public void setClientToken(String clientToken) {
        this.clientToken = clientToken;
    }
<p>
Optional user provided token used for ensuring idempotency.
</p>

@param clientToken
       Optional user provided token used for ensuring idempotency.
aws-java-sdk-healthlake/src/main/java/com/amazonaws/services/healthlake/model/CreateFHIRDatastoreRequest.java