Inheritance: extends Illuminate\Support\Facades\Facade
 /**
  * Broadcast the given event.
  *
  * @param  array  $channels
  * @param  string  $event
  * @param  array  $payload
  * @return void
  */
 public function broadcast(array $channels, $event, array $payload = [])
 {
     $socket = Arr::pull($payload, 'socket');
     $payload = ['event' => $event, 'data' => $payload, 'socket' => $socket];
     foreach ($this->formatChannels($channels) as $channel) {
         LaravooleFacade::task(['channel' => $channel, 'payload' => $payload]);
     }
 }