public java.util.List<DBParameterGroup> getDBParameterGroups() {
        if (dBParameterGroups == null) {
            dBParameterGroups = new com.amazonaws.internal.SdkInternalList<DBParameterGroup>();
        }
        return dBParameterGroups;
    }
<p>
A list of <code>DBParameterGroup</code> instances.
</p>

@return A list of <code>DBParameterGroup</code> instances.
aws-java-sdk-rds/src/main/java/com/amazonaws/services/rds/model/DescribeDBParameterGroupsResult.java