Resets values of the call setup.

        :return:

def _reset(self):
        '''
        Resets values of the call setup.

        :return:
        '''
        self.__cmd = ['zypper', '--non-interactive']
        self.__exit_code = 0
        self.__call_result = dict()
        self.__error_msg = ''
        self.__env = salt.utils.environment.get_module_environment(globals())

        # Call config
        self.__xml = False
        self.__no_lock = False
        self.__no_raise = False
        self.__refresh = False
        self.__ignore_repo_failure = False
        self.__systemd_scope = False
        self.__root = None

        # Call status
        self.__called = False