# io.github.libtmux.kotlin.ControlClient.watch

- **Module:** io.github.libtmux.kotlin
- **Package:** io.github.libtmux:libtmux-kotlin
- **Language:** Kotlin
- **Kind:** method
- **Source:** https://libtmux.org/en/kotlin/latest/reference/sources/libtmux-kotlin/build/generated/sources/operations/kotlin/io/github/libtmux/kotlin/ControlClientOperations.kt
- **Page:** https://libtmux.org/en/kotlin/latest/reference/io-github-libtmux-kotlin-controlclient-watch/

```
public suspend fun ControlClient.watch(
  name: String,
  target: String,
  format: String,
): ControlReply
```

Asks tmux to report a format whenever its value changes.

## Parameters

- `name` (`String`)
- `target` (`String`)
- `format` (`String`)