anchor.diff:  import 'package:campus_mobile_experimental/core/models/spot_types_model.dart';
   import 'package:campus_mobile_experimental/core/services/networking.dart';
  -import 'dart:convert';
   
   class SpotTypesService {
     SpotTypesService() {
  
positive.code:   SpotTypeModel _spotTypeModel = SpotTypeModel();
  
    final String endpoint =
        "https://cqeg04fl07.execute-api.us-west-2.amazonaws.com/spot-types";
    Future<bool> fetchSpotTypesData() async {
      _error = null;
      _isLoading = true;
  
negative.code:       /// fetch data
        String _response = await _networkHelper.fetchData(endpoint);
        _spotTypeModel = spotTypeModelFromJson(_response);
  
        _isLoading = false;
        return true;
      } catch (e) {
  