# LibTmux.FSharp.WindowSpec.Environment

- **Module:** LibTmux.FSharp
- **Package:** LibTmux.FSharp
- **Language:** F#
- **Kind:** property
- **Source:** https://github.com/libtmux/libtmux-dotnet/blob/cf34b255c896d19a97e7d7fabea58609c916012d/src/LibTmux.FSharp/Spec.fsi#L45
- **Page:** https://libtmux.org/en/fsharp/latest/reference/libtmux-fsharp-windowspec-environment/

```
Environment: Map<string, string>
```

Variables added to the first pane's environment; a session's first window takes them from the session instead.