code: def get_db(self):
      if self.db is not None:
          return self.db
  
      try:
          self.db = _CookieDBManager.get_database()
      except _CookieCacheException as err:
          get_yf_logger().info(
              f"Failed to create CookieCache, reason: {err}. "
              "CookieCache will not be used. "
              "Tip: You can direct cache to use a different location with 'set_tz_cache_location(mylocation)'"
          )
          self.dummy = True
          return None
      return self.db
  
imports: import peewee
  from threading import Lock
  import os
  import appdirs
  import atexit
  import datetime
  import pickle
  from .utils import get_yf_logger
label_desc: Use image node_id 2 for calling the _CookieCache obj's underlying member method code with example usage: obj.get_db() and returns: self, self, None