import Redis from "ioredis";
export declare class SwsReqResStats {
    private readonly apdexThreshold;
    private readonly redis;
    private readonly redisKey;
    constructor(apdexThreshold: number | undefined, redis: Redis, redisKey: string);
    init(): Promise<void>;
    getStats(): Promise<any>;
    countRequest(clength: number): Promise<void>;
    countResponse(code: number, codeclass: any, duration: number, clength: number): Promise<void>;
    updateRates(elapsed: number): Promise<void>;
}