Pull Request description

This pull request is a bug fix for issues that were pointed by the linter.

Issue #8

How to test these changes

• ...

Pull Request checklists

This PR is a:

• bug-fix

About this PR:

• pre-commit hooks were executed locally.

Author's checklist:

• I have reviewed the changes and it contains no misspelling.
• The code is well commented, especially in the parts that contain more
  complexity.
• New and old tests passed locally.

Additional information

Reviewer's checklist

Copy and paste this template for your review's note:

## Reviewer's Checklist

- [ ] I managed to reproduce the problem locally from the `main` branch
- [ ] I managed to test the new changes locally
- [ ] I confirm that the issues mentioned were fixed/resolved