code: def _safe(class_):
      """
      Return if the class is safe for testing as subclass. Ref #2.
      """
      return not getattr(class_, "__origin__", None)
  
file_path: catboost/contrib/deprecated/python/singledispatch/singledispatch/__init__.py
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  from __future__ import unicode_literals
  from weakref import WeakKeyDictionary
  from .helpers import MappingProxyType, get_cache_token, get_type_hints, update_wrapper
label_desc: Use image node_id 4 for calling a global function with example usage: _safe(class_) and returns: unknown