Hello, I have a question about your Config::General and its two subclasses. Is it possible to use the Config::General::Extended interface with config files that contain variables? It seemed to me that, to have variables/substitutions, one needs to use the Config::General::Interpolated module, which is not subclassed by Config::General::Extended. However, I was wondering if you'd spent any time thinking about the case of using both variables and the OO interface. Thanks!