fn test_main() {
    arr := [u8(1), 2, 3, 4]!
    if arr != [4]u8{} || arr != [4]u8{init: 255} {
        println('success')
    }
    if arr !in [[4]u8{}, [4]u8{init: 255}] {
        println('success')
    }
}