v1.LessonSaveReq

{
    "assistant_teacher_id": "assistant001",
    "course_id": "course123",
    "first_join_time": 1640994900,
    "id": 0,
    "lesson_name": "第一课时 课程介绍",
    "lesson_type": 1,
    "live_end_time": 1640998800,
    "live_start_time": 1640995200,
    "material_id": 123456,
    "publish_time": 1640995200,
    "sort": 0,
    "student_id": "student001",
    "teacher_id": "teacher001",
    "trial_duration": 10,
    "unit_id": 1
}