/**
 * from https://github.com/microsoft/vscode/blob/e587755905208e47725c5196539c4ca898255fe6/src/vs/base/common/map.ts
 */
import { LinkedMap, Touch } from './LinkedMap';
export declare class LRUCache<K, V> extends LinkedMap<K, V> {
    private _limit;
    private _ratio;
    constructor(limit: number, ratio?: number);
    get limit(): number;
    set limit(limit: number);
    get ratio(): number;
    set ratio(ratio: number);
    get(key: K, touch?: Touch): V | undefined;
    peek(key: K): V | undefined;
    set(key: K, value: V): this;
    private checkTrim;
}