code: @Override
      public ListIPSetsResult listIPSets(ListIPSetsRequest request) {
          request = beforeClientExecution(request);
          return executeListIPSets(request);
      }
docs: Lists the IPSets of the GuardDuty service specified by the detector ID.
  
  @param listIPSetsRequest
  @return Result of the ListIPSets operation returned by the service.
  @throws BadRequestException
  400 response
  @throws InternalServerErrorException
  500 response
  @sample AmazonGuardDuty.ListIPSets
  @see <a href="http://docs.aws.amazon.com/goto/WebAPI/guardduty-2017-11-28/ListIPSets" target="_top">AWS API
  Documentation</a>