sub postInterface(interface)
{
	trace(0, "'" . interface->id . "'");
	trace(0, "'" . interface->node . "'");
	parents = GetObjectParents(interface);
	foreach(p : parents)
	{
		trace(0, "Parent object: id=" . p->id);
	}
}

trace(0, "Hook::PostObjectCreate on object class '" . classof($object) ."'");
if (classof($object) match "Interface")
	postInterface($object);
trace(0, "End");

выдаёт:

2019.03.29 11:57:28.714 *I* Hook::PostObjectCreate on object class 'Interface'
2019.03.29 11:57:28.714 *I* '50817'
2019.03.29 11:57:28.714 *I* ''
2019.03.29 11:57:28.714 *I* End