code: def download(self):
      for item in self.download_urls:
          url = item
          file = self.download_urls[item]
  
          logging.info("Downloading: %s", url)
          if os.path.isfile(self.save_path + "/" + file):
              logging.info(
                  "** Download file already exists, skipping download"
              )
          else:
              response = urllib.request.urlopen(url)
              with open(self.save_path + "/" + file, "wb") as handle:
                  handle.write(response.read())
  
imports: import argparse
  import os
  import urllib.request
  from nemo.utils import logging
label_desc: Use image node_id 2 for calling the SquadDownloader obj's underlying member method code with example usage: obj.download() without return types