in Provider/src/main/java/com/spotify/confidence/openfeature/ConfidenceFeatureProvider.kt [71:78]
override fun onContextSet(
oldContext: EvaluationContext?,
newContext: EvaluationContext
) {
val context = newContext.toConfidenceContext()
val removedKeys = oldContext?.asMap()?.keys?.minus(newContext.asMap().keys) ?: emptySet()
confidence.putContext(context.map, removedKeys.toList())
}