/**
 * Checks if a URL is an ArcGIS Enterprise portal URL, by checking if it
 * starts with https:// has one or more subdomains before arcgis.com.
 * If it does, then it is NOT an Enterprise portal URL.
 * @param url The URL to check.
 * @returns True if the URL is an Enterprise portal URL, false otherwise.
 */
export declare function isEnterprisePortalUrl(url: string): boolean;