anchor.diff:    joinFile(dartProjectDir, ['pubspec.yaml'])
         .writeAsStringSync(createPubspec(includeFlutterWeb: false));
     await _runDartPubGet(dartProjectDir);
  +  joinFile(dartProjectDir, ['analysis_options.yaml'])
  +      .writeAsStringSync(createDartAnalysisOptions());
   
     final flutterProjectPath =
         Directory(path.join(templatesPath.path, 'flutter_project'));
  
positive.code: 
    return content;
  }
  
negative.code:   joinFile(flutterProjectDir, ['pubspec.yaml'])
        .writeAsStringSync(createPubspec(includeFlutterWeb: true));
    await _runFlutterPubGet(flutterProjectDir);
    // TODO(gspencergoog): Convert this to use the flutter recommended lints as
    // soon as those are finalized (the current proposal is to leave the
    // analysis_options_user.yaml file as-is and replace it with a package, to
    // avoid massive breakage).
    joinFile(flutterProjectDir, ['analysis_options.yaml']).writeAsStringSync(
        'include: package:flutter/analysis_options_user.yaml\n');
  }
  
  Future<void> _runDartPubGet(Directory dir) async {
  