Nette\Http\IResponse::setExpiration PHP Метод

    function setExpiration($seconds);

 /**
  * {inheritDoc}
  */
 public function send(Nette\Http\IRequest $httpRequest, Nette\Http\IResponse $httpResponse)
 {
     $httpResponse->setContentType($this->getContentType(), 'utf-8');
     $httpResponse->setExpiration(FALSE);
     $httpResponse->setCode($this->code);
     echo Nette\Utils\Json::encode($this->getPayload(), Nette\Utils\Json::PRETTY);
 }