@wide-energy-11069: to add a function, you'd make paired edits in

src/python/pants/engine/native.py

and `src/rust/engine/src/lib.rs`: find all instances of one the existing functions in those two files to see.

making an interface wise, does https://github.com/pantsbuild/pants/pull/6758/files#diff-6fad80405d15abc3d520485bcc81cb64R447 look right?