Function headless_lms_models::exercise_slide_submissions::get_users_all_submissions_for_course_instance_or_exam

pub async fn get_users_all_submissions_for_course_instance_or_exam(
    conn: &mut PgConnection,
    user_id: Uuid,
    course_instance_id_or_exam_id: CourseInstanceOrExamId
) -> ModelResult<Vec<ExerciseSlideSubmission>>