package webextension_polyfill.webnavigation; /** Fired when the reference fragment of a frame was updated. All future events for that frame will use the updated URL. **/ typedef OnReferenceFragmentUpdatedEvent = { /** Registers an event listener callback to an event. **/ function addListener(callback:(details:OnReferenceFragmentUpdatedDetailsType) -> Void, ?filters:EventUrlFilters):Void; /** Deregisters an event listener callback from an event. **/ function removeListener(callback:(details:OnReferenceFragmentUpdatedDetailsType) -> Void):Void; function hasListener(callback:(details:OnReferenceFragmentUpdatedDetailsType) -> Void):Bool; function hasListeners():Bool; };