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@AA-Turner I have made the requested changes; please review again.

I think ideally types_map would also be a dict[str, list[str]] like types_map_inv is, so that every extension would map to a list of types. But that would be a pretty big breaking change for my first PR here (since types_map gets exported), lemme know if you think I should tackle that instead of my more band-aid solution here.

(Also I'm not sure what's going on with my NEWS build errors, would appreciate any pointers there.)

EDIT: I put up a PR on my fork of how I would do the breaking version. I do think it's cleaner, and more future-proof, but obviously it's a breaking change on types_map and presumably we'd have to go through channels for that. Lemme know your thoughts. robotmlg#1

Thanks for making the requested changes!

@AA-Turner: please review the changes made to this pull request.

This PR is stale because it has been open for 30 days with no activity.