Add hint support

[dreamz12345]

Hello,
I added Hint support and tests. I also fixed a linter warning. The code seems to go through github actions.

[coveralls]

Pull Request Test Coverage Report for Build 12729342108

Warning: This coverage report may be inaccurate.

This pull request's base commit is no longer the HEAD commit of its target branch. This means it includes changes from outside the original pull request, including, potentially, unrelated coverage changes.

• For more information on this, see Tracking coverage changes with pull request builds.
• To avoid this issue with future PRs, see these Recommended CI Configurations.
• For a quick fix, rebase this PR at GitHub. Your next report should be accurate.

Details

• 3 of 3 (100.0%) changed or added relevant lines in 1 file are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.002%) to 99.611%

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Totals
Change from base Build 10686588893:	0.002%
Covered Lines:	768
Relevant Lines:	771

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💛 - Coveralls

[liran-funaro]

Thanks for the PR. It looks good.
Please fix this minor issue and I'll merge your PR.