declare class EMap<K, V> {
    private _map;
    set(key: K, value: V): void;
    delete(key: K): void;
    clone(): EMap<K, V>;
    forEach(callbackfn: (value: V, key: K, map: Map<K, V>) => void, thisArg?: any): void;
    toArray(): V[];
    last(): V;
    first(): V;
    readonly size: number;
    has(key: K): boolean;
    get(key: K): V;
}
export { EMap };