docs: def handle_message(self, connection, sender, target, message):
          """
          Handles a received message
          """
          parts = message.strip().split(' ', 2)
          if parts and parts[0].lower() == '!bot':
              try:
                  command = parts[1].lower()
              except IndexError:
                  self.safe_send(connection, target, "No command given")
                  return
  
              try:
                  payload = parts[2]
              except IndexError:
                  payload = ""
  
              self.__pool.enqueue(self._handle_command,
                                  connection, sender, target, command, payload)