Oh, but I see what you’re saying. Oof, that’s not great. If

black/rules.py

has

{Linter: [BlackFormatter]}

and

bandit/rules.py

has

{Linter: [BanditLinter]}

, how does

backend/python/register.py

merge those two?

{**d1, **d2}

doesn’t work. That’s not great.

this is the same as if you declared the same UnionRule in two places today