pocketmine\scheduler\TaskHandler::getNextRun PHP Method

    public function getNextRun()
    {
        return $this->nextRun;
    }

 /**
  * Sends, if available, the next ordered chunk to the client
  *
  * WARNING: Do not use this, it's only for internal use.
  * Changes to this function won't be recorded on the version.
  *
  */
 public function sendNextChunk()
 {
     if ($this->connected === false or !isset($this->chunkLoadTask)) {
         return;
     }
     if (count($this->loadQueue) === 0) {
         $this->chunkLoadTask->setNextRun($this->chunkLoadTask->getNextRun() + 30);
     } else {
         $count = 0;
         $limit = (int) $this->server->getProperty("chunk-sending.per-tick", 4);
         foreach ($this->loadQueue as $index => $distance) {
             if ($count >= $limit) {
                 break;
             }
             ++$count;
             $X = null;
             $Z = null;
             Level::getXZ($index, $X, $Z);
             if (!$this->getLevel()->isChunkPopulated($X, $Z)) {
                 continue;
             }
             unset($this->loadQueue[$index]);
             $this->usedChunks[$index] = [false, 0];
             $this->getLevel()->useChunk($X, $Z, $this);
             $this->getLevel()->requestChunk($X, $Z, $this, LevelProvider::ORDER_ZXY);
         }
     }
     if (count($this->usedChunks) < 16 and $this->spawned === true) {
         $this->blocked = true;
     } elseif ($this->spawned === true) {
         $this->blocked = false;
         //TODO: reason of block to revert
     }
     if (count($this->usedChunks) >= 56 and $this->spawned === false) {
         $spawned = 0;
         foreach ($this->usedChunks as $d) {
             if ($d[0] === true) {
                 $spawned++;
             }
         }
         if ($spawned < 56) {
             return;
         }
         $this->spawned = true;
         $this->blocked = false;
         $pk = new SetTimePacket();
         $pk->time = $this->getLevel()->getTime();
         $pk->started = $this->getLevel()->stopTime == false;
         $this->dataPacket($pk);
         $pos = new Position($this->x, $this->y, $this->z, $this->getLevel());
         $pos = $this->getLevel()->getSafeSpawn($pos);
         $this->server->getPluginManager()->callEvent($ev = new PlayerRespawnEvent($this, $pos));
         $this->teleport($ev->getRespawnPosition());
         $this->sendSettings();
         $this->inventory->sendContents($this);
         $this->inventory->sendArmorContents($this);
         $this->spawnToAll();
         $this->server->getPluginManager()->callEvent($ev = new PlayerJoinEvent($this, TextFormat::YELLOW . $this->getName() . " joined the game"));
         if (strlen(trim($ev->getJoinMessage())) > 0) {
             $this->server->broadcastMessage($ev->getJoinMessage());
         }
         if ($this->server->getUpdater()->hasUpdate() and $this->hasPermission(Server::BROADCAST_CHANNEL_ADMINISTRATIVE)) {
             $this->server->getUpdater()->showPlayerUpdate($this);
         }
     }
 }