protected function execute(InputInterface $input, OutputInterface $output)
 {
     $clientStorage = new ClientStorage(new RedisClient(null, 'dev', 6379), new RedisKeysManager());
     if ($clients = $clientStorage->all()) {
         $output->writeln('<info>Your clients are: </info>');
         foreach ($clients as $client) {
             $output->writeln('<info>Client ID: </info>' . $client->getClientId());
             $output->writeln('<info>App Name: </info>' . $client->getName());
             $output->writeln('-------------------------------------------------');
         }
     } else {
         $output->writeln('<error>No available clients!</error>');
     }
 }