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-rw-r--r--activerecord/test/models/tree.rb2
1 files changed, 2 insertions, 0 deletions
diff --git a/activerecord/test/models/tree.rb b/activerecord/test/models/tree.rb
index dc29cccc9c..77050c5fff 100644
--- a/activerecord/test/models/tree.rb
+++ b/activerecord/test/models/tree.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
class Tree < ActiveRecord::Base
has_many :nodes, dependent: :destroy
end