First - mypyc is really cool, thanks for maintaining it!

I've been looking at trying to compile Hypothesis under mypyc. In doing so I ran into the following under mypyc (mypy 1.14.1, python 3.12):

import attr

@attr.s(slots=True)
class A:
    ints: list[int] = attr.ib()

print(A(ints=[1]).ints) # AttributeError: attribute 'ints' of 'A' undefined

but dropping slots=True runs successfully.

I know that mypyc claims only partial support for attrs/dataclasses. I figure I can just drop slots=True in this case and rely on mypyc's auto-slots instead, but also thought that reporting this would be worthwhile.