/**
 * @license
 * Copyright Stbui All Rights Reserved.
 * https://github.com/stbui/prophet
 */
interface FetchedOutDates {
    [key: string]: Date;
    [key: number]: Date;
}
/**
 *
 * @param newRecordIds id的数组 [1,2,3,4,5,6,7,8,9]
 * @param oldRecordFetchedAt 在旧记录获取日期
 * @param now 当前时间
 * @param cacheDuration 从列表中删除旧记录的时间
 *
 * @return
 * {
 *      1: new Date('2020-11-11T11:11:11.000Z'),
 *      2: new Date('2020-12-11T11:11:11.000Z'),
 * }
 */
export declare const getFetchedAt: (newRecordIds: any[], oldRecordFetchedAt?: FetchedOutDates, now?: Date, cacheDuration?: number) => FetchedOutDates;
export default getFetchedAt;