public function sendSetRecoveryToken($token)
    {
        $child = new ProtocolNode('pin',
            [
                'xmlns' => 'w:ch:p',
            ], null, $token);

        $node = new ProtocolNode('iq',
            [
                'id'   => $this->createIqId(),
                'type' => 'set',
                'to'   => Constants::WHATSAPP_SERVER,
            ], [$child], null);

        $this->sendNode($node);
    }