public function __call($name, $arguments)
 {
     $find = false;
     foreach ($this->extends as $extend) {
         if (method_exists($extend, $name)) {
             $find = true;
             return call_user_func_array(array($extend, $name), $arguments);
         }
     }
     if ($find === false) {
         return parent::__callStatic($name, $arguments);
         throw new BadMethodCallException("Method " . $name . " not found in " . __CLASS__);
     }
 }