code: def __setstate__(self, d):
      version = d.pop("version", None)
      if version is None and "_variables" in d:
          d["_len"] = len(d.pop("_variables"))
          d["primary_variables"] = d.pop("primary_fields")
  
      self.__dict__ = d
  
imports: from __future__ import annotations
  import copyreg
  import pkgutil
  import types
  from typing import TYPE_CHECKING, cast
  import numpy
  import dedupe.variables
  from dedupe.variables.base import FieldType
  from dedupe.variables.base import MissingDataType, Variable
  from dedupe.variables.interaction import InteractionType
label_desc: Use image node_id 9 for calling the DataModel obj's underlying member method code with example usage: obj.__setstate__(d) without return types