The Push Notification Event is triggered by the callback from push notifications on the device OS, either from a local source or a remote source. It generates a DS Map that is exclusive to this event and is stored in the special variable async_load.The Push Notification Event is triggered by the callback from push notifications on the device OS, either from a local source or a remote source. It generates a DS Map that is exclusive to this event and is stored in the special variable async_load.
This event is exclusively used by extensions (such as the Firebase Cloud Messaging extension), so please refer to your extension's documentation for instructions on using this event.