protected override Expression <Func <DocumentationCommentAttributeListAssociation, bool> > FindExisting(DocumentationCommentAttributeListAssociation record)
 => existing
 => existing.DocumentationCommentAttributeId == record.DocumentationCommentAttributeId &&
 existing.DocumentationCommentAttributeListId == record.DocumentationCommentAttributeListId;
        protected override IEnumerable <object> EnumerateReferences(DocumentationCommentAttributeListAssociation record)
        {
            yield return(record.DocumentationCommentAttribute);

            yield return(record.DocumentationCommentAttributeList);
        }