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-rw-r--r--activemodel/test/models/topic.rb2
1 files changed, 2 insertions, 0 deletions
diff --git a/activemodel/test/models/topic.rb b/activemodel/test/models/topic.rb
index 192786c096..2f4e92c3b2 100644
--- a/activemodel/test/models/topic.rb
+++ b/activemodel/test/models/topic.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
class Topic
include ActiveModel::Validations
include ActiveModel::Validations::Callbacks