GetShoppingCartTotalWeight method is missing from shippingService.cs file

Hi,
Today i upgraded Nop from 3.10 to 3.40 and everything is okay, i made some customizations on shippingService.cs file in v 3.10 in GetShoppingCartTotalWeight method. but in the new v 3.40 this method is not exist !! can you help please.
Thanks

name changed

        /// <summary>
        /// Gets shopping cart weight
        /// </summary>
        /// <param name="cart">Cart</param>
        /// <param name="includeCheckoutAttributes">A value indicating whether we should calculate weights of selected checkotu attributes</param>
        /// <returns>Shopping cart weight</returns>
        decimal GetTotalWeight(IList<ShoppingCartItem> cart, bool includeCheckoutAttributes = true);

Thanks a lot , i didn't notice that.