Tolerance\Bridge\Guzzle\Tracer\TracerSubscriber::onError PHP Метод

public onError ( GuzzleHttp\Event\ErrorEvent $event )
$event	GuzzleHttp\Event\ErrorEvent

    public function onError(ErrorEvent $event)
    {
        $this->onEnd($event->getRequest(), $event->getResponse());
    }

TracerSubscriber