Named export for ol/asserts

src/ol/tileurlfunction.js

@@ -1,7 +1,7 @@
 /**
  * @module ol/tileurlfunction
  */
-import _ol_asserts_ from './asserts.js';
+import {assert} from './asserts.js';
 import _ol_math_ from './math.js';
 import _ol_tilecoord_ from './tilecoord.js';
 
@@ -36,7 +36,7 @@ export function createFromTemplate(template, tileGrid) {
             .replace(dashYRegEx, function() {
               var z = tileCoord[0];
               var range = tileGrid.getFullTileRange(z);
-              _ol_asserts_.assert(range, 55); // The {-y} placeholder requires a tile grid with extent
+              assert(range, 55); // The {-y} placeholder requires a tile grid with extent
               var y = range.getHeight() + tileCoord[2];
               return y.toString();
             });