export declare class DefaultMap<K, V> extends Map<K, V> {
    _getDefault: (arg1: K) => V;
    constructor(getDefault: (arg1: K) => V, entries?: Iterable<[K, V]>);
    get(key: K): V;
}
interface Key {
}
export declare class DefaultWeakMap<K extends Key, V> extends WeakMap<K, V> {
    _getDefault: (arg1: K) => V;
    constructor(getDefault: (arg1: K) => V, entries?: Iterable<[K, V]>);
    get(key: K): V;
}
export {};