<PackageReference Include="System.Reactive" Version="6.0.1-preview.1" />

IPlatformEnlightenmentProvider

(Infrastructure) Interface for enlightenment providers.
using System.ComponentModel; using System.Runtime.CompilerServices; namespace System.Reactive.PlatformServices { [System.Runtime.CompilerServices.NullableContext(1)] [EditorBrowsable(EditorBrowsableState.Never)] public interface IPlatformEnlightenmentProvider { [return: System.Runtime.CompilerServices.Nullable(2)] T GetService<T>(params object[] args) where T : class; } }