Describe the bug

On Sphinx < 7.2 we were calling toctree(includehidden=True) and it was working fine. However, starting on Sphinx 7.2 it expects the includehidden= parameter to be a string. This was changed in 6f5a99a

I'm opening this issue mainly to ask if this change was on purpose or was a mistake? What's the approach we should follow here? There are other attributes, like titles_only= and collapse= where we are passing boolean as well and that made me doubt about this.

How to Reproduce

I found this issue when running tests for sphinx_rtd_theme while fixing another internal API change at readthedocs/sphinx_rtd_theme#1503

Environment Information

Python 3.10
Sphinx 7.2.0

Sphinx extensions

No response

Additional context

No response