arch-8.x-1.x-dev/modules/product/src/Routing/RouteSubscriber.php

<?php

namespace Drupal\arch_product\Routing;

use Drupal\Core\Routing\RouteSubscriberBase;
use Symfony\Component\Routing\RouteCollection;

/**
 * Listens to the dynamic route events.
 */
class RouteSubscriber extends RouteSubscriberBase {

  /**
   * {@inheritdoc}
   */
  protected function alterRoutes(RouteCollection $collection) {
    // @todo drop this..
  }

}