code: def _get_or_create_tracker_id(class_def):
      with _DYNAMIC_CLASS_TRACKER_LOCK:
          class_tracker_id = _DYNAMIC_CLASS_TRACKER_BY_CLASS.get(
              class_def
          )
          if class_tracker_id is None:
              class_tracker_id = uuid.uuid4().hex
              _DYNAMIC_CLASS_TRACKER_BY_CLASS[
                  class_def
              ] = class_tracker_id
              _DYNAMIC_CLASS_TRACKER_BY_ID[class_tracker_id] = class_def
      return class_tracker_id
  
imports: import builtins
  import dis
  import opcode
  import platform
  import sys
  import types
  import weakref
  import uuid
  import threading
  import typing
  import warnings
  from .compat import pickle
  from collections import OrderedDict
  from typing import ClassVar, Generic, Union, Tuple, Callable
  from pickle import _getattribute
label_desc: Use image node_id 1 for calling a global function with example usage: _get_or_create_tracker_id(class_def) and returns: class_tracker_id