New Post: Composite.Generated.dll doesn't show in Assembly references.. for a C# inline Function.

I want to get a page type Object defined in the page Datafolders optin
in C# function that i Created,
But i don t have the option to add the Composite.Generated.dll that have the data types
Also i add the these directives with no luck using Composite.Data; , using Composite.Data.Types;

so this error shows.

CODE : Expression<Func<NewsItemPrivate, bool>> filter = f => f.PageId == currentPageId;

ERROR : The type or namespace name 'NewsItemPrivate' could not be found (are you missing a using directive or an assembly reference?).