Custom Fields Group - rwmb_meta for single image no returning array

[hanabukovska]

Hi,
in custom fileds group I have simple image. The function rwbm_meta returns ID, not array for image.

Function.php

        $meta_boxes[] = [
            'title'      	=> __('About us', 'understrap' ),
            'post_types' 	=> ['page'],
            'include'    	=> [
                'relation'	=> 'AND',
                'slug'		=> ['about-us'],
            ],

            'fields'     => [
                [
                    'id'		=> 'cc_about_us',
                    'type'		=> 'group',
                    'fields'	=> [

                        [
                            'name'    			=> 'Image',
                            'id'      			=> 'cc_about_us_image',
                            'type'   			=> 'single_image',
                        ],

                    ],	
                ],	
            ],
        ];

        return $meta_boxes;

Template.php:

<?php
$about_us = rwmb_meta( 'cc_about_us' );
?>
<h2>Result: <?php print_r($about_us); ?></h2> 

FrontEnd:

What with this? How do I get to the image url?

[rilwis]

Please see this docs