/// <summary>
 /// List of invoices for a billing account.
 /// </summary>
 /// <param name='operations'>
 /// The operations group for this extension method.
 /// </param>
 /// <param name='billingAccountName'>
 /// billing Account Id.
 /// </param>
 /// <param name='periodStartDate'>
 /// Invoice period start date.
 /// </param>
 /// <param name='periodEndDate'>
 /// Invoice period end date.
 /// </param>
 /// <param name='cancellationToken'>
 /// The cancellation token.
 /// </param>
 public static async Task <InvoiceListResult> ListByBillingAccountNameAsync(this IInvoicesOperations operations, string billingAccountName, string periodStartDate, string periodEndDate, CancellationToken cancellationToken = default(CancellationToken))
 {
     using (var _result = await operations.ListByBillingAccountNameWithHttpMessagesAsync(billingAccountName, periodStartDate, periodEndDate, null, cancellationToken).ConfigureAwait(false))
     {
         return(_result.Body);
     }
 }