protected function configure()
{
$this->setName('index:list')->setDescription('Lists all magento indexes')->addOption('format', null, InputOption::VALUE_OPTIONAL, 'Output Format. One of [' . implode(',', RendererFactory::getFormats()) . ']');
$help = <<<HELP
Lists all Magento indexers of current installation.
HELP;
$this->setHelp($help);
}