code: def setUp(self):
      super().setUp()
      """
          Set up a database for testing.
          """
      self.trainer = ListTrainer(
          self.chatbot, show_training_progress=False
      )
  
      data1 = [
          "african or european?",
          "Huh? I... I don't know that.",
          "How do you know so much about swallows?",
      ]
  
      data2 = ["Siri is adorable", "Who is Seri?", "Siri is my cat"]
  
      data3 = [
          "What... is your quest?",
          "To seek the Holy Grail.",
          "What... is your favourite colour?",
          "Blue.",
      ]
  
      self.trainer.train(data1)
      self.trainer.train(data2)
      self.trainer.train(data3)
  
imports: from tests.base_case import ChatBotTestCase
  from chatterbot.trainers import ListTrainer
  from chatterbot import preprocessors
label_desc: Use image node_id 1 for calling the ChatterBotResponseTests obj's underlying member method code with example usage: obj.setUp() without return types