code: def test_not_trained_given_no_corpus(self):
      elda = EnsembleLda(
          id2word=common_dictionary,
          num_topics=NUM_TOPICS,
          passes=PASSES,
          num_models=NUM_MODELS,
          random_state=RANDOM_STATE,
      )
      assert len(elda.ttda) == 0
  
imports: import os
  import logging
  import unittest
  import numpy
  from copy import deepcopy
  import pytest
  from gensim.models import EnsembleLda, LdaMulticore, LdaModel
  from gensim.test.utils import datapath, get_tmpfile, common_corpus, common_dictionary
label_desc: Use image node_id 9 for calling the TestEnsembleLda obj's underlying member method code with example usage: obj.test_not_trained_given_no_corpus() without return types