public String getKmsKeyId() {
        return this.kmsKeyId;
    }
<p>
The Amazon Resource Name (ARN) of a key in Amazon Web Services KMS. SageMaker uses they key to encrypt the
artifacts of the optimized model when SageMaker uploads the model to Amazon S3.
</p>

@return The Amazon Resource Name (ARN) of a key in Amazon Web Services KMS. SageMaker uses they key to encrypt
        the artifacts of the optimized model when SageMaker uploads the model to Amazon S3.
aws-java-sdk-sagemaker/src/main/java/com/amazonaws/services/sagemaker/model/OptimizationJobOutputConfig.java