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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 reply(self, body):
 """ Reply to this message. This is a convenience method calling User.send_message. See it for more information on usage. Note that both recipient and reply_to are given by using this convenience method. :param body: The body of the message. """

        return self.author.send_message(body=body, reply_to=self.id)