import { Command as $Command } from "@smithy/smithy-client";
import { MetadataBearer as __MetadataBearer } from "@smithy/types";
import { ListHubsRequest, ListHubsResponse } from "../models/models_4";
import { SageMakerClientResolvedConfig, ServiceInputTypes, ServiceOutputTypes } from "../SageMakerClient";
/**
 * @public
 */
export type { __MetadataBearer };
export { $Command };
/**
 * @public
 *
 * The input for {@link ListHubsCommand}.
 */
export interface ListHubsCommandInput extends ListHubsRequest {
}
/**
 * @public
 *
 * The output of {@link ListHubsCommand}.
 */
export interface ListHubsCommandOutput extends ListHubsResponse, __MetadataBearer {
}
declare const ListHubsCommand_base: {
    new (input: ListHubsCommandInput): import("@smithy/smithy-client").CommandImpl<ListHubsCommandInput, ListHubsCommandOutput, SageMakerClientResolvedConfig, ServiceInputTypes, ServiceOutputTypes>;
    new (...[input]: [] | [ListHubsCommandInput]): import("@smithy/smithy-client").CommandImpl<ListHubsCommandInput, ListHubsCommandOutput, SageMakerClientResolvedConfig, ServiceInputTypes, ServiceOutputTypes>;
    getEndpointParameterInstructions(): import("@smithy/middleware-endpoint").EndpointParameterInstructions;
};
/**
 * <p>List all existing hubs.</p>
 * @example
 * Use a bare-bones client and the command you need to make an API call.
 * ```javascript
 * import { SageMakerClient, ListHubsCommand } from "@aws-sdk/client-sagemaker"; // ES Modules import
 * // const { SageMakerClient, ListHubsCommand } = require("@aws-sdk/client-sagemaker"); // CommonJS import
 * const client = new SageMakerClient(config);
 * const input = { // ListHubsRequest
 *   NameContains: "STRING_VALUE",
 *   CreationTimeBefore: new Date("TIMESTAMP"),
 *   CreationTimeAfter: new Date("TIMESTAMP"),
 *   LastModifiedTimeBefore: new Date("TIMESTAMP"),
 *   LastModifiedTimeAfter: new Date("TIMESTAMP"),
 *   SortBy: "HubName" || "CreationTime" || "HubStatus" || "AccountIdOwner",
 *   SortOrder: "Ascending" || "Descending",
 *   MaxResults: Number("int"),
 *   NextToken: "STRING_VALUE",
 * };
 * const command = new ListHubsCommand(input);
 * const response = await client.send(command);
 * // { // ListHubsResponse
 * //   HubSummaries: [ // HubInfoList // required
 * //     { // HubInfo
 * //       HubName: "STRING_VALUE", // required
 * //       HubArn: "STRING_VALUE", // required
 * //       HubDisplayName: "STRING_VALUE",
 * //       HubDescription: "STRING_VALUE",
 * //       HubSearchKeywords: [ // HubSearchKeywordList
 * //         "STRING_VALUE",
 * //       ],
 * //       HubStatus: "InService" || "Creating" || "Updating" || "Deleting" || "CreateFailed" || "UpdateFailed" || "DeleteFailed", // required
 * //       CreationTime: new Date("TIMESTAMP"), // required
 * //       LastModifiedTime: new Date("TIMESTAMP"), // required
 * //     },
 * //   ],
 * //   NextToken: "STRING_VALUE",
 * // };
 *
 * ```
 *
 * @param ListHubsCommandInput - {@link ListHubsCommandInput}
 * @returns {@link ListHubsCommandOutput}
 * @see {@link ListHubsCommandInput} for command's `input` shape.
 * @see {@link ListHubsCommandOutput} for command's `response` shape.
 * @see {@link SageMakerClientResolvedConfig | config} for SageMakerClient's `config` shape.
 *
 * @throws {@link SageMakerServiceException}
 * <p>Base exception class for all service exceptions from SageMaker service.</p>
 *
 *
 * @public
 */
export declare class ListHubsCommand extends ListHubsCommand_base {
    /** @internal type navigation helper, not in runtime. */
    protected static __types: {
        api: {
            input: ListHubsRequest;
            output: ListHubsResponse;
        };
        sdk: {
            input: ListHubsCommandInput;
            output: ListHubsCommandOutput;
        };
    };
}