docs: update OPTIONAL annotations for some fields.

Google APIs · copybara-github · commit 470d84e263c8 · 2020-09-22T12:14:53.000-07:00
PiperOrigin-RevId: 333132625
diff --git a/google/cloud/dialogflow/v2beta1/knowledge_base.proto b/google/cloud/dialogflow/v2beta1/knowledge_base.proto
@@ -156,12 +156,12 @@ message ListKnowledgeBasesRequest {
     }
   ];
 
-  // Optional. The maximum number of items to return in a single page. By
+  // The maximum number of items to return in a single page. By
   // default 10 and at most 100.
-  int32 page_size = 2 [(google.api.field_behavior) = OPTIONAL];
+  int32 page_size = 2;
 
-  // Optional. The next_page_token value returned from a previous list request.
-  string page_token = 3 [(google.api.field_behavior) = OPTIONAL];
+  // The next_page_token value returned from a previous list request.
+  string page_token = 3;
 }
 
 // Response message for [KnowledgeBases.ListKnowledgeBases][google.cloud.dialogflow.v2beta1.KnowledgeBases.ListKnowledgeBases].
@@ -214,7 +214,7 @@ message DeleteKnowledgeBaseRequest {
 
   // Optional. Force deletes the knowledge base. When set to true, any documents
   // in the knowledge base are also deleted.
-  bool force = 2;
+  bool force = 2 [(google.api.field_behavior) = OPTIONAL];
 }
 
 // Request message for [KnowledgeBases.UpdateKnowledgeBase][google.cloud.dialogflow.v2beta1.KnowledgeBases.UpdateKnowledgeBase].
diff --git a/google/cloud/dialogflow/v2beta1/session.proto b/google/cloud/dialogflow/v2beta1/session.proto
@@ -23,6 +23,7 @@ import "google/api/resource.proto";
 import "google/cloud/dialogflow/v2beta1/agent.proto";
 import "google/cloud/dialogflow/v2beta1/audio_config.proto";
 import "google/cloud/dialogflow/v2beta1/context.proto";
+import "google/cloud/dialogflow/v2beta1/gcs.proto";
 import "google/cloud/dialogflow/v2beta1/intent.proto";
 import "google/cloud/dialogflow/v2beta1/session_entity_type.proto";
 import "google/protobuf/duration.proto";
