Worked on the python/typeshed repository to improve the accuracy and maintainability of type hints in Python codebases. Focused on correcting the typing of the _Params.paths attribute to better reflect its actual runtime behavior, changing it from a string to a dictionary or None. This adjustment reduced false positives in parameter handling for downstream projects such as yt-dlp, ensuring that static analysis aligns with real-world usage. Collaborated closely with other contributors to maintain code quality and correctness. Utilized Python and type hinting expertise to support reliable static typing, ultimately enhancing the robustness of the repository for the broader Python ecosystem.