public function deleteGraph($name)
    {
        try {
            $graphHandler = $this->_toolbox->getGraphHandler();

            return $graphHandler->dropGraph($name);
        } catch (\Exception $e) {
            $normalised = $this->_toolbox->normaliseDriverExceptions($e);
            throw new GraphManagerException($normalised['message'], $normalised['code']);
        }
    }