code: def test_transform_dataset(self):
      td = datasets.TransformDataset(self.dataset, self.transform)
      self.assertEqual(len(td), len(self.dataset))
  
      for i in range(len(td)):
          example = td[i]
          if isinstance(example, tuple):
              for j, arr in enumerate(example):
                  numpy.testing.assert_array_equal(
                      arr, self.transform(self.dataset[i][j])
                  )
          else:
              numpy.testing.assert_array_equal(
                  example, self.transform(self.dataset[i])
              )
  
file_path: chainer/tests/chainer_tests/datasets_tests/test_transform_dataset.py
imports: import unittest
  import numpy
  from chainer import datasets
  from chainer import testing
label_desc: Use image node_id 2 for calling the TestTransformDataset obj's underlying member method code with example usage: obj.test_transform_dataset() without return types