class_docstr: Metaclass used to ensure that inherited members of an abstract base class
  also inherit docstrings for inherited methods.
code: def __new__(mcs, classname, bases, cls_dict):
      cls = super().__new__(mcs, classname, bases, cls_dict)
      for name, member in cls_dict.items():
          if member.__doc__ is None:
              for base in bases[::-1]:
                  attr = getattr(base, name, None)
                  if attr is not None:
                      member.__doc__ = attr.__doc__
                      break
      return cls
  
imports: from abc import ABCMeta
  from collections import OrderedDict
  from copy import deepcopy
  from functools import wraps
  import importlib
  import inspect
  import re
  from typing import Callable, Union
label_desc: Use image node_id 1 for calling the AutodocABCMeta obj's underlying member method code with example usage: obj.__new__(mcs, classname, bases, cls_dict) and returns: cls