protected function handleVoiceStateUpdate($data)
    {
        if (isset($this->voiceClients[$data->d->guild_id])) {
            $this->logger->debug('voice state update received', ['guild' => $data->d->guild_id, 'data' => $data->d]);
            $this->voiceClients[$data->d->guild_id]->handleVoiceStateUpdate($data->d);
        }
    }