What is the correct way to extend a store class in Mobx in flutter? Wherever I try to put 'extends' i get a compilation error.
class Booking = _Booking with _$Booking;
abstract class _Booking with Store {}
class FlightBooking = _FlightBooking with _$FlightBooking ;
abstract class _FlightBooking with Store {}
You can achieve that by making _FlightBooking extend Booking:
class FlightBooking = _FlightBooking with _$FlightBooking ;
abstract class _FlightBooking extends Booking with Store {}
Store of mobx is a mixin, not a class. Mixins cannot be used to extend. You might want to look more into the documentation.