/**
 * Implements hook_image_toolkits().
 */
function {{ machine_name }}_image_toolkits() {
  return array(
    'working' => array(
      'title' => t('A toolkit that works.'),
      'available' => TRUE,
    ),
    'broken' => array(
      'title' => t('A toolkit that is "broken" and will not be listed.'),
      'available' => FALSE,
    ),
  );
}