CowDataHour constructor Null safety

CowDataHour(
  1. {DateTime? datetime,
  2. required int hour,
  3. required CowDataValue lactation,
  4. required CowDataValue ruminant,
  5. required CowDataValue eating,
  6. required CowDataValue drinking,
  7. required CowDataValue sitting,
  8. required CowDataValue standing,
  9. required CowDataValue activity,
  10. required CowDataValue cough,
  11. required CowDataValue heading,
  12. required CowDataValue digestive,
  13. required CowDataValue respiratory,
  14. required CowDataValue bcs}
)

Implementation

CowDataHour({
  this.datetime,
  required this.hour,
  required this.lactation,
  required this.ruminant,
  required this.eating,
  required this.drinking,
  required this.sitting,
  required this.standing,
  required this.activity,
  required this.cough,
  required this.heading,
  required this.digestive,
  required this.respiratory,
  required this.bcs,
});