New is the constructor for the TimedQueue.

CancelPendingElements defines a shutdown flag, that causes the queue to be emptied on shutdown.

IgnorePendingTimeouts defines a shutdown flag, that makes the queue ignore the timeouts of the remaining queued elements.

PanicOnModificationsAfterShutdown makes the queue panic instead of ignoring consecutive writes or modifications.

QueueElement is an element in the TimedQueue.

TimedQueue represents a queue, that holds values that will only be released at a given time.

ShutdownFlag defines the type of the optional shutdown flags.