// @dart = 2.9
library test;

class DartType {}

typedef void Asserter<T>(T type);
typedef Asserter<T> AsserterBuilder<S, T>(S arg);
Asserter<DartType> _isInt;
Asserter<DartType> _isString;

abstract class C {
  static AsserterBuilder<List<Asserter<DartType>>, DartType> assertBOf;
  static AsserterBuilder<List<Asserter<DartType>>, DartType> get assertCOf =>
      null;
  AsserterBuilder<List<Asserter<DartType>>, DartType> assertAOf;
  AsserterBuilder<List<Asserter<DartType>>, DartType> get assertDOf;
  method(AsserterBuilder<List<Asserter<DartType>>, DartType> assertEOf) {}
}

abstract class G<T> {
  AsserterBuilder<List<Asserter<DartType>>, DartType> assertAOf;
  AsserterBuilder<List<Asserter<DartType>>, DartType> get assertDOf;
  method(AsserterBuilder<List<Asserter<DartType>>, DartType> assertEOf) {}
}

AsserterBuilder<List<Asserter<DartType>>, DartType> assertBOf;
AsserterBuilder<List<Asserter<DartType>>, DartType> get assertCOf => null;
test() {}
main() {}