# types.SetEnvironmentOptions

- **Module:** types
- **Package:** libtmux
- **Language:** TypeScript
- **Kind:** interface
- **Source:** https://github.com/libtmux/libtmux-ts/blob/46cccfef2a546de55ce8b308249b8c76339089a0/packages/libtmux/src/types.ts#L611
- **Page:** https://libtmux.org/en/ts/latest/reference/types-setenvironmentoptions/

Options for writing a tmux environment variable.

## Members

### Other members

- [`expandFormat`](/en/ts/latest/reference/types-setenvironmentoptions-expandformat/) (property): Expand tmux format strings in the value, matching tmux's `-F`.
- [`hidden`](/en/ts/latest/reference/types-setenvironmentoptions-hidden/) (property): Keep the variable out of `show-environment` output, matching tmux's `-h`.