Не находит метод dontBroadcastToCurrentUser, почему?

namespace App\Events;

use Illuminate\Broadcasting\Channel;
use Illuminate\Queue\SerializesModels;
use Illuminate\Broadcasting\PrivateChannel;
use Illuminate\Broadcasting\PresenceChannel;
use Illuminate\Foundation\Events\Dispatchable;
use Illuminate\Broadcasting\InteractsWithSockets;
use Illuminate\Contracts\Broadcasting\ShouldBroadcast;

class NewCommentAdded implements ShouldBroadcast
{
    use SerializesModels;

    public $comment;

    public function __construct($data)
    {
        $this->comment = $data;

        $this->dontBroadcastToCurrentUser();
    }

    public function broadcastOn()
    {
        return new Channel('comment');
    }
}