import type { Redis } from 'ioredis';
import type { SessionStore } from '../../contracts/SessionStore.js';
/**
 * Redis-backed session store with TTL aligned to session lifetime.
 */
export declare class RedisStore implements SessionStore {
    private readonly redis;
    private readonly prefix;
    private ttlSeconds;
    /**
     * @param redis - Shared Redis connection.
     * @param prefix - Key prefix.
     * @param lifetimeMinutes - Session lifetime used as TTL.
     */
    constructor(redis: Redis, prefix: string, lifetimeMinutes: number);
    /**
     * @inheritdoc
     */
    open(_savePath: string, _sessionName: string): Promise<void>;
    /**
     * @inheritdoc
     */
    close(): Promise<void>;
    /**
     * @inheritdoc
     */
    read(sessionId: string): Promise<string>;
    /**
     * @inheritdoc
     */
    write(sessionId: string, data: string): Promise<void>;
    /**
     * @inheritdoc
     */
    destroy(sessionId: string): Promise<void>;
    /**
     * @inheritdoc
     */
    gc(_maxLifetime: number): Promise<number>;
    private key;
}
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