I am looking for information related to the PublisherAction class.

I want to understand the behavior of the following API
PublisherAction publisherAction = new PublisherAction();
publisherAction.addAction(PublisherAction.POSASSY, true);
publisherAction.addAction(PublisherAction.PROCESSTYPE, "");
What is the difference when PublisherAction.POSASSY is set to true versus false? What is its purpose, and how does it affect the publishing process?
Also, what is the purpose of PublisherAction.PROCESSTYPE? What values can be passed to this parameter, and how do those values influence the publishing behavior?