code: def __call__(self, f_locals: Dict[str, object]) -> bool:
      ...
  
imports: import dataclasses
  import sys
  import types
  from typing import Any, Callable, Dict, List, NamedTuple, Optional, Protocol, Union
  from typing_extensions import TypeAlias
  import torch
label_desc: Use image node_id 1 for calling the GuardFn obj's underlying member method code with example usage: obj.__call__(f_locals) without return types