# tmux.PaneObservation.SessionID

- **Module:** tmux.PaneObservation
- **Package:** github.com/libtmux/libtmux-go/tmux
- **Language:** Go
- **Kind:** method
- **Source:** https://github.com/libtmux/libtmux-go/blob/52968a3181c1c9e6d1b26c565d4b170968ae61c0/tmux/control_observation.go#L66
- **Page:** https://libtmux.org/en/go/latest/reference/tmux-paneobservation-sessionid/

```
tmux.PaneObservation.SessionID() -> SessionID
```

SessionID returns the session the observation's own control client attached to, resolved live when the observation opened - the session a listing must count this client's attachment against, not merely the pane's session at some other, possibly stale, snapshot.