A container for the ARN of the SSE-KMS encryption. This property is read-only and follows the following format: arn:aws:kms:<i>us-east-1</i>:<i>example-account-id</i>:key/<i>example-9a73-4afc-8d29-8f5900cef44e</i>
arn:aws:kms:<i>us-east-1</i>:<i>example-account-id</i>:key/<i>example-9a73-4afc-8d29-8f5900cef44e</i>