#![allow(dead_code, deprecated, unused_variables, unused_mut)]
use std::mem::MaybeUninit;
fn main() {
    assert_eq!(size_of::< MaybeUninit < u64 >> (), size_of::< u64 > ());
    assert_eq!(align_of::< MaybeUninit < u64 >> (), align_of::< u64 > ());
}