class_docstr: An importer that implements the default behavior of Python.
code: def whichmodule(self, obj: Any, name: str) -> str:
      return _pickle_whichmodule(obj, name)
  
imports: import importlib
  from abc import ABC, abstractmethod
  from pickle import _getattribute, _Pickler, whichmodule
  from types import ModuleType
  from typing import Any, Dict, List, Optional, Tuple
  from ._mangling import demangle, get_mangle_prefix, is_mangled
label_desc: Use image node_id 2 for calling the _SysImporter obj's underlying member method code with example usage: obj.whichmodule(obj, name) and returns: _pickle_whichmodule