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-rw-r--r--actionmailer/test/mailers/params_mailer.rb2
1 files changed, 2 insertions, 0 deletions
diff --git a/actionmailer/test/mailers/params_mailer.rb b/actionmailer/test/mailers/params_mailer.rb
index 4c0fae6d91..84aa336311 100644
--- a/actionmailer/test/mailers/params_mailer.rb
+++ b/actionmailer/test/mailers/params_mailer.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
class ParamsMailer < ActionMailer::Base
before_action { @inviter, @invitee = params[:inviter], params[:invitee] }