Is Grappler's autoparallel optimizer hided?

[Stonepia Y]

Grappler offers an autoparallel optimizer as stated in (https://www.tensorflow.org/guide/graph_optimization#available_graph_optimizers).

But there is no explicit tools for setting the flag, the tf.config.optimizer.set_experimental_options() does not offer this option (auto_parallel) either.

Is this the desired behavior? Is it hided deliberately? How could I enable it?

Thanks