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This seems to paper over a behavioral difference in Python 3.9 and Python 3.12 with how dataclasses work with mutable variables. On Python 3.12, I get the following error: ValueError: mutable default <class 'dict'> for field EXTRACTORS is not allowed: use default_factory This obviously doesn't occur in our testing environment. When I do what the error tells me, EXTRACTORS doesn't seem to exist as an attribute on the class in at least Python 3.9. The solution provided in this commit seems like the least amount of friction to keep the wheels turning. Signed-off-by: Tristan Partin <tristan@neon.tech>