import { Request, Response, NextFunction } from 'express';
/**
 * Requires a valid renter Bearer token.
 *
 * Guarantees on success:
 *   req.renterId — the authenticated renter's id
 */
export declare function requireRenterAuth(req: Request, res: Response, next: NextFunction): Promise<void | Response<any, Record<string, any>>>;
/**
 * Optionally extracts renter identity from a Bearer token.
 * Never blocks the request — invalid or absent tokens are silently ignored.
 *
 * Sets on success:
 *   req.renterId — the authenticated renter's id (if token is valid)
 */
export declare function optionalRenterAuth(req: Request, _res: Response, next: NextFunction): Promise<void>;
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