import { type SubAppSpec } from './sub-app.js';
import type { Renderable } from './element.js';
/**
 * Mount an isolated sub-application at this point in the view. Returns the anchor
 * node(s) to splice into the surrounding view array (`...subApp({ … })`). Drive
 * the instance — push props in, bubble messages out — via `onHandle`'s handle;
 * the sub-app shares no state with the host. Disposed automatically when the host
 * unmounts.
 */
export declare function subApp<S, M, E = never>(spec: SubAppSpec<S, M, E>): Renderable;
export type { SubAppSpec };
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