Function headless_lms_models::exercise_slide_submissions::get_exercise_slide_submission_counts_for_exercise_user

pub async fn get_exercise_slide_submission_counts_for_exercise_user(
    conn: &mut PgConnection,
    exercise_id: Uuid,
    course_instance_id_or_exam_id: CourseInstanceOrExamId,
    user_id: Uuid
) -> ModelResult<HashMap<Uuid, i64>>