FLUTTER MODULAR - INJEÇÃO DE DEPENDÊNCIA (NÃO INJETANDO EM SUBMODULES)

Boa tarde, pessoal,

Alguém saberia dizer o porquê de eu não conseguir capturar a injeção de dependência que estou fazendo nessa "SUB-SUB-MODULE" no FLUTTER_MODULAR?

class FlutterModularWidget extends StatelessWidget {

  @override
  Widget build(BuildContext context) {
    return ModularApp(
        module: AppModule(),
        child: AppWidget()
    );
  }
}

APP WIDGET

class AppWidget extends StatelessWidget {

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
        title: 'Flutter Modular - Examples',
    ).modular();
  }
}

APP MODULE

class AppModule extends Module {

  static const HOME_ROUTE = "/";
  static const BIND_ROUTE = "/bind";

  @override
  List<Bind> get binds => [];

  @override
  List<ModularRoute> get routes => [
    ChildRoute(HOME_ROUTE, child: (_, args) => HomePage()),
    ModuleRoute(BIND_ROUTE, module: BindModule())
  ];
}

COUNTER (OBJETO QUE ESTARÁ SENDO FORNECIDO VIA INJEÇÃO DE DEPENDÊNCIA)

class Counter {
  int _total = 0;

  void add() => this._total += 1;
  void sub() => this._total -= 1;

  int get total => this._total;

  void printTest() {
    print("IM COUNTER! >> ${this.total}");
  }
}

SUBMODULE 1

class  BindModule extends Module {

  static const SINGLETON_ROUTE = "/singleton";

  @override
  List<Bind> get binds => [];

  @override
  List<ModularRoute> get routes => [
    ModuleRoute(SINGLETON_ROUTE, module: BindSingletonModule())
  ];
}

SUBMODULE 1-1

class BindSingletonModule extends Module {

  static const BASE_PAGE = "/";
  static const ONE_PAGE = "/one";
  static const TWO_PAGE = "/two";

  @override
  List<Bind> get binds => [
    Bind.singleton((i) => Counter())
  ];

  @override
  List<ModularRoute> get routes => [
    ChildRoute(ONE_PAGE, child: (context, args) => BindSingletonOnePage())
  ];
}

ROTA (Que deseja capturar a injeção fornecida)

import 'package:examples/dependency_injection/flutter_modular/application/models/counter.dart';
import 'package:flutter/material.dart';
import 'package:flutter/widgets.dart';
import 'package:flutter_modular/flutter_modular.dart';

class BindSingletonOnePage extends StatefulWidget {
  @override
  _BindSingletonOnePageState createState() => _BindSingletonOnePageState();
}

class _BindSingletonOnePageState extends State<BindSingletonOnePage> {

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Center(child: Text("BIND - SINGLETON - ONE")),
      ),
      body: Container(
          padding: EdgeInsets.all(16.0),
          child: Center(
            child: Column(
              children: [
                modifyCounter(),
                counter()
              ],
            ),
          )),
    );
  }

  Container counter() {
    return Container(
        child: Center(
          child: Column(
            children: [
              Text("CONTADOR"),
              Text("VALOR: ${1}"),
            ],
          ),
        ));
  }

  Container modifyCounter() {
    return Container(
        child: Center(
          child: Column(
            children: [
              ElevatedButton(
                  child: Text("AUMENTAR"),
                  onPressed: () {
                    final Counter counter = Modular.get<Counter>();
                    counter.add();
                    counter.printTest();
                  }
              ),
              ElevatedButton(
                  child: Text("DIMINUIR"),
                  onPressed: () {
                    final Counter counter = Modular.get<Counter>();
                    counter.sub();
                    counter.printTest();
                  }
              )
            ],
          ),
        ));
  }

}

PROBLEMA

• Quando tendo realizar o "Modular.get();", ele simplesmente diz que não existe.
• Mas se caso eu fornecer esse "Counter" no "BindModule" invés do "BindSingletonModule", a captura funciona.

DÚVIDA

• Porque isso acontece?

(encontrei esse fórum que faz mais sentido para minha dúvida)