https://pekko.apache.org/api/pekko/current/org/apache/pekko/event/DummyClassForStringSources.html
Apache Pekko 1.6.0 - org.apache.pekko.event.DummyClassForStringSources
Apache Pekko 1.6.0 - org.apache.pekko.event.DummyClassForStringSources
apachepekkoevent