/// <summary>
 /// Removes a user from the allowed list of users to access this LUIS
 /// application. Users are removed using their email address.
 /// </summary>
 /// <param name='operations'>
 /// The operations group for this extension method.
 /// </param>
 /// <param name='azureRegion'>
 /// Supported Azure regions for Cognitive Services endpoints. Possible values
 /// include: 'westus', 'westeurope', 'southeastasia', 'eastus2',
 /// 'westcentralus', 'westus2', 'eastus', 'southcentralus', 'northeurope',
 /// 'eastasia', 'australiaeast', 'brazilsouth', 'virginia'
 /// </param>
 /// <param name='azureCloud'>
 /// Supported Azure Clouds for Cognitive Services endpoints. Possible values
 /// include: 'com', 'us'
 /// </param>
 /// <param name='appId'>
 /// The application ID.
 /// </param>
 /// <param name='userToDelete'>
 /// A model containing the user's email address.
 /// </param>
 /// <param name='cancellationToken'>
 /// The cancellation token.
 /// </param>
 public static async Task <OperationStatus> DeleteAsync(this IPermissions operations, AzureRegions azureRegion, AzureClouds azureCloud, System.Guid appId, UserCollaborator userToDelete, CancellationToken cancellationToken = default(CancellationToken))
 {
     using (var _result = await operations.DeleteWithHttpMessagesAsync(azureRegion, azureCloud, appId, userToDelete, null, cancellationToken).ConfigureAwait(false))
     {
         return(_result.Body);
     }
 }