class Listener4Assist implements ListenerAssist {

    @Override public void setAlwaysRecoverAssistModelIfNotSet(boolean isAlwaysRecoverAssistModel) {
        modelHandler.setAlwaysRecoverAssistModelIfNotSet(isAlwaysRecoverAssistModel);
    }

      Listener4Assist(ListenerModelHandler<T> handler);
    public  Listener4Assist(ListenerModelHandler.ModelCreator<T> creator);

}