# tmux.Session.SetEnvironment

- **Module:** tmux.Session
- **Package:** github.com/libtmux/libtmux-go/tmux
- **Language:** Go
- **Kind:** method
- **Source:** https://github.com/libtmux/libtmux-go/blob/52968a3181c1c9e6d1b26c565d4b170968ae61c0/tmux/environment.go#L123
- **Page:** https://libtmux.org/en/go/latest/reference/tmux-session-setenvironment/

```
tmux.Session.SetEnvironment(ctx: context.Context, name: string, value: string, options: SetEnvironmentOptions) -> error
```

SetEnvironment stores a value in this session's tmux environment, targeted by its stable SessionID.