import { ApiKeyCredentials } from "@azure/ms-rest-js";
/**
 * Creates a new CognitiveServicesCredentials object.
 */
export declare class TopicCredentials extends ApiKeyCredentials {
    /**
     * Creates a new EventGrid TopicCredentials object.
     *
     * @constructor
     * @param {string} topicKey   The EventGrid topic key
     */
    constructor(topicKey: string);
}
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