text: "use strict";
  
  module.exports = class Item {
      constructor(id, quantity, type = Item.PHYSICAL) {
          this.id = id;
          this.quantity = quantity;
          this.type = type;
      }
  
      static get PHYSICAL() {
          return 1;
      }
  
      static get DIGITAL() {
          return 2;
      }
  
      static get SERVICE() {
          return 3;
      }
  
      static get AIRLINE() {
          return 4;
      }
  };