public void setQuantumTaskArn(String quantumTaskArn) {
        this.quantumTaskArn = quantumTaskArn;
    }
<p>
The ARN of the task to cancel.
</p>

@param quantumTaskArn
       The ARN of the task to cancel.
aws-java-sdk-braket/src/main/java/com/amazonaws/services/braket/model/CancelQuantumTaskRequest.java