public async Task <List <GetOfficeInvoiceLineItemsModel> > HandleAsync(GetOfficeInvoiceLineItemsUseCase data)
            {
                var invoiceItems = await CspClient.GetInvoiceByIdAsync(data.InvoiceId);

                var link = invoiceItems.InvoiceDetailLinks.FirstOrDefault(x => x.Contains($"{nameof(Common.Enums.BillingProvider.Office)}/BillingLineItems"));

                if (string.IsNullOrEmpty(link))
                {
                    return(null);
                }

                return(Mapper.Map <List <GetOfficeInvoiceLineItemsModel> >(await CspClient.GetOfficeInvoiceLineItemsAsync(link)));
            }