code: def teardown(self):
      # delete last bookmark
      self.shell.process_input_line(
          "bookmark -d ipy_savedir", store_history=False
      )
      self.shell.clear_cout()
  
imports: from __future__ import print_function
  import atexit
  import errno
  import os
  import re
  import sys
  import tempfile
  import ast
  import warnings
  import shutil
  from docutils.parsers.rst import directives
  from docutils.parsers.rst import Directive
  from traitlets.config import Config
  from IPython import InteractiveShell
  from IPython.core.profiledir import ProfileDir
  from IPython.utils import io
  from IPython.utils.py3compat import PY3
label_desc: Use image node_id 3 for calling the IPythonDirective obj's underlying member method code with example usage: obj.teardown() without return types