Function extern_spec_Shl_i16_u64_shl 

pub fn extern_spec_Shl_i16_u64_shl(self_: u64, rhs: i16) -> u64

extern spec for u64::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