We could do better.

We can declare a `UserBase` model that serves as a base for our other models. And then we can make subclasses of that model that inherit its attributes (type declarations, validation, etc).

All the data conversion, validation, documentation, etc. will still work as normally.

    ```

## Zusammenfassung

Verwenden Sie gerne mehrere Pydantic-Modelle und vererben Sie je nach Bedarf.