Hi, I am new to Flink and state backend. I find Flink does provide ValueState, ListState, and MapState. But it does not provide State object for HashSet. What is the best practice of storing HashSet State in Flink? Should we use ValueState and set the value to be HashSet? Or should we use ListState and implement a wrapper class for serializing and desterilizing the HashSet to List?
Any help would be appreciated! Best, Jerome
