code: @Override
      public UpdateJobResult updateJob(UpdateJobRequest request) {
          request = beforeClientExecution(request);
          return executeUpdateJob(request);
      }
docs: <p>
  Updates supported fields of the specified job.
  </p>
  
  @param updateJobRequest
  @return Result of the UpdateJob operation returned by the service.
  @throws InvalidRequestException
  The request is not valid.
  @throws ResourceNotFoundException
  The specified resource does not exist.
  @throws ThrottlingException
  The rate exceeds the limit.
  @throws ServiceUnavailableException
  The service is temporarily unavailable.
  @sample AWSIot.UpdateJob