export interface RateLimiterConfig {
    maxRequestsPerMinute?: number;
    maxRequestsPerHour?: number;
    maxCostPerHour?: number;
}
export interface RateLimitState {
    allowed: boolean;
    retryAfterMs?: number;
    reason?: string;
}
export declare function createRateLimiter(config?: RateLimiterConfig): {
    check(): RateLimitState;
    record(cost?: number): void;
    getStats(): {
        requestsLastMinute: number;
        requestsLastHour: number;
        costLastHour: number;
    };
    reset(): void;
};
export type RateLimiter = ReturnType<typeof createRateLimiter>;
//# sourceMappingURL=rate-limiter.d.ts.map