text: import { Debouncer } from '@polymer/polymer/lib/utils/debounce.js';
  import { timeOut, animationFrame } from '@polymer/polymer/lib/utils/async.js';
  import { GridElement } from '@vaadin/vaadin-grid/src/vaadin-grid.js';
  import { ItemCache } from '@vaadin/vaadin-grid/src/vaadin-grid-data-provider-mixin.js';
  import './gridConnector.js';
  
  window.Vaadin.Flow.Legacy.Debouncer = Debouncer;
  window.Vaadin.Flow.Legacy.timeOut = timeOut;
  window.Vaadin.Flow.Legacy.animationFrame = animationFrame;
  window.Vaadin.Flow.Legacy.GridElement = GridElement;
  window.Vaadin.Flow.Legacy.ItemCache = ItemCache;
  