private Item ImportItem(ImportItemInfo item)
 {
     try
     {
         ITopClient     client = GetProductTopClient();
         ItemGetRequest req    = new ItemGetRequest();
         req.Fields = TopFieldsHelper.GetItemFields_All();
         req.Iid    = item.ImportFormItemIid;
         req.Nick   = item.ImportFormSellerNick;
         Item topItem = client.Execute <Item>(req, new ItemJsonParser());
         ImportItem(topItem);
         return(topItem);
     }
     catch (Exception ex)
     {
         throw ex;
     }
 }