import 'server-only';
import { type NextMiddleware } from "next/server.js";
import { type ChannelDefinition } from "@remkoj/optimizely-graph-client";
/**
 * Wrap the provided middleware with enforcement of the language code as the first
 * slug in the URL.
 *
 * @param       next        The Next.JS Middleware to wrap, will be invoked if there's no redirect needed
 * @param       channel     The Optimizely CMS Application definition
 * @returns     The newly constructed Next.JS Middleware
 */
export declare function withLanguagePrefix<T extends NextMiddleware>(next: T, channel: ChannelDefinition): T;