message: Update decoder.py as discussion
diff: @@ -112,14 +112,14 @@ class Decoder(object):
  raise NotImplementedError
  def finalize(self, outputs, final_state, sequence_lengths):
  - """Called after any decoding iterations.
  + """Called after decoding iterations complete.
  Args:
  outputs: RNNCell outputs (possibly nested tuple of) tensor[s] for all time
  steps.
  final_state: RNNCell final state (possibly nested tuple of) tensor[s] for
  last time step.
  - sequence_lengths: 1-D `int32` tensor containing lengths of each sequences.
  + sequence_lengths: 1-D `int32` tensor containing lengths of each sequence.
  Returns:
  `(final_outputs, final_state)`: `final_outputs` is an object containing
  