Markup block - Gen<None> - 21 - (0:0,0)
    Markup span - Gen<Markup> - [] - SpanEditHandler;Accepts:Any - (0:0,0) - Tokens:1
        SyntaxKind.Unknown;[];
    Directive block - Gen<None> - 21 - (0:0,0)
        Transition span - Gen<None> - [@] - SpanEditHandler;Accepts:None - (0:0,0) - Tokens:1
            SyntaxKind.Transition;[@];
        MetaCode span - Gen<None> - [removeTagHelper] - SpanEditHandler;Accepts:None - (1:0,1) - Tokens:1
            SyntaxKind.Identifier;[removeTagHelper];
        Markup span - Gen<None> - [ ] - SpanEditHandler;Accepts:None - (16:0,16) - Tokens:1
            SyntaxKind.Whitespace;[ ];
        Code span - Gen<RemoveTagHelper:{Foo";Foo";;} [RZ1000(20:0,20 [1] ), RZ1019(17:0,17 [4] ), RZ1020(17:0,17 [4] )]> - [Foo"] - SpanEditHandler;Accepts:AnyExceptNewline - (17:0,17) - Tokens:2
            SyntaxKind.Identifier;[Foo];
            SyntaxKind.StringLiteral;["];RZ1000(20:0,20 [1] )
    Markup span - Gen<Markup> - [] - SpanEditHandler;Accepts:Any - (21:0,21) - Tokens:1
        SyntaxKind.Unknown;[];
