import monitorcontrol

def get_monitors():
    """Retrieve a list of connected monitors."""
    return monitorcontrol.get_monitors()

def set_brightness(monitor, brightness):
    """Set the brightness of a specific monitor."""
    if not 0 <= brightness <= 100:
        raise ValueError("Brightness must be between 0 and 100")
    with monitor:
        monitor.set_luminance(brightness)
        print(f"Set brightness to {brightness}%")


def chenge_brightness(args):
    try:
        level = args.get('level', 10)
        monitors = get_monitors()
        if not monitors:
            raise OSError(f"No DDC/CI compatible monitors found.")
            return

        for i, monitor in enumerate(monitors):
            set_brightness(monitor, level)

    except Exception as e:
        raise OSError(f"An error occurred: {e}")