anchor.diff:  const _DEFAULT_SHOW_NOTIFICATION = false;
   const _DEFAULT_PLAY_IN_BACKGROUND = PlayInBackground.enabled;
   const _DEFAULT_PLAYER = "DEFAULT_PLAYER";
  - const _DEFAULT_NETWORK_SETTINGS = NetworkSettings();
  +const _DEFAULT_NETWORK_SETTINGS = NetworkSettings();
   
   const METHOD_POSITION = "player.position";
   const METHOD_VOLUME = "player.volume";
  
positive.code:           headPhoneStrategy: headPhoneStrategy,
            phoneCallStrategy: phoneCallStrategy,
            notificationSettings:
            notificationSettings ?? defaultNotificationSettings,
            playInBackground: playInBackground,
          );
        }
  
negative.code:     PhoneCallStrategy phoneCallStrategy = PhoneCallStrategy.pauseOnPhoneCall,
      bool forceOpen = false, //skip the _acceptUserOpen
    }) async {
      if (forceOpen) {
        _acceptUserOpen = true;
      }
  
  