public void setClientToken(String clientToken) {
        this.clientToken = clientToken;
    }
<p>
A unique case-sensitive identifier that you can provide to ensure the idempotency of the request. Don't reuse
this client token if a new idempotent request is required.
</p>

@param clientToken
       A unique case-sensitive identifier that you can provide to ensure the idempotency of the request. Don't
       reuse this client token if a new idempotent request is required.
aws-java-sdk-iot/src/main/java/com/amazonaws/services/iot/model/UpdatePackageConfigurationRequest.java