# 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/52968a3181c1c9e6d1b26c565d4b170968ae61c0/tmux/pane_popup.go#L79
- **Page:** https://libtmux.org/en/go/latest/reference/tmux-displaypopuprequest-environment/

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