I've some inhouse NuGet Packages which include PowerShell scripts which call $package.GetFiles(). In Visual Studio 2015 the following error is thrown on executing this PowerShell:

Method invocation failed because [NuGet.PackageManagement.VisualStudio.ScriptPackage] does not contain a method named 'GetFiles'.

Is there a way to retrieve all files in a package from a init.ps PowerShell script with the v3 API?