Event contains all the info relating to the event.

NoOpTunnelSetup by default returns false everywhere - to indicate that it is not supposed to be called and actualtunnel setup will not succeed.

Statistics shows the bytes in/out for openvpn.

EventConsumer represents an event consumer.

Logger represents the logger.

StatsConsumer consumes the bytes/in out statistics.

TunnelSetup is the interface representing the tunnel setup.