pocketmine\metadata\BlockMetadataStore::hasMetadata PHP Метод

    public function hasMetadata($block, $metadataKey)
    {
        if (!$block instanceof Block) {
            throw new \InvalidArgumentException("Object must be a Block");
        }
        if ($block->getLevel() === $this->owningLevel) {
            return parent::hasMetadata($block, $metadataKey);
        } else {
            throw new \InvalidStateException("Block does not belong to world " . $this->owningLevel->getName());
        }
    }