docs: def register_arguments(cls, parser):
          """Register command line options.
  
          Implement this method for normal options behavior with protection from
          OptionConflictErrors. If you override this method and want the default
          --$name option(s) to be registered, be sure to call super().
          """
          if hasattr(cls, "_dont_register_arguments"):
              return
          prefix = cls.configuration_key_prefix()
          cfgkey = cls.configuration_key
          parser.add_argument("--%s-%s" % (prefix, cfgkey),
                              action="store_true",
                              dest="%s_%s" % (prefix, cfgkey),
                              default=False,
                              help="%s: %s" %
                              (cls.__name__, cls.help()))
          args = cls.init_argnames()
          defaults = cls._init_argdefaults()
          for arg in args[0:len(args) - len(defaults)]:
              parser.add_argument("--%s-%s-%s" % (prefix, cfgkey, arg),
                                  dest="%s_%s_%s" % (prefix, cfgkey, arg),
                                  help="")
          for i, arg in enumerate(args[len(args) - len(defaults):]):
              parser.add_argument("--%s-%s-%s" % (prefix, cfgkey, arg),
                                  dest="%s_%s_%s" % (prefix, cfgkey, arg),
                                  default=defaults[i],
                                  help="default: %(default)s")