code: def setUp(self):
      self.dataset = OnlineProductsDataset(split=self.split)
  
file_path: chainercv/tests/datasets_tests/online_products_tests/test_online_products_dataset.py
imports: import unittest
  import numpy
  from chainer import testing
  from chainer.testing import attr
  from chainercv.datasets import online_products_super_label_names
  from chainercv.datasets import OnlineProductsDataset
  from chainercv.utils import assert_is_label_dataset
label_desc: Use image node_id 1 for calling the TestOnlineProductsDataset obj's underlying member method code with example usage: obj.setUp() without return types