in core/src/main/scala/org/apache/pekko/projection/internal/ProjectionSerializer.scala [53:61]
override def manifest(o: AnyRef): String = o match {
case _: GetOffset[_] => GetOffsetManifest
case _: CurrentOffset[_] => CurrentOffsetManifest
case _: SetOffset[_] => SetOffsetManifest
case _: IsPaused => IsPausedManifest
case _: SetPaused => SetPausedManifest
case _ =>
throw new IllegalArgumentException(s"Can't serialize object of type ${o.getClass} in [${getClass.getName}]")
}