pocketmine\level\format\FullChunk::setProvider PHP Method

    public function setProvider(LevelProvider $provider);

 public function generateChunkCallback($x, $z, FullChunk $chunk)
 {
     $oldChunk = $this->getChunk($x, $z, false);
     unset($this->chunkGenerationQueue[PHP_INT_SIZE === 8 ? ($x & 4294967295.0) << 32 | $z & 4294967295.0 : $x . ":" . $z]);
     $chunk->setProvider($this->provider);
     $this->setChunk($x, $z, $chunk);
     $chunk = $this->getChunk($x, $z, false);
     if ($chunk !== null and ($oldChunk === null or $oldChunk->isPopulated() === false) and $chunk->isPopulated()) {
         $this->server->getPluginManager()->callEvent(new ChunkPopulateEvent($chunk));
     }
 }