code: def _replace_none(params: Any) -> Any:
      if params == "None":
          return None
      elif isinstance(params, dict):
          for key, value in params.items():
              params[key] = _replace_none(value)
          return params
      elif isinstance(params, list):
          return [_replace_none(value) for value in params]
      return params
  
imports: import copy
  from itertools import chain
  import json
  import logging
  import os
  import zlib
  from collections import OrderedDict
  from collections.abc import MutableMapping
  from os import PathLike
  from typing import Any, Dict, List, Union, Optional, TypeVar, Iterable, Set
  from allennlp.common.checks import ConfigurationError
  from allennlp.common.file_utils import cached_path
label_desc: Use image node_id 8 for calling a global function with example usage: _replace_none(params) and returns: params, None, params, unknown