message: Add an option to override maximum number of elements in the quantile
  accumulator.
diff: @@ -45,6 +45,7 @@ class QuantileAccumulator(saver.BaseSaverBuilder.SaveableObject):
  init_stamp_token,
  epsilon,
  num_quantiles,
  + max_elements=None,
  name=None,
  container=None):
  """Creates a QuantileAccumulator object.
  @@ -53,6 +54,7 @@ class QuantileAccumulator(saver.BaseSaverBuilder.SaveableObject):
  init_stamp_token: The initial value for the stamp token.
  epsilon: Error bound on the quantile computation.
  num_quantiles: Number of quantiles to produce from the final summary.
  + max_elements: Maximum number of elements added to the accumulator.
  name: the name to save the accumulator under.
  container: An optional `string`. Defaults to `""`
  """
  @@ -67,6 +69,7 @@ class QuantileAccumulator(saver.BaseSaverBuilder.SaveableObject):
  self._quantile_accumulator_handle,
  init_stamp_token,
  epsilon=epsilon,
  + max_elements=max_elements,
  num_quantiles=num_quantiles)
  is_initialized_op = gen_quantile_ops.quantile_accumulator_is_initialized(
  self._quantile_accumulator_handle)
  