Error while serializing the given object: Can't pickle <cyfunction ConstrainedList.list_length_validator at 0x110f544b0>: it's not the
same object as pydantic.types.ConstrainedList.list_length_validator
which is much more useful (obviously pickle errors are still obscure as hell, but that's a different topic).
E.g. previously one would get
and now
which is much more useful (obviously pickle errors are still obscure as hell, but that's a different topic).