code: def test_iterator_shuffle_divisible(self):
      dataset = list(range(10))
      it = iterators.MultithreadIterator(dataset, 10, **self.options)
      self.assertNotEqual(it.next(), it.next())
  
imports: from __future__ import division
  import copy
  import unittest
  import numpy
  import six
  from chainer import iterators
  from chainer import serializers
  from chainer import testing
label_desc: Use image node_id 9 for calling the TestMultithreadIterator obj's underlying member method code with example usage: obj.test_iterator_shuffle_divisible() without return types