ChoiceRef public class ChoiceRef : IHasArtifactID, IHasIdentifyingInformation, IHasGuid Represents a key or reference to a Choice object. Documentation public int ArtifactID { get; set; } Gets or sets the Artifact ID of a Choice object. public Guid? Guid { get; set; } Gets or sets a GUID used to identify a Choice object. public ChoiceRef()