/**
 * @file util 工具函数
 */
export declare function prevDate(date: Date, amount?: number): Date;
export declare function nextDate(date: Date, amount?: number): Date;
export declare function prevMonth(date: Date, amount?: number): Date;
export declare function nextMonth(date: Date, amount?: number): Date;
export declare function prevYear(date: Date, amount?: number): Date;
export declare function nextYear(date: Date, amount?: number): Date;
export declare function sortDate(dateList: Date[]): Date[];
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