public async Task<StripeResponse<InvoiceItem>> UpdateInvoiceItem(InvoiceItemUpdateArguments arguments,
     CancellationToken cancellationToken = default(CancellationToken))
 {
     var request = new StripeRequest<InvoiceItemUpdateArguments, InvoiceItem>
     {
         UrlPath = PathHelper.GetPath(Paths.InvoiceItems, arguments.InvoiceItemId),
         Model = arguments
     };
     return await _client.Post(request, cancellationToken);
 }
        public async Task UpdateInvoiceItemTest()
        {
            // Arrange
            var args = new InvoiceItemUpdateArguments
            {
                InvoiceItemId = "invoiceitem-id"
            };
            _stripe.Post(
                Arg.Is<StripeRequest<InvoiceItemUpdateArguments, InvoiceItem>>(
                    a => a.UrlPath == "invoiceitems/" + args.InvoiceItemId && a.Model == args), _cancellationToken)
                .Returns(Task.FromResult(new StripeResponse<InvoiceItem>()));

            // Act
            var response = await _client.UpdateInvoiceItem(args, _cancellationToken);

            // Assert
            response.Should().NotBeNull();
        }
 public void Init()
 {
     _args = GenFu.GenFu.New<InvoiceItemUpdateArguments>();
 }