# LibTmux::ClosedError#expected

- **Module:** LibTmux::ClosedError#
- **Package:** libtmux
- **Language:** Ruby
- **Kind:** method
- **Source:** https://github.com/libtmux/libtmux-ruby/blob/c6d9d21771828e583692ca899ed817f9640d6a55/gems/libtmux/lib/libtmux/errors.rb#L5
- **Page:** https://libtmux.org/en/ruby/latest/reference/libtmux-closederror-expected/

```
LibTmux::ClosedError#expected() -> ::String?
```

Returns the value of attribute expected.

Behavior contract: Errors.