public function AddDocumentField($documentType, $arFields)
{
if ($storage = self::needProxyToDiskByDocType($documentType)) {
return self::proxyToDisk(__FUNCTION__, array(\Bitrix\Disk\BizProcDocumentCompatible::generateDocumentType($storage->getId()), $arFields));
}
return parent::AddDocumentField($documentType, $arFields);
}