Is LSTM available in PPO's RL Module

How severe does this issue affect your experience of using Ray?

  • Low: It annoys or frustrates me for a moment.

In this doc page, it seems that we can use LSTM in the PPO algorithm.

However, in this doc page, it seems that LSTM-based RL Modules are not ready for PPO.

I would like to ask which one is accurate, or am i misunderstanding the doc?