# libtmux:make-cancellation-token

- **Package:** libtmux
- **Language:** Common Lisp
- **Kind:** function
- **Source:** https://github.com/libtmux/libtmux-lisp/blob/c2e5fc4ed3befda21f45dfa5d5868c38fd138311/src/transport.lisp#L74
- **Public owner:** libtmux
- **Page:** https://libtmux.org/en/lisp/latest/reference/libtmux-make-cancellation-token/

```
(make-cancellation-token)
```

Create a token for one or more operations. CANCEL is idempotent.
Signals UNSUPPORTED-PLATFORM outside the qualified runtime profile.

See also: `libtmux:cancel`, `libtmux:cancelled-p`, `libtmux:open-client`.

## Guides

Pages that discuss `make-cancellation-token`.

- [Transport and cleanup](/en/lisp/latest/concepts/transport/)