/// <summary>
 /// Deletes a notification hub associated with a namespace.
 /// </summary>
 /// <param name='operations'>
 /// The operations group for this extension method.
 /// </param>
 /// <param name='resourceGroupName'>
 /// The name of the resource group.
 /// </param>
 /// <param name='namespaceName'>
 /// The namespace name.
 /// </param>
 /// <param name='notificationHubName'>
 /// The notification hub name.
 /// </param>
 /// <param name='cancellationToken'>
 /// The cancellation token.
 /// </param>
 public static async Task DeleteAsync(this INotificationHubsOperations operations, string resourceGroupName, string namespaceName, string notificationHubName, CancellationToken cancellationToken = default(CancellationToken))
 {
     (await operations.DeleteWithHttpMessagesAsync(resourceGroupName, namespaceName, notificationHubName, null, cancellationToken).ConfigureAwait(false)).Dispose();
 }