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-rw-r--r--activerecord/test/models/image.rb2
1 files changed, 2 insertions, 0 deletions
diff --git a/activerecord/test/models/image.rb b/activerecord/test/models/image.rb
index 7ae8e4a7f6..b4808293cc 100644
--- a/activerecord/test/models/image.rb
+++ b/activerecord/test/models/image.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
class Image < ActiveRecord::Base
belongs_to :imageable, foreign_key: :imageable_identifier, foreign_type: :imageable_class
end