how to set published = 1 in update?

 function updateDocument($id, $tvs) {
		 $update = array(
           "published" => 1
              );
			   $id = $this->CakeModx->updateDocument($update);
        foreach ($tvs as $k => $v)
            $this->CakeModx->setTV($k, $id, $v);
    }