/// <summary>
 /// Deletes a long term retention backup.
 /// </summary>
 /// <param name='operations'>
 /// The operations group for this extension method.
 /// </param>
 /// <param name='resourceGroupName'>
 /// The name of the resource group that contains the resource. You can obtain
 /// this value from the Azure Resource Manager API or the portal.
 /// </param>
 /// <param name='locationName'>
 /// The location of the database
 /// </param>
 /// <param name='longTermRetentionServerName'>
 /// The name of the server
 /// </param>
 /// <param name='longTermRetentionDatabaseName'>
 /// The name of the database
 /// </param>
 /// <param name='backupName'>
 /// The backup name.
 /// </param>
 /// <param name='cancellationToken'>
 /// The cancellation token.
 /// </param>
 public static async Task BeginDeleteByResourceGroupAsync(this ILongTermRetentionBackupsOperations operations, string resourceGroupName, string locationName, string longTermRetentionServerName, string longTermRetentionDatabaseName, string backupName, CancellationToken cancellationToken = default(CancellationToken))
 {
     (await operations.BeginDeleteByResourceGroupWithHttpMessagesAsync(resourceGroupName, locationName, longTermRetentionServerName, longTermRetentionDatabaseName, backupName, null, cancellationToken).ConfigureAwait(false)).Dispose();
 }