Return Array in Snippet MODX

returnArrayinSnippet

<?php
     if($s = $modx->getObject('modSnippet', [
            'name' => 'имя сниппета',
        ])){
            $s->loadScript();
            $f = $s->getScriptName();
            $params =  array('foo' => $foo);
            $func = $f($params);
            return  $func;
        }