islandora/islandora_basic_image/islandora_basic_image.install

<?php

function islandora_basic_image_install() {
  $t = get_t();

  $basic_image_content_type = array(
    'type' => 'basic_image',
    'name' => $t('Basic Image'),
    'base' => 'node_content',
    'description' => $t('An image object in Fedora'),
  );

  $basic_image_content_type = node_type_set_defaults($basic_image_content_type);

  $status = node_type_save($basic_image_content_type);

  $t_args = array('%name' => $basic_image_content_type->name);

  if ($status == SAVED_UPDATED) {
    drupal_set_message($t('Updated %name content type.', $t_args));
  }
  elseif ($status == SAVED_NEW) {
    drupal_set_message($t('Created %name content type.', $t_args));
  }

}

function islandora_basic_image_uninstall() {
  node_type_delete('basic_image');
}