def __response_message_descriptor(self, message_type, method_id):
descriptor = {}<EOL>self.__parser.add_message(message_type.__class__)<EOL>if message_type == message_types.VoidMessage():<EOL><INDENT>descriptor['<STR_LIT:body>'] = '<STR_LIT>'<EOL><DEDENT>else:<EOL><INDENT>descriptor['<STR_LIT:body>'] = '<STR_LIT>'<EOL>descriptor['<STR_LIT>'] = '<STR_LIT>'<EOL>self.__response_schema[method_id] = self.__parser.ref_for_message_type(<EOL>message_type.__class__)<EOL><DEDENT>return descriptor<EOL>
Describes the response.

        Args:
          message_type: messages.Message class, The message to describe.
          method_id: string, Unique method identifier (e.g. 'myapi.items.method')

        Returns:
          Dictionary describing the response.