code: def _merge_grouper(o):
      if isinstance(o, LambdaType):
          return id(o)
      elif isinstance(o, type):
          return o
      elif isfunction(o) or ismethod(o):
          return o.__qualname__
      return o.__class__
  
imports: from __future__ import annotations
  from ..torch_basics import *
  from .core import *
  from .load import *
  from .external import *
  from .transforms import *
  from inspect import isfunction, ismethod
  from .load import _collate_types
label_desc: Use image node_id 4 for calling a global function with example usage: _merge_grouper(o) and returns: o, id, o, o