public function routes() {
    $collection = new RouteCollection();

    if ($this->moduleHandler->moduleExists('views_bulk_operations')) {
      $route = new Route(
        '/node/{node}/all-enrollments/configure-action',
        [
          '_form' => '\Drupal\social_event_managers\Form\SocialEventManagementViewsBulkOperationsConfigureAction',
          '_title' => 'Configure action',
          'view_id' => 'event_manage_enrollments',
          'display_id' => 'page_manage_enrollments',
        ],
        [
          '_views_bulk_operation_access' => 'TRUE',
        ]
      );
      $collection->add('social_event_managers.vbo.execute_configurable', $route);

      $route = new Route(
        '/node/{node}/all-enrollments/confirm-action',
        [
          '_form' => '\Drupal\social_event_managers\Form\SocialEventManagersViewsBulkOperationsConfirmAction',
          '_title' => 'Confirm action',
          'view_id' => 'event_manage_enrollments',
          'display_id' => 'page_manage_enrollments',
        ],
        [
          '_views_bulk_operation_access' => 'TRUE',
        ]
      );
      $collection->add('social_event_managers.vbo.confirm', $route);
    }

    return $collection;
  }