code: def test_sync_state(self):
      model2 = self.class_(
          corpus=self.corpus, id2word=dictionary, num_topics=2, passes=1
      )
      model2.state = copy.deepcopy(self.model.state)
      model2.sync_state()
  
      assert_allclose(
          self.model.get_term_topics(2),
          model2.get_term_topics(2),
          rtol=1e-5,
      )
      assert_allclose(
          self.model.get_topics(), model2.get_topics(), rtol=1e-5
      )
  
      # properly continues training on the new state
      self.model.random_state = np.random.RandomState(0)
      model2.random_state = np.random.RandomState(0)
      self.model.passes = 1
      model2.passes = 1
      self.model.update(self.corpus)
      model2.update(self.corpus)
  
      assert_allclose(
          self.model.get_term_topics(2),
          model2.get_term_topics(2),
          rtol=1e-5,
      )
      assert_allclose(
          self.model.get_topics(), model2.get_topics(), rtol=1e-5
      )
  
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 2 for calling the TestLdaModel obj's underlying member method code with example usage: obj.test_sync_state() without return types