@interface ISRootMigrator : ISMigrator @property (nonatomic) BOOL isErase; @property (nonatomic) BOOL isRestoreFromBackup; - (BOOL)performMigration; - (id)performMigrationForPreferences:(id)a0; - (id)appendRegionalVariantsToLanguageIdentifiers:(id)a0 regionCode:(id)a1; - (id)importPreferredLanguagesForPreferences:(id)a0; - (id)importPreferredLanguages_macOS_10_9_forPreferences:(id)a0; - (id)performMigrationForUserPreferences:(id)a0 systemPreferences:(id)a1; - (void)updateAppleLanguagesSchemaVersionToCurrent; @end