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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 set_muted(self, status):
 """Set group mute status."""

        self._group['muted'] = status
        yield from self._server.group_mute(self.identifier, status)
        _LOGGER.info('set muted to %s on %s', status, self.friendly_name)