Enables forwarding of tracing
events towards the fluentd
server.
Version corresponds to tracing
version.
```rust use tracing_subscriber::layer::SubscriberExt;
let layer = tracingfluentd::Builder::new("rust").flatten().layer().expect("Create layer"); let sub = tracingsubscriber::Registry::default().with(layer); let guard = tracing::subscriber::set_default(sub); ```