public Auction GetAuction(Guid id)
        {
            id.ThrowIfNull("id");

            var getAuctionQuery = _getAuctionQueryFactory.Create();
            getAuctionQuery.Id = id;

            return getAuctionQuery.Execute();
        }
        public void EndAuction(Guid id)
        {
            id.ThrowIfNull("id");

            GetAuction(id).EndAuction();
        }