com.unity.perception/com.unity.perception/Runtime/GroundTruth/Labelers/InstanceSegmentationLabeler.cs

using System;

namespace UnityEngine.Perception.GroundTruth {
    public class InstanceSegmentationLabeler : CameraLabeler
    {
        public bool saveImages = false;
        public string annotationId = "E657461D-B950-42E1-8141-BEC9B4810241";
    }
}