code: def reset_qlib_version(self):
      import qlib  # pylint: disable=C0415
  
      reset_version = self.get("qlib_reset_version", None)
      if reset_version is not None:
          qlib.__version__ = reset_version
      else:
          qlib.__version__ = getattr(qlib, "__version__bak")
  
imports: from __future__ import annotations
  import os
  import re
  import copy
  import logging
  import platform
  import multiprocessing
  from pathlib import Path
  from typing import Callable, Optional, Union
  from typing import TYPE_CHECKING
  from qlib.constant import REG_CN, REG_US, REG_TW
label_desc: Use image node_id 9 for calling the QlibConfig obj's underlying member method code with example usage: obj.reset_qlib_version() without return types