LaravelFCM\Message\PayloadNotificationBuilder::setSound PHP Method

Supports default or the filename of a sound resource bundled in the app.

public setSound ( String $sound ) : PayloadNotificationBuilder
$sound	String
return	PayloadNotificationBuilder	current instance of the builder

    public function setSound($sound)
    {
        $this->sound = $sound;
        return $this;
    }

PayloadNotificationBuilder