import 'scheme_register_stub.dart' if (dart.library.io) 'entry/scheme_register_native.dart'; registerUrlScheme(String scheme) => doRegisterUrlScheme(scheme); unregisterUrlScheme(String scheme) => doUnregisterUrlScheme(scheme); registerDefaultTorrentClient() => doRegisterDefaultTorrentClient(); unregisterDefaultTorrentClient() => doUnregisterDefaultTorrentClient();