public OptionalDouble getTargetHitsMaxAdjustmentFactor() {
        if (targetHitsMaxAdjustmentFactor != null) {
            return OptionalDouble.of(targetHitsMaxAdjustmentFactor);
        }
        return uniquelyInherited(RankProfile::getTargetHitsMaxAdjustmentFactor, OptionalDouble::isPresent, "target-hits-max-adjustment-factor").orElse(OptionalDouble.empty());
    }
Returns a read only map view of the rank properties to use in this profile. This is never null.
config-model/src/main/java/com/yahoo/schema/RankProfile.java