import { RoundingMathOptions, RoundingMode } from './utils'; type DiffFunc = { (date0: T, date1: T): number; (date0: T, date1: T, roundingMode: RoundingMode): number; (date0: T, date1: T, options: RoundingMathOptions): number; }; export declare const diffYears: DiffFunc; export declare const diffMonths: DiffFunc; export declare const diffWeeks: DiffFunc; export declare const diffDays: DiffFunc; export declare const diffHours: DiffFunc; export declare const diffMinutes: DiffFunc; export declare const diffSeconds: DiffFunc; export declare const diffMilliseconds: DiffFunc; export declare const diffMicroseconds: DiffFunc; export declare const diffNanoseconds: DiffFunc; export {};