code: async def set_conversation_notification_level(
              self, set_conversation_notification_level_request
      ):
          
          response = hangouts_pb2.SetConversationNotificationLevelResponse()
          await self._pb_request(
              'conversations/setconversationnotificationlevel',
              set_conversation_notification_level_request, response
          )
          return response
docs: Set the notification level of a conversation.