code: def downloadFromURLToFile(url, filename, show_progress=True):
      try:
          print("Downloading from {url}".format(url=url))
          response = urllib.urlopen(url)
          size = int(response.info().get("Content-Length").strip())
          chunk = min(size, 8192)
          print("Writing to {filename}".format(filename=filename))
          if show_progress:
              downloaded_size = 0
              progressBar(0)
          with open(filename, "wb") as local_file:
              while True:
                  data_chunk = response.read(chunk)
                  if not data_chunk:
                      break
                  local_file.write(data_chunk)
                  if show_progress:
                      downloaded_size += len(data_chunk)
                      progressBar(int(100 * downloaded_size / size))
          print("")  # New line to fix for progress bar
      except HTTPError as e:
          raise Exception(
              "Could not download model. [HTTP Error] {code}: {reason}.".format(
                  code=e.code, reason=e.reason
              )
          ) from e
      except URLError as e:
          raise Exception(
              "Could not download model. [URL Error] {reason}.".format(
                  reason=e.reason
              )
          ) from e
  
imports: import argparse
  import os
  import sys
  import signal
  import re
  import json
  from caffe2.proto import caffe2_pb2
  from urllib.error import HTTPError, URLError
  import urllib.request
label_desc: Use image node_id 4 for calling a global function with example usage: downloadFromURLToFile(url, filename, show_progress) without return types