code: async def send_message(self, *args, **kwargs):
          
          message = await self._client.send_message(
              self._input_chat, *args, **kwargs)
  
          self._outgoing.add(message.id)
          self._last_outgoing = message.id
          return message
docs: Sends a message in the context of this conversation. Shorthand
          for `telethon.client.messages.MessageMethods.send_message` with
          ``entity`` already set.