public bool is_quiescent { get; }

Whether the aggregator has reached a quiescent state. This will happen at some point after IndividualAggregator.prepare has successfully completed for the aggregator. An aggregator is in a quiescent state when all the PersonaStores listed by its backends have reached a quiescent state. Once it's reached a quiescent state, this property will never change again (from true to false).

It's guaranteed that this property's value will only ever change after IndividualAggregator.is_prepared has changed to true .