code: @Override
      public UnmonitorInstancesResult unmonitorInstances(UnmonitorInstancesRequest request) {
          request = beforeClientExecution(request);
          return executeUnmonitorInstances(request);
      }
docs: <p>
  Disables detailed monitoring for a running instance. For more information, see <a
  href="https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/using-cloudwatch.html">Monitoring Your Instances and
  Volumes</a> in the <i>Amazon Elastic Compute Cloud User Guide</i>.
  </p>
  
  @param unmonitorInstancesRequest
  @return Result of the UnmonitorInstances operation returned by the service.
  @sample AmazonEC2.UnmonitorInstances
  @see <a href="http://docs.aws.amazon.com/goto/WebAPI/ec2-2016-11-15/UnmonitorInstances" target="_top">AWS API
  Documentation</a>