code: public JSONObject partialUpdateObjects(List<JSONObject> objects) throws AlgoliaException {
      try {
        JSONArray array = new JSONArray();
        for (JSONObject obj : objects) {
          array.put(partialUpdateObject(obj));
        }
        return batch(array);
      } catch (JSONException e) {
        throw new AlgoliaException(e.getMessage());
      }
    }
docs: Partially Override the content of several objects
  
  @param objects the array of objects to update (each object must contains an objectID attribute)