Dart APIlicense_detailLicenseDetailPageLicenseDetailPage const constructor LicenseDetailPage constructor Null safety const LicenseDetailPage({Key? key, required String packageName} ) Implementation const LicenseDetailPage({ super.key, required this.packageName, }); unself_license_detail license_detail LicenseDetailPage LicenseDetailPage const constructor LicenseDetailPage class Constructors LicenseDetailPage Properties hashCode key packageName runtimeType Methods build createElement debugDescribeChildren debugFillProperties noSuchMethod toDiagnosticsNode toString toStringDeep toStringShallow toStringShort Operators operator ==