ISettingService settingService = new TextEditorSettingsService(); settingService.DeleteSetting("preferredFontSize");
ISettingService settingService = new MobileAppSettingsService(); settingService.DeleteSetting("wifiPassword");The package library for ISettingService depends on the specific implementation of the service being used. For example, TextEditorSettingsService and MobileAppSettingsService may belong to different libraries depending on their intended use cases and target platforms.