diff --git a/packages/google-cloud-monitoring-dashboards/google/cloud/monitoring_dashboard_v1/services/dashboards_service/transports/__init__.py b/packages/google-cloud-monitoring-dashboards/google/cloud/monitoring_dashboard_v1/services/dashboards_service/transports/__init__.py
index 7057d4455488..0d306cdedd7e 100644
--- a/packages/google-cloud-monitoring-dashboards/google/cloud/monitoring_dashboard_v1/services/dashboards_service/transports/__init__.py
+++ b/packages/google-cloud-monitoring-dashboards/google/cloud/monitoring_dashboard_v1/services/dashboards_service/transports/__init__.py
@@ -28,7 +28,6 @@
 _transport_registry["grpc"] = DashboardsServiceGrpcTransport
 _transport_registry["grpc_asyncio"] = DashboardsServiceGrpcAsyncIOTransport
 
-
 __all__ = (
     "DashboardsServiceTransport",
     "DashboardsServiceGrpcTransport",
diff --git a/packages/google-cloud-monitoring-dashboards/google/cloud/monitoring_dashboard_v1/services/dashboards_service/transports/grpc.py b/packages/google-cloud-monitoring-dashboards/google/cloud/monitoring_dashboard_v1/services/dashboards_service/transports/grpc.py
index add83184eca9..f837aef6b313 100644
--- a/packages/google-cloud-monitoring-dashboards/google/cloud/monitoring_dashboard_v1/services/dashboards_service/transports/grpc.py
+++ b/packages/google-cloud-monitoring-dashboards/google/cloud/monitoring_dashboard_v1/services/dashboards_service/transports/grpc.py
@@ -149,6 +149,10 @@ def __init__(
                 ssl_credentials=ssl_credentials,
                 scopes=scopes or self.AUTH_SCOPES,
                 quota_project_id=quota_project_id,
+                options=[
+                    ("grpc.max_send_message_length", -1),
+                    ("grpc.max_receive_message_length", -1),
+                ],
             )
             self._ssl_channel_credentials = ssl_credentials
         else:
@@ -167,6 +171,10 @@ def __init__(
                 ssl_credentials=ssl_channel_credentials,
                 scopes=scopes or self.AUTH_SCOPES,
                 quota_project_id=quota_project_id,
+                options=[
+                    ("grpc.max_send_message_length", -1),
+                    ("grpc.max_receive_message_length", -1),
+                ],
             )
 
         self._stubs = {}  # type: Dict[str, Callable]
@@ -193,7 +201,7 @@ def create_channel(
     ) -> grpc.Channel:
         """Create and return a gRPC channel object.
         Args:
-            address (Optionsl[str]): The host for the channel to use.
+            address (Optional[str]): The host for the channel to use.
             credentials (Optional[~.Credentials]): The
                 authorization credentials to attach to requests. These
                 credentials identify this application to the service. If
diff --git a/packages/google-cloud-monitoring-dashboards/google/cloud/monitoring_dashboard_v1/services/dashboards_service/transports/grpc_asyncio.py b/packages/google-cloud-monitoring-dashboards/google/cloud/monitoring_dashboard_v1/services/dashboards_service/transports/grpc_asyncio.py
index cc0763f55f5f..65d2c06705dd 100644
--- a/packages/google-cloud-monitoring-dashboards/google/cloud/monitoring_dashboard_v1/services/dashboards_service/transports/grpc_asyncio.py
+++ b/packages/google-cloud-monitoring-dashboards/google/cloud/monitoring_dashboard_v1/services/dashboards_service/transports/grpc_asyncio.py
@@ -194,6 +194,10 @@ def __init__(
                 ssl_credentials=ssl_credentials,
                 scopes=scopes or self.AUTH_SCOPES,
                 quota_project_id=quota_project_id,
+                options=[
+                    ("grpc.max_send_message_length", -1),
+                    ("grpc.max_receive_message_length", -1),
+                ],
             )
             self._ssl_channel_credentials = ssl_credentials
         else:
@@ -212,6 +216,10 @@ def __init__(
                 ssl_credentials=ssl_channel_credentials,
                 scopes=scopes or self.AUTH_SCOPES,
                 quota_project_id=quota_project_id,
+                options=[
+                    ("grpc.max_send_message_length", -1),
+                    ("grpc.max_receive_message_length", -1),
+                ],
             )
 
         # Run the base constructor.
diff --git a/packages/google-cloud-monitoring-dashboards/google/cloud/monitoring_dashboard_v1/types/__init__.py b/packages/google-cloud-monitoring-dashboards/google/cloud/monitoring_dashboard_v1/types/__init__.py
index c963fe0bcb54..f537e805a7d2 100644
--- a/packages/google-cloud-monitoring-dashboards/google/cloud/monitoring_dashboard_v1/types/__init__.py
+++ b/packages/google-cloud-monitoring-dashboards/google/cloud/monitoring_dashboard_v1/types/__init__.py
@@ -25,6 +25,7 @@
     TimeSeriesFilter,
     TimeSeriesFilterRatio,
     Threshold,
+    SparkChartType,
 )
 from .scorecard import Scorecard
 from .text import Text
@@ -48,7 +49,6 @@
     UpdateDashboardRequest,
 )
 
-
 __all__ = (
     "Aggregation",
     "PickTimeSeriesFilter",
@@ -57,6 +57,7 @@
     "TimeSeriesFilter",
     "TimeSeriesFilterRatio",
     "Threshold",
+    "SparkChartType",
     "Scorecard",
     "Text",
     "XyChart",
diff --git a/packages/google-cloud-monitoring-dashboards/synth.metadata b/packages/google-cloud-monitoring-dashboards/synth.metadata
index 8aa425a013fb..434807d5b14f 100644
--- a/packages/google-cloud-monitoring-dashboards/synth.metadata
+++ b/packages/google-cloud-monitoring-dashboards/synth.metadata
@@ -4,15 +4,15 @@
       "git": {
         "name": ".",
         "remote": "https://github.com/googleapis/python-monitoring-dashboards.git",
-        "sha": "cb6a89f29579af6e03c34e9594d3d15d2439c716"
+        "sha": "8e00d80b19618d42e79833cff20e2f62c08fcede"
       }
     },
     {
       "git": {
         "name": "googleapis",
         "remote": "https://github.com/googleapis/googleapis.git",
-        "sha": "07d41a7e5cade45aba6f0d277c89722b48f2c956",
-        "internalRef": "339292950"
+        "sha": "dd372aa22ded7a8ba6f0e03a80e06358a3fa0907",
+        "internalRef": "347055288"
       }
     },
     {
diff --git a/packages/google-cloud-monitoring-dashboards/tests/unit/gapic/dashboard_v1/test_dashboards_service.py b/packages/google-cloud-monitoring-dashboards/tests/unit/gapic/dashboard_v1/test_dashboards_service.py
index 2a35c96492ac..bfa1bdabac7e 100644
--- a/packages/google-cloud-monitoring-dashboards/tests/unit/gapic/dashboard_v1/test_dashboards_service.py
+++ b/packages/google-cloud-monitoring-dashboards/tests/unit/gapic/dashboard_v1/test_dashboards_service.py
@@ -1549,6 +1549,10 @@ def test_dashboards_service_transport_channel_mtls_with_client_cert_source(
                 ),
                 ssl_credentials=mock_ssl_cred,
                 quota_project_id=None,
+                options=[
+                    ("grpc.max_send_message_length", -1),
+                    ("grpc.max_receive_message_length", -1),
+                ],
             )
             assert transport.grpc_channel == mock_grpc_channel
             assert transport._ssl_channel_credentials == mock_ssl_cred
@@ -1595,6 +1599,10 @@ def test_dashboards_service_transport_channel_mtls_with_adc(transport_class):
                 ),
                 ssl_credentials=mock_ssl_cred,
                 quota_project_id=None,
+                options=[
+                    ("grpc.max_send_message_length", -1),
+                    ("grpc.max_receive_message_length", -1),
+                ],
             )
             assert transport.grpc_channel == mock_grpc_channel