public function fetchIssues($user, $repository)
 {
     $sixMonthsAgo = new \DateTime('-6 month');
     $sixMonthsAgo = $sixMonthsAgo->format('Y-m-d');
     // Pre-filter with labels to fetch as little issues as possible
     $excludedLabels = $this->getExcludedLabelsSearchString();
     $query = "repo:{$user}/{$repository} type:issue created:>{$sixMonthsAgo} {$excludedLabels}";
     $paginator = new SearchPager($this->github);
     try {
         $results = $paginator->fetchAll($query);
     } catch (ValidationFailedException $e) {
         if (strpos($e->getMessage(), 'Validation Failed: Field "q" is invalid') === 0) {
             throw new RuntimeException('Not Found');
         }
         throw $e;
     }
     return array_map(function (array $data) {
         return Issue::fromArray($data);
     }, $results);
 }
 /**
  * @param string $user
  * @param string $repository
  * @return Issue[]
  */
 private function fetchIssues($user, $repository)
 {
     /** @var \GitHub\Api\Issue $issueApi */
     $issueApi = $this->github->api('issue');
     $paginator = new ResultPager($this->github);
     $issues = $paginator->fetchAll($issueApi, 'all', [$user, $repository, ['state' => 'all']]);
     $issues = array_map(function (array $data) {
         return Issue::fromArray($data);
     }, $issues);
     return $issues;
 }