public function init()
 {
     parent::init();
     if (empty($this->accountId)) {
         throw new PaymentException("accountId must be set in your saferpay transaction");
     }
 }
 public function init()
 {
     parent::init();
     if ($this->clientId === null || $this->clientSecret === null) {
         throw new PaymentException("the paypal clientId and clientSecret properite can not be null!");
     }
 }