--- /dev/null
+/**
+ * Implements hook_file_download_access_alter().
+ */
+function {{ machine_name }}_file_download_access_alter(&$grants, $file_item, $entity_type, $entity) {
+ // For our example module, we always enforce the rules set by node module.
+ if (isset($grants['node'])) {
+ $grants = array('node' => $grants['node']);
+ }
+}