@asyncio.coroutine<EOL><INDENT>def set_volume(self, volume):<DEDENT>
for data in self._group.get('<STR_LIT>'):<EOL><INDENT>client = self._server.client(data.get('<STR_LIT:id>'))<EOL>yield from client.set_volume(volume, update_group=False)<EOL>client.update_volume({<EOL>'<STR_LIT>': {<EOL>'<STR_LIT>': volume,<EOL>'<STR_LIT>': client.muted<EOL>}<EOL>})<EOL><DEDENT>_LOGGER.info('<STR_LIT>', volume, self.friendly_name)<EOL>
Set volume.