Metaregistrar\EPP\eppInfoContactResponse::getContactCountrycode PHP Method

    public function getContactCountrycode()
    {
        $pi = $this->getContactPostalInfo();
        $postalInfo = $pi[0];
        if ($postalInfo instanceof eppContactPostalInfo) {
            return $postalInfo->getCountrycode();
        } else {
            return null;
        }
    }