program main
  fn monotonic_self_equal() -> bool
    local let now: i32
      call std.time.monotonic_ms
    binary =
      var now
      var now
  fn sleep_zero_then_self_equal() -> bool
    call std.time.sleep_ms
      int 0
    call monotonic_self_equal
  fn main() -> i32
    call std.time.sleep_ms
      int 0
    if
      call monotonic_self_equal
      int 0
      int 1
  test "monotonic value is self equal"
    call monotonic_self_equal
  test "sleep zero returns"
    call sleep_zero_then_self_equal