def _sendTo(self, proto):
        """
        Send my encoded value to the protocol, then initiate TLS.
        """
        ab = AmpBox(self)
        for k in [b'tls_localCertificate',
                  b'tls_verifyAuthorities']:
            ab.pop(k, None)
        ab._sendTo(proto)
        proto._startTLS(self.certificate, self.verify)

        Send my encoded value to the protocol, then initiate TLS.
        
stackoverflow/venv/lib/python3.6/site-packages/twisted/protocols/amp.py