code: def _on_notification(self, name, args):
          
          if IS_PYTHON3:
              name = decode_if_bytes(name)
          handler = self._notification_handlers.get(name, None)
          if not handler:
              msg = self._missing_handler_error(name, 'notification')
              error(msg)
              self._on_async_err(msg + "\n")
              return
  
          debug('calling notification handler for "%s", args: "%s"', name, args)
          handler(*args)
docs: Handle a msgpack-rpc notification.