import type * as Express from 'express';
type StreamOptions = {
    statusCode?: number;
    responseHeaders?: Record<string, string>;
};
/**
 * Render a React component to a stream.
 * @param Component
 * @param res
 * @param options
 * @returns
 */
export declare const renderToStream: (Component: React.ReactNode, res: Express.Response, options?: StreamOptions) => Promise<unknown>;
export declare const renderToString: (Component: React.ReactNode) => string;
export {};