code: @Override
      protected BaseContext createContext() {
          AppContextImpl context = getAppContext();
          RoomContextImpl answer = new RoomContextImpl();
          answer.init(context, getClass());
          return answer;
      }
docs: /*
  (non-Javadoc)
  @see com.tvd12.ezyfox.sfs2x.extension.BaseExtension#createContext()