public String getKmsKeyId() {
        return this.kmsKeyId;
    }
<p>
The Amazon Resource Name (ARN) of a Amazon Web Services Key Management Service key that SageMaker uses to encrypt
data on the storage volume attached to your notebook instance. The KMS key you provide must be enabled. For
information, see <a href="https://docs.aws.amazon.com/kms/latest/developerguide/enabling-keys.html">Enabling and
Disabling Keys</a> in the <i>Amazon Web Services Key Management Service Developer Guide</i>.
</p>

@return The Amazon Resource Name (ARN) of a Amazon Web Services Key Management Service key that SageMaker uses to
        encrypt data on the storage volume attached to your notebook instance. The KMS key you provide must be
        enabled. For information, see <a
        href="https://docs.aws.amazon.com/kms/latest/developerguide/enabling-keys.html">Enabling and Disabling
        Keys</a> in the <i>Amazon Web Services Key Management Service Developer Guide</i>.
aws-java-sdk-sagemaker/src/main/java/com/amazonaws/services/sagemaker/model/CreateNotebookInstanceRequest.java