pocketmine\event\player\PlayerAchievementAwardedEvent::getAchievement PHP Method

    public function getAchievement()
    {
        return $this->achievement;
    }

 public function onPlayerAchievementAwardedEvent(PlayerAchievementAwardedEvent $event)
 {
     $message = new TranslationContainer("chat.type.achievement", [$event->getPlayer()->getDisplayName(), TextFormat::GREEN . Achievement::$list[$event->getAchievement()]["name"]]);
     if ($message instanceof TranslationContainer) {
         $message = $this->getServer()->getLanguage()->translateString($message->getText(), $message->getParameters());
     }
     AnnounceSystem::getInstance()->pushBroadCastPopup($message, 2);
 }