I'm a bit new to creating Salesforce apex. I'm looking to implement Saleforce CPQ API. Do we need to create test classes for the CPQ API Models? Link: https://developer.salesforce.com/docs/atlas.en-us.cpq_dev_api.meta/cpq_dev_api/cpq_api_models.htm
Sample api model code:
public class QuoteModel {
public SBQQ__Quote__c record;
public QuoteLineModel[] lineItems;
public QuoteLineGroupModel[] lineItemGroups;
public Integer nextKey;
public Boolean applyAdditionalDiscountLast;
public Boolean applyPartnerDiscountFirst;
public Boolean channelDiscountsOffList;
public Decimal customerTotal;
public Decimal netTotal;
public Decimal netNonSegmentTotal;
}