code: def register(cls, other_cls):
      if other_cls is not DummySocket:
          warnings.warn(
              "SocketABC is deprecated since ipykernel version 4.5.0.",
              DeprecationWarning,
              stacklevel=2,
          )
      abc.ABCMeta.register(cls, other_cls)
  
file_path: catboost/contrib/python/ipykernel/py2/ipykernel/inprocess/socket.py
imports: import abc
  import warnings
  import zmq
  from traitlets import HasTraits, Instance, Int
  from ipython_genutils.py3compat import with_metaclass
label_desc: Use image node_id 3 for calling the SocketABC obj's underlying member method code with example usage: obj.register(cls, other_cls) without return types