code: def create_db(self):
      location, fname = os.path.split(self.temp_db)
      log = logging.getLogger("test")
      log.setLevel(logging.CRITICAL)
      return SQLiteDB(location=location, filename=fname, log=log)
  
imports: import logging
  import os
  import tempfile
  import time
  from datetime import datetime, timedelta
  from unittest import TestCase
  import pytest
  from jupyter_client.session import Session
  from ipyparallel import util
  from ipyparallel.controller.dictdb import DictDB
  from ipyparallel.controller.hub import init_record
  from ipyparallel.controller.sqlitedb import SQLiteDB
  from ipyparallel.util import utc
label_desc: Use image node_id 2 for calling the TestSQLiteBackend obj's underlying member method code with example usage: obj.create_db() and returns: SQLiteDB