class_docstr: Dummy DB that will act as a black hole for history.
  
  Only used in the absence of sqlite
class_docstr_tok: ["Dummy","DB","that","will","act","as","a","black","hole","for","history",".","Only","used","in","the","absence","of","sqlite"]
code: def commit(self, *args, **kwargs):
      pass
  
imports: import atexit
  import datetime
  from pathlib import Path
  import re
  import sqlite3
  import threading
  from traitlets.config.configurable import LoggingConfigurable
  from decorator import decorator
  from IPython.utils.decorators import undoc
  from IPython.paths import locate_profile
  from traitlets import Any, Bool, Dict, Instance, Integer, List, Unicode, Union, TraitError, default, observe
label_desc: Use image node_id 2 for calling the DummyDB obj's underlying member method code with example usage: obj.commit() without return types