message: Added missing word in error message.
diff: @@ -2069,7 +2069,7 @@ def _maybe_mask_score(score,
  raise ValueError("memory_sequence_length and memory_mask can't be provided "
  "at same time.")
  if memory_sequence_length is not None:
  - message = "All values in memory_sequence_length must greater than zero."
  + message = "All values in memory_sequence_length must be greater than zero."
  with ops.control_dependencies(
  [check_ops.assert_positive(memory_sequence_length, message=message)]):
  memory_mask = array_ops.sequence_mask(
  