export declare function cns(...classes: Array<string | false | undefined | null>): string;
/** 秒级时间戳 -> MM-DD HH:mm:ss */
export declare function formatDate(unix: number): string;
/** randomUUID 仅在安全上下文可用，http 页面回退到时间戳 + 随机串 */
export declare const uid: () => `${string}-${string}-${string}-${string}-${string}`;