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## Summary * Add initial support for `typing.dataclass_transform` * Support decorating a function decorator with `@dataclass_transform(…)` (used by `attrs`, `strawberry`) * Support decorating a metaclass with `@dataclass_transform(…)` (used by `pydantic`, but doesn't work yet, because we don't seem to model `__new__` calls correctly?) * *No* support yet for decorating base classes with `@dataclass_transform(…)`. I haven't figured out how this even supposed to work. And haven't seen it being used. * Add `strawberry` as an ecosystem project, as it makes heavy use of `@dataclass_transform` ## Test Plan New Markdown tests