private ResponseClass DeserializeSearchItems(Guid sessionID, double?filterItemRank, double?filterMinPrice, double?filterMaxPrice, double?filterStoreRank, string name, string category, string keywords)
        {
            string        jsonAnswer = marketFacade.SearchItems(sessionID, filterItemRank, filterMinPrice, filterMaxPrice, filterStoreRank, name, category, keywords);
            ResponseClass response   = JsonConvert.DeserializeObject <ResponseClass>(jsonAnswer);

            return(response);
        }