private static List <VentaDTO> SendPage(APIMethods api, List <VentaDTO> ventaList, double pageSize, double pageTop, int page)
        {
            List <VentaDTO> ventaListPage = null;

            ventaListPage = ExtractPage(ventaList, pageSize, pageTop, page);

            var ventaListJson = new VentaDTOBatch
            {
                Ventas = ventaListPage
            };

            api.PostVentaBatch(ventaListJson);
            return(ventaListPage);
        }