Document - 
    Checksum - 
    NamespaceDeclaration -  - Microsoft.AspNetCore.Razor.Language.IntegrationTests.TestFiles
        ClassDeclaration -  - public - TestFiles_IntegrationTests_CodeGenerationIntegrationTest_AddTagHelperDirective_DesignTime -  - 
            DesignTimeDirective - 
                DirectiveToken - (14:0,14 [17] AddTagHelperDirective.cshtml) - "*, TestAssembly"
            CSharpStatement - 
                RazorIRToken -  - CSharp - private static System.Object __o = null;
            MethodDeclaration -  - public - async - System.Threading.Tasks.Task - ExecuteAsync
                HtmlContent - (31:0,31 [2] AddTagHelperDirective.cshtml)
                    RazorIRToken - (31:0,31 [2] AddTagHelperDirective.cshtml) - Html - \n
