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-rw-r--r--activerecord/lib/active_record/attribute_set.rb1
1 files changed, 1 insertions, 0 deletions
diff --git a/activerecord/lib/active_record/attribute_set.rb b/activerecord/lib/active_record/attribute_set.rb
index 01f9d815d5..76de68ac70 100644
--- a/activerecord/lib/active_record/attribute_set.rb
+++ b/activerecord/lib/active_record/attribute_set.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: true
require "active_record/attribute_set/builder"
require "active_record/attribute_set/yaml_encoder"