/**
  * @return AnnotationBulkUploadXmlHandler
  */
 public static function get()
 {
     if (!self::$instance) {
         self::$instance = new AnnotationBulkUploadXmlHandler();
     }
     return self::$instance;
 }
 public function getInstance($interface)
 {
     if ($this instanceof $interface) {
         return $this;
     }
     if ($interface == 'IKalturaBulkUploadXmlHandler') {
         return AnnotationBulkUploadXmlHandler::get();
     }
     return null;
 }