/**
 * @license
 * Copyright (c) 2015 The Polymer Project Authors. All rights reserved.
 * This code may only be used under the BSD style license found at
 * http://polymer.github.io/LICENSE.txt
 * The complete set of authors may be found at
 * http://polymer.github.io/AUTHORS.txt
 * The complete set of contributors may be found at
 * http://polymer.github.io/CONTRIBUTORS.txt
 * Code distributed by Google as part of the polymer project is also
 * subject to an additional IP rights grant found at
 * http://polymer.github.io/PATENTS.txt
 */
import * as express from 'express';
export interface AppOptions {
    componentDir: string;
    packageName?: string;
    headers?: {
        [name: string]: string;
    };
    root?: string;
    compile?: 'always' | 'never' | 'auto';
}
export interface PolyserveApplication extends express.Express {
    packageName: string;
}
/**
 * Make a polyserve express app.
 * @param  {Object} options
 * @param  {string} options.componentDir The directory to serve components from.
 * @param  {string} options.packageName A name for this polyserve package.
 * @param  {Object} options.headers An object keyed by header name containing
 *         header values.
 * @param  {string} options.root The root directory to serve a package from
 * @return {Object} An express app which can be served with `app.get`
 */
export declare function makeApp(options: AppOptions): PolyserveApplication;