Combines two instances associatively.AveragedValue
Combines two instances associatively.AveragedValue
result of combining l and r
AveragedValue.+ for the implementation
Optimized implementation of plus.
Optimized implementation of plus. Uses internal mutation to combine the supplied AveragedValue instances without creating intermediate objects.
instances of to be combinedAveragedValue
None if iter is empty, else an option value containing the summed AveragedValue
Returns the identity element of for plus.AveragedValue
Returns the identity element of for plus.AveragedValue
Group implementation for AveragedValue.