Document - 
    NamespaceDeclaration -  - Test
        UsingDirective - (3:1,1 [14] ) - System
        UsingDirective - (18:2,1 [34] ) - System.Collections.Generic
        UsingDirective - (53:3,1 [19] ) - System.Linq
        UsingDirective - (73:4,1 [30] ) - System.Threading.Tasks
        UsingDirective - (104:5,1 [39] ) - Microsoft.AspNetCore.Components
        ClassDeclaration -  - public partial - TestComponent - Microsoft.AspNetCore.Components.ComponentBase - 
            MethodDeclaration -  - protected override - void - BuildRenderTree
                MarkupBlock -  - <elem attributebefore="before" @KEY="someObject" attributeafter="after">Hello</elem>
            CSharpCode - (95:2,7 [49] x:\dir\subdir\Test\TestComponent.cshtml)
                IntermediateToken - (95:2,7 [49] x:\dir\subdir\Test\TestComponent.cshtml) - CSharp - \n    private object someObject = new object();\n
