toJson method
Implementation
core.Map<core.String, core.dynamic> toJson() => {
if (deviceId != null) 'deviceId': deviceId!,
if (failureDetails != null) 'failureDetails': failureDetails!,
if (failureReason != null) 'failureReason': failureReason!,
if (productId != null) 'productId': productId!,
if (userId != null) 'userId': userId!,
};