declare class LocalStorageHelper {
    clientUid: null | string;
    init(payload: {
        clientUid: string;
    }): void;
    saveNotificationsCount(value: number): void;
    getNotificationsCount(): number | null;
    saveDuration(value: number): void;
    getDuration(): number | null;
    saveExcludedTypes(types: string[]): void;
    getExcludedTypes(): string[];
    saveExcludedPopupTypes(types: string[]): void;
    getExcludedPopupTypes(): string[];
    private getLocalStorageKey;
    private localSaveValue;
    private getLocalStorageValue;
}
declare const _default: LocalStorageHelper;
export default _default;
