Procs

proc beep(frequency, duration: int) {....raises: [Exception, ValueError, OSError,
    IOError, EOFError, KeyError], tags: [RootEffect].}

proc playSound(sound: string; flags: int) {.
    ...raises: [Exception, ValueError, OSError, IOError, EOFError, KeyError],
    tags: [RootEffect].}

proc messageBeep(tipe: int) {....raises: [Exception, ValueError, OSError, IOError,
                                       EOFError, KeyError], tags: [RootEffect].}

proc messageBeep() {....raises: [Exception, ValueError, OSError, IOError, EOFError,
                              KeyError], tags: [RootEffect].}