[flanked-evergl]

Dataclasses support optional fields and kwargs perfectly. Not sure what you are talking about.

I don't think you understand what Pydantic brings to the table or why people use it. It has lots more to do with serialization, complex validation and data mapping.

[phailhaus]

kwargs are not dataclasses, they are dicts. TypedDict was shoehorned in later to allow typing dicts, but they are so poorly designed that you can't mark individual fields as optional.