code: def register_for_reply_by_message_id(self, message_id, callback, *args, **kwargs):
          
          if message_id in self.reply_handlers.keys():
              self.reply_handlers[message_id].append(Handler(callback, *args, **kwargs))
          else:
              self.reply_handlers[message_id] = [Handler(callback, *args, **kwargs)]
          if self.reply_saver is not None:
              self.reply_saver.start_save_timer()
docs: Registers a callback function to be notified when a reply to `message` arrives.
  
          Warning: In case `callback` as lambda function, saving reply handlers will not work.
  
          :param message_id:  The id of the message for which we are awaiting a reply.
          :param callback:    The callback function to be called when a reply arrives. Must accept one `message`
                              parameter, which will contain the replied message.