Method try_resizable_opt

crates/vm/src/stdlib/_io.rs:4833–4836

(&self)

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

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

    #[repr(u8)]