# tmux_select:summary/0

- **Package:** libtmux_erlang
- **Language:** Erlang
- **Kind:** typealias
- **Source:** https://github.com/libtmux/libtmux-erlang/blob/d1b6308440cf9eb8f6647e7ae434bce60e849368/apps/libtmux_erlang/src/tmux_select.erl#L54
- **Page:** https://libtmux.org/en/erlang/latest/reference/t-tmux_select-summary-0/

```
-type summary() ::
          #{entity := tmux_schema:entity(),
            size := non_neg_integer(),
            snapshot_id := reference() | none,
            coverage := tmux_snapshot:entity_coverage(),
            capture_started => integer(),
            capture_finished => integer(),
            time_unit => microsecond,
            query => tmux_snapshot:query_metadata()}.
```

Compact local inspection. size counts current materialized rows; coverage still describes the original captured context after filtering or take. snapshot_id is none for a list-backed selection. Capture bounds and query diagnostics are included only when that source metadata exists.