code: def test_top_topics(self):
      top_topics = self.model.top_topics(self.corpus)
  
      for topic, score in top_topics:
          self.assertTrue(isinstance(topic, list))
          self.assertTrue(isinstance(score, float))
  
          for v, k in topic:
              self.assertTrue(isinstance(k, str))
              self.assertTrue(np.issubdtype(v, np.floating))
  
imports: import logging
  import numbers
  import os
  import unittest
  import copy
  import numpy
  from numpy.testing import assert_allclose
  from gensim.corpora import mmcorpus, Dictionary
  from gensim.models import ldamodel, ldamulticore
  from gensim import matutils, utils
  from gensim.test import basetmtests
  from gensim.test.utils import datapath, get_tmpfile, common_texts
label_desc: Use image node_id 8 for calling the TestLdaModel obj's underlying member method code with example usage: obj.test_top_topics() without return types