Function extern_spec_Add_Wrapping_usize_Wrapping_usize_add 

pub fn extern_spec_Add_Wrapping_usize_Wrapping_usize_add(
    self_: Wrapping<usize>,
    rhs: Wrapping<usize>,
) -> Wrapping<usize>

extern spec for Wrapping<usize>::add

This is not a real function: its only use is for documentation.

ghost

ensures

result.0 == self.0 + rhs.0