def startTLS(self):
        if self.ctx is None:
            self.getContext()

        if SSL_SUPPORT and self.ctx is not None:
            self.sendLine('+OK Begin TLS negotiation now')
            self.transport.startTLS(self.ctx)
        else:
            self.sendLine('-ERR TLS not available')
dataset/ETHPy150Open kuri65536/python-for-android/python-modules/twisted/twisted/mail/test/pop3testserver.py/POP3TestServer.startTLS/original