type Runtime = 'node' | 'edge' | 'lambda';
export declare function createHandler({ router, runtime, }: {
    router: any;
    runtime?: Runtime;
}): ((req: Request) => Promise<import("undici-types").Response>) | ((req: any, res: any) => Promise<void>) | ((event: any) => Promise<{
    statusCode: number;
    headers: {
        [k: string]: string;
    };
    body: string;
}>);
export {};