def register_config(self, cls, name):
        """
        register a configuration class
        :param cls:
        :param name:
        :return:
        """
        self._configs.add(cls)
        self._config_names.add(name)
def register_config ( self , cls , name ) : self . _configs . add ( cls ) self . _config_names . add ( name )
register a configuration class
        :param cls:
        :param name:
        :return: