[luabind] binding class instances to lua

[ashy a. <as...@gm...>]

I'm adding some vars to the global table like this:

     luabind::object g =3D luabind::globals( L );
     g[ "equity" ] =3D portfolio->balance();    // returns a float

This works fine for floats but i'd like to be able to do it with a class.

I have a class that is exposed to lua (so that passing it as arguments to
call_member works fine)
and i want to be able to expose an instance of it to lua.
Something like this:

MyClass myclass;

g[ "myclass" ] =3D myclass;

How would i go about doing that?
Will i need to write a template specialization for object_cast or something=
?