assertEq(typeof(1), "int")
assertEq(typeof("Hello"), "str")
assertEq(typeof(true), "boolean")

# lists
assertEq(typeof(["Hello", "world"]), "[str]")
assertEq(typeof([0, 1]), "[int]")
assertEq(typeof((0, 1)), "(int, int)")

type Vec2 = (int, int)

fn add(a: Vec2, b: Vec2) -> Vec2 {
    (a[0] + b[0], a[1] + b[1])
}