export declare const LOCAL_STORAGE_KEY: {
    JWT: string;
    EMAIL: string;
    NICKNAME: string;
    SENDER: string;
    NOTIFICATION: string;
    PUSH_ID: string;
};
declare class LocalStorageUtils {
    getItem(key: string, defaultValue: any): any;
    setItem(key: string, value: any): void;
    removeItem(key: string): void;
    clear(): void;
    isAuthenticated(): boolean | string;
    getJWT(): string;
    getEmail(): string;
    getName(): string;
    getNickName(): string;
    generateSenderToken(): void;
    getSenderToken(): string;
    syncPush(id: string): void;
    getPushID(): string;
    setNotificationLoaded(): void;
    isNotificationLoaded(): boolean | string;
}
declare const _default: LocalStorageUtils;
export default _default;