/// <summary>
 /// Lists all the available namespaces within the subscription
 /// irrespective of the resourceGroups.  (see
 /// http://msdn.microsoft.com/en-us/library/azure/hh780759.aspx for
 /// more information)
 /// </summary>
 /// <param name='operations'>
 /// Reference to the
 /// Microsoft.Azure.Management.NotificationHubs.INamespaceOperations.
 /// </param>
 /// <returns>
 /// The response of the List Namespace operation.
 /// </returns>
 public static Task <NamespaceListResponse> ListAllAsync(this INamespaceOperations operations)
 {
     return(operations.ListAllAsync(CancellationToken.None));
 }