proc `+`(a, b: Seconds): Seconds {.borrow, ...raises: [], tags: [], forbids: [].}

proc `+=`(a: var Seconds; b: Seconds) {.borrow, ...raises: [], tags: [],
                                        forbids: [].}

proc `-`(a, b: Seconds): Seconds {.borrow, ...raises: [], tags: [], forbids: [].}

proc elapsed(timer: Timer): Seconds {....raises: [], tags: [], forbids: [].}

func ms(seconds: Seconds): float64 {....raises: [], tags: [], forbids: [].}

proc myGetTicks(): int64 {....raises: [], tags: [], forbids: [].}

proc myGetTime(): int32 {....raises: [], tags: [TimeEffect], forbids: [].}

proc mySubtractTicks(a: int64; b: int64): int64 {....raises: [], tags: [],
    forbids: [].}

proc startTimer(): Timer {....raises: [], tags: [], forbids: [].}