docs: function CacheModule(settings, cacheName, serviceHandler, serviceCallName) {
          if (serviceCallName == null) {
            serviceCallName = "call";
          }
          settings.init("cacheModules", {
            expiration: {
              "default": 1800000
            }
          });
          this.settings = settings;
          this.cache = {
            data: {},
            mtime: {},
            name: cacheName
          };
          this.service = serviceHandler;
          this.serviceCallName = serviceCallName;
        }