The first part of a post is mere reasoning showing how I got to the actual interface I use. @decorator works with `call` not with `func, args, *kwargs`.
Ah, OK. So there's no way to express an example that needs to get at func, etc.?
I think I'd separate out an @decorator that fixes the metadata on the returned function, and another one, using it, that makes a decorator that works on the call() interface.
