import { Components, DateDelta, TimeDelta } from './types';
import { Equatable } from '@esfx/equatable';
export declare class Duration implements Equatable {
    static readonly ZERO: Duration;
    readonly years: number;
    readonly months: number;
    readonly days: number;
    readonly hours: number;
    readonly minutes: number;
    readonly seconds: number;
    readonly milliseconds: number;
    readonly nanoseconds: number;
    constructor(components?: Components<DateDelta | TimeDelta>);
    readonly sign: 1 | 0 | -1;
    plus(deltas?: Components<DateDelta | TimeDelta>): Duration;
    minus(deltas?: Components<DateDelta | TimeDelta>): Duration;
    scale(amount: number): Duration;
    with(components?: Components<DateDelta | TimeDelta>): Duration;
    negate(): Duration;
    abs(): Duration;
    truncate(unit: DateDelta | TimeDelta): Duration;
    toTimeAgoString(): string;
    toString(): string;
    toJSON(): string;
    equals(other: Duration): boolean;
    static fromString(text: string): Duration;
    static fromMilliseconds(milliseconds: number, nanoseconds?: number): Duration;
    static fromNanoseconds(ns: bigint): Duration;
    [Equatable.equals](other: unknown): boolean;
    [Equatable.hash](): number;
}