import { NestMiddleware } from '@nestjs/common';
import { Request, Response } from 'express';
import type { OAuth2ParamsInterface } from '../../providers';
import { AuthService } from '../auth.service';
export declare class AuthServiceAuthMiddleware implements NestMiddleware {
    private readonly authService;
    protected readonly params: OAuth2ParamsInterface;
    private static client;
    constructor(authService: AuthService, params: OAuth2ParamsInterface);
    use(req: Request, res: Response, next: () => void): Promise<Response | void>;
    private getKey;
    private verify;
}
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