code: def validate_optional_bool(v: Any) -> bool:
      return v is None or isinstance(v, bool)
  
imports: from __future__ import annotations
  import logging
  from dataclasses import dataclass
  from typing import Any, Callable, ClassVar, Dict, Iterable, Mapping, MutableMapping, Optional, Set, Union
label_desc: Use image node_id 2 for calling the Option obj's underlying member method code with example usage: obj.validate_optional_bool(v) and returns: unknown