@classmethod
    def add_opts(cls, parser):
        """Populate the parser with the options for this plugin.
        """
        for opt in cls.opt_names:
            # use `BaseAuthPlugin.common_opt_names` since it is never
            # changed in child classes
            if BaseAuthPlugin.common_opt_names not in opt:
                cls._parser_add_opt(parser, opt)
dataset/ETHPy150Open openstack/python-rackclient/rackclient/openstack/common/apiclient/auth.py/BaseAuthPlugin.add_opts/swapped operands of `not in`