code: @Override
      public StartApplicationResult startApplication(StartApplicationRequest request) {
          request = beforeClientExecution(request);
          return executeStartApplication(request);
      }
docs: <p>
  Starts the specified Amazon Kinesis Data Analytics application. After creating an application, you must
  exclusively call this operation to start your application.
  </p>
  <note>
  <p>
  SQL is not enabled for this private beta. Using SQL parameters (such as
  <a>RunConfiguration$SqlRunConfigurations</a>) will result in an error.
  </p>
  </note>
  
  @param startApplicationRequest
  @return Result of the StartApplication operation returned by the service.
  @throws ResourceNotFoundException
  Specified application can't be found.
  @throws ResourceInUseException
  The application is not available for this operation.
  @throws InvalidArgumentException
  The specified input parameter value is not valid.
  @throws InvalidApplicationConfigurationException
  The user-provided application configuration is not valid.
  @throws InvalidRequestException
  The request JSON is not valid for the operation.
  @sample AmazonKinesisAnalyticsV2.StartApplication
  @see <a href="http://docs.aws.amazon.com/goto/WebAPI/kinesisanalyticsv2-2018-05-23/StartApplication"
  target="_top">AWS API Documentation</a>