/// <summary>
 /// Create web service properties for a specific region.
 /// </summary>
 /// <param name='operations'>
 /// The operations group for this extension method.
 /// </param>
 /// <param name='resourceGroupName'>
 /// Name of the resource group.
 /// </param>
 /// <param name='webServiceName'>
 /// The Azure ML web service name which you want to reach.
 /// </param>
 /// <param name='region'>
 /// The new region of Azure ML web service properties.
 /// </param>
 /// <param name='cancellationToken'>
 /// The cancellation token.
 /// </param>
 public static async Task CreateRegionalPropertiesWithRequestIdAsync(this IWebServicesOperations operations, string resourceGroupName, string webServiceName, string region, CancellationToken cancellationToken = default(CancellationToken))
 {
     await operations.CreateRegionalPropertiesWithProperRequestIdAsync(resourceGroupName, webServiceName, region, null, cancellationToken).ConfigureAwait(false);
 }