Sync the device to the cluster group

        :param device: bigip object -- device to sync to group

def _sync_to_group(self, device):
        '''Sync the device to the cluster group

        :param device: bigip object -- device to sync to group
        '''

        config_sync_cmd = 'config-sync to-group %s' % self.name
        device.tm.cm.exec_cmd('run', utilCmdArgs=config_sync_cmd)