code: def send_chat_action(self, action, to):
          
          payload = dict(chat_id=to, action=action)
          return self._get('sendChatAction', payload)
docs: Use this method when you need to tell the user that something is happening on the bot's side.
              The status is set for 5 seconds or less (when a message arrives from your bot,
              Telegram clients clear its typing status).