public function execute(Input $input, Output $output)
{
$commands = $this->getConsole()->getCommands();
$output->br();
foreach ($commands as $command) {
$output->padding(20)->label($command->getName())->result($command->getDescription());
}
$output->br();
}
protected function version(Input $input, Output $output)
{
$console = $this->getConsole();
$output->out($console->getName() . ($console->getVersion() ? ' version ' . $console->getVersion() : ''));
}