code: @Override
      public DescribeListenerCertificatesResult describeListenerCertificates(DescribeListenerCertificatesRequest request) {
          request = beforeClientExecution(request);
          return executeDescribeListenerCertificates(request);
      }
docs: <p>
  Describes the certificates for the specified HTTPS listener.
  </p>
  
  @param describeListenerCertificatesRequest
  @return Result of the DescribeListenerCertificates operation returned by the service.
  @throws ListenerNotFoundException
  The specified listener does not exist.
  @sample AmazonElasticLoadBalancing.DescribeListenerCertificates
  @see <a
  href="http://docs.aws.amazon.com/goto/WebAPI/elasticloadbalancingv2-2015-12-01/DescribeListenerCertificates"
  target="_top">AWS API Documentation</a>