export declare class BiDirectionalMap<K, V> {
    private readonly map;
    private readonly reverse;
    constructor(map?: object | Map<K, V> | Array<[K, V]>);
    readonly size: number;
    set(key: K, value: V): this;
    clear(): void;
    getValue(key: K): V;
    getKey(value: V): K;
    deleteKey(key: K): boolean;
    deleteValue(value: V): boolean;
    hasKey(key: K): boolean;
    hasValue(value: any): boolean;
    keys(): IterableIterator<K>;
    values(): IterableIterator<V>;
    entries(): IterableIterator<[K, V]>;
    forEach(callbackfn: (value: V, key: K, map: Map<K, V>) => void, thisArg?: any): void;
}