How do I link to a symbol in another module?

I created a SwiftUI View extension onChange(of:initial:debounceFor:_:), and I want its documentation to link to the docs for one of the onChange(of:inital:_:) symbols. But I can't figure out how to do that.

The docs say to do something like


but that doesn't work. I can't even get a reference to


(it just finds my own View extension). I also tried


I'm building docs in Xcode 15.3.