code: def __getitem__(self, key):
      return self.avg_values[key]
  
imports: import datetime
  import glob
  import os
  import shutil
  import subprocess
  import sys
  from pathlib import Path
  import torch
label_desc: Use image node_id 2 for calling the KeepAverage obj's underlying member method code with example usage: obj.__getitem__(key) and returns: self