Please add `%!in%` as a small and helpfull addition to `%in%`. IMHO `value %!in% x` is better readable than `!(value %in% x)` and easier to write. Therefore I usually add <img width="145" height="22" alt="Image" src="https://github.com/user-attachments/assets/12f33e30-2afc-40f7-8019-590cdedef2b6" /> in the beginning.