docs: public PreferredValueMakersRegistry addFieldOrPropertyMaker(Class ownerType, String propertyName, Maker<?> maker) {
          Preconditions.checkNotNull(ownerType);
          Preconditions.checkNotNull(propertyName);
          makers.put(Matchers.equalTo(String.format(Settable.FULL_NAME_FORMAT, ownerType.getName(), propertyName)), maker);
          return this;
      }