import { JSX } from 'react';
import { type Response } from 'express';
import type { Metadata, MetadataWithoutTitleAndDescription } from '../../routing/types.js';
import { BuildOptions } from '../../server/build/index.js';
export type RenderStreamFunction = (StaticRouterComponent: React.ReactNode, res: Response, options: {
    metadata: {
        page: Metadata;
        layout: MetadataWithoutTitleAndDescription;
    };
    assets?: JSX.Element[];
    buildOptions?: BuildOptions;
    statusCode?: number;
    responseHeaders?: Record<string, string>;
}, stream?: boolean) => Promise<void | string>;
/**
 * Render the app to a stream
 * @param StaticRouterComponent
 * @param helmetContext
 * @param res
 * @returns
 */
export declare const render: RenderStreamFunction;