Papi_Loader::instance PHP Method

    public static function instance()
    {
        if (!isset(self::$instance)) {
            self::$instance = new self();
        }
        return self::$instance;
    }

 /**
  * Papi loader instance.
  *
  * @return Papi_Loader
  */
 public static function instance()
 {
     if (!isset(self::$instance)) {
         self::$instance = new self();
     }
     return self::$instance;
 }