code review

classes/privacy/provider.php

@@ -49,7 +49,7 @@ class provider implements \core_privacy\local\metadata\provider,
      * @param   collection $collection The initialised collection to add items to.
      * @return  collection     A listing of user data stored through this system.
      */
-    public static function get_metadata(collection $collection) : collection {
+    public static function get_metadata(collection $collection): collection {
         $arr = [
             'userid' => 'privacy:metadata:paygw_airtelafrica:userid',
             'transactionid' => 'privacy:metadata:paygw_airtelafrica:transactionid',
@@ -68,7 +68,7 @@ public static function get_metadata(collection $collection) : collection {
      * @param int $userid The user to search.
      * @return contextlist $contextlist The contextlist containing the list of contexts used in this plugin.
      */
-    public static function get_contexts_for_userid(int $userid) : contextlist {
+    public static function get_contexts_for_userid(int $userid): contextlist {
         $sql = "SELECT id
                   FROM {context}
                  WHERE instanceid = :userid AND contextlevel = :contextlevel";