code: def _download_file(self, dest, path):
      base, filename = os.path.split(path)
  
      dest_dir = os.path.join(dest, base)
      os.makedirs(dest_dir, exist_ok=True)
  
      dest_path = os.path.join(dest_dir, filename)
  
      print("Downloading {} to {}".format(path, dest_path))
  
      url = f"{self.URL_ROOT}/{path}"
      self._download_url(url, dest_path)
  
imports: import argparse
  import concurrent.futures
  import functools
  import json
  import os
  import random
  import re
  import subprocess
  import time
  import urllib.request
label_desc: Use image node_id 3 for calling the Downloader obj's underlying member method code with example usage: obj._download_file(dest, path) without return types