IRenderInstancedLabels
Internal interface to enable adding labels that are related to an instanceableGraphicItem.
            
using System;
namespace Autodesk.DesignScript.Interfaces
{
    public interface IRenderInstancedLabels
    {
        void AddInstancedLabel(string label, VertexType vertexType, int vertIndex, int instanceIndex, Guid BaseTessellationId);
        int InstanceCount(Guid baseTessellationID);
    }
}