import type { Scope } from 'harper';
export declare const HMR_PATH = "/@harper-vite-hmr";
/**
 * Development mode: a Vite dev server in middleware mode with HMR.
 * - SPA: Vite serves assets; HTML navigations get the transformed `index.html` shell (see `renderSpa`).
 * - SSR: Vite serves assets; HTML navigations are rendered on the fly via `ssrLoadModule`.
 *
 * Either way, anything the dev server does not serve falls through to Harper.
 */
export declare function setupDevelopment(scope: Scope, ssrEntry?: string): Promise<void>;