ExampleCommand.php

<?php

/**
 * @file
 * Contains \Drupal\Console\Develop\Example.
 */

namespace Drupal\Console\Command\Develop;

use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Output\OutputInterface;
use Symfony\Component\Console\Command\Command;
use Drupal\Console\Command\Shared\CommandTrait;
use Drupal\Console\Style\DrupalStyle;

class ExampleCommand extends Command
{
    
    use CommandTrait;
    /**
     * {@inheritdoc}
     */
    protected function configure()
    {
        $this->setName('example');
    }

    /**
     * {@inheritdoc}
     */
    protected function interact(InputInterface $input, OutputInterface $output)
    {
    }

    /**
     * {@inheritdoc}
     */
    protected function execute(InputInterface $input, OutputInterface $output)
    {
        $io = new DrupalStyle($input, $output);
     
    }
}

ExampleContainerAwareCommand.php

<?php

/**
 * @file
 * Contains \Drupal\Console\Develop\Example.
 */

namespace Drupal\Console\Command\Develop;

use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Output\OutputInterface;
use Symfony\Component\Console\Command\Command;
use Drupal\Console\Command\Shared\ContainerAwareCommandTrait;
use Drupal\Console\Style\DrupalStyle;

class ExampleContainerAwareCommand extends Command
{

    use ContainerAwareCommandTrait;
    /**
     * {@inheritdoc}
     */
    protected function configure()
    {
        $this->setName('example');
    }

    /**
     * {@inheritdoc}
     */
    protected function interact(InputInterface $input, OutputInterface $output)
    {
    }

    /**
     * {@inheritdoc}
     */
    protected function execute(InputInterface $input, OutputInterface $output)
    {
        $io = new DrupalStyle($input, $output);
    }
}