docs: public List<Map<String, String>> pipelinePossibleStates(TransformTag action,
                                                              List<Map<String, String>> possibleStateList) {
          DataTransformer tr = transformers.get(action.getName());
          DataPipe pipe = new DataPipe(0, null);
  
          for (Map<String, String> possibleState : possibleStateList) {
              pipe.getDataMap().putAll(possibleState);
              tr.transform(pipe);
              possibleState.putAll(pipe.getDataMap());
          }
  
          return possibleStateList;
      }