1. theta_req_res
2. request_notifier
3. RequestNotifier
4. updateRequest method

RequestNotifier class

1. Constructors
2. RequestNotifier
3. Properties
4. hashCode
5. hasListeners
6. requestText
7. runtimeType
8. Methods
9. addListener
10. dispose
11. noSuchMethod
12. notifyListeners
13. removeListener
14. toString
15. updateRequest
16. Operators
17. operator ==

void updateRequest(request) {
  _requestText = request;
  notifyListeners();
}