Footer constructor Null safety

const Footer(
  1. {Key? key,
  2. required String footerText,
  3. required String buttonText,
  4. required void onPressed(
      )}
    )

    Implementation

    const Footer({
  Key? key,
  required this.footerText,
  required this.buttonText,
  required this.onPressed,
}) : super(key: key);