convert_value

# File activesupport/lib/active_support/hash_with_indifferent_access.rb, line 140
      def convert_value(value)
        if value.class == Hash
          self.class.new_from_hash_copying_default(value)
        elsif value.is_a?(Array)
          value.dup.replace(value.map { |e| convert_value(e) })
        else
          value
        end
      end