def test_liveFireDefaultTLS(self):
        """
        Verify that out of the box, we can start TLS to at least encrypt the
        connection, even if we don't have any certificates to use.
        """
        def secured(result):
            return self.cli.callRemote(SecuredPing)
        return self.cli.callRemote(amp.StartTLS).addCallback(secured)

        Verify that out of the box, we can start TLS to at least encrypt the
        connection, even if we don't have any certificates to use.
        
stackoverflow/venv/lib/python3.6/site-packages/twisted/test/test_amp.py