Function extern_spec_ShrAssign__ref_i8_i64_shr_assign 

pub fn extern_spec_ShrAssign__ref_i8_i64_shr_assign(self_: &mut i64, rhs: &i8)

extern spec for i64::shr_assign

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

requires

(0usize as $rhs) <= *rhs && *rhs <= ($type::BITS - 1u32) as $rhs

ensures

^self == *self $op *rhs