alias_attribute

# File activemodel/lib/active_model/attribute_methods.rb, line 223
      def alias_attribute(new_name, old_name)
        attribute_method_matchers.each do |matcher|
          matcher_new = matcher.method_name(new_name).to_s
          matcher_old = matcher.method_name(old_name).to_s
          define_optimized_call self, matcher_new, matcher_old
        end
      end