code: def __init__(self, selector, classname):
      self.selector = selector
      self.classname = classname
  
imports: import time
  import logging
  from selenium.common.exceptions import WebDriverException
  from selenium.webdriver.common.by import By
  from dash.testing.errors import TestingTimeoutError
label_desc: Use image node_id 1 to create a new contains_class object  with example: obj = contains_class(selector, classname)