toJson method
Implementation
core.Map<core.String, core.dynamic> toJson() => {
if (freeGarageParking != null) 'freeGarageParking': freeGarageParking!,
if (freeParkingLot != null) 'freeParkingLot': freeParkingLot!,
if (freeStreetParking != null) 'freeStreetParking': freeStreetParking!,
if (paidGarageParking != null) 'paidGarageParking': paidGarageParking!,
if (paidParkingLot != null) 'paidParkingLot': paidParkingLot!,
if (paidStreetParking != null) 'paidStreetParking': paidStreetParking!,
if (valetParking != null) 'valetParking': valetParking!,
};