/**
* @param Request $request
* @param Visitor $visitor
* @param Action|null $action
* @param GoalManager $goalManager
*
* @return mixed|false
*/
public function onGoalConversion(Request $request, Visitor $visitor, $action, GoalManager $goalManager)
{
$defaultRevenue = $goalManager->getGoalColumn('revenue');
$revenue = $request->getGoalRevenue($defaultRevenue);
return $this->roundRevenueIfNeeded($revenue);
}