boolean getAndResetIsMetaRegion() {
    boolean isMetaRegion = this.isMetaRegion;
    this.isMetaRegion = false;
    return isMetaRegion;
  }
Adds a new part to this message that may contain a serialized object.
geode-core/src/main/java/org/apache/geode/internal/cache/tier/sockets/Message.java