Add warning support

[tagliala]

What is the purpose of this pull request? (put an "X" next to item)

[ ] Documentation update [ ] Bug fix [x] New feature [ ] Other, please explain:

What changes did you make? (Give an overview)

Which issue (if any) does this pull request address?

Is there anything you'd like reviewers to focus on?

[welcome[bot]]

🙌 Thanks for opening this pull request! You're awesome.