import { Command as $Command } from "@smithy/core/client";
import type { MetadataBearer as __MetadataBearer } from "@smithy/types";
import type { DAXClientResolvedConfig, ServiceInputTypes, ServiceOutputTypes } from "../DAXClient";
import type { DescribeParameterGroupsRequest, DescribeParameterGroupsResponse } from "../models/models_0";
/**
 * @public
 */
export type { __MetadataBearer };
export { $Command };
/**
 * @public
 *
 * The input for {@link DescribeParameterGroupsCommand}.
 */
export interface DescribeParameterGroupsCommandInput extends DescribeParameterGroupsRequest {
}
/**
 * @public
 *
 * The output of {@link DescribeParameterGroupsCommand}.
 */
export interface DescribeParameterGroupsCommandOutput extends DescribeParameterGroupsResponse, __MetadataBearer {
}
declare const DescribeParameterGroupsCommand_base: {
    new (input: DescribeParameterGroupsCommandInput): import("@smithy/core/client").CommandImpl<DescribeParameterGroupsCommandInput, DescribeParameterGroupsCommandOutput, DAXClientResolvedConfig, ServiceInputTypes, ServiceOutputTypes>;
    new (...[input]: [] | [DescribeParameterGroupsCommandInput]): import("@smithy/core/client").CommandImpl<DescribeParameterGroupsCommandInput, DescribeParameterGroupsCommandOutput, DAXClientResolvedConfig, ServiceInputTypes, ServiceOutputTypes>;
    getEndpointParameterInstructions(): {
        [x: string]: unknown;
    };
};
/**
 * <p>Returns a list of parameter group descriptions. If a parameter group name is
 *             specified, the list will contain only the descriptions for that group.</p>
 * @example
 * Use a bare-bones client and the command you need to make an API call.
 * ```javascript
 * import { DAXClient, DescribeParameterGroupsCommand } from "@aws-sdk/client-dax"; // ES Modules import
 * // const { DAXClient, DescribeParameterGroupsCommand } = require("@aws-sdk/client-dax"); // CommonJS import
 * // import type { DAXClientConfig } from "@aws-sdk/client-dax";
 * const config = {}; // type is DAXClientConfig
 * const client = new DAXClient(config);
 * const input = { // DescribeParameterGroupsRequest
 *   ParameterGroupNames: [ // ParameterGroupNameList
 *     "STRING_VALUE",
 *   ],
 *   MaxResults: Number("int"),
 *   NextToken: "STRING_VALUE",
 * };
 * const command = new DescribeParameterGroupsCommand(input);
 * const response = await client.send(command);
 * // { // DescribeParameterGroupsResponse
 * //   NextToken: "STRING_VALUE",
 * //   ParameterGroups: [ // ParameterGroupList
 * //     { // ParameterGroup
 * //       ParameterGroupName: "STRING_VALUE",
 * //       Description: "STRING_VALUE",
 * //     },
 * //   ],
 * // };
 *
 * ```
 *
 * @param DescribeParameterGroupsCommandInput - {@link DescribeParameterGroupsCommandInput}
 * @returns {@link DescribeParameterGroupsCommandOutput}
 * @see {@link DescribeParameterGroupsCommandInput} for command's `input` shape.
 * @see {@link DescribeParameterGroupsCommandOutput} for command's `response` shape.
 * @see {@link DAXClientResolvedConfig | config} for DAXClient's `config` shape.
 *
 * @throws {@link InvalidParameterCombinationException} (client fault)
 *  <p>Two or more incompatible parameters were specified.</p>
 *
 * @throws {@link InvalidParameterValueException} (client fault)
 *  <p>The value for a parameter is invalid.</p>
 *
 * @throws {@link ParameterGroupNotFoundFault} (client fault)
 *  <p>The specified parameter group does not exist.</p>
 *
 * @throws {@link ServiceLinkedRoleNotFoundFault} (client fault)
 *  <p>The specified service linked role (SLR) was not found.</p>
 *
 * @throws {@link DAXServiceException}
 * <p>Base exception class for all service exceptions from DAX service.</p>
 *
 *
 * @public
 */
export declare class DescribeParameterGroupsCommand extends DescribeParameterGroupsCommand_base {
    /** @internal type navigation helper, not in runtime. */
    protected static __types: {
        api: {
            input: DescribeParameterGroupsRequest;
            output: DescribeParameterGroupsResponse;
        };
        sdk: {
            input: DescribeParameterGroupsCommandInput;
            output: DescribeParameterGroupsCommandOutput;
        };
    };
}