pub unsafe extern "C" fn fp_device_enroll(
device: *mut FpDevice,
template_print: *mut FpPrint,
cancellable: *mut GCancellable,
progress_cb: FpEnrollProgress,
progress_data: gpointer,
progress_destroy: GDestroyNotify,
callback: GAsyncReadyCallback,
user_data: gpointer,
)