docs: def init_argparser_package_names(self, argparser, help=(
                  'names of the python package to generate artifacts for; '
                  'note that the metadata directory for the specified '
                  'packages must be writable')):
          """
          Default helper for setting up the package_names option.
  
          This is separate so that subclasses are not assumed for the
          purposes of artifact creation; they should consider modifying
          the default help message to reflect the fact.
          """
  
          argparser.add_argument(
              'package_names', metavar=metavar('package'), nargs='+', help=help)