public function can_stop_mix_monitor()
{
$write = array(implode("\r\n", array('action: StopMixMonitor', 'actionid: 1432.123', 'channel: channel', 'mixmonitorid: mix_monitor', '')));
$action = new \PAMI\Message\Action\StopMixMonitorAction('channel');
$action->setMixMonitorId('mix_monitor');
$client = $this->_start($write, $action);
}