def _new_conn(self):
        """
        Return a fresh :class:`httplib.HTTPSConnection`.
        """
        self.num_connections += 1
        log.info("Starting new HTTPS connection (%d): %s"
                 % (self.num_connections, self.host))

        if not ssl:
            return HTTPSConnection(host=self.host, port=self.port)

        connection = VerifiedHTTPSConnection(host=self.host, port=self.port)
        connection.set_cert(key_file=self.key_file, cert_file=self.cert_file,
                            cert_reqs=self.cert_reqs, ca_certs=self.ca_certs)
        return connection
Return a fresh :class:`httplib.HTTPSConnection`.