/**
 * 生成随机ID
 * @param len id长度，0默认为uuid xxxxxxxx-xxxx-4xxx-xxxx-xxxxxxxxxxxx 格式
 * @param radix KeyChars 涉及的长度
 * @returns
 */
declare const uuid: (len?: number, radix?: number) => string;
declare const uuid32: (radix?: number) => string;
/**
 * uuid xxxxxxxx-xxxx-4xxx-xxxx-xxxxxxxxxxxx 格式
 * @param mode 'mixin' | 'lower' | 'upper'
 * @param radix radix KeyChars 涉及的长度
 * @returns
 */
declare const UUID: (mode?: 'lower' | 'upper', radix?: number) => string;
/**
 * 随机ID
 * @param len 默认32
 * @param mode
 * @param radix
 * @returns
 */
declare const randomID: (len?: number, mode?: 'mixin' | 'lower' | 'upper', radix?: number) => string;
export { uuid, UUID, randomID, uuid32 };