export declare class LRU<T> {
    private first;
    private items;
    private last;
    private readonly max;
    private size;
    private readonly ttl;
    constructor(max?: number, ttl?: number);
    has(key: string): boolean;
    clear(): this;
    delete(key: string): this;
    evict(bypass?: boolean): this;
    get(key: string): any;
    keys(): string[];
    set(key: string, value: T, bypass?: boolean): this;
}
export declare const createLRU: (max?: number, ttl?: number) => LRU<unknown>;