**Describe the bug** Using `show_category_heading: true` and `group_by_category: true` does not work. **To Reproduce** Enable these settings **Expected behavior** Expected to have TOC separate them **Fix** The bug seems to happen here https://github.com/mkdocstrings/python/blob/d5ea1c5cf7884d8c019145f73685a84218e69840/src/mkdocstrings_handlers/python/templates/material/_base/children.html#L16 Removing ``any()`` results in the expected behavior. Since we're calling `.values()`, if there's no values it already returns `False`.