<PackageReference Include="NUnit" Version="4.4.0" />

NUnit.Framework.Internal.NetPlatformHelper

public static class NetPlatformHelper
Class is used by the NetPlatformAttribute class to determine whether a platform is supported.
namespace NUnit.Framework.Internal { public static class NetPlatformHelper { public static bool IsPlatformSupported(string[] platforms); public static bool IsPlatformSupported(string platform); } }