grocerycrud on practice

I try to utillize:

http://www.grocerycrud.com/image-crud/documentation

and I receive this error:

http://127.0.0.1/CompanyProfileCI/index....showimages


-------------------------------------

Fatal error: Call to undefined method Cpages::_example_output() in C:\Program Files (x86)\EasyPHP-Devserver-16.1\eds-www\CompanyProfileCI\application\controllers\cpages.php on line 116
A PHP Error was encountered
Severity: Error
Message: Call to undefined method Cpages::_example_output()
Filename: controllers/cpages.php
Line Number: 116
Backtrace:


controllers/cpages.php

PHP Code:

    public function slideshowimages() 
    
        {  
    
        $image_crud = new image_CRUD();
    
        $image_crud->set_primary_key_field('id');
        $image_crud->set_url_field('url');
        $image_crud->set_title_field('title');
        $image_crud->set_table('example_4')
        ->set_ordering_field('priority')
        ->set_image_path('assets/uploads');
            
        $output = $image_crud->render();
    
        $this->_example_output($output);
    
        $this->load->view('slideshow_images'); 
    
        } 


How to fix the error?

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