import type { MetadataBearer as __MetadataBearer } from "@smithy/types";
import type { DescribeLoadBalancerPolicyTypesInput, DescribeLoadBalancerPolicyTypesOutput } from "../models/models_0";
/**
 * @public
 */
export type { __MetadataBearer };
/**
 * @public
 *
 * The input for {@link DescribeLoadBalancerPolicyTypesCommand}.
 */
export interface DescribeLoadBalancerPolicyTypesCommandInput extends DescribeLoadBalancerPolicyTypesInput {
}
/**
 * @public
 *
 * The output of {@link DescribeLoadBalancerPolicyTypesCommand}.
 */
export interface DescribeLoadBalancerPolicyTypesCommandOutput extends DescribeLoadBalancerPolicyTypesOutput, __MetadataBearer {
}
declare const DescribeLoadBalancerPolicyTypesCommand_base: {
    new (input: DescribeLoadBalancerPolicyTypesCommandInput): import("@smithy/core/client").CommandImpl<DescribeLoadBalancerPolicyTypesCommandInput, DescribeLoadBalancerPolicyTypesCommandOutput, import("..").ElasticLoadBalancingClientResolvedConfig, import("..").ServiceInputTypes, import("..").ServiceOutputTypes>;
    new (...[input]: [] | [DescribeLoadBalancerPolicyTypesCommandInput]): import("@smithy/core/client").CommandImpl<DescribeLoadBalancerPolicyTypesCommandInput, DescribeLoadBalancerPolicyTypesCommandOutput, import("..").ElasticLoadBalancingClientResolvedConfig, import("..").ServiceInputTypes, import("..").ServiceOutputTypes>;
    getEndpointParameterInstructions(): import("@smithy/types").EndpointParameterInstructions;
};
/**
 * <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>
 * @example
 * Use a bare-bones client and the command you need to make an API call.
 * ```javascript
 * import { ElasticLoadBalancingClient, DescribeLoadBalancerPolicyTypesCommand } from "@aws-sdk/client-elastic-load-balancing"; // ES Modules import
 * // const { ElasticLoadBalancingClient, DescribeLoadBalancerPolicyTypesCommand } = require("@aws-sdk/client-elastic-load-balancing"); // CommonJS import
 * // import type { ElasticLoadBalancingClientConfig } from "@aws-sdk/client-elastic-load-balancing";
 * const config = {}; // type is ElasticLoadBalancingClientConfig
 * const client = new ElasticLoadBalancingClient(config);
 * const input = { // DescribeLoadBalancerPolicyTypesInput
 *   PolicyTypeNames: [ // PolicyTypeNames
 *     "STRING_VALUE",
 *   ],
 * };
 * const command = new DescribeLoadBalancerPolicyTypesCommand(input);
 * const response = await client.send(command);
 * // { // DescribeLoadBalancerPolicyTypesOutput
 * //   PolicyTypeDescriptions: [ // PolicyTypeDescriptions
 * //     { // PolicyTypeDescription
 * //       PolicyTypeName: "STRING_VALUE",
 * //       Description: "STRING_VALUE",
 * //       PolicyAttributeTypeDescriptions: [ // PolicyAttributeTypeDescriptions
 * //         { // PolicyAttributeTypeDescription
 * //           AttributeName: "STRING_VALUE",
 * //           AttributeType: "STRING_VALUE",
 * //           Description: "STRING_VALUE",
 * //           DefaultValue: "STRING_VALUE",
 * //           Cardinality: "STRING_VALUE",
 * //         },
 * //       ],
 * //     },
 * //   ],
 * // };
 *
 * ```
 *
 * @param DescribeLoadBalancerPolicyTypesCommandInput - {@link DescribeLoadBalancerPolicyTypesCommandInput}
 * @returns {@link DescribeLoadBalancerPolicyTypesCommandOutput}
 * @see {@link DescribeLoadBalancerPolicyTypesCommandInput} for command's `input` shape.
 * @see {@link DescribeLoadBalancerPolicyTypesCommandOutput} for command's `response` shape.
 * @see {@link ElasticLoadBalancingClientResolvedConfig | config} for ElasticLoadBalancingClient's `config` shape.
 *
 * @throws {@link PolicyTypeNotFoundException} (client fault)
 *  <p>One or more of the specified policy types do not exist.</p>
 *
 * @throws {@link ElasticLoadBalancingServiceException}
 * <p>Base exception class for all service exceptions from ElasticLoadBalancing service.</p>
 *
 *
 * @example To describe a load balancer policy type defined by Elastic Load Balancing
 * ```javascript
 * // This example describes the specified load balancer policy type.
 * const input = {
 *   PolicyTypeNames: [
 *     "ProxyProtocolPolicyType"
 *   ]
 * };
 * const command = new DescribeLoadBalancerPolicyTypesCommand(input);
 * const response = await client.send(command);
 * /* response is
 * {
 *   PolicyTypeDescriptions: [
 *     {
 *       Description: "Policy that controls whether to include the IP address and port of the originating request for TCP messages. This policy operates on TCP listeners only.",
 *       PolicyAttributeTypeDescriptions: [
 *         {
 *           AttributeName: "ProxyProtocol",
 *           AttributeType: "Boolean",
 *           Cardinality: "ONE"
 *         }
 *       ],
 *       PolicyTypeName: "ProxyProtocolPolicyType"
 *     }
 *   ]
 * }
 * *\/
 * ```
 *
 * @public
 */
export declare class DescribeLoadBalancerPolicyTypesCommand extends DescribeLoadBalancerPolicyTypesCommand_base {
    /** @internal type navigation helper, not in runtime. */
    protected static __types: {
        api: {
            input: DescribeLoadBalancerPolicyTypesInput;
            output: DescribeLoadBalancerPolicyTypesOutput;
        };
        sdk: {
            input: DescribeLoadBalancerPolicyTypesCommandInput;
            output: DescribeLoadBalancerPolicyTypesCommandOutput;
        };
    };
}