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 - (1:0,1 [40] x:\dir\subdir\Test\TestComponent.cshtml) - Microsoft.AspNetCore.Components
        ClassDeclaration -  - public partial - TestComponent - Microsoft.AspNetCore.Components.ComponentBase -  - TItem1, TItem2, TItem3
            MethodDeclaration -  - protected override - void - BuildRenderTree
                MarkupBlock -  - <h1>Item1</h1>
                CSharpCode - (186:6,1 [34] x:\dir\subdir\Test\TestComponent.cshtml)
                    LazyIntermediateToken - (186:6,1 [34] x:\dir\subdir\Test\TestComponent.cshtml) - CSharp - foreach (var item2 in Items2)\n{\n
                MarkupElement - (224:8,4 [40] x:\dir\subdir\Test\TestComponent.cshtml) - p
                    CSharpExpression - (234:9,5 [19] x:\dir\subdir\Test\TestComponent.cshtml)
                        LazyIntermediateToken - (234:9,5 [19] x:\dir\subdir\Test\TestComponent.cshtml) - CSharp - ChildContent(item2)
                    HtmlContent - (253:9,24 [7] x:\dir\subdir\Test\TestComponent.cshtml)
                        LazyIntermediateToken - (253:9,24 [7] x:\dir\subdir\Test\TestComponent.cshtml) - Html - ;\n    
                CSharpCode - (266:11,0 [3] x:\dir\subdir\Test\TestComponent.cshtml)
                    LazyIntermediateToken - (266:11,0 [3] x:\dir\subdir\Test\TestComponent.cshtml) - CSharp - }\n
                MarkupBlock -  - <p>Item3</p>
            CSharpCode - (294:15,7 [236] x:\dir\subdir\Test\TestComponent.cshtml)
                LazyIntermediateToken - (294:15,7 [236] x:\dir\subdir\Test\TestComponent.cshtml) - CSharp - \n    [Parameter] public TItem1 Item1 { get; set; }\n    [Parameter] public List<TItem2> Items2 { get; set; }\n    [Parameter] public TItem3 Item3 { get; set; }\n    [Parameter] public RenderFragment<TItem2> ChildContent { get; set; }\n
