export type Interval = [number, number];
/**
 * Uses a List of intervals to determine whether a number is in a set.
 * Intervals are [X, Y) (Start-inclusive, End-exclusive).
 */
export declare class Intervals {
    private _intervals;
    insert(n: Interval): this;
    remove(n: Interval): this;
    contains(n: number | Interval): boolean;
    breakup(n: Interval): Interval[];
}