code: def initialize(self, argv=None):
      self.log.debug("jupyter run: initialize...")
      super(RunApp, self).initialize(argv)
      JupyterConsoleApp.initialize(self)
      signal.signal(signal.SIGINT, self.handle_sigint)
      self.init_kernel_info()
  
file_path: catboost/contrib/python/jupyter-client/py2/jupyter_client/runapp.py
imports: from __future__ import print_function
  import logging
  import signal
  import time
  import sys
  from traitlets.config import catch_config_error
  from traitlets import Instance, Dict, Unicode, Bool, List, CUnicode, Any, Float
  from jupyter_core.application import JupyterApp, base_flags, base_aliases
  from .None import __version__
  from .consoleapp import JupyterConsoleApp, app_aliases, app_flags
label_desc: Use image node_id 2 for calling the RunApp obj's underlying member method code with example usage: obj.initialize(argv) without return types