# io.github.libtmux.ServerConfig.Builder.observer

- **Module:** io.github.libtmux
- **Package:** io.github.libtmux:libtmux
- **Language:** Java
- **Kind:** method
- **Source:** https://github.com/libtmux/libtmux-java/blob/c067fced0dfd19bd6dd3d260e9d4c336becdb063/libtmux/src/main/java/io/github/libtmux/ServerConfig.java#L207
- **Page:** https://libtmux.org/en/java/latest/reference/io-github-libtmux-serverconfig-serverconfig-builder-observer/

```
public Builder observer(OperationObserver observer)
```

Receives a report after each command. The report names verbs, not arguments.

## Parameters

- `observer` (`OperationObserver`)