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
                CSharpCode - (2:0,2 [46] x:\dir\subdir\Test\TestComponent.cshtml)
                    IntermediateToken - (2:0,2 [46] x:\dir\subdir\Test\TestComponent.cshtml) - CSharp -  RenderFragment<string> header = (context) => 
                Template - (49:0,49 [38] x:\dir\subdir\Test\TestComponent.cshtml)
                    MarkupElement - (49:0,49 [38] x:\dir\subdir\Test\TestComponent.cshtml) - div
                        CSharpExpression - (55:0,55 [26] x:\dir\subdir\Test\TestComponent.cshtml)
                            IntermediateToken - (55:0,55 [26] x:\dir\subdir\Test\TestComponent.cshtml) - CSharp - context.ToLowerInvariant()
                CSharpCode - (87:0,87 [2] x:\dir\subdir\Test\TestComponent.cshtml)
                    IntermediateToken - (87:0,87 [2] x:\dir\subdir\Test\TestComponent.cshtml) - CSharp - ; 
                Component - (92:1,0 [62] x:\dir\subdir\Test\TestComponent.cshtml) - MyComponent
                    ComponentChildContent -  - ChildContent - context
                        HtmlContent - (120:1,28 [20] x:\dir\subdir\Test\TestComponent.cshtml)
                            IntermediateToken - (120:1,28 [20] x:\dir\subdir\Test\TestComponent.cshtml) - Html - \n    Some Content\n
                    ComponentAttribute - (112:1,20 [7] x:\dir\subdir\Test\TestComponent.cshtml) - Header - Header - AttributeStructure.DoubleQuotes
                        CSharpExpression - (113:1,21 [6] x:\dir\subdir\Test\TestComponent.cshtml)
                            IntermediateToken - (113:1,21 [6] x:\dir\subdir\Test\TestComponent.cshtml) - CSharp - header
