Markup block - Gen<None> - 60 - (0:0,0)
    Tag block - Gen<TagHelper> - 60 - (0:0,0) - input - inputtaghelper
        SelfClosing - <input data-required='@DateTime.Now middle @DateTime.Now' />
        data-required - SingleQuotes
            Markup block - Gen<None> - 34 - (22:0,22)
                Expression block - Gen<Expr> - 13 - (22:0,22)
                    Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (22:0,22) - Tokens:1
                        CSharpTokenType.Transition;[@];
                    Code span - Gen<Expr> - [DateTime.Now] - ImplicitExpressionEditHandler;Accepts:NonWhiteSpace;ImplicitExpression[RTD];K14 - (23:0,23) - Tokens:3
                        CSharpTokenType.Identifier;[DateTime];
                        CSharpTokenType.Dot;[.];
                        CSharpTokenType.Identifier;[Now];
                Markup span - Gen<Markup> - [ middle ] - SpanEditHandler;Accepts:Any - (35:0,35) - Tokens:3
                    HtmlTokenType.WhiteSpace;[ ];
                    HtmlTokenType.Text;[middle];
                    HtmlTokenType.WhiteSpace;[ ];
                Expression block - Gen<Expr> - 13 - (43:0,43)
                    Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (43:0,43) - Tokens:1
                        CSharpTokenType.Transition;[@];
                    Code span - Gen<Expr> - [DateTime.Now] - ImplicitExpressionEditHandler;Accepts:NonWhiteSpace;ImplicitExpression[RTD];K14 - (44:0,44) - Tokens:3
                        CSharpTokenType.Identifier;[DateTime];
                        CSharpTokenType.Dot;[.];
                        CSharpTokenType.Identifier;[Now];
