def change_lang(self, lang):
        """
        Change language

        Args:
            lang: language to be set

        Returns:
            None

        """
        lang_list = ['zh', 'en', 'fr', 'de', 'it', 'ja', 'ko', ]
        self.device_op("changeLanguge", f"--LANGUAGE_OP {lang}")

        Change language

        Args:
            lang: language to be set

        Returns:
            None

        
airtest/core/android/yosemite_ext.py