public function afterGetData(\Magento\Email\Model\Source\Variables $subject, $result)
    {
        return array_merge($result, $this->getAdditionalConfigVariables());
    }
public function afterGetData(\Magento\Email\Model\Source\Variables $subject, $result)
    {
        return array_merge($result, $this->getAdditionalConfigVariables());
    }
public function afterGetData ( \ Magento \ Email \ Model \ Source \ Variables $ subject , $ result ) { return array_merge ( $ result , $ this -> getAdditionalConfigVariables ( ) ) ; }
Return available config variables

@param \Magento\Email\Model\Source\Variables $subject
@param array $result

@return array
@codeCoverageIgnore
Return available config variables