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 [35] ) - Microsoft.AspNetCore.Blazor
        UsingDirective - (140:6,1 [46] ) - Microsoft.AspNetCore.Blazor.Components
        ClassDeclaration -  - public - TestComponent - Microsoft.AspNetCore.Blazor.Components.BlazorComponent - 
            MethodDeclaration -  - protected override - void - BuildRenderTree
                CSharpCode - 
                    IntermediateToken -  - CSharp - base.BuildRenderTree(builder);
                ComponentExtensionNode - (31:1,0 [96] x:\dir\subdir\Test\TestComponent.cshtml) - MyComponent - Test.MyComponent
                    ComponentChildContent -  - ChildContent
                        HtmlContent - (76:1,45 [11] x:\dir\subdir\Test\TestComponent.cshtml)
                            IntermediateToken - (76:1,45 [11] x:\dir\subdir\Test\TestComponent.cshtml) - Html - \n    Some 
                        HtmlBlock -  - <el>further</el> content\n
                    RefExtensionNode - (49:1,18 [10] x:\dir\subdir\Test\TestComponent.cshtml) - myInstance - Test.MyComponent
                    ComponentAttributeExtensionNode -  - SomeProp - 
                        HtmlContent - (71:1,40 [3] x:\dir\subdir\Test\TestComponent.cshtml)
                            IntermediateToken - (71:1,40 [3] x:\dir\subdir\Test\TestComponent.cshtml) - Html - val
            CSharpCode - (143:5,12 [104] x:\dir\subdir\Test\TestComponent.cshtml)
                IntermediateToken - (143:5,12 [104] x:\dir\subdir\Test\TestComponent.cshtml) - CSharp - \n    private Test.MyComponent myInstance;\n    public void Foo() { System.GC.KeepAlive(myInstance); }\n
