Method closed

lib/sqlalchemy/engine/result.py:1022–1038

Return ``True`` if this :class:`_engine.Result` was **hard closed** by explicitly calling the :meth:`close` method. The attribute is **not** True if the :class:`_engine.Result` was only **soft closed**; a "soft close" is the style of close that takes place for exampl

(self)

    @property
    def closed(self) -> bool:
        """Return ``True`` if this :class:`_engine.Result` was **hard closed**
        by explicitly calling the :meth:`close` method.

        The attribute is **not** True if the :class:`_engine.Result` was only
        **soft closed**; a "soft close" is the style of close that takes place
        for example when the :class:`.CursorResult` is returned for a DML
        only statement without RETURNING, or when all result rows are fetched.

        .. seealso::

            :attr:`.CursorResult.returns_rows` -  attribute specific to
            :class:`.CursorResult` which indicates if the result is one that
            may return zero or more rows

        """
        raise NotImplementedError()

    @_generative
    def yield_per(self, num: int) -> Self: