I was just writing some assertions, and wanted to show the option defs for an attr-of an option, isolated using lib.modules.mergeAttrDefinitionsWithPrio.

However, mergeAttrDefinitionsWithPrio only includes the value and highestPrio, with no access to files, definitions, definitionsWithLocations, etc.

I came up with a proof of concept that seems to mostly work, however it's failing nix-build lib/tests/release.nix so is probably not lazy enough?

My question: is there an intended way to print definitions/locations for an attr-of-an-option and, if not, how could I improve my patch to make it PR-ready? Or is there an alternative approach I could take?

In this specific scenario, I'm wanting to showDefs a _module.args.* attr, but the concept could apply to any attrsOf or lazyAttrsOf option.