protected override Expression <Func <MsBuildTargetListAssociation, bool> > FindExisting(MsBuildTargetListAssociation record)
 => existing
 => existing.MsBuildTargetId == record.MsBuildTargetId &&
 existing.MsBuildTargetListId == record.MsBuildTargetListId;
        protected override IEnumerable <object> EnumerateReferences(MsBuildTargetListAssociation record)
        {
            yield return(record.MsBuildTarget);

            yield return(record.MsBuildTargetList);
        }