8 files declare their use of Package in Ubercart 8.4

Manual.php in shipping/uc_fulfillment/src/Plugin/Ubercart/FulfillmentMethod/Manual.php

NewPackageForm.php in shipping/uc_fulfillment/src/Form/NewPackageForm.php

NewShipmentForm.php in shipping/uc_fulfillment/src/Form/NewShipmentForm.php

PackageController.php in shipping/uc_fulfillment/src/Controller/PackageController.php

PackageConverter.php in shipping/uc_fulfillment/src/ParamConverter/PackageConverter.php

ShipmentController.php in shipping/uc_fulfillment/src/Controller/ShipmentController.php

ShipmentEditForm.php in shipping/uc_fulfillment/src/Form/ShipmentEditForm.php

uc_fulfillment.module in shipping/uc_fulfillment/uc_fulfillment.module

Organizes ordered products into packages and sets them up for shipment.