/**
  * @param \Iterator $campaigns
  * @param MailChimpClient $client
  * @param array $parameters
  */
 public function __construct(\Iterator $campaigns, MailChimpClient $client, array $parameters = [])
 {
     parent::__construct($campaigns, $client);
     $this->parameters = $parameters;
 }
 /**
  * @param \Iterator $campaignsIterator
  * @param string $since
  * @param MailChimpClient $client
  */
 public function __construct(\Iterator $campaignsIterator, $since, MailChimpClient $client)
 {
     parent::__construct($campaignsIterator, $client);
     $this->since = $since;
 }