Thank you for the thoughtful response; this is something I had failed to consider (since, as you anticipated, I try to avoid creating deep or highly dynamic abs

Thank you for the thoughtful response; this is something I had failed to consider (since, as you anticipated, I try to avoid creating deep or highly dynamic abstractions), and I do regularly throw in the towel on complex or deeply nested types (either by just omitting them out using a "close enough" type in Python, or by using trait objects in Rust - looking at you, `Map<Chain<RangeInclusive<...>>>`).