code: def initialize_subcommand(self, subc, argv=None):
      if subc in self.deprecated_subcommands:
          self.log.warning(
              "Subcommand `ipython {sub}` is deprecated and will be removed "
              "in future versions.".format(sub=subc)
          )
          self.log.warning(
              "You likely want to use `jupyter {sub}` in the "
              "future".format(sub=subc)
          )
      return super(BaseIPythonApplication, self).initialize_subcommand(
          subc, argv
      )
  
imports: import atexit
  from copy import deepcopy
  import glob
  import logging
  import os
  import shutil
  import sys
  from traitlets.config.application import Application, catch_config_error
  from traitlets.config.loader import ConfigFileNotFound, PyFileConfigLoader
  from IPython.core import release, crashhandler
  from IPython.core.profiledir import ProfileDir, ProfileDirError
  from IPython.paths import get_ipython_dir, get_ipython_package_dir
  from IPython.utils.path import ensure_dir_exists
  from IPython.utils import py3compat
  from traitlets import List, Unicode, Type, Bool, Dict, Set, Instance, Undefined, default, observe
label_desc: Use image node_id 10 for calling the BaseIPythonApplication obj's underlying member method code with example usage: obj.initialize_subcommand(subc, argv) and returns: super