interface IUnderlyingMap<K, V> {
    has(key: K): boolean;
    get(key: K): V | undefined;
    delete(key: K): boolean;
    set(key: K, value: V): void;
}
interface IManagedMap<K, V> {
    has(key: K): boolean;
    get(key: K): V;
    delete(key: K): boolean;
    set(key: K, value: V): void;
    getUnderlyingDataStructure(): IUnderlyingMap<K, V>;
}
declare type ValueFactory<K, V> = (key: K) => V;
declare function mapFactory<K, V>(factory: ValueFactory<K, V>, map?: IUnderlyingMap<K, V>): IManagedMap<K, V>;
export = mapFactory;
//# sourceMappingURL=index.d.ts.map