AnnounceEvent example

$this->dispatcher->dispatch($event, WorkflowEvents::COMPLETED);
        $this->dispatcher->dispatch($event, sprintf('workflow.%s.completed', $this->name));
        $this->dispatcher->dispatch($event, sprintf('workflow.%s.completed.%s', $this->name, $transition->getName()));
    }

    private function announce(object $subject, Transition $initialTransition, Marking $marking, array $context): void
    {
        if (!$this->shouldDispatchEvent(WorkflowEvents::ANNOUNCE, $context)) {
            return;
        }

        $event = new AnnounceEvent($subject, $marking, $initialTransition, $this, $context);

        $this->dispatcher->dispatch($event, WorkflowEvents::ANNOUNCE);
        $this->dispatcher->dispatch($event, sprintf('workflow.%s.announce', $this->name));

        foreach ($this->getEnabledTransitions($subject) as $transition) {
            $this->dispatcher->dispatch($event, sprintf('workflow.%s.announce.%s', $this->name, $transition->getName()));
        }
    }

    private function shouldDispatchEvent(string $eventName, array $context): bool
    {