- Bumped version to 2.0.0 in pyproject.toml and updated dependencies.
- Expanded README.md to reflect new features, including comprehensive tools for chat, group, and contact management.
- Added new functionalities for managing contacts, messages, and user profiles.
- Updated .gitignore to include .DS_Store files.
- Improved error handling and messaging in main.py.
- Enhanced overall documentation and usage examples for better user guidance.
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