https://pekko.apache.org/api/pekko/current/org/apache/pekko/persistence/fsm/AbstractPersistentFSM.html
Apache Pekko 1.6.0 - org.apache.pekko.persistence.fsm.AbstractPersistentFSM
Apache Pekko 1.6.0 - org.apache.pekko.persistence.fsm.AbstractPersistentFSM
apachepekkopersistencefsm