code: def get_latest_file(path):
      """Return the file named 'path_[0-9]*' with the largest such number.
  
      Args:
        path: The base path (including directory and base name) to search.
  
      Returns:
        The latest file (in terms of given numbers).
      """
      try:
          latest_iteration = get_latest_iteration(path)
          return os.path.join(
              path, "{}_{}".format(FILE_PREFIX, latest_iteration)
          )
      except ValueError:
          return None
  
file_path: dopamine/dopamine/colab/utils.py
imports: import itertools
  import os
  import pickle
  import sys
  import numpy
  import pandas
  import tensorflow
label_desc: Use image node_id 3 for calling a global function with example usage: get_latest_file(path) and returns: os, None