Update app.py

app.py

@@ -1,19 +1,4 @@
-# -*- coding: utf-8 -*-
-"""Copy of HW1 (more instructed).ipynb
-
-Automatically generated by Colab.
-
-Original file is located at
-    https://colab.research.google.com/drive/1uy6BymqQBd7cZEdeuthBDiA0ARXHc1SV
-"""
-
-"""## Pre-requisite code
-
-The code within this section will be used in the tasks. Please do not change these code lines.
-
-### SciQ loading and counting
-"""
-
+from __future__ import annotations
 from dataclasses import dataclass
 import pickle
 import os