return $output;
} /**
* @param list<string> $output
*
* @return list<string>
*/
private function exportKeysByRequestedSection(array
$output, ChangelogFileCollection
$collection): array
{ foreach ($collection as $changelog) { $content =
$changelog->
getDefinition()->
getIssue();
if (!
isset($output[$content])) { $output[] =
$content;
} } return $output;
} /**
* @param list<string> $output
*
* @return list<string>
*/