code: def class_name(obj):
      class_name = str(type(obj))
      class_name = re.search(".*'(.+?)'.*", class_name).group(1)
      return class_name
  
imports: from copy import copy
  from inspect import signature, _empty
  import re
  from collections.abc import Iterable
  from collections import defaultdict
  from itertools import product
  from six import string_types
label_desc: Use image node_id 4 for calling a global function with example usage: class_name(obj) and returns: class_name