flutter-examples/bmi_calculator/lib/body_model.dart

enum Sex {
  male,
  female,
}

// User body model class
class BodyModel {
  Sex sex;
  int height;
  int weight;
  int age;

  BodyModel({
    required this.sex,
    required this.height,
    required this.weight,
    required this.age,
  });
}