You cannot credit a sample
pytest invites contributors to add an AI tool to the Co-authored-by line. pip, Requests and attrs close any pull request that has one. Same trailer, same ecosystem, opposite rules, and the disagreement is not about manners.
A commit trailer cannot record where model output came from, because a sampled token leaves nothing to point back to, so what open source has built instead is a procedure by which a person assumes authorship of code that has none.