import type { RateLimitContext, RateLimiterConfig } from '../types/index.js';
import type { Store } from '../store/types.js';
export declare class Limiter {
    store: Store;
    config: RateLimiterConfig;
    private engine;
    constructor(config: RateLimiterConfig);
    check(ctx: RateLimitContext): Promise<{
        allowed: boolean;
        headers: {};
        blocked?: undefined;
        response?: undefined;
    } | {
        allowed: boolean;
        blocked: boolean;
        headers: Record<string, string>;
        response: {
            status: number;
            body: any;
        } | null;
    }>;
    private deriveHeaders;
    private resolveErrorMessage;
}