toJson method
Implementation
core.Map<core.String, core.dynamic> toJson() => {
if (cost != null) 'cost': cost!,
if (currencyCode != null) 'currencyCode': currencyCode!,
if (originalPrice != null) 'originalPrice': originalPrice!,
if (price != null) 'price': price!,
if (priceEffectiveTime != null)
'priceEffectiveTime': priceEffectiveTime!,
if (priceExpireTime != null) 'priceExpireTime': priceExpireTime!,
if (priceRange != null) 'priceRange': priceRange!,
};