setName('nexmo:account:balance') ->setDescription('Gets account balance') ->setHelp("The nexmo:account:balance command gets Nexmo API account balance"); } /** * @see Command */ protected function execute(InputInterface $input, OutputInterface $output) { $account = $this->getContainer()->get('jhg_nexmo_account'); $balance = $account->balance(); $output->writeln(sprintf('Account balance: %f',$balance)); } }