Task List Meta Data
constructor(name: String = "Task List", description: String = "", tasks: List<Task> = emptyList(), priority: Priority = Priority.NONE, createdAt: Long = 0, updatedAt: Long = 0, error: String = "", sources: List<NodeIdentity> = emptyList(), snapshot: Snapshot = Snapshot(), invocationTriggers: List<InvocationTrigger> = emptyList(), nodeAction: NodeAction = NodeAction.EXECUTE, inputs: List<NodeIdentity> = emptyList())(source)