import { Command as $Command } from "@smithy/smithy-client";
import type { MetadataBearer as __MetadataBearer } from "@smithy/types";
import type { ElastiCacheClientResolvedConfig, ServiceInputTypes, ServiceOutputTypes } from "../ElastiCacheClient";
import type { DescribeUserGroupsMessage, DescribeUserGroupsResult } from "../models/models_0";
/**
 * @public
 */
export type { __MetadataBearer };
export { $Command };
/**
 * @public
 *
 * The input for {@link DescribeUserGroupsCommand}.
 */
export interface DescribeUserGroupsCommandInput extends DescribeUserGroupsMessage {
}
/**
 * @public
 *
 * The output of {@link DescribeUserGroupsCommand}.
 */
export interface DescribeUserGroupsCommandOutput extends DescribeUserGroupsResult, __MetadataBearer {
}
declare const DescribeUserGroupsCommand_base: {
    new (input: DescribeUserGroupsCommandInput): import("@smithy/smithy-client").CommandImpl<DescribeUserGroupsCommandInput, DescribeUserGroupsCommandOutput, ElastiCacheClientResolvedConfig, ServiceInputTypes, ServiceOutputTypes>;
    new (...[input]: [] | [DescribeUserGroupsCommandInput]): import("@smithy/smithy-client").CommandImpl<DescribeUserGroupsCommandInput, DescribeUserGroupsCommandOutput, ElastiCacheClientResolvedConfig, ServiceInputTypes, ServiceOutputTypes>;
    getEndpointParameterInstructions(): import("@smithy/middleware-endpoint").EndpointParameterInstructions;
};
/**
 * <p>Returns a list of user groups.</p>
 * @example
 * Use a bare-bones client and the command you need to make an API call.
 * ```javascript
 * import { ElastiCacheClient, DescribeUserGroupsCommand } from "@aws-sdk/client-elasticache"; // ES Modules import
 * // const { ElastiCacheClient, DescribeUserGroupsCommand } = require("@aws-sdk/client-elasticache"); // CommonJS import
 * // import type { ElastiCacheClientConfig } from "@aws-sdk/client-elasticache";
 * const config = {}; // type is ElastiCacheClientConfig
 * const client = new ElastiCacheClient(config);
 * const input = { // DescribeUserGroupsMessage
 *   UserGroupId: "STRING_VALUE",
 *   MaxRecords: Number("int"),
 *   Marker: "STRING_VALUE",
 * };
 * const command = new DescribeUserGroupsCommand(input);
 * const response = await client.send(command);
 * // { // DescribeUserGroupsResult
 * //   UserGroups: [ // UserGroupList
 * //     { // UserGroup
 * //       UserGroupId: "STRING_VALUE",
 * //       Status: "STRING_VALUE",
 * //       Engine: "STRING_VALUE",
 * //       UserIds: [ // UserIdList
 * //         "STRING_VALUE",
 * //       ],
 * //       MinimumEngineVersion: "STRING_VALUE",
 * //       PendingChanges: { // UserGroupPendingChanges
 * //         UserIdsToRemove: [
 * //           "STRING_VALUE",
 * //         ],
 * //         UserIdsToAdd: [
 * //           "STRING_VALUE",
 * //         ],
 * //       },
 * //       ReplicationGroups: [ // UGReplicationGroupIdList
 * //         "STRING_VALUE",
 * //       ],
 * //       ServerlessCaches: [ // UGServerlessCacheIdList
 * //         "STRING_VALUE",
 * //       ],
 * //       ARN: "STRING_VALUE",
 * //     },
 * //   ],
 * //   Marker: "STRING_VALUE",
 * // };
 *
 * ```
 *
 * @param DescribeUserGroupsCommandInput - {@link DescribeUserGroupsCommandInput}
 * @returns {@link DescribeUserGroupsCommandOutput}
 * @see {@link DescribeUserGroupsCommandInput} for command's `input` shape.
 * @see {@link DescribeUserGroupsCommandOutput} for command's `response` shape.
 * @see {@link ElastiCacheClientResolvedConfig | config} for ElastiCacheClient's `config` shape.
 *
 * @throws {@link InvalidParameterCombinationException} (client fault)
 *  <p>Two or more incompatible parameters were specified.</p>
 *
 * @throws {@link ServiceLinkedRoleNotFoundFault} (client fault)
 *  <p>The specified service linked role (SLR) was not found.</p>
 *
 * @throws {@link UserGroupNotFoundFault} (client fault)
 *  <p>The user group was not found or does not exist</p>
 *
 * @throws {@link ElastiCacheServiceException}
 * <p>Base exception class for all service exceptions from ElastiCache service.</p>
 *
 *
 * @public
 */
export declare class DescribeUserGroupsCommand extends DescribeUserGroupsCommand_base {
    /** @internal type navigation helper, not in runtime. */
    protected static __types: {
        api: {
            input: DescribeUserGroupsMessage;
            output: DescribeUserGroupsResult;
        };
        sdk: {
            input: DescribeUserGroupsCommandInput;
            output: DescribeUserGroupsCommandOutput;
        };
    };
}