class defaultimport { default } from "https://deno.land/x/masx200_leetcode_test@10.6.1/NyZD2B/index.ts"; Constructorsnewdefault()MethodsaddItem(time: number,number: number,item: string,price: number,duration: number,): voidsell(time: number,customer: string,item: string,number: number,): number