code: def testTempDownloadDir(self):
      self.assertEquals(
          "/a/b.t.tmp", resolver._temp_download_dir("/a/b/", "t")
      )
  
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 4 for calling the CompressedResolverTest obj's underlying member method code with example usage: obj.testTempDownloadDir() without return types