class UnexpectedOutputPrinter

final class UnexpectedOutputPrinter implements PrintedUnexpectedOutputSubscriber {
    private readonly Printer $printer;
    
    /**
     * @throws EventFacadeIsSealedException
     * @throws UnknownSubscriberTypeException
     */
    public function __construct(Printer $printer, Facade $facade) {
        $this->printer = $printer;
        $facade->registerSubscriber($this);
    }
    public function notify(PrintedUnexpectedOutput $event) : void {
        $this->printer
            ->print($event->output());
    }

}