{
    "cli": "lms.cli.courses.gradebook.list",
    "arguments": [
        '--course', '999',
        '--format', 'json'
    ],
}
---
{
    "assignments": [],
    "users": [],
    "scores_assignment_user": []
}

+++
<LOG_PREFIX> -- Object not found: 'course'. Identifiers: {'course_id': 999}.
<LOG_PREFIX> -- Object not found: 'course'. Identifiers: {'course_id': 999}.
