code: def test_meta_backwards_compatible(self):
      url = "http://fake.datastore.com/glove.txt.gz"
      etag = "some-fake-etag"
      filename = os.path.join(
          self.TEST_DIR, _resource_to_filename(url, etag)
      )
      with open(filename, "wb") as f:
          f.write(self.glove_bytes)
      with open(filename + ".json", "w") as meta_file:
          json.dump({"url": url, "etag": etag}, meta_file)
      meta = _Meta.from_path(filename + ".json")
      assert meta.resource == url
      assert meta.etag == etag
      assert meta.creation_time is not None
      assert meta.size == len(self.glove_bytes)
  
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 9 for calling the TestFileUtils obj's underlying member method code with example usage: obj.test_meta_backwards_compatible() without return types