public function setNameservers($domainName, $nameservers)
    {
        foreach ($nameservers as $nameserver) {
            if (!$nameserver instanceof \Transip\Model\Nameserver) {
                throw new \RuntimeException(sprintf('nameserver is not an instance of %s', '\\Transip\\Model\\Nameserver'));
            }
        }

        return $this->getSoapClient(array_merge(array($domainName, $nameservers), array('__method' => 'setNameservers')))->setNameservers($domainName, $nameservers);
    }