code: def test_iterator_shuffle_divisible(self):
      dataset = list(range(10))
      it = iterators.SerialIterator(
          dataset,
          10,
          shuffle=self.shuffle,
          order_sampler=self.order_sampler,
      )
      self.assertNotEqual(it.next(), it.next())
  
imports: from __future__ import division
  import unittest
  import numpy
  from chainer import iterators
  from chainer import serializers
  from chainer import testing
label_desc: Use image node_id 5 for calling the TestSerialIteratorShuffled obj's underlying member method code with example usage: obj.test_iterator_shuffle_divisible() without return types