Least complex rust type signature

I don’t have a clue about what all of that means but I love it!

looks like some attribute essentially containing a function pointer

but not even sure, havent seen that 'for' in signatures yet.

definitely based.

A lazy static byte slice with thread safe obtainment logic.

The none reference param suggests that it implements a type parameter of some sort which takes a generic dependency, otherwise you could just wrap whatever function get_stuff you're assigning in a closure and turn
`for<'a> FnOnce(&'a ()) -> &'a [u8]`
into
`FnOnce() -> &'static [u8]`