import 'package:to_string/to_string.dart'; part 'or_null.g.dart'; /// To hold optional arguments that themselves could be null @toString class OrNull { const OrNull(this.obj); /// Return iff the value of [x] is set to null, which means if [x] itself is /// null, false will still be returned static bool isSetNull(OrNull? x) => x != null && x.obj == null; @override String toString() => _$toString(); final T? obj; }