toJson method

Implementation

core.Map<core.String, core.dynamic> toJson() => {
      if (invoiceId != null) 'invoiceId': invoiceId!,
      if (invoiceSummary != null) 'invoiceSummary': invoiceSummary!,
      if (lineItemInvoices != null) 'lineItemInvoices': lineItemInvoices!,
      if (operationId != null) 'operationId': operationId!,
      if (shipmentGroupId != null) 'shipmentGroupId': shipmentGroupId!,
    };