In order to accept your pull request or patch, we need you to submit a CLA. You only need to do this once, so if you've done this at https://cla.rongyi.io for another open source project, you're good to go. If you are submitting a pull request for the first time, just let us know that you have completed the CLA and we can cross-check with your GitHub username. If you are sending a patch over email, please use the address which you have signed the CLA with.
Complete your CLA here: https://cla.rongyi.io or send an email signing the CLA.md document.
By contributing to {Project Name}, you agree that your contributions will be licensed under the Apache License Version 2.0 (APLv2).