Export ol.events.listen.

Author: EmilZhou

src/index.js

@@ -565,8 +565,9 @@ ol.xml.parse = _ol_xml$parse;
 
 
 // export ol/events/listenOnce
-import { listenOnce } from "ol/events";
+import { listenOnce, listen, unlisten } from 'ol/events';
 ol.events.listenOnce = listenOnce;
+ol.events.listen = listen;
 
 // custome ol mmethod
 import { zoomByDelta as $ol$interaction$Interaction$zoomByDelta } from 'ol/interaction/Interaction';
@@ -645,7 +646,6 @@ ol.control.Zoom.prototype.zoomByDelta_ = function (delta) {
 
 import TileQueue from "ol/TileQueue";
 import TileState from "ol/TileState";
-import { listen, unlisten } from 'ol/events';
 import EventType from "ol/events/EventType";
 
 TileQueue.prototype.handleTileChange = function (event) {