public function sendGetBroadcastLists()
    {
        $msgId = $this->nodeId['get_lists'] = $this->createIqId();
        $listsNode = new ProtocolNode('lists', null, null, null);
        $node = new ProtocolNode('iq',
            [
                'id'    => $msgId,
                'xmlns' => 'w:b',
                'type'  => 'get',
                'to'    => Constants::WHATSAPP_SERVER,
            ], [$listsNode], null);

        $this->sendNode($node);
    }