# tmux_model:snapshot_id/1

- **Package:** libtmux_erlang
- **Language:** Erlang
- **Kind:** function
- **Source:** https://github.com/libtmux/libtmux-erlang/blob/d1b6308440cf9eb8f6647e7ae434bce60e849368/apps/libtmux_erlang/src/tmux_model.erl#L247
- **Page:** https://libtmux.org/en/erlang/latest/reference/tmux_model-snapshot_id-1/

```
snapshot_id/1
-spec snapshot_id(row()) -> none | reference().
```

Read the capture identity, or none when not associated with a snapshot. Performs no I/O.

## Parameters

- `Argument1` (`row()`)