/**
  * @param ItemInterface $parent
  * @param array         $routes
  * @param string|null   $basePath
  */
 public static function addHiddenItems($parent, $routes, $basePath = null)
 {
     $parent->setDisplayChildren(false);
     if (null === $basePath && null !== $parent->getExtra('routes') && isset($parent->getExtra('routes')[0]['route'])) {
         $basePathArray = explode("_", $parent->getExtra('routes')[0]['route']);
         $basePathArray[count($basePathArray) - 1] = '%s';
         $basePath = implode("_", $basePathArray);
     }
     foreach ($routes as $routeIndex => $routeParameters) {
         $route = sprintf($basePath, $routeIndex);
         $parent->addChild($route, ['route' => $route, 'routeParameters' => $routeParameters]);
     }
 }