Function headless_lms_models::library::user_exercise_state_updater::data_loader::load_user_exercise_slide_state_grading_summary

async fn load_user_exercise_slide_state_grading_summary(
    conn: &mut PgConnection,
    user_exercise_slide_state_grading_summary: Option<UserExerciseSlideStateGradingSummary>,
    loaded_user_exercise_state: &UserExerciseState
) -> ModelResult<UserExerciseSlideStateGradingSummary>