final public function batchUpdate($scn, array $criteria, array $update)
    {
        return $this->getCollectionForModel($scn)->update($criteria, $update, ['multiple' => true]);
    }
final public function batchUpdate($scn, array $criteria, array $update)
    {
        return $this->getCollectionForModel($scn)->update($criteria, $update, ['multiple' => true]);
    }
final public function batchUpdate ( $ scn , array $ criteria , array $ update ) { return $ this -> getCollectionForModel ( $ scn ) -> update ( $ criteria , $ update , [ 'multiple' => true ] ) ; }
Performs a batch update

@param   string  $scn
@param   array   $criteria   The targeting parameters
@param   array   $update     The modifications to make to the targeted documents
Performs a batch update