      private com.google.rpc.Status status_;
+      private com.google.protobuf.SingleFieldBuilderV3<
+              com.google.rpc.Status, com.google.rpc.Status.Builder, com.google.rpc.StatusOrBuilder>
+          statusBuilder_;
+      /**
+       *
+       *
+       * 
+       * The validation status of import config.
+       * 

+       *
+       * .google.rpc.Status status = 2;
+       *
+       * @return Whether the status field is set.
+       */
+      public boolean hasStatus() {
+        return ((bitField0_ & 0x00000002) != 0);
+      }
+      /**
+       *
+       *
+       * 
+       * The validation status of import config.
+       * 

+       *
+       * .google.rpc.Status status = 2;
+       *
+       * @return The status.
+       */
+      public com.google.rpc.Status getStatus() {
+        if (statusBuilder_ == null) {
+          return status_ == null ? com.google.rpc.Status.getDefaultInstance() : status_;
+        } else {
+          return statusBuilder_.getMessage();
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * The validation status of import config.
+       * 

+       *
+       * .google.rpc.Status status = 2;
+       */
+      public Builder setStatus(com.google.rpc.Status value) {
+        if (statusBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          status_ = value;
+        } else {
+          statusBuilder_.setMessage(value);
+        }
+        bitField0_ |= 0x00000002;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * The validation status of import config.
+       * 

+       *
+       * .google.rpc.Status status = 2;
+       */
+      public Builder setStatus(com.google.rpc.Status.Builder builderForValue) {
+        if (statusBuilder_ == null) {
+          status_ = builderForValue.build();
+        } else {
+          statusBuilder_.setMessage(builderForValue.build());
+        }
+        bitField0_ |= 0x00000002;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * The validation status of import config.
+       * 

+       *
+       * .google.rpc.Status status = 2;
+       */
+      public Builder mergeStatus(com.google.rpc.Status value) {
+        if (statusBuilder_ == null) {
+          if (((bitField0_ & 0x00000002) != 0)
+              && status_ != null
+              && status_ != com.google.rpc.Status.getDefaultInstance()) {
+            getStatusBuilder().mergeFrom(value);
+          } else {
+            status_ = value;
+          }
+        } else {
+          statusBuilder_.mergeFrom(value);
+        }
+        bitField0_ |= 0x00000002;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * The validation status of import config.
+       * 

+       *
+       * .google.rpc.Status status = 2;
+       */
+      public Builder clearStatus() {
+        bitField0_ = (bitField0_ & ~0x00000002);
+        status_ = null;
+        if (statusBuilder_ != null) {
+          statusBuilder_.dispose();
+          statusBuilder_ = null;
+        }
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * The validation status of import config.
+       * 

+       *
+       * .google.rpc.Status status = 2;
+       */
+      public com.google.rpc.Status.Builder getStatusBuilder() {
+        bitField0_ |= 0x00000002;
+        onChanged();
+        return getStatusFieldBuilder().getBuilder();
+      }
+      /**
+       *
+       *
+       * 
+       * The validation status of import config.
+       * 

+       *
+       * .google.rpc.Status status = 2;
+       */
+      public com.google.rpc.StatusOrBuilder getStatusOrBuilder() {
+        if (statusBuilder_ != null) {
+          return statusBuilder_.getMessageOrBuilder();
+        } else {
+          return status_ == null ? com.google.rpc.Status.getDefaultInstance() : status_;
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * The validation status of import config.
+       * 

+       *
+       * .google.rpc.Status status = 2;
+       */
+      private com.google.protobuf.SingleFieldBuilderV3<
+              com.google.rpc.Status, com.google.rpc.Status.Builder, com.google.rpc.StatusOrBuilder>
+          getStatusFieldBuilder() {
+        if (statusBuilder_ == null) {
+          statusBuilder_ =
+              new com.google.protobuf.SingleFieldBuilderV3<
+                  com.google.rpc.Status,
+                  com.google.rpc.Status.Builder,
+                  com.google.rpc.StatusOrBuilder>(getStatus(), getParentForChildren(), isClean());
+          status_ = null;
+        }
+        return statusBuilder_;
+      }
+
+      @java.lang.Override
+      public final Builder setUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.setUnknownFields(unknownFields);
+      }
+
+      @java.lang.Override
+      public final Builder mergeUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.mergeUnknownFields(unknownFields);
+      }
+
+      // @@protoc_insertion_point(builder_scope:google.cloud.documentai.v1beta3.ImportDocumentsMetadata.ImportConfigValidationResult)
+    }
+
+    // @@protoc_insertion_point(class_scope:google.cloud.documentai.v1beta3.ImportDocumentsMetadata.ImportConfigValidationResult)
+    private static final com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata
+            .ImportConfigValidationResult
+        DEFAULT_INSTANCE;
+
+    static {
+      DEFAULT_INSTANCE =
+          new com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata
+              .ImportConfigValidationResult();
+    }
+
+    public static com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata
+            .ImportConfigValidationResult
+        getDefaultInstance() {
+      return DEFAULT_INSTANCE;
+    }
+
+    private static final com.google.protobuf.Parser PARSER =
+        new com.google.protobuf.AbstractParser() {
+          @java.lang.Override
+          public ImportConfigValidationResult parsePartialFrom(
+              com.google.protobuf.CodedInputStream input,
+              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+              throws com.google.protobuf.InvalidProtocolBufferException {
+            Builder builder = newBuilder();
+            try {
+              builder.mergeFrom(input, extensionRegistry);
+            } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+              throw e.setUnfinishedMessage(builder.buildPartial());
+            } catch (com.google.protobuf.UninitializedMessageException e) {
+              throw e.asInvalidProtocolBufferException()
+                  .setUnfinishedMessage(builder.buildPartial());
+            } catch (java.io.IOException e) {
+              throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                  .setUnfinishedMessage(builder.buildPartial());
+            }
+            return builder.buildPartial();
+          }
+        };
+
+    public static com.google.protobuf.Parser parser() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Parser getParserForType() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.ImportConfigValidationResult
+        getDefaultInstanceForType() {
+      return DEFAULT_INSTANCE;
+    }
+  }
+
+  public static final int COMMON_METADATA_FIELD_NUMBER = 1;
+  private com.google.cloud.documentai.v1beta3.CommonOperationMetadata commonMetadata_;
+  /**
+   *
+   *
+   * 
+   * The basic metadata of the long running operation.
+   * 

+   *
+   * .google.cloud.documentai.v1beta3.CommonOperationMetadata common_metadata = 1;
+   *
+   * @return Whether the commonMetadata field is set.
+   */
+  @java.lang.Override
+  public boolean hasCommonMetadata() {
+    return commonMetadata_ != null;
+  }
+  /**
+   *
+   *
+   * 
+   * The basic metadata of the long running operation.
+   * 

+   *
+   * .google.cloud.documentai.v1beta3.CommonOperationMetadata common_metadata = 1;
+   *
+   * @return The commonMetadata.
+   */
+  @java.lang.Override
+  public com.google.cloud.documentai.v1beta3.CommonOperationMetadata getCommonMetadata() {
+    return commonMetadata_ == null
+        ? com.google.cloud.documentai.v1beta3.CommonOperationMetadata.getDefaultInstance()
+        : commonMetadata_;
+  }
+  /**
+   *
+   *
+   * 
+   * The basic metadata of the long running operation.
+   * 

+   *
+   * .google.cloud.documentai.v1beta3.CommonOperationMetadata common_metadata = 1;
+   */
+  @java.lang.Override
+  public com.google.cloud.documentai.v1beta3.CommonOperationMetadataOrBuilder
+      getCommonMetadataOrBuilder() {
+    return commonMetadata_ == null
+        ? com.google.cloud.documentai.v1beta3.CommonOperationMetadata.getDefaultInstance()
+        : commonMetadata_;
+  }
+
+  public static final int INDIVIDUAL_IMPORT_STATUSES_FIELD_NUMBER = 2;
+
+  @SuppressWarnings("serial")
+  private java.util.List<
+          com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus>
+      individualImportStatuses_;
+  /**
+   *
+   *
+   * 
+   * The list of response details of each document.
+   * 

+   *
+   * 
+   * repeated .google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus individual_import_statuses = 2;
+   * 
+   */
+  @java.lang.Override
+  public java.util.List<
+          com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus>
+      getIndividualImportStatusesList() {
+    return individualImportStatuses_;
+  }
+  /**
+   *
+   *
+   * 
+   * The list of response details of each document.
+   * 

+   *
+   * 
+   * repeated .google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus individual_import_statuses = 2;
+   * 
+   */
+  @java.lang.Override
+  public java.util.List<
+          ? extends
+              com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata
+                  .IndividualImportStatusOrBuilder>
+      getIndividualImportStatusesOrBuilderList() {
+    return individualImportStatuses_;
+  }
+  /**
+   *
+   *
+   * 
+   * The list of response details of each document.
+   * 

+   *
+   * 
+   * repeated .google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus individual_import_statuses = 2;
+   * 
+   */
+  @java.lang.Override
+  public int getIndividualImportStatusesCount() {
+    return individualImportStatuses_.size();
+  }
+  /**
+   *
+   *
+   * 
+   * The list of response details of each document.
+   * 

+   *
+   * 
+   * repeated .google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus individual_import_statuses = 2;
+   * 
+   */
+  @java.lang.Override
+  public com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus
+      getIndividualImportStatuses(int index) {
+    return individualImportStatuses_.get(index);
+  }
+  /**
+   *
+   *
+   * 
+   * The list of response details of each document.
+   * 

+   *
+   * 
+   * repeated .google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus individual_import_statuses = 2;
+   * 
+   */
+  @java.lang.Override
+  public com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatusOrBuilder
+      getIndividualImportStatusesOrBuilder(int index) {
+    return individualImportStatuses_.get(index);
+  }
+
+  public static final int IMPORT_CONFIG_VALIDATION_RESULTS_FIELD_NUMBER = 4;
+
+  @SuppressWarnings("serial")
+  private java.util.List<
+          com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.ImportConfigValidationResult>
+      importConfigValidationResults_;
+  /**
+   *
+   *
+   * 
+   * Validation statuses of the batch documents import config.
+   * 

+   *
+   * 
+   * repeated .google.cloud.documentai.v1beta3.ImportDocumentsMetadata.ImportConfigValidationResult import_config_validation_results = 4;
+   * 
+   */
+  @java.lang.Override
+  public java.util.List<
+          com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.ImportConfigValidationResult>
+      getImportConfigValidationResultsList() {
+    return importConfigValidationResults_;
+  }
+  /**
+   *
+   *
+   * 
+   * Validation statuses of the batch documents import config.
+   * 

+   *
+   * 
+   * repeated .google.cloud.documentai.v1beta3.ImportDocumentsMetadata.ImportConfigValidationResult import_config_validation_results = 4;
+   * 
+   */
+  @java.lang.Override
+  public java.util.List<
+          ? extends
+              com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata
+                  .ImportConfigValidationResultOrBuilder>
+      getImportConfigValidationResultsOrBuilderList() {
+    return importConfigValidationResults_;
+  }
+  /**
+   *
+   *
+   * 
+   * Validation statuses of the batch documents import config.
+   * 

+   *
+   * 
+   * repeated .google.cloud.documentai.v1beta3.ImportDocumentsMetadata.ImportConfigValidationResult import_config_validation_results = 4;
+   * 
+   */
+  @java.lang.Override
+  public int getImportConfigValidationResultsCount() {
+    return importConfigValidationResults_.size();
+  }
+  /**
+   *
+   *
+   * 
+   * Validation statuses of the batch documents import config.
+   * 

+   *
+   * 
+   * repeated .google.cloud.documentai.v1beta3.ImportDocumentsMetadata.ImportConfigValidationResult import_config_validation_results = 4;
+   * 
+   */
+  @java.lang.Override
+  public com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.ImportConfigValidationResult
+      getImportConfigValidationResults(int index) {
+    return importConfigValidationResults_.get(index);
+  }
+  /**
+   *
+   *
+   * 
+   * Validation statuses of the batch documents import config.
+   * 

+   *
+   * 
+   * repeated .google.cloud.documentai.v1beta3.ImportDocumentsMetadata.ImportConfigValidationResult import_config_validation_results = 4;
+   * 
+   */
+  @java.lang.Override
+  public com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata
+          .ImportConfigValidationResultOrBuilder
+      getImportConfigValidationResultsOrBuilder(int index) {
+    return importConfigValidationResults_.get(index);
+  }
+
+  public static final int TOTAL_DOCUMENT_COUNT_FIELD_NUMBER = 3;
+  private int totalDocumentCount_ = 0;
+  /**
+   *
+   *
+   * 
+   * Total number of the documents that are qualified for importing.
+   * 

+   *
+   * int32 total_document_count = 3;
+   *
+   * @return The totalDocumentCount.
+   */
+  @java.lang.Override
+  public int getTotalDocumentCount() {
+    return totalDocumentCount_;
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (commonMetadata_ != null) {
+      output.writeMessage(1, getCommonMetadata());
+    }
+    for (int i = 0; i < individualImportStatuses_.size(); i++) {
+      output.writeMessage(2, individualImportStatuses_.get(i));
+    }
+    if (totalDocumentCount_ != 0) {
+      output.writeInt32(3, totalDocumentCount_);
+    }
+    for (int i = 0; i < importConfigValidationResults_.size(); i++) {
+      output.writeMessage(4, importConfigValidationResults_.get(i));
+    }
+    getUnknownFields().writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (commonMetadata_ != null) {
+      size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, getCommonMetadata());
+    }
+    for (int i = 0; i < individualImportStatuses_.size(); i++) {
+      size +=
+          com.google.protobuf.CodedOutputStream.computeMessageSize(
+              2, individualImportStatuses_.get(i));
+    }
+    if (totalDocumentCount_ != 0) {
+      size += com.google.protobuf.CodedOutputStream.computeInt32Size(3, totalDocumentCount_);
+    }
+    for (int i = 0; i < importConfigValidationResults_.size(); i++) {
+      size +=
+          com.google.protobuf.CodedOutputStream.computeMessageSize(
+              4, importConfigValidationResults_.get(i));
+    }
+    size += getUnknownFields().getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata other =
+        (com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata) obj;
+
+    if (hasCommonMetadata() != other.hasCommonMetadata()) return false;
+    if (hasCommonMetadata()) {
+      if (!getCommonMetadata().equals(other.getCommonMetadata())) return false;
+    }
+    if (!getIndividualImportStatusesList().equals(other.getIndividualImportStatusesList()))
+      return false;
+    if (!getImportConfigValidationResultsList()
+        .equals(other.getImportConfigValidationResultsList())) return false;
+    if (getTotalDocumentCount() != other.getTotalDocumentCount()) return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    if (hasCommonMetadata()) {
+      hash = (37 * hash) + COMMON_METADATA_FIELD_NUMBER;
+      hash = (53 * hash) + getCommonMetadata().hashCode();
+    }
+    if (getIndividualImportStatusesCount() > 0) {
+      hash = (37 * hash) + INDIVIDUAL_IMPORT_STATUSES_FIELD_NUMBER;
+      hash = (53 * hash) + getIndividualImportStatusesList().hashCode();
+    }
+    if (getImportConfigValidationResultsCount() > 0) {
+      hash = (37 * hash) + IMPORT_CONFIG_VALIDATION_RESULTS_FIELD_NUMBER;
+      hash = (53 * hash) + getImportConfigValidationResultsList().hashCode();
+    }
+    hash = (37 * hash) + TOTAL_DOCUMENT_COUNT_FIELD_NUMBER;
+    hash = (53 * hash) + getTotalDocumentCount();
+    hash = (29 * hash) + getUnknownFields().hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * 
+   * Metadata of the import document operation.
+   * 

+   *
+   * Protobuf type {@code google.cloud.documentai.v1beta3.ImportDocumentsMetadata}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.documentai.v1beta3.ImportDocumentsMetadata)
+      com.google.cloud.documentai.v1beta3.ImportDocumentsMetadataOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.documentai.v1beta3.DocumentAiDocumentService
+          .internal_static_google_cloud_documentai_v1beta3_ImportDocumentsMetadata_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.documentai.v1beta3.DocumentAiDocumentService
+          .internal_static_google_cloud_documentai_v1beta3_ImportDocumentsMetadata_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.class,
+              com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.Builder.class);
+    }
+
+    // Construct using com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.newBuilder()
+    private Builder() {}
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      bitField0_ = 0;
+      commonMetadata_ = null;
+      if (commonMetadataBuilder_ != null) {
+        commonMetadataBuilder_.dispose();
+        commonMetadataBuilder_ = null;
+      }
+      if (individualImportStatusesBuilder_ == null) {
+        individualImportStatuses_ = java.util.Collections.emptyList();
+      } else {
+        individualImportStatuses_ = null;
+        individualImportStatusesBuilder_.clear();
+      }
+      bitField0_ = (bitField0_ & ~0x00000002);
+      if (importConfigValidationResultsBuilder_ == null) {
+        importConfigValidationResults_ = java.util.Collections.emptyList();
+      } else {
+        importConfigValidationResults_ = null;
+        importConfigValidationResultsBuilder_.clear();
+      }
+      bitField0_ = (bitField0_ & ~0x00000004);
+      totalDocumentCount_ = 0;
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.documentai.v1beta3.DocumentAiDocumentService
+          .internal_static_google_cloud_documentai_v1beta3_ImportDocumentsMetadata_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata getDefaultInstanceForType() {
+      return com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata build() {
+      com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata buildPartial() {
+      com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata result =
+          new com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata(this);
+      buildPartialRepeatedFields(result);
+      if (bitField0_ != 0) {
+        buildPartial0(result);
+      }
+      onBuilt();
+      return result;
+    }
+
+    private void buildPartialRepeatedFields(
+        com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata result) {
+      if (individualImportStatusesBuilder_ == null) {
+        if (((bitField0_ & 0x00000002) != 0)) {
+          individualImportStatuses_ =
+              java.util.Collections.unmodifiableList(individualImportStatuses_);
+          bitField0_ = (bitField0_ & ~0x00000002);
+        }
+        result.individualImportStatuses_ = individualImportStatuses_;
+      } else {
+        result.individualImportStatuses_ = individualImportStatusesBuilder_.build();
+      }
+      if (importConfigValidationResultsBuilder_ == null) {
+        if (((bitField0_ & 0x00000004) != 0)) {
+          importConfigValidationResults_ =
+              java.util.Collections.unmodifiableList(importConfigValidationResults_);
+          bitField0_ = (bitField0_ & ~0x00000004);
+        }
+        result.importConfigValidationResults_ = importConfigValidationResults_;
+      } else {
+        result.importConfigValidationResults_ = importConfigValidationResultsBuilder_.build();
+      }
+    }
+
+    private void buildPartial0(com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata result) {
+      int from_bitField0_ = bitField0_;
+      if (((from_bitField0_ & 0x00000001) != 0)) {
+        result.commonMetadata_ =
+            commonMetadataBuilder_ == null ? commonMetadata_ : commonMetadataBuilder_.build();
+      }
+      if (((from_bitField0_ & 0x00000008) != 0)) {
+        result.totalDocumentCount_ = totalDocumentCount_;
+      }
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata) {
+        return mergeFrom((com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata other) {
+      if (other == com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.getDefaultInstance())
+        return this;
+      if (other.hasCommonMetadata()) {
+        mergeCommonMetadata(other.getCommonMetadata());
+      }
+      if (individualImportStatusesBuilder_ == null) {
+        if (!other.individualImportStatuses_.isEmpty()) {
+          if (individualImportStatuses_.isEmpty()) {
+            individualImportStatuses_ = other.individualImportStatuses_;
+            bitField0_ = (bitField0_ & ~0x00000002);
+          } else {
+            ensureIndividualImportStatusesIsMutable();
+            individualImportStatuses_.addAll(other.individualImportStatuses_);
+          }
+          onChanged();
+        }
+      } else {
+        if (!other.individualImportStatuses_.isEmpty()) {
+          if (individualImportStatusesBuilder_.isEmpty()) {
+            individualImportStatusesBuilder_.dispose();
+            individualImportStatusesBuilder_ = null;
+            individualImportStatuses_ = other.individualImportStatuses_;
+            bitField0_ = (bitField0_ & ~0x00000002);
+            individualImportStatusesBuilder_ =
+                com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders
+                    ? getIndividualImportStatusesFieldBuilder()
+                    : null;
+          } else {
+            individualImportStatusesBuilder_.addAllMessages(other.individualImportStatuses_);
+          }
+        }
+      }
+      if (importConfigValidationResultsBuilder_ == null) {
+        if (!other.importConfigValidationResults_.isEmpty()) {
+          if (importConfigValidationResults_.isEmpty()) {
+            importConfigValidationResults_ = other.importConfigValidationResults_;
+            bitField0_ = (bitField0_ & ~0x00000004);
+          } else {
+            ensureImportConfigValidationResultsIsMutable();
+            importConfigValidationResults_.addAll(other.importConfigValidationResults_);
+          }
+          onChanged();
+        }
+      } else {
+        if (!other.importConfigValidationResults_.isEmpty()) {
+          if (importConfigValidationResultsBuilder_.isEmpty()) {
+            importConfigValidationResultsBuilder_.dispose();
+            importConfigValidationResultsBuilder_ = null;
+            importConfigValidationResults_ = other.importConfigValidationResults_;
+            bitField0_ = (bitField0_ & ~0x00000004);
+            importConfigValidationResultsBuilder_ =
+                com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders
+                    ? getImportConfigValidationResultsFieldBuilder()
+                    : null;
+          } else {
+            importConfigValidationResultsBuilder_.addAllMessages(
+                other.importConfigValidationResults_);
+          }
+        }
+      }
+      if (other.getTotalDocumentCount() != 0) {
+        setTotalDocumentCount(other.getTotalDocumentCount());
+      }
+      this.mergeUnknownFields(other.getUnknownFields());
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
+      try {
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                input.readMessage(getCommonMetadataFieldBuilder().getBuilder(), extensionRegistry);
+                bitField0_ |= 0x00000001;
+                break;
+              } // case 10
+            case 18:
+              {
+                com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus
+                    m =
+                        input.readMessage(
+                            com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata
+                                .IndividualImportStatus.parser(),
+                            extensionRegistry);
+                if (individualImportStatusesBuilder_ == null) {
+                  ensureIndividualImportStatusesIsMutable();
+                  individualImportStatuses_.add(m);
+                } else {
+                  individualImportStatusesBuilder_.addMessage(m);
+                }
+                break;
+              } // case 18
+            case 24:
+              {
+                totalDocumentCount_ = input.readInt32();
+                bitField0_ |= 0x00000008;
+                break;
+              } // case 24
+            case 34:
+              {
+                com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata
+                        .ImportConfigValidationResult
+                    m =
+                        input.readMessage(
+                            com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata
+                                .ImportConfigValidationResult.parser(),
+                            extensionRegistry);
+                if (importConfigValidationResultsBuilder_ == null) {
+                  ensureImportConfigValidationResultsIsMutable();
+                  importConfigValidationResults_.add(m);
+                } else {
+                  importConfigValidationResultsBuilder_.addMessage(m);
+                }
+                break;
+              } // case 34
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        throw e.unwrapIOException();
+      } finally {
+        onChanged();
+      } // finally
+      return this;
+    }
+
+    private int bitField0_;
+
+    private com.google.cloud.documentai.v1beta3.CommonOperationMetadata commonMetadata_;
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.documentai.v1beta3.CommonOperationMetadata,
+            com.google.cloud.documentai.v1beta3.CommonOperationMetadata.Builder,
+            com.google.cloud.documentai.v1beta3.CommonOperationMetadataOrBuilder>
+        commonMetadataBuilder_;
+    /**
+     *
+     *
+     * 
+     * The basic metadata of the long running operation.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.CommonOperationMetadata common_metadata = 1;
+     *
+     * @return Whether the commonMetadata field is set.
+     */
+    public boolean hasCommonMetadata() {
+      return ((bitField0_ & 0x00000001) != 0);
+    }
+    /**
+     *
+     *
+     * 
+     * The basic metadata of the long running operation.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.CommonOperationMetadata common_metadata = 1;
+     *
+     * @return The commonMetadata.
+     */
+    public com.google.cloud.documentai.v1beta3.CommonOperationMetadata getCommonMetadata() {
+      if (commonMetadataBuilder_ == null) {
+        return commonMetadata_ == null
+            ? com.google.cloud.documentai.v1beta3.CommonOperationMetadata.getDefaultInstance()
+            : commonMetadata_;
+      } else {
+        return commonMetadataBuilder_.getMessage();
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * The basic metadata of the long running operation.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.CommonOperationMetadata common_metadata = 1;
+     */
+    public Builder setCommonMetadata(
+        com.google.cloud.documentai.v1beta3.CommonOperationMetadata value) {
+      if (commonMetadataBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        commonMetadata_ = value;
+      } else {
+        commonMetadataBuilder_.setMessage(value);
+      }
+      bitField0_ |= 0x00000001;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * The basic metadata of the long running operation.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.CommonOperationMetadata common_metadata = 1;
+     */
+    public Builder setCommonMetadata(
+        com.google.cloud.documentai.v1beta3.CommonOperationMetadata.Builder builderForValue) {
+      if (commonMetadataBuilder_ == null) {
+        commonMetadata_ = builderForValue.build();
+      } else {
+        commonMetadataBuilder_.setMessage(builderForValue.build());
+      }
+      bitField0_ |= 0x00000001;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * The basic metadata of the long running operation.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.CommonOperationMetadata common_metadata = 1;
+     */
+    public Builder mergeCommonMetadata(
+        com.google.cloud.documentai.v1beta3.CommonOperationMetadata value) {
+      if (commonMetadataBuilder_ == null) {
+        if (((bitField0_ & 0x00000001) != 0)
+            && commonMetadata_ != null
+            && commonMetadata_
+                != com.google.cloud.documentai.v1beta3.CommonOperationMetadata
+                    .getDefaultInstance()) {
+          getCommonMetadataBuilder().mergeFrom(value);
+        } else {
+          commonMetadata_ = value;
+        }
+      } else {
+        commonMetadataBuilder_.mergeFrom(value);
+      }
+      bitField0_ |= 0x00000001;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * The basic metadata of the long running operation.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.CommonOperationMetadata common_metadata = 1;
+     */
+    public Builder clearCommonMetadata() {
+      bitField0_ = (bitField0_ & ~0x00000001);
+      commonMetadata_ = null;
+      if (commonMetadataBuilder_ != null) {
+        commonMetadataBuilder_.dispose();
+        commonMetadataBuilder_ = null;
+      }
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * The basic metadata of the long running operation.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.CommonOperationMetadata common_metadata = 1;
+     */
+    public com.google.cloud.documentai.v1beta3.CommonOperationMetadata.Builder
+        getCommonMetadataBuilder() {
+      bitField0_ |= 0x00000001;
+      onChanged();
+      return getCommonMetadataFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * 
+     * The basic metadata of the long running operation.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.CommonOperationMetadata common_metadata = 1;
+     */
+    public com.google.cloud.documentai.v1beta3.CommonOperationMetadataOrBuilder
+        getCommonMetadataOrBuilder() {
+      if (commonMetadataBuilder_ != null) {
+        return commonMetadataBuilder_.getMessageOrBuilder();
+      } else {
+        return commonMetadata_ == null
+            ? com.google.cloud.documentai.v1beta3.CommonOperationMetadata.getDefaultInstance()
+            : commonMetadata_;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * The basic metadata of the long running operation.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.CommonOperationMetadata common_metadata = 1;
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.documentai.v1beta3.CommonOperationMetadata,
+            com.google.cloud.documentai.v1beta3.CommonOperationMetadata.Builder,
+            com.google.cloud.documentai.v1beta3.CommonOperationMetadataOrBuilder>
+        getCommonMetadataFieldBuilder() {
+      if (commonMetadataBuilder_ == null) {
+        commonMetadataBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.documentai.v1beta3.CommonOperationMetadata,
+                com.google.cloud.documentai.v1beta3.CommonOperationMetadata.Builder,
+                com.google.cloud.documentai.v1beta3.CommonOperationMetadataOrBuilder>(
+                getCommonMetadata(), getParentForChildren(), isClean());
+        commonMetadata_ = null;
+      }
+      return commonMetadataBuilder_;
+    }
+
+    private java.util.List<
+            com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus>
+        individualImportStatuses_ = java.util.Collections.emptyList();
+
+    private void ensureIndividualImportStatusesIsMutable() {
+      if (!((bitField0_ & 0x00000002) != 0)) {
+        individualImportStatuses_ =
+            new java.util.ArrayList<
+                com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus>(
+                individualImportStatuses_);
+        bitField0_ |= 0x00000002;
+      }
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus,
+            com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus
+                .Builder,
+            com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata
+                .IndividualImportStatusOrBuilder>
+        individualImportStatusesBuilder_;
+
+    /**
+     *
+     *
+     * 
+     * The list of response details of each document.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus individual_import_statuses = 2;
+     * 
+     */
+    public java.util.List<
+            com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus>
+        getIndividualImportStatusesList() {
+      if (individualImportStatusesBuilder_ == null) {
+        return java.util.Collections.unmodifiableList(individualImportStatuses_);
+      } else {
+        return individualImportStatusesBuilder_.getMessageList();
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * The list of response details of each document.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus individual_import_statuses = 2;
+     * 
+     */
+    public int getIndividualImportStatusesCount() {
+      if (individualImportStatusesBuilder_ == null) {
+        return individualImportStatuses_.size();
+      } else {
+        return individualImportStatusesBuilder_.getCount();
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * The list of response details of each document.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus individual_import_statuses = 2;
+     * 
+     */
+    public com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus
+        getIndividualImportStatuses(int index) {
+      if (individualImportStatusesBuilder_ == null) {
+        return individualImportStatuses_.get(index);
+      } else {
+        return individualImportStatusesBuilder_.getMessage(index);
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * The list of response details of each document.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus individual_import_statuses = 2;
+     * 
+     */
+    public Builder setIndividualImportStatuses(
+        int index,
+        com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus value) {
+      if (individualImportStatusesBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureIndividualImportStatusesIsMutable();
+        individualImportStatuses_.set(index, value);
+        onChanged();
+      } else {
+        individualImportStatusesBuilder_.setMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * The list of response details of each document.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus individual_import_statuses = 2;
+     * 
+     */
+    public Builder setIndividualImportStatuses(
+        int index,
+        com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus.Builder
+            builderForValue) {
+      if (individualImportStatusesBuilder_ == null) {
+        ensureIndividualImportStatusesIsMutable();
+        individualImportStatuses_.set(index, builderForValue.build());
+        onChanged();
+      } else {
+        individualImportStatusesBuilder_.setMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * The list of response details of each document.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus individual_import_statuses = 2;
+     * 
+     */
+    public Builder addIndividualImportStatuses(
+        com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus value) {
+      if (individualImportStatusesBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureIndividualImportStatusesIsMutable();
+        individualImportStatuses_.add(value);
+        onChanged();
+      } else {
+        individualImportStatusesBuilder_.addMessage(value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * The list of response details of each document.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus individual_import_statuses = 2;
+     * 
+     */
+    public Builder addIndividualImportStatuses(
+        int index,
+        com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus value) {
+      if (individualImportStatusesBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureIndividualImportStatusesIsMutable();
+        individualImportStatuses_.add(index, value);
+        onChanged();
+      } else {
+        individualImportStatusesBuilder_.addMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * The list of response details of each document.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus individual_import_statuses = 2;
+     * 
+     */
+    public Builder addIndividualImportStatuses(
+        com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus.Builder
+            builderForValue) {
+      if (individualImportStatusesBuilder_ == null) {
+        ensureIndividualImportStatusesIsMutable();
+        individualImportStatuses_.add(builderForValue.build());
+        onChanged();
+      } else {
+        individualImportStatusesBuilder_.addMessage(builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * The list of response details of each document.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus individual_import_statuses = 2;
+     * 
+     */
+    public Builder addIndividualImportStatuses(
+        int index,
+        com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus.Builder
+            builderForValue) {
+      if (individualImportStatusesBuilder_ == null) {
+        ensureIndividualImportStatusesIsMutable();
+        individualImportStatuses_.add(index, builderForValue.build());
+        onChanged();
+      } else {
+        individualImportStatusesBuilder_.addMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * The list of response details of each document.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus individual_import_statuses = 2;
+     * 
+     */
+    public Builder addAllIndividualImportStatuses(
+        java.lang.Iterable<
+                ? extends
+                    com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata
+                        .IndividualImportStatus>
+            values) {
+      if (individualImportStatusesBuilder_ == null) {
+        ensureIndividualImportStatusesIsMutable();
+        com.google.protobuf.AbstractMessageLite.Builder.addAll(values, individualImportStatuses_);
+        onChanged();
+      } else {
+        individualImportStatusesBuilder_.addAllMessages(values);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * The list of response details of each document.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus individual_import_statuses = 2;
+     * 
+     */
+    public Builder clearIndividualImportStatuses() {
+      if (individualImportStatusesBuilder_ == null) {
+        individualImportStatuses_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000002);
+        onChanged();
+      } else {
+        individualImportStatusesBuilder_.clear();
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * The list of response details of each document.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus individual_import_statuses = 2;
+     * 
+     */
+    public Builder removeIndividualImportStatuses(int index) {
+      if (individualImportStatusesBuilder_ == null) {
+        ensureIndividualImportStatusesIsMutable();
+        individualImportStatuses_.remove(index);
+        onChanged();
+      } else {
+        individualImportStatusesBuilder_.remove(index);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * The list of response details of each document.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus individual_import_statuses = 2;
+     * 
+     */
+    public com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus
+            .Builder
+        getIndividualImportStatusesBuilder(int index) {
+      return getIndividualImportStatusesFieldBuilder().getBuilder(index);
+    }
+    /**
+     *
+     *
+     * 
+     * The list of response details of each document.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus individual_import_statuses = 2;
+     * 
+     */
+    public com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata
+            .IndividualImportStatusOrBuilder
+        getIndividualImportStatusesOrBuilder(int index) {
+      if (individualImportStatusesBuilder_ == null) {
+        return individualImportStatuses_.get(index);
+      } else {
+        return individualImportStatusesBuilder_.getMessageOrBuilder(index);
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * The list of response details of each document.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus individual_import_statuses = 2;
+     * 
+     */
+    public java.util.List<
+            ? extends
+                com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata
+                    .IndividualImportStatusOrBuilder>
+        getIndividualImportStatusesOrBuilderList() {
+      if (individualImportStatusesBuilder_ != null) {
+        return individualImportStatusesBuilder_.getMessageOrBuilderList();
+      } else {
+        return java.util.Collections.unmodifiableList(individualImportStatuses_);
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * The list of response details of each document.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus individual_import_statuses = 2;
+     * 
+     */
+    public com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus
+            .Builder
+        addIndividualImportStatusesBuilder() {
+      return getIndividualImportStatusesFieldBuilder()
+          .addBuilder(
+              com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus
+                  .getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * 
+     * The list of response details of each document.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus individual_import_statuses = 2;
+     * 
+     */
+    public com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus
+            .Builder
+        addIndividualImportStatusesBuilder(int index) {
+      return getIndividualImportStatusesFieldBuilder()
+          .addBuilder(
+              index,
+              com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus
+                  .getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * 
+     * The list of response details of each document.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus individual_import_statuses = 2;
+     * 
+     */
+    public java.util.List<
+            com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus
+                .Builder>
+        getIndividualImportStatusesBuilderList() {
+      return getIndividualImportStatusesFieldBuilder().getBuilderList();
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus,
+            com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus
+                .Builder,
+            com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata
+                .IndividualImportStatusOrBuilder>
+        getIndividualImportStatusesFieldBuilder() {
+      if (individualImportStatusesBuilder_ == null) {
+        individualImportStatusesBuilder_ =
+            new com.google.protobuf.RepeatedFieldBuilderV3<
+                com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus,
+                com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus
+                    .Builder,
+                com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata
+                    .IndividualImportStatusOrBuilder>(
+                individualImportStatuses_,
+                ((bitField0_ & 0x00000002) != 0),
+                getParentForChildren(),
+                isClean());
+        individualImportStatuses_ = null;
+      }
+      return individualImportStatusesBuilder_;
+    }
+
+    private java.util.List<
+            com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata
+                .ImportConfigValidationResult>
+        importConfigValidationResults_ = java.util.Collections.emptyList();
+
+    private void ensureImportConfigValidationResultsIsMutable() {
+      if (!((bitField0_ & 0x00000004) != 0)) {
+        importConfigValidationResults_ =
+            new java.util.ArrayList<
+                com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata
+                    .ImportConfigValidationResult>(importConfigValidationResults_);
+        bitField0_ |= 0x00000004;
+      }
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata
+                .ImportConfigValidationResult,
+            com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.ImportConfigValidationResult
+                .Builder,
+            com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata
+                .ImportConfigValidationResultOrBuilder>
+        importConfigValidationResultsBuilder_;
+
+    /**
+     *
+     *
+     * 
+     * Validation statuses of the batch documents import config.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta3.ImportDocumentsMetadata.ImportConfigValidationResult import_config_validation_results = 4;
+     * 
+     */
+    public java.util.List<
+            com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata
+                .ImportConfigValidationResult>
+        getImportConfigValidationResultsList() {
+      if (importConfigValidationResultsBuilder_ == null) {
+        return java.util.Collections.unmodifiableList(importConfigValidationResults_);
+      } else {
+        return importConfigValidationResultsBuilder_.getMessageList();
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Validation statuses of the batch documents import config.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta3.ImportDocumentsMetadata.ImportConfigValidationResult import_config_validation_results = 4;
+     * 
+     */
+    public int getImportConfigValidationResultsCount() {
+      if (importConfigValidationResultsBuilder_ == null) {
+        return importConfigValidationResults_.size();
+      } else {
+        return importConfigValidationResultsBuilder_.getCount();
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Validation statuses of the batch documents import config.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta3.ImportDocumentsMetadata.ImportConfigValidationResult import_config_validation_results = 4;
+     * 
+     */
+    public com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.ImportConfigValidationResult
+        getImportConfigValidationResults(int index) {
+      if (importConfigValidationResultsBuilder_ == null) {
+        return importConfigValidationResults_.get(index);
+      } else {
+        return importConfigValidationResultsBuilder_.getMessage(index);
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Validation statuses of the batch documents import config.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta3.ImportDocumentsMetadata.ImportConfigValidationResult import_config_validation_results = 4;
+     * 
+     */
+    public Builder setImportConfigValidationResults(
+        int index,
+        com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.ImportConfigValidationResult
+            value) {
+      if (importConfigValidationResultsBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureImportConfigValidationResultsIsMutable();
+        importConfigValidationResults_.set(index, value);
+        onChanged();
+      } else {
+        importConfigValidationResultsBuilder_.setMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Validation statuses of the batch documents import config.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta3.ImportDocumentsMetadata.ImportConfigValidationResult import_config_validation_results = 4;
+     * 
+     */
+    public Builder setImportConfigValidationResults(
+        int index,
+        com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.ImportConfigValidationResult
+                .Builder
+            builderForValue) {
+      if (importConfigValidationResultsBuilder_ == null) {
+        ensureImportConfigValidationResultsIsMutable();
+        importConfigValidationResults_.set(index, builderForValue.build());
+        onChanged();
+      } else {
+        importConfigValidationResultsBuilder_.setMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Validation statuses of the batch documents import config.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta3.ImportDocumentsMetadata.ImportConfigValidationResult import_config_validation_results = 4;
+     * 
+     */
+    public Builder addImportConfigValidationResults(
+        com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.ImportConfigValidationResult
+            value) {
+      if (importConfigValidationResultsBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureImportConfigValidationResultsIsMutable();
+        importConfigValidationResults_.add(value);
+        onChanged();
+      } else {
+        importConfigValidationResultsBuilder_.addMessage(value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Validation statuses of the batch documents import config.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta3.ImportDocumentsMetadata.ImportConfigValidationResult import_config_validation_results = 4;
+     * 
+     */
+    public Builder addImportConfigValidationResults(
+        int index,
+        com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.ImportConfigValidationResult
+            value) {
+      if (importConfigValidationResultsBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureImportConfigValidationResultsIsMutable();
+        importConfigValidationResults_.add(index, value);
+        onChanged();
+      } else {
+        importConfigValidationResultsBuilder_.addMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Validation statuses of the batch documents import config.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta3.ImportDocumentsMetadata.ImportConfigValidationResult import_config_validation_results = 4;
+     * 
+     */
+    public Builder addImportConfigValidationResults(
+        com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.ImportConfigValidationResult
+                .Builder
+            builderForValue) {
+      if (importConfigValidationResultsBuilder_ == null) {
+        ensureImportConfigValidationResultsIsMutable();
+        importConfigValidationResults_.add(builderForValue.build());
+        onChanged();
+      } else {
+        importConfigValidationResultsBuilder_.addMessage(builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Validation statuses of the batch documents import config.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta3.ImportDocumentsMetadata.ImportConfigValidationResult import_config_validation_results = 4;
+     * 
+     */
+    public Builder addImportConfigValidationResults(
+        int index,
+        com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.ImportConfigValidationResult
+                .Builder
+            builderForValue) {
+      if (importConfigValidationResultsBuilder_ == null) {
+        ensureImportConfigValidationResultsIsMutable();
+        importConfigValidationResults_.add(index, builderForValue.build());
+        onChanged();
+      } else {
+        importConfigValidationResultsBuilder_.addMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Validation statuses of the batch documents import config.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta3.ImportDocumentsMetadata.ImportConfigValidationResult import_config_validation_results = 4;
+     * 
+     */
+    public Builder addAllImportConfigValidationResults(
+        java.lang.Iterable<
+                ? extends
+                    com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata
+                        .ImportConfigValidationResult>
+            values) {
+      if (importConfigValidationResultsBuilder_ == null) {
+        ensureImportConfigValidationResultsIsMutable();
+        com.google.protobuf.AbstractMessageLite.Builder.addAll(
+            values, importConfigValidationResults_);
+        onChanged();
+      } else {
+        importConfigValidationResultsBuilder_.addAllMessages(values);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Validation statuses of the batch documents import config.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta3.ImportDocumentsMetadata.ImportConfigValidationResult import_config_validation_results = 4;
+     * 
+     */
+    public Builder clearImportConfigValidationResults() {
+      if (importConfigValidationResultsBuilder_ == null) {
+        importConfigValidationResults_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000004);
+        onChanged();
+      } else {
+        importConfigValidationResultsBuilder_.clear();
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Validation statuses of the batch documents import config.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta3.ImportDocumentsMetadata.ImportConfigValidationResult import_config_validation_results = 4;
+     * 
+     */
+    public Builder removeImportConfigValidationResults(int index) {
+      if (importConfigValidationResultsBuilder_ == null) {
+        ensureImportConfigValidationResultsIsMutable();
+        importConfigValidationResults_.remove(index);
+        onChanged();
+      } else {
+        importConfigValidationResultsBuilder_.remove(index);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Validation statuses of the batch documents import config.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta3.ImportDocumentsMetadata.ImportConfigValidationResult import_config_validation_results = 4;
+     * 
+     */
+    public com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.ImportConfigValidationResult
+            .Builder
+        getImportConfigValidationResultsBuilder(int index) {
+      return getImportConfigValidationResultsFieldBuilder().getBuilder(index);
+    }
+    /**
+     *
+     *
+     * 
+     * Validation statuses of the batch documents import config.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta3.ImportDocumentsMetadata.ImportConfigValidationResult import_config_validation_results = 4;
+     * 
+     */
+    public com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata
+            .ImportConfigValidationResultOrBuilder
+        getImportConfigValidationResultsOrBuilder(int index) {
+      if (importConfigValidationResultsBuilder_ == null) {
+        return importConfigValidationResults_.get(index);
+      } else {
+        return importConfigValidationResultsBuilder_.getMessageOrBuilder(index);
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Validation statuses of the batch documents import config.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta3.ImportDocumentsMetadata.ImportConfigValidationResult import_config_validation_results = 4;
+     * 
+     */
+    public java.util.List<
+            ? extends
+                com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata
+                    .ImportConfigValidationResultOrBuilder>
+        getImportConfigValidationResultsOrBuilderList() {
+      if (importConfigValidationResultsBuilder_ != null) {
+        return importConfigValidationResultsBuilder_.getMessageOrBuilderList();
+      } else {
+        return java.util.Collections.unmodifiableList(importConfigValidationResults_);
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Validation statuses of the batch documents import config.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta3.ImportDocumentsMetadata.ImportConfigValidationResult import_config_validation_results = 4;
+     * 
+     */
+    public com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.ImportConfigValidationResult
+            .Builder
+        addImportConfigValidationResultsBuilder() {
+      return getImportConfigValidationResultsFieldBuilder()
+          .addBuilder(
+              com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata
+                  .ImportConfigValidationResult.getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * 
+     * Validation statuses of the batch documents import config.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta3.ImportDocumentsMetadata.ImportConfigValidationResult import_config_validation_results = 4;
+     * 
+     */
+    public com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.ImportConfigValidationResult
+            .Builder
+        addImportConfigValidationResultsBuilder(int index) {
+      return getImportConfigValidationResultsFieldBuilder()
+          .addBuilder(
+              index,
+              com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata
+                  .ImportConfigValidationResult.getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * 
+     * Validation statuses of the batch documents import config.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta3.ImportDocumentsMetadata.ImportConfigValidationResult import_config_validation_results = 4;
+     * 
+     */
+    public java.util.List<
+            com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.ImportConfigValidationResult
+                .Builder>
+        getImportConfigValidationResultsBuilderList() {
+      return getImportConfigValidationResultsFieldBuilder().getBuilderList();
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata
+                .ImportConfigValidationResult,
+            com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.ImportConfigValidationResult
+                .Builder,
+            com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata
+                .ImportConfigValidationResultOrBuilder>
+        getImportConfigValidationResultsFieldBuilder() {
+      if (importConfigValidationResultsBuilder_ == null) {
+        importConfigValidationResultsBuilder_ =
+            new com.google.protobuf.RepeatedFieldBuilderV3<
+                com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata
+                    .ImportConfigValidationResult,
+                com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata
+                    .ImportConfigValidationResult.Builder,
+                com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata
+                    .ImportConfigValidationResultOrBuilder>(
+                importConfigValidationResults_,
+                ((bitField0_ & 0x00000004) != 0),
+                getParentForChildren(),
+                isClean());
+        importConfigValidationResults_ = null;
+      }
+      return importConfigValidationResultsBuilder_;
+    }
+
+    private int totalDocumentCount_;
+    /**
+     *
+     *
+     * 
+     * Total number of the documents that are qualified for importing.
+     * 

+     *
+     * int32 total_document_count = 3;
+     *
+     * @return The totalDocumentCount.
+     */
+    @java.lang.Override
+    public int getTotalDocumentCount() {
+      return totalDocumentCount_;
+    }
+    /**
+     *
+     *
+     * 
+     * Total number of the documents that are qualified for importing.
+     * 

+     *
+     * int32 total_document_count = 3;
+     *
+     * @param value The totalDocumentCount to set.
+     * @return This builder for chaining.
+     */
+    public Builder setTotalDocumentCount(int value) {
+
+      totalDocumentCount_ = value;
+      bitField0_ |= 0x00000008;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Total number of the documents that are qualified for importing.
+     * 

+     *
+     * int32 total_document_count = 3;
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearTotalDocumentCount() {
+      bitField0_ = (bitField0_ & ~0x00000008);
+      totalDocumentCount_ = 0;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.documentai.v1beta3.ImportDocumentsMetadata)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.documentai.v1beta3.ImportDocumentsMetadata)
+  private static final com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata();
+  }
+
+  public static com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser PARSER =
+      new com.google.protobuf.AbstractParser() {
+        @java.lang.Override
+        public ImportDocumentsMetadata parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
+        }
+      };
+
+  public static com.google.protobuf.Parser parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/ImportDocumentsMetadataOrBuilder.java b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/ImportDocumentsMetadataOrBuilder.java
new file mode 100644
index 000000000000..681ec58729fc
--- /dev/null
+++ b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/ImportDocumentsMetadataOrBuilder.java
@@ -0,0 +1,210 @@
+/*
+ * Copyright 2023 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/documentai/v1beta3/document_service.proto
+
+package com.google.cloud.documentai.v1beta3;
+
+public interface ImportDocumentsMetadataOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.documentai.v1beta3.ImportDocumentsMetadata)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * 
+   * The basic metadata of the long running operation.
+   * 

+   *
+   * .google.cloud.documentai.v1beta3.CommonOperationMetadata common_metadata = 1;
+   *
+   * @return Whether the commonMetadata field is set.
+   */
+  boolean hasCommonMetadata();
+  /**
+   *
+   *
+   * 
+   * The basic metadata of the long running operation.
+   * 

+   *
+   * .google.cloud.documentai.v1beta3.CommonOperationMetadata common_metadata = 1;
+   *
+   * @return The commonMetadata.
+   */
+  com.google.cloud.documentai.v1beta3.CommonOperationMetadata getCommonMetadata();
+  /**
+   *
+   *
+   * 
+   * The basic metadata of the long running operation.
+   * 

+   *
+   * .google.cloud.documentai.v1beta3.CommonOperationMetadata common_metadata = 1;
+   */
+  com.google.cloud.documentai.v1beta3.CommonOperationMetadataOrBuilder getCommonMetadataOrBuilder();
+
+  /**
+   *
+   *
+   * 
+   * The list of response details of each document.
+   * 

+   *
+   * 
+   * repeated .google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus individual_import_statuses = 2;
+   * 
+   */
+  java.util.List
+      getIndividualImportStatusesList();
+  /**
+   *
+   *
+   * 
+   * The list of response details of each document.
+   * 

+   *
+   * 
+   * repeated .google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus individual_import_statuses = 2;
+   * 
+   */
+  com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus
+      getIndividualImportStatuses(int index);
+  /**
+   *
+   *
+   * 
+   * The list of response details of each document.
+   * 

+   *
+   * 
+   * repeated .google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus individual_import_statuses = 2;
+   * 
+   */
+  int getIndividualImportStatusesCount();
+  /**
+   *
+   *
+   * 
+   * The list of response details of each document.
+   * 

+   *
+   * 
+   * repeated .google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus individual_import_statuses = 2;
+   * 
+   */
+  java.util.List<
+          ? extends
+              com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata
+                  .IndividualImportStatusOrBuilder>
+      getIndividualImportStatusesOrBuilderList();
+  /**
+   *
+   *
+   * 
+   * The list of response details of each document.
+   * 

+   *
+   * 
+   * repeated .google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatus individual_import_statuses = 2;
+   * 
+   */
+  com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.IndividualImportStatusOrBuilder
+      getIndividualImportStatusesOrBuilder(int index);
+
+  /**
+   *
+   *
+   * 
+   * Validation statuses of the batch documents import config.
+   * 

+   *
+   * 
+   * repeated .google.cloud.documentai.v1beta3.ImportDocumentsMetadata.ImportConfigValidationResult import_config_validation_results = 4;
+   * 
+   */
+  java.util.List<
+          com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.ImportConfigValidationResult>
+      getImportConfigValidationResultsList();
+  /**
+   *
+   *
+   * 
+   * Validation statuses of the batch documents import config.
+   * 

+   *
+   * 
+   * repeated .google.cloud.documentai.v1beta3.ImportDocumentsMetadata.ImportConfigValidationResult import_config_validation_results = 4;
+   * 
+   */
+  com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.ImportConfigValidationResult
+      getImportConfigValidationResults(int index);
+  /**
+   *
+   *
+   * 
+   * Validation statuses of the batch documents import config.
+   * 

+   *
+   * 
+   * repeated .google.cloud.documentai.v1beta3.ImportDocumentsMetadata.ImportConfigValidationResult import_config_validation_results = 4;
+   * 
+   */
+  int getImportConfigValidationResultsCount();
+  /**
+   *
+   *
+   * 
+   * Validation statuses of the batch documents import config.
+   * 

+   *
+   * 
+   * repeated .google.cloud.documentai.v1beta3.ImportDocumentsMetadata.ImportConfigValidationResult import_config_validation_results = 4;
+   * 
+   */
+  java.util.List<
+          ? extends
+              com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata
+                  .ImportConfigValidationResultOrBuilder>
+      getImportConfigValidationResultsOrBuilderList();
+  /**
+   *
+   *
+   * 
+   * Validation statuses of the batch documents import config.
+   * 

+   *
+   * 
+   * repeated .google.cloud.documentai.v1beta3.ImportDocumentsMetadata.ImportConfigValidationResult import_config_validation_results = 4;
+   * 
+   */
+  com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata.ImportConfigValidationResultOrBuilder
+      getImportConfigValidationResultsOrBuilder(int index);
+
+  /**
+   *
+   *
+   * 
+   * Total number of the documents that are qualified for importing.
+   * 

+   *
+   * int32 total_document_count = 3;
+   *
+   * @return The totalDocumentCount.
+   */
+  int getTotalDocumentCount();
+}
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/ImportDocumentsRequest.java b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/ImportDocumentsRequest.java
new file mode 100644
index 000000000000..bb68a7151a94
--- /dev/null
+++ b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/ImportDocumentsRequest.java
@@ -0,0 +1,3462 @@
+/*
+ * Copyright 2023 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/documentai/v1beta3/document_service.proto
+
+package com.google.cloud.documentai.v1beta3;
+
+/** Protobuf type {@code google.cloud.documentai.v1beta3.ImportDocumentsRequest} */
+public final class ImportDocumentsRequest extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.documentai.v1beta3.ImportDocumentsRequest)
+    ImportDocumentsRequestOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use ImportDocumentsRequest.newBuilder() to construct.
+  private ImportDocumentsRequest(com.google.protobuf.GeneratedMessageV3.Builder builder) {
+    super(builder);
+  }
+
+  private ImportDocumentsRequest() {
+    dataset_ = "";
+    batchDocumentsImportConfigs_ = java.util.Collections.emptyList();
+  }
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new ImportDocumentsRequest();
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.documentai.v1beta3.DocumentAiDocumentService
+        .internal_static_google_cloud_documentai_v1beta3_ImportDocumentsRequest_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.documentai.v1beta3.DocumentAiDocumentService
+        .internal_static_google_cloud_documentai_v1beta3_ImportDocumentsRequest_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.class,
+            com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.Builder.class);
+  }
+
+  public interface BatchDocumentsImportConfigOrBuilder
+      extends
+      // @@protoc_insertion_point(interface_extends:google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig)
+      com.google.protobuf.MessageOrBuilder {
+
+    /**
+     *
+     *
+     * 
+     * Target dataset split where the documents must be stored.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.DatasetSplitType dataset_split = 2;
+     *
+     * @return Whether the datasetSplit field is set.
+     */
+    boolean hasDatasetSplit();
+    /**
+     *
+     *
+     * 
+     * Target dataset split where the documents must be stored.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.DatasetSplitType dataset_split = 2;
+     *
+     * @return The enum numeric value on the wire for datasetSplit.
+     */
+    int getDatasetSplitValue();
+    /**
+     *
+     *
+     * 
+     * Target dataset split where the documents must be stored.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.DatasetSplitType dataset_split = 2;
+     *
+     * @return The datasetSplit.
+     */
+    com.google.cloud.documentai.v1beta3.DatasetSplitType getDatasetSplit();
+
+    /**
+     *
+     *
+     * 
+     * If set, documents will be automatically split into training and test
+     * split category with the specified ratio.
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig.AutoSplitConfig auto_split_config = 3;
+     * 
+     *
+     * @return Whether the autoSplitConfig field is set.
+     */
+    boolean hasAutoSplitConfig();
+    /**
+     *
+     *
+     * 
+     * If set, documents will be automatically split into training and test
+     * split category with the specified ratio.
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig.AutoSplitConfig auto_split_config = 3;
+     * 
+     *
+     * @return The autoSplitConfig.
+     */
+    com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig
+            .AutoSplitConfig
+        getAutoSplitConfig();
+    /**
+     *
+     *
+     * 
+     * If set, documents will be automatically split into training and test
+     * split category with the specified ratio.
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig.AutoSplitConfig auto_split_config = 3;
+     * 
+     */
+    com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig
+            .AutoSplitConfigOrBuilder
+        getAutoSplitConfigOrBuilder();
+
+    /**
+     *
+     *
+     * 
+     * The common config to specify a set of documents used as input.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.BatchDocumentsInputConfig batch_input_config = 1;
+     * 
+     *
+     * @return Whether the batchInputConfig field is set.
+     */
+    boolean hasBatchInputConfig();
+    /**
+     *
+     *
+     * 
+     * The common config to specify a set of documents used as input.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.BatchDocumentsInputConfig batch_input_config = 1;
+     * 
+     *
+     * @return The batchInputConfig.
+     */
+    com.google.cloud.documentai.v1beta3.BatchDocumentsInputConfig getBatchInputConfig();
+    /**
+     *
+     *
+     * 
+     * The common config to specify a set of documents used as input.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.BatchDocumentsInputConfig batch_input_config = 1;
+     * 
+     */
+    com.google.cloud.documentai.v1beta3.BatchDocumentsInputConfigOrBuilder
+        getBatchInputConfigOrBuilder();
+
+    com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig
+            .SplitTypeConfigCase
+        getSplitTypeConfigCase();
+  }
+  /**
+   *
+   *
+   * 
+   * Config for importing documents.
+   * Each batch can have its own dataset split type.
+   * 

+   *
+   * Protobuf type {@code
+   * google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig}
+   */
+  public static final class BatchDocumentsImportConfig
+      extends com.google.protobuf.GeneratedMessageV3
+      implements
+      // @@protoc_insertion_point(message_implements:google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig)
+      BatchDocumentsImportConfigOrBuilder {
+    private static final long serialVersionUID = 0L;
+    // Use BatchDocumentsImportConfig.newBuilder() to construct.
+    private BatchDocumentsImportConfig(com.google.protobuf.GeneratedMessageV3.Builder builder) {
+      super(builder);
+    }
+
+    private BatchDocumentsImportConfig() {}
+
+    @java.lang.Override
+    @SuppressWarnings({"unused"})
+    protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+      return new BatchDocumentsImportConfig();
+    }
+
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.documentai.v1beta3.DocumentAiDocumentService
+          .internal_static_google_cloud_documentai_v1beta3_ImportDocumentsRequest_BatchDocumentsImportConfig_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.documentai.v1beta3.DocumentAiDocumentService
+          .internal_static_google_cloud_documentai_v1beta3_ImportDocumentsRequest_BatchDocumentsImportConfig_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig
+                  .class,
+              com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig
+                  .Builder.class);
+    }
+
+    public interface AutoSplitConfigOrBuilder
+        extends
+        // @@protoc_insertion_point(interface_extends:google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig.AutoSplitConfig)
+        com.google.protobuf.MessageOrBuilder {
+
+      /**
+       *
+       *
+       * 
+       * Ratio of training dataset split.
+       * 

+       *
+       * float training_split_ratio = 1;
+       *
+       * @return The trainingSplitRatio.
+       */
+      float getTrainingSplitRatio();
+    }
+    /**
+     *
+     *
+     * 
+     * The config for auto-split.
+     * 

+     *
+     * Protobuf type {@code
+     * google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig.AutoSplitConfig}
+     */
+    public static final class AutoSplitConfig extends com.google.protobuf.GeneratedMessageV3
+        implements
+        // @@protoc_insertion_point(message_implements:google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig.AutoSplitConfig)
+        AutoSplitConfigOrBuilder {
+      private static final long serialVersionUID = 0L;
+      // Use AutoSplitConfig.newBuilder() to construct.
+      private AutoSplitConfig(com.google.protobuf.GeneratedMessageV3.Builder builder) {
+        super(builder);
+      }
+
+      private AutoSplitConfig() {}
+
+      @java.lang.Override
+      @SuppressWarnings({"unused"})
+      protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+        return new AutoSplitConfig();
+      }
+
+      public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+        return com.google.cloud.documentai.v1beta3.DocumentAiDocumentService
+            .internal_static_google_cloud_documentai_v1beta3_ImportDocumentsRequest_BatchDocumentsImportConfig_AutoSplitConfig_descriptor;
+      }
+
+      @java.lang.Override
+      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+          internalGetFieldAccessorTable() {
+        return com.google.cloud.documentai.v1beta3.DocumentAiDocumentService
+            .internal_static_google_cloud_documentai_v1beta3_ImportDocumentsRequest_BatchDocumentsImportConfig_AutoSplitConfig_fieldAccessorTable
+            .ensureFieldAccessorsInitialized(
+                com.google.cloud.documentai.v1beta3.ImportDocumentsRequest
+                    .BatchDocumentsImportConfig.AutoSplitConfig.class,
+                com.google.cloud.documentai.v1beta3.ImportDocumentsRequest
+                    .BatchDocumentsImportConfig.AutoSplitConfig.Builder.class);
+      }
+
+      public static final int TRAINING_SPLIT_RATIO_FIELD_NUMBER = 1;
+      private float trainingSplitRatio_ = 0F;
+      /**
+       *
+       *
+       * 
+       * Ratio of training dataset split.
+       * 

+       *
+       * float training_split_ratio = 1;
+       *
+       * @return The trainingSplitRatio.
+       */
+      @java.lang.Override
+      public float getTrainingSplitRatio() {
+        return trainingSplitRatio_;
+      }
+
+      private byte memoizedIsInitialized = -1;
+
+      @java.lang.Override
+      public final boolean isInitialized() {
+        byte isInitialized = memoizedIsInitialized;
+        if (isInitialized == 1) return true;
+        if (isInitialized == 0) return false;
+
+        memoizedIsInitialized = 1;
+        return true;
+      }
+
+      @java.lang.Override
+      public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+        if (java.lang.Float.floatToRawIntBits(trainingSplitRatio_) != 0) {
+          output.writeFloat(1, trainingSplitRatio_);
+        }
+        getUnknownFields().writeTo(output);
+      }
+
+      @java.lang.Override
+      public int getSerializedSize() {
+        int size = memoizedSize;
+        if (size != -1) return size;
+
+        size = 0;
+        if (java.lang.Float.floatToRawIntBits(trainingSplitRatio_) != 0) {
+          size += com.google.protobuf.CodedOutputStream.computeFloatSize(1, trainingSplitRatio_);
+        }
+        size += getUnknownFields().getSerializedSize();
+        memoizedSize = size;
+        return size;
+      }
+
+      @java.lang.Override
+      public boolean equals(final java.lang.Object obj) {
+        if (obj == this) {
+          return true;
+        }
+        if (!(obj
+            instanceof
+            com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig
+                .AutoSplitConfig)) {
+          return super.equals(obj);
+        }
+        com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig
+                .AutoSplitConfig
+            other =
+                (com.google.cloud.documentai.v1beta3.ImportDocumentsRequest
+                        .BatchDocumentsImportConfig.AutoSplitConfig)
+                    obj;
+
+        if (java.lang.Float.floatToIntBits(getTrainingSplitRatio())
+            != java.lang.Float.floatToIntBits(other.getTrainingSplitRatio())) return false;
+        if (!getUnknownFields().equals(other.getUnknownFields())) return false;
+        return true;
+      }
+
+      @java.lang.Override
+      public int hashCode() {
+        if (memoizedHashCode != 0) {
+          return memoizedHashCode;
+        }
+        int hash = 41;
+        hash = (19 * hash) + getDescriptor().hashCode();
+        hash = (37 * hash) + TRAINING_SPLIT_RATIO_FIELD_NUMBER;
+        hash = (53 * hash) + java.lang.Float.floatToIntBits(getTrainingSplitRatio());
+        hash = (29 * hash) + getUnknownFields().hashCode();
+        memoizedHashCode = hash;
+        return hash;
+      }
+
+      public static com.google.cloud.documentai.v1beta3.ImportDocumentsRequest
+              .BatchDocumentsImportConfig.AutoSplitConfig
+          parseFrom(java.nio.ByteBuffer data)
+              throws com.google.protobuf.InvalidProtocolBufferException {
+        return PARSER.parseFrom(data);
+      }
+
+      public static com.google.cloud.documentai.v1beta3.ImportDocumentsRequest
+              .BatchDocumentsImportConfig.AutoSplitConfig
+          parseFrom(
+              java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+              throws com.google.protobuf.InvalidProtocolBufferException {
+        return PARSER.parseFrom(data, extensionRegistry);
+      }
+
+      public static com.google.cloud.documentai.v1beta3.ImportDocumentsRequest
+              .BatchDocumentsImportConfig.AutoSplitConfig
+          parseFrom(com.google.protobuf.ByteString data)
+              throws com.google.protobuf.InvalidProtocolBufferException {
+        return PARSER.parseFrom(data);
+      }
+
+      public static com.google.cloud.documentai.v1beta3.ImportDocumentsRequest
+              .BatchDocumentsImportConfig.AutoSplitConfig
+          parseFrom(
+              com.google.protobuf.ByteString data,
+              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+              throws com.google.protobuf.InvalidProtocolBufferException {
+        return PARSER.parseFrom(data, extensionRegistry);
+      }
+
+      public static com.google.cloud.documentai.v1beta3.ImportDocumentsRequest
+              .BatchDocumentsImportConfig.AutoSplitConfig
+          parseFrom(byte[] data) throws com.google.protobuf.InvalidProtocolBufferException {
+        return PARSER.parseFrom(data);
+      }
+
+      public static com.google.cloud.documentai.v1beta3.ImportDocumentsRequest
+              .BatchDocumentsImportConfig.AutoSplitConfig
+          parseFrom(byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+              throws com.google.protobuf.InvalidProtocolBufferException {
+        return PARSER.parseFrom(data, extensionRegistry);
+      }
+
+      public static com.google.cloud.documentai.v1beta3.ImportDocumentsRequest
+              .BatchDocumentsImportConfig.AutoSplitConfig
+          parseFrom(java.io.InputStream input) throws java.io.IOException {
+        return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+      }
+
+      public static com.google.cloud.documentai.v1beta3.ImportDocumentsRequest
+              .BatchDocumentsImportConfig.AutoSplitConfig
+          parseFrom(
+              java.io.InputStream input,
+              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+              throws java.io.IOException {
+        return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+            PARSER, input, extensionRegistry);
+      }
+
+      public static com.google.cloud.documentai.v1beta3.ImportDocumentsRequest
+              .BatchDocumentsImportConfig.AutoSplitConfig
+          parseDelimitedFrom(java.io.InputStream input) throws java.io.IOException {
+        return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+      }
+
+      public static com.google.cloud.documentai.v1beta3.ImportDocumentsRequest
+              .BatchDocumentsImportConfig.AutoSplitConfig
+          parseDelimitedFrom(
+              java.io.InputStream input,
+              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+              throws java.io.IOException {
+        return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+            PARSER, input, extensionRegistry);
+      }
+
+      public static com.google.cloud.documentai.v1beta3.ImportDocumentsRequest
+              .BatchDocumentsImportConfig.AutoSplitConfig
+          parseFrom(com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+        return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+      }
+
+      public static com.google.cloud.documentai.v1beta3.ImportDocumentsRequest
+              .BatchDocumentsImportConfig.AutoSplitConfig
+          parseFrom(
+              com.google.protobuf.CodedInputStream input,
+              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+              throws java.io.IOException {
+        return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+            PARSER, input, extensionRegistry);
+      }
+
+      @java.lang.Override
+      public Builder newBuilderForType() {
+        return newBuilder();
+      }
+
+      public static Builder newBuilder() {
+        return DEFAULT_INSTANCE.toBuilder();
+      }
+
+      public static Builder newBuilder(
+          com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig
+                  .AutoSplitConfig
+              prototype) {
+        return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+      }
+
+      @java.lang.Override
+      public Builder toBuilder() {
+        return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+      }
+
+      @java.lang.Override
+      protected Builder newBuilderForType(
+          com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+        Builder builder = new Builder(parent);
+        return builder;
+      }
+      /**
+       *
+       *
+       * 
+       * The config for auto-split.
+       * 

+       *
+       * Protobuf type {@code
+       * google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig.AutoSplitConfig}
+       */
+      public static final class Builder
+          extends com.google.protobuf.GeneratedMessageV3.Builder
+          implements
+          // @@protoc_insertion_point(builder_implements:google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig.AutoSplitConfig)
+          com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig
+              .AutoSplitConfigOrBuilder {
+        public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+          return com.google.cloud.documentai.v1beta3.DocumentAiDocumentService
+              .internal_static_google_cloud_documentai_v1beta3_ImportDocumentsRequest_BatchDocumentsImportConfig_AutoSplitConfig_descriptor;
+        }
+
+        @java.lang.Override
+        protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+            internalGetFieldAccessorTable() {
+          return com.google.cloud.documentai.v1beta3.DocumentAiDocumentService
+              .internal_static_google_cloud_documentai_v1beta3_ImportDocumentsRequest_BatchDocumentsImportConfig_AutoSplitConfig_fieldAccessorTable
+              .ensureFieldAccessorsInitialized(
+                  com.google.cloud.documentai.v1beta3.ImportDocumentsRequest
+                      .BatchDocumentsImportConfig.AutoSplitConfig.class,
+                  com.google.cloud.documentai.v1beta3.ImportDocumentsRequest
+                      .BatchDocumentsImportConfig.AutoSplitConfig.Builder.class);
+        }
+
+        // Construct using
+        // com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig.AutoSplitConfig.newBuilder()
+        private Builder() {}
+
+        private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+          super(parent);
+        }
+
+        @java.lang.Override
+        public Builder clear() {
+          super.clear();
+          bitField0_ = 0;
+          trainingSplitRatio_ = 0F;
+          return this;
+        }
+
+        @java.lang.Override
+        public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+          return com.google.cloud.documentai.v1beta3.DocumentAiDocumentService
+              .internal_static_google_cloud_documentai_v1beta3_ImportDocumentsRequest_BatchDocumentsImportConfig_AutoSplitConfig_descriptor;
+        }
+
+        @java.lang.Override
+        public com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig
+                .AutoSplitConfig
+            getDefaultInstanceForType() {
+          return com.google.cloud.documentai.v1beta3.ImportDocumentsRequest
+              .BatchDocumentsImportConfig.AutoSplitConfig.getDefaultInstance();
+        }
+
+        @java.lang.Override
+        public com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig
+                .AutoSplitConfig
+            build() {
+          com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig
+                  .AutoSplitConfig
+              result = buildPartial();
+          if (!result.isInitialized()) {
+            throw newUninitializedMessageException(result);
+          }
+          return result;
+        }
+
+        @java.lang.Override
+        public com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig
+                .AutoSplitConfig
+            buildPartial() {
+          com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig
+                  .AutoSplitConfig
+              result =
+                  new com.google.cloud.documentai.v1beta3.ImportDocumentsRequest
+                      .BatchDocumentsImportConfig.AutoSplitConfig(this);
+          if (bitField0_ != 0) {
+            buildPartial0(result);
+          }
+          onBuilt();
+          return result;
+        }
+
+        private void buildPartial0(
+            com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig
+                    .AutoSplitConfig
+                result) {
+          int from_bitField0_ = bitField0_;
+          if (((from_bitField0_ & 0x00000001) != 0)) {
+            result.trainingSplitRatio_ = trainingSplitRatio_;
+          }
+        }
+
+        @java.lang.Override
+        public Builder clone() {
+          return super.clone();
+        }
+
+        @java.lang.Override
+        public Builder setField(
+            com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+          return super.setField(field, value);
+        }
+
+        @java.lang.Override
+        public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+          return super.clearField(field);
+        }
+
+        @java.lang.Override
+        public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+          return super.clearOneof(oneof);
+        }
+
+        @java.lang.Override
+        public Builder setRepeatedField(
+            com.google.protobuf.Descriptors.FieldDescriptor field,
+            int index,
+            java.lang.Object value) {
+          return super.setRepeatedField(field, index, value);
+        }
+
+        @java.lang.Override
+        public Builder addRepeatedField(
+            com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+          return super.addRepeatedField(field, value);
+        }
+
+        @java.lang.Override
+        public Builder mergeFrom(com.google.protobuf.Message other) {
+          if (other
+              instanceof
+              com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig
+                  .AutoSplitConfig) {
+            return mergeFrom(
+                (com.google.cloud.documentai.v1beta3.ImportDocumentsRequest
+                        .BatchDocumentsImportConfig.AutoSplitConfig)
+                    other);
+          } else {
+            super.mergeFrom(other);
+            return this;
+          }
+        }
+
+        public Builder mergeFrom(
+            com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig
+                    .AutoSplitConfig
+                other) {
+          if (other
+              == com.google.cloud.documentai.v1beta3.ImportDocumentsRequest
+                  .BatchDocumentsImportConfig.AutoSplitConfig.getDefaultInstance()) return this;
+          if (other.getTrainingSplitRatio() != 0F) {
+            setTrainingSplitRatio(other.getTrainingSplitRatio());
+          }
+          this.mergeUnknownFields(other.getUnknownFields());
+          onChanged();
+          return this;
+        }
+
+        @java.lang.Override
+        public final boolean isInitialized() {
+          return true;
+        }
+
+        @java.lang.Override
+        public Builder mergeFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws java.io.IOException {
+          if (extensionRegistry == null) {
+            throw new java.lang.NullPointerException();
+          }
+          try {
+            boolean done = false;
+            while (!done) {
+              int tag = input.readTag();
+              switch (tag) {
+                case 0:
+                  done = true;
+                  break;
+                case 13:
+                  {
+                    trainingSplitRatio_ = input.readFloat();
+                    bitField0_ |= 0x00000001;
+                    break;
+                  } // case 13
+                default:
+                  {
+                    if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                      done = true; // was an endgroup tag
+                    }
+                    break;
+                  } // default:
+              } // switch (tag)
+            } // while (!done)
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.unwrapIOException();
+          } finally {
+            onChanged();
+          } // finally
+          return this;
+        }
+
+        private int bitField0_;
+
+        private float trainingSplitRatio_;
+        /**
+         *
+         *
+         * 
+         * Ratio of training dataset split.
+         * 

+         *
+         * float training_split_ratio = 1;
+         *
+         * @return The trainingSplitRatio.
+         */
+        @java.lang.Override
+        public float getTrainingSplitRatio() {
+          return trainingSplitRatio_;
+        }
+        /**
+         *
+         *
+         * 
+         * Ratio of training dataset split.
+         * 

+         *
+         * float training_split_ratio = 1;
+         *
+         * @param value The trainingSplitRatio to set.
+         * @return This builder for chaining.
+         */
+        public Builder setTrainingSplitRatio(float value) {
+
+          trainingSplitRatio_ = value;
+          bitField0_ |= 0x00000001;
+          onChanged();
+          return this;
+        }
+        /**
+         *
+         *
+         * 
+         * Ratio of training dataset split.
+         * 

+         *
+         * float training_split_ratio = 1;
+         *
+         * @return This builder for chaining.
+         */
+        public Builder clearTrainingSplitRatio() {
+          bitField0_ = (bitField0_ & ~0x00000001);
+          trainingSplitRatio_ = 0F;
+          onChanged();
+          return this;
+        }
+
+        @java.lang.Override
+        public final Builder setUnknownFields(
+            final com.google.protobuf.UnknownFieldSet unknownFields) {
+          return super.setUnknownFields(unknownFields);
+        }
+
+        @java.lang.Override
+        public final Builder mergeUnknownFields(
+            final com.google.protobuf.UnknownFieldSet unknownFields) {
+          return super.mergeUnknownFields(unknownFields);
+        }
+
+        // @@protoc_insertion_point(builder_scope:google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig.AutoSplitConfig)
+      }
+
+      // @@protoc_insertion_point(class_scope:google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig.AutoSplitConfig)
+      private static final com.google.cloud.documentai.v1beta3.ImportDocumentsRequest
+              .BatchDocumentsImportConfig.AutoSplitConfig
+          DEFAULT_INSTANCE;
+
+      static {
+        DEFAULT_INSTANCE =
+            new com.google.cloud.documentai.v1beta3.ImportDocumentsRequest
+                .BatchDocumentsImportConfig.AutoSplitConfig();
+      }
+
+      public static com.google.cloud.documentai.v1beta3.ImportDocumentsRequest
+              .BatchDocumentsImportConfig.AutoSplitConfig
+          getDefaultInstance() {
+        return DEFAULT_INSTANCE;
+      }
+
+      private static final com.google.protobuf.Parser PARSER =
+          new com.google.protobuf.AbstractParser() {
+            @java.lang.Override
+            public AutoSplitConfig parsePartialFrom(
+                com.google.protobuf.CodedInputStream input,
+                com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+                throws com.google.protobuf.InvalidProtocolBufferException {
+              Builder builder = newBuilder();
+              try {
+                builder.mergeFrom(input, extensionRegistry);
+              } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+                throw e.setUnfinishedMessage(builder.buildPartial());
+              } catch (com.google.protobuf.UninitializedMessageException e) {
+                throw e.asInvalidProtocolBufferException()
+                    .setUnfinishedMessage(builder.buildPartial());
+              } catch (java.io.IOException e) {
+                throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                    .setUnfinishedMessage(builder.buildPartial());
+              }
+              return builder.buildPartial();
+            }
+          };
+
+      public static com.google.protobuf.Parser parser() {
+        return PARSER;
+      }
+
+      @java.lang.Override
+      public com.google.protobuf.Parser getParserForType() {
+        return PARSER;
+      }
+
+      @java.lang.Override
+      public com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig
+              .AutoSplitConfig
+          getDefaultInstanceForType() {
+        return DEFAULT_INSTANCE;
+      }
+    }
+
+    private int splitTypeConfigCase_ = 0;
+
+    @SuppressWarnings("serial")
+    private java.lang.Object splitTypeConfig_;
+
+    public enum SplitTypeConfigCase
+        implements
+            com.google.protobuf.Internal.EnumLite,
+            com.google.protobuf.AbstractMessage.InternalOneOfEnum {
+      DATASET_SPLIT(2),
+      AUTO_SPLIT_CONFIG(3),
+      SPLITTYPECONFIG_NOT_SET(0);
+      private final int value;
+
+      private SplitTypeConfigCase(int value) {
+        this.value = value;
+      }
+      /**
+       * @param value The number of the enum to look for.
+       * @return The enum associated with the given number.
+       * @deprecated Use {@link #forNumber(int)} instead.
+       */
+      @java.lang.Deprecated
+      public static SplitTypeConfigCase valueOf(int value) {
+        return forNumber(value);
+      }
+
+      public static SplitTypeConfigCase forNumber(int value) {
+        switch (value) {
+          case 2:
+            return DATASET_SPLIT;
+          case 3:
+            return AUTO_SPLIT_CONFIG;
+          case 0:
+            return SPLITTYPECONFIG_NOT_SET;
+          default:
+            return null;
+        }
+      }
+
+      public int getNumber() {
+        return this.value;
+      }
+    };
+
+    public SplitTypeConfigCase getSplitTypeConfigCase() {
+      return SplitTypeConfigCase.forNumber(splitTypeConfigCase_);
+    }
+
+    public static final int DATASET_SPLIT_FIELD_NUMBER = 2;
+    /**
+     *
+     *
+     * 
+     * Target dataset split where the documents must be stored.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.DatasetSplitType dataset_split = 2;
+     *
+     * @return Whether the datasetSplit field is set.
+     */
+    public boolean hasDatasetSplit() {
+      return splitTypeConfigCase_ == 2;
+    }
+    /**
+     *
+     *
+     * 
+     * Target dataset split where the documents must be stored.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.DatasetSplitType dataset_split = 2;
+     *
+     * @return The enum numeric value on the wire for datasetSplit.
+     */
+    public int getDatasetSplitValue() {
+      if (splitTypeConfigCase_ == 2) {
+        return (java.lang.Integer) splitTypeConfig_;
+      }
+      return 0;
+    }
+    /**
+     *
+     *
+     * 
+     * Target dataset split where the documents must be stored.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.DatasetSplitType dataset_split = 2;
+     *
+     * @return The datasetSplit.
+     */
+    public com.google.cloud.documentai.v1beta3.DatasetSplitType getDatasetSplit() {
+      if (splitTypeConfigCase_ == 2) {
+        com.google.cloud.documentai.v1beta3.DatasetSplitType result =
+            com.google.cloud.documentai.v1beta3.DatasetSplitType.forNumber(
+                (java.lang.Integer) splitTypeConfig_);
+        return result == null
+            ? com.google.cloud.documentai.v1beta3.DatasetSplitType.UNRECOGNIZED
+            : result;
+      }
+      return com.google.cloud.documentai.v1beta3.DatasetSplitType.DATASET_SPLIT_TYPE_UNSPECIFIED;
+    }
+
+    public static final int AUTO_SPLIT_CONFIG_FIELD_NUMBER = 3;
+    /**
+     *
+     *
+     * 
+     * If set, documents will be automatically split into training and test
+     * split category with the specified ratio.
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig.AutoSplitConfig auto_split_config = 3;
+     * 
+     *
+     * @return Whether the autoSplitConfig field is set.
+     */
+    @java.lang.Override
+    public boolean hasAutoSplitConfig() {
+      return splitTypeConfigCase_ == 3;
+    }
+    /**
+     *
+     *
+     * 
+     * If set, documents will be automatically split into training and test
+     * split category with the specified ratio.
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig.AutoSplitConfig auto_split_config = 3;
+     * 
+     *
+     * @return The autoSplitConfig.
+     */
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig
+            .AutoSplitConfig
+        getAutoSplitConfig() {
+      if (splitTypeConfigCase_ == 3) {
+        return (com.google.cloud.documentai.v1beta3.ImportDocumentsRequest
+                .BatchDocumentsImportConfig.AutoSplitConfig)
+            splitTypeConfig_;
+      }
+      return com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig
+          .AutoSplitConfig.getDefaultInstance();
+    }
+    /**
+     *
+     *
+     * 
+     * If set, documents will be automatically split into training and test
+     * split category with the specified ratio.
+     * 

+     *
+     * 
+     * .google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig.AutoSplitConfig auto_split_config = 3;
+     * 
+     */
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig
+            .AutoSplitConfigOrBuilder
+        getAutoSplitConfigOrBuilder() {
+      if (splitTypeConfigCase_ == 3) {
+        return (com.google.cloud.documentai.v1beta3.ImportDocumentsRequest
+                .BatchDocumentsImportConfig.AutoSplitConfig)
+            splitTypeConfig_;
+      }
+      return com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig
+          .AutoSplitConfig.getDefaultInstance();
+    }
+
+    public static final int BATCH_INPUT_CONFIG_FIELD_NUMBER = 1;
+    private com.google.cloud.documentai.v1beta3.BatchDocumentsInputConfig batchInputConfig_;
+    /**
+     *
+     *
+     * 
+     * The common config to specify a set of documents used as input.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.BatchDocumentsInputConfig batch_input_config = 1;
+     * 
+     *
+     * @return Whether the batchInputConfig field is set.
+     */
+    @java.lang.Override
+    public boolean hasBatchInputConfig() {
+      return batchInputConfig_ != null;
+    }
+    /**
+     *
+     *
+     * 
+     * The common config to specify a set of documents used as input.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.BatchDocumentsInputConfig batch_input_config = 1;
+     * 
+     *
+     * @return The batchInputConfig.
+     */
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta3.BatchDocumentsInputConfig getBatchInputConfig() {
+      return batchInputConfig_ == null
+          ? com.google.cloud.documentai.v1beta3.BatchDocumentsInputConfig.getDefaultInstance()
+          : batchInputConfig_;
+    }
+    /**
+     *
+     *
+     * 
+     * The common config to specify a set of documents used as input.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.BatchDocumentsInputConfig batch_input_config = 1;
+     * 
+     */
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta3.BatchDocumentsInputConfigOrBuilder
+        getBatchInputConfigOrBuilder() {
+      return batchInputConfig_ == null
+          ? com.google.cloud.documentai.v1beta3.BatchDocumentsInputConfig.getDefaultInstance()
+          : batchInputConfig_;
+    }
+
+    private byte memoizedIsInitialized = -1;
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      byte isInitialized = memoizedIsInitialized;
+      if (isInitialized == 1) return true;
+      if (isInitialized == 0) return false;
+
+      memoizedIsInitialized = 1;
+      return true;
+    }
+
+    @java.lang.Override
+    public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+      if (batchInputConfig_ != null) {
+        output.writeMessage(1, getBatchInputConfig());
+      }
+      if (splitTypeConfigCase_ == 2) {
+        output.writeEnum(2, ((java.lang.Integer) splitTypeConfig_));
+      }
+      if (splitTypeConfigCase_ == 3) {
+        output.writeMessage(
+            3,
+            (com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig
+                    .AutoSplitConfig)
+                splitTypeConfig_);
+      }
+      getUnknownFields().writeTo(output);
+    }
+
+    @java.lang.Override
+    public int getSerializedSize() {
+      int size = memoizedSize;
+      if (size != -1) return size;
+
+      size = 0;
+      if (batchInputConfig_ != null) {
+        size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, getBatchInputConfig());
+      }
+      if (splitTypeConfigCase_ == 2) {
+        size +=
+            com.google.protobuf.CodedOutputStream.computeEnumSize(
+                2, ((java.lang.Integer) splitTypeConfig_));
+      }
+      if (splitTypeConfigCase_ == 3) {
+        size +=
+            com.google.protobuf.CodedOutputStream.computeMessageSize(
+                3,
+                (com.google.cloud.documentai.v1beta3.ImportDocumentsRequest
+                        .BatchDocumentsImportConfig.AutoSplitConfig)
+                    splitTypeConfig_);
+      }
+      size += getUnknownFields().getSerializedSize();
+      memoizedSize = size;
+      return size;
+    }
+
+    @java.lang.Override
+    public boolean equals(final java.lang.Object obj) {
+      if (obj == this) {
+        return true;
+      }
+      if (!(obj
+          instanceof
+          com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig)) {
+        return super.equals(obj);
+      }
+      com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig other =
+          (com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig)
+              obj;
+
+      if (hasBatchInputConfig() != other.hasBatchInputConfig()) return false;
+      if (hasBatchInputConfig()) {
+        if (!getBatchInputConfig().equals(other.getBatchInputConfig())) return false;
+      }
+      if (!getSplitTypeConfigCase().equals(other.getSplitTypeConfigCase())) return false;
+      switch (splitTypeConfigCase_) {
+        case 2:
+          if (getDatasetSplitValue() != other.getDatasetSplitValue()) return false;
+          break;
+        case 3:
+          if (!getAutoSplitConfig().equals(other.getAutoSplitConfig())) return false;
+          break;
+        case 0:
+        default:
+      }
+      if (!getUnknownFields().equals(other.getUnknownFields())) return false;
+      return true;
+    }
+
+    @java.lang.Override
+    public int hashCode() {
+      if (memoizedHashCode != 0) {
+        return memoizedHashCode;
+      }
+      int hash = 41;
+      hash = (19 * hash) + getDescriptor().hashCode();
+      if (hasBatchInputConfig()) {
+        hash = (37 * hash) + BATCH_INPUT_CONFIG_FIELD_NUMBER;
+        hash = (53 * hash) + getBatchInputConfig().hashCode();
+      }
+      switch (splitTypeConfigCase_) {
+        case 2:
+          hash = (37 * hash) + DATASET_SPLIT_FIELD_NUMBER;
+          hash = (53 * hash) + getDatasetSplitValue();
+          break;
+        case 3:
+          hash = (37 * hash) + AUTO_SPLIT_CONFIG_FIELD_NUMBER;
+          hash = (53 * hash) + getAutoSplitConfig().hashCode();
+          break;
+        case 0:
+        default:
+      }
+      hash = (29 * hash) + getUnknownFields().hashCode();
+      memoizedHashCode = hash;
+      return hash;
+    }
+
+    public static com.google.cloud.documentai.v1beta3.ImportDocumentsRequest
+            .BatchDocumentsImportConfig
+        parseFrom(java.nio.ByteBuffer data)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.documentai.v1beta3.ImportDocumentsRequest
+            .BatchDocumentsImportConfig
+        parseFrom(
+            java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.documentai.v1beta3.ImportDocumentsRequest
+            .BatchDocumentsImportConfig
+        parseFrom(com.google.protobuf.ByteString data)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.documentai.v1beta3.ImportDocumentsRequest
+            .BatchDocumentsImportConfig
+        parseFrom(
+            com.google.protobuf.ByteString data,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.documentai.v1beta3.ImportDocumentsRequest
+            .BatchDocumentsImportConfig
+        parseFrom(byte[] data) throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data);
+    }
+
+    public static com.google.cloud.documentai.v1beta3.ImportDocumentsRequest
+            .BatchDocumentsImportConfig
+        parseFrom(byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+      return PARSER.parseFrom(data, extensionRegistry);
+    }
+
+    public static com.google.cloud.documentai.v1beta3.ImportDocumentsRequest
+            .BatchDocumentsImportConfig
+        parseFrom(java.io.InputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.documentai.v1beta3.ImportDocumentsRequest
+            .BatchDocumentsImportConfig
+        parseFrom(
+            java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    public static com.google.cloud.documentai.v1beta3.ImportDocumentsRequest
+            .BatchDocumentsImportConfig
+        parseDelimitedFrom(java.io.InputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.documentai.v1beta3.ImportDocumentsRequest
+            .BatchDocumentsImportConfig
+        parseDelimitedFrom(
+            java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    public static com.google.cloud.documentai.v1beta3.ImportDocumentsRequest
+            .BatchDocumentsImportConfig
+        parseFrom(com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+    }
+
+    public static com.google.cloud.documentai.v1beta3.ImportDocumentsRequest
+            .BatchDocumentsImportConfig
+        parseFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws java.io.IOException {
+      return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+          PARSER, input, extensionRegistry);
+    }
+
+    @java.lang.Override
+    public Builder newBuilderForType() {
+      return newBuilder();
+    }
+
+    public static Builder newBuilder() {
+      return DEFAULT_INSTANCE.toBuilder();
+    }
+
+    public static Builder newBuilder(
+        com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig
+            prototype) {
+      return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+    }
+
+    @java.lang.Override
+    public Builder toBuilder() {
+      return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+    }
+
+    @java.lang.Override
+    protected Builder newBuilderForType(
+        com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      Builder builder = new Builder(parent);
+      return builder;
+    }
+    /**
+     *
+     *
+     * 
+     * Config for importing documents.
+     * Each batch can have its own dataset split type.
+     * 

+     *
+     * Protobuf type {@code
+     * google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig}
+     */
+    public static final class Builder
+        extends com.google.protobuf.GeneratedMessageV3.Builder
+        implements
+        // @@protoc_insertion_point(builder_implements:google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig)
+        com.google.cloud.documentai.v1beta3.ImportDocumentsRequest
+            .BatchDocumentsImportConfigOrBuilder {
+      public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+        return com.google.cloud.documentai.v1beta3.DocumentAiDocumentService
+            .internal_static_google_cloud_documentai_v1beta3_ImportDocumentsRequest_BatchDocumentsImportConfig_descriptor;
+      }
+
+      @java.lang.Override
+      protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+          internalGetFieldAccessorTable() {
+        return com.google.cloud.documentai.v1beta3.DocumentAiDocumentService
+            .internal_static_google_cloud_documentai_v1beta3_ImportDocumentsRequest_BatchDocumentsImportConfig_fieldAccessorTable
+            .ensureFieldAccessorsInitialized(
+                com.google.cloud.documentai.v1beta3.ImportDocumentsRequest
+                    .BatchDocumentsImportConfig.class,
+                com.google.cloud.documentai.v1beta3.ImportDocumentsRequest
+                    .BatchDocumentsImportConfig.Builder.class);
+      }
+
+      // Construct using
+      // com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig.newBuilder()
+      private Builder() {}
+
+      private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+        super(parent);
+      }
+
+      @java.lang.Override
+      public Builder clear() {
+        super.clear();
+        bitField0_ = 0;
+        if (autoSplitConfigBuilder_ != null) {
+          autoSplitConfigBuilder_.clear();
+        }
+        batchInputConfig_ = null;
+        if (batchInputConfigBuilder_ != null) {
+          batchInputConfigBuilder_.dispose();
+          batchInputConfigBuilder_ = null;
+        }
+        splitTypeConfigCase_ = 0;
+        splitTypeConfig_ = null;
+        return this;
+      }
+
+      @java.lang.Override
+      public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+        return com.google.cloud.documentai.v1beta3.DocumentAiDocumentService
+            .internal_static_google_cloud_documentai_v1beta3_ImportDocumentsRequest_BatchDocumentsImportConfig_descriptor;
+      }
+
+      @java.lang.Override
+      public com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig
+          getDefaultInstanceForType() {
+        return com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig
+            .getDefaultInstance();
+      }
+
+      @java.lang.Override
+      public com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig
+          build() {
+        com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig
+            result = buildPartial();
+        if (!result.isInitialized()) {
+          throw newUninitializedMessageException(result);
+        }
+        return result;
+      }
+
+      @java.lang.Override
+      public com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig
+          buildPartial() {
+        com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig
+            result =
+                new com.google.cloud.documentai.v1beta3.ImportDocumentsRequest
+                    .BatchDocumentsImportConfig(this);
+        if (bitField0_ != 0) {
+          buildPartial0(result);
+        }
+        buildPartialOneofs(result);
+        onBuilt();
+        return result;
+      }
+
+      private void buildPartial0(
+          com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig
+              result) {
+        int from_bitField0_ = bitField0_;
+        if (((from_bitField0_ & 0x00000004) != 0)) {
+          result.batchInputConfig_ =
+              batchInputConfigBuilder_ == null
+                  ? batchInputConfig_
+                  : batchInputConfigBuilder_.build();
+        }
+      }
+
+      private void buildPartialOneofs(
+          com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig
+              result) {
+        result.splitTypeConfigCase_ = splitTypeConfigCase_;
+        result.splitTypeConfig_ = this.splitTypeConfig_;
+        if (splitTypeConfigCase_ == 3 && autoSplitConfigBuilder_ != null) {
+          result.splitTypeConfig_ = autoSplitConfigBuilder_.build();
+        }
+      }
+
+      @java.lang.Override
+      public Builder clone() {
+        return super.clone();
+      }
+
+      @java.lang.Override
+      public Builder setField(
+          com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+        return super.setField(field, value);
+      }
+
+      @java.lang.Override
+      public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+        return super.clearField(field);
+      }
+
+      @java.lang.Override
+      public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+        return super.clearOneof(oneof);
+      }
+
+      @java.lang.Override
+      public Builder setRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field,
+          int index,
+          java.lang.Object value) {
+        return super.setRepeatedField(field, index, value);
+      }
+
+      @java.lang.Override
+      public Builder addRepeatedField(
+          com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+        return super.addRepeatedField(field, value);
+      }
+
+      @java.lang.Override
+      public Builder mergeFrom(com.google.protobuf.Message other) {
+        if (other
+            instanceof
+            com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig) {
+          return mergeFrom(
+              (com.google.cloud.documentai.v1beta3.ImportDocumentsRequest
+                      .BatchDocumentsImportConfig)
+                  other);
+        } else {
+          super.mergeFrom(other);
+          return this;
+        }
+      }
+
+      public Builder mergeFrom(
+          com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig
+              other) {
+        if (other
+            == com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig
+                .getDefaultInstance()) return this;
+        if (other.hasBatchInputConfig()) {
+          mergeBatchInputConfig(other.getBatchInputConfig());
+        }
+        switch (other.getSplitTypeConfigCase()) {
+          case DATASET_SPLIT:
+            {
+              setDatasetSplitValue(other.getDatasetSplitValue());
+              break;
+            }
+          case AUTO_SPLIT_CONFIG:
+            {
+              mergeAutoSplitConfig(other.getAutoSplitConfig());
+              break;
+            }
+          case SPLITTYPECONFIG_NOT_SET:
+            {
+              break;
+            }
+        }
+        this.mergeUnknownFields(other.getUnknownFields());
+        onChanged();
+        return this;
+      }
+
+      @java.lang.Override
+      public final boolean isInitialized() {
+        return true;
+      }
+
+      @java.lang.Override
+      public Builder mergeFrom(
+          com.google.protobuf.CodedInputStream input,
+          com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+          throws java.io.IOException {
+        if (extensionRegistry == null) {
+          throw new java.lang.NullPointerException();
+        }
+        try {
+          boolean done = false;
+          while (!done) {
+            int tag = input.readTag();
+            switch (tag) {
+              case 0:
+                done = true;
+                break;
+              case 10:
+                {
+                  input.readMessage(
+                      getBatchInputConfigFieldBuilder().getBuilder(), extensionRegistry);
+                  bitField0_ |= 0x00000004;
+                  break;
+                } // case 10
+              case 16:
+                {
+                  int rawValue = input.readEnum();
+                  splitTypeConfigCase_ = 2;
+                  splitTypeConfig_ = rawValue;
+                  break;
+                } // case 16
+              case 26:
+                {
+                  input.readMessage(
+                      getAutoSplitConfigFieldBuilder().getBuilder(), extensionRegistry);
+                  splitTypeConfigCase_ = 3;
+                  break;
+                } // case 26
+              default:
+                {
+                  if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                    done = true; // was an endgroup tag
+                  }
+                  break;
+                } // default:
+            } // switch (tag)
+          } // while (!done)
+        } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+          throw e.unwrapIOException();
+        } finally {
+          onChanged();
+        } // finally
+        return this;
+      }
+
+      private int splitTypeConfigCase_ = 0;
+      private java.lang.Object splitTypeConfig_;
+
+      public SplitTypeConfigCase getSplitTypeConfigCase() {
+        return SplitTypeConfigCase.forNumber(splitTypeConfigCase_);
+      }
+
+      public Builder clearSplitTypeConfig() {
+        splitTypeConfigCase_ = 0;
+        splitTypeConfig_ = null;
+        onChanged();
+        return this;
+      }
+
+      private int bitField0_;
+
+      /**
+       *
+       *
+       * 
+       * Target dataset split where the documents must be stored.
+       * 

+       *
+       * .google.cloud.documentai.v1beta3.DatasetSplitType dataset_split = 2;
+       *
+       * @return Whether the datasetSplit field is set.
+       */
+      @java.lang.Override
+      public boolean hasDatasetSplit() {
+        return splitTypeConfigCase_ == 2;
+      }
+      /**
+       *
+       *
+       * 
+       * Target dataset split where the documents must be stored.
+       * 

+       *
+       * .google.cloud.documentai.v1beta3.DatasetSplitType dataset_split = 2;
+       *
+       * @return The enum numeric value on the wire for datasetSplit.
+       */
+      @java.lang.Override
+      public int getDatasetSplitValue() {
+        if (splitTypeConfigCase_ == 2) {
+          return ((java.lang.Integer) splitTypeConfig_).intValue();
+        }
+        return 0;
+      }
+      /**
+       *
+       *
+       * 
+       * Target dataset split where the documents must be stored.
+       * 

+       *
+       * .google.cloud.documentai.v1beta3.DatasetSplitType dataset_split = 2;
+       *
+       * @param value The enum numeric value on the wire for datasetSplit to set.
+       * @return This builder for chaining.
+       */
+      public Builder setDatasetSplitValue(int value) {
+        splitTypeConfigCase_ = 2;
+        splitTypeConfig_ = value;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * Target dataset split where the documents must be stored.
+       * 

+       *
+       * .google.cloud.documentai.v1beta3.DatasetSplitType dataset_split = 2;
+       *
+       * @return The datasetSplit.
+       */
+      @java.lang.Override
+      public com.google.cloud.documentai.v1beta3.DatasetSplitType getDatasetSplit() {
+        if (splitTypeConfigCase_ == 2) {
+          com.google.cloud.documentai.v1beta3.DatasetSplitType result =
+              com.google.cloud.documentai.v1beta3.DatasetSplitType.forNumber(
+                  (java.lang.Integer) splitTypeConfig_);
+          return result == null
+              ? com.google.cloud.documentai.v1beta3.DatasetSplitType.UNRECOGNIZED
+              : result;
+        }
+        return com.google.cloud.documentai.v1beta3.DatasetSplitType.DATASET_SPLIT_TYPE_UNSPECIFIED;
+      }
+      /**
+       *
+       *
+       * 
+       * Target dataset split where the documents must be stored.
+       * 

+       *
+       * .google.cloud.documentai.v1beta3.DatasetSplitType dataset_split = 2;
+       *
+       * @param value The datasetSplit to set.
+       * @return This builder for chaining.
+       */
+      public Builder setDatasetSplit(com.google.cloud.documentai.v1beta3.DatasetSplitType value) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        splitTypeConfigCase_ = 2;
+        splitTypeConfig_ = value.getNumber();
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * Target dataset split where the documents must be stored.
+       * 

+       *
+       * .google.cloud.documentai.v1beta3.DatasetSplitType dataset_split = 2;
+       *
+       * @return This builder for chaining.
+       */
+      public Builder clearDatasetSplit() {
+        if (splitTypeConfigCase_ == 2) {
+          splitTypeConfigCase_ = 0;
+          splitTypeConfig_ = null;
+          onChanged();
+        }
+        return this;
+      }
+
+      private com.google.protobuf.SingleFieldBuilderV3<
+              com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig
+                  .AutoSplitConfig,
+              com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig
+                  .AutoSplitConfig.Builder,
+              com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig
+                  .AutoSplitConfigOrBuilder>
+          autoSplitConfigBuilder_;
+      /**
+       *
+       *
+       * 
+       * If set, documents will be automatically split into training and test
+       * split category with the specified ratio.
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig.AutoSplitConfig auto_split_config = 3;
+       * 
+       *
+       * @return Whether the autoSplitConfig field is set.
+       */
+      @java.lang.Override
+      public boolean hasAutoSplitConfig() {
+        return splitTypeConfigCase_ == 3;
+      }
+      /**
+       *
+       *
+       * 
+       * If set, documents will be automatically split into training and test
+       * split category with the specified ratio.
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig.AutoSplitConfig auto_split_config = 3;
+       * 
+       *
+       * @return The autoSplitConfig.
+       */
+      @java.lang.Override
+      public com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig
+              .AutoSplitConfig
+          getAutoSplitConfig() {
+        if (autoSplitConfigBuilder_ == null) {
+          if (splitTypeConfigCase_ == 3) {
+            return (com.google.cloud.documentai.v1beta3.ImportDocumentsRequest
+                    .BatchDocumentsImportConfig.AutoSplitConfig)
+                splitTypeConfig_;
+          }
+          return com.google.cloud.documentai.v1beta3.ImportDocumentsRequest
+              .BatchDocumentsImportConfig.AutoSplitConfig.getDefaultInstance();
+        } else {
+          if (splitTypeConfigCase_ == 3) {
+            return autoSplitConfigBuilder_.getMessage();
+          }
+          return com.google.cloud.documentai.v1beta3.ImportDocumentsRequest
+              .BatchDocumentsImportConfig.AutoSplitConfig.getDefaultInstance();
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * If set, documents will be automatically split into training and test
+       * split category with the specified ratio.
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig.AutoSplitConfig auto_split_config = 3;
+       * 
+       */
+      public Builder setAutoSplitConfig(
+          com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig
+                  .AutoSplitConfig
+              value) {
+        if (autoSplitConfigBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          splitTypeConfig_ = value;
+          onChanged();
+        } else {
+          autoSplitConfigBuilder_.setMessage(value);
+        }
+        splitTypeConfigCase_ = 3;
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * If set, documents will be automatically split into training and test
+       * split category with the specified ratio.
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig.AutoSplitConfig auto_split_config = 3;
+       * 
+       */
+      public Builder setAutoSplitConfig(
+          com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig
+                  .AutoSplitConfig.Builder
+              builderForValue) {
+        if (autoSplitConfigBuilder_ == null) {
+          splitTypeConfig_ = builderForValue.build();
+          onChanged();
+        } else {
+          autoSplitConfigBuilder_.setMessage(builderForValue.build());
+        }
+        splitTypeConfigCase_ = 3;
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * If set, documents will be automatically split into training and test
+       * split category with the specified ratio.
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig.AutoSplitConfig auto_split_config = 3;
+       * 
+       */
+      public Builder mergeAutoSplitConfig(
+          com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig
+                  .AutoSplitConfig
+              value) {
+        if (autoSplitConfigBuilder_ == null) {
+          if (splitTypeConfigCase_ == 3
+              && splitTypeConfig_
+                  != com.google.cloud.documentai.v1beta3.ImportDocumentsRequest
+                      .BatchDocumentsImportConfig.AutoSplitConfig.getDefaultInstance()) {
+            splitTypeConfig_ =
+                com.google.cloud.documentai.v1beta3.ImportDocumentsRequest
+                    .BatchDocumentsImportConfig.AutoSplitConfig.newBuilder(
+                        (com.google.cloud.documentai.v1beta3.ImportDocumentsRequest
+                                .BatchDocumentsImportConfig.AutoSplitConfig)
+                            splitTypeConfig_)
+                    .mergeFrom(value)
+                    .buildPartial();
+          } else {
+            splitTypeConfig_ = value;
+          }
+          onChanged();
+        } else {
+          if (splitTypeConfigCase_ == 3) {
+            autoSplitConfigBuilder_.mergeFrom(value);
+          } else {
+            autoSplitConfigBuilder_.setMessage(value);
+          }
+        }
+        splitTypeConfigCase_ = 3;
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * If set, documents will be automatically split into training and test
+       * split category with the specified ratio.
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig.AutoSplitConfig auto_split_config = 3;
+       * 
+       */
+      public Builder clearAutoSplitConfig() {
+        if (autoSplitConfigBuilder_ == null) {
+          if (splitTypeConfigCase_ == 3) {
+            splitTypeConfigCase_ = 0;
+            splitTypeConfig_ = null;
+            onChanged();
+          }
+        } else {
+          if (splitTypeConfigCase_ == 3) {
+            splitTypeConfigCase_ = 0;
+            splitTypeConfig_ = null;
+          }
+          autoSplitConfigBuilder_.clear();
+        }
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * If set, documents will be automatically split into training and test
+       * split category with the specified ratio.
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig.AutoSplitConfig auto_split_config = 3;
+       * 
+       */
+      public com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig
+              .AutoSplitConfig.Builder
+          getAutoSplitConfigBuilder() {
+        return getAutoSplitConfigFieldBuilder().getBuilder();
+      }
+      /**
+       *
+       *
+       * 
+       * If set, documents will be automatically split into training and test
+       * split category with the specified ratio.
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig.AutoSplitConfig auto_split_config = 3;
+       * 
+       */
+      @java.lang.Override
+      public com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig
+              .AutoSplitConfigOrBuilder
+          getAutoSplitConfigOrBuilder() {
+        if ((splitTypeConfigCase_ == 3) && (autoSplitConfigBuilder_ != null)) {
+          return autoSplitConfigBuilder_.getMessageOrBuilder();
+        } else {
+          if (splitTypeConfigCase_ == 3) {
+            return (com.google.cloud.documentai.v1beta3.ImportDocumentsRequest
+                    .BatchDocumentsImportConfig.AutoSplitConfig)
+                splitTypeConfig_;
+          }
+          return com.google.cloud.documentai.v1beta3.ImportDocumentsRequest
+              .BatchDocumentsImportConfig.AutoSplitConfig.getDefaultInstance();
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * If set, documents will be automatically split into training and test
+       * split category with the specified ratio.
+       * 

+       *
+       * 
+       * .google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig.AutoSplitConfig auto_split_config = 3;
+       * 
+       */
+      private com.google.protobuf.SingleFieldBuilderV3<
+              com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig
+                  .AutoSplitConfig,
+              com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig
+                  .AutoSplitConfig.Builder,
+              com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig
+                  .AutoSplitConfigOrBuilder>
+          getAutoSplitConfigFieldBuilder() {
+        if (autoSplitConfigBuilder_ == null) {
+          if (!(splitTypeConfigCase_ == 3)) {
+            splitTypeConfig_ =
+                com.google.cloud.documentai.v1beta3.ImportDocumentsRequest
+                    .BatchDocumentsImportConfig.AutoSplitConfig.getDefaultInstance();
+          }
+          autoSplitConfigBuilder_ =
+              new com.google.protobuf.SingleFieldBuilderV3<
+                  com.google.cloud.documentai.v1beta3.ImportDocumentsRequest
+                      .BatchDocumentsImportConfig.AutoSplitConfig,
+                  com.google.cloud.documentai.v1beta3.ImportDocumentsRequest
+                      .BatchDocumentsImportConfig.AutoSplitConfig.Builder,
+                  com.google.cloud.documentai.v1beta3.ImportDocumentsRequest
+                      .BatchDocumentsImportConfig.AutoSplitConfigOrBuilder>(
+                  (com.google.cloud.documentai.v1beta3.ImportDocumentsRequest
+                          .BatchDocumentsImportConfig.AutoSplitConfig)
+                      splitTypeConfig_,
+                  getParentForChildren(),
+                  isClean());
+          splitTypeConfig_ = null;
+        }
+        splitTypeConfigCase_ = 3;
+        onChanged();
+        return autoSplitConfigBuilder_;
+      }
+
+      private com.google.cloud.documentai.v1beta3.BatchDocumentsInputConfig batchInputConfig_;
+      private com.google.protobuf.SingleFieldBuilderV3<
+              com.google.cloud.documentai.v1beta3.BatchDocumentsInputConfig,
+              com.google.cloud.documentai.v1beta3.BatchDocumentsInputConfig.Builder,
+              com.google.cloud.documentai.v1beta3.BatchDocumentsInputConfigOrBuilder>
+          batchInputConfigBuilder_;
+      /**
+       *
+       *
+       * 
+       * The common config to specify a set of documents used as input.
+       * 

+       *
+       * .google.cloud.documentai.v1beta3.BatchDocumentsInputConfig batch_input_config = 1;
+       * 
+       *
+       * @return Whether the batchInputConfig field is set.
+       */
+      public boolean hasBatchInputConfig() {
+        return ((bitField0_ & 0x00000004) != 0);
+      }
+      /**
+       *
+       *
+       * 
+       * The common config to specify a set of documents used as input.
+       * 

+       *
+       * .google.cloud.documentai.v1beta3.BatchDocumentsInputConfig batch_input_config = 1;
+       * 
+       *
+       * @return The batchInputConfig.
+       */
+      public com.google.cloud.documentai.v1beta3.BatchDocumentsInputConfig getBatchInputConfig() {
+        if (batchInputConfigBuilder_ == null) {
+          return batchInputConfig_ == null
+              ? com.google.cloud.documentai.v1beta3.BatchDocumentsInputConfig.getDefaultInstance()
+              : batchInputConfig_;
+        } else {
+          return batchInputConfigBuilder_.getMessage();
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * The common config to specify a set of documents used as input.
+       * 

+       *
+       * .google.cloud.documentai.v1beta3.BatchDocumentsInputConfig batch_input_config = 1;
+       * 
+       */
+      public Builder setBatchInputConfig(
+          com.google.cloud.documentai.v1beta3.BatchDocumentsInputConfig value) {
+        if (batchInputConfigBuilder_ == null) {
+          if (value == null) {
+            throw new NullPointerException();
+          }
+          batchInputConfig_ = value;
+        } else {
+          batchInputConfigBuilder_.setMessage(value);
+        }
+        bitField0_ |= 0x00000004;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * The common config to specify a set of documents used as input.
+       * 

+       *
+       * .google.cloud.documentai.v1beta3.BatchDocumentsInputConfig batch_input_config = 1;
+       * 
+       */
+      public Builder setBatchInputConfig(
+          com.google.cloud.documentai.v1beta3.BatchDocumentsInputConfig.Builder builderForValue) {
+        if (batchInputConfigBuilder_ == null) {
+          batchInputConfig_ = builderForValue.build();
+        } else {
+          batchInputConfigBuilder_.setMessage(builderForValue.build());
+        }
+        bitField0_ |= 0x00000004;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * The common config to specify a set of documents used as input.
+       * 

+       *
+       * .google.cloud.documentai.v1beta3.BatchDocumentsInputConfig batch_input_config = 1;
+       * 
+       */
+      public Builder mergeBatchInputConfig(
+          com.google.cloud.documentai.v1beta3.BatchDocumentsInputConfig value) {
+        if (batchInputConfigBuilder_ == null) {
+          if (((bitField0_ & 0x00000004) != 0)
+              && batchInputConfig_ != null
+              && batchInputConfig_
+                  != com.google.cloud.documentai.v1beta3.BatchDocumentsInputConfig
+                      .getDefaultInstance()) {
+            getBatchInputConfigBuilder().mergeFrom(value);
+          } else {
+            batchInputConfig_ = value;
+          }
+        } else {
+          batchInputConfigBuilder_.mergeFrom(value);
+        }
+        bitField0_ |= 0x00000004;
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * The common config to specify a set of documents used as input.
+       * 

+       *
+       * .google.cloud.documentai.v1beta3.BatchDocumentsInputConfig batch_input_config = 1;
+       * 
+       */
+      public Builder clearBatchInputConfig() {
+        bitField0_ = (bitField0_ & ~0x00000004);
+        batchInputConfig_ = null;
+        if (batchInputConfigBuilder_ != null) {
+          batchInputConfigBuilder_.dispose();
+          batchInputConfigBuilder_ = null;
+        }
+        onChanged();
+        return this;
+      }
+      /**
+       *
+       *
+       * 
+       * The common config to specify a set of documents used as input.
+       * 

+       *
+       * .google.cloud.documentai.v1beta3.BatchDocumentsInputConfig batch_input_config = 1;
+       * 
+       */
+      public com.google.cloud.documentai.v1beta3.BatchDocumentsInputConfig.Builder
+          getBatchInputConfigBuilder() {
+        bitField0_ |= 0x00000004;
+        onChanged();
+        return getBatchInputConfigFieldBuilder().getBuilder();
+      }
+      /**
+       *
+       *
+       * 
+       * The common config to specify a set of documents used as input.
+       * 

+       *
+       * .google.cloud.documentai.v1beta3.BatchDocumentsInputConfig batch_input_config = 1;
+       * 
+       */
+      public com.google.cloud.documentai.v1beta3.BatchDocumentsInputConfigOrBuilder
+          getBatchInputConfigOrBuilder() {
+        if (batchInputConfigBuilder_ != null) {
+          return batchInputConfigBuilder_.getMessageOrBuilder();
+        } else {
+          return batchInputConfig_ == null
+              ? com.google.cloud.documentai.v1beta3.BatchDocumentsInputConfig.getDefaultInstance()
+              : batchInputConfig_;
+        }
+      }
+      /**
+       *
+       *
+       * 
+       * The common config to specify a set of documents used as input.
+       * 

+       *
+       * .google.cloud.documentai.v1beta3.BatchDocumentsInputConfig batch_input_config = 1;
+       * 
+       */
+      private com.google.protobuf.SingleFieldBuilderV3<
+              com.google.cloud.documentai.v1beta3.BatchDocumentsInputConfig,
+              com.google.cloud.documentai.v1beta3.BatchDocumentsInputConfig.Builder,
+              com.google.cloud.documentai.v1beta3.BatchDocumentsInputConfigOrBuilder>
+          getBatchInputConfigFieldBuilder() {
+        if (batchInputConfigBuilder_ == null) {
+          batchInputConfigBuilder_ =
+              new com.google.protobuf.SingleFieldBuilderV3<
+                  com.google.cloud.documentai.v1beta3.BatchDocumentsInputConfig,
+                  com.google.cloud.documentai.v1beta3.BatchDocumentsInputConfig.Builder,
+                  com.google.cloud.documentai.v1beta3.BatchDocumentsInputConfigOrBuilder>(
+                  getBatchInputConfig(), getParentForChildren(), isClean());
+          batchInputConfig_ = null;
+        }
+        return batchInputConfigBuilder_;
+      }
+
+      @java.lang.Override
+      public final Builder setUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.setUnknownFields(unknownFields);
+      }
+
+      @java.lang.Override
+      public final Builder mergeUnknownFields(
+          final com.google.protobuf.UnknownFieldSet unknownFields) {
+        return super.mergeUnknownFields(unknownFields);
+      }
+
+      // @@protoc_insertion_point(builder_scope:google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig)
+    }
+
+    // @@protoc_insertion_point(class_scope:google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig)
+    private static final com.google.cloud.documentai.v1beta3.ImportDocumentsRequest
+            .BatchDocumentsImportConfig
+        DEFAULT_INSTANCE;
+
+    static {
+      DEFAULT_INSTANCE =
+          new com.google.cloud.documentai.v1beta3.ImportDocumentsRequest
+              .BatchDocumentsImportConfig();
+    }
+
+    public static com.google.cloud.documentai.v1beta3.ImportDocumentsRequest
+            .BatchDocumentsImportConfig
+        getDefaultInstance() {
+      return DEFAULT_INSTANCE;
+    }
+
+    private static final com.google.protobuf.Parser PARSER =
+        new com.google.protobuf.AbstractParser() {
+          @java.lang.Override
+          public BatchDocumentsImportConfig parsePartialFrom(
+              com.google.protobuf.CodedInputStream input,
+              com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+              throws com.google.protobuf.InvalidProtocolBufferException {
+            Builder builder = newBuilder();
+            try {
+              builder.mergeFrom(input, extensionRegistry);
+            } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+              throw e.setUnfinishedMessage(builder.buildPartial());
+            } catch (com.google.protobuf.UninitializedMessageException e) {
+              throw e.asInvalidProtocolBufferException()
+                  .setUnfinishedMessage(builder.buildPartial());
+            } catch (java.io.IOException e) {
+              throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                  .setUnfinishedMessage(builder.buildPartial());
+            }
+            return builder.buildPartial();
+          }
+        };
+
+    public static com.google.protobuf.Parser parser() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Parser getParserForType() {
+      return PARSER;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig
+        getDefaultInstanceForType() {
+      return DEFAULT_INSTANCE;
+    }
+  }
+
+  public static final int DATASET_FIELD_NUMBER = 1;
+
+  @SuppressWarnings("serial")
+  private volatile java.lang.Object dataset_ = "";
+  /**
+   *
+   *
+   * 
+   * Required. The dataset resource name.
+   * Format:
+   * projects/{project}/locations/{location}/processors/{processor}/dataset
+   * 

+   *
+   * 
+   * string dataset = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * 
+   *
+   * @return The dataset.
+   */
+  @java.lang.Override
+  public java.lang.String getDataset() {
+    java.lang.Object ref = dataset_;
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      dataset_ = s;
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * 
+   * Required. The dataset resource name.
+   * Format:
+   * projects/{project}/locations/{location}/processors/{processor}/dataset
+   * 

+   *
+   * 
+   * string dataset = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * 
+   *
+   * @return The bytes for dataset.
+   */
+  @java.lang.Override
+  public com.google.protobuf.ByteString getDatasetBytes() {
+    java.lang.Object ref = dataset_;
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      dataset_ = b;
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int BATCH_DOCUMENTS_IMPORT_CONFIGS_FIELD_NUMBER = 4;
+
+  @SuppressWarnings("serial")
+  private java.util.List<
+          com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig>
+      batchDocumentsImportConfigs_;
+  /**
+   *
+   *
+   * 
+   * Required. The Cloud Storage uri containing raw documents that must be
+   * imported.
+   * 

+   *
+   * 
+   * repeated .google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig batch_documents_import_configs = 4 [(.google.api.field_behavior) = REQUIRED];
+   * 
+   */
+  @java.lang.Override
+  public java.util.List<
+          com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig>
+      getBatchDocumentsImportConfigsList() {
+    return batchDocumentsImportConfigs_;
+  }
+  /**
+   *
+   *
+   * 
+   * Required. The Cloud Storage uri containing raw documents that must be
+   * imported.
+   * 

+   *
+   * 
+   * repeated .google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig batch_documents_import_configs = 4 [(.google.api.field_behavior) = REQUIRED];
+   * 
+   */
+  @java.lang.Override
+  public java.util.List<
+          ? extends
+              com.google.cloud.documentai.v1beta3.ImportDocumentsRequest
+                  .BatchDocumentsImportConfigOrBuilder>
+      getBatchDocumentsImportConfigsOrBuilderList() {
+    return batchDocumentsImportConfigs_;
+  }
+  /**
+   *
+   *
+   * 
+   * Required. The Cloud Storage uri containing raw documents that must be
+   * imported.
+   * 

+   *
+   * 
+   * repeated .google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig batch_documents_import_configs = 4 [(.google.api.field_behavior) = REQUIRED];
+   * 
+   */
+  @java.lang.Override
+  public int getBatchDocumentsImportConfigsCount() {
+    return batchDocumentsImportConfigs_.size();
+  }
+  /**
+   *
+   *
+   * 
+   * Required. The Cloud Storage uri containing raw documents that must be
+   * imported.
+   * 

+   *
+   * 
+   * repeated .google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig batch_documents_import_configs = 4 [(.google.api.field_behavior) = REQUIRED];
+   * 
+   */
+  @java.lang.Override
+  public com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig
+      getBatchDocumentsImportConfigs(int index) {
+    return batchDocumentsImportConfigs_.get(index);
+  }
+  /**
+   *
+   *
+   * 
+   * Required. The Cloud Storage uri containing raw documents that must be
+   * imported.
+   * 

+   *
+   * 
+   * repeated .google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig batch_documents_import_configs = 4 [(.google.api.field_behavior) = REQUIRED];
+   * 
+   */
+  @java.lang.Override
+  public com.google.cloud.documentai.v1beta3.ImportDocumentsRequest
+          .BatchDocumentsImportConfigOrBuilder
+      getBatchDocumentsImportConfigsOrBuilder(int index) {
+    return batchDocumentsImportConfigs_.get(index);
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(dataset_)) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 1, dataset_);
+    }
+    for (int i = 0; i < batchDocumentsImportConfigs_.size(); i++) {
+      output.writeMessage(4, batchDocumentsImportConfigs_.get(i));
+    }
+    getUnknownFields().writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(dataset_)) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, dataset_);
+    }
+    for (int i = 0; i < batchDocumentsImportConfigs_.size(); i++) {
+      size +=
+          com.google.protobuf.CodedOutputStream.computeMessageSize(
+              4, batchDocumentsImportConfigs_.get(i));
+    }
+    size += getUnknownFields().getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.documentai.v1beta3.ImportDocumentsRequest)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.documentai.v1beta3.ImportDocumentsRequest other =
+        (com.google.cloud.documentai.v1beta3.ImportDocumentsRequest) obj;
+
+    if (!getDataset().equals(other.getDataset())) return false;
+    if (!getBatchDocumentsImportConfigsList().equals(other.getBatchDocumentsImportConfigsList()))
+      return false;
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (37 * hash) + DATASET_FIELD_NUMBER;
+    hash = (53 * hash) + getDataset().hashCode();
+    if (getBatchDocumentsImportConfigsCount() > 0) {
+      hash = (37 * hash) + BATCH_DOCUMENTS_IMPORT_CONFIGS_FIELD_NUMBER;
+      hash = (53 * hash) + getBatchDocumentsImportConfigsList().hashCode();
+    }
+    hash = (29 * hash) + getUnknownFields().hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.documentai.v1beta3.ImportDocumentsRequest parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.ImportDocumentsRequest parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.ImportDocumentsRequest parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.ImportDocumentsRequest parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.ImportDocumentsRequest parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.ImportDocumentsRequest parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.ImportDocumentsRequest parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.ImportDocumentsRequest parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.ImportDocumentsRequest parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.ImportDocumentsRequest parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.ImportDocumentsRequest parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.ImportDocumentsRequest parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.documentai.v1beta3.ImportDocumentsRequest prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /** Protobuf type {@code google.cloud.documentai.v1beta3.ImportDocumentsRequest} */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.documentai.v1beta3.ImportDocumentsRequest)
+      com.google.cloud.documentai.v1beta3.ImportDocumentsRequestOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.documentai.v1beta3.DocumentAiDocumentService
+          .internal_static_google_cloud_documentai_v1beta3_ImportDocumentsRequest_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.documentai.v1beta3.DocumentAiDocumentService
+          .internal_static_google_cloud_documentai_v1beta3_ImportDocumentsRequest_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.class,
+              com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.Builder.class);
+    }
+
+    // Construct using com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.newBuilder()
+    private Builder() {}
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      bitField0_ = 0;
+      dataset_ = "";
+      if (batchDocumentsImportConfigsBuilder_ == null) {
+        batchDocumentsImportConfigs_ = java.util.Collections.emptyList();
+      } else {
+        batchDocumentsImportConfigs_ = null;
+        batchDocumentsImportConfigsBuilder_.clear();
+      }
+      bitField0_ = (bitField0_ & ~0x00000002);
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.documentai.v1beta3.DocumentAiDocumentService
+          .internal_static_google_cloud_documentai_v1beta3_ImportDocumentsRequest_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta3.ImportDocumentsRequest getDefaultInstanceForType() {
+      return com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta3.ImportDocumentsRequest build() {
+      com.google.cloud.documentai.v1beta3.ImportDocumentsRequest result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta3.ImportDocumentsRequest buildPartial() {
+      com.google.cloud.documentai.v1beta3.ImportDocumentsRequest result =
+          new com.google.cloud.documentai.v1beta3.ImportDocumentsRequest(this);
+      buildPartialRepeatedFields(result);
+      if (bitField0_ != 0) {
+        buildPartial0(result);
+      }
+      onBuilt();
+      return result;
+    }
+
+    private void buildPartialRepeatedFields(
+        com.google.cloud.documentai.v1beta3.ImportDocumentsRequest result) {
+      if (batchDocumentsImportConfigsBuilder_ == null) {
+        if (((bitField0_ & 0x00000002) != 0)) {
+          batchDocumentsImportConfigs_ =
+              java.util.Collections.unmodifiableList(batchDocumentsImportConfigs_);
+          bitField0_ = (bitField0_ & ~0x00000002);
+        }
+        result.batchDocumentsImportConfigs_ = batchDocumentsImportConfigs_;
+      } else {
+        result.batchDocumentsImportConfigs_ = batchDocumentsImportConfigsBuilder_.build();
+      }
+    }
+
+    private void buildPartial0(com.google.cloud.documentai.v1beta3.ImportDocumentsRequest result) {
+      int from_bitField0_ = bitField0_;
+      if (((from_bitField0_ & 0x00000001) != 0)) {
+        result.dataset_ = dataset_;
+      }
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.documentai.v1beta3.ImportDocumentsRequest) {
+        return mergeFrom((com.google.cloud.documentai.v1beta3.ImportDocumentsRequest) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.documentai.v1beta3.ImportDocumentsRequest other) {
+      if (other == com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.getDefaultInstance())
+        return this;
+      if (!other.getDataset().isEmpty()) {
+        dataset_ = other.dataset_;
+        bitField0_ |= 0x00000001;
+        onChanged();
+      }
+      if (batchDocumentsImportConfigsBuilder_ == null) {
+        if (!other.batchDocumentsImportConfigs_.isEmpty()) {
+          if (batchDocumentsImportConfigs_.isEmpty()) {
+            batchDocumentsImportConfigs_ = other.batchDocumentsImportConfigs_;
+            bitField0_ = (bitField0_ & ~0x00000002);
+          } else {
+            ensureBatchDocumentsImportConfigsIsMutable();
+            batchDocumentsImportConfigs_.addAll(other.batchDocumentsImportConfigs_);
+          }
+          onChanged();
+        }
+      } else {
+        if (!other.batchDocumentsImportConfigs_.isEmpty()) {
+          if (batchDocumentsImportConfigsBuilder_.isEmpty()) {
+            batchDocumentsImportConfigsBuilder_.dispose();
+            batchDocumentsImportConfigsBuilder_ = null;
+            batchDocumentsImportConfigs_ = other.batchDocumentsImportConfigs_;
+            bitField0_ = (bitField0_ & ~0x00000002);
+            batchDocumentsImportConfigsBuilder_ =
+                com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders
+                    ? getBatchDocumentsImportConfigsFieldBuilder()
+                    : null;
+          } else {
+            batchDocumentsImportConfigsBuilder_.addAllMessages(other.batchDocumentsImportConfigs_);
+          }
+        }
+      }
+      this.mergeUnknownFields(other.getUnknownFields());
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
+      try {
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 10:
+              {
+                dataset_ = input.readStringRequireUtf8();
+                bitField0_ |= 0x00000001;
+                break;
+              } // case 10
+            case 34:
+              {
+                com.google.cloud.documentai.v1beta3.ImportDocumentsRequest
+                        .BatchDocumentsImportConfig
+                    m =
+                        input.readMessage(
+                            com.google.cloud.documentai.v1beta3.ImportDocumentsRequest
+                                .BatchDocumentsImportConfig.parser(),
+                            extensionRegistry);
+                if (batchDocumentsImportConfigsBuilder_ == null) {
+                  ensureBatchDocumentsImportConfigsIsMutable();
+                  batchDocumentsImportConfigs_.add(m);
+                } else {
+                  batchDocumentsImportConfigsBuilder_.addMessage(m);
+                }
+                break;
+              } // case 34
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        throw e.unwrapIOException();
+      } finally {
+        onChanged();
+      } // finally
+      return this;
+    }
+
+    private int bitField0_;
+
+    private java.lang.Object dataset_ = "";
+    /**
+     *
+     *
+     * 
+     * Required. The dataset resource name.
+     * Format:
+     * projects/{project}/locations/{location}/processors/{processor}/dataset
+     * 

+     *
+     * 
+     * string dataset = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * 
+     *
+     * @return The dataset.
+     */
+    public java.lang.String getDataset() {
+      java.lang.Object ref = dataset_;
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        dataset_ = s;
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The dataset resource name.
+     * Format:
+     * projects/{project}/locations/{location}/processors/{processor}/dataset
+     * 

+     *
+     * 
+     * string dataset = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * 
+     *
+     * @return The bytes for dataset.
+     */
+    public com.google.protobuf.ByteString getDatasetBytes() {
+      java.lang.Object ref = dataset_;
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        dataset_ = b;
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The dataset resource name.
+     * Format:
+     * projects/{project}/locations/{location}/processors/{processor}/dataset
+     * 

+     *
+     * 
+     * string dataset = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * 
+     *
+     * @param value The dataset to set.
+     * @return This builder for chaining.
+     */
+    public Builder setDataset(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      dataset_ = value;
+      bitField0_ |= 0x00000001;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The dataset resource name.
+     * Format:
+     * projects/{project}/locations/{location}/processors/{processor}/dataset
+     * 

+     *
+     * 
+     * string dataset = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * 
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearDataset() {
+      dataset_ = getDefaultInstance().getDataset();
+      bitField0_ = (bitField0_ & ~0x00000001);
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The dataset resource name.
+     * Format:
+     * projects/{project}/locations/{location}/processors/{processor}/dataset
+     * 

+     *
+     * 
+     * string dataset = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+     * 
+     *
+     * @param value The bytes for dataset to set.
+     * @return This builder for chaining.
+     */
+    public Builder setDatasetBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+      dataset_ = value;
+      bitField0_ |= 0x00000001;
+      onChanged();
+      return this;
+    }
+
+    private java.util.List<
+            com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig>
+        batchDocumentsImportConfigs_ = java.util.Collections.emptyList();
+
+    private void ensureBatchDocumentsImportConfigsIsMutable() {
+      if (!((bitField0_ & 0x00000002) != 0)) {
+        batchDocumentsImportConfigs_ =
+            new java.util.ArrayList<
+                com.google.cloud.documentai.v1beta3.ImportDocumentsRequest
+                    .BatchDocumentsImportConfig>(batchDocumentsImportConfigs_);
+        bitField0_ |= 0x00000002;
+      }
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig,
+            com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig
+                .Builder,
+            com.google.cloud.documentai.v1beta3.ImportDocumentsRequest
+                .BatchDocumentsImportConfigOrBuilder>
+        batchDocumentsImportConfigsBuilder_;
+
+    /**
+     *
+     *
+     * 
+     * Required. The Cloud Storage uri containing raw documents that must be
+     * imported.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig batch_documents_import_configs = 4 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    public java.util.List<
+            com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig>
+        getBatchDocumentsImportConfigsList() {
+      if (batchDocumentsImportConfigsBuilder_ == null) {
+        return java.util.Collections.unmodifiableList(batchDocumentsImportConfigs_);
+      } else {
+        return batchDocumentsImportConfigsBuilder_.getMessageList();
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The Cloud Storage uri containing raw documents that must be
+     * imported.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig batch_documents_import_configs = 4 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    public int getBatchDocumentsImportConfigsCount() {
+      if (batchDocumentsImportConfigsBuilder_ == null) {
+        return batchDocumentsImportConfigs_.size();
+      } else {
+        return batchDocumentsImportConfigsBuilder_.getCount();
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The Cloud Storage uri containing raw documents that must be
+     * imported.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig batch_documents_import_configs = 4 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    public com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig
+        getBatchDocumentsImportConfigs(int index) {
+      if (batchDocumentsImportConfigsBuilder_ == null) {
+        return batchDocumentsImportConfigs_.get(index);
+      } else {
+        return batchDocumentsImportConfigsBuilder_.getMessage(index);
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The Cloud Storage uri containing raw documents that must be
+     * imported.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig batch_documents_import_configs = 4 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    public Builder setBatchDocumentsImportConfigs(
+        int index,
+        com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig
+            value) {
+      if (batchDocumentsImportConfigsBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureBatchDocumentsImportConfigsIsMutable();
+        batchDocumentsImportConfigs_.set(index, value);
+        onChanged();
+      } else {
+        batchDocumentsImportConfigsBuilder_.setMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The Cloud Storage uri containing raw documents that must be
+     * imported.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig batch_documents_import_configs = 4 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    public Builder setBatchDocumentsImportConfigs(
+        int index,
+        com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig
+                .Builder
+            builderForValue) {
+      if (batchDocumentsImportConfigsBuilder_ == null) {
+        ensureBatchDocumentsImportConfigsIsMutable();
+        batchDocumentsImportConfigs_.set(index, builderForValue.build());
+        onChanged();
+      } else {
+        batchDocumentsImportConfigsBuilder_.setMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The Cloud Storage uri containing raw documents that must be
+     * imported.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig batch_documents_import_configs = 4 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    public Builder addBatchDocumentsImportConfigs(
+        com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig
+            value) {
+      if (batchDocumentsImportConfigsBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureBatchDocumentsImportConfigsIsMutable();
+        batchDocumentsImportConfigs_.add(value);
+        onChanged();
+      } else {
+        batchDocumentsImportConfigsBuilder_.addMessage(value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The Cloud Storage uri containing raw documents that must be
+     * imported.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig batch_documents_import_configs = 4 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    public Builder addBatchDocumentsImportConfigs(
+        int index,
+        com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig
+            value) {
+      if (batchDocumentsImportConfigsBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        ensureBatchDocumentsImportConfigsIsMutable();
+        batchDocumentsImportConfigs_.add(index, value);
+        onChanged();
+      } else {
+        batchDocumentsImportConfigsBuilder_.addMessage(index, value);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The Cloud Storage uri containing raw documents that must be
+     * imported.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig batch_documents_import_configs = 4 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    public Builder addBatchDocumentsImportConfigs(
+        com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig
+                .Builder
+            builderForValue) {
+      if (batchDocumentsImportConfigsBuilder_ == null) {
+        ensureBatchDocumentsImportConfigsIsMutable();
+        batchDocumentsImportConfigs_.add(builderForValue.build());
+        onChanged();
+      } else {
+        batchDocumentsImportConfigsBuilder_.addMessage(builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The Cloud Storage uri containing raw documents that must be
+     * imported.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig batch_documents_import_configs = 4 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    public Builder addBatchDocumentsImportConfigs(
+        int index,
+        com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig
+                .Builder
+            builderForValue) {
+      if (batchDocumentsImportConfigsBuilder_ == null) {
+        ensureBatchDocumentsImportConfigsIsMutable();
+        batchDocumentsImportConfigs_.add(index, builderForValue.build());
+        onChanged();
+      } else {
+        batchDocumentsImportConfigsBuilder_.addMessage(index, builderForValue.build());
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The Cloud Storage uri containing raw documents that must be
+     * imported.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig batch_documents_import_configs = 4 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    public Builder addAllBatchDocumentsImportConfigs(
+        java.lang.Iterable<
+                ? extends
+                    com.google.cloud.documentai.v1beta3.ImportDocumentsRequest
+                        .BatchDocumentsImportConfig>
+            values) {
+      if (batchDocumentsImportConfigsBuilder_ == null) {
+        ensureBatchDocumentsImportConfigsIsMutable();
+        com.google.protobuf.AbstractMessageLite.Builder.addAll(
+            values, batchDocumentsImportConfigs_);
+        onChanged();
+      } else {
+        batchDocumentsImportConfigsBuilder_.addAllMessages(values);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The Cloud Storage uri containing raw documents that must be
+     * imported.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig batch_documents_import_configs = 4 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    public Builder clearBatchDocumentsImportConfigs() {
+      if (batchDocumentsImportConfigsBuilder_ == null) {
+        batchDocumentsImportConfigs_ = java.util.Collections.emptyList();
+        bitField0_ = (bitField0_ & ~0x00000002);
+        onChanged();
+      } else {
+        batchDocumentsImportConfigsBuilder_.clear();
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The Cloud Storage uri containing raw documents that must be
+     * imported.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig batch_documents_import_configs = 4 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    public Builder removeBatchDocumentsImportConfigs(int index) {
+      if (batchDocumentsImportConfigsBuilder_ == null) {
+        ensureBatchDocumentsImportConfigsIsMutable();
+        batchDocumentsImportConfigs_.remove(index);
+        onChanged();
+      } else {
+        batchDocumentsImportConfigsBuilder_.remove(index);
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The Cloud Storage uri containing raw documents that must be
+     * imported.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig batch_documents_import_configs = 4 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    public com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig
+            .Builder
+        getBatchDocumentsImportConfigsBuilder(int index) {
+      return getBatchDocumentsImportConfigsFieldBuilder().getBuilder(index);
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The Cloud Storage uri containing raw documents that must be
+     * imported.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig batch_documents_import_configs = 4 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    public com.google.cloud.documentai.v1beta3.ImportDocumentsRequest
+            .BatchDocumentsImportConfigOrBuilder
+        getBatchDocumentsImportConfigsOrBuilder(int index) {
+      if (batchDocumentsImportConfigsBuilder_ == null) {
+        return batchDocumentsImportConfigs_.get(index);
+      } else {
+        return batchDocumentsImportConfigsBuilder_.getMessageOrBuilder(index);
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The Cloud Storage uri containing raw documents that must be
+     * imported.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig batch_documents_import_configs = 4 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    public java.util.List<
+            ? extends
+                com.google.cloud.documentai.v1beta3.ImportDocumentsRequest
+                    .BatchDocumentsImportConfigOrBuilder>
+        getBatchDocumentsImportConfigsOrBuilderList() {
+      if (batchDocumentsImportConfigsBuilder_ != null) {
+        return batchDocumentsImportConfigsBuilder_.getMessageOrBuilderList();
+      } else {
+        return java.util.Collections.unmodifiableList(batchDocumentsImportConfigs_);
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The Cloud Storage uri containing raw documents that must be
+     * imported.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig batch_documents_import_configs = 4 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    public com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig
+            .Builder
+        addBatchDocumentsImportConfigsBuilder() {
+      return getBatchDocumentsImportConfigsFieldBuilder()
+          .addBuilder(
+              com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig
+                  .getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The Cloud Storage uri containing raw documents that must be
+     * imported.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig batch_documents_import_configs = 4 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    public com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig
+            .Builder
+        addBatchDocumentsImportConfigsBuilder(int index) {
+      return getBatchDocumentsImportConfigsFieldBuilder()
+          .addBuilder(
+              index,
+              com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig
+                  .getDefaultInstance());
+    }
+    /**
+     *
+     *
+     * 
+     * Required. The Cloud Storage uri containing raw documents that must be
+     * imported.
+     * 

+     *
+     * 
+     * repeated .google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig batch_documents_import_configs = 4 [(.google.api.field_behavior) = REQUIRED];
+     * 
+     */
+    public java.util.List<
+            com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig
+                .Builder>
+        getBatchDocumentsImportConfigsBuilderList() {
+      return getBatchDocumentsImportConfigsFieldBuilder().getBuilderList();
+    }
+
+    private com.google.protobuf.RepeatedFieldBuilderV3<
+            com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig,
+            com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig
+                .Builder,
+            com.google.cloud.documentai.v1beta3.ImportDocumentsRequest
+                .BatchDocumentsImportConfigOrBuilder>
+        getBatchDocumentsImportConfigsFieldBuilder() {
+      if (batchDocumentsImportConfigsBuilder_ == null) {
+        batchDocumentsImportConfigsBuilder_ =
+            new com.google.protobuf.RepeatedFieldBuilderV3<
+                com.google.cloud.documentai.v1beta3.ImportDocumentsRequest
+                    .BatchDocumentsImportConfig,
+                com.google.cloud.documentai.v1beta3.ImportDocumentsRequest
+                    .BatchDocumentsImportConfig.Builder,
+                com.google.cloud.documentai.v1beta3.ImportDocumentsRequest
+                    .BatchDocumentsImportConfigOrBuilder>(
+                batchDocumentsImportConfigs_,
+                ((bitField0_ & 0x00000002) != 0),
+                getParentForChildren(),
+                isClean());
+        batchDocumentsImportConfigs_ = null;
+      }
+      return batchDocumentsImportConfigsBuilder_;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.documentai.v1beta3.ImportDocumentsRequest)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.documentai.v1beta3.ImportDocumentsRequest)
+  private static final com.google.cloud.documentai.v1beta3.ImportDocumentsRequest DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.documentai.v1beta3.ImportDocumentsRequest();
+  }
+
+  public static com.google.cloud.documentai.v1beta3.ImportDocumentsRequest getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser PARSER =
+      new com.google.protobuf.AbstractParser() {
+        @java.lang.Override
+        public ImportDocumentsRequest parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
+        }
+      };
+
+  public static com.google.protobuf.Parser parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.documentai.v1beta3.ImportDocumentsRequest getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/ImportDocumentsRequestOrBuilder.java b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/ImportDocumentsRequestOrBuilder.java
new file mode 100644
index 000000000000..70bfb36df756
--- /dev/null
+++ b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/ImportDocumentsRequestOrBuilder.java
@@ -0,0 +1,132 @@
+/*
+ * Copyright 2023 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/documentai/v1beta3/document_service.proto
+
+package com.google.cloud.documentai.v1beta3;
+
+public interface ImportDocumentsRequestOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.documentai.v1beta3.ImportDocumentsRequest)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * 
+   * Required. The dataset resource name.
+   * Format:
+   * projects/{project}/locations/{location}/processors/{processor}/dataset
+   * 

+   *
+   * 
+   * string dataset = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * 
+   *
+   * @return The dataset.
+   */
+  java.lang.String getDataset();
+  /**
+   *
+   *
+   * 
+   * Required. The dataset resource name.
+   * Format:
+   * projects/{project}/locations/{location}/processors/{processor}/dataset
+   * 

+   *
+   * 
+   * string dataset = 1 [(.google.api.field_behavior) = REQUIRED, (.google.api.resource_reference) = { ... }
+   * 
+   *
+   * @return The bytes for dataset.
+   */
+  com.google.protobuf.ByteString getDatasetBytes();
+
+  /**
+   *
+   *
+   * 
+   * Required. The Cloud Storage uri containing raw documents that must be
+   * imported.
+   * 

+   *
+   * 
+   * repeated .google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig batch_documents_import_configs = 4 [(.google.api.field_behavior) = REQUIRED];
+   * 
+   */
+  java.util.List<
+          com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig>
+      getBatchDocumentsImportConfigsList();
+  /**
+   *
+   *
+   * 
+   * Required. The Cloud Storage uri containing raw documents that must be
+   * imported.
+   * 

+   *
+   * 
+   * repeated .google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig batch_documents_import_configs = 4 [(.google.api.field_behavior) = REQUIRED];
+   * 
+   */
+  com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig
+      getBatchDocumentsImportConfigs(int index);
+  /**
+   *
+   *
+   * 
+   * Required. The Cloud Storage uri containing raw documents that must be
+   * imported.
+   * 

+   *
+   * 
+   * repeated .google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig batch_documents_import_configs = 4 [(.google.api.field_behavior) = REQUIRED];
+   * 
+   */
+  int getBatchDocumentsImportConfigsCount();
+  /**
+   *
+   *
+   * 
+   * Required. The Cloud Storage uri containing raw documents that must be
+   * imported.
+   * 

+   *
+   * 
+   * repeated .google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig batch_documents_import_configs = 4 [(.google.api.field_behavior) = REQUIRED];
+   * 
+   */
+  java.util.List<
+          ? extends
+              com.google.cloud.documentai.v1beta3.ImportDocumentsRequest
+                  .BatchDocumentsImportConfigOrBuilder>
+      getBatchDocumentsImportConfigsOrBuilderList();
+  /**
+   *
+   *
+   * 
+   * Required. The Cloud Storage uri containing raw documents that must be
+   * imported.
+   * 

+   *
+   * 
+   * repeated .google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfig batch_documents_import_configs = 4 [(.google.api.field_behavior) = REQUIRED];
+   * 
+   */
+  com.google.cloud.documentai.v1beta3.ImportDocumentsRequest.BatchDocumentsImportConfigOrBuilder
+      getBatchDocumentsImportConfigsOrBuilder(int index);
+}
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/ImportDocumentsResponse.java b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/ImportDocumentsResponse.java
new file mode 100644
index 000000000000..16516c9bfa25
--- /dev/null
+++ b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/ImportDocumentsResponse.java
@@ -0,0 +1,432 @@
+/*
+ * Copyright 2023 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/documentai/v1beta3/document_service.proto
+
+package com.google.cloud.documentai.v1beta3;
+
+/**
+ *
+ *
+ * 
+ * Response of the import document operation.
+ * 

+ *
+ * Protobuf type {@code google.cloud.documentai.v1beta3.ImportDocumentsResponse}
+ */
+public final class ImportDocumentsResponse extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.documentai.v1beta3.ImportDocumentsResponse)
+    ImportDocumentsResponseOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use ImportDocumentsResponse.newBuilder() to construct.
+  private ImportDocumentsResponse(com.google.protobuf.GeneratedMessageV3.Builder builder) {
+    super(builder);
+  }
+
+  private ImportDocumentsResponse() {}
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new ImportDocumentsResponse();
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.documentai.v1beta3.DocumentAiDocumentService
+        .internal_static_google_cloud_documentai_v1beta3_ImportDocumentsResponse_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.documentai.v1beta3.DocumentAiDocumentService
+        .internal_static_google_cloud_documentai_v1beta3_ImportDocumentsResponse_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.documentai.v1beta3.ImportDocumentsResponse.class,
+            com.google.cloud.documentai.v1beta3.ImportDocumentsResponse.Builder.class);
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    getUnknownFields().writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    size += getUnknownFields().getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.documentai.v1beta3.ImportDocumentsResponse)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.documentai.v1beta3.ImportDocumentsResponse other =
+        (com.google.cloud.documentai.v1beta3.ImportDocumentsResponse) obj;
+
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
+    return true;
+  }
+
+  @java.lang.Override
+  public int hashCode() {
+    if (memoizedHashCode != 0) {
+      return memoizedHashCode;
+    }
+    int hash = 41;
+    hash = (19 * hash) + getDescriptor().hashCode();
+    hash = (29 * hash) + getUnknownFields().hashCode();
+    memoizedHashCode = hash;
+    return hash;
+  }
+
+  public static com.google.cloud.documentai.v1beta3.ImportDocumentsResponse parseFrom(
+      java.nio.ByteBuffer data) throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.ImportDocumentsResponse parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.ImportDocumentsResponse parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.ImportDocumentsResponse parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.ImportDocumentsResponse parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.ImportDocumentsResponse parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.ImportDocumentsResponse parseFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.ImportDocumentsResponse parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.ImportDocumentsResponse parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.ImportDocumentsResponse parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.ImportDocumentsResponse parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.ImportDocumentsResponse parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(
+      com.google.cloud.documentai.v1beta3.ImportDocumentsResponse prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * 
+   * Response of the import document operation.
+   * 

+   *
+   * Protobuf type {@code google.cloud.documentai.v1beta3.ImportDocumentsResponse}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.documentai.v1beta3.ImportDocumentsResponse)
+      com.google.cloud.documentai.v1beta3.ImportDocumentsResponseOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.documentai.v1beta3.DocumentAiDocumentService
+          .internal_static_google_cloud_documentai_v1beta3_ImportDocumentsResponse_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.documentai.v1beta3.DocumentAiDocumentService
+          .internal_static_google_cloud_documentai_v1beta3_ImportDocumentsResponse_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.documentai.v1beta3.ImportDocumentsResponse.class,
+              com.google.cloud.documentai.v1beta3.ImportDocumentsResponse.Builder.class);
+    }
+
+    // Construct using com.google.cloud.documentai.v1beta3.ImportDocumentsResponse.newBuilder()
+    private Builder() {}
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.documentai.v1beta3.DocumentAiDocumentService
+          .internal_static_google_cloud_documentai_v1beta3_ImportDocumentsResponse_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta3.ImportDocumentsResponse getDefaultInstanceForType() {
+      return com.google.cloud.documentai.v1beta3.ImportDocumentsResponse.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta3.ImportDocumentsResponse build() {
+      com.google.cloud.documentai.v1beta3.ImportDocumentsResponse result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta3.ImportDocumentsResponse buildPartial() {
+      com.google.cloud.documentai.v1beta3.ImportDocumentsResponse result =
+          new com.google.cloud.documentai.v1beta3.ImportDocumentsResponse(this);
+      onBuilt();
+      return result;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.documentai.v1beta3.ImportDocumentsResponse) {
+        return mergeFrom((com.google.cloud.documentai.v1beta3.ImportDocumentsResponse) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.documentai.v1beta3.ImportDocumentsResponse other) {
+      if (other == com.google.cloud.documentai.v1beta3.ImportDocumentsResponse.getDefaultInstance())
+        return this;
+      this.mergeUnknownFields(other.getUnknownFields());
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
+      try {
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
+                }
+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        throw e.unwrapIOException();
+      } finally {
+        onChanged();
+      } // finally
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.documentai.v1beta3.ImportDocumentsResponse)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.documentai.v1beta3.ImportDocumentsResponse)
+  private static final com.google.cloud.documentai.v1beta3.ImportDocumentsResponse DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.documentai.v1beta3.ImportDocumentsResponse();
+  }
+
+  public static com.google.cloud.documentai.v1beta3.ImportDocumentsResponse getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser PARSER =
+      new com.google.protobuf.AbstractParser() {
+        @java.lang.Override
+        public ImportDocumentsResponse parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
+        }
+      };
+
+  public static com.google.protobuf.Parser parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.documentai.v1beta3.ImportDocumentsResponse getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/ImportDocumentsResponseOrBuilder.java b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/ImportDocumentsResponseOrBuilder.java
new file mode 100644
index 000000000000..7b3f4bd391b5
--- /dev/null
+++ b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/ImportDocumentsResponseOrBuilder.java
@@ -0,0 +1,24 @@
+/*
+ * Copyright 2023 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/documentai/v1beta3/document_service.proto
+
+package com.google.cloud.documentai.v1beta3;
+
+public interface ImportDocumentsResponseOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.documentai.v1beta3.ImportDocumentsResponse)
+    com.google.protobuf.MessageOrBuilder {}
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/ProcessRequest.java b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/ProcessRequest.java
index 14ba0c943530..f943e5ac0034 100644
--- a/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/ProcessRequest.java
+++ b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/ProcessRequest.java
@@ -75,6 +75,7 @@ public enum SourceCase
           com.google.protobuf.AbstractMessage.InternalOneOfEnum {
     INLINE_DOCUMENT(4),
     RAW_DOCUMENT(5),
+    GCS_DOCUMENT(8),
     SOURCE_NOT_SET(0);
     private final int value;
 
@@ -97,6 +98,8 @@ public static SourceCase forNumber(int value) {
           return INLINE_DOCUMENT;
         case 5:
           return RAW_DOCUMENT;
+        case 8:
+          return GCS_DOCUMENT;
         case 0:
           return SOURCE_NOT_SET;
         default:
@@ -215,6 +218,57 @@ public com.google.cloud.documentai.v1beta3.RawDocumentOrBuilder getRawDocumentOr
     return com.google.cloud.documentai.v1beta3.RawDocument.getDefaultInstance();
   }
 
+  public static final int GCS_DOCUMENT_FIELD_NUMBER = 8;
+  /**
+   *
+   *
+   * 
+   * A raw document on Google Cloud Storage.
+   * 

+   *
+   * .google.cloud.documentai.v1beta3.GcsDocument gcs_document = 8;
+   *
+   * @return Whether the gcsDocument field is set.
+   */
+  @java.lang.Override
+  public boolean hasGcsDocument() {
+    return sourceCase_ == 8;
+  }
+  /**
+   *
+   *
+   * 
+   * A raw document on Google Cloud Storage.
+   * 

+   *
+   * .google.cloud.documentai.v1beta3.GcsDocument gcs_document = 8;
+   *
+   * @return The gcsDocument.
+   */
+  @java.lang.Override
+  public com.google.cloud.documentai.v1beta3.GcsDocument getGcsDocument() {
+    if (sourceCase_ == 8) {
+      return (com.google.cloud.documentai.v1beta3.GcsDocument) source_;
+    }
+    return com.google.cloud.documentai.v1beta3.GcsDocument.getDefaultInstance();
+  }
+  /**
+   *
+   *
+   * 
+   * A raw document on Google Cloud Storage.
+   * 

+   *
+   * .google.cloud.documentai.v1beta3.GcsDocument gcs_document = 8;
+   */
+  @java.lang.Override
+  public com.google.cloud.documentai.v1beta3.GcsDocumentOrBuilder getGcsDocumentOrBuilder() {
+    if (sourceCase_ == 8) {
+      return (com.google.cloud.documentai.v1beta3.GcsDocument) source_;
+    }
+    return com.google.cloud.documentai.v1beta3.GcsDocument.getDefaultInstance();
+  }
+
   public static final int NAME_FIELD_NUMBER = 1;
 
   @SuppressWarnings("serial")
@@ -303,7 +357,7 @@ public com.google.protobuf.ByteString getNameBytes() {
    * .google.cloud.documentai.v1beta3.Document document = 2 [deprecated = true];
    *
    * @deprecated google.cloud.documentai.v1beta3.ProcessRequest.document is deprecated. See
-   *     google/cloud/documentai/v1beta3/document_processor_service.proto;l=381
+   *     google/cloud/documentai/v1beta3/document_processor_service.proto;l=384
    * @return Whether the document field is set.
    */
   @java.lang.Override
@@ -324,7 +378,7 @@ public boolean hasDocument() {
    * .google.cloud.documentai.v1beta3.Document document = 2 [deprecated = true];
    *
    * @deprecated google.cloud.documentai.v1beta3.ProcessRequest.document is deprecated. See
-   *     google/cloud/documentai/v1beta3/document_processor_service.proto;l=381
+   *     google/cloud/documentai/v1beta3/document_processor_service.proto;l=384
    * @return The document.
    */
   @java.lang.Override
@@ -513,6 +567,9 @@ public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io
     if (processOptions_ != null) {
       output.writeMessage(7, getProcessOptions());
     }
+    if (sourceCase_ == 8) {
+      output.writeMessage(8, (com.google.cloud.documentai.v1beta3.GcsDocument) source_);
+    }
     getUnknownFields().writeTo(output);
   }
 
@@ -547,6 +604,11 @@ public int getSerializedSize() {
     if (processOptions_ != null) {
       size += com.google.protobuf.CodedOutputStream.computeMessageSize(7, getProcessOptions());
     }
+    if (sourceCase_ == 8) {
+      size +=
+          com.google.protobuf.CodedOutputStream.computeMessageSize(
+              8, (com.google.cloud.documentai.v1beta3.GcsDocument) source_);
+    }
     size += getUnknownFields().getSerializedSize();
     memoizedSize = size;
     return size;
@@ -585,6 +647,9 @@ public boolean equals(final java.lang.Object obj) {
       case 5:
         if (!getRawDocument().equals(other.getRawDocument())) return false;
         break;
+      case 8:
+        if (!getGcsDocument().equals(other.getGcsDocument())) return false;
+        break;
       case 0:
       default:
     }
@@ -624,6 +689,10 @@ public int hashCode() {
         hash = (37 * hash) + RAW_DOCUMENT_FIELD_NUMBER;
         hash = (53 * hash) + getRawDocument().hashCode();
         break;
+      case 8:
+        hash = (37 * hash) + GCS_DOCUMENT_FIELD_NUMBER;
+        hash = (53 * hash) + getGcsDocument().hashCode();
+        break;
       case 0:
       default:
     }
@@ -774,6 +843,9 @@ public Builder clear() {
       if (rawDocumentBuilder_ != null) {
         rawDocumentBuilder_.clear();
       }
+      if (gcsDocumentBuilder_ != null) {
+        gcsDocumentBuilder_.clear();
+      }
       name_ = "";
       document_ = null;
       if (documentBuilder_ != null) {
@@ -830,19 +902,19 @@ public com.google.cloud.documentai.v1beta3.ProcessRequest buildPartial() {
 
     private void buildPartial0(com.google.cloud.documentai.v1beta3.ProcessRequest result) {
       int from_bitField0_ = bitField0_;
-      if (((from_bitField0_ & 0x00000004) != 0)) {
+      if (((from_bitField0_ & 0x00000008) != 0)) {
         result.name_ = name_;
       }
-      if (((from_bitField0_ & 0x00000008) != 0)) {
+      if (((from_bitField0_ & 0x00000010) != 0)) {
         result.document_ = documentBuilder_ == null ? document_ : documentBuilder_.build();
       }
-      if (((from_bitField0_ & 0x00000010) != 0)) {
+      if (((from_bitField0_ & 0x00000020) != 0)) {
         result.skipHumanReview_ = skipHumanReview_;
       }
-      if (((from_bitField0_ & 0x00000020) != 0)) {
+      if (((from_bitField0_ & 0x00000040) != 0)) {
         result.fieldMask_ = fieldMaskBuilder_ == null ? fieldMask_ : fieldMaskBuilder_.build();
       }
-      if (((from_bitField0_ & 0x00000040) != 0)) {
+      if (((from_bitField0_ & 0x00000080) != 0)) {
         result.processOptions_ =
             processOptionsBuilder_ == null ? processOptions_ : processOptionsBuilder_.build();
       }
@@ -857,6 +929,9 @@ private void buildPartialOneofs(com.google.cloud.documentai.v1beta3.ProcessReque
       if (sourceCase_ == 5 && rawDocumentBuilder_ != null) {
         result.source_ = rawDocumentBuilder_.build();
       }
+      if (sourceCase_ == 8 && gcsDocumentBuilder_ != null) {
+        result.source_ = gcsDocumentBuilder_.build();
+      }
     }
 
     @java.lang.Override
@@ -907,7 +982,7 @@ public Builder mergeFrom(com.google.cloud.documentai.v1beta3.ProcessRequest othe
         return this;
       if (!other.getName().isEmpty()) {
         name_ = other.name_;
-        bitField0_ |= 0x00000004;
+        bitField0_ |= 0x00000008;
         onChanged();
       }
       if (other.hasDocument()) {
@@ -933,6 +1008,11 @@ public Builder mergeFrom(com.google.cloud.documentai.v1beta3.ProcessRequest othe
             mergeRawDocument(other.getRawDocument());
             break;
           }
+        case GCS_DOCUMENT:
+          {
+            mergeGcsDocument(other.getGcsDocument());
+            break;
+          }
         case SOURCE_NOT_SET:
           {
             break;
@@ -967,19 +1047,19 @@ public Builder mergeFrom(
             case 10:
               {
                 name_ = input.readStringRequireUtf8();
-                bitField0_ |= 0x00000004;
+                bitField0_ |= 0x00000008;
                 break;
               } // case 10
             case 18:
               {
                 input.readMessage(getDocumentFieldBuilder().getBuilder(), extensionRegistry);
-                bitField0_ |= 0x00000008;
+                bitField0_ |= 0x00000010;
                 break;
               } // case 18
             case 24:
               {
                 skipHumanReview_ = input.readBool();
-                bitField0_ |= 0x00000010;
+                bitField0_ |= 0x00000020;
                 break;
               } // case 24
             case 34:
@@ -997,15 +1077,21 @@ public Builder mergeFrom(
             case 50:
               {
                 input.readMessage(getFieldMaskFieldBuilder().getBuilder(), extensionRegistry);
-                bitField0_ |= 0x00000020;
+                bitField0_ |= 0x00000040;
                 break;
               } // case 50
             case 58:
               {
                 input.readMessage(getProcessOptionsFieldBuilder().getBuilder(), extensionRegistry);
-                bitField0_ |= 0x00000040;
+                bitField0_ |= 0x00000080;
                 break;
               } // case 58
+            case 66:
+              {
+                input.readMessage(getGcsDocumentFieldBuilder().getBuilder(), extensionRegistry);
+                sourceCase_ = 8;
+                break;
+              } // case 66
             default:
               {
                 if (!super.parseUnknownField(input, extensionRegistry, tag)) {
@@ -1457,6 +1543,215 @@ public com.google.cloud.documentai.v1beta3.RawDocumentOrBuilder getRawDocumentOr
       return rawDocumentBuilder_;
     }
 
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.documentai.v1beta3.GcsDocument,
+            com.google.cloud.documentai.v1beta3.GcsDocument.Builder,
+            com.google.cloud.documentai.v1beta3.GcsDocumentOrBuilder>
+        gcsDocumentBuilder_;
+    /**
+     *
+     *
+     * 
+     * A raw document on Google Cloud Storage.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.GcsDocument gcs_document = 8;
+     *
+     * @return Whether the gcsDocument field is set.
+     */
+    @java.lang.Override
+    public boolean hasGcsDocument() {
+      return sourceCase_ == 8;
+    }
+    /**
+     *
+     *
+     * 
+     * A raw document on Google Cloud Storage.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.GcsDocument gcs_document = 8;
+     *
+     * @return The gcsDocument.
+     */
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta3.GcsDocument getGcsDocument() {
+      if (gcsDocumentBuilder_ == null) {
+        if (sourceCase_ == 8) {
+          return (com.google.cloud.documentai.v1beta3.GcsDocument) source_;
+        }
+        return com.google.cloud.documentai.v1beta3.GcsDocument.getDefaultInstance();
+      } else {
+        if (sourceCase_ == 8) {
+          return gcsDocumentBuilder_.getMessage();
+        }
+        return com.google.cloud.documentai.v1beta3.GcsDocument.getDefaultInstance();
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * A raw document on Google Cloud Storage.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.GcsDocument gcs_document = 8;
+     */
+    public Builder setGcsDocument(com.google.cloud.documentai.v1beta3.GcsDocument value) {
+      if (gcsDocumentBuilder_ == null) {
+        if (value == null) {
+          throw new NullPointerException();
+        }
+        source_ = value;
+        onChanged();
+      } else {
+        gcsDocumentBuilder_.setMessage(value);
+      }
+      sourceCase_ = 8;
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * A raw document on Google Cloud Storage.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.GcsDocument gcs_document = 8;
+     */
+    public Builder setGcsDocument(
+        com.google.cloud.documentai.v1beta3.GcsDocument.Builder builderForValue) {
+      if (gcsDocumentBuilder_ == null) {
+        source_ = builderForValue.build();
+        onChanged();
+      } else {
+        gcsDocumentBuilder_.setMessage(builderForValue.build());
+      }
+      sourceCase_ = 8;
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * A raw document on Google Cloud Storage.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.GcsDocument gcs_document = 8;
+     */
+    public Builder mergeGcsDocument(com.google.cloud.documentai.v1beta3.GcsDocument value) {
+      if (gcsDocumentBuilder_ == null) {
+        if (sourceCase_ == 8
+            && source_ != com.google.cloud.documentai.v1beta3.GcsDocument.getDefaultInstance()) {
+          source_ =
+              com.google.cloud.documentai.v1beta3.GcsDocument.newBuilder(
+                      (com.google.cloud.documentai.v1beta3.GcsDocument) source_)
+                  .mergeFrom(value)
+                  .buildPartial();
+        } else {
+          source_ = value;
+        }
+        onChanged();
+      } else {
+        if (sourceCase_ == 8) {
+          gcsDocumentBuilder_.mergeFrom(value);
+        } else {
+          gcsDocumentBuilder_.setMessage(value);
+        }
+      }
+      sourceCase_ = 8;
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * A raw document on Google Cloud Storage.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.GcsDocument gcs_document = 8;
+     */
+    public Builder clearGcsDocument() {
+      if (gcsDocumentBuilder_ == null) {
+        if (sourceCase_ == 8) {
+          sourceCase_ = 0;
+          source_ = null;
+          onChanged();
+        }
+      } else {
+        if (sourceCase_ == 8) {
+          sourceCase_ = 0;
+          source_ = null;
+        }
+        gcsDocumentBuilder_.clear();
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * A raw document on Google Cloud Storage.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.GcsDocument gcs_document = 8;
+     */
+    public com.google.cloud.documentai.v1beta3.GcsDocument.Builder getGcsDocumentBuilder() {
+      return getGcsDocumentFieldBuilder().getBuilder();
+    }
+    /**
+     *
+     *
+     * 
+     * A raw document on Google Cloud Storage.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.GcsDocument gcs_document = 8;
+     */
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta3.GcsDocumentOrBuilder getGcsDocumentOrBuilder() {
+      if ((sourceCase_ == 8) && (gcsDocumentBuilder_ != null)) {
+        return gcsDocumentBuilder_.getMessageOrBuilder();
+      } else {
+        if (sourceCase_ == 8) {
+          return (com.google.cloud.documentai.v1beta3.GcsDocument) source_;
+        }
+        return com.google.cloud.documentai.v1beta3.GcsDocument.getDefaultInstance();
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * A raw document on Google Cloud Storage.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.GcsDocument gcs_document = 8;
+     */
+    private com.google.protobuf.SingleFieldBuilderV3<
+            com.google.cloud.documentai.v1beta3.GcsDocument,
+            com.google.cloud.documentai.v1beta3.GcsDocument.Builder,
+            com.google.cloud.documentai.v1beta3.GcsDocumentOrBuilder>
+        getGcsDocumentFieldBuilder() {
+      if (gcsDocumentBuilder_ == null) {
+        if (!(sourceCase_ == 8)) {
+          source_ = com.google.cloud.documentai.v1beta3.GcsDocument.getDefaultInstance();
+        }
+        gcsDocumentBuilder_ =
+            new com.google.protobuf.SingleFieldBuilderV3<
+                com.google.cloud.documentai.v1beta3.GcsDocument,
+                com.google.cloud.documentai.v1beta3.GcsDocument.Builder,
+                com.google.cloud.documentai.v1beta3.GcsDocumentOrBuilder>(
+                (com.google.cloud.documentai.v1beta3.GcsDocument) source_,
+                getParentForChildren(),
+                isClean());
+        source_ = null;
+      }
+      sourceCase_ = 8;
+      onChanged();
+      return gcsDocumentBuilder_;
+    }
+
     private java.lang.Object name_ = "";
     /**
      *
@@ -1552,7 +1847,7 @@ public Builder setName(java.lang.String value) {
         throw new NullPointerException();
       }
       name_ = value;
-      bitField0_ |= 0x00000004;
+      bitField0_ |= 0x00000008;
       onChanged();
       return this;
     }
@@ -1580,7 +1875,7 @@ public Builder setName(java.lang.String value) {
      */
     public Builder clearName() {
       name_ = getDefaultInstance().getName();
-      bitField0_ = (bitField0_ & ~0x00000004);
+      bitField0_ = (bitField0_ & ~0x00000008);
       onChanged();
       return this;
     }
@@ -1613,7 +1908,7 @@ public Builder setNameBytes(com.google.protobuf.ByteString value) {
       }
       checkByteStringIsUtf8(value);
       name_ = value;
-      bitField0_ |= 0x00000004;
+      bitField0_ |= 0x00000008;
       onChanged();
       return this;
     }
@@ -1637,12 +1932,12 @@ public Builder setNameBytes(com.google.protobuf.ByteString value) {
      * .google.cloud.documentai.v1beta3.Document document = 2 [deprecated = true];
      *
      * @deprecated google.cloud.documentai.v1beta3.ProcessRequest.document is deprecated. See
-     *     google/cloud/documentai/v1beta3/document_processor_service.proto;l=381
+     *     google/cloud/documentai/v1beta3/document_processor_service.proto;l=384
      * @return Whether the document field is set.
      */
     @java.lang.Deprecated
     public boolean hasDocument() {
-      return ((bitField0_ & 0x00000008) != 0);
+      return ((bitField0_ & 0x00000010) != 0);
     }
     /**
      *
@@ -1657,7 +1952,7 @@ public boolean hasDocument() {
      * .google.cloud.documentai.v1beta3.Document document = 2 [deprecated = true];
      *
      * @deprecated google.cloud.documentai.v1beta3.ProcessRequest.document is deprecated. See
-     *     google/cloud/documentai/v1beta3/document_processor_service.proto;l=381
+     *     google/cloud/documentai/v1beta3/document_processor_service.proto;l=384
      * @return The document.
      */
     @java.lang.Deprecated
@@ -1692,7 +1987,7 @@ public Builder setDocument(com.google.cloud.documentai.v1beta3.Document value) {
       } else {
         documentBuilder_.setMessage(value);
       }
-      bitField0_ |= 0x00000008;
+      bitField0_ |= 0x00000010;
       onChanged();
       return this;
     }
@@ -1716,7 +2011,7 @@ public Builder setDocument(
       } else {
         documentBuilder_.setMessage(builderForValue.build());
       }
-      bitField0_ |= 0x00000008;
+      bitField0_ |= 0x00000010;
       onChanged();
       return this;
     }
@@ -1735,7 +2030,7 @@ public Builder setDocument(
     @java.lang.Deprecated
     public Builder mergeDocument(com.google.cloud.documentai.v1beta3.Document value) {
       if (documentBuilder_ == null) {
-        if (((bitField0_ & 0x00000008) != 0)
+        if (((bitField0_ & 0x00000010) != 0)
             && document_ != null
             && document_ != com.google.cloud.documentai.v1beta3.Document.getDefaultInstance()) {
           getDocumentBuilder().mergeFrom(value);
@@ -1745,7 +2040,7 @@ public Builder mergeDocument(com.google.cloud.documentai.v1beta3.Document value)
       } else {
         documentBuilder_.mergeFrom(value);
       }
-      bitField0_ |= 0x00000008;
+      bitField0_ |= 0x00000010;
       onChanged();
       return this;
     }
@@ -1763,7 +2058,7 @@ public Builder mergeDocument(com.google.cloud.documentai.v1beta3.Document value)
      */
     @java.lang.Deprecated
     public Builder clearDocument() {
-      bitField0_ = (bitField0_ & ~0x00000008);
+      bitField0_ = (bitField0_ & ~0x00000010);
       document_ = null;
       if (documentBuilder_ != null) {
         documentBuilder_.dispose();
@@ -1786,7 +2081,7 @@ public Builder clearDocument() {
      */
     @java.lang.Deprecated
     public com.google.cloud.documentai.v1beta3.Document.Builder getDocumentBuilder() {
-      bitField0_ |= 0x00000008;
+      bitField0_ |= 0x00000010;
       onChanged();
       return getDocumentFieldBuilder().getBuilder();
     }
@@ -1874,7 +2169,7 @@ public boolean getSkipHumanReview() {
     public Builder setSkipHumanReview(boolean value) {
 
       skipHumanReview_ = value;
-      bitField0_ |= 0x00000010;
+      bitField0_ |= 0x00000020;
       onChanged();
       return this;
     }
@@ -1891,7 +2186,7 @@ public Builder setSkipHumanReview(boolean value) {
      * @return This builder for chaining.
      */
     public Builder clearSkipHumanReview() {
-      bitField0_ = (bitField0_ & ~0x00000010);
+      bitField0_ = (bitField0_ & ~0x00000020);
       skipHumanReview_ = false;
       onChanged();
       return this;
@@ -1918,7 +2213,7 @@ public Builder clearSkipHumanReview() {
      * @return Whether the fieldMask field is set.
      */
     public boolean hasFieldMask() {
-      return ((bitField0_ & 0x00000020) != 0);
+      return ((bitField0_ & 0x00000040) != 0);
     }
     /**
      *
@@ -1962,7 +2257,7 @@ public Builder setFieldMask(com.google.protobuf.FieldMask value) {
       } else {
         fieldMaskBuilder_.setMessage(value);
       }
-      bitField0_ |= 0x00000020;
+      bitField0_ |= 0x00000040;
       onChanged();
       return this;
     }
@@ -1984,7 +2279,7 @@ public Builder setFieldMask(com.google.protobuf.FieldMask.Builder builderForValu
       } else {
         fieldMaskBuilder_.setMessage(builderForValue.build());
       }
-      bitField0_ |= 0x00000020;
+      bitField0_ |= 0x00000040;
       onChanged();
       return this;
     }
@@ -2002,7 +2297,7 @@ public Builder setFieldMask(com.google.protobuf.FieldMask.Builder builderForValu
      */
     public Builder mergeFieldMask(com.google.protobuf.FieldMask value) {
       if (fieldMaskBuilder_ == null) {
-        if (((bitField0_ & 0x00000020) != 0)
+        if (((bitField0_ & 0x00000040) != 0)
             && fieldMask_ != null
             && fieldMask_ != com.google.protobuf.FieldMask.getDefaultInstance()) {
           getFieldMaskBuilder().mergeFrom(value);
@@ -2012,7 +2307,7 @@ public Builder mergeFieldMask(com.google.protobuf.FieldMask value) {
       } else {
         fieldMaskBuilder_.mergeFrom(value);
       }
-      bitField0_ |= 0x00000020;
+      bitField0_ |= 0x00000040;
       onChanged();
       return this;
     }
@@ -2029,7 +2324,7 @@ public Builder mergeFieldMask(com.google.protobuf.FieldMask value) {
      * .google.protobuf.FieldMask field_mask = 6;
      */
     public Builder clearFieldMask() {
-      bitField0_ = (bitField0_ & ~0x00000020);
+      bitField0_ = (bitField0_ & ~0x00000040);
       fieldMask_ = null;
       if (fieldMaskBuilder_ != null) {
         fieldMaskBuilder_.dispose();
@@ -2051,7 +2346,7 @@ public Builder clearFieldMask() {
      * .google.protobuf.FieldMask field_mask = 6;
      */
     public com.google.protobuf.FieldMask.Builder getFieldMaskBuilder() {
-      bitField0_ |= 0x00000020;
+      bitField0_ |= 0x00000040;
       onChanged();
       return getFieldMaskFieldBuilder().getBuilder();
     }
@@ -2121,7 +2416,7 @@ public com.google.protobuf.FieldMaskOrBuilder getFieldMaskOrBuilder() {
      * @return Whether the processOptions field is set.
      */
     public boolean hasProcessOptions() {
-      return ((bitField0_ & 0x00000040) != 0);
+      return ((bitField0_ & 0x00000080) != 0);
     }
     /**
      *
@@ -2161,7 +2456,7 @@ public Builder setProcessOptions(com.google.cloud.documentai.v1beta3.ProcessOpti
       } else {
         processOptionsBuilder_.setMessage(value);
       }
-      bitField0_ |= 0x00000040;
+      bitField0_ |= 0x00000080;
       onChanged();
       return this;
     }
@@ -2181,7 +2476,7 @@ public Builder setProcessOptions(
       } else {
         processOptionsBuilder_.setMessage(builderForValue.build());
       }
-      bitField0_ |= 0x00000040;
+      bitField0_ |= 0x00000080;
       onChanged();
       return this;
     }
@@ -2196,7 +2491,7 @@ public Builder setProcessOptions(
      */
     public Builder mergeProcessOptions(com.google.cloud.documentai.v1beta3.ProcessOptions value) {
       if (processOptionsBuilder_ == null) {
-        if (((bitField0_ & 0x00000040) != 0)
+        if (((bitField0_ & 0x00000080) != 0)
             && processOptions_ != null
             && processOptions_
                 != com.google.cloud.documentai.v1beta3.ProcessOptions.getDefaultInstance()) {
@@ -2207,7 +2502,7 @@ public Builder mergeProcessOptions(com.google.cloud.documentai.v1beta3.ProcessOp
       } else {
         processOptionsBuilder_.mergeFrom(value);
       }
-      bitField0_ |= 0x00000040;
+      bitField0_ |= 0x00000080;
       onChanged();
       return this;
     }
@@ -2221,7 +2516,7 @@ public Builder mergeProcessOptions(com.google.cloud.documentai.v1beta3.ProcessOp
      * .google.cloud.documentai.v1beta3.ProcessOptions process_options = 7;
      */
     public Builder clearProcessOptions() {
-      bitField0_ = (bitField0_ & ~0x00000040);
+      bitField0_ = (bitField0_ & ~0x00000080);
       processOptions_ = null;
       if (processOptionsBuilder_ != null) {
         processOptionsBuilder_.dispose();
@@ -2240,7 +2535,7 @@ public Builder clearProcessOptions() {
      * .google.cloud.documentai.v1beta3.ProcessOptions process_options = 7;
      */
     public com.google.cloud.documentai.v1beta3.ProcessOptions.Builder getProcessOptionsBuilder() {
-      bitField0_ |= 0x00000040;
+      bitField0_ |= 0x00000080;
       onChanged();
       return getProcessOptionsFieldBuilder().getBuilder();
     }
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/ProcessRequestOrBuilder.java b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/ProcessRequestOrBuilder.java
index 0ac071aae075..df596b70a792 100644
--- a/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/ProcessRequestOrBuilder.java
+++ b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/ProcessRequestOrBuilder.java
@@ -93,6 +93,41 @@ public interface ProcessRequestOrBuilder
    */
   com.google.cloud.documentai.v1beta3.RawDocumentOrBuilder getRawDocumentOrBuilder();
 
+  /**
+   *
+   *
+   * 
+   * A raw document on Google Cloud Storage.
+   * 

+   *
+   * .google.cloud.documentai.v1beta3.GcsDocument gcs_document = 8;
+   *
+   * @return Whether the gcsDocument field is set.
+   */
+  boolean hasGcsDocument();
+  /**
+   *
+   *
+   * 
+   * A raw document on Google Cloud Storage.
+   * 

+   *
+   * .google.cloud.documentai.v1beta3.GcsDocument gcs_document = 8;
+   *
+   * @return The gcsDocument.
+   */
+  com.google.cloud.documentai.v1beta3.GcsDocument getGcsDocument();
+  /**
+   *
+   *
+   * 
+   * A raw document on Google Cloud Storage.
+   * 

+   *
+   * .google.cloud.documentai.v1beta3.GcsDocument gcs_document = 8;
+   */
+  com.google.cloud.documentai.v1beta3.GcsDocumentOrBuilder getGcsDocumentOrBuilder();
+
   /**
    *
    *
@@ -153,7 +188,7 @@ public interface ProcessRequestOrBuilder
    * .google.cloud.documentai.v1beta3.Document document = 2 [deprecated = true];
    *
    * @deprecated google.cloud.documentai.v1beta3.ProcessRequest.document is deprecated. See
-   *     google/cloud/documentai/v1beta3/document_processor_service.proto;l=381
+   *     google/cloud/documentai/v1beta3/document_processor_service.proto;l=384
    * @return Whether the document field is set.
    */
   @java.lang.Deprecated
@@ -171,7 +206,7 @@ public interface ProcessRequestOrBuilder
    * .google.cloud.documentai.v1beta3.Document document = 2 [deprecated = true];
    *
    * @deprecated google.cloud.documentai.v1beta3.ProcessRequest.document is deprecated. See
-   *     google/cloud/documentai/v1beta3/document_processor_service.proto;l=381
+   *     google/cloud/documentai/v1beta3/document_processor_service.proto;l=384
    * @return The document.
    */
   @java.lang.Deprecated
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/ProcessResponse.java b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/ProcessResponse.java
index 5928b9a2c57b..71e5afdf43e4 100644
--- a/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/ProcessResponse.java
+++ b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/ProcessResponse.java
@@ -134,7 +134,7 @@ public com.google.cloud.documentai.v1beta3.DocumentOrBuilder getDocumentOrBuilde
    * string human_review_operation = 2 [deprecated = true];
    *
    * @deprecated google.cloud.documentai.v1beta3.ProcessResponse.human_review_operation is
-   *     deprecated. See google/cloud/documentai/v1beta3/document_processor_service.proto;l=448
+   *     deprecated. See google/cloud/documentai/v1beta3/document_processor_service.proto;l=451
    * @return The humanReviewOperation.
    */
   @java.lang.Override
@@ -163,7 +163,7 @@ public java.lang.String getHumanReviewOperation() {
    * string human_review_operation = 2 [deprecated = true];
    *
    * @deprecated google.cloud.documentai.v1beta3.ProcessResponse.human_review_operation is
-   *     deprecated. See google/cloud/documentai/v1beta3/document_processor_service.proto;l=448
+   *     deprecated. See google/cloud/documentai/v1beta3/document_processor_service.proto;l=451
    * @return The bytes for humanReviewOperation.
    */
   @java.lang.Override
@@ -848,7 +848,7 @@ public com.google.cloud.documentai.v1beta3.DocumentOrBuilder getDocumentOrBuilde
      * string human_review_operation = 2 [deprecated = true];
      *
      * @deprecated google.cloud.documentai.v1beta3.ProcessResponse.human_review_operation is
-     *     deprecated. See google/cloud/documentai/v1beta3/document_processor_service.proto;l=448
+     *     deprecated. See google/cloud/documentai/v1beta3/document_processor_service.proto;l=451
      * @return The humanReviewOperation.
      */
     @java.lang.Deprecated
@@ -876,7 +876,7 @@ public java.lang.String getHumanReviewOperation() {
      * string human_review_operation = 2 [deprecated = true];
      *
      * @deprecated google.cloud.documentai.v1beta3.ProcessResponse.human_review_operation is
-     *     deprecated. See google/cloud/documentai/v1beta3/document_processor_service.proto;l=448
+     *     deprecated. See google/cloud/documentai/v1beta3/document_processor_service.proto;l=451
      * @return The bytes for humanReviewOperation.
      */
     @java.lang.Deprecated
@@ -904,7 +904,7 @@ public com.google.protobuf.ByteString getHumanReviewOperationBytes() {
      * string human_review_operation = 2 [deprecated = true];
      *
      * @deprecated google.cloud.documentai.v1beta3.ProcessResponse.human_review_operation is
-     *     deprecated. See google/cloud/documentai/v1beta3/document_processor_service.proto;l=448
+     *     deprecated. See google/cloud/documentai/v1beta3/document_processor_service.proto;l=451
      * @param value The humanReviewOperation to set.
      * @return This builder for chaining.
      */
@@ -931,7 +931,7 @@ public Builder setHumanReviewOperation(java.lang.String value) {
      * string human_review_operation = 2 [deprecated = true];
      *
      * @deprecated google.cloud.documentai.v1beta3.ProcessResponse.human_review_operation is
-     *     deprecated. See google/cloud/documentai/v1beta3/document_processor_service.proto;l=448
+     *     deprecated. See google/cloud/documentai/v1beta3/document_processor_service.proto;l=451
      * @return This builder for chaining.
      */
     @java.lang.Deprecated
@@ -954,7 +954,7 @@ public Builder clearHumanReviewOperation() {
      * string human_review_operation = 2 [deprecated = true];
      *
      * @deprecated google.cloud.documentai.v1beta3.ProcessResponse.human_review_operation is
-     *     deprecated. See google/cloud/documentai/v1beta3/document_processor_service.proto;l=448
+     *     deprecated. See google/cloud/documentai/v1beta3/document_processor_service.proto;l=451
      * @param value The bytes for humanReviewOperation to set.
      * @return This builder for chaining.
      */
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/ProcessResponseOrBuilder.java b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/ProcessResponseOrBuilder.java
index 5f8dd79c96dd..77d1d1d314c1 100644
--- a/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/ProcessResponseOrBuilder.java
+++ b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/ProcessResponseOrBuilder.java
@@ -74,7 +74,7 @@ public interface ProcessResponseOrBuilder
    * string human_review_operation = 2 [deprecated = true];
    *
    * @deprecated google.cloud.documentai.v1beta3.ProcessResponse.human_review_operation is
-   *     deprecated. See google/cloud/documentai/v1beta3/document_processor_service.proto;l=448
+   *     deprecated. See google/cloud/documentai/v1beta3/document_processor_service.proto;l=451
    * @return The humanReviewOperation.
    */
   @java.lang.Deprecated
@@ -92,7 +92,7 @@ public interface ProcessResponseOrBuilder
    * string human_review_operation = 2 [deprecated = true];
    *
    * @deprecated google.cloud.documentai.v1beta3.ProcessResponse.human_review_operation is
-   *     deprecated. See google/cloud/documentai/v1beta3/document_processor_service.proto;l=448
+   *     deprecated. See google/cloud/documentai/v1beta3/document_processor_service.proto;l=451
    * @return The bytes for humanReviewOperation.
    */
   @java.lang.Deprecated
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/ProcessorVersion.java b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/ProcessorVersion.java
index d965e3994b20..6da0fdb001e8 100644
--- a/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/ProcessorVersion.java
+++ b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/ProcessorVersion.java
@@ -1725,10 +1725,10 @@ public com.google.protobuf.ByteString getKmsKeyVersionNameBytes() {
    *
    *
    * 
-   * Denotes that this `ProcessorVersion` is managed by Google.
+   * Output only. Denotes that this `ProcessorVersion` is managed by Google.
    * 

    *
-   * bool google_managed = 11;
+   * bool google_managed = 11 [(.google.api.field_behavior) = OUTPUT_ONLY];
    *
    * @return The googleManaged.
    */
@@ -3473,10 +3473,10 @@ public Builder setKmsKeyVersionNameBytes(com.google.protobuf.ByteString value) {
      *
      *
      * 
-     * Denotes that this `ProcessorVersion` is managed by Google.
+     * Output only. Denotes that this `ProcessorVersion` is managed by Google.
      * 

      *
-     * bool google_managed = 11;
+     * bool google_managed = 11 [(.google.api.field_behavior) = OUTPUT_ONLY];
      *
      * @return The googleManaged.
      */
@@ -3488,10 +3488,10 @@ public boolean getGoogleManaged() {
      *
      *
      * 
-     * Denotes that this `ProcessorVersion` is managed by Google.
+     * Output only. Denotes that this `ProcessorVersion` is managed by Google.
      * 

      *
-     * bool google_managed = 11;
+     * bool google_managed = 11 [(.google.api.field_behavior) = OUTPUT_ONLY];
      *
      * @param value The googleManaged to set.
      * @return This builder for chaining.
@@ -3507,10 +3507,10 @@ public Builder setGoogleManaged(boolean value) {
      *
      *
      * 
-     * Denotes that this `ProcessorVersion` is managed by Google.
+     * Output only. Denotes that this `ProcessorVersion` is managed by Google.
      * 

      *
-     * bool google_managed = 11;
+     * bool google_managed = 11 [(.google.api.field_behavior) = OUTPUT_ONLY];
      *
      * @return This builder for chaining.
      */
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/ProcessorVersionOrBuilder.java b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/ProcessorVersionOrBuilder.java
index 8cc909e73f00..be998d62c1bc 100644
--- a/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/ProcessorVersionOrBuilder.java
+++ b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/ProcessorVersionOrBuilder.java
@@ -261,10 +261,10 @@ public interface ProcessorVersionOrBuilder
    *
    *
    * 
-   * Denotes that this `ProcessorVersion` is managed by Google.
+   * Output only. Denotes that this `ProcessorVersion` is managed by Google.
    * 

    *
-   * bool google_managed = 11;
+   * bool google_managed = 11 [(.google.api.field_behavior) = OUTPUT_ONLY];
    *
    * @return The googleManaged.
    */
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/ReviewDocumentRequest.java b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/ReviewDocumentRequest.java
index 8916c6d84d30..d2c4ec18c0d8 100644
--- a/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/ReviewDocumentRequest.java
+++ b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/ReviewDocumentRequest.java
@@ -372,7 +372,7 @@ public com.google.protobuf.ByteString getHumanReviewConfigBytes() {
    * .google.cloud.documentai.v1beta3.Document document = 2 [deprecated = true];
    *
    * @deprecated google.cloud.documentai.v1beta3.ReviewDocumentRequest.document is deprecated. See
-   *     google/cloud/documentai/v1beta3/document_processor_service.proto;l=1096
+   *     google/cloud/documentai/v1beta3/document_processor_service.proto;l=1099
    * @return Whether the document field is set.
    */
   @java.lang.Override
@@ -390,7 +390,7 @@ public boolean hasDocument() {
    * .google.cloud.documentai.v1beta3.Document document = 2 [deprecated = true];
    *
    * @deprecated google.cloud.documentai.v1beta3.ReviewDocumentRequest.document is deprecated. See
-   *     google/cloud/documentai/v1beta3/document_processor_service.proto;l=1096
+   *     google/cloud/documentai/v1beta3/document_processor_service.proto;l=1099
    * @return The document.
    */
   @java.lang.Override
@@ -1397,7 +1397,7 @@ public Builder setHumanReviewConfigBytes(com.google.protobuf.ByteString value) {
      * .google.cloud.documentai.v1beta3.Document document = 2 [deprecated = true];
      *
      * @deprecated google.cloud.documentai.v1beta3.ReviewDocumentRequest.document is deprecated. See
-     *     google/cloud/documentai/v1beta3/document_processor_service.proto;l=1096
+     *     google/cloud/documentai/v1beta3/document_processor_service.proto;l=1099
      * @return Whether the document field is set.
      */
     @java.lang.Deprecated
@@ -1414,7 +1414,7 @@ public boolean hasDocument() {
      * .google.cloud.documentai.v1beta3.Document document = 2 [deprecated = true];
      *
      * @deprecated google.cloud.documentai.v1beta3.ReviewDocumentRequest.document is deprecated. See
-     *     google/cloud/documentai/v1beta3/document_processor_service.proto;l=1096
+     *     google/cloud/documentai/v1beta3/document_processor_service.proto;l=1099
      * @return The document.
      */
     @java.lang.Deprecated
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/ReviewDocumentRequestOrBuilder.java b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/ReviewDocumentRequestOrBuilder.java
index b095ec4c0a53..25b8c5e5e604 100644
--- a/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/ReviewDocumentRequestOrBuilder.java
+++ b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/ReviewDocumentRequestOrBuilder.java
@@ -101,7 +101,7 @@ public interface ReviewDocumentRequestOrBuilder
    * .google.cloud.documentai.v1beta3.Document document = 2 [deprecated = true];
    *
    * @deprecated google.cloud.documentai.v1beta3.ReviewDocumentRequest.document is deprecated. See
-   *     google/cloud/documentai/v1beta3/document_processor_service.proto;l=1096
+   *     google/cloud/documentai/v1beta3/document_processor_service.proto;l=1099
    * @return Whether the document field is set.
    */
   @java.lang.Deprecated
@@ -116,7 +116,7 @@ public interface ReviewDocumentRequestOrBuilder
    * .google.cloud.documentai.v1beta3.Document document = 2 [deprecated = true];
    *
    * @deprecated google.cloud.documentai.v1beta3.ReviewDocumentRequest.document is deprecated. See
-   *     google/cloud/documentai/v1beta3/document_processor_service.proto;l=1096
+   *     google/cloud/documentai/v1beta3/document_processor_service.proto;l=1099
    * @return The document.
    */
   @java.lang.Deprecated
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/RevisionRef.java b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/RevisionRef.java
new file mode 100644
index 000000000000..e698a305fe63
--- /dev/null
+++ b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/RevisionRef.java
@@ -0,0 +1,1386 @@
+/*
+ * Copyright 2023 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/documentai/v1beta3/document.proto
+
+package com.google.cloud.documentai.v1beta3;
+
+/**
+ *
+ *
+ * 
+ * The revision reference specifies which revision on the document to read.
+ * 

+ *
+ * Protobuf type {@code google.cloud.documentai.v1beta3.RevisionRef}
+ */
+public final class RevisionRef extends com.google.protobuf.GeneratedMessageV3
+    implements
+    // @@protoc_insertion_point(message_implements:google.cloud.documentai.v1beta3.RevisionRef)
+    RevisionRefOrBuilder {
+  private static final long serialVersionUID = 0L;
+  // Use RevisionRef.newBuilder() to construct.
+  private RevisionRef(com.google.protobuf.GeneratedMessageV3.Builder builder) {
+    super(builder);
+  }
+
+  private RevisionRef() {}
+
+  @java.lang.Override
+  @SuppressWarnings({"unused"})
+  protected java.lang.Object newInstance(UnusedPrivateParameter unused) {
+    return new RevisionRef();
+  }
+
+  public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+    return com.google.cloud.documentai.v1beta3.DocumentProto
+        .internal_static_google_cloud_documentai_v1beta3_RevisionRef_descriptor;
+  }
+
+  @java.lang.Override
+  protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+      internalGetFieldAccessorTable() {
+    return com.google.cloud.documentai.v1beta3.DocumentProto
+        .internal_static_google_cloud_documentai_v1beta3_RevisionRef_fieldAccessorTable
+        .ensureFieldAccessorsInitialized(
+            com.google.cloud.documentai.v1beta3.RevisionRef.class,
+            com.google.cloud.documentai.v1beta3.RevisionRef.Builder.class);
+  }
+
+  /**
+   *
+   *
+   * 
+   * Some predefined revision cases.
+   * 

+   *
+   * Protobuf enum {@code google.cloud.documentai.v1beta3.RevisionRef.RevisionCase}
+   */
+  public enum RevisionCase implements com.google.protobuf.ProtocolMessageEnum {
+    /**
+     *
+     *
+     * 
+     * Unspecified case, fallback to read the LATEST_HUMAN_REVIEW.
+     * 

+     *
+     * REVISION_CASE_UNSPECIFIED = 0;
+     */
+    REVISION_CASE_UNSPECIFIED(0),
+    /**
+     *
+     *
+     * 
+     * The latest revision made by a human.
+     * 

+     *
+     * LATEST_HUMAN_REVIEW = 1;
+     */
+    LATEST_HUMAN_REVIEW(1),
+    /**
+     *
+     *
+     * 
+     * The latest revision based on timestamp.
+     * 

+     *
+     * LATEST_TIMESTAMP = 2;
+     */
+    LATEST_TIMESTAMP(2),
+    /**
+     *
+     *
+     * 
+     * The first (OCR) revision.
+     * 

+     *
+     * BASE_OCR_REVISION = 3;
+     */
+    BASE_OCR_REVISION(3),
+    UNRECOGNIZED(-1),
+    ;
+
+    /**
+     *
+     *
+     * 
+     * Unspecified case, fallback to read the LATEST_HUMAN_REVIEW.
+     * 

+     *
+     * REVISION_CASE_UNSPECIFIED = 0;
+     */
+    public static final int REVISION_CASE_UNSPECIFIED_VALUE = 0;
+    /**
+     *
+     *
+     * 
+     * The latest revision made by a human.
+     * 

+     *
+     * LATEST_HUMAN_REVIEW = 1;
+     */
+    public static final int LATEST_HUMAN_REVIEW_VALUE = 1;
+    /**
+     *
+     *
+     * 
+     * The latest revision based on timestamp.
+     * 

+     *
+     * LATEST_TIMESTAMP = 2;
+     */
+    public static final int LATEST_TIMESTAMP_VALUE = 2;
+    /**
+     *
+     *
+     * 
+     * The first (OCR) revision.
+     * 

+     *
+     * BASE_OCR_REVISION = 3;
+     */
+    public static final int BASE_OCR_REVISION_VALUE = 3;
+
+    public final int getNumber() {
+      if (this == UNRECOGNIZED) {
+        throw new java.lang.IllegalArgumentException(
+            "Can't get the number of an unknown enum value.");
+      }
+      return value;
+    }
+
+    /**
+     * @param value The numeric wire value of the corresponding enum entry.
+     * @return The enum associated with the given numeric wire value.
+     * @deprecated Use {@link #forNumber(int)} instead.
+     */
+    @java.lang.Deprecated
+    public static RevisionCase valueOf(int value) {
+      return forNumber(value);
+    }
+
+    /**
+     * @param value The numeric wire value of the corresponding enum entry.
+     * @return The enum associated with the given numeric wire value.
+     */
+    public static RevisionCase forNumber(int value) {
+      switch (value) {
+        case 0:
+          return REVISION_CASE_UNSPECIFIED;
+        case 1:
+          return LATEST_HUMAN_REVIEW;
+        case 2:
+          return LATEST_TIMESTAMP;
+        case 3:
+          return BASE_OCR_REVISION;
+        default:
+          return null;
+      }
+    }
+
+    public static com.google.protobuf.Internal.EnumLiteMap internalGetValueMap() {
+      return internalValueMap;
+    }
+
+    private static final com.google.protobuf.Internal.EnumLiteMap internalValueMap =
+        new com.google.protobuf.Internal.EnumLiteMap() {
+          public RevisionCase findValueByNumber(int number) {
+            return RevisionCase.forNumber(number);
+          }
+        };
+
+    public final com.google.protobuf.Descriptors.EnumValueDescriptor getValueDescriptor() {
+      if (this == UNRECOGNIZED) {
+        throw new java.lang.IllegalStateException(
+            "Can't get the descriptor of an unrecognized enum value.");
+      }
+      return getDescriptor().getValues().get(ordinal());
+    }
+
+    public final com.google.protobuf.Descriptors.EnumDescriptor getDescriptorForType() {
+      return getDescriptor();
+    }
+
+    public static final com.google.protobuf.Descriptors.EnumDescriptor getDescriptor() {
+      return com.google.cloud.documentai.v1beta3.RevisionRef.getDescriptor().getEnumTypes().get(0);
+    }
+
+    private static final RevisionCase[] VALUES = values();
+
+    public static RevisionCase valueOf(com.google.protobuf.Descriptors.EnumValueDescriptor desc) {
+      if (desc.getType() != getDescriptor()) {
+        throw new java.lang.IllegalArgumentException("EnumValueDescriptor is not for this type.");
+      }
+      if (desc.getIndex() == -1) {
+        return UNRECOGNIZED;
+      }
+      return VALUES[desc.getIndex()];
+    }
+
+    private final int value;
+
+    private RevisionCase(int value) {
+      this.value = value;
+    }
+
+    // @@protoc_insertion_point(enum_scope:google.cloud.documentai.v1beta3.RevisionRef.RevisionCase)
+  }
+
+  private int sourceCase_ = 0;
+
+  @SuppressWarnings("serial")
+  private java.lang.Object source_;
+
+  public enum SourceCase
+      implements
+          com.google.protobuf.Internal.EnumLite,
+          com.google.protobuf.AbstractMessage.InternalOneOfEnum {
+    REVISION_CASE(1),
+    REVISION_ID(2),
+    LATEST_PROCESSOR_VERSION(3),
+    SOURCE_NOT_SET(0);
+    private final int value;
+
+    private SourceCase(int value) {
+      this.value = value;
+    }
+    /**
+     * @param value The number of the enum to look for.
+     * @return The enum associated with the given number.
+     * @deprecated Use {@link #forNumber(int)} instead.
+     */
+    @java.lang.Deprecated
+    public static SourceCase valueOf(int value) {
+      return forNumber(value);
+    }
+
+    public static SourceCase forNumber(int value) {
+      switch (value) {
+        case 1:
+          return REVISION_CASE;
+        case 2:
+          return REVISION_ID;
+        case 3:
+          return LATEST_PROCESSOR_VERSION;
+        case 0:
+          return SOURCE_NOT_SET;
+        default:
+          return null;
+      }
+    }
+
+    public int getNumber() {
+      return this.value;
+    }
+  };
+
+  public SourceCase getSourceCase() {
+    return SourceCase.forNumber(sourceCase_);
+  }
+
+  public static final int REVISION_CASE_FIELD_NUMBER = 1;
+  /**
+   *
+   *
+   * 
+   * Reads the revision by the predefined case.
+   * 

+   *
+   * .google.cloud.documentai.v1beta3.RevisionRef.RevisionCase revision_case = 1;
+   *
+   * @return Whether the revisionCase field is set.
+   */
+  public boolean hasRevisionCase() {
+    return sourceCase_ == 1;
+  }
+  /**
+   *
+   *
+   * 
+   * Reads the revision by the predefined case.
+   * 

+   *
+   * .google.cloud.documentai.v1beta3.RevisionRef.RevisionCase revision_case = 1;
+   *
+   * @return The enum numeric value on the wire for revisionCase.
+   */
+  public int getRevisionCaseValue() {
+    if (sourceCase_ == 1) {
+      return (java.lang.Integer) source_;
+    }
+    return 0;
+  }
+  /**
+   *
+   *
+   * 
+   * Reads the revision by the predefined case.
+   * 

+   *
+   * .google.cloud.documentai.v1beta3.RevisionRef.RevisionCase revision_case = 1;
+   *
+   * @return The revisionCase.
+   */
+  public com.google.cloud.documentai.v1beta3.RevisionRef.RevisionCase getRevisionCase() {
+    if (sourceCase_ == 1) {
+      com.google.cloud.documentai.v1beta3.RevisionRef.RevisionCase result =
+          com.google.cloud.documentai.v1beta3.RevisionRef.RevisionCase.forNumber(
+              (java.lang.Integer) source_);
+      return result == null
+          ? com.google.cloud.documentai.v1beta3.RevisionRef.RevisionCase.UNRECOGNIZED
+          : result;
+    }
+    return com.google.cloud.documentai.v1beta3.RevisionRef.RevisionCase.REVISION_CASE_UNSPECIFIED;
+  }
+
+  public static final int REVISION_ID_FIELD_NUMBER = 2;
+  /**
+   *
+   *
+   * 
+   * Reads the revision given by the id.
+   * 

+   *
+   * string revision_id = 2;
+   *
+   * @return Whether the revisionId field is set.
+   */
+  public boolean hasRevisionId() {
+    return sourceCase_ == 2;
+  }
+  /**
+   *
+   *
+   * 
+   * Reads the revision given by the id.
+   * 

+   *
+   * string revision_id = 2;
+   *
+   * @return The revisionId.
+   */
+  public java.lang.String getRevisionId() {
+    java.lang.Object ref = "";
+    if (sourceCase_ == 2) {
+      ref = source_;
+    }
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      if (sourceCase_ == 2) {
+        source_ = s;
+      }
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * 
+   * Reads the revision given by the id.
+   * 

+   *
+   * string revision_id = 2;
+   *
+   * @return The bytes for revisionId.
+   */
+  public com.google.protobuf.ByteString getRevisionIdBytes() {
+    java.lang.Object ref = "";
+    if (sourceCase_ == 2) {
+      ref = source_;
+    }
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      if (sourceCase_ == 2) {
+        source_ = b;
+      }
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  public static final int LATEST_PROCESSOR_VERSION_FIELD_NUMBER = 3;
+  /**
+   *
+   *
+   * 
+   * Reads the revision generated by the processor version.
+   * The format takes the full resource name of processor version.
+   * `projects/{project}/locations/{location}/processors/{processor}/processorVersions/{processorVersion}`
+   * 

+   *
+   * string latest_processor_version = 3;
+   *
+   * @return Whether the latestProcessorVersion field is set.
+   */
+  public boolean hasLatestProcessorVersion() {
+    return sourceCase_ == 3;
+  }
+  /**
+   *
+   *
+   * 
+   * Reads the revision generated by the processor version.
+   * The format takes the full resource name of processor version.
+   * `projects/{project}/locations/{location}/processors/{processor}/processorVersions/{processorVersion}`
+   * 

+   *
+   * string latest_processor_version = 3;
+   *
+   * @return The latestProcessorVersion.
+   */
+  public java.lang.String getLatestProcessorVersion() {
+    java.lang.Object ref = "";
+    if (sourceCase_ == 3) {
+      ref = source_;
+    }
+    if (ref instanceof java.lang.String) {
+      return (java.lang.String) ref;
+    } else {
+      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+      java.lang.String s = bs.toStringUtf8();
+      if (sourceCase_ == 3) {
+        source_ = s;
+      }
+      return s;
+    }
+  }
+  /**
+   *
+   *
+   * 
+   * Reads the revision generated by the processor version.
+   * The format takes the full resource name of processor version.
+   * `projects/{project}/locations/{location}/processors/{processor}/processorVersions/{processorVersion}`
+   * 

+   *
+   * string latest_processor_version = 3;
+   *
+   * @return The bytes for latestProcessorVersion.
+   */
+  public com.google.protobuf.ByteString getLatestProcessorVersionBytes() {
+    java.lang.Object ref = "";
+    if (sourceCase_ == 3) {
+      ref = source_;
+    }
+    if (ref instanceof java.lang.String) {
+      com.google.protobuf.ByteString b =
+          com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+      if (sourceCase_ == 3) {
+        source_ = b;
+      }
+      return b;
+    } else {
+      return (com.google.protobuf.ByteString) ref;
+    }
+  }
+
+  private byte memoizedIsInitialized = -1;
+
+  @java.lang.Override
+  public final boolean isInitialized() {
+    byte isInitialized = memoizedIsInitialized;
+    if (isInitialized == 1) return true;
+    if (isInitialized == 0) return false;
+
+    memoizedIsInitialized = 1;
+    return true;
+  }
+
+  @java.lang.Override
+  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
+    if (sourceCase_ == 1) {
+      output.writeEnum(1, ((java.lang.Integer) source_));
+    }
+    if (sourceCase_ == 2) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 2, source_);
+    }
+    if (sourceCase_ == 3) {
+      com.google.protobuf.GeneratedMessageV3.writeString(output, 3, source_);
+    }
+    getUnknownFields().writeTo(output);
+  }
+
+  @java.lang.Override
+  public int getSerializedSize() {
+    int size = memoizedSize;
+    if (size != -1) return size;
+
+    size = 0;
+    if (sourceCase_ == 1) {
+      size +=
+          com.google.protobuf.CodedOutputStream.computeEnumSize(1, ((java.lang.Integer) source_));
+    }
+    if (sourceCase_ == 2) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(2, source_);
+    }
+    if (sourceCase_ == 3) {
+      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(3, source_);
+    }
+    size += getUnknownFields().getSerializedSize();
+    memoizedSize = size;
+    return size;
+  }
+
+  @java.lang.Override
+  public boolean equals(final java.lang.Object obj) {
+    if (obj == this) {
+      return true;
+    }
+    if (!(obj instanceof com.google.cloud.documentai.v1beta3.RevisionRef)) {
+      return super.equals(obj);
+    }
+    com.google.cloud.documentai.v1beta3.RevisionRef other =
+        (com.google.cloud.documentai.v1beta3.RevisionRef) obj;
+
+    if (!getSourceCase().equals(other.getSourceCase())) return false;
+    switch (sourceCase_) {
+      case 1:
+        if (getRevisionCaseValue() != other.getRevisionCaseValue()) return false;
+        break;
+      case 2:
+        if (!getRevisionId().equals(other.getRevisionId())) return false;
+        break;
+      case 3:
+        if (!getLatestProcessorVersion().equals(other.getLatestProcessorVersion())) return false;
+        break;
+      case 0:
+      default:
+    }
+    if (!getUnknownFields().equals(other.getUnknownFields())) return false;
+    return true;
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+    }
+    int hash = 41;
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+        hash = (37 * hash) + REVISION_CASE_FIELD_NUMBER;
+        hash = (53 * hash) + getRevisionCaseValue();
+        break;
+      case 2:
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+        hash = (53 * hash) + getRevisionId().hashCode();
+        break;
+      case 3:
+        hash = (37 * hash) + LATEST_PROCESSOR_VERSION_FIELD_NUMBER;
+        hash = (53 * hash) + getLatestProcessorVersion().hashCode();
+        break;
+      case 0:
+      default:
+    }
+    hash = (29 * hash) + getUnknownFields().hashCode();
+    memoizedHashCode = hash;
+    return hash;
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+
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+    return PARSER.parseFrom(data);
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+
+  public static com.google.cloud.documentai.v1beta3.RevisionRef parseFrom(
+      java.nio.ByteBuffer data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.RevisionRef parseFrom(
+      com.google.protobuf.ByteString data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.RevisionRef parseFrom(
+      com.google.protobuf.ByteString data,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.RevisionRef parseFrom(byte[] data)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.RevisionRef parseFrom(
+      byte[] data, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws com.google.protobuf.InvalidProtocolBufferException {
+    return PARSER.parseFrom(data, extensionRegistry);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.RevisionRef parseFrom(java.io.InputStream input)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.RevisionRef parseFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.RevisionRef parseDelimitedFrom(
+      java.io.InputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.RevisionRef parseDelimitedFrom(
+      java.io.InputStream input, com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseDelimitedWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.RevisionRef parseFrom(
+      com.google.protobuf.CodedInputStream input) throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(PARSER, input);
+  }
+
+  public static com.google.cloud.documentai.v1beta3.RevisionRef parseFrom(
+      com.google.protobuf.CodedInputStream input,
+      com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+      throws java.io.IOException {
+    return com.google.protobuf.GeneratedMessageV3.parseWithIOException(
+        PARSER, input, extensionRegistry);
+  }
+
+  @java.lang.Override
+  public Builder newBuilderForType() {
+    return newBuilder();
+  }
+
+  public static Builder newBuilder() {
+    return DEFAULT_INSTANCE.toBuilder();
+  }
+
+  public static Builder newBuilder(com.google.cloud.documentai.v1beta3.RevisionRef prototype) {
+    return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);
+  }
+
+  @java.lang.Override
+  public Builder toBuilder() {
+    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(this);
+  }
+
+  @java.lang.Override
+  protected Builder newBuilderForType(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+    Builder builder = new Builder(parent);
+    return builder;
+  }
+  /**
+   *
+   *
+   * 
+   * The revision reference specifies which revision on the document to read.
+   * 

+   *
+   * Protobuf type {@code google.cloud.documentai.v1beta3.RevisionRef}
+   */
+  public static final class Builder extends com.google.protobuf.GeneratedMessageV3.Builder
+      implements
+      // @@protoc_insertion_point(builder_implements:google.cloud.documentai.v1beta3.RevisionRef)
+      com.google.cloud.documentai.v1beta3.RevisionRefOrBuilder {
+    public static final com.google.protobuf.Descriptors.Descriptor getDescriptor() {
+      return com.google.cloud.documentai.v1beta3.DocumentProto
+          .internal_static_google_cloud_documentai_v1beta3_RevisionRef_descriptor;
+    }
+
+    @java.lang.Override
+    protected com.google.protobuf.GeneratedMessageV3.FieldAccessorTable
+        internalGetFieldAccessorTable() {
+      return com.google.cloud.documentai.v1beta3.DocumentProto
+          .internal_static_google_cloud_documentai_v1beta3_RevisionRef_fieldAccessorTable
+          .ensureFieldAccessorsInitialized(
+              com.google.cloud.documentai.v1beta3.RevisionRef.class,
+              com.google.cloud.documentai.v1beta3.RevisionRef.Builder.class);
+    }
+
+    // Construct using com.google.cloud.documentai.v1beta3.RevisionRef.newBuilder()
+    private Builder() {}
+
+    private Builder(com.google.protobuf.GeneratedMessageV3.BuilderParent parent) {
+      super(parent);
+    }
+
+    @java.lang.Override
+    public Builder clear() {
+      super.clear();
+      bitField0_ = 0;
+      sourceCase_ = 0;
+      source_ = null;
+      return this;
+    }
+
+    @java.lang.Override
+    public com.google.protobuf.Descriptors.Descriptor getDescriptorForType() {
+      return com.google.cloud.documentai.v1beta3.DocumentProto
+          .internal_static_google_cloud_documentai_v1beta3_RevisionRef_descriptor;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta3.RevisionRef getDefaultInstanceForType() {
+      return com.google.cloud.documentai.v1beta3.RevisionRef.getDefaultInstance();
+    }
+
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta3.RevisionRef build() {
+      com.google.cloud.documentai.v1beta3.RevisionRef result = buildPartial();
+      if (!result.isInitialized()) {
+        throw newUninitializedMessageException(result);
+      }
+      return result;
+    }
+
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta3.RevisionRef buildPartial() {
+      com.google.cloud.documentai.v1beta3.RevisionRef result =
+          new com.google.cloud.documentai.v1beta3.RevisionRef(this);
+      if (bitField0_ != 0) {
+        buildPartial0(result);
+      }
+      buildPartialOneofs(result);
+      onBuilt();
+      return result;
+    }
+
+    private void buildPartial0(com.google.cloud.documentai.v1beta3.RevisionRef result) {
+      int from_bitField0_ = bitField0_;
+    }
+
+    private void buildPartialOneofs(com.google.cloud.documentai.v1beta3.RevisionRef result) {
+      result.sourceCase_ = sourceCase_;
+      result.source_ = this.source_;
+    }
+
+    @java.lang.Override
+    public Builder clone() {
+      return super.clone();
+    }
+
+    @java.lang.Override
+    public Builder setField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.setField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder clearField(com.google.protobuf.Descriptors.FieldDescriptor field) {
+      return super.clearField(field);
+    }
+
+    @java.lang.Override
+    public Builder clearOneof(com.google.protobuf.Descriptors.OneofDescriptor oneof) {
+      return super.clearOneof(oneof);
+    }
+
+    @java.lang.Override
+    public Builder setRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, int index, java.lang.Object value) {
+      return super.setRepeatedField(field, index, value);
+    }
+
+    @java.lang.Override
+    public Builder addRepeatedField(
+        com.google.protobuf.Descriptors.FieldDescriptor field, java.lang.Object value) {
+      return super.addRepeatedField(field, value);
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(com.google.protobuf.Message other) {
+      if (other instanceof com.google.cloud.documentai.v1beta3.RevisionRef) {
+        return mergeFrom((com.google.cloud.documentai.v1beta3.RevisionRef) other);
+      } else {
+        super.mergeFrom(other);
+        return this;
+      }
+    }
+
+    public Builder mergeFrom(com.google.cloud.documentai.v1beta3.RevisionRef other) {
+      if (other == com.google.cloud.documentai.v1beta3.RevisionRef.getDefaultInstance())
+        return this;
+      switch (other.getSourceCase()) {
+        case REVISION_CASE:
+          {
+            setRevisionCaseValue(other.getRevisionCaseValue());
+            break;
+          }
+        case REVISION_ID:
+          {
+            sourceCase_ = 2;
+            source_ = other.source_;
+            onChanged();
+            break;
+          }
+        case LATEST_PROCESSOR_VERSION:
+          {
+            sourceCase_ = 3;
+            source_ = other.source_;
+            onChanged();
+            break;
+          }
+        case SOURCE_NOT_SET:
+          {
+            break;
+          }
+      }
+      this.mergeUnknownFields(other.getUnknownFields());
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final boolean isInitialized() {
+      return true;
+    }
+
+    @java.lang.Override
+    public Builder mergeFrom(
+        com.google.protobuf.CodedInputStream input,
+        com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+        throws java.io.IOException {
+      if (extensionRegistry == null) {
+        throw new java.lang.NullPointerException();
+      }
+      try {
+        boolean done = false;
+        while (!done) {
+          int tag = input.readTag();
+          switch (tag) {
+            case 0:
+              done = true;
+              break;
+            case 8:
+              {
+                int rawValue = input.readEnum();
+                sourceCase_ = 1;
+                source_ = rawValue;
+                break;
+              } // case 8
+            case 18:
+              {
+                java.lang.String s = input.readStringRequireUtf8();
+                sourceCase_ = 2;
+                source_ = s;
+                break;
+              } // case 18
+            case 26:
+              {
+                java.lang.String s = input.readStringRequireUtf8();
+                sourceCase_ = 3;
+                source_ = s;
+                break;
+              } // case 26
+            default:
+              {
+                if (!super.parseUnknownField(input, extensionRegistry, tag)) {
+                  done = true; // was an endgroup tag
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+                break;
+              } // default:
+          } // switch (tag)
+        } // while (!done)
+      } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+        throw e.unwrapIOException();
+      } finally {
+        onChanged();
+      } // finally
+      return this;
+    }
+
+    private int sourceCase_ = 0;
+    private java.lang.Object source_;
+
+    public SourceCase getSourceCase() {
+      return SourceCase.forNumber(sourceCase_);
+    }
+
+    public Builder clearSource() {
+      sourceCase_ = 0;
+      source_ = null;
+      onChanged();
+      return this;
+    }
+
+    private int bitField0_;
+
+    /**
+     *
+     *
+     * 
+     * Reads the revision by the predefined case.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.RevisionRef.RevisionCase revision_case = 1;
+     *
+     * @return Whether the revisionCase field is set.
+     */
+    @java.lang.Override
+    public boolean hasRevisionCase() {
+      return sourceCase_ == 1;
+    }
+    /**
+     *
+     *
+     * 
+     * Reads the revision by the predefined case.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.RevisionRef.RevisionCase revision_case = 1;
+     *
+     * @return The enum numeric value on the wire for revisionCase.
+     */
+    @java.lang.Override
+    public int getRevisionCaseValue() {
+      if (sourceCase_ == 1) {
+        return ((java.lang.Integer) source_).intValue();
+      }
+      return 0;
+    }
+    /**
+     *
+     *
+     * 
+     * Reads the revision by the predefined case.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.RevisionRef.RevisionCase revision_case = 1;
+     *
+     * @param value The enum numeric value on the wire for revisionCase to set.
+     * @return This builder for chaining.
+     */
+    public Builder setRevisionCaseValue(int value) {
+      sourceCase_ = 1;
+      source_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Reads the revision by the predefined case.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.RevisionRef.RevisionCase revision_case = 1;
+     *
+     * @return The revisionCase.
+     */
+    @java.lang.Override
+    public com.google.cloud.documentai.v1beta3.RevisionRef.RevisionCase getRevisionCase() {
+      if (sourceCase_ == 1) {
+        com.google.cloud.documentai.v1beta3.RevisionRef.RevisionCase result =
+            com.google.cloud.documentai.v1beta3.RevisionRef.RevisionCase.forNumber(
+                (java.lang.Integer) source_);
+        return result == null
+            ? com.google.cloud.documentai.v1beta3.RevisionRef.RevisionCase.UNRECOGNIZED
+            : result;
+      }
+      return com.google.cloud.documentai.v1beta3.RevisionRef.RevisionCase.REVISION_CASE_UNSPECIFIED;
+    }
+    /**
+     *
+     *
+     * 
+     * Reads the revision by the predefined case.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.RevisionRef.RevisionCase revision_case = 1;
+     *
+     * @param value The revisionCase to set.
+     * @return This builder for chaining.
+     */
+    public Builder setRevisionCase(
+        com.google.cloud.documentai.v1beta3.RevisionRef.RevisionCase value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      sourceCase_ = 1;
+      source_ = value.getNumber();
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Reads the revision by the predefined case.
+     * 

+     *
+     * .google.cloud.documentai.v1beta3.RevisionRef.RevisionCase revision_case = 1;
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearRevisionCase() {
+      if (sourceCase_ == 1) {
+        sourceCase_ = 0;
+        source_ = null;
+        onChanged();
+      }
+      return this;
+    }
+
+    /**
+     *
+     *
+     * 
+     * Reads the revision given by the id.
+     * 

+     *
+     * string revision_id = 2;
+     *
+     * @return Whether the revisionId field is set.
+     */
+    @java.lang.Override
+    public boolean hasRevisionId() {
+      return sourceCase_ == 2;
+    }
+    /**
+     *
+     *
+     * 
+     * Reads the revision given by the id.
+     * 

+     *
+     * string revision_id = 2;
+     *
+     * @return The revisionId.
+     */
+    @java.lang.Override
+    public java.lang.String getRevisionId() {
+      java.lang.Object ref = "";
+      if (sourceCase_ == 2) {
+        ref = source_;
+      }
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        if (sourceCase_ == 2) {
+          source_ = s;
+        }
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Reads the revision given by the id.
+     * 

+     *
+     * string revision_id = 2;
+     *
+     * @return The bytes for revisionId.
+     */
+    @java.lang.Override
+    public com.google.protobuf.ByteString getRevisionIdBytes() {
+      java.lang.Object ref = "";
+      if (sourceCase_ == 2) {
+        ref = source_;
+      }
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        if (sourceCase_ == 2) {
+          source_ = b;
+        }
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Reads the revision given by the id.
+     * 

+     *
+     * string revision_id = 2;
+     *
+     * @param value The revisionId to set.
+     * @return This builder for chaining.
+     */
+    public Builder setRevisionId(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      sourceCase_ = 2;
+      source_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Reads the revision given by the id.
+     * 

+     *
+     * string revision_id = 2;
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearRevisionId() {
+      if (sourceCase_ == 2) {
+        sourceCase_ = 0;
+        source_ = null;
+        onChanged();
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Reads the revision given by the id.
+     * 

+     *
+     * string revision_id = 2;
+     *
+     * @param value The bytes for revisionId to set.
+     * @return This builder for chaining.
+     */
+    public Builder setRevisionIdBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+      sourceCase_ = 2;
+      source_ = value;
+      onChanged();
+      return this;
+    }
+
+    /**
+     *
+     *
+     * 
+     * Reads the revision generated by the processor version.
+     * The format takes the full resource name of processor version.
+     * `projects/{project}/locations/{location}/processors/{processor}/processorVersions/{processorVersion}`
+     * 

+     *
+     * string latest_processor_version = 3;
+     *
+     * @return Whether the latestProcessorVersion field is set.
+     */
+    @java.lang.Override
+    public boolean hasLatestProcessorVersion() {
+      return sourceCase_ == 3;
+    }
+    /**
+     *
+     *
+     * 
+     * Reads the revision generated by the processor version.
+     * The format takes the full resource name of processor version.
+     * `projects/{project}/locations/{location}/processors/{processor}/processorVersions/{processorVersion}`
+     * 

+     *
+     * string latest_processor_version = 3;
+     *
+     * @return The latestProcessorVersion.
+     */
+    @java.lang.Override
+    public java.lang.String getLatestProcessorVersion() {
+      java.lang.Object ref = "";
+      if (sourceCase_ == 3) {
+        ref = source_;
+      }
+      if (!(ref instanceof java.lang.String)) {
+        com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
+        java.lang.String s = bs.toStringUtf8();
+        if (sourceCase_ == 3) {
+          source_ = s;
+        }
+        return s;
+      } else {
+        return (java.lang.String) ref;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Reads the revision generated by the processor version.
+     * The format takes the full resource name of processor version.
+     * `projects/{project}/locations/{location}/processors/{processor}/processorVersions/{processorVersion}`
+     * 

+     *
+     * string latest_processor_version = 3;
+     *
+     * @return The bytes for latestProcessorVersion.
+     */
+    @java.lang.Override
+    public com.google.protobuf.ByteString getLatestProcessorVersionBytes() {
+      java.lang.Object ref = "";
+      if (sourceCase_ == 3) {
+        ref = source_;
+      }
+      if (ref instanceof String) {
+        com.google.protobuf.ByteString b =
+            com.google.protobuf.ByteString.copyFromUtf8((java.lang.String) ref);
+        if (sourceCase_ == 3) {
+          source_ = b;
+        }
+        return b;
+      } else {
+        return (com.google.protobuf.ByteString) ref;
+      }
+    }
+    /**
+     *
+     *
+     * 
+     * Reads the revision generated by the processor version.
+     * The format takes the full resource name of processor version.
+     * `projects/{project}/locations/{location}/processors/{processor}/processorVersions/{processorVersion}`
+     * 

+     *
+     * string latest_processor_version = 3;
+     *
+     * @param value The latestProcessorVersion to set.
+     * @return This builder for chaining.
+     */
+    public Builder setLatestProcessorVersion(java.lang.String value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      sourceCase_ = 3;
+      source_ = value;
+      onChanged();
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Reads the revision generated by the processor version.
+     * The format takes the full resource name of processor version.
+     * `projects/{project}/locations/{location}/processors/{processor}/processorVersions/{processorVersion}`
+     * 

+     *
+     * string latest_processor_version = 3;
+     *
+     * @return This builder for chaining.
+     */
+    public Builder clearLatestProcessorVersion() {
+      if (sourceCase_ == 3) {
+        sourceCase_ = 0;
+        source_ = null;
+        onChanged();
+      }
+      return this;
+    }
+    /**
+     *
+     *
+     * 
+     * Reads the revision generated by the processor version.
+     * The format takes the full resource name of processor version.
+     * `projects/{project}/locations/{location}/processors/{processor}/processorVersions/{processorVersion}`
+     * 

+     *
+     * string latest_processor_version = 3;
+     *
+     * @param value The bytes for latestProcessorVersion to set.
+     * @return This builder for chaining.
+     */
+    public Builder setLatestProcessorVersionBytes(com.google.protobuf.ByteString value) {
+      if (value == null) {
+        throw new NullPointerException();
+      }
+      checkByteStringIsUtf8(value);
+      sourceCase_ = 3;
+      source_ = value;
+      onChanged();
+      return this;
+    }
+
+    @java.lang.Override
+    public final Builder setUnknownFields(final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.setUnknownFields(unknownFields);
+    }
+
+    @java.lang.Override
+    public final Builder mergeUnknownFields(
+        final com.google.protobuf.UnknownFieldSet unknownFields) {
+      return super.mergeUnknownFields(unknownFields);
+    }
+
+    // @@protoc_insertion_point(builder_scope:google.cloud.documentai.v1beta3.RevisionRef)
+  }
+
+  // @@protoc_insertion_point(class_scope:google.cloud.documentai.v1beta3.RevisionRef)
+  private static final com.google.cloud.documentai.v1beta3.RevisionRef DEFAULT_INSTANCE;
+
+  static {
+    DEFAULT_INSTANCE = new com.google.cloud.documentai.v1beta3.RevisionRef();
+  }
+
+  public static com.google.cloud.documentai.v1beta3.RevisionRef getDefaultInstance() {
+    return DEFAULT_INSTANCE;
+  }
+
+  private static final com.google.protobuf.Parser PARSER =
+      new com.google.protobuf.AbstractParser() {
+        @java.lang.Override
+        public RevisionRef parsePartialFrom(
+            com.google.protobuf.CodedInputStream input,
+            com.google.protobuf.ExtensionRegistryLite extensionRegistry)
+            throws com.google.protobuf.InvalidProtocolBufferException {
+          Builder builder = newBuilder();
+          try {
+            builder.mergeFrom(input, extensionRegistry);
+          } catch (com.google.protobuf.InvalidProtocolBufferException e) {
+            throw e.setUnfinishedMessage(builder.buildPartial());
+          } catch (com.google.protobuf.UninitializedMessageException e) {
+            throw e.asInvalidProtocolBufferException().setUnfinishedMessage(builder.buildPartial());
+          } catch (java.io.IOException e) {
+            throw new com.google.protobuf.InvalidProtocolBufferException(e)
+                .setUnfinishedMessage(builder.buildPartial());
+          }
+          return builder.buildPartial();
+        }
+      };
+
+  public static com.google.protobuf.Parser parser() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.protobuf.Parser getParserForType() {
+    return PARSER;
+  }
+
+  @java.lang.Override
+  public com.google.cloud.documentai.v1beta3.RevisionRef getDefaultInstanceForType() {
+    return DEFAULT_INSTANCE;
+  }
+}
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/RevisionRefOrBuilder.java b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/RevisionRefOrBuilder.java
new file mode 100644
index 000000000000..d9cf159c6ecc
--- /dev/null
+++ b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/java/com/google/cloud/documentai/v1beta3/RevisionRefOrBuilder.java
@@ -0,0 +1,144 @@
+/*
+ * Copyright 2023 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: google/cloud/documentai/v1beta3/document.proto
+
+package com.google.cloud.documentai.v1beta3;
+
+public interface RevisionRefOrBuilder
+    extends
+    // @@protoc_insertion_point(interface_extends:google.cloud.documentai.v1beta3.RevisionRef)
+    com.google.protobuf.MessageOrBuilder {
+
+  /**
+   *
+   *
+   * 
+   * Reads the revision by the predefined case.
+   * 

+   *
+   * .google.cloud.documentai.v1beta3.RevisionRef.RevisionCase revision_case = 1;
+   *
+   * @return Whether the revisionCase field is set.
+   */
+  boolean hasRevisionCase();
+  /**
+   *
+   *
+   * 
+   * Reads the revision by the predefined case.
+   * 

+   *
+   * .google.cloud.documentai.v1beta3.RevisionRef.RevisionCase revision_case = 1;
+   *
+   * @return The enum numeric value on the wire for revisionCase.
+   */
+  int getRevisionCaseValue();
+  /**
+   *
+   *
+   * 
+   * Reads the revision by the predefined case.
+   * 

+   *
+   * .google.cloud.documentai.v1beta3.RevisionRef.RevisionCase revision_case = 1;
+   *
+   * @return The revisionCase.
+   */
+  com.google.cloud.documentai.v1beta3.RevisionRef.RevisionCase getRevisionCase();
+
+  /**
+   *
+   *
+   * 
+   * Reads the revision given by the id.
+   * 

+   *
+   * string revision_id = 2;
+   *
+   * @return Whether the revisionId field is set.
+   */
+  boolean hasRevisionId();
+  /**
+   *
+   *
+   * 
+   * Reads the revision given by the id.
+   * 

+   *
+   * string revision_id = 2;
+   *
+   * @return The revisionId.
+   */
+  java.lang.String getRevisionId();
+  /**
+   *
+   *
+   * 
+   * Reads the revision given by the id.
+   * 

+   *
+   * string revision_id = 2;
+   *
+   * @return The bytes for revisionId.
+   */
+  com.google.protobuf.ByteString getRevisionIdBytes();
+
+  /**
+   *
+   *
+   * 
+   * Reads the revision generated by the processor version.
+   * The format takes the full resource name of processor version.
+   * `projects/{project}/locations/{location}/processors/{processor}/processorVersions/{processorVersion}`
+   * 

+   *
+   * string latest_processor_version = 3;
+   *
+   * @return Whether the latestProcessorVersion field is set.
+   */
+  boolean hasLatestProcessorVersion();
+  /**
+   *
+   *
+   * 
+   * Reads the revision generated by the processor version.
+   * The format takes the full resource name of processor version.
+   * `projects/{project}/locations/{location}/processors/{processor}/processorVersions/{processorVersion}`
+   * 

+   *
+   * string latest_processor_version = 3;
+   *
+   * @return The latestProcessorVersion.
+   */
+  java.lang.String getLatestProcessorVersion();
+  /**
+   *
+   *
+   * 
+   * Reads the revision generated by the processor version.
+   * The format takes the full resource name of processor version.
+   * `projects/{project}/locations/{location}/processors/{processor}/processorVersions/{processorVersion}`
+   * 

+   *
+   * string latest_processor_version = 3;
+   *
+   * @return The bytes for latestProcessorVersion.
+   */
+  com.google.protobuf.ByteString getLatestProcessorVersionBytes();
+
+  com.google.cloud.documentai.v1beta3.RevisionRef.SourceCase getSourceCase();
+}
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/proto/google/cloud/documentai/v1beta3/dataset.proto b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/proto/google/cloud/documentai/v1beta3/dataset.proto
index fa50183bbb50..5f366e3372ab 100644
--- a/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/proto/google/cloud/documentai/v1beta3/dataset.proto
+++ b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/proto/google/cloud/documentai/v1beta3/dataset.proto
@@ -18,6 +18,7 @@ package google.cloud.documentai.v1beta3;
 
 import "google/api/field_behavior.proto";
 import "google/api/resource.proto";
+import "google/cloud/documentai/v1beta3/document.proto";
 import "google/cloud/documentai/v1beta3/document_io.proto";
 import "google/cloud/documentai/v1beta3/document_schema.proto";
 
@@ -121,6 +122,37 @@ message Dataset {
   State state = 2 [(google.api.field_behavior) = REQUIRED];
 }
 
+// Document Identifier.
+message DocumentId {
+  // Identifies a document uniquely within the scope of a dataset in the
+  // user-managed Cloud Storage option.
+  message GCSManagedDocumentId {
+    // Required. The Cloud Storage URI where the actual document is stored.
+    string gcs_uri = 1 [(google.api.field_behavior) = REQUIRED];
+
+    // Id of the document (indexed) managed by Content Warehouse.
+    string cw_doc_id = 2 [deprecated = true];
+  }
+
+  // Identifies a document uniquely within the scope of a dataset in unmanaged
+  // option.
+  message UnmanagedDocumentId {
+    // Required. The id of the document.
+    string doc_id = 1 [(google.api.field_behavior) = REQUIRED];
+  }
+
+  oneof type {
+    // A document id within user-managed Cloud Storage.
+    GCSManagedDocumentId gcs_managed_doc_id = 1;
+
+    // A document id within unmanaged dataset.
+    UnmanagedDocumentId unmanaged_doc_id = 4;
+  }
+
+  // Points to a specific revision of the document if set.
+  RevisionRef revision_ref = 3;
+}
+
 // Dataset Schema.
 message DatasetSchema {
   option (google.api.resource) = {
@@ -136,3 +168,24 @@ message DatasetSchema {
   // Optional. Schema of the dataset.
   DocumentSchema document_schema = 3 [(google.api.field_behavior) = OPTIONAL];
 }
+
+// Dataset documents that the batch operation will be applied to.
+message BatchDatasetDocuments {
+  // List of individual DocumentIds.
+  message IndividualDocumentIds {
+    // Required. List of Document IDs indicating where the actual documents are
+    // stored.
+    repeated DocumentId document_ids = 1
+        [(google.api.field_behavior) = REQUIRED];
+  }
+
+  oneof criteria {
+    // Document identifiers.
+    IndividualDocumentIds individual_document_ids = 1;
+
+    // A filter matching the documents.
+    // Follows the same format and restriction as
+    // [google.cloud.documentai.master.ListDocumentsRequest.filter].
+    string filter = 2;
+  }
+}
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/proto/google/cloud/documentai/v1beta3/document.proto b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/proto/google/cloud/documentai/v1beta3/document.proto
index 8250d4d66608..977989bfa143 100644
--- a/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/proto/google/cloud/documentai/v1beta3/document.proto
+++ b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/proto/google/cloud/documentai/v1beta3/document.proto
@@ -950,3 +950,35 @@ message Document {
   // Placeholder. Revision history of this document.
   repeated Revision revisions = 13;
 }
+
+// The revision reference specifies which revision on the document to read.
+message RevisionRef {
+  // Some predefined revision cases.
+  enum RevisionCase {
+    // Unspecified case, fallback to read the LATEST_HUMAN_REVIEW.
+    REVISION_CASE_UNSPECIFIED = 0;
+
+    // The latest revision made by a human.
+    LATEST_HUMAN_REVIEW = 1;
+
+    // The latest revision based on timestamp.
+    LATEST_TIMESTAMP = 2;
+
+    // The first (OCR) revision.
+    BASE_OCR_REVISION = 3;
+  }
+
+  // Specifies which revision to read.
+  oneof source {
+    // Reads the revision by the predefined case.
+    RevisionCase revision_case = 1;
+
+    // Reads the revision given by the id.
+    string revision_id = 2;
+
+    // Reads the revision generated by the processor version.
+    // The format takes the full resource name of processor version.
+    // `projects/{project}/locations/{location}/processors/{processor}/processorVersions/{processorVersion}`
+    string latest_processor_version = 3;
+  }
+}
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/proto/google/cloud/documentai/v1beta3/document_processor_service.proto b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/proto/google/cloud/documentai/v1beta3/document_processor_service.proto
index b2a873625941..54f6794d407a 100644
--- a/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/proto/google/cloud/documentai/v1beta3/document_processor_service.proto
+++ b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/proto/google/cloud/documentai/v1beta3/document_processor_service.proto
@@ -358,6 +358,9 @@ message ProcessRequest {
 
     // A raw document content (bytes).
     RawDocument raw_document = 5;
+
+    // A raw document on Google Cloud Storage.
+    GcsDocument gcs_document = 8;
   }
 
   // Required. The resource name of the
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/proto/google/cloud/documentai/v1beta3/document_service.proto b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/proto/google/cloud/documentai/v1beta3/document_service.proto
index 8dcf239e36fd..9acc531986c7 100644
--- a/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/proto/google/cloud/documentai/v1beta3/document_service.proto
+++ b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/proto/google/cloud/documentai/v1beta3/document_service.proto
@@ -21,9 +21,12 @@ import "google/api/client.proto";
 import "google/api/field_behavior.proto";
 import "google/api/resource.proto";
 import "google/cloud/documentai/v1beta3/dataset.proto";
+import "google/cloud/documentai/v1beta3/document.proto";
+import "google/cloud/documentai/v1beta3/document_io.proto";
 import "google/cloud/documentai/v1beta3/operation_metadata.proto";
 import "google/longrunning/operations.proto";
 import "google/protobuf/field_mask.proto";
+import "google/rpc/status.proto";
 
 option csharp_namespace = "Google.Cloud.DocumentAI.V1Beta3";
 option go_package = "cloud.google.com/go/documentai/apiv1beta3/documentaipb;documentaipb";
@@ -53,6 +56,42 @@ service DocumentService {
     };
   }
 
+  // Import documents into a dataset.
+  rpc ImportDocuments(ImportDocumentsRequest)
+      returns (google.longrunning.Operation) {
+    option (google.api.http) = {
+      post: "/v1beta3/{dataset=projects/*/locations/*/processors/*/dataset}:importDocuments"
+      body: "*"
+    };
+    option (google.api.method_signature) = "dataset";
+    option (google.longrunning.operation_info) = {
+      response_type: "ImportDocumentsResponse"
+      metadata_type: "ImportDocumentsMetadata"
+    };
+  }
+
+  // Returns relevant fields present in the requested document.
+  rpc GetDocument(GetDocumentRequest) returns (GetDocumentResponse) {
+    option (google.api.http) = {
+      get: "/v1beta3/{dataset=projects/*/locations/*/processors/*/dataset}:getDocument"
+    };
+    option (google.api.method_signature) = "dataset";
+  }
+
+  // Deletes a set of documents.
+  rpc BatchDeleteDocuments(BatchDeleteDocumentsRequest)
+      returns (google.longrunning.Operation) {
+    option (google.api.http) = {
+      post: "/v1beta3/{dataset=projects/*/locations/*/processors/*/dataset}:batchDeleteDocuments"
+      body: "*"
+    };
+    option (google.api.method_signature) = "dataset";
+    option (google.longrunning.operation_info) = {
+      response_type: "BatchDeleteDocumentsResponse"
+      metadata_type: "BatchDeleteDocumentsMetadata"
+    };
+  }
+
   // Gets the `DatasetSchema` of a `Dataset`.
   rpc GetDatasetSchema(GetDatasetSchemaRequest) returns (DatasetSchema) {
     option (google.api.http) = {
@@ -71,6 +110,23 @@ service DocumentService {
   }
 }
 
+// Documents belonging to a dataset will be split into different groups
+// referred to as splits: train, test.
+enum DatasetSplitType {
+  // Default value if the enum is not set.
+  // go/protodosdonts#do-include-an-unspecified-value-in-an-enum
+  DATASET_SPLIT_TYPE_UNSPECIFIED = 0;
+
+  // Identifies the train documents.
+  DATASET_SPLIT_TRAIN = 1;
+
+  // Identifies the test documents.
+  DATASET_SPLIT_TEST = 2;
+
+  // Identifies the unassigned documents.
+  DATASET_SPLIT_UNASSIGNED = 3;
+}
+
 message UpdateDatasetRequest {
   // Required. The `name` field of the `Dataset` is used to identify the
   // resource to be updated.
@@ -85,6 +141,154 @@ message UpdateDatasetOperationMetadata {
   CommonOperationMetadata common_metadata = 1;
 }
 
+message ImportDocumentsRequest {
+  // Config for importing documents.
+  // Each batch can have its own dataset split type.
+  message BatchDocumentsImportConfig {
+    // The config for auto-split.
+    message AutoSplitConfig {
+      // Ratio of training dataset split.
+      float training_split_ratio = 1;
+    }
+
+    oneof split_type_config {
+      // Target dataset split where the documents must be stored.
+      DatasetSplitType dataset_split = 2;
+
+      // If set, documents will be automatically split into training and test
+      // split category with the specified ratio.
+      AutoSplitConfig auto_split_config = 3;
+    }
+
+    // The common config to specify a set of documents used as input.
+    BatchDocumentsInputConfig batch_input_config = 1;
+  }
+
+  // Required. The dataset resource name.
+  // Format:
+  // projects/{project}/locations/{location}/processors/{processor}/dataset
+  string dataset = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      type: "documentai.googleapis.com/Dataset"
+    }
+  ];
+
+  // Required. The Cloud Storage uri containing raw documents that must be
+  // imported.
+  repeated BatchDocumentsImportConfig batch_documents_import_configs = 4
+      [(google.api.field_behavior) = REQUIRED];
+}
+
+// Response of the import document operation.
+message ImportDocumentsResponse {}
+
+// Metadata of the import document operation.
+message ImportDocumentsMetadata {
+  // The status of each individual document in the import process.
+  message IndividualImportStatus {
+    // The source Cloud Storage URI of the document.
+    string input_gcs_source = 1;
+
+    // The status of the importing of the document.
+    google.rpc.Status status = 2;
+
+    // The document id of imported document if it was successful, otherwise
+    // empty.
+    DocumentId output_document_id = 4;
+  }
+
+  // The validation status of each import config. Status is set to errors if
+  // there is no documents to import in the import_config, or OK if the
+  // operation will try to proceed at least one document.
+  message ImportConfigValidationResult {
+    // The source Cloud Storage URI specified in the import config.
+    string input_gcs_source = 1;
+
+    // The validation status of import config.
+    google.rpc.Status status = 2;
+  }
+
+  // The basic metadata of the long running operation.
+  CommonOperationMetadata common_metadata = 1;
+
+  // The list of response details of each document.
+  repeated IndividualImportStatus individual_import_statuses = 2;
+
+  // Validation statuses of the batch documents import config.
+  repeated ImportConfigValidationResult import_config_validation_results = 4;
+
+  // Total number of the documents that are qualified for importing.
+  int32 total_document_count = 3;
+}
+
+message GetDocumentRequest {
+  // Required. The resource name of the dataset that the document belongs to .
+  // Format:
+  // projects/{project}/locations/{location}/processors/{processor}/dataset
+  string dataset = 1 [
+    (google.api.field_behavior) = REQUIRED,
+    (google.api.resource_reference) = {
+      type: "documentai.googleapis.com/Dataset"
+    }
+  ];
+
+  // Required. Document identifier.
+  DocumentId document_id = 2 [(google.api.field_behavior) = REQUIRED];
+
+  // If set, only fields listed here will be returned. Otherwise, all fields
+  // will be returned by default.
+  google.protobuf.FieldMask read_mask = 3;
+
+  // List of pages for which the fields specified in the `read_mask` must
+  // be served.
+  DocumentPageRange page_range = 4;
+}
+
+message GetDocumentResponse {
+  Document document = 1;
+}
+
+message BatchDeleteDocumentsRequest {
+  // Required. The dataset resource name.
+  // Format:
+  // projects/{project}/locations/{location}/processors/{processor}/dataset
+  string dataset = 1 [(google.api.field_behavior) = REQUIRED];
+
+  // Required. Dataset documents input. If given `filter`, all documents
+  // satisfying the filter will be deleted. If given documentIds, a maximum of
+  // 50 documents can be deleted in a batch. The request will be rejected if
+  // more than 50 document_ids are provided.
+  BatchDatasetDocuments dataset_documents = 3
+      [(google.api.field_behavior) = REQUIRED];
+}
+
+// Response of the delete documents operation.
+message BatchDeleteDocumentsResponse {}
+
+message BatchDeleteDocumentsMetadata {
+  // The status of each individual document in the batch delete process.
+  message IndividualBatchDeleteStatus {
+    // The document id of the document.
+    DocumentId document_id = 1;
+
+    // The status of deleting the document in storage.
+    google.rpc.Status status = 2;
+  }
+
+  // The basic metadata of the long running operation.
+  CommonOperationMetadata common_metadata = 1;
+
+  // The list of response details of each document.
+  repeated IndividualBatchDeleteStatus individual_batch_delete_statuses = 2;
+
+  // Total number of documents deleting from dataset.
+  int32 total_document_count = 3;
+
+  // Total number of documents that failed to be deleted in storage.
+  int32 error_document_count = 4;
+}
+
 // Request for `GetDatasetSchema`.
 message GetDatasetSchemaRequest {
   // Required. The dataset schema resource name.
@@ -110,3 +314,12 @@ message UpdateDatasetSchemaRequest {
   // The update mask applies to the resource.
   google.protobuf.FieldMask update_mask = 2;
 }
+
+// Range of pages present in a document.
+message DocumentPageRange {
+  // First page number (one-based index) to be returned.
+  int32 start = 1;
+
+  // Last page number (one-based index) to be returned.
+  int32 end = 2;
+}
diff --git a/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/proto/google/cloud/documentai/v1beta3/processor.proto b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/proto/google/cloud/documentai/v1beta3/processor.proto
index bafcdc0f430c..beb1ccddb08a 100644
--- a/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/proto/google/cloud/documentai/v1beta3/processor.proto
+++ b/java-document-ai/proto-google-cloud-document-ai-v1beta3/src/main/proto/google/cloud/documentai/v1beta3/processor.proto
@@ -108,8 +108,8 @@ message ProcessorVersion {
   // The KMS key version with which data is encrypted.
   string kms_key_version_name = 10;
 
-  // Denotes that this `ProcessorVersion` is managed by Google.
-  bool google_managed = 11;
+  // Output only. Denotes that this `ProcessorVersion` is managed by Google.
+  bool google_managed = 11 [(google.api.field_behavior) = OUTPUT_ONLY];
 
   // If set, information about the eventual deprecation of this version.
   DeprecationInfo deprecation_info = 13;
diff --git a/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1/documentprocessorservice/batchprocessdocuments/AsyncBatchProcessDocuments.java b/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1/documentprocessorservice/batchprocessdocuments/AsyncBatchProcessDocuments.java
index f1169a5185a7..15303ae64efd 100644
--- a/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1/documentprocessorservice/batchprocessdocuments/AsyncBatchProcessDocuments.java
+++ b/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1/documentprocessorservice/batchprocessdocuments/AsyncBatchProcessDocuments.java
@@ -22,6 +22,7 @@
 import com.google.cloud.documentai.v1.BatchProcessRequest;
 import com.google.cloud.documentai.v1.DocumentOutputConfig;
 import com.google.cloud.documentai.v1.DocumentProcessorServiceClient;
+import com.google.cloud.documentai.v1.ProcessOptions;
 import com.google.cloud.documentai.v1.ProcessorName;
 import com.google.longrunning.Operation;
 
@@ -45,6 +46,7 @@ public static void asyncBatchProcessDocuments() throws Exception {
               .setInputDocuments(BatchDocumentsInputConfig.newBuilder().build())
               .setDocumentOutputConfig(DocumentOutputConfig.newBuilder().build())
               .setSkipHumanReview(true)
+              .setProcessOptions(ProcessOptions.newBuilder().build())
               .build();
       ApiFuture future =
           documentProcessorServiceClient.batchProcessDocumentsCallable().futureCall(request);
diff --git a/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1/documentprocessorservice/batchprocessdocuments/AsyncBatchProcessDocumentsLRO.java b/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1/documentprocessorservice/batchprocessdocuments/AsyncBatchProcessDocumentsLRO.java
index db86f402b940..93a17e43adc6 100644
--- a/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1/documentprocessorservice/batchprocessdocuments/AsyncBatchProcessDocumentsLRO.java
+++ b/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1/documentprocessorservice/batchprocessdocuments/AsyncBatchProcessDocumentsLRO.java
@@ -24,6 +24,7 @@
 import com.google.cloud.documentai.v1.BatchProcessResponse;
 import com.google.cloud.documentai.v1.DocumentOutputConfig;
 import com.google.cloud.documentai.v1.DocumentProcessorServiceClient;
+import com.google.cloud.documentai.v1.ProcessOptions;
 import com.google.cloud.documentai.v1.ProcessorName;
 
 public class AsyncBatchProcessDocumentsLRO {
@@ -46,6 +47,7 @@ public static void asyncBatchProcessDocumentsLRO() throws Exception {
               .setInputDocuments(BatchDocumentsInputConfig.newBuilder().build())
               .setDocumentOutputConfig(DocumentOutputConfig.newBuilder().build())
               .setSkipHumanReview(true)
+              .setProcessOptions(ProcessOptions.newBuilder().build())
               .build();
       OperationFuture future =
           documentProcessorServiceClient
diff --git a/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1/documentprocessorservice/batchprocessdocuments/SyncBatchProcessDocuments.java b/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1/documentprocessorservice/batchprocessdocuments/SyncBatchProcessDocuments.java
index e218fd57b760..7b0da236b13a 100644
--- a/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1/documentprocessorservice/batchprocessdocuments/SyncBatchProcessDocuments.java
+++ b/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1/documentprocessorservice/batchprocessdocuments/SyncBatchProcessDocuments.java
@@ -22,6 +22,7 @@
 import com.google.cloud.documentai.v1.BatchProcessResponse;
 import com.google.cloud.documentai.v1.DocumentOutputConfig;
 import com.google.cloud.documentai.v1.DocumentProcessorServiceClient;
+import com.google.cloud.documentai.v1.ProcessOptions;
 import com.google.cloud.documentai.v1.ProcessorName;
 
 public class SyncBatchProcessDocuments {
@@ -44,6 +45,7 @@ public static void syncBatchProcessDocuments() throws Exception {
               .setInputDocuments(BatchDocumentsInputConfig.newBuilder().build())
               .setDocumentOutputConfig(DocumentOutputConfig.newBuilder().build())
               .setSkipHumanReview(true)
+              .setProcessOptions(ProcessOptions.newBuilder().build())
               .build();
       BatchProcessResponse response =
           documentProcessorServiceClient.batchProcessDocumentsAsync(request).get();
diff --git a/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1/documentprocessorservice/processdocument/AsyncProcessDocument.java b/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1/documentprocessorservice/processdocument/AsyncProcessDocument.java
index ec2b1fb72955..70dc53570ebd 100644
--- a/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1/documentprocessorservice/processdocument/AsyncProcessDocument.java
+++ b/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1/documentprocessorservice/processdocument/AsyncProcessDocument.java
@@ -19,6 +19,7 @@
 // [START documentai_v1_generated_DocumentProcessorService_ProcessDocument_async]
 import com.google.api.core.ApiFuture;
 import com.google.cloud.documentai.v1.DocumentProcessorServiceClient;
+import com.google.cloud.documentai.v1.ProcessOptions;
 import com.google.cloud.documentai.v1.ProcessRequest;
 import com.google.cloud.documentai.v1.ProcessResponse;
 import com.google.cloud.documentai.v1.ProcessorName;
@@ -43,6 +44,7 @@ public static void asyncProcessDocument() throws Exception {
               .setName(ProcessorName.of("[PROJECT]", "[LOCATION]", "[PROCESSOR]").toString())
               .setSkipHumanReview(true)
               .setFieldMask(FieldMask.newBuilder().build())
+              .setProcessOptions(ProcessOptions.newBuilder().build())
               .build();
       ApiFuture future =
           documentProcessorServiceClient.processDocumentCallable().futureCall(request);
diff --git a/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1/documentprocessorservice/processdocument/SyncProcessDocument.java b/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1/documentprocessorservice/processdocument/SyncProcessDocument.java
index 1606d462e74e..1d72253fbbaa 100644
--- a/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1/documentprocessorservice/processdocument/SyncProcessDocument.java
+++ b/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1/documentprocessorservice/processdocument/SyncProcessDocument.java
@@ -18,6 +18,7 @@
 
 // [START documentai_v1_generated_DocumentProcessorService_ProcessDocument_sync]
 import com.google.cloud.documentai.v1.DocumentProcessorServiceClient;
+import com.google.cloud.documentai.v1.ProcessOptions;
 import com.google.cloud.documentai.v1.ProcessRequest;
 import com.google.cloud.documentai.v1.ProcessResponse;
 import com.google.cloud.documentai.v1.ProcessorName;
@@ -42,6 +43,7 @@ public static void syncProcessDocument() throws Exception {
               .setName(ProcessorName.of("[PROJECT]", "[LOCATION]", "[PROCESSOR]").toString())
               .setSkipHumanReview(true)
               .setFieldMask(FieldMask.newBuilder().build())
+              .setProcessOptions(ProcessOptions.newBuilder().build())
               .build();
       ProcessResponse response = documentProcessorServiceClient.processDocument(request);
     }
diff --git a/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta2/documentunderstandingservice/getlocation/AsyncGetLocation.java b/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta2/documentunderstandingservice/getlocation/AsyncGetLocation.java
new file mode 100644
index 000000000000..56f817ca777e
--- /dev/null
+++ b/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta2/documentunderstandingservice/getlocation/AsyncGetLocation.java
@@ -0,0 +1,47 @@
+/*
+ * Copyright 2023 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.documentai.v1beta2.samples;
+
+// [START documentai_v1beta2_generated_DocumentUnderstandingService_GetLocation_async]
+import com.google.api.core.ApiFuture;
+import com.google.cloud.documentai.v1beta2.DocumentUnderstandingServiceClient;
+import com.google.cloud.location.GetLocationRequest;
+import com.google.cloud.location.Location;
+
+public class AsyncGetLocation {
+
+  public static void main(String[] args) throws Exception {
+    asyncGetLocation();
+  }
+
+  public static void asyncGetLocation() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (DocumentUnderstandingServiceClient documentUnderstandingServiceClient =
+        DocumentUnderstandingServiceClient.create()) {
+      GetLocationRequest request = GetLocationRequest.newBuilder().setName("name3373707").build();
+      ApiFuture future =
+          documentUnderstandingServiceClient.getLocationCallable().futureCall(request);
+      // Do something.
+      Location response = future.get();
+    }
+  }
+}
+// [END documentai_v1beta2_generated_DocumentUnderstandingService_GetLocation_async]
diff --git a/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta2/documentunderstandingservice/getlocation/SyncGetLocation.java b/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta2/documentunderstandingservice/getlocation/SyncGetLocation.java
new file mode 100644
index 000000000000..ae2a22e72237
--- /dev/null
+++ b/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta2/documentunderstandingservice/getlocation/SyncGetLocation.java
@@ -0,0 +1,43 @@
+/*
+ * Copyright 2023 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.documentai.v1beta2.samples;
+
+// [START documentai_v1beta2_generated_DocumentUnderstandingService_GetLocation_sync]
+import com.google.cloud.documentai.v1beta2.DocumentUnderstandingServiceClient;
+import com.google.cloud.location.GetLocationRequest;
+import com.google.cloud.location.Location;
+
+public class SyncGetLocation {
+
+  public static void main(String[] args) throws Exception {
+    syncGetLocation();
+  }
+
+  public static void syncGetLocation() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (DocumentUnderstandingServiceClient documentUnderstandingServiceClient =
+        DocumentUnderstandingServiceClient.create()) {
+      GetLocationRequest request = GetLocationRequest.newBuilder().setName("name3373707").build();
+      Location response = documentUnderstandingServiceClient.getLocation(request);
+    }
+  }
+}
+// [END documentai_v1beta2_generated_DocumentUnderstandingService_GetLocation_sync]
diff --git a/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta2/documentunderstandingservice/listlocations/AsyncListLocations.java b/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta2/documentunderstandingservice/listlocations/AsyncListLocations.java
new file mode 100644
index 000000000000..f204e99ce029
--- /dev/null
+++ b/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta2/documentunderstandingservice/listlocations/AsyncListLocations.java
@@ -0,0 +1,55 @@
+/*
+ * Copyright 2023 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.documentai.v1beta2.samples;
+
+// [START documentai_v1beta2_generated_DocumentUnderstandingService_ListLocations_async]
+import com.google.api.core.ApiFuture;
+import com.google.cloud.documentai.v1beta2.DocumentUnderstandingServiceClient;
+import com.google.cloud.location.ListLocationsRequest;
+import com.google.cloud.location.Location;
+
+public class AsyncListLocations {
+
+  public static void main(String[] args) throws Exception {
+    asyncListLocations();
+  }
+
+  public static void asyncListLocations() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (DocumentUnderstandingServiceClient documentUnderstandingServiceClient =
+        DocumentUnderstandingServiceClient.create()) {
+      ListLocationsRequest request =
+          ListLocationsRequest.newBuilder()
+              .setName("name3373707")
+              .setFilter("filter-1274492040")
+              .setPageSize(883849137)
+              .setPageToken("pageToken873572522")
+              .build();
+      ApiFuture future =
+          documentUnderstandingServiceClient.listLocationsPagedCallable().futureCall(request);
+      // Do something.
+      for (Location element : future.get().iterateAll()) {
+        // doThingsWith(element);
+      }
+    }
+  }
+}
+// [END documentai_v1beta2_generated_DocumentUnderstandingService_ListLocations_async]
diff --git a/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta2/documentunderstandingservice/listlocations/AsyncListLocationsPaged.java b/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta2/documentunderstandingservice/listlocations/AsyncListLocationsPaged.java
new file mode 100644
index 000000000000..cd0aabf66f33
--- /dev/null
+++ b/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta2/documentunderstandingservice/listlocations/AsyncListLocationsPaged.java
@@ -0,0 +1,63 @@
+/*
+ * Copyright 2023 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.documentai.v1beta2.samples;
+
+// [START documentai_v1beta2_generated_DocumentUnderstandingService_ListLocations_Paged_async]
+import com.google.cloud.documentai.v1beta2.DocumentUnderstandingServiceClient;
+import com.google.cloud.location.ListLocationsRequest;
+import com.google.cloud.location.ListLocationsResponse;
+import com.google.cloud.location.Location;
+import com.google.common.base.Strings;
+
+public class AsyncListLocationsPaged {
+
+  public static void main(String[] args) throws Exception {
+    asyncListLocationsPaged();
+  }
+
+  public static void asyncListLocationsPaged() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (DocumentUnderstandingServiceClient documentUnderstandingServiceClient =
+        DocumentUnderstandingServiceClient.create()) {
+      ListLocationsRequest request =
+          ListLocationsRequest.newBuilder()
+              .setName("name3373707")
+              .setFilter("filter-1274492040")
+              .setPageSize(883849137)
+              .setPageToken("pageToken873572522")
+              .build();
+      while (true) {
+        ListLocationsResponse response =
+            documentUnderstandingServiceClient.listLocationsCallable().call(request);
+        for (Location element : response.getLocationsList()) {
+          // doThingsWith(element);
+        }
+        String nextPageToken = response.getNextPageToken();
+        if (!Strings.isNullOrEmpty(nextPageToken)) {
+          request = request.toBuilder().setPageToken(nextPageToken).build();
+        } else {
+          break;
+        }
+      }
+    }
+  }
+}
+// [END documentai_v1beta2_generated_DocumentUnderstandingService_ListLocations_Paged_async]
diff --git a/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta2/documentunderstandingservice/listlocations/SyncListLocations.java b/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta2/documentunderstandingservice/listlocations/SyncListLocations.java
new file mode 100644
index 000000000000..eedffa77c1e5
--- /dev/null
+++ b/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta2/documentunderstandingservice/listlocations/SyncListLocations.java
@@ -0,0 +1,52 @@
+/*
+ * Copyright 2023 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.documentai.v1beta2.samples;
+
+// [START documentai_v1beta2_generated_DocumentUnderstandingService_ListLocations_sync]
+import com.google.cloud.documentai.v1beta2.DocumentUnderstandingServiceClient;
+import com.google.cloud.location.ListLocationsRequest;
+import com.google.cloud.location.Location;
+
+public class SyncListLocations {
+
+  public static void main(String[] args) throws Exception {
+    syncListLocations();
+  }
+
+  public static void syncListLocations() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (DocumentUnderstandingServiceClient documentUnderstandingServiceClient =
+        DocumentUnderstandingServiceClient.create()) {
+      ListLocationsRequest request =
+          ListLocationsRequest.newBuilder()
+              .setName("name3373707")
+              .setFilter("filter-1274492040")
+              .setPageSize(883849137)
+              .setPageToken("pageToken873572522")
+              .build();
+      for (Location element :
+          documentUnderstandingServiceClient.listLocations(request).iterateAll()) {
+        // doThingsWith(element);
+      }
+    }
+  }
+}
+// [END documentai_v1beta2_generated_DocumentUnderstandingService_ListLocations_sync]
diff --git a/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta3/documentprocessorservice/batchprocessdocuments/SyncBatchProcessDocumentsString.java b/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta3/documentprocessorservice/batchprocessdocuments/SyncBatchProcessDocumentsString.java
index 2129f36e9a56..3c0acf1264c9 100644
--- a/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta3/documentprocessorservice/batchprocessdocuments/SyncBatchProcessDocumentsString.java
+++ b/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta3/documentprocessorservice/batchprocessdocuments/SyncBatchProcessDocumentsString.java
@@ -18,7 +18,7 @@
 
 // [START documentai_v1beta3_generated_DocumentProcessorService_BatchProcessDocuments_String_sync]
 import com.google.cloud.documentai.v1beta3.BatchProcessResponse;
-import com.google.cloud.documentai.v1beta3.DatasetSchemaName;
+import com.google.cloud.documentai.v1beta3.DatasetName;
 import com.google.cloud.documentai.v1beta3.DocumentProcessorServiceClient;
 
 public class SyncBatchProcessDocumentsString {
@@ -35,7 +35,7 @@ public static void syncBatchProcessDocumentsString() throws Exception {
     // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
     try (DocumentProcessorServiceClient documentProcessorServiceClient =
         DocumentProcessorServiceClient.create()) {
-      String name = DatasetSchemaName.of("[PROJECT]", "[LOCATION]", "[PROCESSOR]").toString();
+      String name = DatasetName.of("[PROJECT]", "[LOCATION]", "[PROCESSOR]").toString();
       BatchProcessResponse response =
           documentProcessorServiceClient.batchProcessDocumentsAsync(name).get();
     }
diff --git a/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta3/documentprocessorservice/processdocument/SyncProcessDocumentString.java b/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta3/documentprocessorservice/processdocument/SyncProcessDocumentString.java
index ef9bc1cd3aac..b1be36a60a5a 100644
--- a/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta3/documentprocessorservice/processdocument/SyncProcessDocumentString.java
+++ b/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta3/documentprocessorservice/processdocument/SyncProcessDocumentString.java
@@ -17,7 +17,7 @@
 package com.google.cloud.documentai.v1beta3.samples;
 
 // [START documentai_v1beta3_generated_DocumentProcessorService_ProcessDocument_String_sync]
-import com.google.cloud.documentai.v1beta3.DatasetSchemaName;
+import com.google.cloud.documentai.v1beta3.DatasetName;
 import com.google.cloud.documentai.v1beta3.DocumentProcessorServiceClient;
 import com.google.cloud.documentai.v1beta3.ProcessResponse;
 
@@ -35,7 +35,7 @@ public static void syncProcessDocumentString() throws Exception {
     // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
     try (DocumentProcessorServiceClient documentProcessorServiceClient =
         DocumentProcessorServiceClient.create()) {
-      String name = DatasetSchemaName.of("[PROJECT]", "[LOCATION]", "[PROCESSOR]").toString();
+      String name = DatasetName.of("[PROJECT]", "[LOCATION]", "[PROCESSOR]").toString();
       ProcessResponse response = documentProcessorServiceClient.processDocument(name);
     }
   }
diff --git a/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta3/documentservice/batchdeletedocuments/AsyncBatchDeleteDocuments.java b/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta3/documentservice/batchdeletedocuments/AsyncBatchDeleteDocuments.java
new file mode 100644
index 000000000000..f506d91f1f65
--- /dev/null
+++ b/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta3/documentservice/batchdeletedocuments/AsyncBatchDeleteDocuments.java
@@ -0,0 +1,51 @@
+/*
+ * Copyright 2023 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.documentai.v1beta3.samples;
+
+// [START documentai_v1beta3_generated_DocumentService_BatchDeleteDocuments_async]
+import com.google.api.core.ApiFuture;
+import com.google.cloud.documentai.v1beta3.BatchDatasetDocuments;
+import com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsRequest;
+import com.google.cloud.documentai.v1beta3.DocumentServiceClient;
+import com.google.longrunning.Operation;
+
+public class AsyncBatchDeleteDocuments {
+
+  public static void main(String[] args) throws Exception {
+    asyncBatchDeleteDocuments();
+  }
+
+  public static void asyncBatchDeleteDocuments() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (DocumentServiceClient documentServiceClient = DocumentServiceClient.create()) {
+      BatchDeleteDocumentsRequest request =
+          BatchDeleteDocumentsRequest.newBuilder()
+              .setDataset("dataset1443214456")
+              .setDatasetDocuments(BatchDatasetDocuments.newBuilder().build())
+              .build();
+      ApiFuture future =
+          documentServiceClient.batchDeleteDocumentsCallable().futureCall(request);
+      // Do something.
+      Operation response = future.get();
+    }
+  }
+}
+// [END documentai_v1beta3_generated_DocumentService_BatchDeleteDocuments_async]
diff --git a/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta3/documentservice/batchdeletedocuments/AsyncBatchDeleteDocumentsLRO.java b/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta3/documentservice/batchdeletedocuments/AsyncBatchDeleteDocumentsLRO.java
new file mode 100644
index 000000000000..23980ee5988b
--- /dev/null
+++ b/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta3/documentservice/batchdeletedocuments/AsyncBatchDeleteDocumentsLRO.java
@@ -0,0 +1,52 @@
+/*
+ * Copyright 2023 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.documentai.v1beta3.samples;
+
+// [START documentai_v1beta3_generated_DocumentService_BatchDeleteDocuments_LRO_async]
+import com.google.api.gax.longrunning.OperationFuture;
+import com.google.cloud.documentai.v1beta3.BatchDatasetDocuments;
+import com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsMetadata;
+import com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsRequest;
+import com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsResponse;
+import com.google.cloud.documentai.v1beta3.DocumentServiceClient;
+
+public class AsyncBatchDeleteDocumentsLRO {
+
+  public static void main(String[] args) throws Exception {
+    asyncBatchDeleteDocumentsLRO();
+  }
+
+  public static void asyncBatchDeleteDocumentsLRO() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (DocumentServiceClient documentServiceClient = DocumentServiceClient.create()) {
+      BatchDeleteDocumentsRequest request =
+          BatchDeleteDocumentsRequest.newBuilder()
+              .setDataset("dataset1443214456")
+              .setDatasetDocuments(BatchDatasetDocuments.newBuilder().build())
+              .build();
+      OperationFuture future =
+          documentServiceClient.batchDeleteDocumentsOperationCallable().futureCall(request);
+      // Do something.
+      BatchDeleteDocumentsResponse response = future.get();
+    }
+  }
+}
+// [END documentai_v1beta3_generated_DocumentService_BatchDeleteDocuments_LRO_async]
diff --git a/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta3/documentservice/batchdeletedocuments/SyncBatchDeleteDocuments.java b/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta3/documentservice/batchdeletedocuments/SyncBatchDeleteDocuments.java
new file mode 100644
index 000000000000..e34f14e0b3e4
--- /dev/null
+++ b/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta3/documentservice/batchdeletedocuments/SyncBatchDeleteDocuments.java
@@ -0,0 +1,48 @@
+/*
+ * Copyright 2023 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.documentai.v1beta3.samples;
+
+// [START documentai_v1beta3_generated_DocumentService_BatchDeleteDocuments_sync]
+import com.google.cloud.documentai.v1beta3.BatchDatasetDocuments;
+import com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsRequest;
+import com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsResponse;
+import com.google.cloud.documentai.v1beta3.DocumentServiceClient;
+
+public class SyncBatchDeleteDocuments {
+
+  public static void main(String[] args) throws Exception {
+    syncBatchDeleteDocuments();
+  }
+
+  public static void syncBatchDeleteDocuments() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (DocumentServiceClient documentServiceClient = DocumentServiceClient.create()) {
+      BatchDeleteDocumentsRequest request =
+          BatchDeleteDocumentsRequest.newBuilder()
+              .setDataset("dataset1443214456")
+              .setDatasetDocuments(BatchDatasetDocuments.newBuilder().build())
+              .build();
+      BatchDeleteDocumentsResponse response =
+          documentServiceClient.batchDeleteDocumentsAsync(request).get();
+    }
+  }
+}
+// [END documentai_v1beta3_generated_DocumentService_BatchDeleteDocuments_sync]
diff --git a/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta3/documentservice/batchdeletedocuments/SyncBatchDeleteDocumentsString.java b/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta3/documentservice/batchdeletedocuments/SyncBatchDeleteDocumentsString.java
new file mode 100644
index 000000000000..d251c216d486
--- /dev/null
+++ b/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta3/documentservice/batchdeletedocuments/SyncBatchDeleteDocumentsString.java
@@ -0,0 +1,42 @@
+/*
+ * Copyright 2023 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.documentai.v1beta3.samples;
+
+// [START documentai_v1beta3_generated_DocumentService_BatchDeleteDocuments_String_sync]
+import com.google.cloud.documentai.v1beta3.BatchDeleteDocumentsResponse;
+import com.google.cloud.documentai.v1beta3.DocumentServiceClient;
+
+public class SyncBatchDeleteDocumentsString {
+
+  public static void main(String[] args) throws Exception {
+    syncBatchDeleteDocumentsString();
+  }
+
+  public static void syncBatchDeleteDocumentsString() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (DocumentServiceClient documentServiceClient = DocumentServiceClient.create()) {
+      String dataset = "dataset1443214456";
+      BatchDeleteDocumentsResponse response =
+          documentServiceClient.batchDeleteDocumentsAsync(dataset).get();
+    }
+  }
+}
+// [END documentai_v1beta3_generated_DocumentService_BatchDeleteDocuments_String_sync]
diff --git a/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta3/documentservice/getdocument/AsyncGetDocument.java b/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta3/documentservice/getdocument/AsyncGetDocument.java
new file mode 100644
index 000000000000..bd86cc6e6b74
--- /dev/null
+++ b/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta3/documentservice/getdocument/AsyncGetDocument.java
@@ -0,0 +1,56 @@
+/*
+ * Copyright 2023 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.documentai.v1beta3.samples;
+
+// [START documentai_v1beta3_generated_DocumentService_GetDocument_async]
+import com.google.api.core.ApiFuture;
+import com.google.cloud.documentai.v1beta3.DatasetName;
+import com.google.cloud.documentai.v1beta3.DocumentId;
+import com.google.cloud.documentai.v1beta3.DocumentPageRange;
+import com.google.cloud.documentai.v1beta3.DocumentServiceClient;
+import com.google.cloud.documentai.v1beta3.GetDocumentRequest;
+import com.google.cloud.documentai.v1beta3.GetDocumentResponse;
+import com.google.protobuf.FieldMask;
+
+public class AsyncGetDocument {
+
+  public static void main(String[] args) throws Exception {
+    asyncGetDocument();
+  }
+
+  public static void asyncGetDocument() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (DocumentServiceClient documentServiceClient = DocumentServiceClient.create()) {
+      GetDocumentRequest request =
+          GetDocumentRequest.newBuilder()
+              .setDataset(DatasetName.of("[PROJECT]", "[LOCATION]", "[PROCESSOR]").toString())
+              .setDocumentId(DocumentId.newBuilder().build())
+              .setReadMask(FieldMask.newBuilder().build())
+              .setPageRange(DocumentPageRange.newBuilder().build())
+              .build();
+      ApiFuture future =
+          documentServiceClient.getDocumentCallable().futureCall(request);
+      // Do something.
+      GetDocumentResponse response = future.get();
+    }
+  }
+}
+// [END documentai_v1beta3_generated_DocumentService_GetDocument_async]
diff --git a/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta3/documentservice/getdocument/SyncGetDocument.java b/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta3/documentservice/getdocument/SyncGetDocument.java
new file mode 100644
index 000000000000..c2565567f13d
--- /dev/null
+++ b/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta3/documentservice/getdocument/SyncGetDocument.java
@@ -0,0 +1,52 @@
+/*
+ * Copyright 2023 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.documentai.v1beta3.samples;
+
+// [START documentai_v1beta3_generated_DocumentService_GetDocument_sync]
+import com.google.cloud.documentai.v1beta3.DatasetName;
+import com.google.cloud.documentai.v1beta3.DocumentId;
+import com.google.cloud.documentai.v1beta3.DocumentPageRange;
+import com.google.cloud.documentai.v1beta3.DocumentServiceClient;
+import com.google.cloud.documentai.v1beta3.GetDocumentRequest;
+import com.google.cloud.documentai.v1beta3.GetDocumentResponse;
+import com.google.protobuf.FieldMask;
+
+public class SyncGetDocument {
+
+  public static void main(String[] args) throws Exception {
+    syncGetDocument();
+  }
+
+  public static void syncGetDocument() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (DocumentServiceClient documentServiceClient = DocumentServiceClient.create()) {
+      GetDocumentRequest request =
+          GetDocumentRequest.newBuilder()
+              .setDataset(DatasetName.of("[PROJECT]", "[LOCATION]", "[PROCESSOR]").toString())
+              .setDocumentId(DocumentId.newBuilder().build())
+              .setReadMask(FieldMask.newBuilder().build())
+              .setPageRange(DocumentPageRange.newBuilder().build())
+              .build();
+      GetDocumentResponse response = documentServiceClient.getDocument(request);
+    }
+  }
+}
+// [END documentai_v1beta3_generated_DocumentService_GetDocument_sync]
diff --git a/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta3/documentservice/getdocument/SyncGetDocumentDatasetname.java b/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta3/documentservice/getdocument/SyncGetDocumentDatasetname.java
new file mode 100644
index 000000000000..70b47391a162
--- /dev/null
+++ b/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta3/documentservice/getdocument/SyncGetDocumentDatasetname.java
@@ -0,0 +1,42 @@
+/*
+ * Copyright 2023 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.documentai.v1beta3.samples;
+
+// [START documentai_v1beta3_generated_DocumentService_GetDocument_Datasetname_sync]
+import com.google.cloud.documentai.v1beta3.DatasetName;
+import com.google.cloud.documentai.v1beta3.DocumentServiceClient;
+import com.google.cloud.documentai.v1beta3.GetDocumentResponse;
+
+public class SyncGetDocumentDatasetname {
+
+  public static void main(String[] args) throws Exception {
+    syncGetDocumentDatasetname();
+  }
+
+  public static void syncGetDocumentDatasetname() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (DocumentServiceClient documentServiceClient = DocumentServiceClient.create()) {
+      DatasetName dataset = DatasetName.of("[PROJECT]", "[LOCATION]", "[PROCESSOR]");
+      GetDocumentResponse response = documentServiceClient.getDocument(dataset);
+    }
+  }
+}
+// [END documentai_v1beta3_generated_DocumentService_GetDocument_Datasetname_sync]
diff --git a/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta3/documentservice/getdocument/SyncGetDocumentString.java b/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta3/documentservice/getdocument/SyncGetDocumentString.java
new file mode 100644
index 000000000000..ff883391056c
--- /dev/null
+++ b/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta3/documentservice/getdocument/SyncGetDocumentString.java
@@ -0,0 +1,42 @@
+/*
+ * Copyright 2023 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.documentai.v1beta3.samples;
+
+// [START documentai_v1beta3_generated_DocumentService_GetDocument_String_sync]
+import com.google.cloud.documentai.v1beta3.DatasetName;
+import com.google.cloud.documentai.v1beta3.DocumentServiceClient;
+import com.google.cloud.documentai.v1beta3.GetDocumentResponse;
+
+public class SyncGetDocumentString {
+
+  public static void main(String[] args) throws Exception {
+    syncGetDocumentString();
+  }
+
+  public static void syncGetDocumentString() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (DocumentServiceClient documentServiceClient = DocumentServiceClient.create()) {
+      String dataset = DatasetName.of("[PROJECT]", "[LOCATION]", "[PROCESSOR]").toString();
+      GetDocumentResponse response = documentServiceClient.getDocument(dataset);
+    }
+  }
+}
+// [END documentai_v1beta3_generated_DocumentService_GetDocument_String_sync]
diff --git a/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta3/documentservice/importdocuments/AsyncImportDocuments.java b/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta3/documentservice/importdocuments/AsyncImportDocuments.java
new file mode 100644
index 000000000000..a56966ce626b
--- /dev/null
+++ b/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta3/documentservice/importdocuments/AsyncImportDocuments.java
@@ -0,0 +1,53 @@
+/*
+ * Copyright 2023 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.documentai.v1beta3.samples;
+
+// [START documentai_v1beta3_generated_DocumentService_ImportDocuments_async]
+import com.google.api.core.ApiFuture;
+import com.google.cloud.documentai.v1beta3.DatasetName;
+import com.google.cloud.documentai.v1beta3.DocumentServiceClient;
+import com.google.cloud.documentai.v1beta3.ImportDocumentsRequest;
+import com.google.longrunning.Operation;
+import java.util.ArrayList;
+
+public class AsyncImportDocuments {
+
+  public static void main(String[] args) throws Exception {
+    asyncImportDocuments();
+  }
+
+  public static void asyncImportDocuments() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (DocumentServiceClient documentServiceClient = DocumentServiceClient.create()) {
+      ImportDocumentsRequest request =
+          ImportDocumentsRequest.newBuilder()
+              .setDataset(DatasetName.of("[PROJECT]", "[LOCATION]", "[PROCESSOR]").toString())
+              .addAllBatchDocumentsImportConfigs(
+                  new ArrayList())
+              .build();
+      ApiFuture future =
+          documentServiceClient.importDocumentsCallable().futureCall(request);
+      // Do something.
+      Operation response = future.get();
+    }
+  }
+}
+// [END documentai_v1beta3_generated_DocumentService_ImportDocuments_async]
diff --git a/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta3/documentservice/importdocuments/AsyncImportDocumentsLRO.java b/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta3/documentservice/importdocuments/AsyncImportDocumentsLRO.java
new file mode 100644
index 000000000000..56ca60ccec71
--- /dev/null
+++ b/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta3/documentservice/importdocuments/AsyncImportDocumentsLRO.java
@@ -0,0 +1,54 @@
+/*
+ * Copyright 2023 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.documentai.v1beta3.samples;
+
+// [START documentai_v1beta3_generated_DocumentService_ImportDocuments_LRO_async]
+import com.google.api.gax.longrunning.OperationFuture;
+import com.google.cloud.documentai.v1beta3.DatasetName;
+import com.google.cloud.documentai.v1beta3.DocumentServiceClient;
+import com.google.cloud.documentai.v1beta3.ImportDocumentsMetadata;
+import com.google.cloud.documentai.v1beta3.ImportDocumentsRequest;
+import com.google.cloud.documentai.v1beta3.ImportDocumentsResponse;
+import java.util.ArrayList;
+
+public class AsyncImportDocumentsLRO {
+
+  public static void main(String[] args) throws Exception {
+    asyncImportDocumentsLRO();
+  }
+
+  public static void asyncImportDocumentsLRO() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (DocumentServiceClient documentServiceClient = DocumentServiceClient.create()) {
+      ImportDocumentsRequest request =
+          ImportDocumentsRequest.newBuilder()
+              .setDataset(DatasetName.of("[PROJECT]", "[LOCATION]", "[PROCESSOR]").toString())
+              .addAllBatchDocumentsImportConfigs(
+                  new ArrayList())
+              .build();
+      OperationFuture future =
+          documentServiceClient.importDocumentsOperationCallable().futureCall(request);
+      // Do something.
+      ImportDocumentsResponse response = future.get();
+    }
+  }
+}
+// [END documentai_v1beta3_generated_DocumentService_ImportDocuments_LRO_async]
diff --git a/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta3/documentservice/importdocuments/SyncImportDocuments.java b/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta3/documentservice/importdocuments/SyncImportDocuments.java
new file mode 100644
index 000000000000..15e72aad770d
--- /dev/null
+++ b/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta3/documentservice/importdocuments/SyncImportDocuments.java
@@ -0,0 +1,49 @@
+/*
+ * Copyright 2023 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.documentai.v1beta3.samples;
+
+// [START documentai_v1beta3_generated_DocumentService_ImportDocuments_sync]
+import com.google.cloud.documentai.v1beta3.DatasetName;
+import com.google.cloud.documentai.v1beta3.DocumentServiceClient;
+import com.google.cloud.documentai.v1beta3.ImportDocumentsRequest;
+import com.google.cloud.documentai.v1beta3.ImportDocumentsResponse;
+import java.util.ArrayList;
+
+public class SyncImportDocuments {
+
+  public static void main(String[] args) throws Exception {
+    syncImportDocuments();
+  }
+
+  public static void syncImportDocuments() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (DocumentServiceClient documentServiceClient = DocumentServiceClient.create()) {
+      ImportDocumentsRequest request =
+          ImportDocumentsRequest.newBuilder()
+              .setDataset(DatasetName.of("[PROJECT]", "[LOCATION]", "[PROCESSOR]").toString())
+              .addAllBatchDocumentsImportConfigs(
+                  new ArrayList())
+              .build();
+      ImportDocumentsResponse response = documentServiceClient.importDocumentsAsync(request).get();
+    }
+  }
+}
+// [END documentai_v1beta3_generated_DocumentService_ImportDocuments_sync]
diff --git a/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta3/documentservice/importdocuments/SyncImportDocumentsDatasetname.java b/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta3/documentservice/importdocuments/SyncImportDocumentsDatasetname.java
new file mode 100644
index 000000000000..3f7e6c46b93b
--- /dev/null
+++ b/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta3/documentservice/importdocuments/SyncImportDocumentsDatasetname.java
@@ -0,0 +1,42 @@
+/*
+ * Copyright 2023 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.documentai.v1beta3.samples;
+
+// [START documentai_v1beta3_generated_DocumentService_ImportDocuments_Datasetname_sync]
+import com.google.cloud.documentai.v1beta3.DatasetName;
+import com.google.cloud.documentai.v1beta3.DocumentServiceClient;
+import com.google.cloud.documentai.v1beta3.ImportDocumentsResponse;
+
+public class SyncImportDocumentsDatasetname {
+
+  public static void main(String[] args) throws Exception {
+    syncImportDocumentsDatasetname();
+  }
+
+  public static void syncImportDocumentsDatasetname() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (DocumentServiceClient documentServiceClient = DocumentServiceClient.create()) {
+      DatasetName dataset = DatasetName.of("[PROJECT]", "[LOCATION]", "[PROCESSOR]");
+      ImportDocumentsResponse response = documentServiceClient.importDocumentsAsync(dataset).get();
+    }
+  }
+}
+// [END documentai_v1beta3_generated_DocumentService_ImportDocuments_Datasetname_sync]
diff --git a/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta3/documentservice/importdocuments/SyncImportDocumentsString.java b/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta3/documentservice/importdocuments/SyncImportDocumentsString.java
new file mode 100644
index 000000000000..454fc291c5b3
--- /dev/null
+++ b/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta3/documentservice/importdocuments/SyncImportDocumentsString.java
@@ -0,0 +1,42 @@
+/*
+ * Copyright 2023 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.cloud.documentai.v1beta3.samples;
+
+// [START documentai_v1beta3_generated_DocumentService_ImportDocuments_String_sync]
+import com.google.cloud.documentai.v1beta3.DatasetName;
+import com.google.cloud.documentai.v1beta3.DocumentServiceClient;
+import com.google.cloud.documentai.v1beta3.ImportDocumentsResponse;
+
+public class SyncImportDocumentsString {
+
+  public static void main(String[] args) throws Exception {
+    syncImportDocumentsString();
+  }
+
+  public static void syncImportDocumentsString() throws Exception {
+    // This snippet has been automatically generated and should be regarded as a code template only.
+    // It will require modifications to work:
+    // - It may require correct/in-range values for request initialization.
+    // - It may require specifying regional endpoints when creating the service client as shown in
+    // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
+    try (DocumentServiceClient documentServiceClient = DocumentServiceClient.create()) {
+      String dataset = DatasetName.of("[PROJECT]", "[LOCATION]", "[PROCESSOR]").toString();
+      ImportDocumentsResponse response = documentServiceClient.importDocumentsAsync(dataset).get();
+    }
+  }
+}
+// [END documentai_v1beta3_generated_DocumentService_ImportDocuments_String_sync]
diff --git a/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta3/documentservicesettings/getdatasetschema/SyncGetDatasetSchema.java b/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta3/documentservicesettings/getdocument/SyncGetDocument.java
similarity index 87%
rename from java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta3/documentservicesettings/getdatasetschema/SyncGetDatasetSchema.java
rename to java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta3/documentservicesettings/getdocument/SyncGetDocument.java
index 753dc01b7b54..780ff329cd75 100644
--- a/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta3/documentservicesettings/getdatasetschema/SyncGetDatasetSchema.java
+++ b/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta3/documentservicesettings/getdocument/SyncGetDocument.java
@@ -16,17 +16,17 @@
 
 package com.google.cloud.documentai.v1beta3.samples;
 
-// [START documentai_v1beta3_generated_DocumentServiceSettings_GetDatasetSchema_sync]
+// [START documentai_v1beta3_generated_DocumentServiceSettings_GetDocument_sync]
 import com.google.cloud.documentai.v1beta3.DocumentServiceSettings;
 import java.time.Duration;
 
-public class SyncGetDatasetSchema {
+public class SyncGetDocument {
 
   public static void main(String[] args) throws Exception {
-    syncGetDatasetSchema();
+    syncGetDocument();
   }
 
-  public static void syncGetDatasetSchema() throws Exception {
+  public static void syncGetDocument() throws Exception {
     // This snippet has been automatically generated and should be regarded as a code template only.
     // It will require modifications to work:
     // - It may require correct/in-range values for request initialization.
@@ -35,10 +35,10 @@ public static void syncGetDatasetSchema() throws Exception {
     DocumentServiceSettings.Builder documentServiceSettingsBuilder =
         DocumentServiceSettings.newBuilder();
     documentServiceSettingsBuilder
-        .getDatasetSchemaSettings()
+        .getDocumentSettings()
         .setRetrySettings(
             documentServiceSettingsBuilder
-                .getDatasetSchemaSettings()
+                .getDocumentSettings()
                 .getRetrySettings()
                 .toBuilder()
                 .setTotalTimeout(Duration.ofSeconds(30))
@@ -46,4 +46,4 @@ public static void syncGetDatasetSchema() throws Exception {
     DocumentServiceSettings documentServiceSettings = documentServiceSettingsBuilder.build();
   }
 }
-// [END documentai_v1beta3_generated_DocumentServiceSettings_GetDatasetSchema_sync]
+// [END documentai_v1beta3_generated_DocumentServiceSettings_GetDocument_sync]
diff --git a/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta3/stub/documentservicestubsettings/getdatasetschema/SyncGetDatasetSchema.java b/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta3/stub/documentservicestubsettings/getdocument/SyncGetDocument.java
similarity index 87%
rename from java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta3/stub/documentservicestubsettings/getdatasetschema/SyncGetDatasetSchema.java
rename to java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta3/stub/documentservicestubsettings/getdocument/SyncGetDocument.java
index 51bddd9cf383..400e4be2b38a 100644
--- a/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta3/stub/documentservicestubsettings/getdatasetschema/SyncGetDatasetSchema.java
+++ b/java-document-ai/samples/snippets/generated/com/google/cloud/documentai/v1beta3/stub/documentservicestubsettings/getdocument/SyncGetDocument.java
@@ -16,17 +16,17 @@
 
 package com.google.cloud.documentai.v1beta3.stub.samples;
 
-// [START documentai_v1beta3_generated_DocumentServiceStubSettings_GetDatasetSchema_sync]
+// [START documentai_v1beta3_generated_DocumentServiceStubSettings_GetDocument_sync]
 import com.google.cloud.documentai.v1beta3.stub.DocumentServiceStubSettings;
 import java.time.Duration;
 
-public class SyncGetDatasetSchema {
+public class SyncGetDocument {
 
   public static void main(String[] args) throws Exception {
-    syncGetDatasetSchema();
+    syncGetDocument();
   }
 
-  public static void syncGetDatasetSchema() throws Exception {
+  public static void syncGetDocument() throws Exception {
     // This snippet has been automatically generated and should be regarded as a code template only.
     // It will require modifications to work:
     // - It may require correct/in-range values for request initialization.
@@ -35,10 +35,10 @@ public static void syncGetDatasetSchema() throws Exception {
     DocumentServiceStubSettings.Builder documentServiceSettingsBuilder =
         DocumentServiceStubSettings.newBuilder();
     documentServiceSettingsBuilder
-        .getDatasetSchemaSettings()
+        .getDocumentSettings()
         .setRetrySettings(
             documentServiceSettingsBuilder
-                .getDatasetSchemaSettings()
+                .getDocumentSettings()
                 .getRetrySettings()
                 .toBuilder()
                 .setTotalTimeout(Duration.ofSeconds(30))
@@ -46,4 +46,4 @@ public static void syncGetDatasetSchema() throws Exception {
     DocumentServiceStubSettings documentServiceSettings = documentServiceSettingsBuilder.build();
   }
 }
-// [END documentai_v1beta3_generated_DocumentServiceStubSettings_GetDatasetSchema_sync]
+// [END documentai_v1beta3_generated_DocumentServiceStubSettings_GetDocument_sync]