code: @Override
      public GetPipelineDefinitionResult getPipelineDefinition(GetPipelineDefinitionRequest request) {
          request = beforeClientExecution(request);
          return executeGetPipelineDefinition(request);
      }
docs: <p>
  Gets the definition of the specified pipeline. You can call <code>GetPipelineDefinition</code> to retrieve the
  pipeline definition that you provided using <a>PutPipelineDefinition</a>.
  </p>
  
  @param getPipelineDefinitionRequest
  Contains the parameters for GetPipelineDefinition.
  @return Result of the GetPipelineDefinition operation returned by the service.
  @throws InternalServiceErrorException
  An internal service error occurred.
  @throws InvalidRequestException
  The request was not valid. Verify that your request was properly formatted, that the signature was
  generated with the correct credentials, and that you haven't exceeded any of the service limits for your
  account.
  @throws PipelineNotFoundException
  The specified pipeline was not found. Verify that you used the correct user and account identifiers.
  @throws PipelineDeletedException
  The specified pipeline has been deleted.
  @sample DataPipeline.GetPipelineDefinition
  @see <a href="http://docs.aws.amazon.com/goto/WebAPI/datapipeline-2012-10-29/GetPipelineDefinition"
  target="_top">AWS API Documentation</a>