listenTo method Null safety

  1. @override
StreamSubscription<TutorialModel?> listenTo(
  1. String documentId,
  2. TutorialChanged changed,
  3. {TutorialErrorHandler? errorHandler}
)
override

Implementation

@override
StreamSubscription<TutorialModel?> listenTo(
    String documentId, TutorialChanged changed,
    {TutorialErrorHandler? errorHandler});