docs: def setup(**kwargs):
      """Custom setup() function, inserting our custom classes."""
  
      cmdclass = kwargs.setdefault('cmdclass', {})
      cmdclass['easy_install'] = easy_install
      cmdclass['install'] = install
      cmdclass['register'] = register
      cmdclass['upload'] = upload
      cmdclass['upload_docs'] = upload_docs
      return setuptools.setup(**kwargs)