[https://stackoverflow.com/questions/63984838/is-it-possible-to-declare-a-method-as-final-in-a-class-in-dart] - 2022-01-12 05:43:11 - public:mzimmerm

dart, final, inherit, method, override - 5 | id:980592 -

Dart cannot use 'final' to prevent a method from being overriden. It uses a meta annotation @nonvirtual to prevent overriding. But it is just a hint.