code: public com.google.appengine.v1.ApiEndpointHandler getApiEndpoint() {
      if (handlerTypeCase_ == 4) {
         return (com.google.appengine.v1.ApiEndpointHandler) handlerType_;
      }
      return com.google.appengine.v1.ApiEndpointHandler.getDefaultInstance();
    }
docs: <pre>
  Uses API Endpoints to handle requests.
  </pre>
  
  <code>.google.appengine.v1.ApiEndpointHandler api_endpoint = 4;</code>