# LibTmux::Async::Server#diagnostics

- **Module:** LibTmux::Async
- **Package:** libtmux-async
- **Language:** Ruby
- **Kind:** method
- **Source:** https://github.com/libtmux/libtmux-ruby/blob/d8ce4bbee0ca7748a81929f81f7d8d07f8c51267/gems/libtmux-async/lib/libtmux/async/server.rb#L23
- **Page:** https://libtmux.org/en/ruby/v0.1.0.alpha.3/reference/libtmux-async-server-diagnostics/

```
def diagnostics: () -> ::LibTmux::Async::scope_diagnostics
```

Scope counters remain readable after this facade closes its scope.

Behavior contract: Diagnostics.