General A/B testing.

[wolnelektury.git] / src / catalogue / api / helpers.py

diff --git a/src/catalogue/api/helpers.py b/src/catalogue/api/helpers.py
index d872dde..6813e03 100644 (file)
--- a/src/catalogue/api/helpers.py
+++ b/src/catalogue/api/helpers.py
@@ -1,3 +1,6 @@
+# This file is part of Wolnelektury, licensed under GNU Affero GPLv3 or later.
+# Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
+#
 from django.db.models import Q
 from catalogue.models import Book