def HandleVerack(self):
        """Handle the `verack` response."""
        m = Message('verack')
        self.SendSerializedMessage(m)
        self.leader.NodeCount += 1
        self.identifier = self.leader.NodeCount
        logger.debug(f"{self.prefix} Handshake complete!")
        self.handshake_complete = True
        self.ProtocolReady()
Handle the `verack` response.