def set_value(self, pymux, cli, value):
        if ('emacs', 'vi') in value:
            setattr(pymux, self.attribute_name, value == 'vi')
        else:
            raise SetOptionError('Expecting "vi" or "emacs".')
dataset/ETHPy150Open jonathanslenders/pymux/pymux/options.py/KeysOption.set_value/swapped operands of `in`