code: def send(self, context, message, **kwargs):
          
          context = context.copy()
          context['message'] = message
          context.update(kwargs)
          if 'message_type' not in context:
              if 'group_id' in context:
                  context['message_type'] = 'group'
              elif 'discuss_id' in context:
                  context['message_type'] = 'discuss'
              elif 'user_id' in context:
                  context['message_type'] = 'private'
          return super().__getattr__('send_msg')(**context)
docs: 便捷回复。会根据传入的context自动判断回复对象
          ------------
          :param dict context: 事件收到的content
          :return: None
          :rtype: None
          ------------