public async Task Test_GetProductList()
        {
            List <ProductEntity> productList = new List <ProductEntity>();

            productList = await prServices.GetProductListAsync("api/product/getList");

            //TODO: Add asserts!
        }
        static async Task RunAsync()
        {
            AsyncProductServices services = new AsyncProductServices();

            productList = await services.GetProductListAsync();
        }