code: def start(self):
      if self.subapp is not None:
          return self.subapp.start()
      else:
          print(self.ipython_dir)
  
imports: from __future__ import absolute_import
  from __future__ import print_function
  import logging
  import os
  import sys
  import warnings
  from traitlets.config.loader import Config
  from traitlets.config.application import boolean_flag, catch_config_error, Application
  from IPython.core import release
  from IPython.core import usage
  from IPython.core.completer import IPCompleter
  from IPython.core.crashhandler import CrashHandler
  from IPython.core.formatters import PlainTextFormatter
  from IPython.core.history import HistoryManager
  from IPython.core.application import ProfileDir, BaseIPythonApplication, base_flags, base_aliases
  from IPython.core.magics import ScriptMagics
  from IPython.core.shellapp import InteractiveShellApp, shell_flags, shell_aliases
  from IPython.extensions.storemagic import StoreMagics
  from .interactiveshell import TerminalInteractiveShell
  from IPython.paths import get_ipython_dir
  from traitlets import Bool, List, Dict, default, observe, Type
label_desc: Use image node_id 1 for calling the LocateIPythonApp obj's underlying member method code with example usage: obj.start() and returns: self