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-rw-r--r--ext/psych/lib/psych/coder.rb1
1 files changed, 1 insertions, 0 deletions
diff --git a/ext/psych/lib/psych/coder.rb b/ext/psych/lib/psych/coder.rb
index 2b830d2..26005f5 100644
--- a/ext/psych/lib/psych/coder.rb
+++ b/ext/psych/lib/psych/coder.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: false
module Psych
###
# If an object defines +encode_with+, then an instance of Psych::Coder will