- Added `PyInterval` type handling in `shorten.py`.
- Corrected table style reference in `snap_file.py`.
- Upgraded version in `pyproject.toml` to 1.0.3.
- Appended print statement in `test_alignments.py`.

This update streamlines code comprehensibility and resolves a style
handling issue. Moreover, the package version bump ensures future
dependency management benefits.