pub unsafe extern "C" fn clutter_device_manager_get_device(
device_manager: *mut ClutterDeviceManager,
device_id: c_int,
) -> *mut ClutterInputDevicepub unsafe extern "C" fn clutter_device_manager_get_device(
device_manager: *mut ClutterDeviceManager,
device_id: c_int,
) -> *mut ClutterInputDevice