type Pair<T: Type, U: Type> {
    left: T,
    right: U,
}

fn makePair<T: Type, U: Type>(left: T, right: U) -> Pair<T, U> {
    return Pair { left: left, right: right }
}

pub fn main() -> Void {
    let pair: Pair<i32, u8> = makePair(7, 9_u8)
    expect (pair.left == 7)
    expect (pair.right == 9_u8)
}