ServiceDiscoveryAnnouncer (venice API)

All Known Implementing Classes:

AsyncRetryingServiceDiscoveryAnnouncer, D2Server
```
public interface ServiceDiscoveryAnnouncer
```
This interface is used to announce the service to a Service Discovery system on startup and de-announce the service on graceful shutdown. The Service Discovery system should gracefully handle de-announcing in case of crash-failures.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`register()`	Register the instance with the service discovery system.
`void`	`unregister()`	Unregister the instance from the service discovery system.

- Method Detail
  - register
```
void register()
```
    Register the instance with the service discovery system.
  - unregister
```
void unregister()
```
    Unregister the instance from the service discovery system.