declare class Utils {
    /**
     * Description 创建随机id，默认16位
     * @author zzg
     *
     * @static
     * @param {number} [num=16]
     * @returns {string}
     */
    static generateId(num?: number): string;
    /**
     * Description 字符串首字母大写|小写
     * @author zzg
     *
     * @static
     * @param {string} str
     * @param {boolean} [toUpperCase=true]
     * @returns {string}
     */
    static capitalize(str: string, toUpperCase?: boolean): string;
    /**
     * Description 合并对象方法
     * @author zzg
     *
     * @static
     * @param {Record<string, any>} target 目标对象
     * @param {...Record<string, any>[]} sources 源对象数组
     * @returns {Record<string, any>}
     */
    static mergeMethods(target: Record<string, any>, ...sources: Record<string, any>[]): Record<string, any>;
}
export default Utils;