code: def test_cached_path_http_err_handling(self):
      url_404 = "http://fake.datastore.com/does-not-exist"
      byt = b"Does not exist"
      for method in (responses.GET, responses.HEAD):
          responses.add(
              method,
              url_404,
              body=byt,
              status=404,
              headers={"Content-Length": str(len(byt))},
          )
  
      with pytest.raises(FileNotFoundError):
          cached_path(url_404, cache_dir=self.TEST_DIR)
  
imports: import os
  import pathlib
  import json
  import time
  import shutil
  from filelock import Timeout
  import pytest
  import responses
  import torch
  from allennlp.common.file_utils import FileLock, _resource_to_filename, filename_to_url, cached_path, open_compressed, CacheFile, _Meta, _find_entries, inspect_cache, remove_cache_entries, LocalCacheResource, TensorCache
  from allennlp.common import Params
  from allennlp.modules.token_embedders import ElmoTokenEmbedder
  from allennlp.common.testing import AllenNlpTestCase
  from allennlp.predictors import Predictor
label_desc: Use image node_id 6 for calling the TestFileUtils obj's underlying member method code with example usage: obj.test_cached_path_http_err_handling() without return types