code: def send_request(self, msg):
          
          assert(msg.mtype == Message.REQUEST)
          if msg.mid and not self._server_supports_ids:
              raise KatcpVersionError('Message IDs not supported by server')
          self.send_message(msg)
docs: Send a request messsage.
  
          Parameters
          ----------
          msg : Message object
              The request Message to send.