def connectionMade(self):
        """
        Called when the connection is started with the server.  Just sets
        up a private instance variable.
        """
        SSHTransportBase.connectionMade(self)
        self._gotNewKeys = 0

        Called when the connection is started with the server.  Just sets
        up a private instance variable.
        
stackoverflow/venv/lib/python3.6/site-packages/twisted/conch/ssh/transport.py