auto-round

4655a684 - Add Google-style docstrings to calib_dataset.py and formats.py

Add Google-style docstrings to calib_dataset.py and formats.py - Add module-level docstrings to both files - Add docstrings to all public functions, methods, and classes - Document Args, Returns, and Raises for each item - No code logic changes Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>