# LibTmux::Async::ControlConnection#pid

- **Module:** LibTmux::Async
- **Package:** libtmux-async
- **Language:** Ruby
- **Kind:** method
- **Source:** https://github.com/libtmux/libtmux-ruby/blob/d8ce4bbee0ca7748a81929f81f7d8d07f8c51267/gems/libtmux/lib/libtmux/control.rb#L336
- **Public owner:** LibTmux::ControlConnection#pid
- **Page:** https://libtmux.org/en/ruby/v0.1.0.alpha.3/reference/libtmux-async-controlconnection-pid/

```
def pid: () -> ::Integer
```

Returns the value of attribute pid.

Behavior contract: Control connections.