Can't find the "integrated" Face Detailer & Hand Detailer in Workflow

https://civitai.com/models/315994?modelVersionId=523746

I'm using the Illustrious version. Creator of this workflow says that it's "integrated with Face Detailer and Hand Detailer". I can't find the nodes and I can't find where they're "integrated". But before and after comparison def shows some detailing?