import type { NextFunction, Request, Response } from 'express';
import type { AuthManager } from '../AuthManager.js';
/**
 * Ensures at least one configured guard successfully authenticates the request.
 */
export declare class AuthMiddleware {
    private readonly auth;
    /**
     * @param auth - Authentication manager.
     */
    constructor(auth: AuthManager);
    /**
     * Express middleware factory (`auth`, `auth:api`, ...).
     *
     * @param guards - Guard names to try in order; defaults to the configured default guard.
     */
    handle(guards?: string[]): (req: Request, res: Response, next: NextFunction) => Promise<void>;
}
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