import { Redis } from 'ioredis';
import { HttpService } from '@nestjs/axios';
import { IotSimModuleOptions } from '../interfaces/options.interface';
export declare class AuthUtil {
    private readonly options;
    private readonly redisClient;
    private readonly httpService;
    constructor(options: IotSimModuleOptions, redisClient: Redis, httpService: HttpService);
    /** 获取Access Token */
    getOneLinkAccessToken(oneLinkKey: string, refresh?: boolean): Promise<string>;
    /** 重新获取access token */
    private renewOneLinkAccessToken;
}