@SdkInternalApi
    final DescribeLoadBalancerPolicyTypesResult executeDescribeLoadBalancerPolicyTypes(
            DescribeLoadBalancerPolicyTypesRequest describeLoadBalancerPolicyTypesRequest) {

        ExecutionContext executionContext = createExecutionContext(describeLoadBalancerPolicyTypesRequest);
        AWSRequestMetrics awsRequestMetrics = executionContext.getAwsRequestMetrics();
        awsRequestMetrics.startEvent(Field.ClientExecuteTime);
        Request<DescribeLoadBalancerPolicyTypesRequest> request = null;
        Response<DescribeLoadBalancerPolicyTypesResult> response = null;

        try {
            awsRequestMetrics.startEvent(Field.RequestMarshallTime);
            try {
                request = new DescribeLoadBalancerPolicyTypesRequestMarshaller().marshall(super.beforeMarshalling(describeLoadBalancerPolicyTypesRequest));
                // Binds the request metrics to the current request.
                request.setAWSRequestMetrics(awsRequestMetrics);
                request.addHandlerContext(HandlerContextKey.CLIENT_ENDPOINT, endpoint);
                request.addHandlerContext(HandlerContextKey.ENDPOINT_OVERRIDDEN, isEndpointOverridden());
                request.addHandlerContext(HandlerContextKey.SIGNING_REGION, getSigningRegion());
                request.addHandlerContext(HandlerContextKey.SERVICE_ID, "Elastic Load Balancing");
                request.addHandlerContext(HandlerContextKey.OPERATION_NAME, "DescribeLoadBalancerPolicyTypes");
                request.addHandlerContext(HandlerContextKey.ADVANCED_CONFIG, advancedConfig);

            } finally {
                awsRequestMetrics.endEvent(Field.RequestMarshallTime);
            }

            StaxResponseHandler<DescribeLoadBalancerPolicyTypesResult> responseHandler = new StaxResponseHandler<DescribeLoadBalancerPolicyTypesResult>(
                    new DescribeLoadBalancerPolicyTypesResultStaxUnmarshaller());

            response = invoke(request, responseHandler, executionContext);

            return response.getAwsResponse();

        } finally {

            endClientExecution(awsRequestMetrics, request, response);
        }
    }
<p>
Describes the specified load balancer policy types or all load balancer policy types.
</p>
<p>
The description of each type indicates how it can be used. For example, some policies can be used only with layer
7 listeners, some policies can be used only with layer 4 listeners, and some policies can be used only with your
EC2 instances.
</p>
<p>
You can use <a>CreateLoadBalancerPolicy</a> to create a policy configuration for any of these policy types. Then,
depending on the policy type, use either <a>SetLoadBalancerPoliciesOfListener</a> or
<a>SetLoadBalancerPoliciesForBackendServer</a> to set the policy.
</p>

@param describeLoadBalancerPolicyTypesRequest
       Contains the parameters for DescribeLoadBalancerPolicyTypes.
@return Result of the DescribeLoadBalancerPolicyTypes operation returned by the service.
@throws PolicyTypeNotFoundException
        One or more of the specified policy types do not exist.
@sample AmazonElasticLoadBalancing.DescribeLoadBalancerPolicyTypes
@see <a
     href="http://docs.aws.amazon.com/goto/WebAPI/elasticloadbalancing-2012-06-01/DescribeLoadBalancerPolicyTypes"
     target="_top">AWS API Documentation</a>
aws-java-sdk-elasticloadbalancing/src/main/java/com/amazonaws/services/elasticloadbalancing/AmazonElasticLoadBalancingClient.java