import type { EcoBuildPlugin } from '../../build/contracts/build-types.js';
/**
 * Marks dependency imports as external so Rolldown transpiles only the entry module.
 *
 * @remarks
 * The Rolldown plugin bridge splits specifiers such as `ecopages:images` into
 * `namespace` + `path` before `onResolve`. Returning `external: true` for those
 * would emit a bare `from "images"` import and skip virtual-module `onLoad`.
 * Namespaced imports are left for app plugins (image map, etc.) to inline into
 * this single-file transpile.
 */
export declare function createDevTransformExternalizeImportsPlugin(): EcoBuildPlugin;