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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _on_notification(self, name, args):
 """Handle a msgpack-rpc notification."""

        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)