private function appendChangeDetailsForMail(PhabricatorLiskDAO $object, DifferentialDiff $diff, $patch, PhabricatorMetaMTAMailBody $body)
 {
     $section = id(new DifferentialChangeDetailMailView())->setViewer($this->getActor())->setDiff($diff)->setPatch($patch)->buildMailSection();
     $header = pht('CHANGE DETAILS');
     $section_text = "\n" . $section->getPlaintext();
     $style = array('margin: 6px 0 12px 0;');
     $section_html = phutil_tag('div', array('style' => implode(' ', $style)), $section->getHTML());
     $body->addPlaintextSection($header, $section_text, false);
     $body->addHTMLSection($header, $section_html);
 }