<DescribeLoadBalancerPolicyTypesResponse xmlns="http://elasticloadbalancing.amazonaws.com/doc/2012-06-01/">
  <DescribeLoadBalancerPolicyTypesResult>
    <PolicyTypeDescriptions>
      <member>
        <PolicyAttributeTypeDescriptions>
          <member>
            <AttributeName>PublicKey</AttributeName>
            <AttributeType>String</AttributeType>
            <Cardinality>ONE</Cardinality>
          </member>
        </PolicyAttributeTypeDescriptions>
        <PolicyTypeName>PublicKeyPolicyType</PolicyTypeName>
        <Description>Policy containing a list of public keys to accept when authenticating the back-end server(s). This policy cannot be applied directly to back-end servers or listeners but must be part of a BackendServerAuthenticationPolicyType.</Description>
      </member>
    </PolicyTypeDescriptions>
  </DescribeLoadBalancerPolicyTypesResult>
  <ResponseMetadata>
    <RequestId>261327c5-c3d7-11e1-8582-35377554a47d</RequestId>
  </ResponseMetadata>
</DescribeLoadBalancerPolicyTypesResponse>