pub async fn create_best_peer_review(
    conn: &mut PgConnection,
    course_id: Uuid,
    exercise_id: Uuid,
    processing_strategy: PeerReviewProcessingStrategy,
    accepting_threshold: f32,
    points_are_all_or_nothing: bool,
    peer_reviews_to_give: i32,
    peer_reviews_to_receive: i32
) -> Result<()>