let list = [1, 2, 3, 4];

let tuple = {
    field1 = list.0,
    field2 = list.2,
    deeplist = ["foo", "bar"],
};

let testmacro = macro(arg) => {
    output = arg,
};

assert |
    list.0 == 1;
|;
assert |
    list.1 == 2;
|;
assert |
    list.3 == 4;
|;
assert |
    tuple.field1 == 1;
|;
assert |
    tuple.field2 == 3;
|;
assert |
    tuple.deeplist.0 == "foo";
|;
assert |
    tuple.deeplist.1 == "bar";
|;