Implement save system for Containers in Unity integration

Question

We are currently using Sequence and Random Containers in our dialogue system with Wwise.

My question is how can I save the status of a certain container (audio being played for sequence/random and random pool status for random containers) to restore it later? We need it for our save/load system.

I found GetContainerHistory and SetContainerHistory but they seem to not be available through the Unity integration API, is there any workaround