export interface IHMSSessionStoreActions<T> {
    set<K extends keyof T>(key: K, value?: T[K]): Promise<void>;
    /**
     * observe a particular key or set of keys to receive updates of its latest value when its changed
     */
    observe(keys: keyof T | Array<keyof T>): Promise<void>;
    /**
     * unobserve a particular key or set of keys to stop receiving updates of its latest value
     */
    unobserve(keys: keyof T | Array<keyof T>): Promise<void>;
}