public function send()
{
$sender = new Sender($this->apiKey);
$responseBody = $sender->send($this->message);
$response = new Response($this->message, $responseBody);
foreach ($response->getUpdate() as $oldId => $newId) {
$this->updateRegistrationIds($oldId, $newId);
}
foreach ($response->getRemove() as $id) {
$this->removeInvalidRegistrationId($id);
}
foreach ($response->getUnavailable() as $id) {
$this->unavailableRegistration($id);
}
return $responseBody;
}
