import { TokenCache, TokenCacheInitOptions } from "./tokencache";
import { timestamp, TokenType } from "../base/options";
export interface RedisCacheInitOptions extends TokenCacheInitOptions {
    /**
     * Redis 的地址
     */
    redisHost: string;
    /**
     * Redis 的端口
     */
    redisPort: number;
    /**
     * Redis 的密码
     */
    redisPassword?: string;
    redisAppKeyName?: string;
    redisMailKeyName?: string;
    redisCheckInKeyName?: string;
    redisApprovalKeyName?: string;
}
/**
 * Wrapper of RedisClient.
 */
export declare class RedisCache extends TokenCache {
    private redisHost;
    private redisPort;
    private redisPassword;
    private redisAppKeyName;
    private redisMailKeyName;
    private redisCheckInKeyName;
    private redisApprovalKeyName;
    constructor(options: RedisCacheInitOptions);
    /**
     * @override
     */
    updateToken(type: TokenType, data: string): Promise<void>;
    /**
     * @override
     */
    getToken(type: TokenType): Promise<string>;
    private getRedisKeyName_;
    /**
     * Get value by key
     */
    get(key: string): Promise<string>;
    /**
     * Set value with key
     */
    set(key: string, value: string, expiredAt?: timestamp): void;
    private createClient_;
}