import { SubAppRenderPipeline } from "../subapp/subapp-render-pipeline";
import { SubAppSSRData, SubAppFeatureResult, LoadSubAppOptions, SubAppMountInfo } from "../subapp/types";
import { ServerFrameworkLib } from "./types";
/**
 * The server side rendering pipeline for a subapp
 *
 * The pipeline involves preparing the data (which is async), and then rendering the
 * component to string or stream, which can be sync or async.
 *
 * It's also possible that the subapp only wants the data but not actually rendering
 * the component.
 *
 * - load will setup this and kick off prepare data
 * - start will await for prepare data and render, and inject result into HTML
 */
export declare class SubAppServerRenderPipeline implements SubAppRenderPipeline {
    /** options for rendering the subapp into HTML page  */
    options: LoadSubAppOptions;
    /** the promise for subapp's data prepare */
    preparePromise?: Promise<unknown>;
    ssrData?: SubAppSSRData;
    framework?: ServerFrameworkLib;
    startTime?: number;
    /** spot in HTML output to inject the result from SSR */
    outputSpot?: any;
    /** data from prepareData */
    prepResult?: SubAppFeatureResult;
    static INITIAL_STATE_TAG_ID: number;
    constructor(data: SubAppSSRData);
    start(_reload?: boolean): Promise<any>;
    /** start to run through all the subapp's features to prepare data for calling renderToString */
    startPrepare(): void;
    waitForPrepare(): Promise<SubAppFeatureResult>;
    getPrepResult(): SubAppFeatureResult;
    isPrepared(): boolean;
    executeRender(): void;
    /** Hot module reload (HMR) support - empty filler */
    _reload: () => Promise<any>;
    /** For HMR: a component mount itself to the subapp/pipeline - empty filler */
    _mount: (info: SubAppMountInfo) => void;
    /** For HMR: a component unmount itself from the subapp/pipeline - empty filler */
    _unmount: (info: SubAppMountInfo) => void;
}