message: TF2 API doc: Change 'operation' to 'layer' in the docstring for RecomputationCheckpoint
  Summary: TF2.1 only
  Reviewers: #tensorflow, simonl, #framework_ip_review_-_any_oss_or_third-party_code_use_has_been_approved, georgep
  Subscribers: grahamh
  Maniphest Tasks: T39809
diff: @@ -27,15 +27,15 @@ class RecomputationCheckpoint(Layer):
  When recomputation is enabled, these values will not be recomputed and they
  will be stored in memory instead.
  - This operation can reduce memory liveness peaks when using recomputation if
  + This layer can reduce memory liveness peaks when using recomputation if
  there are too many activations which need to be recomputed before the
  backpropagation operations can be executed.
  - This operation should be used with the
  + This layer should be used with the
  `RecomputationMode.RecomputeAndBackpropagateInterleaved` pipelining
  recomputation mode.
  - Note that this operation has no effect when used with the
  + Note that this layer has no effect when used with the
  `RecomputationMode.RecomputeThenBackpropagate` pipelining
  recomputation mode.
  """
  @@ -45,7 +45,7 @@ class RecomputationCheckpoint(Layer):
  def call(self, inputs, **kwargs):
  """
  - Checkpoint the 'inputs'.
  + Checkpoint the input tensors.
  Args:
  inputs: A tensor or a structure of tensors which should be checkpointed.
  