@Override
  public void fromData(DataInput in,
      DeserializationContext context) throws IOException, ClassNotFoundException {
    super.fromData(in, context);
    pattern = new PersistentMemberPattern();
    InternalDataSerializer.invokeFromData(pattern, in);
    cancel = in.readBoolean();
  }
An instruction to all members that they should forget about the persistent member described by
this pattern. TODO prpersist - This extends AdminRequest, but it doesn't work with most of the
admin paradigm, which is a request response to a single member. Maybe we need to a new base
class.
geode-core/src/main/java/org/apache/geode/internal/admin/remote/PrepareRevokePersistentIDRequest.java