public void setKeyArn(String keyArn) {
        this.keyArn = keyArn;
    }
<p>
The ARN for a KMS key that is used to encrypt studio data.
</p>

@param keyArn
       The ARN for a KMS key that is used to encrypt studio data.
aws-java-sdk-nimblestudio/src/main/java/com/amazonaws/services/nimblestudio/model/StudioEncryptionConfiguration.java