public function setEppRequestExtension(eppRequest $request, \DOMElement $extension)
{
$request->addExtension('xmlns:xsi', atEppConstants::w3SchemaLocation);
$contactExt_ = $request->createElement('at-ext-contact:update');
$contactExt_->setAttribute('xmlns:at-ext-contact', atEppConstants::namespaceAtExtContact);
$contactExt_->setAttribute('xsi:schemaLocation', atEppConstants::schemaLocationAtExtContact);
$extChange_ = $request->createElement('at-ext-contact:chg');
$facet_ = $request->createElement('at-ext-contact:type');
$facet_->appendChild(new \DOMText($this->atEppContact->getPersonType()));
$extChange_->appendChild($facet_);
$contactExt_->appendChild($extChange_);
$extension->appendchild($contactExt_);
if (!is_null($this->additionaEppExtension)) {
$this->additionaEppExtension->setEppRequestExtension($request, $extension);
}
}