code: @Override
      public DeregisterInstancesFromLoadBalancerResult deregisterInstancesFromLoadBalancer(DeregisterInstancesFromLoadBalancerRequest request) {
          request = beforeClientExecution(request);
          return executeDeregisterInstancesFromLoadBalancer(request);
      }
docs: <p>
  Deregisters the specified instances from the specified load balancer. After the instance is deregistered, it no
  longer receives traffic from the load balancer.
  </p>
  <p>
  You can use <a>DescribeLoadBalancers</a> to verify that the instance is deregistered from the load balancer.
  </p>
  <p>
  For more information, see <a
  href="http://docs.aws.amazon.com/elasticloadbalancing/latest/classic/elb-deregister-register-instances.html"
  >Register or De-Register EC2 Instances</a> in the <i>Classic Load Balancers Guide</i>.
  </p>
  
  @param deregisterInstancesFromLoadBalancerRequest
  Contains the parameters for DeregisterInstancesFromLoadBalancer.
  @return Result of the DeregisterInstancesFromLoadBalancer operation returned by the service.
  @throws LoadBalancerNotFoundException
  The specified load balancer does not exist.
  @throws InvalidInstanceException
  The specified endpoint is not valid.
  @sample AmazonElasticLoadBalancing.DeregisterInstancesFromLoadBalancer
  @see <a
  href="http://docs.aws.amazon.com/goto/WebAPI/elasticloadbalancing-2012-06-01/DeregisterInstancesFromLoadBalancer"
  target="_top">AWS API Documentation</a>