toJson method

Implementation

core.Map<core.String, core.dynamic> toJson() => {
      if (lineItemId != null) 'lineItemId': lineItemId!,
      if (productId != null) 'productId': productId!,
      if (shipmentUnitIds != null) 'shipmentUnitIds': shipmentUnitIds!,
      if (unitInvoice != null) 'unitInvoice': unitInvoice!,
    };