Actions that can be executed on the notification (e.g. accepting or declining a call)
The body of the notification
A promise that resolves as soon as a notification is withdrawn and shouldn't be displayed anymore
The ID of the related conversation of the notification
OptionalgroupIdentifier used to group related notifications of the same type (e.g. message notifications are grouped by conversation ID).
For example use it as the tag field in WebNotifications to replace the previous "new message" notification for that conversation.
OptionalimageAn image which can be displayed on the notification
Defines whether the user should be able to dismiss the notification. If 'true', the notification can't be dismissed.
The title of the notification
The type of notification. Used to distinguish between call, message, and other notifications.
Notification about a missed call in a conversation.