import { NestMiddleware } from '@nestjs/common';
import { NextFunction, Request, Response } from 'express';
import type { OAuth2ParamsInterface } from '../../providers';
import { AuthCacheService } from '../../providers/auth-cache.service';
import { KeycloakTokenExchangeService } from '../../providers/keycloak/keycloak-token-enchange.service';
import { AuthService } from '../auth.service';
export declare class KeycloakAuthTokenExchangeMiddleware implements NestMiddleware {
    private readonly authCacheService;
    private readonly KeycloakTokenExchangeService;
    protected readonly params: OAuth2ParamsInterface;
    private readonly authService;
    constructor(authCacheService: AuthCacheService, KeycloakTokenExchangeService: KeycloakTokenExchangeService, params: OAuth2ParamsInterface, authService: AuthService);
    use(req: Request, res: Response, next: NextFunction): Promise<Response | void>;
    private replace;
}
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