anchor.diff:  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.
  +// TODO(bparrishMines): Unit tests should be added to the iOS and Android platform code to verify the above warning.
   @Deprecated('This functionality is deprecated in AdMob without replacement.')
   enum MobileAdGender {
     unknown,
  
positive.code: // Copyright 2021 Google LLC
  //
  // Licensed under the Apache License, Version 2.0 (the "License");
  // you may not use this file except in compliance with the License.
  // You may obtain a copy of the License at
  //
  // https://www.apache.org/licenses/LICENSE-2.0
  //
  // Unless required by applicable law or agreed to in writing, software
  // distributed under the License is distributed on an "AS IS" BASIS,
  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  // See the License for the specific language governing permissions and
  // limitations under the License.
  
  // ignore_for_file: public_member_api_docs
  // ignore_for_file: deprecated_member_use_from_same_package
  
  import 'dart:async';
  import 'dart:io' show Platform;
  
negative.code:     @Deprecated('This functionality is deprecated in AdMob without replacement.')
          this.gender,
      @Deprecated('See `RequestConfiguration.maxAdContentRating`.')
          this.designedForFamilies,
      @Deprecated('See `RequestConfiguration.tagForChildDirectedTreatment')
          this.childDirected,
      this.testDevices,
      this.nonPersonalizedAds,
    });
  