import duration = require('dayjs/plugin/duration');
export default class FormatUtil {
    /** 大驼峰转小驼峰 */
    static upperCamelCaseToLoweCamelCase: (data: string) => string;
    /** 时间格式化年月日时分秒 */
    static formatDate: (date: Date | number | string | undefined) => string;
    static formatDuration: (date: number) => duration.Duration;
    /** 时间格式化时分秒 */
    static formatHms: (date: Date | string | number) => string;
}