import type { NexusAI } from '../core/nexus.js';
/** Options for `createNexusRouteHandler()`. */
export interface NexusRouteHandlerOptions {
    /** The client that answers each request. */
    ai: NexusAI;
    /** Streams the answer as server-sent events instead of returning it whole. Off by default. */
    stream?: boolean;
}
/**
 * Creates a Next.js `POST` route handler that completes the posted request, or streams it as
 * server-sent events when streaming is on.
 */
export declare function createNexusRouteHandler(options: NexusRouteHandlerOptions): (request: Request) => Promise<Response>;