# LibTmux.Internal.TmuxEnvironmentVariables.HasPsmuxMarker

- **Module:** LibTmux.Internal.TmuxEnvironmentVariables
- **Package:** LibTmux
- **Language:** .NET
- **Kind:** method
- **Source:** https://github.com/libtmux/libtmux-dotnet/blob/6656a563ec9e07ab52e0c3ac96f7704fc94cc0c0/src/LibTmux/Environment/TmuxEnvironment.cs#L75
- **Page:** https://libtmux.org/reference/dotnet/libtmux-internal-tmuxenvironmentvariables-haspsmuxmarker/

```
LibTmux.Internal.TmuxEnvironmentVariables.HasPsmuxMarker(environment: IReadOnlyDictionary<string, string>?) -> bool
```