[Typing-sig] Re: Supporting dataclass-like semantics

I really like this idea, however I was wondering if there would be any way to add support for classes that wrap a dataclass as I don't think this is a particularly uncommon use case e.g. ``` @dataclass class Foo: bar: int

class Baz: def __init__(self, **kwargs: Any) -> None: self.inner = Foo(**kwargs) ... ```