/// <summary>
 /// Undelete a deleted storage account with new account name if the a new name
 /// is provided.
 /// </summary>
 /// <param name='operations'>
 /// The operations group for this extension method.
 /// </param>
 /// <param name='location'>
 /// Resource location.
 /// </param>
 /// <param name='accountId'>
 /// Internal storage account ID, which is not visible to tenant.
 /// </param>
 /// <param name='newAccountName'>
 /// New storage account name when doing undelete storage account operation.
 /// </param>
 /// <param name='cancellationToken'>
 /// The cancellation token.
 /// </param>
 public static async Task <UndeleteStorageAccount> BeginUndeleteAsync(this IStorageAccountsOperations operations, string location, string accountId, string newAccountName = default(string), CancellationToken cancellationToken = default(CancellationToken))
 {
     using (var _result = await operations.BeginUndeleteWithHttpMessagesAsync(location, accountId, newAccountName, null, cancellationToken).ConfigureAwait(false))
     {
         return(_result.Body);
     }
 }