Dr.-Ing. Helmut Melcher

Here is my use case for the same feature request: I am the author of NoGraphs, a library dealing with implicit graphs. Here, the application can choose what data types...

I think so, too. Thanks. `None` or `Ellipsis` are valid alternatives. I also agree with the perspective w.r.t. the type system. Furthermore, in the use case, `Optional[int]` with `None` as...

@Avasam, this sounds like a very good idea. I will definitely try this. Thanks!