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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 mute_modmail_author(self, _unmute=False):
 """Mute the sender of this modmail message. :param _unmute: Unmute the user instead. Please use :meth:`unmute_modmail_author` instead of setting this directly. """

        path = 'unmute_sender' if _unmute else 'mute_sender'
        return self.reddit_session.request_json(
            self.reddit_session.config[path], data={'id': self.fullname})