class_docstr: A dummy socket implementing (part of) the zmq.Socket interface. 
class_docstr_tok: ["A","dummy","socket","implementing","(","part","of",")","the","zmq.Socket","interface","."]
code: def _context_default(self):
      return zmq.Context.instance()
  
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 1 for calling the DummySocket obj's underlying member method code with example usage: obj._context_default() and returns: zmq