public VALUE valueFor(Binding variantBinding) {
            for (var entry : buildableVariants.entrySet()) {
                if (entry.getValue().variants.contains(variantBinding))
                    return entry.getKey();
            }
            return null;
        }
Returns the value for the given binding, or null if none
container-search/src/main/java/com/yahoo/search/query/profile/compiled/DimensionalValue.java