feat: Add data_sharing_enabled_provider field (ModelProvider enum) to PublisherModelConfig

packages/google-cloud-aiplatform/protos/google/cloud/aiplatform/v1beta1/endpoint.proto

@@ -400,8 +400,24 @@ message PredictRequestResponseLoggingConfig {
 
 // This message contains configs of a publisher model.
 message PublisherModelConfig {
+  // A model provider (publisher) that prediction data may be shared with.
+  enum ModelProvider {
+    // Unspecified model provider.
+    MODEL_PROVIDER_UNSPECIFIED = 0;
+
+    // Anthropic.
+    ANTHROPIC = 1;
+  }
+
   // The prediction request/response logging config.
   PredictRequestResponseLoggingConfig logging_config = 3;
+
+  // Optional. The model provider (publisher) for which the customer has enabled
+  // data sharing. For publisher models that are configured to require data
+  // sharing, a prediction request is only allowed when the model's publisher
+  // matches this provider. Otherwise, the request is rejected.
+  ModelProvider data_sharing_enabled_provider = 4
+      [(google.api.field_behavior) = OPTIONAL];
 }
 
 // Configurations (e.g. inference timeout) that are applied on your endpoints.