code: def typing(self, *, channel: str):
          
          payload = {"id": self._next_msg_id(), "type": "typing", "channel": channel}
          self.send_over_websocket(payload=payload)
docs: Sends a typing indicator to the specified channel.
  
          This indicates that this app is currently
          writing a message to send to a channel.
  
          Args:
              channel (str): The channel id. e.g. 'C024BE91L'
  
          Raises:
              SlackClientNotConnectedError: Websocket connection is closed.