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

@param additionalAttributes
       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