unit okpair;

struct Pair(A, B) {
    first: A,
    second: B,

    pub fn new(a: A, b: B) -> Self {
        return Self{ first: a, second: b };
    }
}

fn test() -> i32 {
    let p: Pair(i32, u8) = Pair(i32, u8).new(4, 5 as u8);
    return p.first + (p.second as i32);
}