/// <reference path="../external_declarations/crx.d.ts" />
/// <reference types="node" />
/**
 * Provides convenient way to interact with 'crx' package
 */
import ChromeExtension = require('crx');
export declare class CrxWrapper {
    protected _crx: ChromeExtension;
    constructor(privateKey: Buffer);
    /**
     * Get packed and signed crx
     */
    pack(zipBuffer: Buffer): Promise<Buffer>;
    /**
     * Generates an updateXML for extensions hosted not on Chrome Web Store
     * This xml is used as response at url, specified in manifest's 'update_url' key
     * @see https://developer.chrome.com/apps/autoupdate
     *
     * If appId isn't specified it will be generated from privateKey
     */
    generateUpdateXML(extVersion: string, codebaseUrl: string, appId?: string): Buffer;
}