public String getClientRequestToken() {
        return this.clientRequestToken;
    }
<p>
Idempotent token used to identify the request to <code>AssociateFaces</code>. If you use the same token with
multiple <code>AssociateFaces</code> requests, the same response is returned. Use ClientRequestToken to prevent
the same request from being processed more than once.
</p>

@return Idempotent token used to identify the request to <code>AssociateFaces</code>. If you use the same token
        with multiple <code>AssociateFaces</code> requests, the same response is returned. Use ClientRequestToken
        to prevent the same request from being processed more than once.
aws-java-sdk-rekognition/src/main/java/com/amazonaws/services/rekognition/model/AssociateFacesRequest.java