# LibTmux::Async::Server#environment

- **Module:** LibTmux::Async
- **Package:** libtmux-async
- **Language:** Ruby
- **Kind:** method
- **Source:** https://github.com/libtmux/libtmux-ruby/blob/dcc9f8b5a6970144a9e7d80cd5f381d8f6198372/gems/libtmux/lib/libtmux/operations.rb#L85
- **Public owner:** LibTmux::Server#environment
- **Page:** https://libtmux.org/en/ruby/v0.1.0.alpha.2/reference/libtmux-async-server-environment/

```
def environment: (
  ::String,
  ?hidden: bool,
  ?timeout: ::Numeric,
  ?cancel: untyped
) -> ::String?
```

Behavior: Environment.

Behavior contract: Environment.