# io.github.libtmux.OptionKey.OptionKey.BASE_INDEX

- **Module:** io.github.libtmux.OptionKey.OptionKey
- **Package:** io.github.libtmux:libtmux
- **Language:** Java
- **Kind:** attribute
- **Source:** https://github.com/libtmux/libtmux-java/blob/842228310449e879ebcaa3f910597757c9dbffd6/libtmux/src/main/java/io/github/libtmux/OptionKey.java#L33
- **Page:** https://libtmux.org/en/java/latest/reference/io-github-libtmux-optionkey-optionkey-base_index/

The index a session's first window gets. A session option.