message: Increase the size of sequence_dataset_op_test.
diff: @@ -388,7 +388,7 @@ py_test(
  py_test(
  name = "sequence_dataset_op_test",
  - size = "small",
  + size = "medium",
  srcs = ["sequence_dataset_op_test.py"],
  srcs_version = "PY2AND3",
  tags = ["no_pip"],
  