# tmux_key:key/0

- **Package:** libtmux_erlang
- **Language:** Erlang
- **Kind:** typealias
- **Source:** https://github.com/libtmux/libtmux-erlang/blob/d1b6308440cf9eb8f6647e7ae434bce60e849368/apps/libtmux_erlang/src/tmux_key.erl#L32
- **Page:** https://libtmux.org/en/erlang/latest/reference/t-tmux_key-key-0/

```
-type key() :: binary().
```

A nonempty NUL-free native key spelling, at most 128 bytes; tmux validates its meaning.