code: def test_decompress_no_compression(self):
      with pytest.raises(RuntimeError):
          utils._decompress("foo.tar")
  
imports: import contextlib
  import gzip
  import os
  import pathlib
  import re
  import tarfile
  import zipfile
  import pytest
  import torch
  import torchvision.datasets.utils
  from common_utils import assert_equal
  from torch._utils_internal import get_file_path_2
  from torchvision.datasets.folder import make_dataset
  from torchvision.datasets.utils import _COMPRESSED_FILE_OPENERS
label_desc: Use image node_id 10 for calling the TestDatasetsUtils obj's underlying member method code with example usage: obj.test_decompress_no_compression() without return types