public Task <TestBaseClass> TestHierarch2y(TestBaseClass b, TestDerived1Class d1, TestDerived11Class d11) { throw new NotImplementedException(); }
public async Task <TestBaseClass> TestHierarchy(TestBaseClass b, TestDerived1Class d1, TestDerived11Class d11) { Console.WriteLine(b); Console.WriteLine(d1); Console.WriteLine(d11); return(null); }