docstr: Create a crash handler, typically setting sys.excepthook to it.
code: def init_crash_handler(self):
      """Create a crash handler, typically setting sys.excepthook to it."""
      self.crash_handler = self.crash_handler_class(self)
      sys.excepthook = self.excepthook
  
      def unset_crashhandler():
          sys.excepthook = sys.__excepthook__
  
      atexit.register(unset_crashhandler)
  
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 11 for calling the BaseIPythonApplication obj's underlying member method code with example usage: obj.init_crash_handler() without return types