/**
     * Gets the value of a field.
     *
     * @param string $key The field name to get.
     * @return mixed The value of the key, or null if non-existent.
     */
    public function getValue($key)

    /**
     * Gets an associative array of field name and values.
     *
     * @return array $values A key/name pair of fields and values.
     */
    public function getValues()

 {$_modx->runSnippet('!pdoPage', [
                'tpl' => '@FILE /chunks/pages/related_row.tpl',
                'tplWrapper'=>'@FILE /chunks/pages/outer_related_row.tpl',
                'element'=>'msProducts',
                'link'=>'1',
                'master'=>$_modx->resource.id,
            ])}