Choice
data class ChoiceAnswer<K : Any>(val choice: K, val probabilities: Map<K, Double>, val confidence: Double) : Answer(source)
The answer to a Choice: the highest-probability option, the probability of every option, and a confidence from 0 to 1. Confidence is not the winner's probability, but it depends on nothing else: it rescales that probability so that an even split across the options is 0 and certainty is 1. A close runner-up therefore shows only in probabilities; compare the top two entries of ranked to catch a near-tie.