add_filter('stec_ics_import_post_data', function ($post_data, $item) {

    $attachment = isset($item->attach) ? $item->attach : null;
    $support    = array('jpeg', 'png');
    $ext        = pathinfo($attachment, PATHINFO_EXTENSION);

    if ($attachment && in_array($ext, $support)) {

        require_once(ABSPATH . 'wp-admin/includes/file.php');

        $tmp_file = download_url($attachment);

        if (is_wp_error($tmp_file)) {
            return $post_data;
        }

        $attachments_ids = \Stachethemes\Stec\Helpers::upload_images(array(
            array(
                'name'     => basename($attachment),
                'tmp_name' => $tmp_file,
                'type'     => 'image/' . $ext
            )
        ));

        $result = array();

        if (is_array($attachments_ids) && $attachments_ids) {

            $result = array_map(function ($id) {

                $sizes = array('full', 'large', 'medium', 'thumbnail');

                $result = array(
                    'id'         => $id,
                    'sizes'      => array(),
                    'dimensions' => array(),
                    'order'      => 0
                );

                foreach ($sizes as $size) {
                    $attachment = wp_get_attachment_image_src($id, $size);
                    
                    $result['sizes'][$size] = $attachment[0];

                    $result['dimensions'][$size] = array(
                        'width'  => $attachment[1],
                        'height' => $attachment[2],
                        'ar'     => $attachment[1] / $attachment[2]
                    );
                }

                return $result;
            }, $attachments_ids);

            $post_data['meta']['images'] = $result;
        }

    }

    return $post_data;

}, 10, 2);