Always happy to see PRs! But to answer your question…
From a process perspective, no. We’re a volunteer project and don’t really assign work.
If you thought the work would be involved, and likely have someone else picking it up, I’d say drop a comment. (But this sounds small, and like you’re already done it)
Similarly, if you thought the implementation would be controversial, or need discussion, I’d suggest creating a blueprint issue to talk about it. (or just talking in that issue). But that’s not happening here.
I’d say just put up a PR. Feel free to ask questions about anything