Handling of str-like slice types

Hi, I'm currently toying around with writing some wrappers around slice types, and quickly ran into the issue of how to be generic over all slices including str-like types: https://users.rust-lang.org/t/generic-bound-over-all-slice-types/98743

So I'd like to know, how does this crate handle the problem, or if it doesn't, have you explored the problem space before coming to the conclusion that this is the best solution for you? Alternatively, is supporting str something you'd like to see in the future?