Location :: |{
    unknown
    known: (f32, f32)
}

describe: Location -> str: @ location: Location { match location {
    |.unknown => 'unknown'
    |.known (latitude, longitude) if latitude >= 0.0 => 'known'
    |.known (_, _) => 'known'
} }

Point :: &{
    x: i32:
    y: i32:
}

sum_point: Point -> i32: @ point: Point {
    {x as horizontal, y as vertical} :: point
    horizontal + vertical
}

classify_array: []i32 -> str: @ values: []i32 { match values {
    [] => 'empty'
    [only] => 'one'
    [first, ...rest] => 'many'
} }