# io.github.libtmux.Layouts.Layouts.builtIn

- **Module:** io.github.libtmux.Layouts.Layouts
- **Package:** io.github.libtmux:libtmux
- **Language:** Java
- **Kind:** method
- **Source:** https://github.com/libtmux/libtmux-java/blob/842228310449e879ebcaa3f910597757c9dbffd6/libtmux/src/main/java/io/github/libtmux/Layouts.java#L120
- **Page:** https://libtmux.org/en/java/latest/reference/io-github-libtmux-layouts-layouts-builtin/

```
io.github.libtmux.Layouts.Layouts.builtIn(layout: String, running: TmuxVersion) -> Optional<Layout>
```

The built-in layout a name or an unambiguous prefix of one denotes, resolved against what {@code running} actually supports — the same resolution {@link #require(String, TmuxVersion)} applies, exposed so a caller that must choose between the enum path and a raw string (a workspace file's own dispatch) makes the same choice the guard just validated.