At this point you already have 2 "models", in the sense of 2 "concepts" or 2 "types": the one with the field and the one without. The second one is implicitly d

At this point you already have 2 "models", in the sense of 2 "concepts" or 2 "types": the one with the field and the one without. The second one is implicitly defined with these annotations, which has a good chance to be annoying sooner or later when you need it to be explicit.