import { Command as $Command } from "@smithy/smithy-client";
import type { MetadataBearer as __MetadataBearer } from "@smithy/types";
import type { ClusterVersionsMessage, DescribeClusterVersionsMessage } from "../models/models_0";
import type { RedshiftClientResolvedConfig, ServiceInputTypes, ServiceOutputTypes } from "../RedshiftClient";
/**
 * @public
 */
export type { __MetadataBearer };
export { $Command };
/**
 * @public
 *
 * The input for {@link DescribeClusterVersionsCommand}.
 */
export interface DescribeClusterVersionsCommandInput extends DescribeClusterVersionsMessage {
}
/**
 * @public
 *
 * The output of {@link DescribeClusterVersionsCommand}.
 */
export interface DescribeClusterVersionsCommandOutput extends ClusterVersionsMessage, __MetadataBearer {
}
declare const DescribeClusterVersionsCommand_base: {
    new (input: DescribeClusterVersionsCommandInput): import("@smithy/smithy-client").CommandImpl<DescribeClusterVersionsCommandInput, DescribeClusterVersionsCommandOutput, RedshiftClientResolvedConfig, ServiceInputTypes, ServiceOutputTypes>;
    new (...[input]: [] | [DescribeClusterVersionsCommandInput]): import("@smithy/smithy-client").CommandImpl<DescribeClusterVersionsCommandInput, DescribeClusterVersionsCommandOutput, RedshiftClientResolvedConfig, ServiceInputTypes, ServiceOutputTypes>;
    getEndpointParameterInstructions(): import("@smithy/middleware-endpoint").EndpointParameterInstructions;
};
/**
 * <p>Returns descriptions of the available Amazon Redshift cluster versions. You can call this
 *             operation even before creating any clusters to learn more about the Amazon Redshift versions.
 *
 * For more information about managing clusters, go to
 * <a href="https://docs.aws.amazon.com/redshift/latest/mgmt/working-with-clusters.html">Amazon Redshift Clusters</a>
 * in the <i>Amazon Redshift Cluster Management Guide</i>.</p>
 * @example
 * Use a bare-bones client and the command you need to make an API call.
 * ```javascript
 * import { RedshiftClient, DescribeClusterVersionsCommand } from "@aws-sdk/client-redshift"; // ES Modules import
 * // const { RedshiftClient, DescribeClusterVersionsCommand } = require("@aws-sdk/client-redshift"); // CommonJS import
 * // import type { RedshiftClientConfig } from "@aws-sdk/client-redshift";
 * const config = {}; // type is RedshiftClientConfig
 * const client = new RedshiftClient(config);
 * const input = { // DescribeClusterVersionsMessage
 *   ClusterVersion: "STRING_VALUE",
 *   ClusterParameterGroupFamily: "STRING_VALUE",
 *   MaxRecords: Number("int"),
 *   Marker: "STRING_VALUE",
 * };
 * const command = new DescribeClusterVersionsCommand(input);
 * const response = await client.send(command);
 * // { // ClusterVersionsMessage
 * //   Marker: "STRING_VALUE",
 * //   ClusterVersions: [ // ClusterVersionList
 * //     { // ClusterVersion
 * //       ClusterVersion: "STRING_VALUE",
 * //       ClusterParameterGroupFamily: "STRING_VALUE",
 * //       Description: "STRING_VALUE",
 * //     },
 * //   ],
 * // };
 *
 * ```
 *
 * @param DescribeClusterVersionsCommandInput - {@link DescribeClusterVersionsCommandInput}
 * @returns {@link DescribeClusterVersionsCommandOutput}
 * @see {@link DescribeClusterVersionsCommandInput} for command's `input` shape.
 * @see {@link DescribeClusterVersionsCommandOutput} for command's `response` shape.
 * @see {@link RedshiftClientResolvedConfig | config} for RedshiftClient's `config` shape.
 *
 * @throws {@link RedshiftServiceException}
 * <p>Base exception class for all service exceptions from Redshift service.</p>
 *
 *
 * @public
 */
export declare class DescribeClusterVersionsCommand extends DescribeClusterVersionsCommand_base {
    /** @internal type navigation helper, not in runtime. */
    protected static __types: {
        api: {
            input: DescribeClusterVersionsMessage;
            output: ClusterVersionsMessage;
        };
        sdk: {
            input: DescribeClusterVersionsCommandInput;
            output: DescribeClusterVersionsCommandOutput;
        };
    };
}