message: Comment fix for tpu symbols.
diff: @@ -148,9 +148,9 @@ class TPUStrategy(distribute_lib.Strategy):
  Args:
  tpu_cluster_resolver: A tf.distribute.cluster_resolver.TPUClusterResolver,
  which provides information about the TPU cluster.
  - device_assignment: Optional `tpu.experimental.DeviceAssignment` to specify
  - the placement of replicas on the TPU cluster. Currently only supports
  - the usecase of using a single core within a TPU cluster.
  + device_assignment: Optional `tf.tpu.experimental.DeviceAssignment` to
  + specify the placement of replicas on the TPU cluster. Currently only
  + supports the usecase of using a single core within a TPU cluster.
  """
  super(TPUStrategy, self).__init__(TPUExtended(
  self, tpu_cluster_resolver, device_assignment=device_assignment))
  @@ -182,9 +182,9 @@ class TPUStrategyV1(distribute_lib.StrategyV1):
  metrics, summaries etc.
  This parameter is only used when Distribution Strategy is used with
  estimator or keras.
  - device_assignment: Optional `tpu.experimental.DeviceAssignment` to specify
  - the placement of replicas on the TPU cluster. Currently only supports
  - the usecase of using a single core within a TPU cluster.
  + device_assignment: Optional `tf.tpu.experimental.DeviceAssignment` to
  + specify the placement of replicas on the TPU cluster. Currently only
  + supports the usecase of using a single core within a TPU cluster.
  """
  super(TPUStrategyV1, self).__init__(TPUExtended(
  self, tpu_cluster_resolver, steps_per_run, device_assignment))
  @@ -427,7 +427,7 @@ class TPUExtended(distribute_lib.StrategyExtendedV1):
  """Experimental method added to be used by Estimator.
  This is a private method only to be used by Estimator. Other frameworks
  - should directly be calling `tpu.experimental.initialize_tpu_system`
  + should directly be calling `tf.tpu.experimental.initialize_tpu_system`
  """
  tpu_strategy_util.initialize_tpu_system(self._tpu_cluster_resolver)
  