EnvDTE.Host/ZoneMarker.cs (5 lines of code) (raw):
using JetBrains.Application.BuildScript.Application.Zones;
using JetBrains.RdBackend.Common.Env;
namespace JetBrains.EnvDTE.Host;
[ZoneMarker]
public class ZoneMarker : IRequire<IReSharperHostCoreSharedFeatureZone>;