# tmux.DisplayPopupRequest.Environment

- **Module:** tmux.DisplayPopupRequest
- **Package:** github.com/libtmux/libtmux-go/tmux
- **Language:** Go
- **Kind:** attribute
- **Source:** https://github.com/libtmux/libtmux-go/blob/5f808882015a975a65acc7f9da5b3ff0d5cbdc91/tmux/pane_popup.go#L66
- **Page:** https://libtmux.org/reference/go/tmux-displaypopuprequest-environment/

Environment adds validated popup environment entries. Nil and an empty map add none; entries are sent in lexical key order.