code: @Override
      public DescribeDomainControllersResult describeDomainControllers(DescribeDomainControllersRequest request) {
          request = beforeClientExecution(request);
          return executeDescribeDomainControllers(request);
      }
docs: <p>
  Provides information about any domain controllers in your directory.
  </p>
  
  @param describeDomainControllersRequest
  @return Result of the DescribeDomainControllers operation returned by the service.
  @throws EntityDoesNotExistException
  The specified entity could not be found.
  @throws InvalidNextTokenException
  The <code>NextToken</code> value is not valid.
  @throws InvalidParameterException
  One or more parameters are not valid.
  @throws ClientException
  A client exception has occurred.
  @throws ServiceException
  An exception has occurred in AWS Directory Service.
  @throws UnsupportedOperationException
  The operation is not supported.
  @sample AWSDirectoryService.DescribeDomainControllers
  @see <a href="http://docs.aws.amazon.com/goto/WebAPI/ds-2015-04-16/DescribeDomainControllers" target="_top">AWS
  API Documentation</a>