Function extern_spec_Mul_Wrapping_usize_Wrapping_usize_mul 

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

extern spec for Wrapping<usize>::mul

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

ensures

result.0 == self.0 * rhs.0