code: def test_tag_values_persisted_to_response(self):
      response = self.chatbot.get_response(
          "Hello",
          persist_values_to_response={"tags": ["tag 1", "tag 2"]},
      )
      self.assertEqual(len(response.tags), 2)
      self.assertIn("tag 1", response.get_tags())
      self.assertIn("tag 2", response.get_tags())
  
imports: from tests.base_case import ChatBotTestCase
  from chatterbot.logic import LogicAdapter
  from chatterbot.conversation import Statement
label_desc: Use image node_id 2 for calling the ChatterBotResponseTestCase obj's underlying member method code with example usage: obj.test_tag_values_persisted_to_response() without return types