group-8.x-1.x-dev/tests/modules/group_test_plugin_alter/src/Plugin/Group/RelationHandler/BazAdminPermissionProvider.php

<?php

namespace Drupal\group_test_plugin_alter\Plugin\Group\RelationHandler;

use Drupal\group\Plugin\Group\RelationHandler\PermissionProviderInterface;
use Drupal\group\Plugin\Group\RelationHandler\PermissionProviderTrait;

/**
 * Alters admin permission for a specific plugin to original + 'baz'.
 */
class BazAdminPermissionProvider implements PermissionProviderInterface {

  use PermissionProviderTrait;

  /**
   * Constructs a new BazAdminPermissionProvider.
   *
   * @param \Drupal\group\Plugin\Group\RelationHandler\PermissionProviderInterface $parent
   *   The parent permission provider.
   */
  public function __construct(PermissionProviderInterface $parent) {
    $this->parent = $parent;
  }

  /**
   * {@inheritdoc}
   */
  public function getAdminPermission() {
    return $this->parent->getAdminPermission() . 'baz';
  }

}