public function getUnconfirmedAttendees(Event $event)
{
$url = $event->getUri() . '?what=maybe&do=showAll';
$crawler = $this->client->ajax($url, [], function ($response) {
return $this->getAttendeesSnippet($response, 'snippet--visitorsallmaybe');
});
$page = new AttendeesPage($crawler, $this->client);
$attendees = $page->getAttendees();
$event->setUnconfirmedAttendees($attendees);
return $attendees;
}