/**
* @param time Date/String/Number
* @param fmt 'yyyy-MM-dd hh:mm:ss' 'yyyy-MM-dd'
* @description formatDate('2020/9/11')
* @returns '2020-09-11 12:03:11' '2020-09-11'
*/
export declare function formatDate(time: string | number | Date, fmt: string): string;