    </td>

            
                <td class="attributes">
                
                    &lt;optional><br>
                

                

                
                </td>
            

            

            <td class="description last">Set this when the content type cannot be determined from the filename (params.file.path)</td>
        </tr>

    
    </tbody>
</table>

            </td>
        </tr>

    

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