Suppress type warning on callbackId

Author: pkerpedjiev

src/higlass/widget.js

@@ -316,7 +316,7 @@ export default {
     });
 
     if (viewconf.views.length === 1) {
-      api.on(
+      /** @type {any} */ (api).on(
         "location",
         (/** @type {GenomicLocation} */ loc) => {
           model.set("location", locationToCoordinates(loc));
@@ -326,7 +326,7 @@ export default {
       );
     } else {
       viewconf.views.forEach((view, idx) => {
-        api.on(
+        /** @type {any} */ (api).on(
           "location",
           (/** @type{GenomicLocation} */ loc) => {
             let location = model.get("location").slice();