import { RateLimitRequestHandler } from 'express-rate-limit';
import { Request, Response } from 'express';
export interface RateLimitConfig {
    windowMs?: number;
    max?: number;
    keyGenerator?: (req: Request) => string;
    handler?: (req: Request, res: Response) => void;
    skipSuccessfulRequests?: boolean;
    skipFailedRequests?: boolean;
    costFunction?: (req: Request) => number;
}
export declare function createRateLimiter(options?: RateLimitConfig): RateLimitRequestHandler;
export declare function createEndpointRateLimiter(endpoint: string, options?: RateLimitConfig): RateLimitRequestHandler;
export declare function createCostBasedRateLimiter(baseCost?: number, options?: RateLimitConfig): RateLimitRequestHandler;
export declare const RateLimitPresets: {
    auth: RateLimitRequestHandler;
    api: RateLimitRequestHandler;
    static: RateLimitRequestHandler;
    browser: RateLimitRequestHandler;
    expensive: RateLimitRequestHandler;
};
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