(self, key: str, value: Any)
Set a system attribute to the study.

        Note that Optuna internally uses this method to save system messages. Please use
        :func:`~optuna.study.Study.set_user_attr` to set users' attributes.

        Args:
            key: A key string of the attribute.
            value: A value of the attribute. The value should be JSON serializable.
Set a system attribute to the study.
Set a system attribute to the study .
def set_system_attr(self, key: str, value: Any) -> None:
        """Set a system attribute to the study.

        Note that Optuna internally uses this method to save system messages. Please use
        :func:`~optuna.study.Study.set_user_attr` to set users' attributes.

        Args:
            key: A key string of the attribute.
            value: A value of the attribute. The value should be JSON serializable.

        """

        self._storage.set_study_system_attr(self._study_id, key, value)
def set_system_attr ( self , key : str , value : Any ) -> None : self . _storage . set_study_system_attr ( self . _study_id , key , value )