import type { ExpoConfig } from 'expo/config';
/**
 * Ensures the main app has a URL scheme set so widgetURL can open it.
 * This is an optional feature for deep linking from widgets.
 *
 * @param config - The Expo config object
 * @returns The modified config with URL scheme ensured
 */
export declare function ensureURLScheme(config: ExpoConfig): ExpoConfig;