code: @Override
      public AcknowledgeJobResult acknowledgeJob(AcknowledgeJobRequest request) {
          request = beforeClientExecution(request);
          return executeAcknowledgeJob(request);
      }
docs: <p>
  Returns information about a specified job and whether that job has been received by the job worker. Only used for
  custom actions.
  </p>
  
  @param acknowledgeJobRequest
  Represents the input of an AcknowledgeJob action.
  @return Result of the AcknowledgeJob operation returned by the service.
  @throws ValidationException
  The validation was specified in an invalid format.
  @throws InvalidNonceException
  The specified nonce was specified in an invalid format.
  @throws JobNotFoundException
  The specified job was specified in an invalid format or cannot be found.
  @sample AWSCodePipeline.AcknowledgeJob
  @see <a href="http://docs.aws.amazon.com/goto/WebAPI/codepipeline-2015-07-09/AcknowledgeJob" target="_top">AWS
  API Documentation</a>