/// <reference types="node" />
import { JwtPayload } from "jsonwebtoken";
import { NextRequest } from "next/server";
import type { TimeString } from "./time-string";
export declare function tokenSign(payload: string | object | Buffer, expiresIn?: TimeString): Promise<string>;
export declare function tokenVerify(tokenOrRequest?: NextRequest | string): Promise<string | JwtPayload>;