BaseObject::getExternalLinkObject

private function getExternalLinkObject(DiskBaseObject $object): ?DiskExternalLink
{
	$extLinks = $object->getExternalLinks([
		'filter' => [
			'OBJECT_ID' => $object->getId(),
			'CREATED_BY' => $this->getCurrentUser()->getId(),
			'TYPE' => ExternalLink::TYPE_MANUAL,
			'=IS_EXPIRED' => false,
		],
		'limit' => 1,
	]);

	return array_pop($extLinks);
}