[Vala] DBus interfaces

[Jaroslav Šmíd <dataman64bit gmail com>]

Is it possible to use vala's interface with DBus?

Let's say there already exists object in DBus with interface like this:

[DBus(Name = "org.freedesktop.Foo"]
public interface IFoo
{
  public abstract void DoFoo();
  public abstract string FooString { get; }
}

Now I want to get that object from bus and tell vala somehow that it 
implements IFoo interface.