[Revolution] How to create document programmatically from snippet?

<?php
 $doc = $modx->newObject('modResource');
 $doc->set('createdby', $modx->user->get('id'));
 $doc->set('template', 'Aqueous2');
 $doc->set('pagetitle', 'asdf');
 $doc->set('parent', '1');
 $doc->save();
 
 return true;
?>