import { MemCacheClient } from '../cacheClient/MemCacheClient';
import { RedisClient } from '../cacheClient/RedisClient';
export type RateProviderType = 'memory' | 'redis';
export type RequestData = {
    requestCount: number;
    windowStartTimestamp: number;
};
export type RateLimitOptions = {
    windowSeconds?: number;
    maxRequests?: number;
    prefix?: string;
};
export declare class RateLimitProvider {
    private maxWindowTimeMs;
    private maxRequests;
    private client;
    private prefix;
    constructor(client?: MemCacheClient | RedisClient, options?: RateLimitOptions);
    getRequestData(userId: string): Promise<RequestData | undefined>;
    isWithinLimits(userId: string): Promise<boolean>;
    isAvailable(): boolean;
    /**
     * Reset request counters for a user by deleting the stored entry.
     */
    reset(userId: string): Promise<void>;
}
export declare const getRateLimitProvider: (type?: RateProviderType, options?: RateLimitOptions) => RateLimitProvider;
export default RateLimitProvider;
//# sourceMappingURL=RateLimitProvider.d.ts.map