如何迭代自定义查询的多个结果集？

I have a stored procedure in my mysql database which returns multiple query result sets. I want to access these results in my cakephp(V3.4) project using following code statements.

  $db = ConnectionManager::get('default');                  
        $stmt = $db->execute("call mydatasp($paramlist)");
        $result = array();                     
        try{
                do
                {
                    $rowset = $stmt->fetchAll('assoc');
                    $result[]=$rowset;
                } while($stmt->nextRowset());
            }
            catch(Exception $e){}

After execution of this code block, I m getting error as

[Cake\Error\FatalErrorException] Call to undefined method Cake\Database\Log\LoggingStatement::nextRowset()

How can I access these multiple query resultsets?