/**
 * It generates the Vercel Edge Middleware file.
 *
 * It creates a temporary file, the edge middleware, with some dynamic info.
 *
 * Then this file gets bundled with esbuild. The bundle phase will inline the Astro middleware code.
 *
 * @param astroMiddlewareEntryPoint
 * @param outPath
 * @returns {Promise<URL>} The path to the bundled file
 */
export declare function generateEdgeMiddleware(astroMiddlewareEntryPointPath: URL, outPath: string, vercelEdgeMiddlewareHandlerPath: URL): Promise<URL>;