How to use state_saves variable to recover form the checkpoint?

[Arayvapor]

If you lose progress, internet connection, or if a subtask fails, you can always load from a previous state. All of your progress is saved by default in the state_saves variable, which stores each individual checkpoint.But how to use this wonderful fonction?

[LoryPack]

I have been trying to do the same but I don't think this is implemented. You can set a flag load-previous in the yaml file (not load-existing as specified in the example yamls) but it does not do anything in the code.