code: def testModuleAlreadyDownloaded(self):
      # Simulate the case when a rogue process finishes downloading a module
      # right before the current process can perform a rename of a temp directory
      # to a permanent module directory.
      module_dir = os.path.join(self.get_temp_dir(), "module")
  
      def fake_download_fn_with_rogue_behavior(handle, tmp_dir):
          del handle, tmp_dir
          # Create module directory
          tf.compat.v1.gfile.MakeDirs(module_dir)
          tf_utils.atomic_write_string_to_file(
              os.path.join(module_dir, "file"), "content", False
          )
  
      self.assertEqual(
          module_dir,
          resolver.atomic_download(
              "module", fake_download_fn_with_rogue_behavior, module_dir
          ),
      )
      self.assertEqual(
          tf.compat.v1.gfile.ListDirectory(module_dir), ["file"]
      )
      self.assertFalse(
          tf.compat.v1.gfile.Exists(resolver._lock_filename(module_dir))
      )
      parent_dir = os.path.abspath(os.path.join(module_dir, ".."))
      self.assertEqual(
          sorted(tf.compat.v1.gfile.ListDirectory(parent_dir)),
          ["module", "module.descriptor.txt"],
      )
      self.assertRegexpMatches(
          tf_utils.read_file_to_string(
              resolver._module_descriptor_file(module_dir)
          ),
          "Module: module\n"
          "Download Time: .*\n"
          "Downloader Hostname: %s .PID:%d."
          % (re.escape(socket.gethostname()), os.getpid()),
      )
  
      # Try downloading the model again. Mock
      # tf_utils.atomic_write_string_to_file() to throw an exception. Since the
      # model is already downloaded, the function will never get called and the
      # download succeeds.
      with mock.patch.object(
          tf_utils,
          "atomic_write_string_to_file",
          side_effect=ValueError("This error should never be raised!"),
      ):
          self.assertEqual(
              module_dir,
              resolver.atomic_download(
                  "module",
                  fake_download_fn_with_rogue_behavior,
                  module_dir,
              ),
          )
          self.assertEqual(
              tf.compat.v1.gfile.ListDirectory(module_dir), ["file"]
          )
          self.assertFalse(
              tf.compat.v1.gfile.Exists(
                  resolver._lock_filename(module_dir)
              )
          )
  
imports: import os
  import re
  import socket
  import tempfile
  import threading
  import time
  import unittest
  from unittest import mock
  import uuid
  from absl import flags
  import tensorflow
  import tensorflow_hub
  from tensorflow_hub import compressed_module_resolver
  from tensorflow_hub import config
  from tensorflow_hub import registry
  from tensorflow_hub import resolver
  from tensorflow_hub import test_utils
  from tensorflow_hub import tf_utils
  from tensorflow_hub import uncompressed_module_resolver
label_desc: Use image node_id 9 for calling the CompressedResolverTest obj's underlying member method code with example usage: obj.testModuleAlreadyDownloaded() without return types