public function __set($name, $value)
 {
     if ($value instanceof Ezer_Step) {
         $this->add($value);
     } else {
         parent::__set($name, $value);
     }
 }
 public function __set($name, $value)
 {
     if ($name == 'args' && !$value instanceof Ezer_Array) {
         $arr = new Ezer_Array();
         $arr->add($value);
         $value = $arr;
     }
     parent::__set($name, $value);
 }