Yes, I'm well aware of the other questions like this, but the other (almost the same) question is for an older version of NLua.
Making the question simple, how do I completely sandbox Nlua? I want a single class Foo to be the only class available to Nlua. How can I do this, either C# side or Lua side?
Note
Foo will have methods that use other namespaces, I don't think it matters though.