toJson method
Implementation
core.Map<core.String, core.dynamic> toJson() => {
if (carrierRateName != null) 'carrierRateName': carrierRateName!,
if (flatRate != null) 'flatRate': flatRate!,
if (noShipping != null) 'noShipping': noShipping!,
if (pricePercentage != null) 'pricePercentage': pricePercentage!,
if (subtableName != null) 'subtableName': subtableName!,
};