<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def _dump(self):
 """ Dump message attributes. Returns: dict: A dictionary of message attributes. """

        return {
            "topic": self.topic,
            "headers": self._headers,
            "id": self.id,
            "body": self.body,
            "queue": self.queue,
        }