cluster-sharding/src/main/scala/org/apache/pekko/cluster/sharding/protobuf/ClusterShardingMessageSerializer.scala
distributed-data/src/main/scala/org/apache/pekko/cluster/ddata/protobuf/SerializationSupport.scala

cluster-sharding/src/main/protobuf/ClusterShardingMessages.proto
distributed-data/src/main/protobuf/ReplicatedDataMessages.proto

cluster-sharding/src/main/protobuf/ClusterShardingMessages.proto
distributed-data/src/main/protobuf/ReplicatorMessages.proto

cluster-sharding/src/main/scala/org/apache/pekko/cluster/sharding/protobuf/ClusterShardingMessageSerializer.scala
distributed-data/src/main/scala/org/apache/pekko/cluster/ddata/protobuf/ReplicatorMessageSerializer.scala

cluster-sharding/src/main/scala/org/apache/pekko/cluster/sharding/protobuf/ClusterShardingMessageSerializer.scala
distributed-data/src/main/scala/org/apache/pekko/cluster/ddata/protobuf/ReplicatedDataSerializer.scala