import { type FormattedPart } from './format.js';
import type { FormatOptions } from './tokens.js';
export type IntervalBounds = 'open' | 'closed' | 'half-open-start' | 'half-open-end';
export interface Interval {
    start: unknown;
    end: unknown;
    bounds: IntervalBounds;
}
export declare function interval(start: unknown, end: unknown, bounds?: IntervalBounds): Interval;
export declare function contains(iv: Interval, value: unknown): boolean;
export declare function overlaps(a: Interval, b: Interval): boolean;
export declare function intersects(a: Interval, b: Interval): boolean;
export declare function isBefore(a: Interval, b: Interval): boolean;
export declare function isAfter(a: Interval, b: Interval): boolean;
export declare function intersection(a: Interval, b: Interval): Interval | null;
export declare function union(a: Interval, b: Interval): Interval | null;
export declare function difference(a: Interval, b: Interval): Interval[];
export declare const subtract: typeof difference;
export declare function mergeIntervals(intervals: Interval[]): Interval[];
export declare function splitInterval(iv: Interval, n: number): Interval[];
export declare function formatRange(iv: Interval, formatStr: string, options?: FormatOptions): string;
export declare function formatRangeToParts(iv: Interval, formatStr: string, options?: FormatOptions): FormattedPart[];