toJson method
Implementation
core.Map<core.String, core.dynamic> toJson() => {
if (labelExpiryDate != null) 'labelExpiryDate': labelExpiryDate!,
if (labelIssueDate != null) 'labelIssueDate': labelIssueDate!,
if (labelVersion != null) 'labelVersion': labelVersion!,
if (safDiscountPercentage != null)
'safDiscountPercentage': safDiscountPercentage!,
};