public function page($pageName)
    {
        if (!array_key_exists($pageName, $this->pages)) {
            return null;
        }

        return $this->pages[$pageName];
    }
public function page($pageName)
    {
        if (!array_key_exists($pageName, $this->pages)) {
            return null;
        }

        return $this->pages[$pageName];
    }
Returns the definition for the requested page
@param string $pageName

@return null|array