code: def test_get_topics(self):
      topics = self.model.get_topics()
      vocab_size = len(self.model.id2word)
      for topic in topics:
          self.assertTrue(isinstance(topic, np.ndarray))
          # Note: started moving to np.float32 as default
          # self.assertEqual(topic.dtype, np.float64)
          self.assertEqual(vocab_size, topic.shape[0])
          self.assertAlmostEqual(np.sum(topic), 1.0, 5)
  
imports: import numpy
label_desc: Use image node_id 5 for calling the TestBaseTopicModel obj's underlying member method code with example usage: obj.test_get_topics() without return types