public java.util.Map<String, String> getAdditionalAttributes() {
        return additionalAttributes;
    }
<p>
Metadata about a given registration which is specific to that registration type.
</p>

@return Metadata about a given registration which is specific to that registration type.
aws-java-sdk-pinpointsmsvoicev2/src/main/java/com/amazonaws/services/pinpointsmsvoicev2/model/CreateRegistrationResult.java