040000 tree 0cf9d9cb2c3fa187476286b9ccdb7d9c6b4d6a78	fixed_time_window
100644 blob 3f7c54978577c6c0cc9e8d42c270e0a09c0de290	lesson-info.yaml
100644 blob 935f5d3fc00e139157430d237a6dbda4a2bf0015	lesson-remote-info.yaml