Akka.TestKit.TestScheduler.Advance C# (CSharp) Method

        public void Advance(TimeSpan offset)
        {
            _now = _now.Add(offset);

            var tickItems = _scheduledWork.Where(s => s.Key <= _now.Ticks).OrderBy(s => s.Key).ToList();

            foreach (var t in tickItems)
            {
                foreach (var si in t.Value.Where(i => i.Cancelable == null || !i.Cancelable.IsCancellationRequested))
                {
                    if (si.Type == ScheduledItem.ScheduledItemType.Message)
                        si.Receiver.Tell(si.Message, si.Sender);
                    else
                        si.Action();

                    si.DeliveryCount++;
                }

                Queue<ScheduledItem> removed;
                _scheduledWork.TryRemove(t.Key, out removed);

                foreach (var i in removed.Where(r => r.Repeating && (r.Cancelable == null || !r.Cancelable.IsCancellationRequested)))
                {
                    InternalSchedule(null, i.Delay, i.Receiver, i.Message, i.Action, i.Sender, i.Cancelable, i.DeliveryCount);
                }
            }
            
        }