public String getUserGroupId() {
        return this.userGroupId;
    }
<p>
The identifier of the UserGroup to be associated with the serverless cache. Available for Redis OSS only. Default
is NULL - the existing UserGroup is not removed.
</p>

@return The identifier of the UserGroup to be associated with the serverless cache. Available for Redis OSS only.
        Default is NULL - the existing UserGroup is not removed.
aws-java-sdk-elasticache/src/main/java/com/amazonaws/services/elasticache/model/ModifyServerlessCacheRequest.java