luster to get stats from</td>
        </tr>

    

        <tr>
            
                <td class="name"><code>callback</code></td>
            

            <td class="type">
            
            </td>

            

            

            <td class="description last">The callback.</td>
        </tr>

    
    </tbody>
</table>






<dl class="details">

    

    

    

    

    

    

    

    

    

    

    

    

    
    <dt class="tag-source">Source:</dt>
    <dd class="tag-sourc