MNT support array functions in numpy>=1.25

[adrinjalali]

Persistence is broken since from numpy=1.25.0 np.mean is now dispatched via _ArrayFunctionDispatcher.

This fixes the issue.

Also opened an issue here: numpy/numpy#24019

We should do a quick minor release for this probably.

[adrinjalali]

cc @skops-dev/maintainers

[lazarust]

I can't merge PRs but this looks good to me!

[BenjaminBossan]

Ugh, this is unfortunate.

It could very well happen sooner or later that we cannot rely on singledispatch anymore because of stuff like this. Hopefully I'm wrong but I wouldn't like to write a custom dispatcher (again).

[adrinjalali]

The real dispatch here would be inspect.issubroutine it seems, but we can't do that with singledispatch.

[BenjaminBossan]

The real dispatch here would be inspect.issubroutine it seems, but we can't do that with singledispatch.

I would suggest that as long as it only affects this one function, we can live with the workaround; if there are more of exceptions needed in the future, we might have to roll our own dispatcher that can optionally use issubroutine.