 to skip the stage if it returns false.</td>
                        </tr>
                        
                        <tr class="altColor">
                            <td class="colFirst"><code><strong><a href='http://docs.groovy-lang.org/latest/html/api/groovy/lang/Closure.html' title='Closure'>Closure</a></strong></code>&nbsp;</td>
                            <td class="colLast"><code><a href="#stage">stage</a></code><br>The operation to execute for the stage.</td>
                        </tr>
   