/// <summary>
 /// Updates the specified Content DeliveryNetwork service
 /// </summary>
 /// <param name="cdnService">The <see cref="IContentDeliveryNetworkService"/> service instance.</param>
 /// <param name="serviceId">The service identifier.</param>
 /// <param name="patch">The patch containing updated properties.</param>
 /// <exception cref="ArgumentNullException">If <paramref name="serviceId"/> or <paramref name="patch"/> is <see langword="null"/>.</exception>
 public static void UpdateService(this IContentDeliveryNetworkService cdnService, string serviceId, JsonPatchDocument <ServiceDefinition> patch)
 {
     cdnService.UpdateServiceAsync(serviceId, patch).ForceSynchronous();
 }