import type { RateLimitResult, RateLimitStore } from '../security.js';
/** Minimal ioredis-compatible surface — inject your client, no hard dependency. */
export interface RedisLike {
    eval(script: string, numKeys: number, ...args: (string | number)[]): Promise<unknown>;
    del(...keys: string[]): Promise<number>;
}
export interface RedisRateLimitStoreOptions {
    /** Key prefix. Default: 'basalt:ratelimit'. */
    prefix?: string;
    now?: () => number;
}
/**
 * Redis-backed `RateLimitStore` — share one rate limit across every instance,
 * surviving restarts. Inject an ioredis-compatible client:
 *
 * ```ts
 * import Redis from 'ioredis'
 * securityPlugin({ rateLimit: { limit: 100, windowMs: 60_000, store: new RedisRateLimitStore(new Redis(url)) } })
 * ```
 */
export declare class RedisRateLimitStore implements RateLimitStore {
    private readonly redis;
    private readonly prefix;
    private readonly now;
    constructor(redis: RedisLike, options?: RedisRateLimitStoreOptions);
    private key;
    hit(key: string, limit: number, windowMs: number): Promise<RateLimitResult>;
    reset(key: string): Promise<void>;
}