/// <summary>
/// Gets a URL to download an invoice. The operation is supported for billing
/// accounts with agreement type Microsoft Partner Agreement or Microsoft
/// Customer Agreement.
/// <see href="https://docs.microsoft.com/en-us/rest/api/billing/" />
/// </summary>
/// <param name='operations'>
/// The operations group for this extension method.
/// </param>
/// <param name='billingAccountName'>
/// The ID that uniquely identifies a billing account.
/// </param>
/// <param name='invoiceName'>
/// The ID that uniquely identifies an invoice.
/// </param>
/// <param name='downloadToken'>
/// Download token with document source and document ID.
/// </param>
/// <param name='cancellationToken'>
/// The cancellation token.
/// </param>
public static async Task <DownloadUrl> DownloadInvoiceAsync(this IInvoicesOperations operations, string billingAccountName, string invoiceName, string downloadToken, CancellationToken cancellationToken = default(CancellationToken))
{
using (var _result = await operations.DownloadInvoiceWithHttpMessagesAsync(billingAccountName, invoiceName, downloadToken, null, cancellationToken).ConfigureAwait(false))
{
return(_result.Body);
}
}