anchor.diff:      this.contentUrl,
       this.customTargeting,
       this.customTargetingLists,
  -    this.nonPersonalizedAds
  +    this.nonPersonalizedAds,
     });
   
     final List<String> keywords;
  
positive.code: import 'package:flutter/services.dart';
  import 'package:flutter/widgets.dart';
  import 'package:meta/meta.dart';
  import 'package:collection/collection.dart';
  
  import 'ad_instance_manager.dart';
  
  /// The user's gender for the sake of ad targeting using [AdRequest].
  // Warning: the index values of the enums must match the values of the corresponding
  // AdMob constants. For example MobileAdGender.female.index == kGADGenderFemale.
  @Deprecated('This functionality is deprecated in AdMob without replacement.')
  enum MobileAdGender {
    unknown,
  
negative.code: abstract class Ad {
    /// Default constructor, used by subclasses.
    const Ad({@required this.adUnitId, @required this.listener})
        : assert(adUnitId != null),
          assert(listener != null);
  
    /// Receive callbacks from [Ad] lifecycle events.
  