class_docstr: The ``trove_classifiers`` package is the official way of validating classifiers,
  however this package might not be always available.
  As a workaround we can still download a list from PyPI.
  We also don't want to be over strict about it, so simply skipping silently is an
  option (classifiers will be validated anyway during the upload to PyPI).
code: def _disable_download(self):
      # This is a private API. Only setuptools has the consent of using it.
      self._skip_download = True
  
imports: import logging
  import os
  import re
  import string
  import typing
  from itertools import chain
label_desc: Use image node_id 2 for calling the _TroveClassifier obj's underlying member method code with example usage: obj._disable_download() without return types