export declare class ArrayMap<K, V> {
    private entries;
    get size(): number;
    at(index: number): [K, V] | undefined;
    set(key: K, value: V): void;
    get(key: K): V | undefined;
    has(key: K): boolean;
    clear(): void;
    delete(key: K): boolean;
    keys(): K[];
    values(): V[];
    forEach(cb: (value: V, key: K) => void): void;
}