private void startSerialization() {
    serStartTime = stats.startMsgSerialization();
  }
Create message streamers splitting into versioned streamers, if required, for given list of
connections to remote nodes. This method can either return a single MsgStreamer object or a
List of MsgStreamer objects.
geode-core/src/main/java/org/apache/geode/internal/tcp/MsgStreamer.java