Could you please collaborate on how RUF067 should work with packages such as https://github.com/Erotemic/mkinit, which use dunder variables (e.g., __submodules__, __protected__) to customize the tool's behavior?

A. Is this the official Python convention to strictly forbid all non‑official dunder variables? Is there a strict list of "official" variables?

B. Should Ruff allow all custom dunder variables?

C. Or should Ruff let its users extend an allowlist of variables manually?

Originally posted by @simon-liebehenschel in #22143 (comment)