lib/dynamoid/middleware/identity_map.rb in dynamoid-2.2.0 vs lib/dynamoid/middleware/identity_map.rb in dynamoid-3.0.0

@@ -1,4 +1,6 @@
+# frozen_string_literal: true
+
 module Dynamoid
   module Middleware
     class IdentityMap
       def initialize(app)
         @app = app