import { HttpException } from "@nestjs/common";
import { type JsonWebTokenError, TokenExpiredError } from "jsonwebtoken";
/**
 * Thrown when a JWT fails verification (invalid signature, expired, malformed).
 *
 * Returns 401 Unauthorized.
 */
export declare class TokenFailedVerificationException extends HttpException {
    constructor(cause: JsonWebTokenError | TokenExpiredError);
    get reason(): "expired" | "invalid";
}