# File lib/moped/protocol/reply.rb, line 123
      def unauthorized?
        result = documents[0]
        return false if result.nil?
        err = error_message(result)
        UNAUTHORIZED.include?(result["code"]) ||
          UNAUTHORIZED.include?(result["assertionCode"]) ||
          (err && (err =~ /unauthorized/ || err =~ /not authorized/))
      end