Support for internal types in models?

[lassevk]

Is there an InternalsVisibleTo attribute I can tag my own projects with to make internal types visible for the compiler when compiling the model?

I am trying to hide implementation as much as possible, but out of the box I need to make the model types public, or I get a compiler error about unable to find the types involved.

I know other systems, such as LINQPad, has a fixed assembly name that can be used in InternalsVisibleTo, but I can't find anything specific in the source.