def build_builtin_command(self):
        com = Command('builtins', 'Go to builtin commands menu')
        def _run(*args, **kwargs):
            self.put("""
Commands can conditionally lead the user to other menus.
This demo app has two menus defined: the main menu and the built-in commands menu.
The command you just ran has defined the attribute self.new_menu to point to the
builtins menu.

Notice that the options menu has changed to reflect the new commands available in this menu.
            """)
            return constants.CHOICE_VALID
        com.run = _run
        com.new_menu = 'builtins'
        return com