System.ServiceModel 4.0.0.0 System.Delegate System.Void To be added. Use an to notify the indigo1 runtime that an object has finished processing. When the object notifies the runtime that the has finished its work, indigo2 calls once again. This cycle continues until returns true and the context is closed and recycled. For more information, see . Represents the method that is called when an object has finished processing.