/// <reference types="express" />
import { Request, Response, Send } from 'express';
import { Provider, NgModuleFactory, Type } from '@angular/core';
/**
 * These are the allowed options for the engine
 */
export interface NgSetupOptions {
    aot?: boolean;
    bootstrap: Type<{}> | NgModuleFactory<{}>;
    providers?: Provider[];
}
/**
 * This is an express engine for handling Angular Applications
 */
export declare function ngExpressEngine(setupOptions: NgSetupOptions): (filePath: any, options: {
    req: Request;
    res?: Response;
}, callback: Send) => void;