Eloquent\Phony\Event\EventOrderVerifier::mergeEvents PHP Method

    private function mergeEvents($events)
    {
        $merged = array();
        foreach ($events as $event) {
            if ($event instanceof Event) {
                $merged[$event->sequenceNumber()] = $event;
            } else {
                foreach ($event->allEvents() as $subEvent) {
                    $merged[$subEvent->sequenceNumber()] = $subEvent;
                }
            }
        }
        ksort($merged);
        return array_values($merged);
    }