code: def test_bzr(get_dataset):
      dataset = get_dataset(name="BZR")
      assert len(dataset) == 405
      assert dataset.num_features == 53
      assert dataset.num_node_labels == 53
      assert dataset.num_node_attributes == 3
      assert dataset.num_classes == 2
      assert str(dataset) == "BZR(405)"
      assert len(dataset[0]) == 3
  
label_desc: Use image node_id 1 for calling a global function with example usage: test_bzr(get_dataset) without return types