export declare function getLocalStorage(name: string): string | null;
export declare function getSessionStorage(name: string): string | null;
export declare function getCookie(name: string): string | null;
export declare function setLocalStorage(name: string, value: string): void;
export declare function setSessionStorage(name: string, value: string): void;
export declare function setCookie(name: string, value: string, expiration?: number): void;