code: def _download_classifiers() -> str:
      import ssl
      from email.message import Message
      from urllib.request import urlopen
  
      url = "https://pypi.org/pypi?:action=list_classifiers"
      context = ssl.create_default_context()
      with urlopen(url, context=context) as response:
          headers = Message()
          headers["content_type"] = response.getheader(
              "content-type", "text/plain"
          )
          return response.read().decode(
              headers.get_param("charset", "utf-8")
          )
  
imports: import logging
  import os
  import re
  import string
  import typing
  from itertools import chain
label_desc: Use image node_id 5 for calling a global function with example usage: _download_classifiers() and returns: response