message: Fix broken test (invalid string comparison in py3)
diff: @@ -362,10 +362,10 @@ class TPUClusterResolverTest(test.TestCase):
  self.assertTrue(tpu_cluster_resolver._inGke())
  self.assertEqual(
  compat.as_bytes('grpc://10.120.27.5:8470'),
  - tpu_cluster_resolver._gkeMaster())
  + compat.as_bytes(tpu_cluster_resolver._gkeMaster()))
  self.assertEqual(
  compat.as_bytes('grpc://10.120.27.5:8470'),
  - tpu_cluster_resolver.get_master())
  + compat.as_bytes(tpu_cluster_resolver.get_master()))
  del os.environ['KUBE_GOOGLE_CLOUD_TPU_ENDPOINTS']
  