// Implementations for the two repository-shaped interfaces declared alongside.
namespaceCourier.Api.Repositories;publicsealedclassParcelRepository:IParcelRepository{publicstring?Find(intid)=>$"parcel-{id}";}publicsealedclassZplLabelPrinter:ILabelPrinter{publicstringPrint(stringparcelId)=>$"^XA^FD{parcelId}^FS^XZ";}