Method try_resizable_opt

crates/stdlib/src/array.rs:1377–1380

(&self)

        type Resizable<'a> = PyRwLockWriteGuard<'a, ArrayContentType>;

        fn try_resizable_opt(&self) -> Option<Self::Resizable<'_>> {
            let w = self.write();
            (self.exports.load(atomic::Ordering::SeqCst) == 0).then_some(w)
        }
    }

    #[pyattr]