onlyone-8.x-1.x-dev/modules/onlyone_admin_toolbar/src/OnlyOneAdminToolbarInterface.php

<?php

namespace Drupal\onlyone_admin_toolbar;

/**
 * Defines the OnlyOneAdminToolbarInterface interface.
 *
 * Provides a contract for classes implementing functionality related to
 * rebuilding menu in the Admin Toolbar module base on configured content types.
 */
interface OnlyOneAdminToolbarInterface {

  /**
   * Rebuild the menu to change the menu label in the Admin Toolbar module.
   *
   * The menu will be rebuilded if the content type is configured to have only
   * one node.
   *
   * @param string $content_type
   *   The content type machine name.
   */
  public function rebuildMenu($content_type);

}