/**
 * LFUCache
 *
 * Least Frequently Used
 *
 * @filename packages/utils/src/Cache/LFUCache/index.ts
 * @author  tujiawei <jiaweitu@marchthepolo.com>
 * @date 2024-03-28 15:15:55
 */
declare class LFUCache {
    private capacity;
    private frequencyMap;
    private misses;
    private hits;
    private cache;
    constructor(capacity: number);
    getCapacity(): number;
    getSize(): number;
    getLeastFrequency(): any;
    setCapacity(capacity: number): void;
    getInfo(): {
        misses: number;
        hits: number;
        capacity: number;
        currentSize: number;
        leastFrequency: any;
    };
    private removeCacheNode;
    has(key: string): boolean;
    getItem(key: string): any;
    setItem(key: string, value: any, frequency?: number): this | undefined;
    parse(json: string): this;
    clear(): this;
    toString(indent: number): string;
}
export default LFUCache;