message: specify default values in docs
diff: @@ -102,10 +102,10 @@ class DispatchServer(object):
  Args:
  config: (Optional.) A `tf.data.experimental.service.DispatcherConfig`
  - configration. If `None`, the dispatcher will be use default
  + configration. If `None`, the dispatcher will use default
  configuration values.
  start: (Optional.) Boolean, indicating whether to start the server after
  - creating it.
  + creating it. Defaults to True.
  """
  config = config or DispatcherConfig()
  if config.fault_tolerant_mode and not config.work_dir:
  @@ -196,7 +196,7 @@ class WorkerConfig(
  collections.namedtuple(
  "WorkerConfig",
  ["dispatcher_address", "worker_address", "port", "protocol"])):
  - """Configuration class for tf.data service dispatchers.
  + """Configuration class for tf.data service workers.
  Fields:
  dispatcher_address: Specifies the address of the dispatcher.
  @@ -256,7 +256,7 @@ class WorkerServer(object):
  Args:
  config: A `tf.data.experimental.service.WorkerConfig` configration.
  start: (Optional.) Boolean, indicating whether to start the server after
  - creating it.
  + creating it. Defaults to True.
  """
  if config.dispatcher_address is None:
  raise ValueError("must specify a dispatcher_address")
  