getSearchResult method Null safety

Implementation

@override
Future<SearchResult> getSearchResult() async =>
    OpenFoodAPIClient.searchProducts(
      ProductQuery.getUser(),
      ProductSearchQueryConfiguration(
        fields: ProductQuery.fields,
        parametersList: <Parameter>[
          PageSize(size: pageSize),
          PageNumber(page: _pageNumber),
          getParameter(),
        ],
        language: ProductQuery.getLanguage(),
        country: ProductQuery.getCountry(),
      ),
    );