message: Fix util test
  Summary: Snuck past with our broken CI....
  Test Plan: all tests pass.
  Reviewers: #tensorflow, hakons
diff: @@ -137,7 +137,8 @@ class ContribIpuOpsTest(test_util.TensorFlowTestCase):
  self.assertTrue(cfg.serialization_folder, folder_name)
  cfg = ipu.utils.create_ipu_config()
  - cfg = ipu.utils.set_ipu_connection_type(cfg, IpuDeviceConnectionType.NEVER)
  + cfg = ipu.utils.set_ipu_connection_type(
  + cfg, ipu.utils.DeviceConnectionType.NEVER)
  self.assertTrue(cfg.device_connection_type, IpuDeviceConnectionType.NEVER)
  with self.assertRaises(Exception):
  