/**
 * Run the local development server and return the URL
 */
export declare function runDevServer(cwd?: string): Promise<{
    url: string;
    stopDev: () => Promise<void>;
}>;
/**
 * Runs tests against the development server
 */
export declare function runDevTest(url: string, artifactDir: string, browserPath?: string, headless?: boolean, bail?: boolean, skipClient?: boolean, realtime?: boolean, skipHmr?: boolean, skipStyleTests?: boolean): Promise<void>;