RazorDocument - [0..19)::19 - [@using Foo.Bar.Baz;]
    MarkupBlock - [0..19)::19
        MarkupTextLiteral - [0..0)::0 - [] - Gen<Markup>
            Marker;[];
        CSharpCodeBlock - [0..19)::19
            RazorDirective - [0..19)::19
                CSharpTransition - [0..1)::1 - Gen<None>
                    Transition;[@];
                RazorDirectiveBody - [1..19)::18
                    CSharpStatementLiteral - [1..19)::18 - [using Foo.Bar.Baz;] - Gen<Import: Foo.Bar.Baz;>
                        Keyword;[using];
                        Whitespace;[ ];
                        Identifier;[Foo];
                        Dot;[.];
                        Identifier;[Bar];
                        Dot;[.];
                        Identifier;[Baz];
                        Semicolon;[;];
        MarkupTextLiteral - [19..19)::0 - [] - Gen<Markup>
            Marker;[];
    EndOfFile;[];
