code: def test_show_topics(self):
      topics = self.model.show_topics(formatted=False)
  
      for topic_no, topic in topics:
          self.assertTrue(isinstance(topic_no, int))
          self.assertTrue(isinstance(topic, list))
          for k, v in topic:
              self.assertTrue(isinstance(k, str))
              self.assertTrue(isinstance(v, (np.floating, float)))
  
imports: import numpy
label_desc: Use image node_id 4 for calling the TestBaseTopicModel obj's underlying member method code with example usage: obj.test_show_topics() without return types