import type { RateLimitResult, AlgorithmType } from '../types/index.js';
export interface Store {
    consume(key: string, window: number, max: number, algorithm?: AlgorithmType, burst?: number): Promise<RateLimitResult> | RateLimitResult;
}
export declare class MemoryStore {
    private static readonly store;
    private static activeStoresCount;
    private static cleanupInterval;
    private maxEntries;
    private destroyed;
    constructor(options?: {
        maxEntries?: number;
    });
    private static pruneExpiredEntries;
    private enforceMaxEntries;
    destroy(): void;
    consume(key: string, window: number, max: number): RateLimitResult;
    peek(key: string, window: number, max: number): RateLimitResult;
    reset(key?: string): void;
    getStats(): {
        totalKeys: number;
    };
    clear(): void;
}