code: public function update(JobInterface $job)
      {
          $existingJob = $this->jobManager->findByTicket($job->getTicket());
          if (null == $existingJob) {
              return $this->add($job);
          }
  
          $this->logger->debug('Update job ' . $job->getTicket(), ['job' => $job]);
  
          $job = $this->helper->copyJob($job, $existingJob);
  
          if (null != $this->validator) {
              $errors = $this->validator->validate($job);
              if (count($errors) > 0) {
                  throw new ValidationFailedException($errors);
              }
          }
  
          $this->jobManager->save($job);
  
          $this->getJobLogger($job)->debug('Updated job', ['job' => $job]);
  
          return $job;
      }
docs: {@inheritdoc}