code: def test_datasets_replace(self):
      from torchvision import datasets
  
      origin_set = set(datasets.__all__)
      del datasets
      from bigdl.nano.pytorch.vision import datasets
  
      new_set = set(dir(datasets))
      assert origin_set.issubset(new_set)
  
imports: import pytest
  from unittest import TestCase
label_desc: Use image node_id 1 for calling the TestDatasetsImport obj's underlying member method code with example usage: obj.test_datasets_replace() without return types