Model::set PHP Method

    public function set($property, $value = null)
    {
        $this->orm->set($property, $value);
        return $this;
    }

 /**
  * @param Model $model
  **/
 public function addParamsToModel(Model $model)
 {
     if ($this->version == '1.1') {
         $model->set('openid.ns.sreg', self::NAMESPACE_1_1);
     }
     $model->set('openid.sreg.optional', implode(',', $this->params));
 }