toJson method
Implementation
@override
Map<String, dynamic> toJson() => {
'workoutActivityType': _workoutActivityType.toString(),
'totalEnergyBurned': _totalEnergyBurned,
'totalEnergyBurnedUnit': _totalEnergyBurnedUnit?.toString(),
'totalDistance': _totalDistance,
'totalDistanceUnit': _totalDistanceUnit?.toString(),
};