code: @Override
      public UpdateTrustResult updateTrust(UpdateTrustRequest request) {
          request = beforeClientExecution(request);
          return executeUpdateTrust(request);
      }
docs: <p>
  Updates the trust that has been set up between your AWS Managed Microsoft AD directory and an on-premises Active
  Directory.
  </p>
  
  @param updateTrustRequest
  @return Result of the UpdateTrust operation returned by the service.
  @throws EntityDoesNotExistException
  The specified entity could not be found.
  @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.
  @sample AWSDirectoryService.UpdateTrust
  @see <a href="http://docs.aws.amazon.com/goto/WebAPI/ds-2015-04-16/UpdateTrust" target="_top">AWS API
  Documentation</a>