code: def download_urls_sequential(urls, timeout=60):
      url_to_content = {}
      for url in urls:
          try:
              url_to_content[url] = load_url(url, timeout=timeout)
          except:
              pass
      return url_to_content
  
imports: import sys
  import time
  import functools
  from mpi4py.futures import MPIPoolExecutor, as_completed
label_desc: Use image node_id 2 for calling a global function with example usage: download_urls_sequential(urls, timeout) and returns: url_to_content