use array::ArrayTrait;
fn run_test() -> (u32, u32, u32, u32) {
let mut numbers = ArrayTrait::new();
numbers.append(4_u32);
numbers.append(3_u32);
numbers.append(2_u32);
numbers.append(1_u32);
(
*numbers.at(0),
*numbers.at(1),
*numbers.at(2),
*numbers.at(3),
)
}