docs: public Transformer[] getDataProviderOutputTransformers() {
          Transformer[] transformers;
  
          if (dataProviderOutputTransformers == null) {
              transformers = null;
          } else {
              transformers = dataProviderOutputTransformers.toArray(new Transformer[dataProviderOutputTransformers.size
                      ()]);
          }
  
          return transformers;
      }