import { Command as $Command } from "@smithy/smithy-client";
import type { MetadataBearer as __MetadataBearer } from "@smithy/types";
import type { ChimeSDKMessagingClientResolvedConfig, ServiceInputTypes, ServiceOutputTypes } from "../ChimeSDKMessagingClient";
import type { ListSubChannelsRequest, ListSubChannelsResponse } from "../models/models_0";
/**
 * @public
 */
export type { __MetadataBearer };
export { $Command };
/**
 * @public
 *
 * The input for {@link ListSubChannelsCommand}.
 */
export interface ListSubChannelsCommandInput extends ListSubChannelsRequest {
}
/**
 * @public
 *
 * The output of {@link ListSubChannelsCommand}.
 */
export interface ListSubChannelsCommandOutput extends ListSubChannelsResponse, __MetadataBearer {
}
declare const ListSubChannelsCommand_base: {
    new (input: ListSubChannelsCommandInput): import("@smithy/smithy-client").CommandImpl<ListSubChannelsCommandInput, ListSubChannelsCommandOutput, ChimeSDKMessagingClientResolvedConfig, ServiceInputTypes, ServiceOutputTypes>;
    new (input: ListSubChannelsCommandInput): import("@smithy/smithy-client").CommandImpl<ListSubChannelsCommandInput, ListSubChannelsCommandOutput, ChimeSDKMessagingClientResolvedConfig, ServiceInputTypes, ServiceOutputTypes>;
    getEndpointParameterInstructions(): import("@smithy/middleware-endpoint").EndpointParameterInstructions;
};
/**
 * <p>Lists all the SubChannels in an elastic channel when given a channel ID. Available only to the app instance admins and channel moderators of elastic channels.</p>
 * @example
 * Use a bare-bones client and the command you need to make an API call.
 * ```javascript
 * import { ChimeSDKMessagingClient, ListSubChannelsCommand } from "@aws-sdk/client-chime-sdk-messaging"; // ES Modules import
 * // const { ChimeSDKMessagingClient, ListSubChannelsCommand } = require("@aws-sdk/client-chime-sdk-messaging"); // CommonJS import
 * // import type { ChimeSDKMessagingClientConfig } from "@aws-sdk/client-chime-sdk-messaging";
 * const config = {}; // type is ChimeSDKMessagingClientConfig
 * const client = new ChimeSDKMessagingClient(config);
 * const input = { // ListSubChannelsRequest
 *   ChannelArn: "STRING_VALUE", // required
 *   ChimeBearer: "STRING_VALUE", // required
 *   MaxResults: Number("int"),
 *   NextToken: "STRING_VALUE",
 * };
 * const command = new ListSubChannelsCommand(input);
 * const response = await client.send(command);
 * // { // ListSubChannelsResponse
 * //   ChannelArn: "STRING_VALUE",
 * //   SubChannels: [ // SubChannelSummaryList
 * //     { // SubChannelSummary
 * //       SubChannelId: "STRING_VALUE",
 * //       MembershipCount: Number("int"),
 * //     },
 * //   ],
 * //   NextToken: "STRING_VALUE",
 * // };
 *
 * ```
 *
 * @param ListSubChannelsCommandInput - {@link ListSubChannelsCommandInput}
 * @returns {@link ListSubChannelsCommandOutput}
 * @see {@link ListSubChannelsCommandInput} for command's `input` shape.
 * @see {@link ListSubChannelsCommandOutput} for command's `response` shape.
 * @see {@link ChimeSDKMessagingClientResolvedConfig | config} for ChimeSDKMessagingClient's `config` shape.
 *
 * @throws {@link BadRequestException} (client fault)
 *  <p>The input parameters don't match the service's restrictions.</p>
 *
 * @throws {@link ForbiddenException} (client fault)
 *  <p>The client is permanently forbidden from making the request.</p>
 *
 * @throws {@link ServiceFailureException} (server fault)
 *  <p>The service encountered an unexpected error.</p>
 *
 * @throws {@link ServiceUnavailableException} (server fault)
 *  <p>The service is currently unavailable.</p>
 *
 * @throws {@link ThrottledClientException} (client fault)
 *  <p>The client exceeded its request rate limit.</p>
 *
 * @throws {@link UnauthorizedClientException} (client fault)
 *  <p>The client is not currently authorized to make the request.</p>
 *
 * @throws {@link ChimeSDKMessagingServiceException}
 * <p>Base exception class for all service exceptions from ChimeSDKMessaging service.</p>
 *
 *
 * @public
 */
export declare class ListSubChannelsCommand extends ListSubChannelsCommand_base {
    /** @internal type navigation helper, not in runtime. */
    protected static __types: {
        api: {
            input: ListSubChannelsRequest;
            output: ListSubChannelsResponse;
        };
        sdk: {
            input: ListSubChannelsCommandInput;
            output: ListSubChannelsCommandOutput;
        };
    };
}