code: def _find_dunder(node_op, dunders) -> Union[Tuple[str, ...], None]:
      dunder = None
      for op, candidate_dunder in dunders.items():
          if isinstance(node_op, op):
              dunder = candidate_dunder
      return dunder
  
imports: from inspect import signature, Signature
  from typing import Any, Callable, Dict, Set, Sequence, Tuple, NamedTuple, Type, Literal, Union, TYPE_CHECKING
  import ast
  import builtins
  import collections
  import operator
  import sys
  from functools import cached_property
  from dataclasses import dataclass, field
  from types import MethodDescriptorType, ModuleType
  from IPython.utils.docs import GENERATING_DOCUMENTATION
  from IPython.utils.decorators import undoc
label_desc: Use image node_id 6 for calling a global function with example usage: _find_dunder(node_op, dunders) and returns: dunder