public function getSiblings(BlockInterface $block, $version = false)
    {
        $owner = $block->getOwner();
        $family = $this->findByOwner($owner, $version);

        $siblings = array();

        foreach ($family as $member) {
            if ($member->getParent() && $member->getParent()->getId() == $block->getParent()->getId()) {
                array_push($siblings, $member);
            }
        }

        return $siblings;
    }