# io.github.libtmux.kotlin.Server.session

- **Module:** io.github.libtmux.kotlin
- **Package:** io.github.libtmux:libtmux-kotlin
- **Language:** Kotlin
- **Kind:** method
- **Source:** https://github.com/libtmux/libtmux-java/blob/f56392b5d9bc7f1f9c1631842333fb90f3d82d40/libtmux-kotlin/src/main/kotlin/io/github/libtmux/kotlin/Server.kt#L97
- **Page:** https://libtmux.org/en/kotlin/latest/reference/io-github-libtmux-kotlin-server-session/

```
public suspend fun session(expression: FilterExpr<JavaSession>): Session

public suspend fun Server.session(name: String): Session?

public suspend fun Server.session(id: SessionId): Session?
```

The one session this expression matches, captured now.

## Parameters

- `expression` (`FilterExpr<JavaSession>`) (for `session(expression)`)
- `name` (`String`) (for `session(name)`)
- `id` (`SessionId`) (for `session(id)`)

## Raises

- [`CardinalityException.NoMatch`](/en/java/latest/reference/io-github-libtmux-exception-cardinalityexception-cardinalityexception-nomatch/): if nothing matched (for `session(expression)`)
- [`CardinalityException.MultipleMatches`](/en/java/latest/reference/io-github-libtmux-exception-cardinalityexception-cardinalityexception-multiplematches/): if more than one session matched (for `session(expression)`)