Dart APIsettings_dataSettingsDataPageSettingsDataPage const constructor SettingsDataPage constructor Null safety const SettingsDataPage({Key? key} ) A description for SettingsDataPage Implementation const SettingsDataPage({super.key}); unself_settings_data settings_data SettingsDataPage SettingsDataPage const constructor SettingsDataPage class Constructors SettingsDataPage Properties hashCode key runtimeType Methods build createElement debugDescribeChildren debugFillProperties noSuchMethod toDiagnosticsNode toString toStringDeep toStringShallow toStringShort Operators operator ==