pocketmine\nbt\tag\ListTag::write PHP Метод

    public function write(NBT $nbt, bool $network = false)
    {
        if (!isset($this->tagType)) {
            $id = null;
            foreach ($this as $tag) {
                if ($tag instanceof Tag) {
                    if (!isset($id)) {
                        $id = $tag->getType();
                    } elseif ($id !== $tag->getType()) {
                        return false;
                    }
                }
            }
            $this->tagType = $id;
        }
        $nbt->putByte($this->tagType);
        /** @var Tag[] $tags */
        $tags = [];
        foreach ($this as $tag) {
            if ($tag instanceof Tag) {
                $tags[] = $tag;
            }
        }
        $nbt->putInt(count($tags), $network);
        foreach ($tags as $tag) {
            $tag->write($nbt, $network);
        }
    }