Drupal 7


function drupal_developers_entity_info(){
  $items = array(
    'group' => array(
      'name' => t('Drupal Developers'),
      'description' => t('The Drupal Developers community group meets every other month to have fun hacking on code and improving our skills.'),
    ),
  );
}

Drupal 8


class DrupalDevelopers extends DrupalCommunity {
  public $name = 'Drupal Developers';
  public $description =  'The Drupal Developers community group meets every other month to have fun hacking on code and improving our skills.';

}