        [];
        [0, nil, false];
        [0, [1]];
        let arr = [0, 1, 1, 2, 3, 5, 8, 13];
        arr[5];
        let arr = [[0], [0, 1], [0, 1, 2]];
        arr[2][2];
    ";
    let expected = [
        monkey_array![],
        monkey_array![Integer(0), Nil, Boolean(false)],