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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def start_to(self, ip, tcpport=102):
 """ start server on a specific interface. """

        if tcpport != 102:
            logger.info("setting server TCP port to %s" % tcpport)
            self.set_param(snap7.snap7types.LocalPort, tcpport)
        assert re.match(ipv4, ip), '%s is invalid ipv4' % ip
        logger.info("starting server to %s:102" % ip)
        return self.library.Srv_Start(self.pointer, ip)