# LibTmux::Hooks#set

- **Module:** LibTmux
- **Package:** libtmux
- **Language:** Ruby
- **Kind:** method
- **Source:** https://github.com/libtmux/libtmux-ruby/blob/dcc9f8b5a6970144a9e7d80cd5f381d8f6198372/gems/libtmux/lib/libtmux/options.rb#L170
- **Page:** https://libtmux.org/en/ruby/v0.1.0.alpha.2/reference/libtmux-hooks-set/

```
def set: (
  ::String,
  command: ::String,
  ?index: ::Integer?,
  ?append: bool,
  ?timeout: ::Numeric,
  ?cancel: untyped
) -> ::LibTmux::CommandResult
```

Behavior: Options and hooks.

Behavior contract: Options and hooks.

## Raises

- `ArgumentError`