code: def test_iterator_not_repeat_not_even(self):
      dataset = [1, 2, 3, 4, 5]
      it = iterators.MultithreadIterator(
          dataset, 2, repeat=False, **self.options
      )
  
      self.assertAlmostEqual(it.epoch_detail, 0 / 5)
      self.assertIsNone(it.previous_epoch_detail)
      batch1 = it.next()
      self.assertAlmostEqual(it.epoch_detail, 2 / 5)
      self.assertAlmostEqual(it.previous_epoch_detail, 0 / 5)
      batch2 = it.next()
      self.assertAlmostEqual(it.epoch_detail, 4 / 5)
      self.assertAlmostEqual(it.previous_epoch_detail, 2 / 5)
      batch3 = it.next()
      self.assertAlmostEqual(it.epoch_detail, 5 / 5)
      self.assertAlmostEqual(it.previous_epoch_detail, 4 / 5)
      self.assertRaises(StopIteration, it.next)
  
      self.assertEqual(len(batch3), 1)
      self.assertEqual(sorted(batch1 + batch2 + batch3), dataset)
  
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 8 for calling the TestMultithreadIterator obj's underlying member method code with example usage: obj.test_iterator_not_repeat_not_even() without return types