docs: public <TDPO> TransformedDataProviderContext transform(Transformer<DPO, TDPO> ruleInputTransformer) {
          List<Transformer> addedTransformers = new ArrayList<Transformer>();
          if (ruleInputTransformer != null) {
              addedTransformers.add(ruleInputTransformer);
          }
  
          return new TransformedDataProviderContext<DPO, TDPO>(addedTriggers, addedDataProviders,
                  GeneralValidator.MappingStrategy.SPLIT, addedTransformers);
      }