class_docstr: Base Implementation of the Config Keys class. Implements iteration for child classes to inherit.
code: def __iter__(self):
      return iter(
          {
              value
              for (key, value) in self.__class__.__dict__.items()
              if not key.startswith("__")
          }
      )
  
imports: from __future__ import annotations
  from collections import defaultdict
  from dataclasses import dataclass
  from typing import TYPE_CHECKING, Any, Callable, Dict, List
  from inflection import camelize
  from airflow.utils.state import State
label_desc: Use image node_id 1 for calling the BaseConfigKeys obj's underlying member method code with example usage: obj.__iter__() and returns: iter