public function configureWidgets(WidgetsList $widgetsList, ReportWidgetFactory $factory)
{
$widgetsList->addWidgetConfig($factory->createWidget()->setSubcategoryId('Sparklines')->forceViewDataTable(Sparklines::ID));
$widgetsList->addWidgetConfig($factory->createWidget()->setName('ExampleUI_TemperaturesEvolution')->setSubcategoryId('Evolution Graph')->forceViewDataTable(Evolution::ID)->setParameters(array('columns' => array('server1', 'server2'))));
}