strange request

        function init() {
          const res_flags = wialon.item.Item.dataFlag.base | wialon.item.Resource.dataFlag.reports;
          const unit_flags = wialon.item.Item.dataFlag.base;
          const initProps = [
            { type: "type", data: "avl_resource", flags: res_flags, mode: 0 },
            { type: "type", data: "avl_unit", flags: unit_flags, mode: 0 }
      ];

          let getterResult;

          const sess = wialon.core.Session.getInstance();
          sess.loadLibrary("resourceReports");

          function getterFunc(code) {
            if (code) {
              msg(wialon.core.Errors.getErrorText(code));
              return;
            }

            const res = sess.getItems("avl_resource");
            if (!res || !res.length) {
              msg("Resources not found");
              return
            }

            for (let i = 0; i < res.length; i++) {
              $("#res").append(`<option value='${res[i].getId()}'>${res[i].getName()}</option>`);
            }

            const units = sess.getItems("avl_unit");
            if (!units || !units.length) {
              msg("Units not found");
              return
            }

            for (let i = 0; i < units.length; i++) {
              const u = units[i];
              $("#units").append(`<p id='pbox'><input class='inpcheck' type='checkbox' value='${u.getId()}'/> ${u.getName()}</p>`);
            };

            getterResult = units
          }

          sess.updateDataFlags(initProps, getterFunc);

          return getterResult;
        }


        const bbb = init()
        // bbb === units