copy method

Implementation

TopicSubscription copy() {
  return TopicSubscription(
    user: user,
    updated: updated,
    touched: touched,
    deleted: deleted,
    created: created,
    acs: acs,
    read: read,
    recv: recv,
    clear: clear,
    public: public,
    private: private,
    online: online,
    topic: topic,
    seq: seq,
    seen: seen,
    noForwarding: noForwarding,
    mode: mode,
  );
}