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