public String getKmsKeyArn() {
        return this.kmsKeyArn;
    }
<p>
The ARN of the KMS key that customer use to encrypt their Amazon S3 bucket. Only use this field if your bucket is
encrypted using a customer managed KMS key.
</p>

@return The ARN of the KMS key that customer use to encrypt their Amazon S3 bucket. Only use this field if your
        bucket is encrypted using a customer managed KMS key.
aws-java-sdk-lexmodelsv2/src/main/java/com/amazonaws/services/lexmodelsv2/model/S3BucketTranscriptSource.java