This is clearly low quality, non-idiomatic AI-generated Elixir code. So the likely answer is that "you" did not use this at all; AI did.

I review this kind of AI-generated Elixir code on a daily basis. And it makes me want to go back to ~2022, when code in pull requests actually made sense.

Apologies for the rant, this is just a burnt out developer tired of reviewing this kind of code.

PS: companies should definitely highlight "No low-quality AI code" in job listings as a valid perk.

Fwiw, the date range part of this is the lowest quality, I even have an issue open: https://github.com/cpursley/livefilter/issues/2

In production code I'd do a couple passes and tell it to lean into more function head and guard matching, etc.

But it does compiles, and works: https://livefilter.fly.dev/todos?filters%5Bassigned_to%5D%5B...