Adding Prebuilt Templates to a Premium Theme

I have followed the directions on this page: https://siteorigin.com/docs/page-builder/bundling-prebuilt/

I have added this code to my wp-config.php file and made no further edits on that page:
define(‘SITEORIGIN_PANELS_NOCACHE’, true);
define(‘SITEORIGIN_PANELS_DEV’, true);

Then I did as follows….

Created a new page in wordpress.
Used the page builder to add some content to the page .
I saved and published the page.
In a new tab I opened the page I just published.
In a new tab I opened the source code for that page.
I searched for Page Builder Data but found nothing.

What am I doing wrong?