# File lib/aws/route_53/resource_record_set.rb, line 153
      def exists?
        !get_resource.data[:resource_record_sets].find { |details|
          if set_identifier
            details[:name] == name and details[:type] == type and details[:set_identifier] == set_identifier
          else
            details[:name] == name and details[:type] == type
          end
        }.nil?
      end