Expression block - Gen<Expr> - 46 - (0:0,0)
    MetaCode span - Gen<None> - [(] - SpanEditHandler;Accepts:None - (0:0,0) - Symbols:1
        CSharpSymbolType.LeftParenthesis;[(];
    Code span - Gen<Expr> - [Request["description"] ?? @photo.Description] - SpanEditHandler;Accepts:Any - (1:0,1) - Symbols:11
        CSharpSymbolType.Identifier;[Request];
        CSharpSymbolType.LeftBracket;[[];
        CSharpSymbolType.StringLiteral;["description"];
        CSharpSymbolType.RightBracket;[]];
        CSharpSymbolType.WhiteSpace;[ ];
        CSharpSymbolType.NullCoalesce;[??];
        CSharpSymbolType.WhiteSpace;[ ];
        CSharpSymbolType.Transition;[@];
        CSharpSymbolType.Identifier;[photo];
        CSharpSymbolType.Dot;[.];
        CSharpSymbolType.Identifier;[Description];
    MetaCode span - Gen<None> - [)] - SpanEditHandler;Accepts:None - (45:0,45) - Symbols:1
        CSharpSymbolType.RightParenthesis;[)];
