So in mind, I think that we should support as well:

• bool
• floating

We can fix those in a subsequent PR just to have the documentation CI working for the moment.

ping @jeremiedbb @thomasjpfan

For reference, here is the failure. I think the example failure is by design and should not change because we introduced a bug. I prefer fixing the issue by changing the constraints for pos_label.

If it's urgent to get the CI passing, then I would revert #25108 and follow up with a PR to fix it.

I'm going to open a PR to fix it. I wonder if we should put "no_validation or [Real, str, "boolean"] is enough ?

I think [Real, str, "boolean"] should be enough. I don't see an additional valid type. In this manner, we should also update the docstring.

Looking at the problem again, I would have expected the validation to magically work because isinstance(True, numbers.Integral) is True. I probably missed something in the validation function.