export declare class LRUMap<K, V> {
    private limit;
    private map;
    get [Symbol.toStringTag](): string;
    get size(): number;
    constructor(limit: number);
    set(key: K, value: V): this;
    has(key: K): boolean;
    get(key: K): V | undefined;
    delete(key: K): boolean;
    clear(): void;
    private updateItem;
    private getColdestKey;
}