pub async fn get_user_course_instance_chapter_metrics(
conn: &mut PgConnection,
course_instance_id: Uuid,
exercise_ids: &[Uuid],
user_id: Uuid,
) -> ModelResult<UserChapterMetrics>
pub async fn get_user_course_instance_chapter_metrics(
conn: &mut PgConnection,
course_instance_id: Uuid,
exercise_ids: &[Uuid],
user_id: Uuid,
) -> ModelResult<UserChapterMetrics>