public String getKmsKeyId() {
        return this.kmsKeyId;
    }
<p>
The identifier of the KMS key used to encrypt the target snapshot. Available for Redis OSS and Serverless
Memcached only.
</p>

@return The identifier of the KMS key used to encrypt the target snapshot. Available for Redis OSS and Serverless
        Memcached only.
aws-java-sdk-elasticache/src/main/java/com/amazonaws/services/elasticache/model/CopyServerlessCacheSnapshotRequest.java