# tmux_schema:operator/0

- **Package:** libtmux_erlang
- **Language:** Erlang
- **Kind:** typealias
- **Source:** https://github.com/libtmux/libtmux-erlang/blob/d1b6308440cf9eb8f6647e7ae434bce60e849368/apps/libtmux_erlang/src/tmux_schema.erl#L46
- **Page:** https://libtmux.org/en/erlang/latest/reference/t-tmux_schema-operator-0/

```
-type operator() ::
          equals | 'not' | in | not_in | lt | lte | gt |
          gte | contains | starts_with | ends_with | regex |
          present.
```

Validated scalar operators. The field's type and nullability restrict this set.