Function extern_spec_Shr_u128_i64_shr 

pub fn extern_spec_Shr_u128_i64_shr(self_: i64, rhs: u128) -> i64

extern spec for i64::shr

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

requires

(0usize as $rhs) <= rhs && rhs < $type::BITS as $rhs

ensures

result == self $op rhs