RazorDocument - [0..19)::19 - [@val?[null ?? true]]
    MarkupBlock - [0..19)::19
        MarkupTextLiteral - [0..0)::0 - [] - Gen<Markup> - SpanEditHandler;Accepts:Any
            Marker;[];
        CSharpCodeBlock - [0..19)::19
            CSharpImplicitExpression - [0..19)::19
                CSharpTransition - [0..1)::1 - Gen<None> - SpanEditHandler;Accepts:None
                    Transition;[@];
                CSharpImplicitExpressionBody - [1..19)::18
                    CSharpCodeBlock - [1..19)::18
                        CSharpExpressionLiteral - [1..19)::18 - [val?[null ?? true]] - Gen<Expr> - ImplicitExpressionEditHandler;Accepts:NonWhitespace;ImplicitExpression[RTD];K14
                            Identifier;[val];
                            QuestionMark;[?];
                            LeftBracket;[[];
                            Keyword;[null];
                            Whitespace;[ ];
                            NullCoalesce;[??];
                            Whitespace;[ ];
                            Keyword;[true];
                            RightBracket;[]];
        MarkupTextLiteral - [19..19)::0 - [] - Gen<Markup> - SpanEditHandler;Accepts:Any
            Marker;[];
    EndOfFile;[];
