code: def test_int_tuples(self):
      potentialCorpus = [[(0, 4)]]
      result = utils.is_corpus(potentialCorpus)
      expected = (True, potentialCorpus)
      self.assertEqual(expected, result)
  
imports: import logging
  import unittest
  import numpy
  from gensim import utils
  from gensim.test.utils import datapath, get_tmpfile
label_desc: Use image node_id 3 for calling the TestIsCorpus obj's underlying member method code with example usage: obj.test_int_tuples() without return types