export declare class OrderedMap<A, B> {
    private map;
    private list;
    get(key: A): B | undefined;
    set(key: A, value: B): void;
    delete(key: A): void;
    clear(): void;
    forEach(callback: (value: B, key: A, index: number) => void): void;
    get length(): number;
    keys(): A[];
    values(): NonNullable<B>[];
    entries(): (readonly [A, NonNullable<B>])[];
    [Symbol.iterator](): (readonly [A, NonNullable<B>])[];
}