Function extern_spec_Shl_i8_u128_shl 

pub fn extern_spec_Shl_i8_u128_shl(self_: u128, rhs: i8) -> u128

extern spec for u128::shl

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