Creating StreamProvider in flutter app needs correction - flutter

Question

I am learning about StreamProviders and ChangeNotifierProvider and how to use them in a flutter app.
The problem I am having is when I create the StreamProvider in main.dart. I am getting this error
Instance member 'getAgencyTrxn' can't be accessed using static access. (Documentation)
as designated by a red line under getAgencyTrxn(). I have been following a tutorial and also some posts here but none of them quite match what I am doing.
How do I fix this error?
Here is what I have so far:
main.dart
Widget build(BuildContext context) {
Provider.debugCheckInvalidValueType = null;
globals.newTrxn = true;
return MultiProvider(
providers: [
ChangeNotifierProvider<TrxnProvider>(create: (context) => TrxnProvider()),
StreamProvider<TrxnProvider>(
create: (context) => TrxnProvider.getAgencyTrxn(),
initialData: []),
],
child: MaterialApp(
debugShowCheckedModeBanner: false,
home: LoginScreen(),
),
);
}
trxn_provider.dart
class TrxnProvider extends ChangeNotifier {
final firestoreService = FirestoreService();
String? _clientFName;
String? _clientLName;
// Getters
String? get clientFName => _clientFName;
String? get clientLName => _clientLName;
// Setters
changeclientFName(String value) {
_clientFName = value;
notifyListeners();
}
changeclientLName(String value) {
_clientLName = value;
notifyListeners();
}
loadValues(QueryDocumentSnapshot trxns) {
_clientFName = trxns['clientFName'];
_clientLName = trxns['clientLName'];
}
getAgencyTrxn() {
return firestoreService.getAgencyTrxns();
}
saveTrxn() {
if (globals.newTrxn == true) {
_trxnId = uuId.v4();
globals.newTrxn = false;
}
var newTrxn = Trxns(
clientFName: clientFName,
clientLName: clientLName);
firestoreService.saveTrxn(newTrxn);
}
deleteTrxn(String trxnId) {
firestoreService.deleteTrxn(trxnId);
}
}
firestore_service.dart
class FirestoreService {
FirebaseFirestore _db = FirebaseFirestore.instance;
Stream<QuerySnapshot> getAgencyTrxns() async* {
yield* FirebaseFirestore.instance
.collection('agency').doc(globals.agencyId)
.collection('trxns')
.where('trxnStatus', isNotEqualTo: 'Closed')
.snapshots();
}
}

Answer 1

I found the solution. I needed to change this
create: (context) => TrxnProvider.getAgencyTrxn()
to this
create: (context) => TrxnProvider().getAgencyTrxn()