net/src/main/java/com/stanfy/enroscar/rest/loader/RequestBuilderLoader.java
protected ResponseData<MT> onAcceptData(final ResponseData<MT> previousData, final ResponseData<MT> responseData) {
    return responseData;
  }
protected ResponseData<MT> onAcceptData(final ResponseData<MT> previousData, final ResponseData<MT> responseData) {
    return responseData;
  }
Data loading has been successful, we are going to accept data.
Here we can implement some accumulation logic.
@param previousData old data
@param responseData new data
@return data to accept