Function extern_spec_T_A_Vec_T_A_shrink_to_fit 

pub fn extern_spec_T_A_Vec_T_A_shrink_to_fit<T, A: Allocator>(
    self_: &mut Vec<T, A>,
)

extern spec for Vec<T, A>::shrink_to_fit

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

terminates

ghost

ensures

(^self)@ == self@