import type { Handler } from "../types";
export interface RateLimitOptions {
    windowMs?: number;
    max?: number;
    message?: string | object;
    statusCode?: number;
    headers?: boolean;
    keyGenerator?: (req: {
        ip: string;
        path: string;
        method: string;
    }) => string;
    skip?: (req: {
        ip: string;
        path: string;
        method: string;
    }) => boolean;
    onLimitReached?: (req: {
        ip: string;
        path: string;
        method: string;
    }) => void;
}
export interface RateLimitHandler extends Handler {
    /** Clear the cleanup interval and reset the store */
    reset: () => void;
    /** Get the current store size (for monitoring) */
    readonly size: number;
}
export declare function rateLimit(options?: RateLimitOptions): RateLimitHandler;
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