* Preserve upload order * Update README.md * Fix typings and add a test * fmt code Signed-off-by: Rui Chen <rui@chenrui.dev> --------- Signed-off-by: Rui Chen <rui@chenrui.dev> Co-authored-by: Richard Davison <ridaviso@amazon.com> Co-authored-by: Rui Chen <rui@chenrui.dev>