code: def get_history(self):
      return self.history
  
imports: import atexit
  import json
  import os
  import shutil
  import time
  from typing import Dict, List
  import matplotlib.colors
  import matplotlib.pyplot
  import torch
  import torch.distributed
label_desc: Use image node_id 4 for calling the Recorder obj's underlying member method code with example usage: obj.get_history() and returns: self