pub fn variadic_vals<T>(&'a mut self) -> Vec<T>
    where
        T: FromZvalMut<'a>,
    {
        self.variadic_zvals
            .iter_mut()
            .filter_map(|zv| zv.as_mut())
            .filter_map(|zv| T::from_zval_mut(zv.dereference_mut()))
            .collect()
    }
Retrice all the variadic values for this Rust argument.
src/args.rs