public function getSecdns($row = null)
{
if (!is_null($row)) {
if (isset($this->secdns[$row])) {
return $this->secdns[$row];
} else {
throw new eppException("DNSSEC info number {$row} could not be retrieved");
}
} else {
// return the whole array
return $this->secdns;
}
}