export interface IFeatureOptions<T> {
    /**
     * The name of the feature state to sync
     */
    stateKey: string;
    /**
     * Filter out (ignore) properties that exist on the feature state.
     *
     * @example
     * // Filter/ignore key with name 'config' and name 'auth'
     * ['config', 'auth']
     *
     * // Filter/ignore only key 'loading' inside object 'auth'
     * ['auth.loading']
     */
    excludeKeys?: string[];
    /**
     * Provide the storage type to sync the feature state to,
     * it can be any storage which implements the 'Storage' interface.
     *
     * It will override the storage property in StorageSyncOptions
     * @see IStorageSyncOptions
     */
    storageForFeature?: Storage;
    /**
     * Sync to storage will only occur when this function returns true
     * @param featureState the next feature state
     * @param state the next state
     */
    shouldSync?: (featureState: T[keyof T], state: T) => boolean;
    /**
     * Serializer for storage keys (feature state),
     * it will override the storageKeySerializer in StorageSyncOptions
     * @see IStorageSyncOptions
     *
     * @param key the storage item key
     */
    storageKeySerializerForFeature?: (key: string) => string;
    /**
     * Serializer for the feature state (before saving to a storage location)
     * @param featureState the next feature state
     */
    serialize?: (featureState: T[keyof T]) => string;
    /**
     * Deserializer for the feature state (after getting the state from a storage location)
     *
     * ISO Date objects which are stored as a string gets revived as Date object by default.
     * @param featureState the feature state retrieved from a storage location
     */
    deserialize?: (featureState: string) => T[keyof T];
}