OrderLineReference

class OrderLineReference extends VendureEntity {    @Column()    quantity: number;    @Index()    @ManyToOne(type => OrderLine, line => line.linesReferences, { onDelete: 'CASCADE' })    orderLine: OrderLine;    @EntityId()    orderLineId: ID;}

class OrderModificationLine extends OrderLineReference {    constructor(input?: DeepPartial<OrderModificationLine>)    @Index()    @ManyToOne(type => OrderModification, modification => modification.lines)    modification: OrderModification;    @EntityId()    modificationId: ID;}

class RefundLine extends OrderLineReference {    constructor(input?: DeepPartial<RefundLine>)    @Index()    @ManyToOne(type => Refund, refund => refund.lines)    refund: Refund;    @EntityId()    refundId: ID;}