1package foo:foo
2
3interface simple-lists {
4  simple-list1: func(l: list<u32>)
5  simple-list2: func() -> list<u32>
6  simple-list3: func(a: list<u32>, b: list<u32>) -> tuple<list<u32>, list<u32>>
7  simple-list4: func(l: list<list<u32>>) -> list<list<u32>>
8}
9
10world my-world {
11  import simple-lists
12  export simple-lists
13}
14