import { ClientSDK, RequestOptions } from "../lib/sdks.js";
import * as operations from "../models/operations/index.js";
export declare class NovuSubscribers extends ClientSDK {
    /**
     * Check topic subscriber
     *
     * @remarks
     * Check if a subscriber belongs to a certain topic
     */
    retrieve(externalSubscriberId: string, topicKey: string, idempotencyKey?: string | undefined, options?: RequestOptions): Promise<operations.TopicsV1ControllerGetTopicSubscriberResponse>;
}
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