/**
  * @param GithubService $api
  * @param AccessResponse $accessResponse
  */
 function showGithubEmails(GithubService $api, AccessResponse $accessResponse)
 {
     $emailCommand = $api->getUserEmails(new Oauth2Token($accessResponse->accessToken));
     $emailList = $emailCommand->execute();
     foreach ($emailList->emails as $email) {
         echo "Address " . $email->address . " primary = " . $email->primary . "<br/>";
     }
 }