hive box get method returns dynamic and here i cant understand how to convert it to our required data type

here is how i have written data to box

  void saveData() {
    myBox.put('myInt',89);
    myBox.put('myString', 'Welcome');
    myBox.put('myMap', {'Name':'Vicky','Age':30});
    myBox.put('myList1', [10,20,30,40,50]);
    myBox.put('myList2', ['A','B','C','D','E']);
  }

and now i want to read from hive box and store into controller’s variables when fetchData method call..

class DataController extends GetxController {
  static DataController get instance => Get.find();
  RxBool isLoading = false.obs;
  
  Rx<int> myInt=0.obs;
  Rx<String> myString=''.obs;
  RxMap<String,dynamic> map=<String,dynamic>{}.obs;
  RxList<int> myList1=<int>[].obs;
  RxList<String> myList2=<String>[].obs;

  Box myBox = Hive.box('database');

  @override
  void onInit() {
    // TODO: implement onInit
    super.onInit();
    fetchData();
  }




  void fetchData() async {
    try {
      
      myInt.value=myBox.get('myInt') as int;
      myString.value=myBox.get('myString') as String;
      map.value=myBox.get('myMap') as Map<String,dynamic>;
      myList1.value=myBox.get('myList1') as List<int>;
      myList2.value=myBox.get('myList2') as List<String>;

    } catch (e) {
      print("Error is "+e.toString());
      isLoading.value = false;
    }
  }
}