<div id="comment:0"></div> ... as in `src/sage/categories/__init__.py` or `src/sage/combinat/__init__.py` (part of #32501) CC: @tscrim @kwankyu @nthiery Component: **refactoring** Author: **Kwankyu Lee** Branch: **[`ee4367d`](https://github.com/sagemath/sagetrac-mirror/commit/ee4367df90299b3a77e944c5b8daaaae91c40c1c)** Reviewer: **Matthias Koeppe** _Issue created by migration from https://trac.sagemath.org/ticket/32508_