Dart APIunself_unpackUnpackServiceopen open method Null safety @override FutureOr<List<Mapping>> open(XFile file ) override open returns the supported list of Mapping for the given XFile file. Implementation @override FutureOr<List<Mapping>> open(XFile file) async { final zip = await ZipImport().open(file); throw UnimplementedError(); } unself_unpack unself_unpack UnpackService open method UnpackService class Constructors UnpackService Properties hashCode runtimeType unpacked Methods load noSuchMethod open start toString Operators operator ==