def process(self, obj, meta):
        s_banner = obj["banner"][4:]
        if s_banner in "Postfix":
            meta.local_metadata.product = "Postfix"
            return meta
        elif "Sendmail" in s_banner:
            meta.local_metadata.product = "Sendmail"
            return meta
        elif "Exim" in s_banner:
            meta.local_metadata.product = "Exim"
            return meta
        elif "gsmtp" in s_banner:
            meta.local_metadata.manufacturer = "Google"
            meta.local_metadata.product = "SMTP"
            return meta
dataset/ETHPy150Open zmap/ztag/ztag/annotations/common_smtp.py/CommonSMTP.process/swapped operands of `in`