/**
  * @return Gpf_Rpc_Form
  */
 protected function createResponseForm()
 {
     $form = parent::createResponseForm();
     $form->setField('correspondsApi', Gpf::YES);
     if (!$this->corresponsApiVersion()) {
         $form->setField('correspondsApi', Gpf::NO);
     }
     return $form;
 }