public EbayOrdersListModel(IEnumerable <EbayOrdersListItemModel> items, int page, int perPage)
        {
            Total  = items.Count();
            Page   = page;
            Orders = items;

            Pagination = new PaginationModel(items.Count(), page, perPage);
        }
        public EbayOrdersListModel(GetOrdersResponseModel data, int page, int perPage)
        {
            Total  = data.total;
            Page   = page;
            Orders = data.orders.Select(x => new EbayOrdersListItemModel(x));

            Pagination = new PaginationModel(data.total, page, perPage);
        }