namespace System.Threading.Tasks { public enum TaskContinuationOptions { AttachedToParent = 4, DenyChildAttach = 8, ExecuteSynchronously = 524288, HideScheduler = 16, LazyCancellation = 32, LongRunning = 2, None = 0, NotOnCanceled = 262144, NotOnFaulted = 131072, NotOnRanToCompletion = 65536, OnlyOnCanceled = 196608, OnlyOnFaulted = 327680, OnlyOnRanToCompletion = 393216, PreferFairness = 1, RunContinuationsAsynchronously = 64 } }