code: def __init__(self, default_conf):
      super().__init__(default_conf)
      self._registered = False
  
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 1 to create a new QlibConfig object from inherited base classes: Config with example: obj = QlibConfig(default_conf)