docstr: send status (busy/idle) on IOPub
docstr_tok: ["send","status","(","busy\/idle",")","on","IOPub"]
code: def _publish_status(self, status, parent=None):
      """send status (busy/idle) on IOPub"""
      self.session.send(
          self.iopub_socket,
          "status",
          {"execution_state": status},
          parent=parent or self._parent_header,
          ident=self._topic("status"),
      )
  
imports: from __future__ import print_function
  import sys
  import time
  import logging
  import uuid
  from datetime import datetime
  from signal import signal, default_int_handler, SIGINT
  import zmq
  from tornado import ioloop
  from zmq.eventloop.zmqstream import ZMQStream
  from traitlets.config.configurable import SingletonConfigurable
  from IPython.core.error import StdinNotImplementedError
  from ipython_genutils import py3compat
  from ipython_genutils.py3compat import unicode_type, string_types
  from ipykernel.jsonutil import json_clean
  from traitlets import Any, Instance, Float, Dict, List, Set, Integer, Unicode, Bool, observe, default
  from jupyter_client.session import Session
  from ._version import kernel_protocol_version
label_desc: Use image node_id 14 for calling the Kernel obj's underlying member method code with example usage: obj._publish_status(status, parent) without return types