def __del_frozen(self):
        """
        Removes _frozen attribute from this instance and all its child configurations.
        """
        self.__delattr__('_frozen')
        for attr, val in self.__dict__.items():
            if isinstance(val, Config) and hasattr(val, '_frozen'):
                val.__del_frozen()
def __del_frozen ( self ) : self . __delattr__ ( '_frozen' ) for attr , val in self . __dict__ . items ( ) : if isinstance ( val , Config ) and hasattr ( val , '_frozen' ) : val . __del_frozen ( )
Removes _frozen attribute from this instance and all its child configurations.