Compatible with the 2023-07-01-preview API interface of Azure Openai,…

… when content interception is triggered, the error message will contain innererror.InnerError struct is only valid for Azure OpenAI Service.

error.go

@@ -7,6 +7,7 @@ import (
 )
 
 // APIError provides error information returned by the OpenAI API.
+// InnerError struct is only valid for Azure OpenAI Service.
 type APIError struct {
 	Code           any        `json:"code,omitempty"`
 	Message        string     `json:"message"`
@@ -16,7 +17,7 @@ type APIError struct {
 	InnerError     InnerError `json:"innererror,omitempty"`
 }
 
-// InnerError Azure Content filtering.
+// InnerError Azure Content filtering. Only valid for Azure OpenAI Service.
 type InnerError struct {
 	Code                 string               `json:"code,omitempty"`
 	ContentFilterResults ContentFilterResults `json:"content_filter_result,omitempty"`

error_test.go

@@ -58,13 +58,21 @@ func TestAPIErrorUnmarshalJSON(t *testing.T) {
 			},
 		},
 		{
-			name:     "parse succeeds when the innerError is exists (Azure Openai)",
+			name:     "parse succeeds when the innerError is not exists (Azure Openai)",
 			response: `{"message": "","type": null,"param": "","code": "","status": 0,"innererror": {}}`,
 			hasError: false,
 			checkFunc: func(t *testing.T, apiErr APIError) {
 				assertAPIErrorInnerError(t, apiErr, InnerError{})
 			},
 		},
+		{
+			name:     "parse succeeds when the innerError is not InnerError struct (Azure Openai)",
+			response: `{"message": "","type": null,"param": "","code": "","status": 0,"innererror": "test"}`,
+			hasError: true,
+			checkFunc: func(t *testing.T, apiErr APIError) {
+				assertAPIErrorInnerError(t, apiErr, InnerError{})
+			},
+		},
 		{
 			name:     "parse failed when the message is object",
 			response: `{"message":{},"type":"invalid_request_error","param":null,"code":null}`,