export declare class BiMap<K, V> {
    map: Map<K | V, V | K>;
    reverseMap: Map<V | K, K | V>;
    constructor();
    get(keyOrVal: K | V): V | K | undefined;
    set(key: K | V, value: V | K): void;
    has(keyOrVal: K | V): boolean;
    delete(keyOrVal: K | V): void;
    clear(): void;
}