ClientNotReady label will be returned when the client is not ready.

Exception label will be returned if something goes wrong during the split evaluation.

Killed label will be returned when the split requested has been killed.

MatcherNotFound label will be returned when matchertype is unknown.

NoConditionMatched label will be returned when no condition of the split has matched.

NotInSplit label will be returned when traffic allocation fails.

SplitNotFound label will be returned when the split requested is not present in storage.

UnsupportedMatcherType label will be returned when a matcher is not supported.