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-rw-r--r--activerecord/examples/performance.rb2
1 files changed, 2 insertions, 0 deletions
diff --git a/activerecord/examples/performance.rb b/activerecord/examples/performance.rb
index 3257dd4ad7..1a2c78f39b 100644
--- a/activerecord/examples/performance.rb
+++ b/activerecord/examples/performance.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
require "active_record"
require "benchmark/ips"