<div class="umb-editor umb-radiobuttons">
    <ul class="unstyled">
        <li ng-repeat="(key, val) in model.config.items">
            <label class="radio">
                <input type="radio" name="checkboxlist"
                       value="{{key}}"
                       ng-model="model.value" />
                {{val}}
            </label>
        </li>
    </ul>    
</div>